Grupo Aval Acciones y Valores (AVAL) 20-F 27 Apr 20 2019 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Document Information [Line Items]
Entity Central Index Key	0001504764
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	001-36631
Entity Registrant Name	GRUPO AVAL ACCIONES Y VALORES S.A.
Entity Incorporation, State or Country Code	F8
Entity Address, Address Line One	Carrera 13 No. 26A - 47
Entity Address, City or Town	Bogotá D.C.
Entity Address, Country	CO
Entity Common Stock, Shares Outstanding | shares	7,143,227,185
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Document Accounting Standard	International Financial Reporting Standards
Entity Shell Company	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
ADR [Member]
Document Information [Line Items]
Title of 12(g) Security	American Depositary Shares, each representing 20 preferred shares, par value Ps 1.00 per preferred share
Entity Listing, Depository Receipt Ratio	20
Entity Listing, Par Value Per Share	$ 1
Security Exchange Name	NYSE
Trading Symbol	AVAL
Preference shares
Document Information [Line Items]
Title of 12(g) Security	Preferred Shares, par value Ps 1.00 per preferred share
Entity Listing, Par Value Per Share	$ 1
No Trading Symbol Flag	true
Business Contact [Member]
Document Information [Line Items]
Entity Address, Address Line One	Carrera 13 No. 26A - 47
Entity Address, City or Town	Bogotá D.C.
Entity Address, Country	CO
Country Region	+57
City Area Code	1
Local Phone Number	743-3222
Contact Personnel Name	Jorge Adrián Rincón
Contact Personnel Email Address	jrincon@grupoaval.com

Consolidated Statement of Finan

Consolidated Statement of Financial Position - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 30,117,236	$ 28,401,283
Trading assets	9,113,668	7,204,312
Investment Securities	26,000,311	23,030,159
Hedging derivative assets	166,598	30,138
Loans:
Commercial	101,655,660	102,408,977
Consumer	59,840,451	55,455,064
Mortgages	20,221,683	18,592,103
Microcredit	410,320	425,697
Total loans	182,128,114	176,881,841
Allowance for impairment losses	(8,185,797)	(8,196,187)
Total loans, net	173,942,317	168,685,654
Other receivables	11,702,301	9,300,643
Non-current assets held for sale	206,193	186,714
Investments in associates and joint ventures	987,962	982,743
Tangible assets:
Property, plant and equipment for own-use and given in operating lease, net	5,791,430	5,667,953
Right-of-use assets	2,125,558
Investment properties	928,566	836,324
Biological assets	104,857	84,206
Total Tangible assets	8,950,411	6,588,483
Intangibles
Concession arrangement rights	7,521,488	5,514,481
Goodwill	7,348,587	7,318,594
Other intangible assets	1,206,491	1,033,884
Total Intangibles	16,076,566	13,866,959
Income tax assets:
Current	895,208	593,837
Deferred	246,598	341,338
Total Income tax assets, net	1,141,806	935,175
Other assets	427,220	462,890
Total assets	278,832,589	259,675,153
Liabilities
Trading liabilities	962,438	811,305
Hedging derivative liabilities	94,298	195,539
Customer deposits:
Checking accounts	42,449,702	39,702,878
Savings accounts	59,352,760	57,221,439
Time deposits	73,225,189	66,853,012
Other	463,770	582,122
Total Customer deposits	175,491,421	164,359,451
Financial obligations
Interbank borrowings and overnight funds	9,240,479	6,814,078
Borrowings from banks and others	19,803,344	20,610,766
Bonds issued	21,918,268	20,140,350
Borrowings from development entities	3,882,485	3,646,796
Total borrowings	54,844,576	51,211,990
Provisions:
Legal related	194,680	125,929
Other	673,962	569,359
Total Provisions	868,642	695,288
Income tax liabilities:
Current	387,274	413,456
Deferred	2,871,309	2,160,942
Total Income tax liabilities	3,258,583	2,574,398
Employee benefits	1,234,980	1,264,881
Other liabilities	8,729,382	9,007,953
Total liabilities	245,484,320	230,120,805
Equity
Subscribed and paid-in capital	22,281	22,281
Additional paid-in capital	8,445,766	8,472,336
Retained earnings	10,289,073	8,598,319
Other comprehensive income	1,093,447	696,773
Equity attributable to owners of the parent	19,850,567	17,789,709
Non-controlling interest	13,497,702	11,764,639
Total equity	33,348,269	29,554,348
Total liabilities and equity	$ 278,832,589	$ 259,675,153

Consolidated Statement of Incom

Consolidated Statement of Income - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income calculated using the effective interest method
Loan portfolio	$ 18,491,167	$ 17,390,615	$ 17,899,967
Investments in debt securities	1,061,568	966,021	841,866
Total interest income	19,552,735	18,356,636	18,741,833
Deposits
Checking accounts	(413,939)	(350,173)	(309,333)
Savings accounts	(1,503,277)	(1,497,038)	(1,978,986)
Time deposits	(3,595,611)	(3,296,508)	(3,560,478)
Interest expense on deposits from customers	(5,512,827)	(5,143,719)	(5,848,797)
Financial obligations
Interbank borrowings and overnight funds	(380,858)	(266,064)	(287,361)
Borrowings from banks and others	(1,014,304)	(769,184)	(770,015)
Bonds issued	(1,220,437)	(1,162,699)	(1,162,203)
Borrowing from development entities	(138,791)	(143,175)	(159,323)
Total Financial obligations	(2,754,390)	(2,341,122)	(2,378,902)
Net interest income	11,285,518	10,871,795	10,514,134
Impairment (losses) recoveries on financial assets
Loans and other accounts receivable	(4,193,980)	(4,149,972)	(4,119,334)
Other financial assets	60,015	32,506	(142)
Recovery of charged-off financial assets	378,862	320,121	264,582
Net impairment loss on financial assets	(3,755,103)	(3,797,345)	(3,854,894)
Net interest income, after impairment losses	7,530,415	7,074,450	6,659,240
Income from commissions and fees	6,083,343	5,453,382	5,202,125
Expenses from commissions and fees	(627,999)	(613,763)	(623,114)
Net income from commissions and fees	5,455,344	4,839,619	4,579,011
Income from sales of goods and services	9,156,588	8,126,014	5,792,850
Costs and expenses of sales goods and services	(6,781,777)	(5,482,102)	(5,035,827)
Gross profit from sales of goods and services	2,374,811	2,643,912	757,023
Net trading income	761,911	582,709	561,362
Income from financial instruments designated at fair value, Net	217,616	205,803	209,937
Other income	1,282,963	1,358,681	1,151,745
Other expenses	(10,171,349)	(9,371,033)	(9,003,091)
Net income before tax expense	7,451,711	7,334,141	4,915,227
Income tax expense	(2,086,257)	(2,149,590)	(1,752,794)
Net income for the year	5,365,454	5,184,551	3,162,433
Net income for the year attributable to:
Owners of the parent	3,034,409	2,912,694	1,962,414
Non-controlling interest	2,331,045	2,271,857	1,200,019
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 5,365,454	$ 5,184,551	$ 3,162,433
Net income per share basic and diluted (in Colombian pesos, see note 25)	$ 136.188	$ 130.725	$ 88.076

Consolidated Statement of Other

Consolidated Statement of Other Comprehensive Income - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of comprehensive income [abstract]
Net income for the year	$ 5,365,454	$ 5,184,551	$ 3,162,433
Net gain (loss) on hedges of net investments in foreign operations:
Foreign currency translation differences from hedged foreign operations	95,329	1,124,732	(47,197)
Hedging derivative instrument	(50,318)	(547,310)	16,832
Hedging non-derivative instrument	(47,942)	(576,881)	30,568
Cash flow hedges	13,469	(19,789)	(2,340)
Foreign currency translation differences from unhedged foreign operations	128,135	(299,804)	(91,497)
Unrealized gains (losses) on securities at FVOCI (2017: available for sale securities)
Debt financial instruments	426,300	(107,084)	284,480
Equity financial instruments			57,245
Investments in associates and joint ventures	(9,061)	22,400	1,128
Income (expenses) tax	(40,038)	323,138	(97,698)
Other comprehensive income that will be reclassified to profit or loss, net of tax	515,874	(80,598)	151,521
Items that will not be reclassified to profit or loss
Effect of transfer investment properties for own use	5,288
Unrealized gains (losses) on equity securities at FVOCI	237,781	(134,084)
Actuarial (losses) gains from defined benefit pension plans	(61,222)	18,013	(100,232)
Income (expenses) tax	4,009	(13,082)	24,081
Other comprehensive income that will not be reclassified to profit or loss, net of tax	185,856	(129,153)	(76,151)
Total other comprehensive income	701,730	(209,751)	75,370
Total comprehensive income, net of taxes	6,067,184	4,974,800	3,237,803
Total comprehensive income for the year attributable to:
Owners of the parent	3,431,083	2,776,768	1,999,663
Non-controlling interest	2,636,101	2,198,032	1,238,140
Comprehensive income	$ 6,067,184	$ 4,974,800	$ 3,237,803

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - COP ($) $ in Millions	Issued capital [member]	Additional paid-in capital [member]	Retained earnings [member]	Accumulated other comprehensive income [member]	Equity attributable to owners of parent [member]	Non-controlling interests [member]	Total
Balance at Dec. 31, 2016	$ 22,281	$ 8,307,527	$ 6,522,128	$ 749,617	$ 15,601,553	$ 9,057,669	$ 24,659,222
Acquisition of non-controlling interest		(4,096)			(4,096)		(4,096)
Dividends declared			(1,310,124)		(1,310,124)	(711,578)	(2,021,702)
Other comprehensive income				37,249	37,249	38,121	75,370
Net income			1,962,414		1,962,414	1,200,019	3,162,433
Balance at Dec. 31, 2017	22,281	8,303,431	7,174,418	786,866	16,286,996	9,584,231	25,871,227
Change in accounting policies on January 1,			(419,304)	45,833	(373,471)	(19,647)	(393,118)
Balance at January 1,	22,281	8,303,431	6,755,114	832,699	15,913,525	9,564,584	25,478,109
Issuance of shares						988,072	988,072
Dilution		181,579			181,579	(181,579)
Dividends declared			(1,069,489)		(1,069,489)	(749,987)	(1,819,476)
Acquisition of NCI without a change in control		(12,674)			(12,674)	(54,483)	(67,157)
Other comprehensive income				(135,926)	(135,926)	(73,825)	(209,751)
Net income			2,912,694		2,912,694	2,271,857	5,184,551
Balance at Dec. 31, 2018	22,281	8,472,336	8,598,319	696,773	17,789,709	11,764,639	29,554,348
Change in accounting policies on January 1,			(5,101)		(5,101)	(21,881)	(26,982)
Balance at January 1,	22,281	8,472,336	8,593,218	696,773	17,784,608	11,742,758	29,527,366
Dividends declared			(1,336,861)		(1,336,861)	(830,160)	(2,167,021)
Acquisition of NCI without a change in control		(26,570)			(26,570)	(40,527)	(67,097)
Realized gain or loss on equity instruments			12,651		12,651	11,222	23,873
Withholding Tax over dividends			(14,344)		(14,344)	(21,692)	(36,036)
Other comprehensive income				396,674	396,674	305,056	701,730
Net income			3,034,409		3,034,409	2,331,045	5,365,454
Balance at Dec. 31, 2019	$ 22,281	$ 8,445,766	$ 10,289,073	$ 1,093,447	$ 19,850,567	$ 13,497,702	$ 33,348,269

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income before tax expense	$ 7,451,711	$ 7,334,141	$ 4,915,227
Reconciliation of net income before taxes and net cash provided by operating activities:
Depreciation of tangible assets and right-of-use assets	839,105	478,606	463,892
Amortization of intangible assets	459,576	478,568	437,822
Impairment losses on loans and other accounts receivable	4,237,381	4,171,801	4,141,573
Net interest income	(11,285,518)	(10,871,795)	(10,514,134)
Accrued dividends	(84,686)	(71,487)	(50,439)
Impairment of investments in associates and joint ventures	225	111,783	140,691
Gains on sales of non-current assets held for sale	(18,989)	(14,862)	(6,611)
Gains on sale of property plant and equipment for own-use	(24,249)	(347,510)
Valuations and interest from Concession agreements	(3,960,250)	(3,181,620)	(209,936)
Net (gains) losses on investment securities measured at FVOCI (2017: available for sale securities)	(52,908)	12,284	(51,712)
Writedown in concessions	5	1,136	2,875
Impairment loss on tangible assets	1,513	5,701	4,832
Foreign exchange losses (gains)	109,533	258,353	(98,977)
Share of undistributed profit of equity accounted investees, net of tax	(229,626)	(197,715)	(171,964)
Fair value adjustments to:
Derivative financial instruments	(142,075)	(427,208)	(164,920)
Non-current assets held for sale	(2,296)	25,136	37,818
Investment property	(19,597)	(39,415)	(46,675)
Biological assets	(18,914)	(20,606)	(13,503)
Changes in operating assets and liabilities:
Trading assets	(584,598)	709,398	2,316,539
Other accounts receivable	(374,435)	(630,394)	(804,970)
Derivative financial instruments	(154,614)	219,406	49,586
Other assets	(242,127)	13,710	177,648
Other liabilities and provisions	143,127	2,757,733	283,036
Employee benefits	(93,993)	42,617	46,514
Loans and receivables	(8,740,036)	(8,245,223)	(14,511,561)
Customer deposits	10,409,443	3,965,382	11,460,395
Interbank borrowings and overnight funds	2,358,074	1,712,600	(1,461,985)
Borrowings from development entities	9,115	(680)	(2,229)
Borrowings from banks and others	(3,197,960)	1,482,124	514,474
Interest received	18,507,769	17,602,454	18,124,814
Interest paid	(7,860,077)	(7,135,811)	(8,326,553)
Interest paid on leases	(194,589)
Income tax paid	(1,610,046)	(1,467,045)	(1,474,250)
Wealth tax and equity tax payments			(99,001)
Net cash provided by operating activities	5,634,994	8,731,562	5,108,316
Cash flows from investing activities:
Acquisition of property plant and equipment	(679,016)	(548,984)	(473,752)
Acquisition of investment property	(2,371)	(54,405)	(75,817)
Additions of biological assets	(20,559)	(20,900)	(24,409)
Additions to investments in associates and joint ventures	(2,789)
Proceeds from sales of investments in associates and joint ventures	(6,060)
Capitalized leasing cost	1,357
Additions of concession arrangement rights	(651,355)	(465,273)	(610,909)
Additions of other intangible assets	(377,471)	(389,151)	(268,757)
Acquisition of FVOCI (2017 and 2016 – available-for sale-financial-assets)			(14,908,266)
Acquisition of FVOCI (2017 and 2016 – available-for sale-financial-assets)	(25,378,675)	(16,380,948)
Proceeds from sales of FVOCI (2017 and 2016 – available-for sale-financial-assets)			12,676,512
Proceeds from sales of FVOCI (2017 and 2016 – available-for sale-financial-assets)	23,439,811	14,435,809
Proceeds from sales of property and equipment	77,070	56,346	69,793
Proceeds from sales of investment properties	57,027	80,854	28,431
Proceeds from sales of biological assets	41,114	32,239	19,775
Proceeds from sales of non-current assets held for sale	154,569	66,657	85,395
Purchases of financial assets at amortized cost (2017 held-to-maturity)	(3,678,335)	(3,887,773)	(3,704,730)
Redemptions of financial assets at amortized cost (2017 held-to-maturity)	3,642,470	3,810,438	3,365,150
Dividends received from investments	307,566	206,549	171,423
Business combination, net of cash			40,093
Effect of loss of control of subsidiaries		11,238
Net cash (used in) provided by investing activities	(3,063,527)	(3,047,304)	(3,610,068)
Cash flows from financing activities:
Dividends paid to shareholders	(1,266,920)	(1,128,535)	(1,307,525)
Dividends paid to non-controlling interest	(804,302)	(745,932)	(768,769)
Issuance of debt securities	3,148,887	1,095,892	4,548,108
Payment of outstanding debt securities	(1,544,225)	(1,139,897)	(3,913,694)
Leases	(362,334)
Issuance of common shares		988,072
Acquisition of NCI without a change in control	(67,097)	(67,157)	(4,096)
Net cash used in financing activities	(895,991)	(997,557)	(1,445,976)
Effect of foreign currency changes on cash and cash equivalents	40,477	1,377,744	91,562
Increase (decrease) in cash and cash equivalents	1,715,953	6,064,445	143,834
Cash and cash equivalents at beginning of year	28,401,283	22,336,838	22,193,004
Cash and cash equivalents at end of year	$ 30,117,236	$ 28,401,283	$ 22,336,838

REPORTING ENTITY

REPORTING ENTITY	12 Months Ended
	Dec. 31, 2019
Disclosure Of Consolidated And Separate Financial Statements Explanatory [Abstract]
Disclosure of notes and other explanatory information [text block]	NOTE 1 – REPORTING ENTITY Grupo Aval Acciones y Valores S.A. (hereinafter the “The Group” or “Grupo Aval”) was established under Colombian law in January 7, 1994, with its main offices and business address registered in Bogotá, D.C., Colombia. The corporate purpose of Grupo Aval is the purchase and sale of securities issued by financial and commercial entities. Grupo Aval is the majority shareholder of Banco de Bogotá S.A., Banco de Occidente S.A., Banco Popular S.A. and Banco Comercial AV Villas S.A. , entities whose main purpose is to perform all transactions, operations and services inherent to the banking business, pursuant to applicable laws and regulations. Furthermore, through its direct and indirect investments in Corporación Financiera Colombiana S.A. (“Corficolombiana”) and in Sociedad Administradora de Fondos de Pensiones y Cesantías Porvenir S.A. (“Porvenir”), Grupo Aval engages in investment banking activities, invests in the non-financial sector and manages pensions and severance funds in Colombia. In performing its activities and pursuant to the corporate bylaws, Grupo Aval may (i) promote the creation of all types of companies relating to its corporate purpose; (ii) represent individuals and companies involved in similar or complementary activities; (iii) grant or receive loans with or without interest; (iv) submit its properties as collateral; (v) issue, endorse, acquire, protest, cancel, or pay bills of exchange, checks, promissory notes or any other type of financial instruments, accept or submit them as payment; (vi) acquire, sell, tax, lease or manage any kind of assets; (vii) subscribe or acquire any kind of investments and sell or otherwise dispose of them; (viii) acquire and sell shares in companies that purse similar or complementary corporate interests ; (ix) render services in areas relating to its activities, experience and knowledge; and (x) carry out or participate, in acts and contracts relating to the aforementioned activities, enabling the exercise of rights and compliance of the obligations of The Group. The duration of Grupo Aval set forth under the bylaws is until May 24, 2044, but the Company may be dissolved before such term expires, or it may be extended by free decision of Grupo Aval shareholders meeting. When preparing its consolidated financial statements, Grupo Aval Acciones y Valores S.A., directly consolidates the following entities: Banco de Bogotá S.A. Banco de Bogotá S.A., in which Grupo Aval holds 68.74% of the voting rights and 68.74% of the ownership interest as of December 31, 2019, was established as a bank on November 15, 1870. It was authorized to operate under the terms of the renewal resolution No. 3140 dated September 24, 1993 issued by the Superintendency of Finance. The commercial purpose of Banco de Bogotá is to participate and perform all operations and contracts legally authorized to commercial banking, subject to the limitations and requirements set forth under Colombian laws and regulations. The following table presents details of Banco de Bogotá’s most significant subsidiaries which are indirectly consolidated by Grupo Aval as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Main local direct subsidiaries Almaviva S.A. Logistics services. Bogotá, Colombia 95.81 % 65.85 % Fiduciaria Bogotá S.A. Management of trust funds. Bogotá, Colombia 94.99 % 65.29 % Porvenir S.A. Management of pension and severance funds. Bogotá, Colombia 100 % 75.67 % Main international direct subsidiaries Banco de Bogotá Panamá S.A. Commercial banking services. Panamá, Republic of Panamá 100 % 68.74 % Leasing Bogotá Panamá S.A. Holding company of BAC Credomatic Inc. Panamá, Republic of Panamá 100 % 68.74 % Main indirect subsidiaries BAC Credomatic Inc. Holding company in charge of managing the banking and related subsidiaries in Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panamá, among others. (Subsidiary of Leasing Bogotá Panamá S.A.). Panamá, Republic of Panamá 100 % 68.74 % Banco de Occidente S.A. Banco de Occidente S.A., in which Grupo Aval holds 72.27% of the voting rights and 72.27% of the ownership interest as of December 31, 2019, was established as a banking entity on September 8, 1964. It was authorized to operate under the terms of the renewal resolution No. 3140 dated September 24, 1993 issued by the Superintendency of Finance. The commercial purpose of Banco de Occidente is to participate and perform all operations and contracts legally authorized to commercial banks, subject to the limitations and requirements set forth under Colombian laws and regulations. The following table presents the details of Banco de Occidente’s most significant subsidiaries, which are indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Banco de Occidente (Panamá). S.A. Commercial banking services. Panamá, Republic of Panamá 95.00 % 68.66 % Fiduciaria de Occidente S.A. Management of trust funds. Bogotá, Colombia 99.99 % 70.78 % Occidental Bank Barbados Ltd. Commercial banking services. Barbados 100 % 72.27 % Banco Popular S. A. Banco Popular S. A., in which Grupo Aval holds 93.74% of the voting rights and 93.74% of the ownership interest as of December 31, 2019, was established as a banking entity on July 5, 1950. It was authorized to operate under the terms of the renewal resolution No. 3140 dated September 24, 1993 issued by the Superintendency of Finance. Its commercial purpose is to participate in and perform all operations and contracts legally authorized to commercial banks, subject to the limitations and requirements set forth under Colombian laws and regulations. The following table presents the details of Banco Popular’s most significant subsidiaries which are indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Alpopular S.A. Conservation and custody of documents; transportation of products at national and international levels. Bogotá, Colombia 71.10 % 66.65 % Fiduciaria Popular S.A. Management of trust funds. Bogotá, Colombia 94.85 % 88.91 % Banco Comercial AV Villas S. A. Banco Comercial AV Villas S. A., in which Grupo Aval holds 80.39% of the voting rights and 79.87% of the ownership interest as of December 31, 2019, was incorporated as a banking entity on November 24, 1972. It was authorized to operate under the terms of the renewal resolution No. 3352 dated August 21, 1992 issued by the Superintendency of Finance. The commercial purpose of Banco AV Villas is to participate and perform all operations and contracts legally authorized to commercial banks, subject to the limitations and requirements imposed by Colombian laws and regulations. The following table presents the details of Banco AV Villas’ most significant subsidiary which is indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval A Toda Hora S.A. ATH ATM network services and maintenance and software development Bogotá, Colombia 100 % 78.90 % Corporación Financiera Colombiana S.A. – Corficolombiana S.A. Corficolombiana S.A., in which Grupo Aval and its subsidiaries own 53.45% of the aggregate voting rights and Grupo Aval has 38.63% of the ownership interest as of December 31, 2019 is a merchant bank authorized to operate by the Superintendency of Finance by the resolution of October 18, 1961. Corficolombiana´s core business is the active management of an equity portfolio through controlling and non-controlling investments in key strategic sectors that including infrastructure, energy and gas, agribussines and hotels. The following table presents the details of Corficolombiana´s most significant subsidiaries which are indirectly consolidated by Grupo Aval, at December 31, 2019: Total Total voting ownership Main Indirect Subsidiaries rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Promigas S.A. E.S.P. Transportation and distribution of natural gas. Barranquilla, Colombia 50.88 % 19.65 % Estudios y Proyectos del Sol S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % Colombiana de Licitaciones y Concesiones S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % Proyectos y Desarrollos Viales del Pacífico S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % CFC Gas Holding S.A.S. Investment Company Bogotá, Colombia 100 % 38.63 % Concesionaria Vial Del Pacifico S.A.S. Infrastructure projects. Sabaneta Antioquia 89.90 % 34.73 % Grupo Aval Limited Grupo Aval Limited is a subsidiary of Grupo Aval in Cayman Islands. It was established on December 29, 2011. Grupo Aval Limited is a limited liability company registered with the Assistant of the Registrar of Companies of Cayman Islands under registry number MC‑265169, with its Main Office located in Ugland House, South Church Street, George Town, Grand Cayman KY1‑1104. It was constituted as a special purpose vehicle for issuing foreign debt. Grupo Aval International Limited Grupo Aval International Limited, was a wholly owned subsidiary of Grupo Aval in Cayman Islands, originally established on October 8, 2012, which was merged in December 2019 with Grupo Aval Limited. This transaction did not impact the results reported as of December 31, 2019. Other relevant events Leasing Bogotá S.A. Panamá (“Leasing Bogotá”), a wholly owned subsidiary of Banco de Bogotá, entered into an agreement on October 31, 2019 to acquire 99.1% of the share capital of Multi Financial Group, Inc. (“MFG”), the holding company for Multibank Panama for an estimated cash purchase price of U.S.$728.0 million. The agreement provides for the possibility that shareholders of the remaining 0.9% of MFG’s share capital, adhere to the transaction prior to the closing date. The transaction is expected to close in the second quarter of 2020 after the required regulatory approval process is completed. Legal and regulatory restrictions Grupo Aval and its Colombian subsidiaries are subject to the following restrictions to transfer profits or perform transactions, in accordance with the legal requirements in Colombia: · Before distributing any dividends to their shareholders, the companies should assign 10% of their profits to a legal reserve until the reserve equals 50% of paid-in capital. · The Subsidiaries operating in the financial sector may not grant loans to other companies of Grupo Aval that exceed 10% of their regulatory capital if the loan is unsecured or 25% if it is granted with an acceptable security or third party guarantee, as per Superintendency of Finance rules. There is an exception to this rule that extends the maximum quota up to 25% (without guarantee) when it comes to loans to 4G infrastructure projects. These same limits apply to companies which are not part of Grupo Aval. · Pursuant to article 2.1.2.1.8 of Decree 2555 of 2010, banks in Colombia have a lending limit of 30% of their regulatory capital with respect to loans granted to financial entities. These same limits apply all financial entities. Foreign subsidiaries of Grupo Aval do not have any restriction to transfer dividends to the parent company. Lending operations in general have restrictions similar to those of banks in Colombia, as described above. Grupo Aval and its subsidiaries do not have significant restrictions on their ability to access or use their assets and settle their liabilities other than those resulting from the supervisory frameworks within which subsidiaries of the financial sector operate. The supervisory frameworks require subsidiaries of the financial sector to keep certain levels of regulatory capital (see note 4.4) and liquid assets (see note 4.3), limit their exposure to other parts of Grupo Aval and its subsidiaries and comply with other ratios.

BASIS OF PREPARATION OF THE CON

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2019
Disclosure of voluntary change in accounting policy [abstract]
Disclosure of voluntary change in accounting policy [text block]	NOTE 2 – BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The consolidated financial statements of Grupo Aval have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB). The consolidated financial statements have been prepared on the basis of historical cost, except for financial assets at Fair Value Through Profit or Loss (“FVTPL”), at Fair Value Through Other Comprehensive Income (“FVOCI”) (2017: available-for-sale), derivative financial instruments, investment properties, assets held for sale and biological assets which are measured at fair value. Additionally, non-current assets held for sale are measured at the lower value of their carrying value at the time of transfer and fair value, minus estimated costs of disposal and employee benefits which are measured at the present value of the defined benefit obligation (see note 2.24). The consolidated financial statements were authorized for issuance by the Audit Committee on April 24, 2020. The following are the main accounting policies applied in preparing the consolidated financial statements of Grupo Aval as of December 31, 2019, 2018 and 2017 2.1 Basis of preparation a) The consolidated financial statements are prepared as follows: · The consolidated statement of financial position presents the company´s assets and liabilities based on liquidity since it provides reliable and more relevant information than separate current and non-current classifications. · The consolidated statements of income and other comprehensive income are presented separately. The Consolidated Statement of Income is presented according to their function of expense, as this method provides reliable and more relevant information. · The consolidated statement of cash flows is presented using the indirect method. Accordingly, net cash flows from operating activities are determined by reconciling net income before tax expense, with the effects of non-cash items, net changes in assets and liabilities from operating activities, and for any other effects that are not classified as investing or financing activities. Revenue and expenses due to interest received and paid are part of operating activities. b) Grupo Aval prepares its consolidated financial statements incorporating its controlled entities. Grupo Aval controls an investee if and only if it complies with the following elements: · Power over the investee entitling Grupo Aval to direct any relevant activities that significantly affect the investee's performance. · Exposure, or rights to variable returns from its involvement with the investee. · Ability to affect those returns through its power over the investee. In order to comply with this requirement, Grupo Aval carries out an annual reassessment of all its contractual relationships. No new entities are required to be consolidated as a result of this process, including no structured entities. The financial statements of Grupo Aval´s subsidiaries are included in the consolidated financial statements since the date on which Grupo Aval acquires control or following control until the date on which control is lost. During the consolidation process, Grupo Aval combines the assets, liabilities and profits or losses of those entities under control, previously aligning the accounting policies in all the subsidiaries. Such process includes eliminating intra-group balances and transactions and any unrealized and realized income and expense (except for foreign currency translation gains or losses and those taxes which are not subject to elimination) arising from intra-group transactions. Unrealized and realized losses are eliminated in the same way as unrealized and realized gains but only to the extent that there is no evidence of impairment. Non-controlling interests are presented in the equity of the consolidated statement of financial position of Grupo Aval separately from the equity attributable to owners of the parent company. For consolidation purposes, the statements of financial position and income of Grupo Aval´s foreign subsidiaries are translated to Colombian pesos, as follows: · Assets and liabilities are translated at the closing exchange rate at the reporting date; · Income, expense and cash flows of foreign operations are translated at monthly average exchange rates since those averages approximate the exchange rates of each specific transaction; · All resulting exchange differences are recognized in other comprehensive income and accumulated in the foreign currency translation reserve, except to the extent that the translation difference is allocated to non-controlling interests. c) Associates are companies in which Grupo Aval has significant influence but not control and are accounted for under the equity method. They are presented in the statement of financial position as “Investments in associates and joint ventures” (additionally see Note 2.1 “d Joint arrangements”). Grupo Aval exercises significant influence over another entity if it owns, directly or indirectly, 20% or more of the voting power of the investee, unless it is clearly evidenced that such influence does not exist. Under the equity method, investments in associates are initially recognized at cost and subsequently adjusted by Grupo Aval´s share in the associate’s income and other comprehensive income with credit or charge to Grupo Aval’s profit or loss account and other comprehensive income, respectively of the net income, and other comprehensive income of the investee. Dividends received from associates and joint ventures are recognized as a reduction in the carrying amount of the investment. Where Grupo Aval´s share of losses in an equity-accounted investment equals or exceeds its interest in the entity, including any other unsecured long-term receivables, Grupo Aval does not recognize further losses, unless it has incurred obligations or made payments on behalf of the other entity. Unrealized gains on transactions between Grupo Aval and its associates are eliminated to the extent of Grupo Aval’s interest in these entities. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the asset transferred. Accounting policies of associates have been changed where necessary to ensure consistency with the policies adopted by Grupo Aval. The carrying amount of associates are tested for impairment. d) A joint arrangement is one in which two or more parties have joint control of the arrangement. Joint arrangements are divided into joint operations or joint ventures. The classification depends on the contractual rights and obligations of each investor, rather than the legal structure of the joint arrangement, the joint operations in which the parties having joint control of the agreement have rights to the assets and obligations with respect to the liabilities relating to the agreement. The joint ventures, wherein the parties having joint control, are entitled to the net assets of the agreement. Grupo Aval recognizes joint operations in the consolidated financial statements based on their proportional and contractual participation in each of the assets, liabilities and profit or loss of the contract or entity wherein the agreement is held. Grupo Aval recognizes joint ventures through the equity method, in the same manner as investments in associates. 2.2 Functional and presentation currency Considering that the majority of the Group´s business activities as well as the generation and use of cash of Grupo Aval is in Colombian pesos, the Colombian peso is the currency that most accurately represents the economic environment of Grupo Aval’s operations, both for the consolidated financial statements and for the parent company. Foreign subsidiaries have functional currencies different from the Colombian peso, which are translated to Colombian pesos for presentation purposes. 2.3 Monetary assets and liabilities denominated in foreign currencies are translated into the functional currency using the prevailing exchange rate at the reporting date. Non-monetary assets and liabilities denominated in foreign currencies in terms of historical costs are measured using the exchange rate at the transaction date. Financial instruments measured at fair value are converted using the exchange rate at the date the fair value was determined. Profits or losses resulting from the translation process are recognized in profit or loss, except for financial instruments designated as hedging instruments. As of December 31, 2019 and 2018, the representative market rates as computed and certified by the Superintendency of Finance (for the U.S. $ which is the most representative foreign currency for Grupo Aval´s transactions) were Ps. 3,277.14 and Ps. 3,249.75 per U.S. $1, respectively. 2.4 Changes in accounting policies A . IFRS 16 “Leases” Grupo Aval has adopted IFRS 16 using the modified retrospective approach with the cumulative effect of initial application being recognized on January 1, 2019. Grupo Aval has not restated comparatives for the 2018 reporting period, as permitted under the specific transitional provisions in the standard. The reclassifications and the adjustments arising from the new leasing rules are therefore recognized in the opening Condensed Consolidated Statement of Financial Position on January 1, 2019 . IFRS 16 introduced a single lessee’s accounting model. As a result, Grupo Aval, as a lessee, has recognized right-of-use assets representing its rights to use the underlying assets and lease liabilities representing its obligation to make lease payments. Lessor accounting remains unchanged from previous accounting policies. Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: · fixed payments (including in-substance fixed payments), less any lease incentives receivable, · variable lease payments that are based on an index or a rate, · amounts expected to be payable by the lessee under residual value guarantees, · the exercise price of a purchase option if the lessee is reasonably certain it will exercise that option, and · payments of penalties for terminating the lease, if the lease term reflects the lessee exercising that option. The lease payments are discounted using the interest rate implicit in the lease, if that rate can be determined, or Grupo Aval’s incremental borrowing rate. Right-of-use assets are measured at cost comprised of the following: · the amount of the initial measurement of lease liability, · any lease payments made at or before the commencement date less any lease incentives received, · any initial direct costs, and · restoration costs. Payments associated to short-term leases and leases of low-value assets are recognized on a straight-line basis as a rent expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less. Low-value leased assets comprise IT-equipment and small items of office furniture. Extension and termination options are included in a number of property and equipment leases across Grupo Aval. These terms are used to maximize operational flexibility in terms of managing contracts. Adjustments recognized on adoption of IFRS 16 Upon adoption of IFRS 16, Grupo Aval recognized lease liabilities in relation to leases which had previously been classified as ‘operating leases’ under the principles of IAS 17 Leases. These liabilities were measured at the present value of the remaining lease payments, discounted using the lessee’s incremental borrowing rate as of January 1, 2019. Some right-of-use assets related with property leases were measured on a retrospective basis as if the new rules had always been applied. Other right-of use assets were measured at the amount equal to the lease liability, adjusted by the amount of any prepaid or accrued lease payments relating to that lease recognized in the balance sheet as of January, 1, 2019. There were no onerous lease contracts that would have required an adjustment to the right-of-use assets at the date of initial application. Recognition of right-of-use January 1, 2019 Right of use assets Ps. 2,217,380 Deferred tax liabilities (636,017) Total 1,581,363 Retained earnings Ps. (40,272) Retained earnings related to right-of-use net deferred tax 13,290 Total Ps. (26,982) Net effect Ps. Recognition of financial liabilities January 1, 2019 Financial liabilities - Lease liabilities Ps. 2,225,545 Provisions for right-of-use dismantling 32,107 Deferred tax assets (649,307) Net effect Ps. 1,608,345 When measuring lease liabilities for leases thar were classified as operating leases, Grupo Aval discounted lease payments using its incremental borrowing rate at January 1, 2019. The weighted-average rate applied was 6.07% January 1, 2019 Operating lease commitments at December 31, 2018 as disclosed under IAS 17 in the Group’s consolidated financial statements Ps. Discounted using the incremental borrowing rate Add/(less): adjustments as a result of a different treatment of extension and termination options 1,275,475 Add/(less): adjustments relating to changes in the index or rate affecting variable payments (Less): Recognition exemption for leases of low-value assets (35,987) (less): Recognition exemption for leases with less than 12 months of lease term at transition Lease liabilities recognised at 1 January 2019 Ps. 2,225,545 In applying IFRS 16 for the first time, the Group has used the following practical expedients permitted by the standard: · the use of a single discount rate to a portfolio of leases with reasonably similar characteristics, · the accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases, · the exclusion of initial direct costs for the measurement of the right-of-use asset at the date of initial application, and · the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease. Grupo Aval has also elected not to reassess whether a contract is or contains a lease at the date of initial application. Instead, for contracts entered into before the transition date Group Aval relied on its assessment made applying IAS 17 and IFRIC 4 for determining whether an arrangement contains a lease. Impact on changes in accounting policies, as of January 1, 2018 The following table summarizes the impact, net of taxes, of the adoption of IFRS 15 and IFRS 9 in the statement of financial position as of January 1, 2018. Impact of Reference the adoption IFRS 15 Revenue from contracts with customers B Ps. 391,281 IFRS 9 Financial Instruments C (784,399) Net impact at January 1, 2018 Ps. (393,118) B. IFRS 15 “Revenue from contracts with customers” Grupo Aval has adopted Revenue from Contracts with Customers IFRS 15 using the cumulative effect method, with the effect of initial adoption recognized on January 1, 2018. Accordingly, the information presented for 2017, has not been restated – i.e. it is presented, as previously reported, under – IAS 18 Revenue, IAS 11 Construction Contracts, IFRIC 12 “Service Concession Arrangements” and related interpretations. Additionally, the disclosure requirements in IFRS 15 have not generally been applied to comparative information. The following table summarizes the impact net of taxes, of the adoption of IFRS 15 in the statement of financial position as of January 1, 2018. Impact of the adoption of IFRS 15 Operation and construction services (Concessions) as of January 1, 2018 Commissions related to funding (see note 16) Ps. 12,744 Contract liability (see note 24) (531,804) Financial assets (see note 16) 450,878 Intangible assets (see note 16) 619,949 Deferred tax effect (181,680) Ps. 370,087 Customer loyalty programs Customer loyalty programs 32,232 Deferred tax effect (11,038) Ps. 21,194 Net impact retained earnings at January 1, 2018 Ps. 391,281 C. IFRS 9 “Financial Instruments” The following table summarizes the impact, net of tax, of our transition to IFRS 9 on the opening balance of reserves and retained earnings and Other Comprehensive Income (“OCI”) as of January 1, 2018 (for a description of the transition method, see (iv) below). Impact of adopting IFRS 9 on opening balance of: Reserves and Total retained earnings OCI equity Recognition of changes in measurement due in classification under IFRS 9 Ps. — Ps. 71,229 Ps. 71,229 Recognition of expected credit losses under IFRS 9 (1,255,060) 56,198 (1,198,863) Impact on equity method due to impairment of other accounts receivable from associates — (3,691) (3,691) Deferred tax effect 366,650 (19,725) 346,926 Impact as of January 1, 2018 Ps. (888,411) Ps. 104,011 Ps. (784,399) Impairment of financial assets Loss allowance as of December 31, 2017 under IAS 39 (5,875,018) Additional impairment recognized as of January 1, 2018 on: Loans (1,163,009) Credit Commitments (16,217) Other accounts receivable (18,907) Impact on equity method investees due to impairment of other accounts receivable from associates (3,691) Debt securities measured at amortized cost (672) Other financial assets (58) Loss allowance as of January 1, 2018 under IFRS 9 (7,077,572) · Recognition of expected credit losses under IFRS 9 for debt financial assets at FVOCI impacts OCI and retained earnings at the same time, therefore the net impact on total equity is zero. The table below shows the impact on retained earnings from impairment: Impairment loss due to credit risk as of December 31, 2017 under IAS 39 (71,708) Additional impairment recognized as of January 1, 2018 on: Debt securities measured at FVOCI (56,198) Loss allowance as of January 1, 2018 under IFRS 9 (127,906) 2.5 Financial assets and financial liabilities i. Recognition and initial measurement Grupo Aval initially recognizes loans and advances, deposits, debt securities issued and subordinated liabilities on the date on which they are originated. All other financial instruments (including regular-purchases and sales of financial assets) are recognized on the trade date, which is the date in which Grupo Aval becomes a party to the contractual provisions of the instrument. A financial asset or financial liability is initially measured at fair value and in addition for instruments measured at amortized cost or FVOCI, transaction costs are added if directly attributable to its acquisition or issuance. ii. Classification Financial assets On initial recognition, a financial asset is classified as: amortized cost, Fair Value Through Other Comprehensive Income (“FVOCI”) or Fair Value Through Profit or Loss (“FVTPL”). A financial asset is measured at amortized cost if it meets both of the following conditions and is not designated as at FVTPL: · The asset is held within a business model in which the objective is to hold assets to collect contractual cash flows; and · The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. A debt instrument is measured at FVOCI only if it meets both of the following conditions and is not designated as at FVTPL: · The asset is held within a business model whose objective is achieved both by collecting contractual cash flows and selling financial assets; and · The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. On initial recognition of an equity investment that is not held for trading, Grupo Aval may irrevocably elect to present subsequent changes in fair value in Other Comprehensive Income (“OCI”). This election is made on an investment-by-investment basis. All other financial assets are classified as measured at FVTPL. Business model assessment Grupo Aval makes an assessment of the objective of a business model in which an asset is held at a portfolio level because this best reflects the way the business is managed, and information is provided to management. The information considered includes: · The established policies and objectives for the portfolio and their actual application. In particular, whether management’s strategy focuses on earning contractual interest revenue, maintaining a particular interest rate profile, matching the duration of the financial assets to the duration of the liabilities that are funding those assets or realizing cash flows through the sale of the assets; · How the performance of the portfolio is evaluated and reported to Grupo Aval’s management; · The risks that affect the performance of the business model (and the financial assets held within that business model) and how those risks are managed; and · The frequency, volume and timing of sales of financial assets in prior periods, the reasons for such sales and its expectations about future sale activity. However, information about sales activity is not considered in isolation, but as part of an overall assessment of how Grupo Aval’s stated objective for managing the financial assets is achieved and how cash flows are realized. Financial assets that are held for trading and which performance is evaluated on a fair value basis are measured at FVTPL because they are neither held to collect contractual cash flows nor held both to collect contractual cash flows and to sell financial assets. Assessment whether contractual cash flows are solely payments of principal and interest (SPPI) For the purposes of this assessment, ‘principal’ is defined as the fair value of the financial asset on initial recognition. ‘Interest’ is defined as consideration for the time value of money and for the credit risk associated with the principal amount outstanding during a particular period of time and for other basic lending risks and costs (e.g. liquidity risk and administrative costs), as well as profit margin. In assessing whether the contractual cash flows are solely payments of principal and interest, Grupo Aval considers the contractual terms of the instrument. This includes assessing whether the financial asset contains a contractual term that could change the timing or amount of contractual cash flows such that it would not meet this condition. In making the assessment, Group Aval considers: · Contingent events that would change the amount and timing of cash flows; · Leverage covenants; · Prepayment and extension terms; · Terms that limit Grupo Aval’s claim to cash flows from specified assets; and · Features that modify consideration of the time value of money. Interest rates on certain commercial and consumer loans originated by Grupo Aval are pegged to standard variable rates (SVRs) generally used in each country where Grupo Aval operates and includes a discretional spread. In Colombia, the SVRs are based on the DTF (the DTF rate is the weighted average interest rate paid by commercial banks, merchant banks and financing companies for certificates of deposit with maturities of 90 days) or the interbank rate (Interés Bancario de Referencia), or “IBR” rates which are calculated weekly by the Central Bank based on information collected from the Colombian financial system, plus a discretionary spread, and in the case of loans in foreign currency Grupo Aval uses Libor interest rates plus a discretionary spread. In these cases, Grupo Aval will assess whether the discretionary feature is consistent with the SPPI criteria by considering a number of factors, including whether: · Borrowers are able to prepay the loans without significant penalties, · Market competition ensures that interest rates are consistent between banks; and · Any regulatory or customer protection framework is in place that requires banks to treat customers fairly. A prepayment feature is consistent with the SPPI criterion if the prepayment amount substantially represents unpaid amounts of principal and interest on the principal amount outstanding, which may include reasonable compensation for early termination of the contract. In addition, a prepayment feature is treated as consistent with this criterion if a financial asset is acquired or originated at a premium or discount to its contractual par amount, and the prepayment amount substantially represents the contractual par amount plus accrued (but unpaid) contractual interest (which may also include reasonable compensation for early termination), and the fair value of the prepayment feature is insignificant upon initial recognition. Financial liabilities Grupo Aval classifies its financial liabilities, other than derivatives, financial guarantees and loan commitments, as measured at amortized cost. iii. Reclassifications Financial assets Financial assets are not reclassified subsequent to their initial recognition, except in the period after Grupo Aval’s entities changes their business model for managing financial assets. iv. Derecognition Financial assets Grupo Aval derecognizes a financial asset when the contractual rights to the cash flows from the financial asset expire (see also (v)), or it transfers the rights to receive the contractual cash flows in a transaction in which substantially all of the risks and rewards of ownership of the financial asset are transferred or in which Grupo Aval neither transfers nor retains substantially all of the risks and rewards of ownership and it does not retain control of the financial asset. On derecognition of a financial asset, the difference between the carrying amount of the asset (or the carrying amount allocated to the portion of the asset derecognized) and the sum of (i) the consideration received (including any new asset obtained less any new liability assumed) and (ii) any cumulative gain or loss that had been recognized in OCI is recognized in profit or loss. Any cumulative gain/loss recognized in OCI in respect of equity investment securities designated as at FVOCI is not recognized in profit or loss on derecognition of such securities, as explained in (2.10). Any interest in transferred financial assets that qualify for derecognition that is created or retained by Group Aval is recognized as a separate asset or liability. Grupo Aval enters into transactions whereby it transfers assets recognized on its statement of financial position but retains either all or substantially all of the risks and rewards of the transferred assets or a portion of them. In such cases, the transferred assets are not derecognized. Examples of such transactions are securities lending and sale-and-repurchase transactions. When assets are sold to a third party with a concurrent total rate of return swap on the transferred assets, the transaction is accounted for as a secured financing transaction similar to sale-and repurchase transactions, because Grupo Aval retains all or substantially all of the risks and rewards of ownership of such assets. In transactions in which Grupo Aval neither retains nor transfers substantially all of the risks and rewards of ownership of a financial asset and it retains control over the asset, Grupo Aval continues to recognize the asset to the extent of its continuing involvement, determined by the extent to which it is exposed to changes in the value of the transferred asset. In certain transactions, Grupo Aval retains the obligation to service the transferred financial asset for a fee. The transferred asset is derecognized if it meets the derecognition criteria. An asset or liability is recognized for the servicing contract if the servicing fee is more than adequate (asset) or is less than adequate (liability) for performing the servicing. Financial liabilities Grupo Aval derecognizes a financial liability when its contractual obligations are discharged or cancelled or expire. v. Modifications of financial assets and financial liabilities Financial assets If the terms of a financial asset are modified, then Grupo Aval assesses whether the cash flows of the modified asset are substantially different. If the cash flows are substantially different, then the contractual rights to cash flows from the original financial asset are deemed to have expired. In this case, the original financial asset is derecognized (see (iv)) and a new financial asset is recognized at fair value plus any eligible transaction costs. Any fees received as part of the modification are accounted for as follows: · Fees that are considered in determining the fair value of the new asset and fees that represent reimbursement of eligible transaction costs are included in the initial measurement of the asset; and · Other fees are included in profit or loss as part of the gain or loss on derecognition. If cash flows are modified when the borrower is in financial difficulties, then the objective of the modification is usually to maximize recovery of the original contractual terms rather than to originate a new asset with substantially different terms. If Group Aval plans to modify a financial asset in a way that would result in foregoing of cash flows, then it first considers whether a portion of the asset should be written off before the modification takes place (see below for write ‑ off policy). This approach impacts the result of the quantitative evaluation and means that the derecognition criteria are not usually met in such cases. If the modification of a financial asset measured at amortized cost or FVOCI does not result in derecognition of the financial asset, then Grupo Aval first recalculates the gross carrying amount of the financial asset using the original effective interest rate of the asset and recognizes the resulting adjustment as a recovery or impairment through in the Consolidated Statement of Income. For floating-rate financial assets, the original effective interest rate used to calculate the modification gain or loss is adjusted to reflect current market terms at the time of the modification. Any costs or fees incurred, and fees received as part of the modification adjust the gross carrying amount of the modified financial asset and are amortized over the remaining term of the modified financial asset. Financial liabilities Grupo Aval derecognizes a financial liability when its terms are modified, and the cash flows of the modified liability are substantially different. In this case, a new financial liability based on the modified terms is recognized at fair value. The difference between the carrying amount of the financial liability extinguished and the new financial liability with modified terms is recognized in the Consolidated Statement of Income. If the modification of a financial liability measured at amortized cost does not result in derecognition of the financial liability, then Grupo Aval first recalculates the gross carrying amount of the financial liability using the original effective interest rate of the liability and recognizes the resulting adjustment as interest expense through in the Consolidated Statement of Income. For floating-rate financial assets, the original effective interest rate used to calculate the modification gain or loss is adjusted to reflect current market terms at the time of the modification. Any costs or fees incurred, and fees received as part of the modification adjust the gross carrying amount of the modified financial liability and are amortized over the remaining term of the modified financial liability. vi. Offsetting Financial assets and liabilities are offset, and the net amount is recognized in the consolidated statement of financial position, when there is a legally enforceable right to offset recognized amounts and management intends to settle them on a net basis or to realize the asset and settle the liability simultaneously. Income and expenses are presented on a net basis only when permitted under IFRS, or for gains and losses arising from a group of similar transactions such as in Grupo Aval’s trading activity. vii. Fair value measurement ‘Fair value’ is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or, in its absence, the most advantageous market to which Grupo Aval has access at that date. When one is available, Grupo Aval measures the fair value of an instrument using the quoted price in an active market for that instrument. A market is regarded as active if transactions for the asset or liability take place with sufficient frequency and volume to provide pricing information on an ongoing basis. If there is no quoted price in

JUDGMENTS AND CRITICAL ACCOUNTI

JUDGMENTS AND CRITICAL ACCOUNTING ESTIMATES IN APPLYING ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2019
Disclosure Of Accounting Judgements And Estimates Explanatory [Abstract]
Disclosure of accounting judgements and estimates [text block]	NOTE 3 – JUDGMENTS AND CRITICAL ACCOUNTING ESTIMATES IN APPLYING ACCOUNTING POLICIES Grupo Aval’s management makes estimates and assumptions that affect the amounts recognized in the consolidated financial statements and the carrying value of the assets and liabilities within the fiscal year. The judgments and estimates are continuously evaluated and are based on the experience of management and other factors, including the occurrence of future events that are believed to be reasonable under the current circumstances. Management also makes certain judgments besides those which involve estimates during the process of applying accounting policies. The judgments that have the most significant effects on the amounts recognized in the consolidated financial statements and the estimates that may cause an important adjustment to the value in the carrying value of assets and liabilities in the following year include the following: A. Judgments Information about judgments made in applying accounting policies that have the most significant effects on the amounts recognized in the consolidated financial statements is included in the following notes. – Note 2 (2.5) (ii) – classification of financial assets: assessment of the business model within which the assets are held and assessment of whether the contractual terms of the financial asset are solely payments of principal and interest on the principal amount outstanding. – Note 2 (2.1) – determination of control over investees. – Note 4 (4.1.5) – establishing the criteria for determining whether credit risk on the financial asset has increased significantly since initial recognition, determining the methodology for incorporating forward-looking information into the measurement of ECL and selection and approval of models used to measure ECL. B. Assumptions and estimation uncertainties Information about assumptions and estimation uncertainties that have a significant risk of resulting in a material adjustment in the year ended is included in the following notes. – Note 4 (4.1.5) – impairment of financial instruments: assessment of whether credit risk on the financial asset has increased significantly since initial recognition and incorporation of forward-looking information in the measurement of ECL. – Note 16 – measurement and revenue recognition of concession arrangements. – Note 5 – determination of the fair value of financial instruments with significant unobservable inputs. – Note 22 – measurement of defined benefit obligations: key actuarial assumptions. – Note 19 – recognition of deferred tax assets: availability of future taxable profit against which carry-forward tax losses can be used. – Note 17 – impairment testing for CGUs containing goodwill: key assumptions underlying recoverable amounts. – Notes 23 – recognition and measurement of provisions and contingencies: key assumptions about the likelihood and magnitude of an outflow of resources. – Note 4 (4.1.5) – impairment of financial instruments: key assumptions used in estimating recoverable cash flows.

RISK MANAGEMENT

RISK MANAGEMENT	12 Months Ended
	Dec. 31, 2019
Disclosure of risk management [abstract]
Disclosure of risk management [text block]	NOTE 4 – RISK MANAGEMENT Grupo Aval and its subsidiaries in the financial sector, Banco de Bogotá, Banco de Occidente, Banco AV Villas, Banco Popular and Corficolombiana manage risk pursuant to the applicable regulations in each country where they operate and according to Grupo Aval’s internal policies. The risk framework requires that strong risk management practices are integrated in key strategic, capital and financial planning processes and day-to-day business processes across Grupo Aval, with a goal of ensuring risks are appropriately considered, evaluated and responded to in a timely manner. Grupo Aval employs a risk management process, referred to as identify, measure, monitor and control, as part of the daily activities, among all the risks Grupo Aval manages. Lines of Defense: in addition to the role of Executive Officers in managing risk, management has had clear ownership and accountability across the three lines of defense: 1) First Line of defense: Business Units, 2) Second Line of defense: mainly concentrated in the Independent Risk Management departments and 3) Third line of defense: Corporate Audit. · Business Units: include the business lines as well as the Technology and Operations areas which are responsible for appropriately assessing and effectively managing all of the risks associated with their processes. · Independent Risk Management Units: risk management areas include risk management and compliance departments. Grupo Aval has other control functions that are not part of these areas but are key in the risk mitigation of non-financial risks, including legal, human resources and certain activities within the Financial and Administrative processes. · Corporate Audit: corporate audit maintain its independence from the first and second lines of defense by reporting directly to the Audit Committee or the Board. Corporate Audit provides independent assessment and validation through testing of key processes and controls across Grupo Aval. The following sections outline the key risks that are inherent in business activities of the subsidiaries in the financial sector: A) Financial risks i) Credit risk: the risk of financial loss if a debtor fails to meet its contractual obligations. ii) Market risk: the risk of loss arising from potential adverse changes in the value of the subsidiaries in the financial sector assets and liabilities or future results, resulting from changes in market variables such as interest rates, foreign exchange rates, equity prices, commodity prices, implied volatilities or credit spreads; this includes the structural interest rate and foreign exchange risks. iii) Liquidity risk: the risk of being unable to meet contractual and contingent obligations or that the subsidiaries in the financial sector do not have the appropriate amount, composition and tenor of funding and liquidity to support the financial assets and liabilities requirements (funding liquidity risk). Also includes the capability to manage its investment portfolio in terms of liquidity, duration and currency (market liquidity risk). iv) Interest rate risk: it is the current or potential risk to equity and profits of a financial subsidiary that arise from adverse movements in interest rates, which affect the positions of the banking book. v) Capital risk: the risk that any of the subsidiaries in the financial sector have an insufficient level and composition of capital to support its business activities and associated risks during both normal economic environments and under stressed conditions. Risk related to the management of capital requirements and adequacy. Grupo Aval’s subsidiaries in the financial sector have ALCO/ALM committees in order to establish risks policies, limits and systems to measure, monitor and control the funds transfer pricing curve, interest rate risk in banking book and liquidity risk management. Objective and general guidelines of risk management Grupo Aval’s and its subsidiaries of the financial sector objective is to maximize returns for its investors, through proper risk management. The guiding principles of risk management at Grupo Aval are as follows: a) Make risk management a part of every institutional process. b) Collective decision making for commercial lending of significant amounts. c) Extensive and in-depth industry and market knowledge, as a result of the leadership and experienced, stable and seasoned senior management. d) Clear risk management policies based on a top-down approach with respect to: · Compliance with know-your-customer policies. · Commercial loans credit structure based on a clear identification of sources of repayment and of cash flow generation capacity of the borrower. e) Use of common credit analysis tools for analysis and loan pricing tools across Grupo Aval’s subsidiaries of financial sector. f) Diversification of the commercial loan portfolio with respect to industries and economic groups. g) Specialization in consumer product niches. h) Extensive use of continuously updated scoring models and credit ratings updated permanently to ensure quality growth of consumer loans with high credit quality. i) Conservative policies in terms of: · trading portfolio composition with bias towards lower volatility instruments, · proprietary trading position, and · the variable compensation for the trading staff. j) k) l) m) Main premises for risk management Grupo Aval´s risk culture is based on the principles indicated in the section above and they are transmitted to all subsidiaries of the financial sector and business units. The strategy related with risk management is supported by the following guidelines: a) In all of Grupo Aval´s subsidiaries of the financial sector, the risk function is independent of the business units. The segregation of functions between the business areas and the risk areas in charge of risk measurement analysis, control and reporting, provide sufficient independence and autonomy for proper risk control. b) The decision-making process at the subsidiaries of the financial sector requires that transactions of significant amounts are sent to decision centers such as risk committees. The frequency of meetings of these committees ensures a high degree of agility regarding the resolution of proposals and continuous participation of senior management for management the different risks. c) Grupo Aval has corporate policies for the risk to which it is exposed. The business and risk units of Grupo Aval and its subsidiaries of the financial sector hold orientation meetings based on approaches to risk that are consistent with Grupo Aval´s risk culture. d) Grupo Aval has implemented a risk system that is updated on a regular basis to address new conditions in the markets and the risks to which Grupo Aval is exposed. e) There are adequate information systems to monitor risk exposure, to ensure compliance and approval policies and, if necessary, to implement proper corrective actions. f) Key risks are analyzed on a regular basis, not only when risks materialize or when problems occur during the normal course of business but in a continuous process of risk management. g) Grupo Aval and its subsidiaries of the financial sector have training courses on risk culture for all hierarchy levels in the organization. h) A risk culture integrated throughout the organization, consisting on a series of attitudes, values, skills and guidelines to action. Corporate structure of the risk function Governance of the risk function seeks to ensure that risk decisions are made appropriately and efficiently and that risks are effectively controlled. The goal is to guarantee that risks are managed in accordance with the guidelines set forth by Grupo Aval. The corporate structure for risk management at the subsidiaries of the financial sector is comprised of the following, top-level risk governance bodies: · Board of Directors · Risk Management committees · Risks Management units · Administrative process of risk management · Internal Audit Departments Responsibility for the control and management of risks rests ultimately on Financial Subsidiaries Board of Directors. The Board has the power to delegate the various committees and it is supported by risk management committees at the subsidiaries of the financial sector.
Disclosure of risk management, credit risk [text block]	Financial Risk Review 4.1 Credit Risk 4.1.1 Consolidated Credit Risk Exposure Grupo Aval´s subsidiaries are exposed to credit risk, consisting of the risk of financial loss as a result of the failure of the debtor to meet its contractual obligations in financial transactions on a timely and complete manner. Exposure to credit risk for Grupo Aval and its subsidiaries is a result of credit activities and transactions with counterparties. The maximum exposure to credit risk of Grupo Aval, at a consolidated level is reflected in the carrying value of financial assets in the statement of financial position of Grupo Aval as of December 31, 2019 and 2018 as follows: Account Assets December 31, 2019 December 31, 2018 Cash and cash equivalents (**) Ps. 23,464,691 Ps. 21,955,901 Debt securities held for trading 4,673,113 3,762,978 Debt securities mandatorily FVTPL 10,102 31,256 Debt securities FVOCI 21,608,992 18,935,757 Debt securities at amortized cost 3,053,862 2,972,616 Derivatives instruments 917,434 768,686 Hedging derivatives 166,598 30,138 Loans Commercial 101,655,660 102,408,977 Consumer 59,840,451 55,455,064 Mortgage 20,221,683 18,592,103 Microcredit 410,320 425,697 Other accounts receivable FVTPL 2,706,030 2,488,414 Other accounts receivable at amortized cost 9,282,734 7,069,120 Total financial assets with credit risk Ps. 248,011,670 Ps. 234,896,707 Financial instruments with credit risk outside of the statement of financial position at its nominal value Financial guarantees and letters of credit 3,341,641 3,446,601 Credit commitments 28,812,963 27,479,080 Total exposure to credit risk outside of the statement of financial position Ps. 32,154,604 Ps. 30,925,681 Total maximum exposure to credit risk Ps. 280,166,274 Ps. 265,822,388 (**) Not including funds in the entity’s custody (cash, tellers, vaults), because there is no credit risk regarding Grupo Aval entities. With regards to guarantees and commitments to extend the credit amounts, the maximum credit risk exposure is the amount of the commitment. Credit risk is mitigated by guarantees and collaterals as described in note 4.1.4 Mitigation of Credit Risk, Collateral and Other Credit Risk Enhancements. Each of Grupo Aval´s financial subsidiaries assume the credit risk for both the credit activity itself, which includes commercial, consumer, mortgage and microcredit credit lending and treasury activities, including interbank loans, investment portfolio management, derivatives and foreign currency trading activities, among others. Despite being independent businesses, the nature of insolvency risk of the borrower or counterparty is similar and therefore the criteria in which they are evaluated is similar. Loans are recorded at amortized cost on the statement of financial position and are classified as commercial, consumer, mortgages, and microcredit. Due to the significance of the financial leasing portfolio for Grupo Aval, these amounts are also presented separately in all the tables for disclosure purposes: December 31, 2019 Balance in Statement Leasing presentation Balance according to Portfolio segment of financial position adjustment disclosure Commercial Ps. 101,655,660 Ps. (10,348,941) Ps. 91,306,719 Consumer 59,840,451 (252,522) 59,587,929 Residential mortgage 20,221,683 (1,560,294) 18,661,389 Microcredit 410,320 — 410,320 Financial leasing — 12,161,757 12,161,757 Total portfolio Ps. 182,128,114 Ps. — Ps. 182,128,114 December 31, 2018 Balance in Statement Leasing presentation Balance according to Portfolio segment of financial position adjustment disclosure Commercial Ps. 102,408,977 Ps. (9,858,952) Ps. 92,550,025 Consumer 55,455,064 (254,483) 55,200,581 Residential mortgage 18,592,103 (1,312,741) 17,279,362 Microcredit 425,697 — 425,697 Financial leasing — 11,426,176 11,426,176 Total portfolio Ps. 176,881,841 Ps. — Ps. 176,881,841 4.1.2 Loan and Counterparty Approval Process for subsidiaries in the financial sector The principles and rules for credit management and credit risk for each financial subsidiary are contained in the credit manual, both for commercial banking activities and treasury activities. Evaluation criteria to measure credit risk follows the principal instructions set forth by the Treasury and Credit Risk Committees. The maximum authority regarding lending is the Board of Directors for each bank, which approves the general policy and has the capacity to approve large size transactions. In the normal banking operation, authorizations for approval of loans and lines of credit depend on the amounts, credit quality, tenor and security collateral or guarantees offered by the client. The Board of Directors of each bank has delegated part of its lending authorities to different committees and executives who process the credit requests and are responsible for the analysis and follow-up. Additionally, for the approval of credits, certain considerations are taken into account including but not limited to, the probability of default and the recovery percentage of guarantees received, tenor and concentration by economic sector. Regarding the operations for treasury activities, the Board of Directors of the financial subsidiaries, approves the lines of credit for counterparties. Risk control is essentially carried out through three mechanisms: annual approval of lines of credit, semiannual solvency evaluations for issuers and a report on concentrations for each client or economic group. Although each financial subsidiary is responsible for its credit decisions and risk management, Grupo Aval as a holding, through the Corporate Risk Unit oversees the implementation of appropriate risk management controls at the financial subsidiaries and has established upward loan reporting processes. The holding’s risk management staff meets on a weekly basis to discuss the subsidiaries’ loan portfolio, developments in industry, risks and opportunities. Grupo Aval also coordinates loan syndication among its banks to effectively leverage the combined equity of its banks and manage any risk issues. Each subsidiary of the financial sector has a Credit Risk Management System, which is managed by the credit vice-presidency or its equivalent, and includes, among others, the design, implementation and evaluation of policies and risk mechanisms defined by the Credit and Treasury Risk Committee and the Board of Directors. The operation of the Credit Risk Management System has resulted in the integration of risk measurement tools into the credit approval process in each of the financial subsidiaries. Each subsidiary of the financial sector has two models for evaluating credit risk for the approval of commercial loans: the financial ratings model, statistical models based on financial information of the client, which are used in the approval process and for the management and follow-up of the portfolio. The second model is based on the client´s financial ratings and its historical payment behavior with the bank, used in the process of client rating. For retail loans (including mortgage loans and auto loans) models are based on sociodemographic variables and the historical payment behavior of the clients. 4.1.3 Credit quality analysis The Credit-risk Monitoring Process and Credit rating of the loan portfolio The monitoring process and follow-up of credit risk of each financial subsidiary is carried out in several steps including portfolio analysis by vintages, risk level rating, permanent follow-up of high risk clients, restructuring processes of operations and the receipt of foreclosed assets as payment. On a monthly basis the financial subsidiaries classify each client in one of these categories: Category A-Normal, B‑Subnormal, C-Deficient, D-Doubtful recovery and E- Unrecoverable, based on the statistical models that each subsidiary has. On a quarterly basis each financial subsidiary evaluates the commercial portfolio by economic sectors, where macro-sectors are evaluated with the purpose of monitoring the concentration per economic sector and the risk level of each one. Every six-months each financial subsidiary carries out an individual analysis of the credit risk based on updated financial information of the client, payment record, collateral security/guarantees received, credit bureau reports and other qualitative information available; based on the information, clients are classified by risk level as mentioned above. Each of the risk categories is explained as follows: Category 1 (0% >= PD * <=7.5%) — “Normal risk”: Loans and finance leases in this category are appropriately serviced. The debtor’s financial statements or its projected cash flows, as well as all other credit information available to us, reflect adequate paying capacity. Category 2-3 (7.5% > PD <=15% - 15% > PD <=22.5%) — “Acceptable risk, above normal”: Loans and finance leases in this category are adequately serviced and protected. But there are weaknesses which may potentially affect, on a transitory or permanent basis, the debtor’s paying capacity or its projected cash flows, to the extent that, if not timely corrected, would affect the collection of the credits as contracted. Category 4-5 (22.5% > PD <=30% - 30% > PD <=45%) — “Appreciable risk”: Loans and finance leases in this category have debtors with insufficient paying capacity or relate to projects with insufficient cash flow, which may compromise the normal collection of the obligations. Category 6-7 (45% > PD <=60% - 60% > PD <=90%)— “Significant risk”: Loans and finance leases in this category have the same deficiencies as loans in category 4-5, but to a larger extent; consequently, the probability of collection is highly doubtful. (*) Probability of default – “PD” is the probability that the counterpart defaults in its payment obligations of capital and/or interest. Category 8 (PD > 90%) — “Risk of non-recoverability”: Loans and finance leases in this category are deemed uncollectible. For mortgage loans and microcredits, the previous classification by risk levels is carried out monthly considering the number of days past due. In addition, the credit risk exposure is managed through a periodic analysis of the borrowers (or potential borrowers) to determine the repayment capacity of capital and interest. The credit risk exposure is also mitigated partly by obtaining collateral security, corporate and personal guarantees. The following table sets out information about the credit quality of financial assets measured at amortized cost. Unless specifically indicated, for financial assets, the amounts in the table represent gross carrying amounts. For loan commitments and financial guarantee contracts, the amounts in the table represent the amounts committed or guaranteed, respectively. Based on the foregoing classifications, each financial subsidiary establishes and executes collection strategies directed at maximizing the collection of the loan portfolio. As of December 31, 2019, and 2018, the following is a summary of the Commercial December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 82,094,981 Ps. 310,595 Ps. - Ps. 82,405,576 7.5% - 15% 855,476 368,086 - 1,223,562 15% - 22.5% 44,548 178,046 - 222,594 22.5% - 30% 45,596 86,323 - 131,919 30% - 45% 30,026 928,098 - 958,124 45% - 60% 1,437 471,156 - 472,593 60% - 90% 1,495 47,979 - 49,474 > 90% 1,573 1,976 5,839,328 5,842,877 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 83,210,772 Ps. 243,089 Ps. - Ps. 83,453,861 7.5% - 15% 865,784 172,278 - 1,038,062 15% - 22.5% 52,906 180,853 - 233,759 22.5% - 30% 47,739 130,769 - 178,508 30% - 45% 20,889 665,253 - 686,142 45% - 60% 2,448 234,853 - 237,301 60% - 90% 1,117 27,679 67,162 95,958 > 90% 16,814 8,838 6,600,782 6,626,434 TOTAL Ps. Ps. Ps. Ps. Consumer December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 45,471,761 Ps. 541,845 Ps. - Ps. 46,013,606 7.5% - 15% 6,436,998 311,027 - 6,748,025 15% - 22.5% 469,685 317,644 - 787,329 22.5% - 30% 138,510 334,167 - 472,677 30% - 45% 378,371 649,855 - 1,028,226 45% - 60% 3,457 603,034 146,626 753,117 60% - 90% 422,442 1,065,686 210,585 1,698,713 > 90% 104 70,290 2,015,842 2,086,236 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 42,839,139 Ps. 555,398 Ps. - Ps. 43,394,537 7.5% - 15% 4,692,330 452,823 - 5,145,153 15% - 22.5% 815,373 456,525 - 1,271,898 22.5% - 30% 179,065 392,878 - 571,943 30% - 45% 91,846 946,658 61,075 1,099,579 45% - 60% 4,378 521,213 91,089 616,680 60% - 90% 2,587 964,704 177,569 1,144,860 > 90% 455 76,265 1,879,211 1,955,931 TOTAL Ps. Ps. Ps. Ps. Mortgage December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 16,666,766 Ps. 155,866 Ps. - Ps. 16,822,632 7.5% - 15% 116,157 183,028 - 299,185 15% - 22.5% 16,035 234,666 - 250,701 22.5% - 30% 4,187 162,339 - 166,526 30% - 45% 8,606 254,878 - 263,484 45% - 60% 171 184,340 - 184,511 60% - 90% 65 120,355 - 120,420 > 90% 13 3,687 550,230 553,930 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 15,521,416 Ps. 202,634 Ps. - Ps. 15,724,050 7.5% - 15% 32,076 201,068 - 233,144 15% - 22.5% 6,950 193,391 - 200,341 22.5% - 30% 1,941 143,322 - 145,263 30% - 45% 1,710 272,141 - 273,851 45% - 60% 121 175,454 - 175,575 60% - 90% 150 138,147 - 138,297 > 90% 1,694 9,584 377,563 388,841 TOTAL Ps. Ps. Ps. Ps. Microcredit December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 123,733 Ps. 17 Ps. - Ps. 123,750 7.5% - 15% 142,921 34 - 142,955 15% - 22.5% 29,829 - - 29,829 22.5% - 30% 4,174 704 - 4,878 30% - 45% 20,263 570 - 20,833 45% - 60% 8,666 941 - 9,607 60% - 90% 336 22,535 - 22,871 > 90% - - 55,597 55,597 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 212,882 Ps. 23 Ps. - Ps. 212,905 7.5% - 15% 68,503 65 - 68,568 15% - 22.5% 35,880 139 - 36,019 22.5% - 30% 10 828 - 838 30% - 45% 19,413 947 - 20,360 45% - 60% 7,737 911 - 8,648 60% - 90% 297 22,447 - 22,744 > 90% - 14 55,601 55,615 TOTAL Ps. Ps. Ps. Ps. Financial Leasing December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 10,516,783 Ps. 97,462 Ps. - Ps. 10,614,245 7.5% - 15% 149,809 82,300 - 232,109 15% - 22.5% 1,177 51,329 - 52,506 22.5% - 30% 16 31,619 - 31,635 30% - 45% 297 115,423 - 115,720 45% - 60% 72 62,957 - 63,029 60% - 90% 152 4,062 - 4,214 > 90% - 1,888 1,046,411 1,048,299 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 9,977,306 Ps. 55,600 Ps. - Ps. 10,032,906 7.5% - 15% 135,444 51,838 - 187,282 15% - 22.5% 4,802 32,186 - 36,988 22.5% - 30% 10,000 14,297 - 24,297 30% - 45% 1,446 137,667 - 139,113 45% - 60% 2,590 30,542 - 33,132 60% - 90% 459 7,634 1,413 9,506 > 90% 323 182 962,447 962,952 TOTAL Ps. Ps. Ps. Ps. Credit quality of financial assets (excluding loan portfolio) The following is the breakdown of the different financial assets excluding loan portfolio, by credit risk level and type of issuer based on the rating issued by the independent credit rating agency. A financial asset is considered investment grade if its credit rating is BBB- or higher by Standard & Poor's or Fitch Ratings scale, Baa3 or higher by Moody's scale, F3 or higher by Fitch Ratings Colombia S.A or BRC3 or higher by BRC of Colombia. Otherwise, the financial asset is considered speculative . a) December 31, 2019 December 31, 2018 Investment grade Sovereign (*) Ps. 2,428,981 Ps. 2,270,642 Other public entities (**) 175,793 128,546 Corporate 61,001 30,207 Financial entities 1,370,232 1,101,157 Total investment grade Ps. 4,036,007 Ps. 3,530,552 Speculative grade Sovereign (*) Ps. 136,314 Ps. 98,155 Central banks 13,966 12,914 Corporate 4,084 — Financial entities 480,189 117,594 Total Speculative grade Ps. 634,553 Ps. 228,663 Without grade or not available Corporate Ps. 2,553 Ps. 3,763 Total without grade or not available Ps. 2,553 Ps. 3,763 Ps. 4,673,113 Ps. 3,762,978 (*) A sovereign credit rating considers the risk of Treasury issuer or similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general including regional and local governments. b) Investments in debt securities mandatorily at FVTPL December 31, 2019 December 31, 2018 Investment grade Corporate 10,102 31,256 Total investment grade Ps. 10,102 Ps. 31,256 c) December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 12,590,020 Ps. — Ps. — Ps. 12,590,020 Other public entities (**) 465,677 — — 465,677 Corporate 228,447 — — 228,447 Financial entities 2,504,060 — — 2,504,060 Multilaterals 96,171 — — 96,171 Total investment grade Ps. 15,884,375 Ps. — Ps. — Ps. 15,884,375 Speculative grade Sovereign (*) Ps. 4,051,354 Ps. — Ps. — Ps. 4,051,354 Central banks 970,095 — — 970,095 Corporate 152,303 — — 152,303 Financial entities 550,865 — — 550,865 Total speculative grade Ps. 5,724,617 Ps. — Ps. — Ps. 5,724,617 Ps. 21,608,992 Ps. — Ps. — Ps. 21,608,992 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 11,492,538 Ps. — Ps. — Ps. 11,492,538 Other public entities (**) 497,634 — — 497,634 Corporate 135,985 — — 135,985 Financial entities 2,732,127 — — 2,732,127 Multilaterals 118,657 — — 118,657 Total investment grade Ps. 14,976,941 Ps. — Ps. — Ps. 14,976,941 Speculative grade Sovereign (*) Ps. 1,994,205 Ps. 54,587 Ps. — Ps. 2,048,792 Central banks 1,066,822 64,918 — 1,131,740 Corporate 61,485 132,817 — 194,302 Financial entities 375,352 201,002 — 576,354 Total speculative grade Ps. 3,497,864 Ps. 453,324 Ps. — Ps. 3,951,188 Default Corporate Ps. — Ps. — Ps. 7,628 Ps. 7,628 Total default Ps. — Ps. — Ps. 7,628 Ps. 7,628 Ps. 18,474,805 Ps. 453,324 Ps. 7,628 Ps. 18,935,757 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). d) December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 23,043 Ps. — Ps. — Ps. 23,043 Other public entities (**) 3,029,802 — — 3,029,802 Financial entities 1,017 — — 1,017 Total investment grade Ps. 3,053,862 Ps. — Ps. — Ps. 3,053,862 Ps. 3,053,862 Ps. — Ps. — Ps. 3,053,862 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 32,321 Ps. — Ps. — Ps. 32,321 Other public entities (**) 2,931,172 — — 2,931,172 Financial entities 9,123 — — 9,123 Total investment grade Ps. 2,972,616 Ps. — Ps. — Ps. 2,972,616 Ps. 2,972,616 Ps. — Ps. — Ps. 2,972,616 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). e) December 31, 2019 December 31, 2018 Investment grade Sovereign (*) Ps. 2,706,030 Ps. 2,488,414 Total investment grade Ps. 2,706,030 Ps. 2,488,414 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). f) December 31, 2019 Stage 1 Stage 2 Stage 3 Simplified Approach Total Other receivables using general approach Other accounts receivables and contract assets for corporate customers Ps. 4,719,510 Ps. — Ps. — Ps. — Ps. 4,719,510 Other accounts receivables related to gas, energy services, contributions and others 830,995 132,474 113,503 — 1,076,972 Other receivables using simplified approach Other accounts receivables from individual customers — — — 3,486,252 3,486,252 Total other receivables Ps. 5,550,505 Ps. 132,474 Ps. 113,503 Ps. 3,486,252 Ps. 9,282,734 December 31, 2018 Stage 1 Stage 2 Stage 3 Simplified Approach Total Other receivables using general approach Other accounts receivables and contract assets for corporate customers Ps. 2,971,500 Ps. — Ps. — Ps. — Ps. 2,971,500 Other accounts receivables related to gas, energy services, contributions and others 395,849 138,082 175,847 — 709,778 Other receivables using simplified approach Other accounts receivables from individual customers — — — 3,387,842 3,387,842 Total other receivables Ps. 3,367,349 Ps. 138,082 Ps. 175,847 Ps. 3,387,842 Ps. 7,069,120 Evaluated using general approach The following table provides information about the exposure to credit risk and ECLs for other accounts receivable and contract assets for corporate customers as of December 31, 2019 and 2018. The credit quality of these financial assets follows the methodology of the probability of default of Debt securities and other liquid financial assets (See note 4.1.5). December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 4,328,028 Ps. — Ps. — Ps. 4,328,028 Financial entities 391,482 — — 391,482 Total investment grade Ps. 4,719,510 Ps. — Ps. — Ps. 4,719,510 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 2,631,235 Ps. — Ps. — Ps. 2,631,235 Financial entities 340,265 — — 340,265 Total investment grade Ps. 2,971,500 Ps. — Ps. — Ps. 2,971,500 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). The following table provides information about the exposure to credit risk and ECLs by segment for accounts receivable related to gas and energy services, the methodology used to estimate the ECLs is the same used for Loan and Receivable (See note 4.1.5): December 31, 2019 Stage 1 Stage 2 Stage 3 Total Segmentation Contributions Ps. 99,852 Ps. — Ps. — Ps. 99,852 Gas 459,012 128,455 46,166 633,633 Energy 62,662 4,019 67,337 134,018 Other accounts receivable 209,469 — — 209,469 Total segmentation Ps. 830,995 Ps. 132,474 Ps. 113,503 Ps. 1,076,972 December 31, 2018 Stage 1 Stage 2 Stage 3 Total Segmentation Contributions Ps. 71,903 Ps. — Ps. — Ps. 71,903 Gas 232,445 134,519 77,693 444,657 Energy 37,455 3,563 98,154 139,172 Other accounts receivable 54,046 — — 54,046 Total segmentation Ps. 395,849 Ps. 138,082 Ps. 175,847 Ps. 709,778 Evaluated using simplified approach Grupo Aval uses a probability matrix to measure the ECL for other receivables from individual customers, which have small balances. The weighted-average loss rate is calculated using a “rolling rate” method based on the probability that a receivable will progress through successive stages of default until write off. The rolling rate is calculated for exposures in different segments and separately in accordance with the following common features of credit risk. The following table provides information about the exposure to credit risk and ECLs for trade receivables and contract assets from individual customers as of December 31, 2019 and 2018. Weighted- Gross average loss carrying Loss Credit- December 31, 2019 rate amount allowance impaired 0–30 days past due 1.05 % 2,275,266 23,892 — 31–60 days past due 1.70 % 810,364 13,788 — 61–90 days past due 11.05 % 72,920 8,061 — More than 90 days past due 65.50 % 327,702 214,660 327,702 Ps. 3,486,252 Ps. 260,401 Weighted- Gross average loss carrying Loss Credit- December 31, 2018 rate amount allowance impaired 0–30 days past due 1.15 % 2,846,086 32,622 — 31–60 days past due 6.70 % 111,636 7,485 — 61–90 days past due 9.39 % 31,625 2,970 — More than 90 days past due 47.32 % 398,495 188,583 398,495 Ps. 3,387,842 Ps. 231,660 The loss rates are based on the experience of real credit loss in the last seven years. These rates are multiplied by factors to reflect the differences between the economic conditions during the period in which the historical data were collected, the current conditions and the opinion of the entities of Grupo Aval about the economic conditions during the expected lives of the accounts receivable. g) The details of credit rating determined by independent credit rating agents of counterparties in trading derivative and hedge derivatives are as follows. Credit worthiness December 31, 2019 December 31, 2018 Investment grade Ps. 734,959 Ps. 755,218 Speculative 21,037 9,926 Without grade or not available 328,036 33,680 Total Ps. 1,084,032 Ps. 798,824 The following table shows an analysis of counterparty credit exposures that arise from derivative transactions. Transactions derived from the Group are generally fully guaranteed with cash: Trading derivatives Total Central counterparties Notional Fair Notional Fair amount value amount value 2019 Derivative assets 38,957,370 917,434 4,720,381 — Derivative liabilities 40,549,648 962,438 5,315,421 52 2018 Derivative assets 34,950,958 768,686 5,997,311 — Derivative liabilities 31,237,110 811,305 1,977,284 32 Hedging derivatives Total Central counterparties Notional Fair Notional Fair amount value amount value 2019 Derivative assets 7,322,445 166,598 3,252,561 — Derivative liabilities 6,211,399 94,298 3,318,104 — 2018 Derivative assets 2,493,849 30,138 1,280,402 — Derivative liabilities 8,722,602 195,539 4,601,646 — Derivative transactions of Grupo Aval are collateralized by cash of Ps.(38,618) as of December 31, 2019, and of Ps. 214,379 as of December 31, 2018, see note 4.1.10 “Offset of financial assets and financial liabilities”. h) The Group held cash and cash equivalents of 30 ,117,236 as of December 31, 2019 (2018: 28,401,283). The cash and cash equivalents are held in central banks and financial institution counterparties. The following table shows an analysis of counterparty credit exposures: December 31, 2019 December 31, 2018 Investment grade Ps. 15,110,595 Ps. 13,988,666 Central bank 4,755,515 3,794,411 Financial entities 10,353,061 10,194,255 Others 2,019 — Speculative grade 7,904,760 7,707,990 Central bank 7,714,111 7,264,128 Financial entities 190,649 443,862 Without grade or not available 449,336 259,245 Central bank — 2,338 Financial entities 333,864 256,907 Others 115,472 — Cash and cash equivalent with third parties Ps. 23,464,691 Ps. 21,955,901 Cash held by entity (**) 6,652,545 6,445,382 Total Ps. 30,117,236 Ps. 28,401,283 (**) Cash held by each Grupo Aval’s bank in custody in vaults, ATMs and cash. 4.1.4 Mitigation of Credit Risk, Collateral and Other Credit Risk Enhancements The exposure to credit risk for each of Grupo Aval´s financial subsidiaries is reduced by collateral and other credit enhancements. The existence of collateral security or guarantees can be a necessary measure but not a determinant one for the approval of a credit. Credit risk policies of Grupo Aval require an evaluation of the debtor’s payment capacity based on the debtor´s ability to generate the resources needed for the timely and complete payment of its obligations. Credit risk management includes the following activities: · Analysis of credit risk: For commercial lending, tools are used for the individual evaluation of credits based on payment capacity supported on cash generation, credit rating models with inputs from historical and projected financial condition, and on the payment history of the debtor with the financial sector. For consumer lending (including mortgages and auto financing), scoring models are based on socio-demographic variables and payment history. · Evaluation of collateral security / guarantees with appropriate debt coverage in accordance with the credit policies of each financial subsidiary. Collateral security includes mortgages on real estate, pledge on assets, cash deposits and investments. · Evaluation of the liquidity of the collateral security / guarantees received. The methods used for the evaluation of collateral security / guarantees are aligned with the market practices and include the use of independent real estate appraisers or the market value of securities. All collateral security / guarantees must be legally evaluated and drafted following the parameters of applicable legal regulations. Residential mortgage lending The following tables stratify credit exposures for mortgage loans and advances to retail customers by ranges of loan-to-value (LTV) ratio. LTV is calculated as the ratio of the gross amount of the loan – or the amount of the loan commitments – to the value of the collateral. The value of the collateral for residential mortgage loans is based on the collateral value at origination updated based on changes in house price indices. For credit-impaired loans the value of collateral is based on the most recent appraisals. December 31, 2019 December 31, 2018 LTV ratio Less than 50% Ps. 7,030,135 Ps. 6,414,097 51 – 70% 7,050,550 6,678,883 71 – 90% 5,189,800 4,890,501 91 – 100% 731,266 426,810 More than 100% 219,932 181,812 Total (*) Ps. 20,221,683 Ps. 18,592,103 (*) As of December 31, 2019 mortgage portfolio is made up for mortgage Ps. 18,661,389 and financial leases Ps.1,560,294. As of December 31, 2018 mortgage portfolio is made up of mortgages of Ps.17,279,362 and financial leases of Ps. 1,312,741. Credit-impaired mortgage loans December 31, 2019 December 31, 2018 LTV ratio Less than 50% Ps. 136,197 Ps. 99,462 51 – 70% 197,183 146,568 More than 70% 264,998 177,821 Total Ps. 598,378 Ps. 423,851 As of December 31, 2019, and 2018, the following chart shows the detail of the credit portfolio per type of guarantees received as support of credits granted by Grupo Aval at a consolidated level: Finance December 31, 2019 Commercial Consumer Mortgages Microcredit Leases (1) Total Unsecured credits Ps. Ps. Ps. 5,936 Ps. Ps. 54,217 Ps. Loans secured by other banks 321,672 6,082 — — — 327,754 Collateralized credits: Mortgages 713,912 80,308 2,335 18,854 19,393,695 Other real estate 1,430,605 3,495 422 118,256 18,290,852 Investments in equity instruments 262,663 1,180 — — — 263,843 Deposits in cash or cash equivalents 1,251,884 154,016 — — — 1,405,900 Leased machineries and vehicles — — — — 10,051,776 Fiduciary agreements, standby letters and guarantee funds 10,063,264 42,865 72,711 92,874 123,494 10,395,208 Pledged income 4,255,779 703 — — 5,728 4,262,210 Pledges 4,537,778 5,584,600 862 565 4,468 10,128,273 Other assets 2,893,890 52,060 99 22,644 1,784,964 4,753,657 Total gross loan portfolio Ps. Ps. Ps. Ps. Ps. Ps. Finance December 31, 2018 Commercial Consumer Mortgages Microcredit Leases (1) Total Unsecured credits Ps. 49,721,150 Ps. Ps. 3,572 Ps. Ps. 44,221 Ps. 97,363,628 Loans secured by other banks 362,128 7,378 — — 6,102 375,608 Collateralized credits: Mortgages 506,687 68,191 4,040 4,644 17,784,007 Other real estate 15,943,414 1,428,950 4,432 542 116,884 17,494,222 Investments in equity instruments 502,408 553 — — — 502,961 Deposits in cash or cash equivalents 1,147,457 156,229 — — — 1,303,686 Leased machineries and vehicles — — — — 9,221,950 9,221,950 Fiduciary agreements, standby letters and guarantee funds 9,316,479 38,516 70,174 97,946 361,515 9,884,630 Pledged income 3,262,967 303 — — 10,397 3,273,667 Pledges 3,316,543 5,773,201 477 668 6,379 9,097,268 Other assets 8,470,792 422,093 262 32,983 1,654,084 10,580,214 Total gross loan portfolio Ps. 92,550,025 Ps. Ps. Ps. Ps. Ps. 176,881,841 (1) See Note 4.1.1 As of December 31, 2019, and 2018, the following chart sets out the carrying amount and the value of identifiable collateral (mainly commercial property) for commercial loans held by Grupo Aval at a consolidated level: December 31, 2019 December 31, 2018 Carrying Amount Collateral Carrying Amount Collateral Stages 1 and 2 Ps. 20,203,110 Ps. Ps. Ps. Stage 3 1,659,725 1,543,378 1,225,001 1,058,671 Ps. Ps. 20,916,299 Ps. 19,358,216 Ps. 18,737,884 4.1.5 Amounts arising from Expected Credit Loss (ECL) Definition of Default Grupo Aval considers a financial asset to be in default when: · The borrower is unlikely to pay its credit obligations to Grupo Aval in full. Without prejudice, Grupo Aval takes actions such as realizing collateral (if any is held); · The borrower is more than 90 days past due on any material credit obligation other than mortgages to Grupo Aval. Overdrafts are considered pa
Disclosure of risk management, market risk [text block]	4.2 Market Risk Market risk refers to the risk that a change in the level of one or more market prices, rates, indices, volatilities, correlations or other market factors, such as liquidity, will result in losses in a position or in the portfolio. Grupo Aval´s financial subsidiaries (namely Banco de Bogotá, Banco de Occidente, Banco Popular, Banco AV Villas, Corficolombiana, AFP Porvenir and the trust companies (Fiduciarias) of the financial subsidiaries) actively participate in money markets, foreign exchange markets and capital markets, for both of their books (for balance sheet risk management and trading) and to provide financial services to their customers. This is done subject to established policies and risk levels. In that regard, they manage different financial asset portfolios within the allowed limits and risk levels. Market risk arises from the open positions of Grupo Aval´s financial subsidiaries in debt securities investment portfolios, derivatives and equity instruments. These risks are created by changes in factors such as interest rates, inflation, foreign currency exchange rates, share prices, credit margins of instruments and their volatility, as well as the liquidity in the markets where Grupo Aval operates. The various business units and trading desks are responsible for ensuring that market risk exposures are well-managed and prudent. The risk management groups and the management help ensure that these risks are measured and closely monitored. A variety of limits and controls are designed to control price and liquidity risk. Market risk is monitored through various measures: statistically (using Value-at-Risk models and related analytical measures); by measures of position sensitivity; and through routine stress testing conducted in collaboration with the business units by the Market Risk Unit. The material risks identified by these processes are summarized in reports produced by the Market Risk Unit that are circulated to, and discussed with, senior management. For purposes of this analysis, market risk has been segmented into two categories; trading book risk due to changes in interest rates and exchange rates, and the price risks of investments in equity securities and mutual funds. 4.2.1 Trading Book Risk Grupo Aval´s financial subsidiaries trade financial instruments for various reasons. The following are the main ones. · To offer products tailored to specific customer needs. Some of these products are designed to hedge the financial risks of customers. · To take advantage of arbitrage among different yield curves, assets and markets, and to obtain returns with an adequate use of capital. · To hedge asset and liability risk positions on proprietary positions, to act on behalf of customers or to take advantage of arbitrage opportunities mainly in foreign exchange and interest rates in both local and foreign markets. In carrying out these operations, Grupo Aval´s financial subsidiaries take risks, within a set of predetermined limits. These risks are mitigated with the use of derivative products and other financial instruments but mainly with the accomplishment of stablished limits that are permanently monitored by risk. The following is a breakdown of Grupo Aval’s financial assets and liabilities exposed to trading risk held at December 31, 2019 and 2018. Account December 31, 2019 December 31, 2018 Financial assets Debt financial assets Trading Ps. 4,673,113 Ps. 3,762,978 Investments in debt securities at FVTPL 10,102 31,256 Investments in debt securities at FVOCI 21,608,992 18,935,757 Total debt securities Ps. 26,292,207 Ps. 22,729,991 Derivative assets instruments Ps. 917,434 Ps. 768,686 Hedging derivatives assets 166,598 30,138 1,084,032 798,824 Total financial assets Ps. 27,376,239 Ps. 23,528,815 Liabilities Derivative liabilities instruments 962,438 811,305 Hedging derivatives liabilities 94,298 195,539 Total financial liabilities 1,056,736 1,006,844 Net position Ps. 26,319,503 Ps. 22,521,971 4.2.2 Description of Objectives, Policies and Processes to Manage Trading Risk The financial subsidiaries of Grupo Aval participate in money markets, foreign exchange markets and capital markets to meet their needs and those of their customers, pursuant to established policies and risk levels. In this respect, they manage different portfolios of financial assets within the limits and risk levels allowed. The risks assumed by Grupo Aval´s financial subsidiaries in transactions related to the trading or treasury book are consistent with the overall business strategy; which is based on the market depth for each instrument, its impact on risk-weighted assets and regulatory capital, the profit budget established for each business unit, and the balance sheet structure. Business strategies are established on the basis of approved limits, in an effort to balance the risk / return relationship. Moreover, there is a structure of limits consistent with Grupo Aval’s general philosophy and is based on capital levels, earnings performance and risk tolerance. The Market Risk Management System (SARM in Spanish) allows Grupo Aval´s financial subsidiaries to identify, measure, control and monitor the market risk they are exposed to in carrying out their operations. There are several scenarios in which Grupo Aval´s financial subsidiaries are exposed to trading risks. · Interest Rate Risk Grupo Aval’s financial subsidiaries are exposed to interest rate risk as a result of its market-making activities and proprietary trading in interest rate sensitive financial instruments (e.g., risk arising from changes in the level or implied volatility of interest rates, the timing of mortgage prepayments, the shape of the yield curve and credit spreads for credit sensitive instruments). · Foreign Exchange Risk Grupo Aval’s financial subsidiary’s portfolios are exposed to foreign exchange rate and implied volatility risk as a result of market making negotiation in foreign currencies and from maintaining foreign exchange positions. · Equity Price Risk and Mutual Fund Risk Grupo Aval´s financial subsidiaries are exposed to equity price risk in specific investments and are exposed to mutual fund risk in short term investments in money market or mutual funds. 4.2.2.1 Risk Management Grupo Aval financial subsidiaries manage their trading positions by employing a variety of risk mitigation strategies. These strategies include diversification of risk exposures and hedging through the purchase or sale of positions in related securities and financial instruments, including a variety of derivative products (e.g., futures, forwards, swaps and options). The financial subsidiaries manage their market risk associated with its trading activities on a decentralized basis, even though the Holding supervises the amount of risk taken in order to ensure that its global exposure limits are observed. Senior management and the boards of directors of the banking and its financial subsidiaries play an active role in managing and controlling risk. They do so by analyzing a protocol of established reports and presiding over a number of committees that comprehensively monitor - both technically and fundamentally - the different variables that influence domestic and foreign markets. This process is intended to support strategic decisions. Analyzing and monitoring the risks that Grupo Aval´s financial subsidiaries take in their operations is essential for decision making and to assess potential effects on its profit or loss. An ongoing analysis of macroeconomic conditions is necessary in order to achieve an ideal combination of risk, return and liquidity. The risks assumed in financial operations are reflected in a limit structure that includes different types of instruments, specific trading strategies, the market depth in which Grupo Aval´s financial subsidiaries operate, the impact on risk-weighted assets and regulatory capital, as well as the balance sheet structure, according to its risk framework. These limits are monitored daily and reported weekly to the Board of Directors of Grupo Aval´s financial subsidiaries . In order to minimize interest rate and exchange rate risks in specific positions and transactions, Grupo Aval´s financial subsidiaries manage hedging strategies by taking positions in derivative instruments such as non-deliverable forwards (NDF) related to securities, money market transactions and foreign exchange forwards. 4.2.2.2 Methods Used to Measure Trading Risk The Market Risk Department independently reviews the Company’s trading portfolios on a regular basis from a market risk perspective utilizing VaR (internal models and standard) and other quantitative and qualitative risk measures and analyses. Each trading business and the market risk departments also use, as appropriate, measures such as sensitivity to changes in interest rates, prices, implied volatilities and time decay to monitor and report market risk exposures. Stress testing, which measures the impact on the value of existing portfolios of specified changes in market factors for certain products, is performed periodically and is reviewed by risk areas and trading areas. Reports summarizing material risk exposures are produced by the market risk areas and are disseminated to senior management. The Boards of Directors and the Risk Committees of Grupo Aval´s financial subsidiaries approve a framework of limits based on the value-at-risk related to the annual budget. Regulatory VaR (standard calculation) The Regulatory VaR calculation is primarily used for the Superintendency of Finance’s solvency ratio calculations. Each bank has standard models for capital purposes; however, they also maintain internal models in order to manage their day to day risk and profit decisions. The Superintendency of Finance methodology is based on the Basel II model. This model applies only to the financial subsidiaries’ investment portfolio and excludes investments classified as “held to maturity” and other specific non-trading positions. Total market risk is calculated on a daily basis by aggregating the VaR for each risk exposure category on a ten-day horizon using risk factors calculated in extreme market stress scenarios. VaR at month-end comprises part of the capital adequacy ratio calculation (as set forth in Decree 2555 of 2010). The Superintendency of Finance’s rules require the financial subsidiaries to calculate VaR for the following risk factors: interest rate risk, foreign exchange rate risk, variations in stock price risk and fund risk; correlations between risk factors are not considered. The fluctuations in the portfolio’s VaR depend on sensitivity factors determined by the Superintendency of Finance, modified duration and changes in balances outstanding. The ten-day horizon is defined as the average time in which an entity could sell a trading position in the market. The VaR calculation for each subsidiary of the financial sector is the aggregate of the VaR of the entity and its subsidiaries. These methods are used to determine the occurrence of potential losses among the different business units. The methods also allow comparisons of activities in different markets and identification of the riskiest positions in treasury activities. These tools are also used to determine limits on traders’ positions and to review positions and strategies rapidly in response to changes in market conditions. VaR models have inherent limitations, partially because they rely on historical data, which may not be an indicative of future market conditions. VaR models could overestimate or underestimate the value at risk if market conditions vary significantly and they do not calculate the greatest possible loss. That’s why each company uses additional measurement tools in order to compensate for the VaR limitations; therefore, Expected Shortfall analysis, stress test and back tests are part of the risk measurement tools in the financial subsidiaries. The methods used to measure VaR are assessed regularly and back-tested to check their efficiency. Grupo Aval´s financial subsidiaries have tools to carry out portfolio stress and/or sensitivity tests, using extreme scenario simulations. Additionally, there are limits according to the "risk type" associated with each of the instruments comprising the different portfolios. These limits are related to sensitivity or impact on the value of the portfolio as a result of fluctuations of specific risk factors such as: interest rate (Rho), exchange rate (Delta) and volatility (Vega). Grupo Aval´s financial subsidiaries have counterparty and trading limits for each trader for the different trading platforms in the markets where they operate. These limits are controlled daily by the back and middle offices of each entity. Trading limits for individual traders are assigned based upon the individual´s level in the organization, market and trading experience and product and portfolio management knowledge. There is also a process to monitor the prices of fixed-income bonds issued abroad published by Precia, the local investment price provider. Financial subsidiaries monitor daily if there are any significant differences in prices provided by Precia and those observed on other sources of information such as the Bloomberg platform. In addition, fixed income bonds are subject to a qualitative liquidity analysis to determine the market depth for these types of instruments. Finally, the daily transaction monitoring process includes controlling different aspects of trading, such as terms of negotiation, non-conventional or off-market transactions, and related party transactions. According to the standard model, the market value-at-risk (VaR) for Grupo Aval´s financial subsidiaries consolidated at their level of December 31, 2019 and 2018 was as follows: December 31, 2019 December 31, 2018 Basis points of Basis points of Entity Value regulatory capital Value regulatory capital Banco Bogotá 1,280,084 141 924,767 116 Banco de Occidente 165,928 52 189,871 75 Banco Popular 128,317 72 162,888 93 Banco AV Villas 58,032 59 37,942 41 Corficolombiana 173,456 7 219,656 12 The following tables show the VaR calculation relating to each of the risk factors described above and based on the Superintendency of Finance Methodology (Regulatory VaR) for the years ended December 31, 2019 and 2018, for a ten-day horizon for each of our Colombian banking subsidiaries. The minimum and maximum levels are determined based on end-of-month calculations, using 12 data points between January and December. Average values are determined based on the 13-month data points between December of the year analyzed and December of the previous year. Banco de Bogotá S.A Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 444,950 520,569 607,973 568,537 Exchange rate 277,932 334,039 383,189 379,406 Shares 8,394 9,601 10,964 10,964 Mutual funds 270,918 308,799 322,458 321,177 VaR portfolio 1,002,195 1,173,008 1,318,037 1,280,084 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 352,595 387,828 420,474 352,595 Exchange rate 234,509 263,363 298,257 298,257 Shares 6,647 7,605 8,335 8,231 Mutual funds 200,510 226,030 266,906 265,684 VaR portfolio 828,688 884,826 969,931 924,767 Banco de Bogota´s market risk weighted assets remained on average 9.9% of the total risk-weighted assets during the year ended December 31, 2019 and 7.9% on the year ended December 31, 2018. Banco de Occidente S.A Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 125,615 144,188 162,628 158,200 Exchange rate 104 2,458 4,426 2,995 Shares — — — — Mutual funds 4,317 4,556 4,733 4,733 VaR portfolio 130,036 151,202 171,787 165,928 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 184,106 199,399 218,732 184,106 Exchange rate 595 1,697 3,817 1,479 Shares — — — — Mutual funds 2,820 3,849 4,526 4,286 VaR portfolio 187,521 204,945 227,074 189,871 Banco de Occidente´s market risk weighted assets remained on average 4.2% of the total risk-weighted assets during the year ended December 31, 2019 and 5.6% for the year ended December 31, 2018. Banco Popular S.A Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 107,694 108,389 109,605 108,112 Exchange rate 4,699 5,155 5,615 5,280 Shares 22 22 23 348 Mutual funds 8,701 10,769 14,954 14,577 VaR portfolio 121,491 124,335 130,135 128,317 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 115,829 136,338 154,233 148,343 Exchange rate 2,125 3,867 6,135 3,325 Shares 929 949 963 Mutual funds 6,583 6,971 10,420 10,274 VaR portfolio 126,533 148,125 168,310 162,888 Banco Popular´s market risk weighted assets remained on average 6.4% of the total risk-weighted assets during the year ended December 31, 2019 and 8.4% on the year ended December 31, 2018. Banco Comercial AV Villas S.A Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 22,193 40,628 55,972 55,021 Exchange rate 1 27 80 80 Shares — — — — Mutual funds 489 628 2,931 2,931 VaR portfolio 22,852 41,284 58,032 58,032 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 12,884 35,893 48,978 37,115 Exchange rate — 985 2,738 30 Shares — — — — Mutual funds 177 1,441 4,455 797 VaR portfolio 15,844 38,319 52,166 37,942 Banco AV Villas’ market risk weighted assets remained on average 5.3% of the total risk-weighted assets during the year ended December 31, 2019 and 3.8% on the year ended December 31, 2018. Corficolombiana S.A Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 67,499 104,128 156,208 154,477 Exchange rate 610 2,599 4,867 4,129 Shares 10,864 11,085 11,283 12,119 Mutual funds 2,577 2,935 3,473 2,731 VaR portfolio 81,632 120,746 174,832 173,456 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 187,983 201,515 211,039 208,375 Exchange rate 436 4,490 7,707 436 Shares 10,125 10,370 10,954 10,125 Mutual funds 699 856 1,020 720 VaR portfolio 205,505 217,231 226,727 219,656 Corficolombiana’s market risk weighted assets remained on average 16.0% of the total risk-weighted assets during the year ended December 31, 2018 and 23.8% on the year ended December 31, 2018. As Corficolombiana does not have a relevant number of loans or other significant risk weighted assets, the weight of the market risk weighted assets is higher than in the banks. Investment Price Risk in Equity Instruments Equity Investments As stated above, variations in equity price risk measured based on the regulatory VaR methodology include both equity securities held for trading through profit or losses and non-strategic holdings. In addition, it does not discriminate between listed and unlisted equity investments or between those which consolidate and those which do not. It includes investments in non-financial institutions. Holding periods for many of Corficolombiana’s equity investments exceed ten years. Its largest investments have remained in the portfolio for several years and are intended to remain as permanent investments. At December 31, 2019 and at December 31, 2018, the investments subject to regulatory VaR were holdings in Mineros S.A. The following table breaks down our investments subject to regulatory VaR by time since initial investments at December 31, 2019 and 2018. At December 31, 2019 2018 Investment Investment subject to Percentage subject to Regulatory Regulatory of Regulatory Regulatory Percentage of VaR VaR portfolio VaR VaR portfolio More than 36 months 75,584 11,111 100 % 45,706 6,719 100 % Total 75,584 11,111 100 % 45,706 6,719 100 % 4.2.3 Structural foreign exchange risk Grupo Aval´s financial subsidiaries have agencies and subsidiaries offshore and have assets and liabilities in foreign currencies and thus are exposed to changes in the exchange rates, primarily the United States Dollar. Foreign exchange risk is present when there are assets and liabilities denominated in foreign currency, when investments are made in subsidiaries and branches abroad and when there are loan portfolios, and obligations in foreign currency. There is also foreign exchange risk in foreign currency off balance sheet transactions. Subsidiaries of the financial sector in Colombia are authorized by the country’s central bank (Banco de la República) to trade currencies and to maintain balances in foreign currency in accounts abroad. Colombian law allows for banks to maintain a net daily asset or liability position in foreign currency, determined as the difference in foreign currency denominated rights and foreign currency denominated obligations including both on and off-balance sheet positions. On a separate basis, the average of this difference over three business days cannot exceed twenty percent (20%) of the entity’s regulatory capital. On a consolidated basis, the average of this difference over three business days (positive or negative) cannot exceed forty percent (40%) of the consolidated entity´s regulatory capital. The maximum and minimum total foreign currency position and the spot foreign currency position are determined according to each entity´s regulatory capital. The regulatory capital that is used in the calculations corresponds to the regulatory capital of the last business day of the previous two-months. The exchange rate used in the calculation is the average of the exchange rate set by the Superintendency of Finance at the end of the previous month. The maximum and minimum total foreign currency position and the spot foreign currency position are determined according to each entity’s regulatory capital. The regulatory capital that is used in the calculations corresponds to the regulatory capital of the last business day of two-months ago. The exchange rate used in the calculation is the average of the exchange rate set by the Superintendency of Finance at the end of the previous month. A substantial amount of Grupo Aval’s foreign currency assets and liabilities are in U.S. dollars. Details on the assets and liabilities in foreign currency held by Grupo Aval at December 31, 2019 and 2018 are shown below: December 31,2019 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 5,003 1,266 20,545,934 Investments in debt securities at fair value through profit or loss 168 17 606,107 Investments in debt securities at fair value through OCI 2,634 705 10,942,222 Investments in debt securities at amortized cost 7 - 23,043 Loan portfolio financial assets at amortized cost 16,078 5,006 69,096,428 Derivative financial assets held for trading 257 - 843,700 Derivative financial assets held for hedging 51 - 166,598 Trade receivable 238 168 1,329,979 Total financial assets 24,436 7,162 103,554,011 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 274 - 897,138 Derivative financial liabilities held for hedging 28 - 90,726 Customer deposits 16,772 5,828 74,064,051 Financial obligations 8,428 772 30,148,583 Accounts payable 407 - 1,334,317 Total financial liabilities 25,909 6,600 106,534,815 Net financial asset (liability) position (1,473) 562 (2,980,804) December 31,2018 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 4,859 1,075 19,297,896 Investments in debt securities held for trading 121 15 441,801 Investments in securities available-for-sale 2,201 589 9,068,739 Investments in debt securities held-to-maturity 10 — 32,321 Loan portfolio financial assets at amortized cost 15,923 4,706 67,023,090 Derivative financial assets held for trading 222 1 725,433 Derivative financial assets held for hedging 9 — 30,138 Trade receivable 246 176 1,370,820 Total financial assets 23,591 6,562 97,990,238 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 236 3 776,162 Derivative financial liabilities held for hedging 60 — 195,539 Customer deposits 14,914 5,077 64,971,825 Financial obligations 9,457 666 32,899,230 Accounts payable 442 — 1,437,447 Total financial liabilities 25,109 5,746 100,280,203 Net financial asset (liability) position (1,518) 816 (2,289,965) Grupo Aval’s financial subsidiaries hedge their foreign exchange exposure using derivatives instruments, especially forwards. The net foreign currency position of each subsidiary is monitored on a daily basis. Grupo Aval has a number of investments in foreign subsidiaries and branches whose net assets are exposed to foreign exchange risk because of the translation of gains or losses for the purpose of consolidating their financial statements. The exposure arising from net assets in foreign operations is hedged primarily with financial obligations, bonds issued to the market and foreign exchange derivative instruments. The following table includes a sensitivity analysis of the foreign exchange effect on Grupo Aval’s equity and the foreign exchange effect on profit before taxes if the peso value of the U.S. dollar increases or decrease by 100 Colombian Peso per U.S. dollar: December 31,2019 Increase Decrease Ps.100 per U.S. Ps.100 per U.S. dollar dollar Equity Ps. (13,874) Ps. 13,874 Foreign exchange effect on profit before taxes (20,708) 20,708 December 31,2018 Increase Decrease Ps.100 per U.S. Ps.100 per U.S. dollar dollar Equity Ps. (33,579) Ps. 33,579 Foreign exchange effect on profit before taxes (53,300) 53,300 4.2.4 Structural Interest Rate Risk Non-trading instruments consist primarily of loans and deposits. Subsidiaries of the financial sector may be affected by their interest margins which may affect as a result of changes in interest rates; but they can also reduce and create losses in the event of unexpected movements in these rates. Grupo Aval´s financial subsidiaries monitor their interest rate risk daily and set limits to the asset and liability mismatches when they are repriced. They analyze their interest rate exposure in a dynamic way. Scenario modelling considers renewal of existing positions, financing alternatives and hedges. Considering these scenarios, the financial subsidiaries calculate the profit and loss impact for a given change in interest rates. The following table shows interest rates exposure for assets and liabilities at December 31, 2019 and 2018. In this table, fixed rate instruments are classified according to the maturity date and floating rate instruments are classified according to the repriced date. The following analysis includes all the global interest rate exposure in each bucket for the financial subsidiaries: December 31, 2019 Less than From one to From six to More than a Non- Assets one month six months twelve months year interest Total Cash and cash equivalents Ps. 2,662,681 Ps. — Ps. — Ps. — Ps. 27,454,555 Ps. 30,117,236 Investments in debt securities at FVTPL 82,749 1,972,593 871,982 1,745,789 — 4,673,113 Investments in debt securities mandatory at FVTPL — — — 10,102 — 10,102 Investments in debt securities at FVOCI 743,846 2,132,946 1,289,402 17,442,798 — 21,608,992 Investments in debt securities at amortized cost 2,765,688 265,131 23,043 — — 3,053,862 Service concession arrangements — — — 2,706,030 — 2,706,030 Commercial loans and leases 21,918,784 44,037,038 8,461,102 27,238,736 — Consumer loans and leases 10,993,634 9,758,318 1,660,573 37,427,926 — 59,840,451 Mortgages and housing leases 7,212,959 1,890,949 900,236 10,217,539 — 20,221,683 Microcredit loans and leases 30,911 18,568 39,283 321,558 — 410,320 Trade receivable — — — 387,059 8,895,674 9,282,733 Total Assets Ps. 46,411,252 Ps. 60,075,543 Ps. 13,245,621 Ps. 97,497,537 Ps. 36,350,229 Ps. — Less than From one to From six to More than a Non- Liabilities one month six months twelve months year interest Total Checking accounts Ps. 21,174,879 Ps. — Ps. — Ps. — Ps. 21,274,823 Ps. 42,449,702 Time deposits 10,514,186 29,426,123 15,525,670 17,759,210 — 73,225,189 Saving deposits 59,352,760 — — — . — 59,352,760 Other deposits — — — — 463,770 463,770 Interbank and overnight funds 8,414,438 75,543 — 750,498 — 9,240,479 Leases contracts* 93,438 130,472 158,021 2,651,571 — 3,033,502 Borrowing from banks and similar 2,249,132 6,367,707 2,335,725 5,817,278 — 16,769,842 Long-term debt 276,735 3,567,489 680,677 17,393,367 — 21,918,268 Borrowing from development entities 1,175,637 1,199,311 115,314 1,392,223 — 3,882,485 Total Liabilities Ps. 103,251,205 Ps. 40,766,645 Ps. 18,815,407 Ps. 45,764,147 Ps. 21,738,593 Ps. *Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). December 31, 2018 Less than From one to From six to More than a Non- Assets one month six months twelve months year interest Total Cash and cash equivalents Ps. 3,110,667 Ps. — Ps. — Ps. — Ps. 25,290,616 Ps. 28,401,283 Investments in debt securities at FVTPL 25,077 376,999 1,216,834 2,144,068 — 3,762,978 Investments in debt securities mandatory at FVTPL — — — 31,256 — 31,256 Investments in debt securities at FVOCI 131,497 2,056,389 1,163,367 15,584,504 — 18,935,757 Investments in debt securities at amortized cost 671,047 951,850 1,348,691 1,028 — 2,972,616 Service concession arrangements — — — 2,488,414 — 2,488,414 Commercial loans and leases 28,546,532 29,463,725 9,612,217 34,786,503 — 102,408,977 Consumer loans and leases 10,538,797 7,975,944 2,566,425 34,373,898 — 55,455,064 Mortgages and housing leases 7,649,242 1,771,712 419,518 8,751,631 — 18,592,103 Microcredit loans and leases 31,729 17,956 38,304 337,708 — 425,697 Trade receivable — — — 3,043,403 4,025,717 7,069,120 Total Assets Ps. 50,704,588 Ps. 42,614,575 Ps. 16,365,356 Ps. 101,542,413 Ps. 29,316,333 Ps. 240,543,265 Less than From one to From six to More than a Non- Liabilities one month six months twelve months year interest Total Checking accounts Ps. 22,377,653 Ps. — Ps. — Ps. — Ps. 17,325,225 Ps. 39,702,878 Time deposits 9,741,623 28,546,101 15,447,825 13,117,463 — 66,853,012 Saving deposits 36,523,899 20,697,540 — — — 57,221,439 Other deposits — — — — 582,122 582,122 Interbank and overnight funds 6,099,084 714,994 — — — 6,814,078 Borrowing from banks and others 1,566,524 11,497,277 1,164,075 6,382,890 — 20,610,766 Long-term debt 73,565 3,369,988 656,291 16,040,506 — 20,140,350 Borrowing from development entities 563,370 259,194 1,607,273 1,216,959 — 3,646,796 Total Liabilities Ps. 76,945,718 Ps. 65,085,094 Ps. 18,875,464 Ps. 36,757,818 Ps. 17,907,347 Ps. 215,571,441 As part of their management of interest rate risk, financial subsidiaries analyze the interest rate mismatches between their interest-earning assets and their interest-earning liabilities. This sensitivity analysis assumes the composition of Grupo Aval´s balance sheet remains constant over the period being measured and assumes interest rate changes are reflected uniformly across the yield curve. The sensitivity analysis uses scenarios of interest rates increasing /decreasing 50 and 100 basis points from the average of the last 12 months of the balances of financial assets and liabilities with all other variables held constant. These scenarios are not predictions of future market events, but they illustrate the effect that it may have on the amortized cost (and fair value of portfolio investments) of Grupo Aval´s financial assets and liabilities. If interest rates were decreased by 50 or 100 basis points, Grupo Aval´s net interest income would have increased by Ps 173,629 and Ps 348,994, respectively. The above due to the decrease in accrued interest from liabilities would be greater than the decrease in accrued interest from assets. Moreover, if interest rates were increased 50 or 100 basis points, Grupo Aval´s net interest income would have decreased by Ps 174,497 and Ps 348,935, respectively. The above due to the increase in the value of accrued interest from liabilities would be greater than the increase in accrued interests from assets. The following is a breakdown of interest bearing assets and liabilities, by interest rat
Disclosure of risk management, liquidity risk [text block]	4.3 Liquidity Risk Liquidity risk management has always been a basic element of Grupo Aval’s business strategy and a fundamental cornerstone, together with capital, on which the strength of its balance sheet rests. Liquidity risk is related to the inability of Grupo Aval´s financial subsidiaries to fulfill their obligations with customers, financial market counterparties, lenders, suppliers, authorities or other stakeholders at any given moment, in any currency and in any location. Structural liquidity management aims to finance the activity’s recurring nature of each company under optimal terms of time and cost, avoiding taking unwanted liquidity risks. In Grupo Aval, the financing and liquidity model is decentralized and based on autonomous subsidiaries that are responsible for covering their own liquidity needs. Therefore, each entity reviews its available resources on a daily basis in order to control its liquidity risk. Grupo Aval financial subsidiaries are responsible for covering the liquidity needs arising from its current and future activity. In consequence, they will either take deposits from its customers in its area of influence, or by resorting to the wholesale markets where it operates. As a result, Grupo Aval financial subsidiaries have a considerable capacity to attract stable deposits, as well as a significant liquidity to raise funds in the wholesale markets. The policies with respect to liquidity risk at Grupo Aval and the financial subsidiaries in Colombia are directed at complying with the guidelines established by the Superintendency of Finance. These guidelines require that Colombian financial subsidiaries establish a system for the administration of liquidity risks (Sistema de Administración de Riesgo de Liquidez) which includes the identification, measurement, control and monitoring functions required to ensure the management of day to day liquidity requirements, adjust to minimum requirements in terms of liquidity buffers and establish liquidity contingency plans to deal with any unexpected situation. The methodology for the assessment and measurement of liquidity risk at BAC includes: a) Generation of liquidity GAP analysis by currency for the short and long term, including normal and stressed scenarios; b) Coverage indicators by currency for sight and 30 days, in normal and stressed scenarios; c) Prudential regulation indicators of maturity by currency for 1 and 3 months; d) Indicator of liquidity coverage by currency according to regulatory provisions; e) Internal measurements to qualify liquidity risk by currency (global liquidity indicator). Therefore, financial subsidiaries controlled by Grupo Aval, in Colombia, are required to maintain adequate liquidity positions based on the Superintendency of Finance’s liquidity parameters, using a short-term liquidity index (Indicador de Riesgo de Liquidez), or “IRL,” that measures liquidity for different time horizons from 1 to 90 days. This index is defined as the difference between adjusted liquid assets and net liquidity requirements. " Liquid assets include total debt securities adjusted by market liquidity and exchange rate, excluding investments classified as “held to maturity” different from mandatory investments, Central Bank deposits and available cash. " Net liquidity requirements are the difference between expected contractual asset and contractual and non-contractual liability cash flows. Cash flows from past due loans are not included in this calculation. During 2019, as part of its convergence towards Basel III standards, the Superintendency of Finance incorporates the segmentation by type of deposits in the calculation of non-contractual liability cash flows. The methodology first segments each demand and savings deposits in eight categories, according with their balance and the type of customer; then computes the run-off rate for each category and finally multiply both to compute the non-contractual reserve. Grupo Aval´s financial subsidiaries assess the volatility of deposits, debt levels, the asset and liability structure, the liquidity of different asset types, the availability of lines of credit and the effectiveness of asset and liability management. The objective is to have adequate liquidity to manage possible stress scenarios. The quantification of money market funding is an integral part of the liquidity measurement carried out by each entity. Based on statistical analysis, primary and secondary sources of liquidity are identified in order to ensure funding stability and diversification, and to minimize concentration. Financial subsidiaries in Colombia and other countries must maintain cash on hand and in Central Bank deposits in order to comply with reserve requirements. The reserve requirement calculation is based upon the daily average of the different types of deposits on a biweekly basis. As of December 31, 2019, and 2018, all of Grupo Aval´s financial subsidiaries comply with reserve requirements. Details on the required percentage in each country are shown below: Requested Percentage Country Details % Colombia Checking account and Savings accounts 11% Time deposits < 18 months 4.5% Guatemala Deposits and Capital raising 11.6% El Salvador 1st Demand deposits (1) 25% 2nd Demand deposits (2) 25% 3rd Debt securities 50% Honduras Demand deposits 12% Mandatory investment in local currency 5% Mandatory investment in foreign currency 12% Nicaragua Daily, Liabilities in local and foreign currency 12% Biweekly, Liabilities in local and foreign currency 14% Costa Rica Deposits in local and foreign currency 15% Capital raising in local and foreign currency 15% (1) This refers to demand deposits in Central Bank or overseas banks. (2) This refers to demand deposits in Central Bank, overseas banks or debt securities issue by the Central Bank. There are no reserve requirements for our subsidiaries located in Panamá because there is no Central Bank to regulate such requirements. The following is a breakdown of the liquid assets in different time horizon from 1 to 90 days, as per the separate figures of each of our financial subsidiaries at December 31, 2019 and 2018: December 31, 2019 Liquid assets available at the end From 31 to 90 Bank of the year (1) From 1 to 7 days (2) From 1 to 30 days (2) days (2) Banco de Bogotá 11,480,613 9,127,754 2,141,891 (14,048,998) Banco Occidente 6,013,484 5,381,263 3,449,519 (1,382,231) Banco Popular 2,708,977 2,196,520 543,111 (2,426,968) Banco AV Villas 1,777,483 1,489,391 573,001 (1,756,092) Corficolombiana 1,648,321 1,238,060 970,752 440,603 December 31, 2018 Liquid assets available at the end From 31 to 90 Bank of the year (1) From 1 to 7 days (2) From 1 to 30 days (2) days (2) Banco de Bogotá 10,936,886 10,370,295 8,892,523 321,897 Banco Occidente 5,913,723 5,244,524 4,185,759 1,631,575 Banco Popular 3,622,232 3,305,221 2,505,573 164,075 Banco AV Villas 2,035,362 1,724,944 1,304,447 (37,659) Corficolombiana 1,131,464 585,045 386,081 (159,983) (1) Liquid assets are the sum of the assets that are readily convertible to cash. These assets include cash on hand and bank deposits including Central Bank deposits, securities or in money market transactions and have not been used in borrowing operations in the money market. It also includes investments coupons that have been transferred to the entity in debt securities recorded at fair value, investments in mutual funds with no withdrawal restrictions, and debt securities carried at amortized cost, provided they are legally required or “mandatory” investments, subscribed in the primary market and that can be used for money market operations. The value of the liquid assets mentioned above, is calculated at the fair value market price on the date of the assessment. (2) This amount is the remaining value of the liquid assets in the specified time period, or the LRI, that is calculated as the difference among the liquid assets and the liquidity requirement. The liquidity requirement is the difference of contractual cash inflows and contractual and non-contractual cash outflows during the period according to the LRI methodology. The liquidity calculations described above assume normal liquidity conditions, according to the contractual flows and historical experience of each of the financial subsidiaries. In extreme liquidity events caused by unusual deposit withdrawals, the financial subsidiaries have contingency plans that include available credit lines with other financial institutions and access to special lines of credit with Colombia´s Central Bank, in accordance with current regulations. These lines of credit are granted when required and are collateralized by Colombian government securities and by a portfolio of high quality loans, as specified in the Central Bank regulations. Grupo Aval´s financial subsidiaries did not access the Central Bank special lines of credit during the years ended at December 31, 2019 and 2018. The following is a breakdown shows the contractual undiscounted cash flows of the financial assets and liabilities including contractual interest receivable and payable at December 31, 2019 and 2018. December 31, 2019 Less than From one to six From six to twelve More than Assets one month months months a year Total Cash and cash equivalents Ps. 28,683,338 Ps. — Ps. — Ps. — Ps. 28,683,338 Investments in debt securities at FVTPL 937,550 1,491,328 984,902 1,475,733 4,889,513 Investments in debt securities at FVOCI 1,269,356 2,334,438 1,951,863 19,921,644 25,477,301 Investments in debt securities at amortized cost 833,179 858,257 1,404,163 — 3,095,599 Commercial loans and leases 14,025,655 29,465,200 16,865,877 69,494,065 129,850,797 Consumer loans and leases 8,662,984 17,571,059 10,005,080 53,010,916 89,250,039 Mortgages and housing leases 447,147 984,046 1,147,043 33,219,821 35,798,057 Microcredit loans and leases 55,112 122,167 123,624 240,181 541,084 Trading derivatives 620,242 229,909 37,138 29,374 916,663 Hedging derivatives 163,825 3,401 18 — 167,244 Trade receivable 2,342,007 — — 9,631,524 11,973,531 Other assets 1,163,339 — — — 1,163,339 Total Assets Ps. 59,203,734 Ps. 53,059,805 Ps. 32,519,708 Ps. 187,023,258 Ps. 331,806,505 Less than From one to six From six to twelve More than Liabilities one month months months a year Total Checking accounts Ps. 42,449,701 Ps. — Ps. — Ps. — Ps. 42,449,701 Time Deposits 8,631,705 25,954,834 17,871,428 25,483,897 77,941,864 Saving deposits 59,352,759 — — — 59,352,759 Other deposits 463,770 — — — 463,770 Interbank and overnight funds 5,819,104 3,420,692 — — 9,239,796 Leases contracts* 92,255 122,866 152,352 2,669,047 3,036,520 Borrowing from banks and other 2,211,662 4,877,570 3,215,999 7,450,891 17,756,122 Long-term debt 92,130 1,244,776 1,260,353 23,233,085 25,830,344 Borrowing from development entities 119,662 751,027 388,785 3,434,525 4,693,999 Trading derivatives 606,476 277,657 25,612 18,240 927,985 Hedging derivatives 73,625 19,681 18 3,359 96,683 Other liabilities 4,997,412 240,030 9,306 1,121,438 6,368,186 Total Liabilities Ps. 124,910,261 Ps. 36,909,133 Ps. 22,923,853 Ps. 63,414,482 Ps. 248,157,729 Less than one From one to From six to More than a Commitments Loans month six months twelve months year Total Guarantees Ps. 2,488,242 Ps. — Ps. — Ps. — Ps. 2,488,242 Standby letters of credit 953,289 — — — 953,289 Overdraft facility 67,126 — — — 67,126 Standby credit card facility 20,054,171 109,451 82,088 328,352 20,574,062 Undrawn approved loans 561,330 52,807 — — 614,137 Others 99,270 — — — 99,270 Total Commitments Loans Ps. 24,223,428 Ps. 162,258 Ps. 82,088 Ps. 328,352 Ps. 24,796,126 *Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). December 31, 2018 Less than one From one to From six to More than a Assets month six months twelve months year Total Cash and cash equivalents Ps. 28,450,114 Ps. — Ps. — Ps. — Ps. 28,450,114 Investments in debt securities at FVTPL 576,072 350,307 1,026,669 2,018,209 3,971,257 Investments in debt securities at FVOCI 163,389 2,272,601 1,547,078 18,292,502 22,275,570 Investments in debt securities at amortized cost 1,691,200 447,674 866,184 1,019 3,006,077 Commercial loans and leases 12,524,966 24,196,186 13,982,791 58,838,873 109,542,816 Consumer loans and leases 6,218,323 12,707,647 7,369,756 45,240,501 71,536,227 Mortgages and housing leases 297,155 1,376,279 1,626,730 32,061,546 35,361,710 Microcredit loans and leases 58,093 125,474 128,180 256,278 568,025 Trading derivatives 476,088 244,385 22,483 14,216 757,172 Hedging derivatives 28,941 4,083 — — 33,024 Trade receivable 4,260,837 — 397 2,929,814 7,191,048 Other assets 631,231 — — — 631,231 Total Assets Ps. 55,376,409 Ps. 41,724,636 Ps. 26,570,268 Ps. 159,652,958 Ps. 283,324,271 Less than one From one to From six to More than a Liabilities month six months twelve months year Total Checking accounts Ps. 39,708,169 Ps. — Ps. — Ps. — Ps. 39,708,169 Time Deposits 8,375,127 26,030,729 15,605,292 20,730,824 70,741,972 Saving deposits 57,443,560 — — — 57,443,560 Other deposits 582,122 — — — 582,122 Interbank and overnight funds 6,813,329 — — — 6,813,329 Borrowing from banks and other 1,665,739 8,779,185 4,490,249 7,248,223 22,183,396 Long-term debt 138,362 904,752 1,896,186 21,493,625 24,432,925 Borrowing from development entities 145,712 578,545 423,122 3,189,314 4,336,693 Trading derivatives 515,697 236,390 20,305 27,955 800,347 Hedging derivatives 182,849 6,587 6,718 — 196,154 Other Liabilities 6,884,154 896,154 67,042 299 7,847,649 Total Liabilities Ps. 122,454,820 Ps. 37,432,342 Ps. 22,508,914 Ps. 52,690,240 Ps. 235,086,316 Less than one From one to From six to More than a Commitments Loans month six months twelve months year Total Guarantees Ps. 2,297,206 Ps. 9,742 Ps. 4,222 Ps. 2,370 Ps. 2,313,540 Standby letters of credit 928,585 208 2 — 928,795 Overdraft facility 306,740 — — — 306,740 Standby credit card facility 20,409,059 — — — 20,409,059 Undrawn approved loans 3,612,600 — — — 3,612,600 Others 394,688 — — — 394,688 Total Commitments Loans Ps. 27,948,878 Ps. 9,950 Ps. 4,224 Ps. 2,370 Ps. 27,965,422
Disclosure of risk management, regulatory capital management [text block]	4.4 Regulatory capital management Grupo Aval, Financial Holding As a result of Colombian Law 1870 of 2017, also known as Financial Conglomerates Law, which came in effect on February 6, 2019, Grupo Aval is now also subject to the inspection and supervision of the Superintendency of Finance (SFC). This law created the legal category of financial holding companies and financial conglomerates and gives to the Colombian government the power, to impose capital adequacy requirements on the financial conglomerates on an aggregate/consolidated basis, among others. In compliance with Decree 774 issued on May 8th, 2018 by the Colombian Government and which came into force on 8th of November 2019 after an 18-month transition period and the External Circular 012 of June 5, 2018 ( Circular Externa 012 del 5 de junio de 2019 ) issued by the Superintendency of Finance (SFC), Grupo Aval, Financial Holding, has the faculty to establish conditions for adequate capital requirements. Grupo Aval reported to the SFC its first official capital requirements calculation in February 25, 2020, based on financial statements as of December 31, 2019. As of December 31, 2019, Grupo Aval, Financial Conglomerate, complied with minimum regulatory capital requirements. Grupo Aval’s financial subsidiaries Grupo Aval’s financial subsidiaries are subject to a “Total Solvency Risk Ratio” (Total Regulatory Capital/Risk Weighted Assets) of at least 9% and a “Basic Solvency Risk Ratio” (Basic Ordinary Regulatory Capital/Risk Weighted Assets) of at least 4.5%. See Regulatory framework for Colombian financial institutions - Capital Adequacy Requirements section. As of December, 31 2019, and 2018, all of Grupo Aval´s financial subsidiaries complied with the minimum regulatory capital requirements, as established by Basel II. Below is shown the consolidated outcome by entity of the minimum regulatory capital, required for the entities regulated by the Superintendency of Finance: December 31, 2019 Banco de Banco de Banco Banco AV Regulatory Capital Bogotá Occidente Popular Villas Corficolombiana Regulatory Capital 18,508,842 3,908,477 2,384,460 1,293,359 4,032,713 Basic ordinary equity 13,082,557 3,202,018 1,898,181 1,174,605 3,761,178 Basic additional equity 5,426,285 706,459 486,279 118,754 271,535 Market risk 14,223,159 1,401,440 1,425,745 644,799 1,927,291 Credit risk 129,836,198 31,807,330 21,015,333 11,488,357 10,102,536 Total assets weighted by risk 144,059,357 33,208,770 22,441,078 12,133,156 12,029,827 Total solvency risk index. 12.85 % 11.77 % 10.63 % 10.66 % 33.52 % Basic solvency risk index. 9.08 % 9.64 % 8.46 % 9.68 % 31.27 % December 31, 2018 Banco de Banco de Banco Banco AV Regulatory Capital Bogotá Occidente Popular Villas Corficolombiana Regulatory Capital 17,730,918 3,917,005 2,170,075 1,176,179 3,631,640 Basic ordinary equity 11,655,669 3,166,981 1,648,438 1,106,529 3,381,550 Basic additional equity 6,075,249 750,024 521,637 69,650 250,090 Market risk 10,275,186 1,754,924 1,809,867 421,379 2,440,618 Credit risk 120,604,192 29,405,386 19,624,155 10,759,423 7,834,598 Total assets weighted by risk 130,879,378 31,160,310 21,434,022 11,180,802 10,275,216 Total solvency risk index. 13.55 % 12.57 % 10.12 % 10.52 % 35.34 % Basic solvency risk index. 8.91 % 10.16 % 7.69 % 9.90 % 32.91 %

ESTIMATION OF FAIR VALUE

ESTIMATION OF FAIR VALUE	12 Months Ended
	Dec. 31, 2019
Disclosure of Estimations of Fair Value [Abstract]
Disclosure of fair value measurement [text block]	NOTE 5 – ESTIMATION OF FAIR VALUE The fair value of the financial assets and liabilities traded in active markets (such as financial assets in debt securities, equity securities and derivatives actively listed in stock exchanges or interbank markets) is based on dirty prices supplied by a price vendor. An active market is a market where transactions for assets or liabilities are carried out with sufficient frequency and volume in order to provide price information on an ongoing basis. A dirty price includes accrued and pending interest on the security, as from the date of issuance or last payment of interest, until the date in which the purchase and sale operation is due. The fair value of financial assets and liabilities that are not traded in an active market is determined through appraisal techniques determined by the price supplier or by the management of Grupo Aval’s entities. Appraisal techniques used for non-standardized financial instruments such as options, foreign exchange swaps and derivatives of the over-the-counter market, which include the use of interest rate or currency assessment curves built by providers and extrapolated to the specific conditions of the instrument being appraised, discounted cash flow analysis, options pricing models and other valuation techniques commonly used by market participants who rely mostly on market data and the least possible on specific data of entities. Grupo Aval may use models developed internally for financial instruments with no active markets. These models are usually based on valuation techniques and methods generally standardized in the financial sector. The valuation models are mainly used for appraising financial equity instruments not listed on the stock exchange, debt certificates and other debt instruments for which the markets were or have been inactive during the financial period. Some inputs of these models may not be observable in the market and are therefore estimated based on assumptions. The output of a model is always an estimate or approximation of a value that cannot be determined with certainty, and the valuation techniques used may not fully reflect all the factors relevant to the positions of Grupo Aval. Therefore, the appraisals are adjusted, if necessary, to allow for additional factors, including country risk, liquidity risks and counterparty risks. The fair value hierarchy has the following levels: · Level 1 inputs are quoted prices (unadjusted) in active markets for assets or liabilities identical to those which the entity can access as of the date of measurement. · Level 2 inputs are inputs different than quoted prices included in Level 1 that are observable for the asset or liability, whether directly or indirectly in non-active markets. · Level 3 inputs are unobservable inputs for the asset or liability. The level in the fair value hierarchy within which fair value measurement is classified in whole is determined based on the input of the lowest level that is most significant for measuring its total fair value. For such purpose, the relevance of an input is assessed in connection with the measurement of the total fair value. Financial instruments that are listed in markets that are not deemed active, but which are valued based in accordance with quoted market prices, quotes from price vendors or alternative price sources supported by observable inputs, are classified in Level 2. If a fair value measurement uses observable inputs that require significant adjustments based on unobservable inputs, this measurement is classified as Level 3. The assessment of the importance of a particular input to the measurement of fair value in whole requires judgment, taking into account specific factors of the asset or liability. Determining what is deemed as ‘observable’ requires a significant judgment by Grupo Aval. Grupo Aval considers as observable data the market data which is already available, distributed or updated by the price suppliers, and it is reliable and verifiable, with no property rights, and provided by independent sources which are actively involved in the reference market. 5.1 Measurements of Fair Value on a Recurring Basis Measurements of fair value on a recurring basis are those required or allowed in statement of financial position at the end of each accounting period. The following table presents an analysis, within the hierarchy of fair value, of Grupo Aval´s assets and liabilities (by class), measured at fair value as of December 31, 2019 and 2018 on a recurring basis. December 31, 2019 Level 1 Level 2 Level 3 Total Assets Trading investments Securities issued or secured by Colombian Government Ps. 1,503,708 Ps. 922,052 Ps. — Ps. 2,425,760 Securities issued or secured by other Colombian Government entities — 175,794 — 175,794 Securities issued or secured by foreign Governments 3,220 136,314 — 139,534 Securities issued or secured by central banks — 13,966 — 13,966 Securities issued or secured by other financial entities 33,179 1,817,243 — 1,850,422 Securities issued or secured by non-financial sector entities — 33,942 — 33,942 Others — 33,695 — 33,695 Total trading investments Ps. 1,540,107 Ps. 3,133,006 Ps. — Ps. 4,673,113 Investments in debt securities at fair value through profit or loss Others — — 10,102 10,102 Total investments in debt securities at fair value through profit or loss Ps. 1,540,107 Ps. 3,133,006 Ps. 10,102 Ps. 4,683,215 Investments in debt securities at fair value through OCI Securities issued or secured by Colombian Government 7,923,409 3,720,533 — 11,643,942 Securities issued or secured by other Colombian Government entities 191,994 273,684 — 465,678 Securities issued or secured by foreign Governments 9,954 4,987,476 — 4,997,430 Securities issued or secured by central banks — 970,095 — 970,095 Securities issued or secured by other financial entities 237,887 2,817,038 — 3,054,925 Securities issued or secured by non-financial sector entities — 34,840 — 34,840 Others — 442,082 — 442,082 Total investments in debt securities at fair value through OCI Ps. 8,363,244 Ps. 13,245,748 Ps. — Ps. 21,608,992 Total investments in debt securities Ps. 9,903,351 Ps. 16,378,754 Ps. 10,102 Ps. 26,292,207 Equity securities Trading equity securities 1,679 3,046,048 475,394 3,523,121 Investments in equity through OCI 1,174,959 46,228 106,905 1,328,092 Total equity securities Ps. 1,176,638 Ps. 3,092,276 Ps. 582,299 Ps. 4,851,213 Held for trading derivatives Currency forward — 765,166 — 765,166 Debt securities forward — 253 — 253 Interest rate swap — 73,481 — 73,481 Currency swap — 34,682 — 34,682 Currency options — 43,852 — 43,852 Total held for trading derivatives Ps. — Ps. 917,434 Ps. — Ps. 917,434 Hedging derivatives Currency forward — 166,598 — 166,598 Total hedging derivatives Ps. — Ps. 166,598 Ps. — Ps. 166,598 Other account receivables Financial assets in concession contracts — — 2,706,030 2,706,030 Total other account receivables designated at fair value Ps. — Ps. — Ps. 2,706,030 Ps. 2,706,030 Non- financial assets Biological assets — — 104,857 104,857 Investment properties — — 928,566 928,566 Total non- financial assets Ps. — Ps. — Ps. 1,033,423 Ps. 1,033,423 Total assets at fair value on recurring basis Ps. 11,079,989 Ps. 20,555,062 Ps. 4,331,854 Ps. 35,966,905 Liabilities Trading derivatives Currency forward — 815,393 — 815,393 Debt securities forward — 574 — 574 Debt securities futures 52 — — 52 Interest rate swap — 64,500 — 64,500 Currency swap — 31,982 — 31,982 Currency options — 49,937 — 49,937 Total trading derivatives Ps. 52 Ps. 962,386 Ps. — Ps. 962,438 Hedging derivatives Currency forward — 90,726 — 90,726 Interest rate swap — 3,572 — 3,572 Total hedging derivatives Ps. — Ps. 94,298 Ps. — Ps. 94,298 Total liabilities at fair value on recurring basis Ps. 52 Ps. 1,056,684 Ps. — Ps. 1,056,736 December 31, 2018 Level 1 Level 2 Level 3 Total Assets Trading investments Securities issued or secured by Colombian Government Ps. 2,109,574 Ps. 161,068 Ps. — Ps. 2,270,642 Securities issued or secured by other Colombian Government entities 19,606 108,940 — 128,546 Securities issued or secured by foreign Governments — 98,155 — 98,155 Securities issued or secured by central banks — 12,914 — 12,914 Securities issued or secured by other financial entities — 1,218,751 — 1,218,751 Securities issued or secured by non-financial sector entities — 29,122 — 29,122 Others — 4,848 — 4,848 Total trading investments Ps. 2,129,180 Ps. 1,633,798 Ps. — Ps. 3,762,978 Investments in debt securities at fair value through profit or loss Others — 17,523 13,733 31,256 Total investments in debt securities at fair value through profit or loss Ps. 2,129,180 Ps. 1,651,321 Ps. 13,733 Ps. 3,794,234 Investments in debt securities at fair value through OCI Securities issued or secured by Colombian Government 8,208,778 2,316,996 — 10,525,774 Securities issued or secured by other Colombian Government entities 232,312 265,323 — 497,635 Securities issued or secured by foreign Governments 91,315 2,924,241 — 3,015,556 Securities issued or secured by central banks — 1,131,740 — 1,131,740 Securities issued or secured by other financial entities 279,653 3,028,827 — 3,308,480 Securities issued or secured by non-financial sector entities — 209,940 — 209,940 Others — 246,632 — 246,632 Total investments in debt securities at fair value through OCI Ps. 8,812,058 Ps. 10,123,699 Ps. — Ps. 18,935,757 Total investments in debt securities Ps. 10,941,238 Ps. 11,775,020 Ps. 13,733 Ps. 22,729,991 Equity securities Trading equity securities 3,060 2,212,915 456,673 2,672,648 Investments in equity through OCI 935,737 51,224 103,640 1,090,601 Total equity securities Ps. 938,797 Ps. 2,264,139 Ps. 560,313 Ps. 3,763,249 Held for trading derivatives Currency forward — 616,116 1,683 617,799 Debt securities forward — 71 — 71 Interest rate swap — 43,181 — 43,181 Currency swap — 48,546 — 48,546 Currency options — 59,089 — 59,089 Total held for trading derivatives Ps. — Ps. 767,003 Ps. 1,683 Ps. 768,686 Hedging derivatives Currency forward — 30,138 — 30,138 Total hedging derivatives Ps. — Ps. 30,138 Ps. — Ps. 30,138 Other account receivables Financial assets in concession contracts — — 2,488,414 2,488,414 Total other account receivables designated at fair value Ps. — Ps. — Ps. 2,488,414 Ps. 2,488,414 Non- financial assets Biological assets — — 84,206 84,206 Investment properties — — 836,324 836,324 Total non- financial assets Ps. — Ps. — Ps. 920,530 Ps. 920,530 Total assets at fair value on recurring basis Ps. 11,880,035 Ps. 14,836,300 Ps. 3,984,673 Ps. 30,701,008 Liabilities Trading derivatives Currency forward — 583,242 5,779 589,021 Debt securities forward — 2,730 — 2,730 Debt securities futures 32 — — 32 Interest rate swap — 32,380 — 32,380 Currency swap — 148,378 — 148,378 Currency options — 38,764 — 38,764 Total trading derivatives Ps. 32 Ps. 805,494 Ps. 5,779 Ps. 811,305 Hedging derivatives Currency forward — 195,539 — 195,539 Total hedging derivatives Ps. — Ps. 195,539 Ps. — Ps. 195,539 Total liabilities at fair value on recurring basis Ps. 32 Ps. 1,001,033 Ps. 5,779 Ps. 1,006,844 5.2 Items Measured at Fair Value on a Non-Recurring Basis Grupo Aval is required, on a nonrecurring basis to adjust the carrying value of certain assets and liabilities or provide valuation allowances. These assets or liabilities primarily include impaired collateralized loans and non-current assets held for sale. The fair value of these assets which are classified as Level 3 are determined using pricing models, discounted cash flow methodologies, current replacement cost or similar techniques, using internal models or external experts with sufficient experience and knowledge of the real estate market or of assets being appraised. Generally, these appraisals are carried out by references to market data or based on the replacement cost, when sufficient market data is not available. The following table presents Grupo Aval’s assets and liabilities, classified within the fair value hierarchy, which are measured on a nonrecurring basis as of December 31, 2019 and 2018 at fair value less cost of sale: Level 1 Level 2 Level 3 Total December 31, 2019 Impaired collateralized loans Ps. — Ps. — Ps. 870,110 Ps. 870,110 Non- current assets held for sale — — 206,193 206,193 Ps. — Ps. — Ps. 1,076,303 Ps. 1,076,303 Level 1 Level 2 Level 3 Total December 31, 2018 Impaired collateralized loans Ps. — Ps. — Ps. 896,257 Ps. 896,257 Non- current assets held for sale — — 186,714 186,714 Ps. — Ps. — Ps. 1,082,971 Ps. 1,082,971 5.3 Fair Value determination The following tables provide information about valuation techniques and significant inputs when measuring fair value on a recurring basis for assets and liabilities, with fair value hierarchy classification of level 2 or level 3. Level 2 instruments are those which are valued using inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly. The following table provides information about valuation techniques and significant inputs when measuring fair value on a recurring basis for assets and liabilities classified as level 2. Valuation technique Level 2 Significant inputs ASSETS Investments in debt securities at fair value In Colombian Pesos Securities issued or secured by the Colombian Government Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Securities issued or secured by other Colombian Government entities Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Securities issued or secured by other financial entities Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Yield and margin Securities issued or secured by non-financial sector entities Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Others Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Yield and margin In Foreign Currency Securities issued or secured by the Colombian Government Market price Market price (2) Securities issued or secured by other Colombian Government entities Discounted cash flow Theoretical price / estimated price (1) Average price / market price (2) Securities issued or secured by foreign Governments Internal model Discounted cash flows using yields from similar securities outstanding Negotiation price, if there are not negotiations, it is calculated by groups of debt securities according to the Superintendency of Pensions methodologies. Market price Last auction allocation price Market price (2) Market price or price calculated based on benchmarks set by price providers methodologies Securities issued or secured by central banks Internal model Discounted cash flows using yields from similar securities outstanding Market price Market price or price calculated based on benchmarks set by price providers methodologies Securities issued or secured by other financial entities Discounted cash flow Theoretical price / estimated price (1) Internal model Discounted cash flows using yields from similar securities outstanding Market price Market price or price calculated based on benchmarks set by price providers methodologies Bloomberg Generic Market price (2) Securities issued or secured by non-financial sector entities Market price Theoretical price / estimated price (1) Market price (2) Others Discounted cash flow Theoretical price / estimated price (1) Market price Market price or price calculated based on benchmarks set by price providers methodologies Negotiation price, if there are not negotiations, it is calculated by groups of debt securities according to the Superintendency of Pensions methodologies. Last auction allocation price Quoted price Market price (2) Bloomberg Generic Equity securities Corporate stock Market price Estimated prices (1) Investment funds Market price Market value of underlying assets, less management and administrative fees Pension and severance funds (3) Market price Market value of underlying assets, less management and administrative fees Trading derivatives Foreign currency forward Discounted cash flow Underlying asset price Debt securities forward Currency curve by underlying asset Interest rate swap Forward Exchange rates curve of the operation’s currency Cross currency swap Implicit curves of Exchange rates forwards Swap (others) Swap curves by underlying asset Currency options Implicit volatilities matrixes and curves Foreign currency futures Market Market price (2) Spot, rates, days to maturity Debt securities futures Market Market price (2) Spot, rates, days to maturity Hedging derivatives Currency forward Discounted cash flow Curves by currency Foreign currency futures Market Market price (2) LIABILITIES Derivatives held for trading Foreign currency forward Discounted cash flow Underlying asset price Debt securities forward Currency curve by underlying asset Interest rate swap Forward Exchange rates curve of the operation’s currency Currency swap Implicit curves of exchange rates forwards Swap (others) Swap curves by underlying asset Currency options Implicit volatilities matrixes and curves Foreign currency futures Market Market price (2) Spot, rates, days to maturity Debt securities futures Market Market price (2) Spot, rates, days to maturity Hedging derivatives Foreign currency forward Discounted cash flow Underlying asset price Interest rate swap Currency curve by underlying asset Forward Exchange rates curve of the operation’s currency Implicit curves of Exchange rates forwards Swap curves by underlying asset Implicit volatilities matrixes and curves Foreign currency futures Market Market price( 2 ) (1) Estimated Price: A valuation model based on information obtained from a price vendor when it is not able to supply quoted prices (unadjusted) for each security. This model is the basis for the construction of the valuation margin of the securities that is represented on the assigned curve or reference rate. This margin remains constant on the assigned curve or reference rate when calculating the theoretical valuation price. (2) Quoted market prices (i.e. obtained from price vendors) (3) The subsidiary Porvenir S. A. according to Colombian rules is required to invest to 1% of its total assets under management from severance and mandatory pension funds. The following table provides information about valuation techniques and significant unobservable inputs when measuring Level 3 assets and liabilities at recurring fair value. Valuation technique Level 3 Significant unobservable inputs ASSETS Investments in debt securities at fair value In Colombian Pesos Other Discounted cash flow Projected payments flow of mortgage securitizations Equity securities Investments in equity securities (1) - Growth in values after 5 years Discounted cash flow - Net Income - Growth in residual values after 5 years - Discount interest rates - EBITDA Value Comparable Multiples - Multiple of EBITDA - Net income value - Multiple of net income Other financial assets Assets under concession contracts Discounted cash flow - Free cash flow generated solely by assets under concession. - Concession contract’s maturity period - Perpetuity value of the year “n” free-cash flow - Weighted Average Cost of Capital ("WACC"). The detail of valuation process for financial assets in concession arrangements are outlined in (2) Non-financial assets Biological assets Discounted cash flow The processes used to collect data and determine the fair value of biological assets are described in (3) Investment properties Discounted cash flow The processes used to collect data and determine the fair value of investment properties are described in (4) (1) Valuation of equity securities Level 3 Investments with fair value hierarchy level 3 have significant unobservable inputs. Level 3 instruments includes equity instruments, which are not quoted on any stock exchange. Given that observable prices are not available for these securities, Grupo Aval has used valuation techniques as discounted cash flows to obtain fair value. The following table includes a sensitivity analysis of main equity securities by 47,492 as of December 31, 2019 classified at FVOCI level 3. Favorable Unfavorable Methods and Variables Variation impact impact Comparable multiples / Recent transaction price EBITDA Number of times +/-1 x Ps. 2,860 Ps. (2,865) Adjusted net Asset Value Most relevant variable in assets +/-10% 331 (287) Adjusted discounted cash flow Growth in residual values after 5 years +/-1% 303 (270) +/-30 bp 220 (223) Income +/-1% 858 (1,017) +/- 1% anual 371 (378) Discount rates +/- 50 bp 604 (607) Discount interest rates +/- 50 bp 648 (639) Ps. 6,195 Ps. (6,286) (2) Valuation of financial assets under Gas and Energy concession arrangement rights Promigas and subsidiaries, designated the financial assets under concession contracts at fair value, the method used to estimate it is discounted cash flows. The assumptions and inputs used in the calculation of the financial asset estimate were: · The expiration date of each concession contract. · The proportion of the expiry period left of each of the concession contracts in force. · Operational cash flows (only) of the assets under concession. The components of the calculations are the following: · Free cash flow generated solely by assets under concession. · Expiry period of the concession. · Amount in - perpetuity of the Free Cash Flow (FCF) of the year, estimated factoring in a growth in the residual amount between 1% and 3% each year. · Current amount of the residual amount Weighted Average Cost of Capital (WACC *), between 8.64% and 9.09% each year. (*) Nominal WACC calculated under the Capital Asset Pricing Model (CAPM) methodology for each, updated annually. The following variables were used for determining the WACC: · Beta unlevered USA (Oil/Gas Distribution): Damodaran. (Unlevered Beta 0.61, 2018) · Risk Free Rate, Source: Geometric Average 1992‑2018 of American bonds “T-Bonds”. · Market Return, Source: Geometric Average 1992‑2018 Damodaran “Stocks” USA. · Market Premium: Market Return – Risk Free Rate. · Country Risk Premium: Average last 5 years EMBI (Difference between 10‑year Colombian sovereign bonds and 10 years “T-Bonds”). Damodaran. · Emerging Market: Equity Premium Emerging countries (Lambda - Damodaran) Sensitivity analysis The following table includes a sensitivity analysis of the assumptions used by Promigas and its subsidiaries in the calculation of fair value of unconditional transfer rights of gas pipelines to Government entities at the expiration date of the contracts. The value of the financial asset at December 31, 2019 is 2,706,030 and 2,488,414 at 2018, the sensitivity analysis shows their increase or decrease. December 31, 2019 December 31, 2018 Variable +100 bps -100 bps +100 bps -100 bps WACC Ps. (637,556) Ps. 979,942 Ps. (637,463) Ps. 979,778 Perpetuity growth rate (*) 550,652 (387,750) 550,567 (387,696) (*) Perpetuity growth rate in the case of concessions with renewal clauses that are highly likely to be exercised. (3) Biological Assets Fair value of Grupo Aval subsidiaries “biological assets”, which correspond to agricultural activities related to biological assets (animals or plants), is estimated based on internal reports prepared by the companies who own such assets. Fair value of biological assets is determined using valuations performed by experienced internal professionals, using discounted cash flow models. Since no comparable market exist for the biological assets, given their nature, their fair value is determined using discounted cash flows models for each biological asset, based on estimated future quantities of crops, prices, harvesting costs, and maintenance and crop yields, among others, discounted using a risk-free rate adjusted by an appropriate risk premium. See note 15.5. The main assumptions used for determining the fair value of the principal biological assets are as follows: 1. Biological assets growing in rubber crops: The price of natural rubber used to calculate the 2020-2022 cash flows was forecasted based on the average of the last 3 years of the Technically Specified Rubber (TSR20) per ton since December 2016 0.47 (USD 1,542/Ton), in order to reflect the behavior of the commodity for an entire economic cycle. Forecasted prices are adjusted annually based on the expected US inflation rate. Yield per hectare: Based on the crop composition and the planting year of the different clones, we forecasted a stepwise yield per hectare starting in year 7 after plantation and stabilizing after year 10. Tons of rubber per Year hectare per year Year 7 0.60 Year 8 0.90 Year 9 1.40 Year 10 and other 1.90 Costs and administrative expenses: Costs are forecasted considering the different activities incurred during the life of a rubber project. A cost per hectare is forecasted for every key activity such as crop establishment, maintenance of immature plant and maintenance and harvest of mature plants. Discount rate: Based on the data for the “Farming/Agriculture” sector of Damodaran Online’s Global Markets data base, a cost of equity of 11.98% as of December 31, 2019 and 16.75% as of December 31, 2018 was defined. Additionally, a cost of debt of 6.64% as of December 31, 2019 and 6.29% as of December 31, 2018 was defined based on existing debt market conditions. Based on the above, the discount rate, or WACC, was determined to be 10.79% as of December 31, 2019 and 10.74% as of December 31, 2018. 2. Biological assets growing in African palm crops: The price of African palm oil (USD per ton) used to calculate the 2020-2021 cash flows was forecasted based on the average price of palm oil since January 2017 (USD 690.39/Ton), in order to reflect the behavior of the commodity for an entire economic cycle. Forecasted prices are adjusted annually with the expected US inflation rate. The source of information for international prices for Colombia’s market are the following: · Crude palm oil: BURSA MALAYSIA DERIVATIVES (BMD) – Crude Palm Oil Futures (FCPO) – Third Position. It is a relevant international market prices, of easy public access, and is provided by transparent and objective source. · For the price forecast, available future prices (FCPO) were also used as reference. Yield per hectare: Based on the crop composition and the re-planting year of the crops which started in 2006, we forecasted a stepwise yield per hectare for each plantation as follows: Tons of fresh fruit Year per hectare 0 to 3 — 4 4 5 10 6 12 7 22 7 to 18 22 More than 18 36 Weighted average 18 Extraction rate: The oil extraction rate (OER) is a factor that defines the amount of crude palm oil that is produced. The OER varies depending on the age of the plantation, and was forecasted based on the following table: Year Extraction Rate (%) 0 to 3 19 4 23 5 23 6 23 7 23 7 to 18 23 More than 18 21 Weighted average 23 Costs and administrative expenses: Costs are forecast considering the different activities that are incurred during the life of an African palm crop. A cost per hectare is forecast for every key activity such as crop establishment, maintenance and exploitation, harvest and transport. Discount rate: Based on the data for the “Farming/Agriculture” sector of Damodaran Online’s Global Markets data base, a cost of equity of 11.98% as of December 31, 2019 and 16.75% as of December 31, 2018 was defined. Additionally, a cost of debt 6.64% as of December 31, 2019 and 6.29% as of December 31, 2018 was defined based on existing debt market conditions. Based on the above, the discount rate, or WACC, was determined to be 10.79% as of December 31, 2019 and 10.74% as of December 31, 2018 . Sensitivity analysis of Biological Assets at fair value As a result of its investment in Corficolombiana, Grupo Aval´s assets include certain biological assets, that consist primarily of rubber and African palm oil. Grupo Aval does not sells its products in the Rotterdam market or produces/sells African palm oil from Malaysia. However, Grupo Aval has knowledge that the price of rubber and African palm oil traded at both markets is used to determine the price reference of these commodities. If the average price of technically specified rubber (TSR20) and crude palm oil (CPO) had been 5% higher or lower in 2019 and 2018, with all the other variables remaining constant and excluding the effect of hedging activities, Grupo Aval’s profits for the period, before taxes, would have been the following, including only the product growing on bearer plants. Rubber Plantations TSR20 reference price Change in fiscal year- Value of the biological Profits USD/ton end price asset before taxes 1,619 5 % 61,736 10,550 Dec-19 1,542 Baseline scenario 57,698 6,513 1,465 (5) % 53,660 2,475 1,597 5 % 43,609 4,241 Dec-18 1,521 Baseline scenario 41,533 2,164 1,445 (5) % 39,456 88 African Palm Plantations CPO reference price Change in fiscal year- Value of the biological Profits USD/ton end price asset before taxes 725 5 % 35,990 582 Dec-19 690 Baseline scenario 32,509 (2,900) 656 (5) % 29,027 (6,382) 705 5 % 31,272 (7,792) Dec-18 671 Baseline scenario 29,783 (9,281) 638 (5) % 28,293 (10,770) The fair value of biological assets is also affected by different circumstances in the market such as climate, natural disasters and plagues. The subsidiaries that manage biological assets have taken all the necessary precautions to reduce these risks. An analysis of any situation that could compromise the fulfilment of the company´s objectives is carried out by the different technical areas and the potential impact of any deviation is also measured. The result of said analysis is informed to top management to determine, in accordance with the significance of the situation, if they need to be reported to the Board of Directors. (4) Investment properties Investment properties are recognized at fair value, based on a valuation made at each year-end period using, as a basis, independent appraisal expert whose report is obtained and reviewed by management. While in Colombia, the frequency of transactions in the real state sector is low compared to other more developed markets, management believes there are enough references to assess the fair value of investment properties owned by Grupo Aval and its subsidiaries based on comparable market transactions. (See note 15.4) Fire-sales are excluded from the comparable transactions used to estimate the fair-value of investment properties. Management has reviewed the main assumptions used by the independent external appraisers (such as inflation, interest rates, etc.) and believes they are consistent with market conditions at each end of period. However, management believes that the estimation of the fair value of investment properties depends on significant judgment from the independent expert appraisers, and as such, there could be a significant probability that the actual price of sale of a property differs from its fair value. (See note 5.1) 5.4 Transfers between level 1 and level 2 of the fair value hierarchy The following table summarizes the transfer between fair value levels 1 and 2 during 2019 and 2018. In general, transfers between Level 1 and Level 2 in the investment portfolios are due, fundamentally, to changes in the liquidity levels of the securities in the markets. December 31, 2019 Investments in debt Investments in debt securities at FVTPL securities at FVOCI Transfers between: Transfers between: Level 2 to 1 Level 1 to 2 Level 2 to 1 Level 1 to 2 Securities issued or secured by Colombian Government Ps. — Ps. — Ps. 72,451 Ps. 591,093 Securities issued or secured by other Colombian Government entities — 1 — 38,324 Securities issued or secured by other financial entities — — 3,301 119,271 Ps. — Ps. 1 Ps. 75,752 Ps. 748,688 December 31, 2018 Investments in debt Investments in debt securities at FVTPL securities at FVOCI Transfers between: Transfers between: Level 2 to 1 Level 1 to 2 Level 2 to 1 Level 1 to 2 Securities issued or secured by Colombian Government Ps. — Ps. — Ps. 17,668 Ps. 14,081 Securities issued or secured by other Colombian Government entities — — 229,202 — Securities issued or secured by other financial entities — — — 189,013 Ps. — Ps. — Ps. 246,870 Ps. 203,094 There were no transfers of fair values between levels 2 to or from level 3. 5.5 Reconciliation Level 3 of the fair value hierarchy The reconciliation of the balances at the beginning of the period to the closing balances with the fair value measurements classified at Level 3 is shows in the following table. Financial assets Financial asse

CLASSIFICATION OF FINANCIAL ASS

CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES	12 Months Ended
	Dec. 31, 2019
CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES
CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES	NOTE 6 – CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES See accounting policies in Notes 2(2.5). The following table provides a reconciliation of gross amount between line items in the statement of financial position and categories of financial instruments as of December 31, 2019 and 2018. Mandatorily FVOCI – FVOCI – Total December 31, 2019 at debt equity Amortized carrying Assets Note FVTPL instruments instruments Cost amount Cash and cash equivalents 7 Ps. — Ps. — Ps. — Ps. 30,117,236 Ps. 30,117,236 Trading assets 8 9,113,668 — — — 9,113,668 Debt securities 4,673,113 — — — 4,673,113 Equity securities 3,523,121 — — — 3,523,121 Derivative assets 917,434 — — — 917,434 Investment securities 9 10,102 21,608,992 1,328,092 3,053,862 26,001,048 Measured at fair value 10,102 21,608,992 1,328,092 — 22,947,186 Measured at amortized cost — — — 3,053,862 3,053,862 Loans 11 — — — 182,128,114 182,128,114 Other accounts receivable 12 2,706,030 — — 9,282,734 11,988,764 Measured at fair value 2,706,030 — — — 2,706,030 Measured at amortized cost — — — 9,282,734 9,282,734 Hedging derivative assets 10 166,598 — — — 166,598 Total financial assets Ps. 11,996,398 Ps. 21,608,992 Ps. 1,328,092 Ps. 224,581,946 Ps. 259,515,428 Mandatorily FVOCI – FVOCI – Total at debt equity Amortized carrying Liabilities Note FVTPL instruments instruments Cost amount Trading liabilities Derivative liabilities 8 Ps. 962,438 Ps. — Ps. — Ps. — Ps. 962,438 Hedging derivative liabilities 10 94,298 — — — 94,298 Customer deposits 20 — — — 175,491,421 175,491,421 Financial obligations 21 — — — 54,844,576 54,844,576 Total financial liabilities Ps. 1,056,736 Ps. — Ps. — Ps. 230,335,997 Ps. 231,392,733 Mandatorily FVOCI – FVOCI – Total December 31, 2018 at debt equity Amortized carrying Assets Note FVTPL instruments instruments Cost amount Cash and cash equivalents 7 Ps. — Ps. — Ps. — Ps. 28,401,283 Ps. 28,401,283 Trading assets 8 7,204,312 — — — 7,204,312 Debt securities 3,762,978 — — — 3,762,978 Equity securities 2,672,648 — — — 2,672,648 Derivative assets 768,686 — — — 768,686 Investment securities 9 31,256 18,935,757 1,090,601 2,972,616 23,030,230 Measured at fair value 31,256 18,935,757 1,090,601 — 20,057,614 Measured at amortized cost — — — 2,972,616 2,972,616 Loans 11 — — — 176,881,841 176,881,841 Other accounts receivable 12 2,488,414 — — 7,069,120 9,557,534 Measured at fair value 2,488,414 — — — 2,488,414 Measured at amortized cost — — — 7,069,120 7,069,120 Hedging derivative assets 10 30,138 — — — 30,138 Total financial assets Ps. 9,754,120 Ps. 18,935,757 Ps. 1,090,601 Ps. 215,324,860 Ps. 245,105,338 Mandatorily FVOCI – FVOCI – Total at debt equity Amortized carrying Liabilities Note FVTPL instruments instruments Cost amount Trading liabilities Derivative liabilities 8 Ps. 811,305 Ps. — Ps. — Ps. — Ps. 811,305 Hedging derivative liabilities 10 195,539 — — — 195,539 Customer deposits 20 — — — 164,359,451 164,359,451 Financial obligations 21 — — — 51,211,990 51,211,990 Total financial liabilities Ps. 1,006,844 Ps. — Ps. — Ps. 215,571,441 Ps. 216,578,285

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS	12 Months Ended
	Dec. 31, 2019
Disclosure of cash and cash equivalents [Abstract]
Disclosure of cash and cash equivalents [text block]	NOTE 7 – CASH AND CASH EQUIVALENTS Balances of cash and cash equivalents comprise the following as of December 31, 2019 and 2018: December 31, 2019 December 31, 2018 In Colombian Pesos Cash Ps. 4,466,144 Ps. 4,489,637 Deposits in the Colombian central bank 4,755,515 3,794,412 Demand deposits in banks and other financial entities 266,964 559,181 Clearing houses 1,248 3,428 Investments in debt securities maturing in under three months 31,353 2,449 Cash held for specific purposes (1) 50,078 254,280 Ps. 9,571,302 Ps. 9,103,387 In foreign currency Cash 2,186,402 1,955,745 Demand deposits in banks and other financial entities 18,359,532 17,342,151 Ps. 20,545,934 Ps. 19,297,896 Total cash and cash equivalents Ps. 30,117,236 Ps. 28,401,283 (1) Grupo Aval has cash held for specific purpuses related to the collection of tolls in concessions. Grupo Aval´s banking subsidiaries had cash reserves to comply with the mandatory (see note 4.3) amount for time deposits, checking accounts and savings accounts for 16,806,578 and 15,710,055 at December 31, 2019 and 2018, respectively.

TRADING ASSETS AND LIABILITIES

TRADING ASSETS AND LIABILITIES	12 Months Ended
	Dec. 31, 2019
TRADING ASSETS AND LIABILITIES
TRADING ASSETS AND LIABILITIES	NOTE 8 – TRADING ASSETS AND LIABILITIES Balances of trading asset and liabilities comprise the following as of December 31, 2019 and 2018: December 31, December 31, Note 2019 2018 Trading assets Debt securities 8.1 Ps. 4,673,113 Ps. 3,762,978 Equity securities 8.2 3,523,121 2,672,648 Derivative assets 8.3 917,434 768,686 Ps. 9,113,668 Ps. 7,204,312 Trading liabilities Derivative liabilities 8.3 962,438 811,305 Ps. 962,438 Ps. 811,305 Total trading assets and liabilities net Ps. 8,151,230 Ps. 6,393,007 8.1 Trading investments in debt securities The following is the balance at December 31, 2019 and 2018. December 31, December 31, 2019 2018 Securities issued or secured by the Colombian Government Ps. 2,425,760 Ps. 2,270,642 Securities issued or secured by other Colombian Government entities 175,794 128,546 Securities issued or secured by foreign Governments 139,534 98,155 Securities issued or secured by central banks 13,966 12,914 Securities issued or secured by other financial entities 1,850,422 1,218,751 Securities issued or secured by non-financial sector entities 33,942 29,122 Others 33,695 4,848 Total trading debt securities Ps. 4,673,113 Ps. 3,762,978 8.2 Trading investments in equity securities The following is the balance at December 31, 2019 and 2018. December 31, December 31, 2019 2018 In Colombian Pesos Corporate stock Ps. 1,679 Ps. 3,060 Investment funds (1) 1,587,495 1,162,260 Pension and severance funds (2) 1,847,317 1,451,692 Ps. 3,436,491 Ps. 2,617,012 In foreign currency Corporate stock Ps. 34,796 Ps. 32,733 Investment funds 51,834 22,903 Ps. 86,630 Ps. 55,636 Total equity securities Ps. 3,523,121 Ps. 2,672,648 (1) Grupo Aval has restricted Investment Funds related to Concesionaria Nueva Vía al Mar Ps. 49,788 and Concesionaria Vial del Pacífico Ps. 22,444. (2) Pursuant to Colombian rules, the subsidiary Porvenir S. A. is required to directly invest 1% of the total assets of these funds in mandatory severance and pension funds managed by Porvenir. 8.3 Trading derivatives assets and liabilities Trading derivative assets and liabilities comprise the following as of December 31, 2019 and 2018. December 31, 2019 December 31, 2018 Assets Liabilities Assets Liabilities Forward contracts Foreign currency to buy Ps. 30,706 Ps. 750,384 Ps. 599,987 Ps. 22,175 Foreign currency to sell 734,460 65,009 17,811 566,846 Debt securities to buy 150 277 50 — Debt securities to sell 103 298 22 2,730 Subtotal Ps. 765,419 Ps. 815,968 Ps. 617,870 Ps. 591,751 Swap Cross currency 34,682 31,808 48,546 148,378 Interest rate 73,481 64,673 43,181 32,380 Subtotal Ps. 108,163 Ps. 96,481 Ps. 91,727 Ps. 180,758 Futures contracts Debt securities to buy — 52 — 32 Subtotal Ps. — Ps. 52 Ps. — Ps. 32 Options contracts Foreign currency to buy 43,069 977 59,089 — Foreign currency to sell 783 48,960 — 38,764 Subtotal 43,852 49,937 59,089 38,764 Total derivative assets and liabilities trading Ps. 917,434 Ps. 962,438 Ps. 768,686 Ps. 811,305 Derivative instruments contracted by Grupo Aval or its consolidated entities are generally traded in either domestic financial markets or in over-the-counter international markets. Derivative instruments have a net favorable position (asset) or a net unfavorable position (liability) as a result of fluctuations in exchange rates, in interest rates or other variables relating to market conditions. As a result, the aggregate amount of fair values of the assets and liabilities in derivative instruments may vary significantly from time to time. 8.4 Trading assets in debt securities pledged as collateral The following is a list of held-for-trading financial assets that are being used as collateral in repo operations, pledged as collateral for transactions with financial instruments, or pledged to third parties as collateral to secure financial obligations with other banks (See note 21). December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by central banks Ps. 12,454 Ps. 11,533 Securities issued or secured by foreign Governments 53,900 51,055 Securities issued or secured by Colombian Government 533,358 1,027,436 Securities issued or secured by other financial entities 15,775 15,567 Ps. 615,487 Ps. 1,105,591 Pledged as collateral to special entities such as CRCC, BR and BVC (*) Securities issued or secured by Colombian Government Ps. 5,433 Ps. 34,191 5,433 34,191 Ps. 620,920 Ps. 1,139,782 (*) Cámara de Riesgo Central de Contraparte (“CRCC”), Banco de la República (“BR”) and Bolsa de Valores de Colombia (“BVC”)

INVESTMENT SECURITIES

INVESTMENT SECURITIES	12 Months Ended
	Dec. 31, 2019
INVESTMENT SECURITIES
INVESTMENT SECURITIES	NOTE 9 – INVESTMENT SECURITIES Balances of investment securities comprise the following as of December 31, 2019 and 2018: Note December 31, 2019 December 31, 2018 Investments in debt securities mandatorily at FVTPL 9.1 Ps. 10,102 Ps. 31,256 Investments in debt securities at FVOCI 9.2 21,608,992 18,935,757 Investments in debt securities at amortized cost 9.3 3,053,862 2,972,616 Investments in equity securities at FVOCI 9.4 1,328,092 1,090,601 Ps. 26,001,048 Ps. 23,030,230 Loss impairment Investments in debt securities at amortized cost 4.1.5 (737) (71) Ps. (737) Ps. (71) Total investment securities net Ps. 26,000,311 Ps. 23,030,159 9.1 Investments in debt securities mandatorily at FVTPL The following table includes investments on asset-backed securities mandatorily at FVTPL because the contractual cash flows of these securities are not SPPI on the principal outstanding. December 31, 2019 December 31, 2018 Others 10,102 31,256 Total investments in debt securities mandatorily at FVTPL Ps. 10,102 Ps. 31,256 9.2 Investments in debt securities at FVOCI The following table includes investments in debt securities at FVOCI as of December 31, 2019 and 2018 : December 31, 2019 Debt securities Cost Unrealized Gain Unrealized Losses Fair Value ECL Securities issued or secured by Colombian Government Ps. 11,556,588 Ps. 118,746 Ps. (31,392) Ps. 11,643,942 Ps. 3,476 Securities issued or secured by other Colombian Government entities 448,710 17,654 (686) 465,678 482 Securities issued or secured by foreign Governments 4,777,822 219,998 (390) 4,997,430 25,132 Securities issued or secured by central banks 969,832 2,354 (2,091) 970,095 1,210 Securities issued or secured by other financial entities 3,033,397 22,451 (923) 3,054,925 2,850 Securities issued or secured by non-financial sector entities 34,325 515 — 34,840 38 Others 434,719 7,411 (48) 442,082 892 Total debt securities at FVOCI Ps. 21,255,393 Ps. 389,129 Ps. (35,530) Ps. 21,608,992 Ps. December 31, 2018 Debt securities Cost Unrealized Gain Unrealized Losses Fair Value ECL Securities issued or secured by Colombian Government Ps. 10,517,512 Ps. 65,724 Ps. (57,462) Ps. 10,525,774 Ps. 446 Securities issued or secured by other Colombian Government entities 496,936 3,581 (2,882) 497,635 422 Securities issued or secured by foreign Governments 3,042,595 9,209 (36,248) 3,015,556 14,457 Securities issued or secured by central banks 1,133,337 1,058 (2,655) 1,131,740 6,154 Securities issued or secured by other financial entities 3,352,299 3,191 (47,010) 3,308,480 8,623 Securities issued or secured by non-financial sector entities 278,838 156 (69,054) 209,940 68,657 Others 251,878 121 (5,367) 246,632 258 Total debt securities at FVOCI Ps. 19,073,395 Ps. 83,040 Ps. (220,678) Ps. 18,935,757 Ps. 99,017 The following table shows amounts reclassified to profit or loss from OCI before taxes, related to fixed income investments debt securities measured at FVOCI: December 31, 2019 December 31, 2018 Redemptions or sales 232,738 43,574 ECL allowance 53,511 31,809 Total reclassified to profit or loss Ps. 286,249 Ps. 75,383 9.3 Investments in debt securities at amortized cost The following table includes investments in debt securities at amortized cost as of December 31, 2019 and 2018: Debt securities December 31, 2019 December 31, 2018 Securities issued or secured by other Colombian Government entities Ps. 3,029,802 Ps. 2,931,172 Securities issued or secured by foreign Governments 23,043 32,321 Securities issued or secured by other financial entities 1,017 9,123 Total debt securities at amortized cost Ps. 3,053,862 Ps. 2,972,616 The following is a summary of investments in debt securities at amortized cost by maturity dates: December 31, 2019 December 31, 2018 Up to 1 month Ps. 693,328 Ps. 671,047 More than 1 month and no more than 3 months 12,787 12,787 More than 3 months and no more than 1 year 2,347,747 2,287,755 More than 1 year and no more than 5 years — 1,027 Total Ps. 3,053,862 Ps. 2,972,616 9.4 Investments in equity securities at fair value through OCI The following is the balance at December 31, 2019 and 2018. December 31, 2019 Cost Unrealized Gain Unrealized Losses Fair Value In Colombian Pesos Corporate stock Ps. 593,573 Ps. 720,402 Ps. (4,439) Ps. 1,309,536 In foreign currency Corporate stock 12,465 6,091 — 18,556 Total equity securities Ps. 606,038 Ps. 726,493 Ps. (4,439) Ps. 1,328,092 December 31, 2018 Cost Unrealized Gain Unrealized Losses Fair Value In Colombian Pesos Corporate Stock Ps. 593,611 Ps. 476,023 Ps. (3,314) Ps. 1,066,320 In foreign currency Corporate Stock 12,717 11,571 (7) 24,281 Total equity securities Ps. 606,328 Ps. 487,594 Ps. (3,321) Ps. 1,090,601 Variations in fair values fundamentally reflect variations in the performance of companies and market conditions mainly due to changes in interest rates and other economic trends in the country where the investment is held. At December 31, 2019 and 2018 Grupo Aval considers that there is no evidence of deterioration. The details of equity instruments through OCI as of December 31, 2019 and 2018 are as follows. Entity (*) December 31, 2019 December 31, 2018 Empresa de Energia de Bogota S.A. E.S.P. Ps. 1,055,163 Ps. 841,279 Gas Natural S.A. ESP 45,945 43,460 Mineros S.A. 72,638 45,706 Bolsa de Valores de Colombia S.A. 46,817 48,351 Sociedades Portuarias 29,840 28,897 Master Card (**) — 7,526 Others 77,689 75,382 Total Ps. 1,328,092 Ps. 1,090,601 (*) These investments in equity securities have been designated as FVOCI considering that they represent strategic investments for Grupo Aval and therefore, they are not expected to be sold in a foreseeable future. (**) During the second half of 2019, Banco de Occidente carried out the sale of its investment in Master Card Colombia, which led to a profit of Ps. 11,329. Given the investment had been classified as measured at fair value with changes in other comprehensive income, this realized gain was recognized directly in retained earnings and did not affect the result of the period. For the years ended December 31, 2019 and 2018, dividends from these equity investments in the amount of Ps. 84,686 and Ps. 71,487 respectively, were recognized in profit or loss in other income line (see note 30). 9.5 Investment in debt at FVOCI and amortized cost securities pledged as collateral The following is a list of debt securities at FVOCI and amortized cost that are being used as collateral in repo operations, pledged as collateral for transactions with financial instruments, or pledged to third parties as collateral to secure financial obligations with other banks (See note 21). 9.5.1 Investment in debt securities through OCI December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by foreign Governments Ps. — Ps. 202,300 Securities issued or secured by Colombian Government 6,116,290 3,195,548 Securities issued or secured by other Colombian Government entities 24,554 63,605 Securities issued or secured by other financial entities 42,068 57,182 Others 40,536 39,602 Ps. 6,223,448 Ps. 3,558,237 Pledged as collateral in operations with derivative instruments Securities issued or secured by Colombian Government 158,850 1,087 Ps. 158,850 Ps. 1,087 Pledged as collateral to special entities such as CRCC, BR and BVC (*) Securities issued or secured by Colombian Government 439,160 471,579 Ps. 439,160 Ps. 471,579 Other collaterals Securities issued or secured by central banks 167,042 167,634 Ps. 167,042 Ps. 167,634 Ps. 6,988,500 Ps. 4,198,537 (*) Cámara de Riesgo Central de Contraparte (“CRCC”), Banco de la República (“BR”) and Bolsa de Valores de Colombia (“BVC”) 9.5.2 Investment in debt securities at amortized cost December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by other Colombian Government entities Ps. 323,954 Ps. — Ps. 323,954 Ps. — Ps. 323,954 Ps. —

HEDGE ACCOUNTING

HEDGE ACCOUNTING	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about hedges [abstract]
Disclosure of hedge accounting [text block]	NOTE 10 – HEDGE ACCOUNTING In accordance with its risk management policies, Grupo Aval uses hedge accounting to manage foreign exchange risk relating to investments in foreign operations and in forecasted transactions of its subsidiary Promigas, as follows: Hedges of net investment in foreign operations Banco de Bogotá, Banco de Occidente and Promigas are exposed to foreign exchange risk relating to its investments in foreign subsidiaries, which functional currencies are the US dollar. The purpose of hedge accounting is to mitigate and offset any adverse changes resulting from the fluctuation in exchange rate of the Colombian Peso and the functional currency of such investments. The impacts of those movements are reflected in the cumulative translation adjustment in other comprehensive income of the consolidated financial statements. To cover this risk, Grupo Aval hedges its exposure through foreign currency financial liabilities expressed in U.S. dollars and forward contracts for the sale of U.S. dollars. Changes in the fluctuation of the Colombian peso against the U.S. dollar have been as follows: Date Value of USD 1 Variation in pesos December 31, 2017 2,984.00 (16.71) December 31, 2018 3,249.75 265.75 December 31, 2019 3,277.14 27.39 According to the information described above, the following table shows movements of OCI gross of taxes, related to hedges of net investment in foreign operations: Exchange Exchange Translation difference of difference adjustment of financial in forward Net OCI Detail of investment the investments liabilities contracts account Leasing Bogotá Panamá Ps. 101,556 Ps. (56,618) Ps. (46,383) Ps. (1,445) Other subsidiaries and branches Banco de Bogotá 3,638 — (3,935) (297) Occidental Bank Barbados 1,142 (1,142) — — Banco de Occidente Panamá 1,799 (1,799) — — Sociedad Portuaria El Cayao S.A. E.S.P. (740) 740 — — Gases del Pacífico S.A.C. (92) (1,096) — (1,189) Gas Natural de Lima y Callao S.A.C. – Calidda (11,973) 11,973 — — Total Ps. 95,329 Ps. (47,942) Ps. (50,318) Ps. (2,931) According to information described above, the following table contains details of hedging operations carried out to cover foreign denominated equity investments. The analysis shows current amount of OCI gross of taxes: December 31, 2019 Thousands of USD Ps. millions Amount of hedge by Cumulative financial Amount of translation Exchange Exchange liabilities in hedge by adjustment difference of difference in Investment foreign forward of the financial forward Net OCI Detail of investment amount currency contracts investments (1) liabilities (1) contracts account Leasing Bogotá Panamá 4,475,304 (2,067,100) (2,391,651) Ps. 4,230,937 Ps. (1,651,823) Ps. (2,716,214) Ps. (137,100) Other subsidiaries and branches Banco de Bogotá (2) 139,662 — (137,752) 129,616 — (127,333) 2,283 Occidental Bank Barbados 31,027 (31,027) — 25,748 (25,748) — — Banco de Occidente Panamá 38,924 (38,924) — 37,376 (37,376) — — Sociedad Portuaria El Cayao S.A. E.S.P. (3) 26,214 (26,214) — 9,332 (9,332) — — Gases del Pacífico S.A.C. (3) 2,500 (2,500) — 2,302 (3,490) — (1,189) Gas Natural de Lima y Callao S.A.C. – Calidda (3) 131,606 (131,606) — (3,977) 3,977 — — Total 4,845,237 (2,297,371) (2,529,403) Ps. 4,431,333 Ps. (1,723,792) Ps. (2,843,547) Ps. (136,006) December 31, 2018 Thousands of USD Ps. millions Amount of hedge by Cumulative financial Amount of translation Exchange Exchange liabilities in hedge by adjustment difference of difference in Investment foreign forward of the financial forward Net OCI Detail of investment amount currency contracts investments (1) liabilities (1) contracts account Leasing Bogotá Panamá 3,964,051 (2,067,100) (1,896,348) Ps. 4,129,381 Ps. (1,595,205) Ps. (2,669,831) Ps. (135,655) Other subsidiaries and branches Banco de Bogotá (2) 126,380 — (121,116) 125,978 — (123,398) 2,580 Occidental Bank Barbados 23,971 (23,971) — 24,606 (24,606) — — Banco de Occidente Panamá 23,439 (23,439) — 35,577 (35,577) — — Sociedad Portuaria El Cayao S.A. E.S.P. (3) 31,214 (31,214) — 10,072 (10,072) — — Gases del Pacífico S.A.C. (3) 4,000 (4,000) — 2,394 (2,394) — — Gas Natural de Lima y Callao S.A.C. – Calidda (3) 31,649 (19,336) — 7,996 (7,996) — — Total 4,204,704 (2,169,060) (2,017,464) Ps. 4,336,004 Ps. (1,675,850) Ps. (2,793,229) Ps. (133,075) (1) Includes exchange difference hedged (2) Includes Banco de Bogotá Panamá, Banco Bogotá Finance, Ficentro and contributions of foreign branches in Miami, New York and Nassau. (3) Includes only a portion of this investments hedged Hedging with Forward Contracts Forward contracts to sell U.S. dollars have been contracted to hedge part of the net foreign investment that Banco de Bogotá has in Leasing Bogotá Panamá and other foreign subsidiaries. The forward contracts were executed with counterparties from the financial sector and the hedge was documented as a "dynamic hedging strategy", where new forward contracts are signed simultaneously as the previous ones expire. According to IAS 39, changes in the fair value of derivatives exclusively due to exchange rate changes in the peso against the U.S. dollar are registered under “Other Comprehensive Income” in equity. The ineffective part of the hedge is recognized in the statement of income for the period. Hedging with Debt in Foreign Currency in U.S. dollars Debt financial instruments that are not derivatives can be designated as hedging instruments for changes in foreign currency exchange rates. According to this rule, Banco de Bogotá and Banco de Occidente designed debt denominated in U.S. dollar as hedging instruments of their foreign subsidiaries as follows: · Bonds issued by Banco de Bogotá in the international market were designated as hedging instruments of its investment in Leasing Bogotá Panamá amounting US$2,067 million in 2019 and 2018. · Other financial liabilities in the amount of $230 million as December 31, 2019 (US$102 million as of December 31, 2018) were used to hedge part of the net foreign investment that Banco de Occidente and Promigas have in foreign subsidiaries as part of a hedging strategy, by which new obligations are continuously designated as hedging instruments to replace the previous ones as they expire over time. · Between December 21, 2015 and November 2, 2016, financial liabilities designated as hedging instruments described above included an intra-group liability amounting to US$ 500 million that Banco de Bogotá had as a hedging instrument of its investment in Leasing Bogotá Panamá. This operation was eliminated in the consolidation process of Grupo Aval and was excluded from the foreign investment hedge accounting. Starting on May 1st and up to November 2nd, 2016 Grupo Aval designated financial assets in foreign debt securities amounting to US$ 500 million as cash flow hedge, the foreign exchange differences of this intra-group liability were not eliminated in the consolidation process and recorded in Other Comprehensive Income in the amount of 73,708. This amount could be realized in the future as income when the investment in Leasing Bogotá Panamá is sold. On November 2nd, 2016 Banco de Bogotá cancelled the intragroup liability amounting to US$ 500 million which was replaced in the foreign investment hedge accounting with other obligations in foreign currency with third parties. Hedging of Future Transactions In the ordinary course of its operations Promigas S.A. and its subsidiaries receive income in U.S. Dollars derived from the transportation of gas. Promigas and its subsidiaries hedge the exchange risk arising in future transactions of highly probable gas transportation income, entering into forward contracts for the sale of U.S. dollars with financial entities different from the ones consolidated into Grupo Aval. During the years ended December 31, 2019, 2018 and 2017, an exchange difference recognized under “Other Comprehensive Income” as a result of cash flow hedge accounting of income (loss) from these highly probable transactions, was reclassified to profit or loss in the amounts of Ps. 20,066, Ps. (276) and Ps. (26,846) respectively. The following is the summary of Promigas and its subsidiaries open cash flow hedges: December 31, 2019 December 31, 2018 Income in Thousands of USD dollars forecasted 92,611 120,265 Notional amount contracts forward Thousands of USD 92,611 120,265 % hedged 100 % 100 % Fair value in Colombian pesos (874) (13,414) # of contracts 158 1,470 The movement of the accumulated OCI account related to cash flow hedges in Colombian pesos during the years ended on December 31, 2019, 2018 and 2017 is as follows: December 31, 2019 December 31, 2018 December 31, 2017 Balance at the beginning of the year Ps. (14,343) Ps. 5,447 Ps. 7,419 Changes in the fair value of the hedge forward contracts (6,597) (19,513) 24,874 Reclassified to profit or loss 20,066 (276) (26,846) Balance at the end of the year Ps. (874) Ps. (14,343) Ps. 5,447 Testing of Hedge Effectiveness Grupo Aval considers hedging as highly effective if at the beginning and in subsequent periods, the hedging instrument highly offsets changes in fair value or in cash flows attributable to the risk hedged during the period for which the hedging has been designated. The hedging is considered as such if the effectiveness of the hedging is in a range between 80% and 125%. Such effectiveness is assessed by Grupo Aval’s entities at least quarterly and at the end of each accounting period. Grupo Aval has documented the hedging effectiveness of its foreign currency denominated investments based on the portion of the net investment hedged at the beginning of the hedging relationship. Since the net balance of these investments fluctuates during the year, Grupo Aval evaluates the hedging relationship on a daily basis as well as the result of the testing of hedge effectiveness. Hedge Effectiveness with Forward Contracts Grupo Aval applies the method of the forward rate used in forward contracts to evaluate the hedge effectiveness; for such purpose, Grupo Aval measures the hedge ineffectiveness comparing the value of current forward contracts, which serve as hedge, with the change in the value of a hypothetical derivative with the same maturity. Hedge Effectiveness with Debt Instruments in Foreign Currency For debt instruments in foreign currency designated as a hedging instruments, the gain or loss arising from the conversion of the debt to Colombian Pesos is based on the current exchange rate between the U.S. dollar and the Colombian Peso, which is the functional currency of Grupo Aval. If the notional amount of the hedging instrument exactly matches with the portion of the hedged investment in foreign operations, no ineffectiveness is registered in the statement of income. Derivative Financial Instruments for hedging purposes comprise the following: According to information described above, the following table contains the fair value of derivative financial instruments used for hedging: December 31, 2019 December 31, 2018 Item Assets Liabilities Assets Liabilities Forward contracts Foreign currency to buy Ps. 14 Ps. 74,529 Ps. 28,367 Ps. 1,128 Foreign currency to sale 166,584 16,197 1,771 194,411 Subtotal Ps. 166,598 Ps. 90,726 Ps. 30,138 Ps. 195,539 Swap Interest rate — 3,572 — — Subtotal Ps. — Ps. 3,572 Ps. — Ps. — Total hedge derivatives Ps. 166,598 Ps. 94,298 Ps. 30,138 Ps. 195,539

LOANS

LOANS	12 Months Ended
	Dec. 31, 2019
Disclosure of loans and receivables [Abstract]
Disclosure of loans and advances to customers [text block]	NOTE 11 – LOANS 11.1 Loan Portfolio by Product The distribution of the loan portfolio of Grupo Aval by product is shown as follows: December 31, 2019 December 31, 2018 General purpose loans Ps. 68,949,019 Ps. 65,923,472 Personal loans 36,998,746 33,791,703 Mortgages 18,661,389 17,279,362 Credit Cards 16,891,296 15,550,920 Working capital loans 15,476,328 15,192,830 Commercial financial leases 10,348,941 9,858,952 Interbank & overnight funds 2,718,961 7,635,188 Automobile and vehicle loans 5,759,560 5,951,793 Loans funded by development banks 3,546,973 3,222,754 Housing leases 1,560,294 1,312,741 Overdrafts 553,765 481,946 Microcredit 410,320 425,697 Consumer financial leases 252,522 254,483 Gross balance of loan portfolio Ps. 182,128,114 Ps. 176,881,841 Loss allowance loan portfolio (1) (8,185,797) (8,196,187) Net balance of loan portfolio Ps. 173,942,317 Ps. 168,685,654 (1) See loss allowance reconciliations from the opening to the closing balance in note 4.1.5. 11.2 Loan portfolio by maturity The distribution of Grupo Aval´s loan portfolio by contractual maturity period is as follows: December 31, 2019 Up to 1 From 1 to From 3 to More than year 3 years 5 years 5 years Total Commercial Ps. 44,018,321 Ps. 18,223,388 Ps. 12,022,488 Ps. 17,042,522 Ps. 91,306,719 Consumer 16,949,266 11,080,750 10,905,187 20,652,726 59,587,929 Mortgage 325,908 583,177 734,982 17,017,322 18,661,389 Microcredit 225,439 171,325 11,060 2,496 410,320 Financial leasing (*) 2,385,372 3,363,063 2,608,974 3,804,348 12,161,757 Total gross loan portfolio Ps. 63,904,306 Ps. 33,421,703 Ps. 26,282,691 Ps. 58,519,414 Ps. 182,128,114 December 31, 2018 Up to 1 From 1 to From 3 to More than year 3 years 5 years 5 years Total Commercial Ps. 46,119,981 Ps. 18,810,647 Ps. 11,234,938 Ps. 16,384,459 Ps. 92,550,025 Consumer 15,798,783 10,507,521 10,794,506 18,099,771 55,200,581 Mortgage 287,133 504,727 676,978 15,810,524 17,279,362 Microcredit 226,651 182,245 13,345 3,456 425,697 Financial leasing (*) 2,344,468 2,826,293 2,801,147 3,454,268 11,426,176 Total gross loan portfolio Ps. 64,777,016 Ps. 32,831,433 Ps. 25,520,914 Ps. 53,752,478 Ps. 176,881,841 (*) See note 4.1.1 11.3 Interest income by portfolio The interest income of the loan portfolio of Grupo Aval by portfolio is shown as follows: December 31, 2019 December 31, 2018 December 31, 2017 Commercial Ps. 6,810,728 Ps. 6,571,717 Ps. 7,327,525 Consumer 8,914,970 8,220,751 8,034,338 Mortgage 1,524,379 1,329,713 1,183,573 Microcredit 106,062 108,472 113,774 Financial leasing 1,135,028 1,159,962 1,240,757 Total interest income Ps. 18,491,167 Ps. 17,390,615 Ps. 17,899,967 11.4 Financial Leasing portfolio As of December 31, 2019, and 2018 the following table shows the reconciliation between gross investment in financial leasing and the present value of minimum payments to be received in these dates: December 31, 2019 December 31, 2018 Total gross rent payments receivable Ps. 18,103,115 Ps. 17,372,906 Less amounts representing running costs (such as taxes, maintenance, insurances, etc.,) (238) (286) Plus, estimated residual amount of assets given for rental (without guarantee) 22,625 36,166 Gross investment in contracts of financial leasing 18,125,502 17,408,786 Less unrealized financial income (5,963,745) (5,982,610) Net investment in contracts of financial leasing 12,161,757 11,426,176 Loss allowance of net investment in financial leasing Ps. (501,825) Ps. (471,007) The detailed information of gross investment and net investment in financial leasing contracts receivable as of December 31, 2019 and 2018 in each period is as follows: December 31, 2019 Gross investment Net investment Up to 1 year Ps. 2,284,884 Ps. 1,582,650 From 1 to 5 years 8,013,317 5,002,687 More than 5 years 7,827,301 5,576,420 Total Ps. 18,125,502 Ps. 12,161,757 December 31, 2018 Gross investment Net investment Up to 1 year Ps. 2,296,714 Ps. 1,579,195 From 1 to 5 years 6,799,539 4,870,790 More than 5 years 8,312,533 4,976,191 Total Ps. 17,408,786 Ps. 11,426,176 The banks of Grupo Aval grant loans through the modality of financial leasing mainly for the financing of vehicles and computer equipment, generally with terms between 36 and 60 months with a purchase option at the end of the contract, machinery and equipment with terms between 60 to 120 months with a purchase option and for housing leasing with terms between 120 to 240 months transferring the asset at the end of the contract. All these leasing contracts are granted at current market interest rates at inception.

OTHER ACCOUNTS RECEIVABLE, NET

OTHER ACCOUNTS RECEIVABLE, NET	12 Months Ended
	Dec. 31, 2019
Disclosure of other accounts receivables [Abstract]
Disclosure of trade and other receivables [text block]	NOTE 12 – OTHER ACCOUNTS RECEIVABLE, NET Balances of other accounts receivable, net of impairment losses, comprise the following as of December 31, 2019 and 2018: December 31, December 31, Reference 2019 2018 Contract assets 12.1 Ps. 7,034,058 Ps. 5,119,649 Other accounts receivable 12.2 4,954,706 4,437,885 Total other accounts receivable 11,988,764 9,557,534 Loss allowance 4.1.5 (286,463) (256,891) Total other accounts receivable, net Ps. 11,702,301 Ps. 9,300,643 12.1 Contract assets The following table provides information about assets from contracts with customers as of December 31, 2019 and 2018: Contract assets December 31, 2019 December 31, 2018 Financial assets in concession arrangements rights at fair value (1) Ps. 2,706,030 Ps. 2,488,414 Financial assets in concession arrangements rights at amortized cost (1) 4,328,028 2,631,235 Gross balance of other accounts receivable Ps. 7,034,058 Ps. 5,119,649 Loss allowance (2)(3) (2,142) (966) Total contract assets Ps. 7,031,916 Ps. 5,118,683 (1) See note 16 details regarding concession arrangements rights. (2) See reconciliations from the opening to the closing balance of the loss allowance on note 4.1.5 . (3) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C) 12.2 Other accounts receivable The detailed information of other accounts receivable measured at amortized cost, except for prepaid expeses, as of December 31, 2019 and 2018 is as follows: Other accounts receivable December 31, 2019 December 31, 2018 Accounts receivable for goods and services sales in Non-financial sector companies Ps. 1,149,051 Ps. 962,364 Transfers in process 431,595 330,941 Payment in advance 416,764 370,144 Debtors 377,510 406,079 Dormant customer deposits ICETEX (1)(2) 330,996 279,219 Credit card compensations and network compensation 329,267 372,702 Fees, services and advances 302,861 241,147 Commissions 220,298 244,669 Guarantee deposits in foreign currency transactions 188,493 377,751 Conditional contributions 166,750 — Holding and parent establishment 147,617 136,551 Payment in advance to supplier's contract 110,028 151,313 Interest 61,579 52,948 Transfers to the National Treasury (2) 60,487 61,046 Receivable from forward contracts 56,946 130,989 Other taxes 48,537 21,321 Storage services 44,674 40,265 Quota shares retirement pensions 29,613 29,768 Accounts receivable to payment offices 24,857 69,996 Claims to insurance companies 18,670 14,142 Payment in advance for industry and trade taxes 11,615 9,563 Promissory sellers 9,495 20,785 Deductible taxes 6,542 10,234 Dividends 2,041 1,086 Others (4) 408,420 102,862 Gross balance of other accounts receivable Ps. 4,954,706 Ps. 4,437,885 Loss allowance (3) (284,321) (255,925) Other accounts receivable, net Ps. 4,670,385 Ps. 4,181,960 (1) Pursuant to Colombian Law number 1777 of 2016, financial institutions in Colombia since August 1, 2016, must transfer the funds from clients’ in dormant customer deposits to a special fund as a loan to a Colombian Government entity denominated “ICETEX”, and classified as “Other accounts receivable” given it is permanently deemed refundable to any particular client. This Government Entity Fund is responsible for managing the monies funds with the commitment to return them at the time the bank customer account holder requests them. Dormant client’s customer deposits are accounts of savings or current accounts that exceed the 322 UVR (Real Value Units) equivalent to Ps. 270.713 in Colombian pesos, on which no deposit, withdrawal, transfer or, in general, debit or credit movements have been made during an uninterrupted period of three years. (2) It is expected that these assets are realized in more than 12 months. (3) See the loss allowance reconciliations from the opening to the closing balance in note 4.1.5. (4) The table below shows detail of the others. Detail others December 31, 2019 December 31, 2018 Customers Ps. 85,402 Ps. — Value added taxes 82,553 39,098 Joint operations 15,811 — Transactions between ATM´s 15,241 — Deficiency in savings accounts 12,398 6,864 Transitional account 9,631 — Clearance of accounts 5,835 — Chargebacks 5,078 — Transaction fees 4,730 4,731 Joint ventures 4,489 5,172 Operative process 2,486 4,486 SIIF condonations 2,235 2,219 Company merger 1,503 — ACH, PSE, CENIT fees — 4,988 Credit card brands compensations — 3,247 Others 161,028 32,057 Total Ps. 408,420 Ps. 102,862

NON-CURRENT ASSETS HELD FOR SAL

NON-CURRENT ASSETS HELD FOR SALE	12 Months Ended
	Dec. 31, 2019
Disclosure of non-current assets held for sale [Abstract]
Disclosure of non-current assets held for sale and discontinued operations [text block]	NOTE 13 – NON-CURRENT ASSETS HELD FOR SALE The movement of the non-current assets held for sale during the years ended December 31, 2019, 2018 and 2017 is as follows: December 31, 2019 December 31, 2018 December 31, 2017 Balance at the beginning of the year Ps. 186,714 Ps. 101,382 Ps. 259,527 Additions 193,735 180,296 89,216 Assets sold, net (147,760) (52,164) (78,784) Increase / decrease by changes in fair value (1) 2,296 (25,136) (37,818) Reclassifications (2) (29,989) (20,038) (134,795) Exchange gains in foreign currency 1,197 2,374 4,036 Balance at year end Ps. 206,193 Ps. 186,714 Ps. 101,382 (1) Includes at December 2019, Ps. 8,055 by recovery of impairment losses. (2) Includes reclassifications to: I) Investment properties by Ps. (21,722), II) other assets by Ps. (14,980) and III) from Properties, plant and equipment for own use Ps. 6,713 at December 2019; I) Investment properties by Ps. (19,718), II) other assets by Ps. (299) and III) Investments by Ps. (21) at December 2018 and I) Investment properties by Ps. (108,924); II) Investments by Ps. (23,368) and III) Other assets by Ps. (2,503) at December 2017. The following is the detail of the non-current assets held for sale: December 31, 2019 December 31, 2018 Foreclosed assets Movable property Ps. 4,079 Ps. 19,733 Residential real estate 34,162 33,622 Other real estate 146,373 88,569 Ps. 184,614 Ps. 141,924 Assets received from leasing agreements Machinery and equipment 3,777 14,989 Vehicles 104 984 Real estate 6,988 25,060 Ps. 10,869 Ps. 41,033 Other non-current assets held for sale Land 1,225 — Real estate 9,037 3,517 Other 448 240 10,710 3,757 Total non-current assets held for sale Ps. 206,193 Ps. 186,714 Following is the detail of the associated liabilities to assets held for sale: December 31, 2019 December 31, 2018 Commercial accounts payable Ps. 54,834 Ps. 15,876 Total Ps. 54,834 Ps. 15,876 Non-current assets held for sale are primarily assets received through foreclosure from assets pledged as loan collateral. Accordingly, Grupo Aval´s intention is to sell them immediately, and it has departments, processes and special sales programs for that purpose. Foreclosed assets are either sold for cash or financing for their sale is provided to potential buyers under normal market conditions. These are expected to be sold within a period of 12 months subsequent to their classification as assets held for sale. There are options contracts in place for some of these assets. (Note 4.1.8) on credit risk contains information on assets received through foreclosure and sold during the period.

INVESTMENTS IN ASSOCIATES AND J

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES	12 Months Ended
	Dec. 31, 2019
Disclosure of investments in associates and joint ventures [Abstract]
Disclosure of investment in associates and joint ventures [Text Block]	NOTE 14 – INVESTMENTS IN ASSOCIATES AND JOINT VENTURES The detail of the investments in associates and joint ventures is as follows: December 31, 2019 December 31, 2018 Associates Ps. 985,497 Ps. 975,032 Joint ventures 2,465 7,711 Total Ps. 987,962 Ps. 982,743 The following table shows the balances of each investment in associates and joint ventures as of December 31, 2019 and 2018, and Grupo Aval’s ownership interest percentage in those entities: December 31, 2019 December 31, 2018 Ownership Book Ownership Book interest value interest value Associates Gas Natural de Lima y Callao S.A. -Calidda S.A. 40 % Ps. 435,359 40 % Ps. 410,984 Gases del Caribe S.A. E.S.P. 31 % 268,234 31 % 269,185 Credibanco 25 % 200,953 25 % 195,157 Redeban Multicolor S.A. 20 % 22,825 20 % 20,508 A.C.H Colombia S.A. 34 % 17,187 34 % 14,010 Aerocali S.A. 50 % 12,648 50 % 19,157 Colombiana de Extrusión S.A. Extrucol 30 % 12,539 30 % 11,327 Energía Eficiente S.A. 39 % 10,119 39 % 8,252 Servicios de Identidad Digital S.A.S. 33 % 2,352 — % — Metrex S.A. 18 % 2,080 18 % 2,054 Concentra Inteligencia en Energía S.A.S. 29 % 692 24 % 601 ADL Digital Lab SAS 34 % 404 — % — C.I. Acepalma S.A. (*) 0.2 % 105 11 % 5,458 Concesionaria Tibitoc S.A. — % — 33 % 18,339 Ps. 985,497 Ps. 975,032 (*) Grupo Aval has significant influence over C.I. Acepalma S.A. due to its participation in the Board of Directors. On November 2019, 98% of the shares held were sold. December 31, 2019 December 31, 2018 Ownership Book Ownership Book interest value interest value Joint ventures Cfc Sk El Dorado Latam Management Company Ltd (1) 50 % Ps. 1,911 50 % Ps. 6,764 Cfc Sk El Dorado Latam Capital Partner Ltd (1) 50 % 356 50 % 549 Cfc Sk El Dorado Latam Advisory Company S.A.S. (1) 50 % 198 50 % 398 Concesionaria Ruta Del Sol S.A.S. (2) (**) 33 % — 33 % — Ps. 2,465 Ps. 7,711 (**) On December 31, 2018 the investment in Concesionaria Ruta del Sol S.A.S. has been provisioned at 100% by Ps.111,783. All of the associates and joint ventures are domiciled in Colombia, with the exception of Gas Natural de Lima y Callao S.A. – Calidda wich resides in Perú. The main corporate purpose of Grupo Aval´s associates is described as follows: Associate Corporate purpose 1 Gas Natural de Lima y Callao S.A. - Calidda Gas distribution 2 Gases del Caribe S.A. E.S.P. Gas distribution 3 Credibanco S.A. Payment processing 4 Redeban Multicolor S.A. Payment processing 5 A.C.H. Colombia S.A. Financial transactions 6 Aerocali S.A Projects in airport infrastructure 7 Colombiana de Extrusión S.A. - Extrucol Networks and infrastructure 8 Energía Eficiente S.A. Gas distribution 9 Servicios de Identidad Digital S.A.S. Digital services 10 Metrex S.A. Manufacturing and commercialization of industrial equipment 11 Concentra Inteligencia en Energía S.A.S. Gas distribution 12 ADL Digital Lab SAS Tecnology or digital services 13 C.I. Acepalma S.A. Oil palm farming and subproducts 14 Concesionaria Tibitoc S.A. Infrastructure projects Below is the detail of the corporate purpose of significant joint ventures in concession agreements: (1) Different joint businesses executed by Grupo Aval’s subsidiaries with specific purposes wherein the joint business assumes no responsibilities for business results, not requiring significant equity resources from Grupo Aval. (2) Estudios Proyectos del Sol S.A.S. ("Episol"), 100% owned subsidiary of Corficolombiana S.A. carried out an impairment analysis on its investment in Concesionaria Ruta del Sol S.A.S. (CRDS), a company in which it participates in 33% of its share capital, reflecting an adjustment in the amount of Ps.140,691 for 2017. The balance of this investment after the impairment expense amounts to Ps.111,783. In November 2018, according to the analysis carried out internally and taking into account outlines set out in International Financial Reporting Standards, the deterioration of the remaining balance of the investment was recognized through a provision. To date 100% of the investment in the Concessionaire Ruta del Sol SAS has already been fully provisioned. As of December 31, 2019, and 2018, Grupo Aval did not have contingent assets as income receivable that arose from any contractual difference with any concession, other than any tariff recognition. There were also no contingent liabilities for fines or sanctions imposed by the Government in the development of concession contracts for possible contractual breaches. A roll-forward of investments in associates and joint ventures accounts is shown below for the years ended at December 31, 2019, 2018 and 2017: Associates December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 975,032 Ps. 925,823 Ps. 865,410 Change in accounting policy (IFRS 9) — (3,691) — Acquisitions 2,789 — — Participation in the profit or loss of the period 231,693 195,991 170,349 Participation in Other Comprehensive Income (9,061) 22,400 1,135 Dividends received (192,602) (171,899) (107,812) Sale of investments (5,125) — — Entity Liquidation (4,956) — — Allowance for Impairment (225) — — Exchange difference (12,048) 6,408 (3,259) Year-end balance Ps. 985,497 Ps. 975,032 Ps. 925,823 Joint ventures December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 7,711 Ps. 117,191 Ps. 281,237 Participation in the period profit or loss (2,067) 1,724 1,615 Participation in Other Comprehensive Income — — (7) Dividends received (3,310) — — Capitalization — — 87 Allowance for impairment (*) — (111,783) (140,691) Transfers / reclassification — — (12,405) Exchange difference 131 579 — Balance acquired in business combination — — (12,645) Year-end balance Ps. 2,465 Ps. 7,711 Ps. 117,191 (*) Impairment of the investment in the Concesionaria Ruta del Sol S.A.S. joint businesses (CRDS). The condensed financial information of the associates and joint ventures registered based on the equity method is as follows: Associates The following table details the financial information of the associates: When calculating the participation method, the closing financial information is not available, since the associates are in this process, and, therefore, the information of the immediately preceding month for the years 2019 and 2018 is taken. December 31, 2019 Assets Liabilities Equity Income Expenses Net income A.C.H. Colombia S.A. Ps. 86,801 Ps. 35,964 Ps. 50,837 Ps. 103,702 Ps. 72,534 Ps. 31,168 Redeban Multicolor S.A. 231,453 118,474 112,979 254,615 238,215 16,400 Credibanco 373,818 176,118 197,700 282,888 238,143 44,745 Aerocali S.A. 82,107 56,812 25,295 155,643 136,736 18,907 Colombiana de Extrusión S.A. Extrucol 77,724 35,929 41,795 108,772 101,872 6,900 Concesionaria Tibitoc S.A. (*) 56,223 281 55,942 2,459 1,313 1,146 Metrex S.A. 33,408 21,852 11,556 30,561 28,689 1,872 C.I. Acepalma 240,527 193,974 46,553 528,203 520,083 8,120 Gases del Caribe S.A. 2,875,918 1,993,317 882,601 2,040,033 1,761,015 279,018 Cálidda S.A. 3,586,674 2,432,743 1,153,931 2,216,510 1,951,117 265,393 Concentra Inteligencia en Energía S.A.S. 2,829 400 2,429 2,006 1,628 378 Energía Eficiente S.A. 74,985 49,451 25,534 307,435 302,606 4,829 Servicios de Identidad Digital S.A.S. 7,824 769 7,055 1 53 (52) ADL Digital Lab SAS 1,189 — 1,189 — 11 (11) Ps. 7,731,480 Ps. 5,116,084 Ps. 2,615,396 Ps. 6,032,828 Ps. 5,354,015 Ps. 678,813 (*) In December 2019 Concesionaria Tibitoc S.A. disposed of their operation. December 31, 2018 Assets Liabilities Equity Income Expenses Net income A.C.H. Colombia S.A. Ps. 78,878 Ps. 37,437 Ps. 41,441 Ps. 83,612 Ps. 64,067 Ps. 19,545 Redeban Multicolor S.A. 213,133 111,626 101,507 214,360 201,980 12,380 Credibanco 263,521 93,951 169,570 240,489 219,166 21,323 Aerocali S.A. 104,506 66,191 38,315 214,805 205,171 9,634 Colombiana de Extrusión S.A. Extrucol 86,398 48,642 37,756 113,749 108,781 4,968 Concesionaria Tibitoc S.A. 57,420 2,403 55,017 20,468 15,964 4,504 Metrex S.A. 31,482 19,938 11,544 43,468 41,254 2,214 C.I. Acepalma 281,161 232,843 48,318 723,908 717,637 6,271 Gases del Caribe S.A. 2,585,669 1,608,107 977,562 1,938,431 1,646,970 291,461 Cálidda S.A. 2,943,477 1,916,017 1,027,460 2,007,368 1,804,907 202,461 Concentra Inteligencia en Energía S.A.S. 2,560 435 2,125 1,234 1,292 (58) Energía Eficiente S.A. 57,226 36,188 21,038 112,914 109,488 3,426 Ps. 6,705,431 Ps. 4,173,778 Ps. 2,531,653 Ps. 5,714,806 Ps. 5,136,677 Ps. 578,129 Joint ventures The following table details the financial information of the joint ventures: December 31, 2019 Assets Liabilities Equity Income Expenses Net income CFC SK El Dorado Latam Advisory Company S.A.S. Ps. 662 Ps. 267 Ps. 395 Ps. 1,301 Ps. 1,701 Ps. (400) Cfc Sk El Dorado Latam Management Company Ltd. 3,851 28 3,823 1 3,329 (3,328) Cfc Sk El Dorado Latam Capital Partners, Ltd. 736 26 710 (198) 209 (407) Ps. 5,249 Ps. 321 Ps. 4,928 Ps. 1,104 Ps. 5,239 Ps (4,135) December 31, 2018 Assets Liabilities Equity Income Expenses Net income CFC SK El Dorado Latam Advisory Company S.A.S. Ps. 1,077 Ps. 281 Ps. 796 Ps. 1,939 Ps. 1,762 Ps. 177 Cfc Sk El Dorado Latam Management Company Ltd. 13,573 45 13,528 3,697 410 3,287 Cfc Sk El Dorado Latam Capital Partners, Ltd. 1,125 26 1,099 150 126 24 Ps. 15,775 Ps. 352 Ps. 15,423 Ps. 5,786 Ps. 2,298 Ps 3,488

TANGIBLE ASSETS

TANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [abstract]
Disclosure of property, plant and equipment [text block]	NOTE 15 – TANGIBLE ASSETS The movement of the carrying value amounts of tangible assets for the years ended on December 31, 2019, 2018 and 2017 is as follows: For own use (1) Given in operating leases Right of use assets Investment (3) properties Biological assets Total Cost Balance as of January 1, 2017 Ps. 8,388,936 Ps. 7,047 Ps. — Ps. 610,188 Ps. 48,002 Ps. 9,054,173 Purchases or capitalized expenses 470,650 3,102 — 84,036 24,409 582,197 Withdrawals / Sales (4) (374,606) (2,467) — (28,431) (19,775) (425,279) Changes in fair value — — — 46,675 13,503 60,178 Transfers to/from non-current assets held for sale 587 — — 101,469 — 102,056 Effect of movements in exchange rates (65,404) — — — — (65,404) Reclassifications 77,394 — — (30,143) — 47,251 Balance as of December 31, 2017 8,497,557 7,682 — 783,794 66,139 9,355,172 Purchases or capitalized expenses (2) 547,668 1,641 — 61,300 20,900 631,509 Withdrawals / Sales (4) (389,303) (1,539) — (78,684) (23,343) (492,869) Changes in fair value — — — 39,415 20,606 60,021 Transfers to/from non-current assets held for sale 1,335 — — 19,719 — 21,054 Effect of movements in exchange rates 120,766 — — — — 120,766 Reclassifications (37,538) — — 10,780 (96) (26,854) Balance as of December 31, 2018 8,740,485 7,784 — 836,324 84,206 9,668,799 Effects of amendments in accounting policies by rights of use (91,604) — 2,365,889 — — 2,274,285 Purchases or capitalized expenses (2) 671,219 7,468 187,834 116,702 20,559 1,003,782 Withdrawals / Sales (287,264) (310) (80,078) (68,989) (18,822) (455,463) Changes in fair value — — — 19,597 18,914 38,511 Revaluation of investment properties — — — 5,288 — 5,288 Transfers to/from non-current assets held for sale (7,782) — — 21,722 — 13,940 Effect of movements in exchange rates 54,794 — 50,153 — — 104,947 Reclassifications 143,507 (1,671) (4,822) (2,078) — 134,936 Balance as of December 31, 2019 9,223,355 13,271 2,518,976 928,566 104,857 12,789,025 Accumulated Depreciation: Balance January 1, 2017 (2,487,188) (4,883) — — — (2,492,071) Depreciation of the year charged against profit or loss (463,133) (759) — — — (463,892) Withdrawals / Sales (4) 274,804 2,036 — — — 276,840 Effect of movements in exchange rates 20,881 — — — — 20,881 Reclassification (35,531) — — — — (35,531) Balance December 31, 2017 (2,690,167) (3,606) — — — (2,693,773) Depreciation of the year charged against profit or loss (477,260) (1,346) — — — (478,606) Withdrawals / Sales (4) 164,541 1,381 — — — 165,922 Effect of movements in exchange rates (63,058) — — — — (63,058) Reclassification (4,897) — — — — (4,897) Balance December 31, 2018 (3,070,841) (3,571) — — — (3,074,412) Effects of amendments in accounting policies by rights of use 25,446 — (82,351) — — (56,905) Depreciation of the year charged against profit or loss (513,357) (2,552) (323,196) — — (839,105) Withdrawals / Sales 231,892 19 8,302 — — 240,213 Transfers to/from non-current assets held for sale 1,069 — — — — 1,069 Effect of movements in exchange rates (25,950) — 772 — — (25,178) Reclassification (83,564) 1,062 3,055 — — (79,447) Balance December 31, 2019 (3,435,305) (5,042) (393,418) — — (3,833,765) Impairment losses: Balance as of January 1, 2017 (2,499) (88) — — — (2,587) Year impairment charge (4,894) 88 — — — (4,806) Balance as of December 31, 2017 (7,393) — — — — (7,393) Withdrawals / Year impairment charge 1,492 (3) — — — 1,489 Balance as of December 31, 2018 (5,901) (3) — — — (5,904) Withdrawals / Year impairment charge 1,085 (30) — — — 1,055 Balance as of December 31, 2019 (4,816) (33) — — — (4,849) Tangible Assets, net: Balance as of December 31, 2018 Ps. 5,663,743 Ps. 4,210 Ps. — Ps. 836,324 Ps. 84,206 Ps. 6,588,483 Balance as of December 31, 2019 Ps. 5,783,234 Ps. 8,196 Ps. 2,125,558 Ps. 928,566 Ps. 104,857 Ps. 8,950,411 (1) Only includes assets for own use different than assets given in operating lease (see note 15.2). (2) The total of purchases for own use, includes at December 31, 2019 Ps. 329 and Ps. 325 at December 31, 2018 for capitalization of intangible (3) The cost includes fair value. The total of purchases of investment properties, includes at December 31, 2019 Ps. 114,331; Ps. 6,895 at December 31, 2018 and Ps. 8,219 at December 31, 2017, of assets received in total or partial settlement of the payment obligations of debtors. (4) The total of Withdrawals includes Ps. (114,099) in Own Use, Ps. 3,064 in investment properties and Ps. (4,225) in biological assets, from the liquidation of “Pizano” at December 31, 2018 and Ps. (30,440) in Own Use of the liquidation of “Consorcio Consol” at December 31, 2017. 15.1. Tangible assets for own use The following is the detail of the balance at December 31, 2019 and 2018, by type: Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2019 Land Ps. 1,007,388 Ps. — Ps. (4,279) Ps. 1,003,109 Buildings 2,770,341 (639,060) — 2,131,281 Office equipment and accessories 1,069,621 (740,455) (284) 328,882 Information technology equipment 2,028,137 (1,434,889) — 593,248 Vehicles 135,334 (70,283) — 65,051 Equipment and machinery 1,397,337 (267,216) (253) 1,129,868 Silos 8,613 (6,718) — 1,895 Warehouses 62,002 (33,006) — 28,996 Improvements in leaseholds properties 410,224 (229,969) — 180,255 Construction in progress 96,576 — — 96,576 Bearer plants 237,782 (13,709) — 224,073 Balance as of December 31, 2019 Ps. 9,223,355 Ps. (3,435,305) Ps. (4,816) Ps. 5,783,234 Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2018 Land Ps. 1,011,018 Ps. — Ps. (3,742) Ps. 1,007,276 Buildings 2,652,100 (569,741) — 2,082,359 Office equipment and accessories 1,013,974 (684,617) (262) 329,095 Information technology equipment 1,725,795 (1,260,973) — 464,822 Vehicles 134,417 (70,826) (35) 63,556 Equipment and machinery 1,355,555 (222,139) (1,862) 1,131,554 Silos 8,613 (5,739) — 2,874 Warehouses 44,416 (26,679) — 17,737 Improvements in leaseholds properties 381,158 (220,939) — 160,219 Construction in progress 185,264 — — 185,264 Bearer plants 228,175 (9,188) — 218,987 Balance as of December 31, 2018 Ps. 8,740,485 Ps. (3,070,841) Ps. (5,901) Ps. 5,663,743 15.2 Tangible assets given in operating lease: The following is movement of carrying value amounts of the balance to as of December 31, 2019 and 2018, by type: Accumulated Impairment Carrying December 31, 2019 Cost depreciation loss amount Equipment, furniture and office equipment Ps. — Ps. — Ps. — Ps. — Computing equipment 8,758 (3,321) — 5,437 Vehicles 3,061 (1,365) — 1,696 Mobilization equipment and machinery 1,452 (356) (33) 1,063 Balance as of December 31, 2019 Ps. 13,271 Ps. (5,042) Ps. (33) Ps. 8,196 Accumulated Impairment Carrying December 31, 2018 Cost depreciation loss amount Equipment, furniture and office equipment Ps. 98 Ps. (98) Ps. — Ps. — Computing equipment 4,041 (1,641) 1 2,401 Vehicles 3,176 (1,648) (4) 1,524 Mobilization equipment and machinery 469 (184) — 285 Balance as of December 31, 2018 Ps. 7,784 Ps. (3,571) Ps. (3) Ps. 4,210 Below is a summary of the minimum lease payments to be received in the next years based on assets given in operating lease to December 31, 2019 and 2018: December 31, December 31, 2019 2018 Less than a year Ps. Ps. More than a year, less than 5 Total Ps. Ps. 15.3 Right-of-use assets : The following is movement of carrying value amounts of the balance to as of December 31, 2019 and 2018, by type: Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2019 Land Ps. 27,411 Ps. (1,210) Ps. — Ps. 26,201 Buildings 2,028,767 (270,450) — 1,758,317 Office equipment and accessories 73 (27) — 46 Information technology equipment 89,818 (16,313) — 73,505 Vehicles 74,410 (19,221) — 55,189 Equipment and machinery 183,936 (69,194) — 114,742 Warehouses 114,561 (17,003) — 97,558 Balance as of December 31, 2019 Ps. 2,518,976 Ps. (393,418) Ps. — Ps. 2,125,558 15.4 Investment properties The following table summarizes investment properties as of December 31, 2019 and 2018: Accumulated adjustments to fair December 31, 2019 Cost value Carrying amount Land Ps. 446,012 Ps. 194,289 Ps. 640,301 Buildings 238,485 49,780 288,265 Balance as of December 31, 2019 Ps. 684,497 Ps. 244,069 Ps. 928,566 Accumulated adjustments to fair December 31, 2018 Cost value Carrying amount Land Ps. 371,087 Ps. 198,252 Ps. 569,339 Buildings 215,712 51,273 266,985 Balance as of December 31, 2018 Ps. 586,799 Ps. 249,525 Ps. 836,324 The following amounts have been recognized in the Consolidated Statement of Income during the years ended on December 31, 2019, 2018 and 2017 in relation to investments properties: December 31, December 31, December 31, 2019 2018 2017 Income from rents Ps. 10,289 Ps. 10,370 Ps. 11,992 Direct operating expenses deriving from property investments which create income from rent (1,929) (1,486) (1,053) Direct operating expenses deriving from property investments which do not create income from rent (6,211) (5,112) (4,239) Ps. 2,149 Ps. 3,772 Ps. 6,700 15.5 Biological Assets Following is the detail of the biological assets by type: December 31, 2019 December 31, 2018 African palm In production (at fair value) Ps. 32,509 Ps. 29,783 Rubber plantations In production (at fair value) 57,698 41,533 Other (1) 14,650 12,890 Total Ps. 104,857 Ps. 84,206 (1) Includes short-term crops and fish farming measured at cost by Ps. 9,081 at December 31, 2019 and Ps.7,633 at December 31, 2018. During the years ended on December 31, 2019, 2018 and 2017, Grupo Aval recorded in its statement of income the following income and expenses related to biological assets: December 31, December 31, December 31, 2019 2018 2017 Sales of biological goods Ps. 107,590 Ps. 88,382 Ps. 43,788 Changes in fair value of biological assets 18,914 20,606 13,503 Subtotal 126,504 108,988 57,291 Costs and expenses (93,626) (73,981) (37,313) Depreciation of bearer plants (5,249) (11,816) (3,405) General administration costs and sales (9,260) (5,390) (7,278) Financial costs (6,221) (5,599) (4,136) Subtotal (114,356) (96,786) (52,132) Total net income Ps. 12,148 Ps. 12,202 Ps. 5,159 The following is the detail of the hectares sown by subordinates of Grupo Aval in the process of growth and in the production process as of December 31, 2019 and 2018: December 31, December 31, 2019 2018 Areas planted in hectares In production process 8,936 8,534 The following is the detail of hectares for expected years of production: December 31, December 31, 2019 2018 Areas planted in hectares: Less than 1 year 435 1,639 Between 1 and 5 years 4,751 3,194 Between 5 and 10 years 1,610 1,966 More than 10 years 2,140 1,735 Total 8,936 8,534

CONCESSION ARRANGEMENTS RIGHTS

CONCESSION ARRANGEMENTS RIGHTS	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about service concession arrangements [abstract]
Disclosure of service concession arrangements [text block]	NOTE 16 – CONCESSION ARRANGEMENTS RIGHTS The following is the balance of the assets in concession agreements registered in the Group as of December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Financial assets at fair value (2) Ps. 2,706,030 Ps. 2,488,414 Financial asset at amortized cost net (1) (2) 4,325,886 2,630,269 Intangible asset 7,521,488 5,514,481 Total assets in concession contracts Ps 14,553,404 Ps. 10,633,164 (1) At December 31, 2019 and 2018, the balance of the financial asset at amortized cost includes an impairment expense of Ps. 1,176 and Ps. 966 respectly, see note 16.1. (2) See note 12, other accounts receivables. 16.1 Financial Assets in Concession Arrangements The following table shows the changes in financial assets in concession arrangements registered in Grupo Aval’s subsidiaries for the years ended at December 31, 2019 and 2018: Gas and Energy Infrastructure Total Balance at December 31, 2016 Ps. 2,072,674 Ps. 203,241 Ps. 2,275,915 Additions or new concession arrangements — 698,749 698,749 Collections during the year — (162,271) (162,271) Adjustment to fair value credited to income 209,937 — 209,937 Accrued interest — 46,299 46,299 Balance at December 31, 2017 Ps. 2,282,611 Ps. 786,018 Ps. 3,068,629 Impact of the adoption of IFRS 15 (1) — 463,622 463,622 Impact of the adoption of IFRS 9 (1) — (568) (568) Balance at January 01, 2018 Ps. 2,282,611 Ps. 1,249,072 Ps. 3,531,683 Additions or new concession arrangements — 1,361,261 1,361,261 Collections during the year — (22,803) (22,803) Adjustment to fair value credited to income 205,803 — 205,803 Accrued interest — 43,137 43,137 Impairment expense — (398) (398) Balance at December 31, 2018 Ps. 2,488,414 Ps. 2,630,269 Ps. 5,118,683 Additions or new concession arrangements — 1,495,035 1,495,035 Collections during the year — (23,674) (23,674) Adjustment to fair value credited to income 217,616 — 217,616 Accrued interest — 225,432 225,432 Impairment expense — (1,176) (1,176) Balance at December 31, 2019 Ps. 2,706,030 Ps. 4,325,886 Ps. 7,031,916 (1) See note 2 (2.4. (B and C)). 16.2 Intangible Assets in Concession Arrangements The following table shows a roll-forward of the main concession arrangements in Grupo Aval’s subsidiaries under intangible assets during years ended at December 31, 2019, 2018 and 2017. Cost Gas and energy Infrastructure Total At December 31, 2016 Ps. 2,369,931 Ps. 1,079,798 Ps. 3,449,729 Additions 193,489 417,420 610,909 Reclassification to PPE (14,408) — (14,408) Withdrawals (1,915) (1,590) (3,505) Effect of movements in exchange rates (1,041) — (1,041) At December 31, 2017 Ps. 2,546,056 Ps. 1,495,628 Ps. 4,041,684 Impact of the adoption of IFRS 15 (3) — 619,949 619,949 Balance at January 01, 2018 Ps. 2,546,056 Ps. 2,115,577 Ps. 4,661,633 Additions 428,375 1,617,306 2,045,681 Reclassification to PPE 25,840 — 25,840 Withdrawals (1,250) (124) (1,374) Effect of movements in exchange rates 33,993 — 33,993 At December 31, 2018 Ps. 3,033,014 Ps. 3,732,759 Ps. 6,765,773 Additions 760,982 1,525,013 2,285,995 Reclassification to PPE 407 — 407 Withdrawals (2) (10,299) (763,518) (773,817) Effect of movements in exchange rates 1,434 — 1,434 At December 31, 2019 Ps. 3,785,538 Ps. 4,494,254 Ps. 8,279,792 Accumulated Amortization Gas and energy Infrastructure Total At December 31, 2016 Ps. (251,731) Ps. (392,684) Ps. (644,415) Amortization of the year (119,549) (164,940) (284,489) Reclassification to PPE 841 — 841 Withdrawals 630 — 630 Effect of movements in exchange rates (84) — (84) At December 31, 2017 Ps. (369,893) Ps. (557,624) Ps. (927,517) Amortization of the year (129,509) (170,701) (300,210) Reclassification to PPE (665) — (665) Withdrawals (1) 147 (21,230) (21,083) Effect of movements in exchange rates (1,817) — (1,817) At December 31, 2018 Ps. (501,737) Ps. (749,555) Ps. (1,251,292) Amortization of the year (140,488) (108,216) (248,704) Reclassification to PPE 7 — 7 Withdrawals (1) (2) 2,964 741,226 744,190 Effect of movements in exchange rates (473) — (473) At December 31, 2019 Ps. (639,727) Ps. (116,545) Ps. (756,272) Impairment loss Gas and energy Infrastructure Total At December 31, 2018 Ps. — Ps. — Ps. — Impairment charge — (2,032) (2,032) At December 31, 2019 Ps. — Ps. (2,032) Ps. (2,032) Total Intangible Assets Gas and energy Infrastructure Total Balance at December 31, 2016 Ps. 2,118,200 Ps. 687,114 Ps. 2,805,314 Cost 176,125 415,830 591,955 Amortization (118,162) (164,940) (283,102) Balance at December 31, 2017 Ps. 2,176,163 Ps. 938,004 Ps. 3,114,167 Impact of the adoption of IFRS 15 (3) — 619,949 619,949 Balance at January 01, 2018 Ps. 2,176,163 Ps. 1,557,953 Ps. 3,734,116 Cost 486,958 1,617,182 2,104,140 Amortization (131,844) (191,931) (323,775) Balance at December 31, 2018 Ps. 2,531,277 Ps. 2,983,204 Ps. 5,514,481 Cost 752,524 761,495 1,514,019 Amortization (2) (137,990) 633,010 495,020 Impairment loss — (2,032) (2,032) Balance at December 31, 2019 Ps. 3,145,811 Ps. 4,375,677 Ps. 7,521,488 (1) In infrastructure, Proyectos de Infraestructura PISA S.A. includes of Ps. 21,884 for 2019 and Ps. 21,230 for 2018 that was offset with a liability outstanding with Agencia Nacional de Infraestructura – (ANI), due to the liquidation of the capacity records with the ANI. (2) As of December 31, 2019, Concesionaria Vial de los Andes - Coviandes finished its operation and maintenance stage. The infrastructure was returned to the grantor. (3) See note 2 (2.4 (B and C)). The following is a summary of the main concession contracts granted to Grupo Aval’s subsidiaries as of December 31, 2019 Year of Concession Contract construction % progress Concession Owner Business and country Objective Current stage date start of construction end date Gas and Energy Surtigas S.A. E.S.P. Gas and Energy Colombia Purchase, storage, packaging and distribution of gases derived from hydrocarbons. Operation 03/1984 to 04/1994 1984 100 % 2034 to 2045 Transmetano E.S.P. S.A. Gas and Energy Colombia Construction, operation and maintenance of gas transportation systems. Operation 08/1994 1996 100 % 2044 Promigas S.A. E.S.P. Gas and Energy Colombia Purchase, sale, transportation, distribution, exploitation and exploration of natural gas, oil and hydrocarbons in general. Operation 05/1976 to 11/1994 1976 100 % 2026 to 2044 Promioriente S.A. E.S.P. Gas and Energy Colombia Construction, operation and maintenance of gas pipelines. Operation 09/1995 1995 100 % 2045 Gases de Occidente S.A. E.S.P. Gas and Energy Colombia Transportation and distribution of liquefied petroleum gas and natural gas. Operation 08/1998 1998 100 % 2047 Compañía Energética de Occidente S.A. E.S.P. Gas and Energy Colombia Administrative, operational, technical and commercial management for the provision of electrical energy. Construction and Operation 01/2010 2010 38.33 % 2035 Gases del Pacífico S.A.C. Gas and Energy Perú Purchase, sale, production, commercialization of energy in any of its forms. Construction and Operation 10/2013 2015 62.00 % 2034 Gases del Norte del Perú S.A.C. Gas and Energy Perú Construction and distribution service of natural gas. Construction 11/2019 2020 — % 2051 Sociedad Portuaria El Cayao S.A. E.S.P. Gas and Energy Colombia Construction, maintenance and administration of ports. Operation 07/2015 2015 100 % 2035 Infrastructure Proyectos de Infraestructura S.A. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 12/1993 1994 100 % 2033 Concesionaria Vial de los Andes S.A.S. - Coviandes Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Reversion 08/1994 1996 100 % 2019 Concesiones CCFC S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 06/1995 2001 100 % 2024 Concesionaria Panamericana S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 12/1997 2009 100 % 2035 Concesionaria Vial del Pacífico S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 09/2014 2018 33.85 % 2040 Concesionaria Nueva Vía del Mar S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Preconstruction 01/2015 N/A 3.85 % 2044 Concesionaria Vial Andina S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 06/2015 2016 64.81 % 2050 Concesionaria Vial Del Oriente S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 07/2015 2018 23.13 % 2038

GOODWILL

GOODWILL	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about goodwill [Abstract]
Disclosure of goodwill [text block]	NOTE 17 – GOODWILL The following is the roll-forward of the goodwill balance during the years ended December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Balance at the beginning of the year Ps. 7,318,594 Ps. 6,901,056 Impairment charge (13,041) — Effect of movements in exchange rates (1) 43,034 417,538 Balance at the end of the year Ps. 7,348,587 Ps. 7,318,594 (1) The foreign exchange adjustment is attributable to Leasing Bogotá Panamá The following is the detail of goodwill assigned by cash generating units (CGU) representing the lowest identifiable level within Grupo Aval and monitored by management. In addition the values of goodwill are not greater than the identified business’ segments: Goodwill carrying amount December 31, December 31, CGU 2019 2018 Leasing Bogotá Panamá (2) Ps. 5,148,935 Ps. 5,105,901 Banco de Bogotá S.A. over Megabanco (1) 465,905 465,905 Promigas S.A. and Subsidiaries 169,687 169,687 Concesionaria Panamericana S.A.S. 106,874 119,915 Concesionaria Covipacífico S.A.S. 102,376 102,376 Hoteles Estelar S.A. 6,661 6,661 Banco de Occidente S.A. over Banco Unión (1) 22,724 22,724 Banco Popular S.A. 358,401 358,401 Banco de Bogotá S.A. 301,222 301,222 Banco de Occidente S.A. 127,571 127,571 Sociedad Administradora de Pensiones y Cesantías Porvenir S.A. 538,231 538,231 Ps. 7,348,587 Ps. 7,318,594 (1) Goodwill recognized as a result of mergers into these entities. (2) The change presented corresponds to the foreign exchange adjustment attributable to Leasing Bogotá Panamá. The recoverable amount of each cash generating unit was determined based on market values of banks, listed in stock exchanges and a recoverable amount is determined by a study for those not listed in stock exchanges. Such calculations used cash flow projections, covering periods from 5 to 20 years. Cash flows subsequent to these periods were extrapolated using estimated growth rates for such flows, not exceeding the average of the economic sector where the cash generating unit operates. Impairment At date of completion, the carrying amount of Concesionaria Panamericana S.A.S’s valuation was Ps. 190,567 and its recoverable amount of Ps. 177,526 which generates a recognition of impairment of Ps. 13,041 attributable to goodwill on this concession. The main assumptions and circumstances taken into account, for the recognition of this impairment were: • The valuation horizon of the model is given by the remaining term of the concession, which has an end date in May 2035. • Because the concession has a certain period of execution, the goodwill has a “determined useful life” and in that sense it was expected that in the last years of the administration and operation of the concession the paid goodwill began its deterioration process. • The Concessionaire's income is made up of tolls, as well as future validity for additional works executed. Tolls revenue was updated by verifying the traffic study (actual traffic validation), considering the category of vehicles and incorporating the percentage of growth expected for each year of the concession. Additionally, tolls rates were updated due to the variation observed in the CPI (in some cases additional growth is incorporated). Revenues for the future validities, agreed in constant pesos in the concession contract, are updated with the variation of the CPI corresponding to the period in which they are received by the concessionaire. • About administration and operation costs and expenses, internal projections were used, considering compliance with contractual obligations, as well as service level indicators. • Under the above assumptions, the recoverable amount at December 31, 2019 was less than the carrying amount of the investment cost including goodwill. Below is a detail of the most significant values that comprise Goodwill, representing more than 80% of the Goodwill balance detailed above: A. Leasing Bogotá S.A. Panamá On December 9, 2010, Banco de Bogotá S.A. acquired control of BAC Credomatic Inc (BAC COM) through its subsidiary Leasing Bogotá S.A. Panamá (LBP), which is the Panamanian company that executed the purchase agreement. BAC Credomatic Inc. (BAC COM), a company incorporated to do business under the laws of the British Virgin Islands, is the owner of Banco BAC International Bank, Inc. and the operations of BAC Credomatic Inc. (BAC) in Central America. With the acquisition of BAC COM, through LBP, BAC’s corporate structure now is controlled by Banco de Bogotá S.A., which is controlled, in turn, by Grupo Aval. Goodwill was generated and recognized as a result of that operation. Banco de Bogotá was authorized by the Superintendency of Finance to make this acquisition, through its subsidiary Leasing Bogotá Panamá, as indicated in Official Notice 2010073017‑ 048 dated December 3, 2010. Afterwards, (98.92%) of the shares of Banco Bilbao Vizcaya Argentaria S.A. Panamá (BBVA Panamá, now BAC de Panamá) were acquired by Banco de Bogotá, through its subsidiary Leasing Bogotá Panamá, under authorization from the Superintendency of Finance, as per Official Notice 2013072962‑052 dated December 12, 2013. Also, (100.00%) of the shares of Banco Reformador de Guatemala (Reformador) and of Transcom Bank Limited in Barbados (Transcom) were acquired, and both banks were stated as Grupo Financiero Reformador de Guatemala. The Superintendency of Finance authorized Banco de Bogotá to acquire these banks, through its subsidiaries Credomatic International Corporation and BAC Credomatic Inc., as per Official Notice 2013068082‑062 dated December 3, 2013. Finally, during 2015, Credomatic International Corporation, a subsidiary of the company, acquired 100% of the issued and outstanding shares of COINCA Corporation Inc. (COINCA) and Corporación Tenedora BAC Credomatic S.A., and an indirect subsidiary of the Company, acquired 100% of the issued and outstanding shares of Medios de Pago MP S.A., domiciled in Costa Rica, generating with the latter an additional capital gain of Ps. 853,401 that was included in the consolidated financial statements of the Bank in the first quarter of 2016. The latest valuation update for the groups of cash generating units to which this goodwill was allocated was done by an external adviser and reviewed by Management in January 2020, based on the financial statements of BAC Credomatic at September 30, 2019. The conclusion was that there are no situations that imply a possible impairment, given that the recoverable amount of the groups of cash generating units associated with goodwill was Ps. 21,490,101 exceeds the book value by Ps. 6,878,995. The following table shows the averages of the main assumptions used in the reports on impairment of the cash-generating units with allocated goodwill, based on the impairment assessments done on the indicated dates. Although the valuation exercise includes a 10 year projection, the following tables only show the first 5 years as, following the first year of projection, rates are generally stable with no significant variations. December 31, 2019 2020 2021 2022 2023 2024 Lending rate on the loan portfolio and investments % 11.4 % 11.4 % 11.3 % 11.3 % Borrowing rate 2.8 % 2.8 % 2.8 % 2.8 % 2.8 % Growth in income from commissions (0.2) % 6.6 % 8.4 % 8.7 % 8.7 % Growth in expenses 5.9 % 5.5 % 5.4 % 5.7 % 6.2 % Discount rate after taxes 11.5 % Growth rate after ten years 3.0 % December 31, 2018 2019 2020 2021 2022 2023 Lending rate on the loan portfolio and investments 11.4 % 11.4 % 11.4 % 11.3 % 11.3 % Borrowing rate 2.9 % 3.0 % 3.0 % 3.0 % 3.0 % Growth in income from commissions 2.0 % 7.7 % 8.0 % 7.8 % 7.7 % Growth in expenses 5.3 % 6.2 % 5.8 % 6.0 % 6.3 % Discount rate after taxes 11.8 % Growth rate after ten years 3.0 % A 10-year projection was made to evaluate goodwill impairment, considering the business will have matured and the flow of funds will have stabilized once this period has elapsed. In turn, macroeconomic assumptions as well as those for BAC Credomatic’s business in each of the countries where it operates were used for the projection, so as to reflect the reality that each market provides to the CGUs as a whole. The averages of the main premises used are listed in the foregoing tables, including the variables for all the countries where BAC Credomatic Inc. operates. The following is description of that process: · Lending rates on loans and investments were projected based on historical data and on the expectations of management in each of the countries where BAC Credomatic Inc. operates, considering the competitiveness of the different services in their respective markets and the growth strategies for each segment. The projection on US Federal Reserve rates was taken into account as well, since these rates serve as a basis for international banking rates. · Growth in income from commissions was projected in line with the growth in BAC Credomatic´s active portfolio, which allows for greater income through products and services like insurance, memberships. commissions on foreign currency exchange and also the implementation of new services among others. Competitive markets were also considered in the projected time horizon elapsed. · Although the functional or reporting currency of the business is that of each country in the region where BAC Credomatic Inc´s. subsidiaries operate, the future flows of funds have been converted into nominal U.S. dollars in each projected period, discounted at a nominal rate in U.S. dollars, net of income tax, estimated as "Ke". A discount rate in U.S. dollars is used, given that a consistent discount rate in the respective local currencies cannot be estimated because of the lack of necessary data. · The discount rate has been estimated in light of the risk profile of each of the markets where BAC Credomatic Inc. operates. · To estimate the terminal value, the normalized flow of funds, adjusted according to expectations for its growth, was projected in perpetuity. This projection does not exceed the average long-term rate of growth for the economies in each of the countries where BAC operates. Consequently, an annual growth rate of 3.0% was estimated for the long term. The discount rate after taxes used to discount the dividend flows reflects the specific risks relative to the CGU and the markets where BAC Credomatic operates, as mentioned earlier. Had the USD denominated estimated 11.5% discount rate been 1.0% higher; it would not have been necessary to reduce the book value of goodwill, since the value-in-use of the cash-generating units associated with goodwill would have been Ps. 18,763,763, still exceeding book value as of December 31, 2019 of Ps. 14,611,105. B. Cash-generating units inside Banco de Bogotá Goodwill was generated in 2006 with the acquisition of 94.99% of the shares of Banco de Crédito y Desarrollo Social – MEGABANCO S.A. and later merged with Banco de Bogotá. This operation was authorized by the Office of the Superintendency of Finance in Resolution No. 917 dated June 2, 2006. That goodwill was allocated to the groups of cash-generating units inside Banco de Bogotá involved in the following lines of business: Share (%) Value Commercial 32.7 % Ps. 152,539 Consumer 30.8 % 143,287 Payroll installment loans 27.0 % 125,934 Vehicles 6.7 % 31,304 Microcredit 2.8 % 12,841 Total 100.0 % Ps. 465,905 The latest valuation update for the business lines of the groups of cash-generating units to which this goodwill was allocated, was performed by an external adviser and reviewed by management. This valuation was conducted on January 2020 and is based on Banco de Bogotá´s financial statements at September 30, 2019. It was concluded that there are no situations that imply a possible impairment, given that the recoverable amount of the groups of cash generating units associated with goodwill was Ps. 11,106,623 exceeds the book value by Ps. 2,867,134. The following table shows the main assumptions used in the latest impairment tests of the groups of cash-generating units with allocated goodwill. December 31, 2019 2020 2021 2022 2023 2024 Lending rate on the loan portfolio and investments 9.0 % 9.4 % 10.0 % 10.3 % 10.4 % Borrowing rate 3.7 % 3.7 % 4.1 % 4.4 % 4.3 % Growth in income from commissions 13.0 % 7.8 % 7.8 % 8.4 % 8.6 % Growth in expenses 0.1 % 5.3 % 5.7 % 5.2 % 4.9 % Inflation 3.2 % 2.7 % 3.5 % 3.3 % 3.3 % Discount rate after taxes 13.0 % Growth rate after five years 3.3 % December 31, 2018 2019 2020 2021 2022 2023 Lending rate on the loan portfolio and investments 9.4 % 10.0 % 10.1 % 10.3 % 10.5 % Borrowing rate 3.5 % 3.8 % 3.9 % 4.2 % 4.3 % Growth in income from commissions 9.9 % 7.5 % 8.0 % 7.9 % 8.3 % Growth in expenses 3.7 % 3.9 % 3.1 % 3.5 % 3.6 % Inflation 2.9 % 3.1 % 2.7 % 3.5 % 3.3 % Discount rate after taxes 14.0 % Growth rate after five years 3.1 % A 5-year projection was made to estimate goodwill, based on macroeconomic assumptions and those related to the businesses listed in the foregoing tables. The following is a description of that process. · The lending rates on loans and investments were projected based on the Company expected rates and lending rates from independent specialists (The Economist Intelligence Unit "EIU") · The borrowing rates were projected based on the Company expected rates and the money market interest rate from EIU. · Estimated growth in commissions is based on its historical percentage over the gross loan portfolio. · Estimated growth in expenses is based on the inflation’s growth and/or its historical percentage over revenues. · The inflation rate used in the projections is based on reports from outside sources, such as The Economist Intelligence Unit, and Corficolombiana. · The growth rate used for the terminal value was 3.3%, which is the average projected inflation provided by the independent specialists and reviewed by management. The discount rate after taxes used to discount dividend flows reflects the specific risks relative to each cash-generating unit. If the 13.0% estimated discount rate had been 1.0% higher than the rate estimated in the models, the book value of goodwill would not have to be reduced, since the fair value of the groups of cash-generating units associated with goodwill would have been Ps. 10,030,439, which is above the book value of Ps. 8,239,489 as of December 31, 2019. C. Sociedad Administradora de Fondos de Pensiones y Cesantías Porvenir S.A. Porvenir absorbed AFP Horizonte Pensiones y Cesantías S.A. and the goodwill in question was allocated to the groups of cash-generating units that together made up Porvenir later that same year. The latest valuation update for the business lines of the groups of cash-generating units to which this goodwill was allocated, was done by an external adviser and reviewed by management. This valuation was conducted on January 2020 and is based on financial statements of Porvenir at September 30, 2019. The conclusion was that there are no situations that imply a possible impairment, given that the recoverable amount of the groups of cash generating units associated with goodwill was Ps. 5,731,871, exceeding the book value by Ps. 2,259,084. The following are the main assumptions used in the impairment test reports taken as the basis for impairment testing on the dates listed, although the valuation exercise includes a 20 years projection, the following tables only show the first 5 years as reates, following the first year of projection, are generally stable with no significant variations. December 31, 2019 2020 2021 2022 2023 2024 Interest rate on investments 2.7 % 2.8 % 3.2 % 3.1 % 3.1 % Borrowing rate 6.3 % 6.3 % 6.3 % 6.3 % 6.3 % Growth in income from commissions 0.7 % 6.3 % 7.5 % 6.5 % 6.4 % Growth in expenses 3.4 % 4.8 % 5.5 % (0.5) % 3.2 % Inflation 3.2 % 2.7 % 3.5 % 3.3 % 3.3 % Discount interest rate after taxes 12.0 % Growth rate after twenty years 3.2 % December 31, 2018 2019 2020 2021 2022 2023 Interest rate on investments 4.6 % 5.7 % 5.7 % 6.5 % 6.3 % Borrowing rate 6.3 % 6.3 % 6.3 % 6.3 % 6.3 % Growth in income from commissions 1.0 % 9.4 % 7.5 % 7.8 % 6.8 % Growth in expenses 4.3 % 4.6 % 5.6 % 6.6 % 0.5 % Inflation 2.9 % 3.1 % 2.7 % 3.5 % 3.3 % Discount interest rate after taxes 13.0 % Growth rate after twenty years 3.1 % A 20‑year projection was made to estimate goodwill based on macroeconomic assumptions and those related to the business of Porvenir, as indicated in the foregoing tables. The following is a description of that process. · Investments and borrowing rates were projected using historical data and data provided by the Company on the business. · The estimated increases in commissions and expenses are based on business growth and other transactions estimated by the Company. · The inflation rate used in the projections is based on reports from outside sources, such as The Economist Intelligence Unit and Corficolombiana. · The growth rate used for the terminal value was 3.2%, which is the average projected inflation provided by the independent specialists. The discount interest rate after taxes that was used to discount dividend flows reflects the specific risks relative to each cash-generating unit. If the estimated discount rate of 12.0% had been 1.0% higher than the estimated rate in the valuation done by external experts, there would be no need to reduce the book value of goodwill, since the fair value of the groups of cash-generating units associated with goodwill would be Ps. 5,128,364 and exceeds their book value of Ps. 3,472,787 as of December 31, 2019.

OTHER INTANGIBLE ASSETS

OTHER INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2019
OTHER INTANGIBLE ASSETS
OTHER INTANGIBLE ASSETS	NOTE 18 – OTHER INTANGIBLE ASSETS Below is the detail of the balances of other intangible assets as of December 31, 2019 and 2018: December 31, 2019 Accumulated Net book Description Cost amortization value Licenses, software and information technology applications purchased Ps. 1,917,602 Ps. (763,787) Ps. 1,153,815 Internally generated 607,130 (71,431) 535,699 Non-internally generated 1,310,472 (692,356) 618,116 Other intangibles assets Ps. 76,036 Ps. (23,360) Ps. 52,676 Internally generated 5,356 — 5,356 Non-internally generated 70,680 (23,360) 47,320 Total Ps. 1,993,638 Ps. (787,147) Ps. 1,206,491 December 31, 2018 Accumulated Net book Description Cost amortization value Licenses, software and information technology applications purchased Ps. 1,564,536 Ps. (583,782) Ps. 980,754 Internally generated 418,852 (46,424) 372,428 Non-internally generated 1,145,684 (537,358) 608,326 Other intangibles assets Ps. 69,613 Ps. (16,483) Ps. 53,130 Internally generated 2,673 — 2,673 Non-internally generated 66,940 (16,483) 50,457 Total Ps. 1,634,149 Ps. (600,265) Ps. 1,033,884

INCOME TAX

INCOME TAX	12 Months Ended
	Dec. 31, 2019
Disclosure of income tax [Abstract]
Disclosure of income tax [text block]	NOTE 19 – INCOME TAX 19.1 Components of the income tax expense: The income tax expense for the years ended on December 31, 2019, 2018 and 2017 comprises the following: December 31, December 31, December 31, 2019 2018 2017 Current period income tax Ps. 1,564,056 Ps. 1,746,881 Ps. 1,276,458 Income tax surcharge (1) — 95,630 151,980 Subtotal current period taxes Ps. 1,564,056 Ps. 1,842,511 Ps. 1,428,438 Prior years adjustments (2) (16,931) (74,230) (117,568) Adjustment due to settlement of uncertain tax positions from prior years (22,113) 24,277 (7,367) Deferred taxes Deferred taxes current period 647,718 357,032 449,291 Deferred taxes - Prior years adjustments (3) (86,473) — — Subtotal deferred taxes Ps. 561,245 Ps. 357,032 Ps. 449,291 Total Ps. 2,086,257 Ps. 2,149,590 Ps. 1,752,794 (1) The income tax surcharge applicable to financial entities was declared unconstitutional for the year 2019. (2) In the year 2018 tax recovery includes Ps. 50,316 in Banco de Occidente. It was generated by the use of presumptive excesses of CREE for the years 2013 and 2014; it also includes Ps.17,812 in Corficolombiana for the reimbursement of income tax mainly from Episol and PISA Concessionaire. In the year 2017, it includes a Ps. 109,632 tax recovery at Banco de Bogotá for the years 2014, 2015 and 2016. (3) The figure corresponds to the recovery originated on the deferred tax reversal on the property, plant and equipment which had been subject to a tax base update in accordance to the rules of the normalization tax. Banco de Occidente recorded a recovery of Ps. 63,849 and Banco Popular of Ps. 24,914. 19.2 Reconciliation of the Nominal Tax Rate and the Effective tax Rate: The following are the existing legal provisions related to income tax: In Colombia The tax rules in relation to the income tax applicable during the years 2019, 2018 and 2017, among other things, establish the following: · The income tax rate to be 33% in the year 2019, 33% plus an income tax surcharge of 4% applicable to financial entities in 2018 and 34% plus an income tax surcharge of 6% in 2017. The income tax surcharge stipulated for 2019 was declared unconstitutional by the Constitutional Court of Colombia through Judgment C-510 of October 2019. · Gains on the sale or disposal of non-current assets held for more than two years is taxed at 10%. · Gains of the entities that belong to the special free zone regime in Colombia is taxed at 20%. · The tax rate on presumptive income is calculated to 1.5% in the years 2019 and 3.5% in the years 2018 and 2017. · In 2019 there is the possibility of taking 50% of the industry and commerce tax paid in the taxable period as an income tax discount, which will be 100% as of the year 2022. For the years 2018 and 2017 this tax has the deduction treatment in the income tax. · Tax loss-carry forwards incurred prior to 2017 may be offset on the same terms applicable for 2016, but they may not be fiscally readjusted. Tax loss carry-forwards incurred since 2017 may be offset against company taxable income over the following twelve years. · The “presumptive income” incurred prior to 2017 may be offset on the same terms applicable for 2016, but they may not be fiscally readjusted. The “presumptive income” incurred since 2017 may be offset by taxable income over the following five years. · As of 2017 the companies’ taxable income will be determined based in the new accounting regulation in force in Colombia since January 1, 2015. However, the new tax regulation also includes special income tax rules for several transactions. In December 2019, the Colombian congress issued Law 2010 of 2019 (Economic Growth Law), which replaces Law 1943 of 2018 (Financing Law) that was declared unconstitutional as of January 1, 2020 by the Constitutional Court of Colombia through Judgment C-481 of October 2019. The Economic Growth Law, among other things, establishes the following: · The income tax rate to be 32% in the year 2020, 31% in the year 2021 and 30% in the year 2022 and following plus an income tax surcharge of 4% applicable to financial entities in 2018. In addition, for financial institutions in Colombia that obtain in the period a taxable income equal to or greater than 120,000 Units of Tax Value (UVT), which by 2020 equals 35,607 pesos, there is 4% income tax surcharge in 2020, and 3% for the years 2021 and 2022. · The percentage of presumptive income is reduced at a rate of 0.5% in the year 2020 and 0% from the year 2021. · It holds the possibility of taking 50% of the industry and commerce tax paid in the taxable period as an income tax discount, which will be 100% as of the year 2022. · The audit benefit is extended for taxpayers who increase their net income tax of the taxable year in relation to the net income tax of the immediately preceding year by at least 30% or 20%, the expiration of a tax authority's rigth to examine the income tax will be 6 or 12 months from the date of its presentation, respectively. · The expiration of a tax authority's rigth to examine the income tax will be five years after the filing date for taxpayers who determine or compensate tax losses or are subject to the transfer pricing regime. In other countries Given that our subsidiary Leasing Bogotá Panamá has an international license it has a tax rate of 0%. The subsidiaries in Guatemala are taxed at a rate of 25%; the subsidiaries in El Salvador, Honduras, Costa Rica and Nicaragua are taxed at a rate of 30% and the subsidiaries with a local license in Panamá are taxed at a rate of 25%. The subsidiaries in Perú are taxed at a rate of 29.5% since 2017. Below is the detailed reconciliation between total expenses of the income tax of Grupo Aval calculated at the applicable enacted tax rate and the tax expense recognized in the statement of income for the years ended on December 31, 2019, 2018 and 2017: Years ended on: December 31, December 31, December 31, 2019 2018 2017 Profit before income tax Ps. 7,451,711 Ps. 7,334,141 Ps. 4,915,227 Enacted tax rate in Colombia 33 % 37 % 40 % Theoretical income tax expense 2,459,065 2,713,632 1,966,091 Nondeductible expenses 484,615 373,918 387,933 Tax losses considered non recoverable for income tax purpose 54,698 100,249 96,266 Presumptive income considered non recoverable for income tax purpose 7,071 33,296 7,991 Wealth tax — — 40,762 Nontaxable dividends (24,172) (23,457) (19,587) Nontaxable income under equity method in associates (69,399) (39,901) (68,026) Profit (loss) on sales or appraisal of investment (1,167) (2,148) (16,584) Nontaxable interest income and other income (19,088) (212,992) (137,312) Other nontaxable income (339,253) (167,091) (155,010) Revenues taxable at different tax rate (5,851) 15,378 (658) Difference from expenses deductibles at different tax rate — (11,060) (11,822) Tax benefits in the acquisition of property and equipment (42,375) (22,715) (20,585) Tax Discounts (1) (80,742) — — Profits (losses) in Subsidiaries in tax free countries or with different tax rate (116,155) (168,117) (200,661) Effect on the deferred income tax due to changes in tax rates (2) (129,172) (308,534) (38,574) Prior year adjustments (16,931) (74,230) (117,568) Adjustments due to uncertain tax positions in previous year (22,113) 24,277 (7,367) Deferred taxes - Prior years adjustments (86,473) — — Other 33,699 (80,915) 47,505 Total tax expense of the year Ps. 2,086,257 Ps. 2,149,590 Ps. 1,752,794 Effective income tax rate 28.00 % 29.31 % 35.66 % (1) Corresponds to the industry and commerce tax that during 2019 could be used as a tax discount following the Law 1943 of 2018. Banco de Bogotá recorded Ps. 47,155, Banco de Occidente Ps. 7,068, Banco Popular Ps. 6,257, Banco AV Villas Ps. 10,444, Corficolombiana Ps. 8,498 and Grupo Aval Holding Ps. 1,230. (2) The effect is due to the application of the new tax rates established in Law 1943 of 2018, with which the deferred tax rates decreased from 33% to 30%. The impact on Corficolombiana was Ps. 233,865, in Banco de Bogotá it was Ps. 59,054, in Banco de Occidente Ps. 8,408, in Banco Av Villas Ps. 6,934 and in Banco Popular of Ps.362. 19.3 Tax Losses and excess of Presumptive Income: As of December 31, 2019 and 2018, the following table shows the detail of the tax loss carry forward and excess of presumptive income over taxable income of the entities of Grupo Aval which are not recognized as deferred tax assets. December 31, December 31, 2019 2018 Tax loss carry forwards expiring on: December 31, 2022 Ps. — Ps. 66 December 31, 2024 15 — December 31, 2025 — 1,216 December 31, 2029 174,370 173,118 December 31, 2030 279,545 271,685 December 31, 2031 156,521 — December 31, 2032 4,293 — Without expiration date 431,428 458,499 Subtotal Ps. 1,046,172 Ps. 904,584 Excess of presumptive income expiring on: December 31, 2019 Ps. — Ps. 61,152 December 31, 2020 44,318 45,738 December 31, 2021 60,302 61,296 December 31, 2022 51,056 51,077 December 31, 2023 58,965 48,218 December 31, 2024 28,380 — Subtotal Ps. 243,021 Ps. 267,481 Total Ps. 1,289,193 Ps. 1,172,065 19.4 Deferred Taxes from Investments in Subsidiaries: Grupo Aval did not recorded income tax liabilities related to temporary differences on investment subsidiaries of Ps. 10,176,800 and Ps. 8,231,985 as of December 31 2019 and 2018, respectively. This liability was not recognized because Grupo Aval controls the dividend policy of its subsidiaries and is able to control the timing of reversal of the related taxable temporary differences and Grupo Aval will not reverse them in the foreseeable future. 19.5 Deferred taxes by Type of Temporary Difference: The differences between the carrying value of the assets and liabilities and their tax bases give rise to the following temporary differences which result in deferred taxes, calculated and recorded in the years ended on December 31, 2019, 2018 and 2017, based on current tax regulations as references for the years wherein such temporary differences will be reverted: Year ended on December 31, 2019 Balance as of Change in Credited Credited Balance as of December 31, accounting (charged) to (charged) to Foreign exchange December 31, 2018 policies profit or loss OCI adjustments 2019 Deferred tax assets Debt securities at fair value Ps. 29,650 Ps. — Ps. (14,680) Ps. (4,540) Ps. 844 Ps. 11,274 Equity securities at fair value 622 — (1,129) 872 — 365 Derivative instruments 73,154 — 68,038 15,351 — 156,543 Allowance of investments securities 136 — 37 — — 173 Accounts receivable — — 147 — — 147 Allowance for accounts receivable 41,390 — 8,750 — 4 50,144 Loans and receivables 14,917 — (13,440) — 173 1,650 Allowance for impairment on loans and receivables 159,169 — 54,517 — (1,463) 212,223 Allowance for foreclosed assets 2,927 — (1,203) — 132 1,856 Property, plant and equipment costs 284,111 — 16,749 — 3,908 304,768 Depreciation of property, plant and equipment 20,903 — 15,180 — — 36,083 Investment property — — 18,323 — — 18,323 Deferred charges and of intangible assets 168,856 — (69,272) — — 99,584 Tax losses carry forward 299,201 — (24,518) (240,420) 22,253 56,516 Surplus of presumptive income 4,670 — 991 — — 5,661 Provisions 189,882 — 35,111 — (1,755) 223,238 Employee benefits 131,783 — (27,270) 15,308 546 120,367 Goodwill — — 859 — — 859 Deferred Income 2,587 — (2,587) — — — Financial assets in concession contracts 158,645 — 89,238 — — 247,883 Biological assets 104 — 282 (166) — 220 Lease agreements 8,592 649,307 (74,500) — 3,480 586,879 Other 271,950 — (3,989) 18,102 (595) 285,468 Subtotal Ps. 1,863,249 Ps. 649,307 Ps. 75,633 Ps. (195,492) Ps. 27,527 Ps. 2,420,224 Deferred tax liabilities Debt securities at fair value Ps. (49,937) Ps. — Ps. 43,565 Ps. (65,399) Ps. (3,343) Ps. (75,114) Equity securities at fair value (115,877) — 20,716 (10,773) 432 (105,502) Derivative instruments (17,565) — 17,410 (10,272) 3,163 (7,264) Accounts receivable (287,526) — 195,426 — — (92,100) Allowance of investments securities (23,150) — (62,434) — — (85,584) Loans and receivables (63,567) — 25,769 — (288) (38,086) Allowance for impairment on loans and receivables (270,947) — (163,948) — 2,188 (432,707) Foreclosed assets (92,416) — 2,140 — — (90,276) Provision for foreclosed assets (109,092) — 100,172 — 309 (8,611) Property plant and equipment costs (357,384) — 54,139 — 8,942 (294,303) Depreciation of property, plant and equipment (170,138) — (86,092) — (9,275) (265,505) Investment property — — (69,732) (333) — (70,065) Right-of-use — (636,017) 144,618 — (3,524) (494,923) Deferred charges and of intangible assets (621,878) — 539,796 — — (82,082) Provisions (24,280) — 21,285 — (6,413) (9,408) Employee benefits — — (28,020) 322 206 (27,492) Goodwill (193,030) — (29,483) — — (222,513) Deferred Income (116,034) — (11,189) — — (127,223) Financial assets in concession arrangements (898,741) — (1,182,031) — — (2,080,772) Biological assets (23,333) — (4,371) — — (27,704) Lease agreements (4,293) — (226,874) — — (231,167) Other (243,665) — 62,260 (1,235) 6,106 (176,534) Subtotal Ps. (3,682,853) Ps. (636,017) Ps. (636,878) Ps. (87,690) Ps. (1,497) Ps. (5,044,935) Total Ps. (1,819,604) Ps. 13,290 Ps. (561,245) Ps. (283,182) Ps. 26,030 Ps. (2,624,711) Year ended on December 31, 2018 Balance as of Change in Credited Credited Balance as of December 31, accounting (charged) to (charged) to Foreign exchange December 31, 2017 policies profit or loss OCI adjustments 2018 Deferred tax assets Debt securities at fair value Ps. 8,081 Ps. (2,431) Ps. 18,840 Ps. 4,563 Ps. 597 Ps. 29,650 Equity securities at fair value 8 102 512 — — 622 Derivative instruments 36,805 — (102,681) 185,803 (46,773) 73,154 Allowance of investments securities 366 31 (264) — 3 136 Allowance for accounts receivable 333 — 44,660 — (3,603) 41,390 Loans and receivables 71,938 64,527 (121,072) — (476) 14,917 Allowance for impairment on loans and receivables 66,127 68,513 13,808 — 10,721 159,169 Allowance for other accounts receivable 4,649 — (4,649) — — — Foreclosed assets 18,161 — (15,474) — 240 2,927 Property, plant and equipment costs 364,540 — (77,625) — (2,804) 284,111 Depreciation of property, plant and equipment 11,993 — 8,854 — 56 20,903 Deferred charges and of intangible assets 145,625 — 23,233 — (2) 168,856 Tax losses carry forward 332,354 — 365,698 (402,042) 3,191 299,201 Surplus of presumptive income 2,528 — 2,142 — — 4,670 Provisions 197,963 (11,038) 2,163 — 794 189,882 Employee benefits 98,924 — 41,406 (9,394) 847 131,783 Deferred income — 12,349 (9,762) — — 2,587 Financial assets in concession contracts 28,536 (6,322) 136,431 — — 158,645 Biological assets 169 — (65) — — 104 Lease agreements 8,042 — 625 — (75) 8,592 Other 123,645 (102) (6,161) 165,680 (11,112) 271,950 Subtotal Ps. 1,520,787 Ps. 125,629 Ps. 320,619 Ps. (55,390) Ps. (48,396) Ps. 1,863,249 Deferred tax liabilities Debt securities at fair value Ps. (44,492) Ps. 9,555 Ps. (14,843) Ps. 26 Ps. (183) Ps. (49,937) Equity securities at fair value (121,226) (298) 7,361 2,084 (3,798) (115,877) Derivative instruments (87,525) — 23,187 — 46,773 (17,565) Accounts receivable (306,774) (17) 17,677 1,588 — (287,526) Allowance of investments securities (182) 57 (23,025) — — (23,150) Loans and receivables (322,746) 3,668 256,357 — (846) (63,567) Allowance for impairment on loans and receivables (397,838) 204,100 (77,442) — 233 (270,947) Foreclosed assets (72,209) — (20,314) — 107 (92,416) Provision for foreclosed assets (41,654) — (67,096) — (342) (109,092) Property plant and equipment costs (363,814) — 11,305 — (4,875) (357,384) Depreciation of property, plant and equipment (179,877) — 9,908 — (169) (170,138) Deferred charges and of intangible assets (107,721) — (514,157) — — (621,878) Provisions (575) — (22,312) 304 (1,697) (24,280) Goodwill (169,675) — (23,355) — — (193,030) Deferred Income (40,534) 40,534 (116,034) — — (116,034) Financial assets in concession arrangements (700,738) (228,241) 30,238 — — (898,741) Biological assets (16,583) — (6,750) — — (23,333) Lease agreements (32,636) — 28,343 — — (4,293) Other (71,408) (779) (176,699) (11,271) 16,492 (243,665) Subtotal Ps. (3,078,207) Ps. 28,579 Ps. (677,651) Ps. (7,269) Ps. 51,695 Ps. (3,682,853) Total Ps. (1,557,420) Ps. 154,208 Ps. (357,032) Ps. (62,659) Ps. 3,299 Ps. (1,819,604) Year ended on December 31, 2017 Balance as of Credited Credited Balance as of December 31, (charged) to (charged) to Foreign exchange December 31, 2016 profit or loss OCI adjustments 2017 Deferred tax assets Debt securities at fair value Ps. 62,627 Ps. (30,580) Ps. (23,966) Ps. — Ps. 8,081 Equity securities at fair value 1,583 (1,254) (321) — 8 Derivative instruments 78,740 (41,935) — — 36,805 Accounts receivable 16,278 (15,589) — 10 699 Loans and receivables 6,014 65,924 — — 71,938 Allowance for impairment on loans and receivables 105,573 (39,446) — — 66,127 Allowance for other accounts receivable 6,219 (1,570) — — 4,649 Financial assets in concession contracts 25,837 2,571 — 128 28,536 Foreclosed assets 4,846 13,315 — — 18,161 Property, plant and equipment costs 296,269 68,271 — — 364,540 Depreciation of property, plant and equipment 5,699 6,294 — — 11,993 Biological assets 101 68 — — 169 Deferred charges and of intangible assets 113,817 30,922 — 886 145,625 Tax losses carry forward 385,855 (53,556) — 55 332,354 Surplus of presumptive income 19,480 (16,952) — — 2,528 Provisions 212,695 (17,649) — 2,917 197,963 Employee benefits 104,606 (29,658) 23,976 — 98,924 Deferred income 113,380 (113,380) — — — Lease agreements 9,160 (1,118) — — 8,042 Other 69,022 52,233 935 1,455 123,645 Subtotal Ps. 1,637,801 Ps. (123,089) Ps. 624 Ps. 5,451 Ps. 1,520,787 Deferred tax liabilities Debt securities at fair value Ps. (27,278) Ps. 29,105 Ps. (46,319) Ps. — Ps. (44,492) Equity securities at fair value (100,484) 302 33 (21,077) (121,226) Unrealized profits of foreign subsidiaries (22,029) — — 22,029 — Derivative instruments (67,974) (15,190) (4,361) — (87,525) Accounts receivable (260,621) (46,335) — 182 (306,774) Allowance of investments securities — — — (182) (182) Loans and receivables (268,747) (53,999) — — (322,746) Allowance for impairment on loans and receivables (275,785) (122,053) — — (397,838) Foreclosed assets (46,783) (25,426) — — (72,209) Provision for foreclosed assets (37,798) (3,856) — — (41,654) Property plant and equipment costs (400,180) 36,404 — (38) (363,814) Depreciation of property, plant and equipment (209,549) 30,948 — (1,276) (179,877) Deferred charges and of intangible assets (60,598) (47,123) — — (107,721) Provisions (471) (62) 116 (158) (575) Goodwill (86,036) (83,639) — — (169,675) Deferred Income (34,613) (5,921) — — (40,534) Financial assets in concession arrangements (718,496) 20,548 — (2,790) (700,738) Biological assets (6,806) (9,777) — — (16,583) Lease agreements — — — (32,636) (32,636) Other (65,400) (30,128) (11,053) 35,173 (71,408) Subtotal Ps. (2,689,648) Ps. (326,202) Ps. (61,584) Ps. (773) Ps. (3,078,207) Total Ps. (1,051,847) Ps. (449,291) Ps. (60,960) Ps. 4,678 Ps. (1,557,420) Grupo Aval offsets deferred tax assets and liabilities by entity and tax authority, considering the application of the tax provisions in Colombia and other countries in which the legal right to offset tax assets and liabilities and other requirements in IAS 12, according to the following breakdown: Gross Deferred tax Balances on Statement December 31, 2019 amounts Offset of financial position Deferred tax asset Ps. 2,420,224 Ps. (2,173,626) Ps. 246,598 Deferred tax liability (5,044,935) 2,173,626 (2,871,309) Net Ps. (2,624,711) Ps. — Ps. (2,624,711) Gross Deferred tax Balances on Statement December 31, 2018 amounts Offset of financial position Deferred tax asset Ps. 1,863,249 Ps. (1,521,911) Ps. 341,338 Deferred tax liability (3,682,853) 1,521,911 (2,160,942) Net Ps. (1,819,604) Ps. — Ps. (1,819,604) Grupo Aval estimates to recover its income tax assets and settle its income tax liabilities as shown below: Deferred tax December 31, 2019 December 31, 2018 Deferred tax asset recoverable before 12 months Ps. Ps. Deferred tax asset recoverable after 12 months Total Deferred tax asset Ps. Ps. Deferred tax liability to settle before 12 months Ps. Ps. Deferred tax liability to settle after 12 months Total Deferred tax liability Ps. Ps. Current tax December 31, 2019 December 31, 2018 Current tax asset recoverable before 12 months Ps. Ps. Current tax asset recoverable after 12 months Total Current tax asset Ps. Ps. Current tax liability to settle before 12 months Ps. Ps. Current tax liability to settle after 12 months Total Current tax liability Ps. Ps. 19.6 Effect of the current and deferred taxes in each component of other comprehensive income in equity: The effects of the current and deferred taxes in each component of other comprehensive income is detailed below during the years ended on December 31, 2019, 2018 and 2017: December 31, 2019 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes income income Net Hedging of net investments in foreign subsidiaries operations Ps. 95,329 Ps. — Ps. 145 Ps. 95,474 Hedging derivatives in foreign currency (50,318) — 18,221 (32,097) Hedging financial liabilities in foreign currency (47,942) 247,153 (229,627) (30,416) Cash Flow hedging 13,469 — (4,988) 8,481 Foreign currency translation differences for foreign operations 128,135 — (1,235) 126,900 Investment in associates and join ventures (9,061) — — (9,061) Debt financial instruments 426,300 — (69,707) 356,593 Subtotal Items that will be reclassified to profit or loss Ps. 555,912 Ps. 247,153 Ps. (287,191) Ps. 515,874 Items that will not be reclassified to profit or loss Effect of moving investment properties for own use Ps. 5,288 Ps. — Ps. (333) Ps. 4,955 Equity financial instruments 237,781 — (11,288) 226,493 Actuarial gains (losses) from defined benefit pension plans (61,222) — 15,630 (45,592) Subtotal Items that will not be reclassified to profit or loss Ps. 181,847 Ps. — Ps. 4,009 Ps. 185,856 Total “other comprehensive income” during the period Ps. 737,759 Ps. 247,153 Ps. (283,182) Ps. 701,730 December 31, 2018 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes Income income Net Hedging of net investments in foreign subsidiaries operations Ps. 1,124,732 Ps. — Ps. — Ps. 1,124,732 Hedging derivatives in foreign currency (547,310) 372,715 (227,807) (402,402) Hedging financial liabilities in foreign currency (576,881) — 176,378 (400,503) Cash Flow hedging (19,789) — 6,697 (13,092) Foreign currency translation differences for foreign operations (299,804) — (16,006) (315,810) Investment in associates and joint ventures (107,084) — 11,554 (95,530) Debt financial instruments 22,400 — (393) 22,007 Subtotal Items that will be reclassified to profit or loss Ps. (403,736) Ps. 372,715 Ps. (49,577) Ps. (80,598) Items that will not be reclassified to profit or loss Asset revaluation Ps. — Ps. — Ps. — Ps. — Equity financial instruments (134,084) — (5,891) (139,975) Actuarial gains (losses) from defined benefit pension plans 18,013 — (7,191) 10,822 Subtotal Items that will not be reclassified to profit or loss Ps. (116,071) Ps. — Ps. (13,082) Ps. (129,153) Total “other comprehensive income” during the period Ps. (519,807) Ps. 372,715 Ps. (62,659) Ps. (209,751) December 31, 2017 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes Income income Net Hedging of net investments in foreign subsidiaries operations Ps. (47,197) Ps. — Ps. — Ps. (47,197) Hedging derivatives in foreign currency 16,832 — (5,554) 11,278 Hedging financial liabilities in foreign currency 30,568 — (11,065) 19,503 Cash Flow hedging (2,340) — 969 (1,371) Foreign currency translation differences for foreign operations (91,497) (12,657) 956 (103,198) Debt financial instruments 284,480 — (69,743) 214,737 Investment in associates and joint ventures 1,128 — 116 1,244 Subtotal Items that will be reclassified to profit or loss Ps. 191,974 Ps. (12,657) Ps. (84,321) Ps. 94,996 Items that will not be reclassified to profit or loss Asset revaluation Ps. — Ps. — Ps. — Ps. — Equity financial instruments 57,245 — (720) 56,525 Actuarial gains (losses) from defined benefit pension plans (100,232) — 24,081 (76,151) Subtotal Items that will not be reclassified to profit or loss Ps. (42,987) Ps. — Ps. 23,361 Ps. (19,626) Total “other comprehensive income” during the period Ps. 148,987 Ps. (12,657) Ps. (60,960) Ps. 75,370 19.7 Uncertainties in Open Tax Positions As of December 31, 2019, and 2018, Grupo Aval recognized tax uncertainty liabilities for Ps. 107,166 and Ps. 121,832 respectively, uncertain tax positions corresponding to expenses, considered deductible, and which, according to decisions of the tax authorities, uncertainties taken should be considered as non-deductible. The balance as of December 31, 2019 is expected to be used fully or released when the inspection rights of the tax authorities with respect to the open tax returns expire. Uncertainties on open tax positions of Grupo Aval’s subsidiaries are as follows: December 31, 2019 December 31, 2018 Banco de Bogotá Ps. 99,808 Ps. 113,345 Banco de Occidente 7,358 6,095 Corficolombiana — 2,392 Total Ps. 107,166 Ps. 121,832 The roll-forward of tax uncertainties during the years ended on December 31, 2019, 2018 and 2017 is as follows: December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 121,832 Ps. 94,692 Ps. 104,156 Provisions increased during the year 837 11,904 18,039 Provisions used (4,301) (1,088) (873) Amounts reversed due to provisions not used (135) (2,960) (32,010) Financial cost (19,904) 16,421 7,477 Foreign exchange adjustments 8,836 2,863 (2,097) Balance at the end of the year Ps. 107,166 Ps. 121,832 Ps. 94,692 The balance as of December 31, 2019 and 2018 is expected to be completely used or released once the inspection rights from the tax authorities regarding tax returns expire, as follows: December 31, December 31, Year 2019 2018 2019 Ps. — Ps. 3,006 2020 — 27,968 2021 33,869 30,478 2022 36,049 27,276 2023 30,221 31,373 2024 2,445 1,579 2025 1,391 152 2026 2,736 — 2027 179 — 2028 277 — Total Ps. 107,166 Ps. 121,832

CUSTOMER DEPOSITS

CUSTOMER DEPOSITS	12 Months Ended
	Dec. 31, 2019
Disclosure of Customer Deposits [Abstract]
Disclosure of deposits from customers [text block]	NOTE 20 – CUSTOMER DEPOSITS 20.1 Detail of the composition of the deposits The following is the detail of the balances of the deposits received from Grupo Aval´s customer and subsidiaries in development of their deposit collection operations: Detail December 31, 2019 December 31, 2018 Demand Checking accounts Ps. 42,449,702 Ps. 39,702,878 Savings accounts 59,352,760 57,221,439 Other funds on demand 463,770 582,122 102,266,232 97,506,439 Term deposits Fixed term deposit certificates (1) 73,225,189 66,853,012 Total deposits 175,491,421 164,359,451 Per currency In Colombian Pesos 101,427,370 99,388,366 In foreign currency 54,963,501 48,478,108 Other 19,100,550 16,492,977 Total per currency Ps. 175,491,421 Ps. 164,359,451 (1) The amount of term deposits due over 12 months as December 31, 2019 is Ps. 23,808,900 and December 31, 2018 is Ps. 20,686,104. 20.2 Detail of the effective interest rates The following is a summary of the effective interest rates which are accrued on customer deposits is as follows: December 31, 2019 Deposits In Colombian Pesos In foreign currency Rate Rate Minimum Maximum Minimum Maximum % % % % Interest-bearing checking accounts 0.04 % 2.50 % 0.03 % 5.50 % Saving accounts 0.01 % 6.03 % 0.02 % 8.00 % Fixed term deposit certificates 0.01 % 11.60 % 0.15 % 10.35 % December 31, 2018 Deposits In Colombian Pesos In foreign currency Rate Rate Minimum Maximum Minimum Maximum % % % % Interest-bearing checking accounts 0.04 % 4.76 % 0.25 % 5.50 % Saving accounts 0.01 % 6.00 % 0.05 % 8.00 % Fixed term deposit certificates 0.05 % 9.05 % 0.05 % 11.45 % 20.3 Detail of the concentration of deposits received from customers per economic sector December 31, 2019 December 31, 2018 Amount % Amount % Commerce Ps. 24,234,289 14 % Ps. 27,454,858 17 % Financial 48,741,261 28 % 25,001,924 15 % Individuals 30,714,387 18 % 26,626,082 16 % Government and Colombian Government entities 16,670,646 9 % 20,817,529 13 % Manufacturing 3,192,627 2 % 8,634,657 5 % Real Estate 3,703,896 2 % 6,235,260 4 % Agriculture and livestock 1,256,291 1 % 2,200,313 1 % Colombian Municipalities 29,302 0 % 1,807,946 1 % Foreign Governments 681,466 0 % 652,670 1 % Other (1) 46,267,256 26 % 44,928,212 27 % Total Ps. 175,491,421 100 % Ps. 164,359,451 100 % (1) December 31, 2019, includes deposits from, education sector of Ps. 2,422,713, services sector of Ps. 17,279,692, insurance sector of Ps. 1,353,557, tourism sector Ps. 501,073, transportation sector of Ps. 1,176,385 and others sector of Ps. 23,533,836.

FINANCIAL OBLIGATIONS

FINANCIAL OBLIGATIONS	12 Months Ended
	Dec. 31, 2019
Disclosure of deposits from financial obligations [abstract]
Disclosure of financial liabilities [text block]	NOTE 21 – FINANCIAL OBLIGATIONS 21.1 Financial obligations other than issued bonds a) Interbank borrowings, overnight funds and borrowings from banks and others The following is a summary of the financial obligations of Grupo Aval as of December 31, 2019 and 2018: December December 31, 2019 31, 2018 Local Currency Interbank funds Overnight funds Ps. 9,027 Ps. 4,152 Interbank funds purchased 1,595,504 173,274 Commitments to transfer open and closed repo operations 1,706,368 1,884,750 Commitments to transfer simultaneous operations 4,456,544 2,306,037 Commitments originated in short positions simultaneous operations 262,873 362,833 Total interbank funds Ps. 8,030,316 Ps. 4,731,046 Borrowings from banks and others Borrowings 2,192,128 1,964,408 Leases contracts* 1,539,871 — Letters of credit — 300 Bankers acceptances 17 217 Total borrowings from banks and others Ps. 3,732,016 Ps. 1,964,925 Foreign currency Interbank funds Overnight funds 6,283 — Interbank funds purchased 921,500 1,568,172 Commitments to transfer open and closed repo operations 282,380 514,860 Total interbank funds Ps. 1,210,163 Ps. 2,083,032 Borrowings from banks and others Borrowings 12,336,206 17,190,315 Leases contracts* 1,493,631 — Andean Development Corporation 551,198 384,758 Letters of credit 622,730 356,640 Bankers acceptances 1,008,485 664,429 Discoveries in bank current account 59,078 49,699 Total borrowings from banks and others Ps. 16,071,328 Ps. 18,645,841 Total interbank borrowings, overnight funds and borrowings from banks and others Ps. 29,043,823 Ps. 27,424,844 (*) Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). The amount of interbank borrowings, overnight funds and borrowings from banks and others due over 12 months as of December 31, 2019 is Ps. 8,692,991 and December 31, 2018 is Ps. 7,219,765. As of December 31, 2019, short-term obligations associated with simultaneous and repo operations amounted to Ps. 4,456,544 and guaranteed with investments of Ps. 7,162,889 of December 31, 2018 Ps. 2,306,037 short-term obligations were guaranteed with investments for an amount of Ps. 4,663,828. b) Borrowings from development entities The Colombian Government has established certain credit programs for promoting the development of specific sectors of the economy, including foreign trade, agriculture, tourism, housing construction and other industries. The programs are managed by many entities of the Government such as Banco de Comercio Exterior (“Bancoldex”), Fondo para el Financiamiento del Sector Agropecuario (“Finagro”) and Financiera de Desarrollo Territorial (“Findeter”). The details of the borrowings from these entities as of December 31, 2019, and 2018 and are as follows: Interest rates in force at cut off December 31, 2019 December 31, 2018 Banco de Comercio Exterior - “BANCOLDEX” Fix between 0.02% and 21.15%, DTF + 0.10% to 5.83%, IBR + 0.10% to 8.31%, LIBOR1 + 2.15% to 4.54%, LIBOR6 + 2.38% to 5.08% Ps. 1,326,045 Ps. 1,303,648 Fondo para el Financiamiento del Sector Agropecuario - “FINAGRO” Fix between 0.50% and 15.48%, DTF + 0.50% to 7.00% and IBR + 0.90% to 1.90% 338,195 278,025 Financiera de Desarrollo Territorial “FINDETER” Fix between 0.25% and 13.38%, DTF + 0.6% to 4.38%, IBR+ 0.40% to 3.90%, IPC+ 0.50% and 5.00% and LIBOR6 +4.51% and 4.81% 2,218,245 2,065,123 Total Ps. 3,882,485 Ps. 3,646,796 The amount of borrowings from development entities due over 12 months as of December 31, 2019 is Ps. 3,633,973 and December 31, 2018 is Ps. 3,203,170. 21.2. Financial obligations from issued bonds The different entities from Grupo Aval are authorized by the Superintendency of Finance and by the regulatory entities abroad where Grupo Aval operates, for issuing or placing either bonds or general guarantee bonds. The bonds issued by Grupo Aval and subsidiaries are non-guaranteed and represent exclusively the obligations of each of the issuers. The detail of liabilities as of December 31, 2019 and 2018, by issue date and maturity date was as follows: December December Issuer Issue Date 31, 2019 31, 2018 Maturity Date Interest Rate Local Currency Banco de Bogotá S.A. 23/02/2010 Ps. 137,598 Ps. 134,736 23/02/2020 CPI + 5.45% and UVR + 5.45% Banco de Occidente Between 22/09/2011 and 18/09/2019 3,246,333 3,143,903 Between 27/04/2020 and 14/12/2032 CPI + 1.75% a 4.65%, Fixed between 5.83% to 6.18% Corporación Financiera Colombiana S.A. Between 27/08/2009 and 27/08/2019 2,895,156 2,853,685 Between 29/01/2020 and 02/03/2043 CPI +2.16% to 5.99%, Fixed 7.10% Banco Popular Between 26/02/2013 and 13/02/2019 1,753,896 1,616,729 Between 14/02/2020 and 12/10/2026 CPI+ 2.90% to 4.13%; Fixed between 6.17% to 8.10% Grupo Aval Acciones y Valores Between 03/12/2009 and 14/11/2019 1,201,189 1,108,713 Between 28/06/2020 and 28/06/2042 CPI + 2.69% to 5.20% and Fixed 6.42% Peso denominated Total Ps. 9,234,172 Ps. 8,857,766 Foreign Currency Banco de Bogotá S.A. Under rule 144A. Between 19/02/2013 and 03/08/2017 7,109,822 7,042,678 Between 19/02/2023 and 03/08/2027 Fixed between 4.38% to 6.25% BAC Credomatic El Salvador Between 11/02/2013 and 19/08/2019 726,607 753,556 Between 11/02/2020 and 19/08/2024 Between 5.20% to 5.85% Honduras Between 12/05/2017 and 15/11/2019 320,162 205,017 Between 12/05/2020 and 11/04/2022 Between 0.75% to 9.50% Guatemala Between 09/07/2018 and 24/08/2018 — 14,025 Between 09/07/2019 and 26/08/2019 Between 4.25% to 5.50% BAC Credomatic Total Ps. 1,046,769 Ps. 972,598 Banco Bogotá and BAC Credomatic Total Ps. 8,156,591 Ps. 8,015,276 Grupo Aval Limited 19/09/2012 3,268,629 3,267,308 26/09/2022 Fixed 4.75% Corficolombiana 16/10/2019 1,258,876 — 16/10/2029 Fixed 3.75% Foreign Currency Total Ps. 12,684,096 Ps. 11,282,584 Total of Bonds Ps. 21,918,268 Ps. 20,140,350 The amount of issued bonds due over 12 months as of December 31, 2019 is Ps. 19,908,991 and December 31, 2018 is Ps. 18,772,405. Grupo Aval has not had any defaults of principal or interest or other breaches with respect to its liabilities during the years ended 31 December 2019 and 2018, and Grupo Aval is complying with the related covenants agreed with investors and debtors. 21.3 Analysis of changes in financing during the year Reconciliation of movements of liabilities to cash flows arising from financing activities: Liabilities Equity Total Notes Dividends payable Bonds issued Leases Subscribed and paid-in capital Additional paid-in capital Non-controlling interest Balance at December 31, 2016 Ps. 644,733 Ps. 18,568,236 Ps. 1,108,400 Ps. 22,281 Ps. 8,307,527 Ps. 9,057,669 Ps. 37,708,846 Cash flows from financing activities: Dividens paid to shareholders (1,307,525) — — — — — (1,307,525) Dividens paid to non-controlling interest (768,769) — — — — — (768,769) Issuance of debt securities — 4,548,108 — — — — 4,548,108 Payment of outstanding debt securities — (3,913,694) — — — — (3,913,694) Acquisition of NCI Without a change in control — — — — (4,096) — (4,096) Net cash used in financing activities (2,076,294) 634,414 — — (4,096) — (1,445,976) Cash flows from operating activities: Accrued interest — 1,162,203 — — — — 1,162,203 Interest paid — (1,205,741) — — — — (1,205,741) Other changes 2,021,602 (56,916) (53,395) — — (711,578) 1,199,713 Total liabilities related to other changes 2,021,602 (100,454) (53,395) — — (711,578) 1,156,175 Total equity related to other changes — — — — — 1,218,493 1,218,493 Balance at December 31, 2017 590,041 19,102,196 1,055,005 22,281 8,303,431 9,564,584 38,637,538 Cash flows from financing activities: Dividens paid to shareholders (1,128,535) — — — — — (1,128,535) Dividens paid to non-controlling interest (745,932) — — — — — (745,932) Issuance of debt securities — 1,095,892 — — — — 1,095,892 Payment of outstanding debt securities — (1,139,897) — — — — (1,139,897) Issuance of shares — — — — — 988,072 988,072 Equity transaction — — — — (12,674) (54,483) (67,157) Net cash used in financing activities (1,874,467) (44,005) — — (12,674) 933,589 (997,557) Cash flows from operating activities: Accrued interest — 1,162,699 — — — — 1,162,699 Interest paid — (922,968) — — — — (922,968) Other changes 1,819,736 842,429 (31,416) — — (749,987) 1,880,762 Total liabilities related to other changes 1,819,736 1,082,160 (31,416) — — (749,987) 2,120,493 Total equity related to other changes — — — — 181,579 2,016,453 2,198,032 Balance at December 31, 2018 535,310 20,140,351 1,023,589 22,281 8,472,336 11,764,639 41,958,506 Change in accounting policies on january 1, 2019 — — 2,225,545 — — — 2,225,545 Cash flows from financing activities: Dividens paid to shareholders (1,266,920) — — — — — (1,266,920) Dividens paid to non-controlling interest (804,302) — — — — — (804,302) Issuance of debt securities — 3,130,254 — — — — 3,130,254 Interest issuance of debt securities — 18,633 — — — — 18,633 Payment of outstanding debt securities — (1,544,225) — — — — (1,544,225) Leases — — (362,334) — — — (362,334) Equity transaction — — — — (26,570) (40,527) (67,097) Net cash used in financing activities (2,071,222) 1,604,662 (362,334) — (26,570) (40,527) (895,991) Cash flows from operating activities: Accrued interest — 1,220,437 205,627 — — — 1,426,064 Interest paid — (1,103,218) (194,589) — — — (1,297,808) Other Changes 2,167,023 56,037 135,665 — — (830,160) 1,528,564 Total liabilities related to other changes 2,167,023 173,255 146,703 — — (830,160) 1,656,821 Total equity related to other changes — — — — — 2,603,750 2,603,750 Balance at December 31, 2019 Ps. 631,111 Ps. 21,918,268 Ps. 3,033,502 Ps. 22,281 Ps. 8,445,766 Ps. 13,497,702 Ps. 47,548,631

EMPLOYEE BENEFITS

EMPLOYEE BENEFITS	12 Months Ended
	Dec. 31, 2019
Disclosure of defined benefit plans [abstract]
Disclosure of defined benefit plans [text block]	NOTE 22 – EMPLOYEE BENEFITS In accordance with Colombian and other countries labor legislation where Grupo Aval has subsidiaries, and based on a labor conventions and labor collective agreements signed between como Group entities and their employees, employees are entities have short term benefits such as: salaries, holidays, legal and extralegal premiums, severances and interests on severance, long-term benefits such as seniority bonds premiums and post-employment benefits such medical aids and retirement benefits such as: severance payments to employees that continue with labor regime before Law 50 of 1990 and legal and extralegal retirement pensions. Compensation for key personnel of the management includes salaries and benefits different than cash. (see note 34). Through personnel benefits plans, Grupo Aval is exposed to several risks (interest rates and operating), which are intended to be minimized by applying the risk management policies and procedures defined in Note 4 above. The detail of the balance of liabilities for employee benefits at December 31, 2019, and 2018 is as follows: December 31, 2019 December 31, 2018 Short term Ps. 480,489 Ps. Post-employment 590,914 Long term 186,333 Total Ps. 1,257,736 Ps. 1,264,881 Plan Asset Ps. (22,756) Ps. — Net employee benefits Ps. 1,234,980 Ps. 1,264,881 22.1 Post-employment benefits · In Colombia, when employees retire after completing certain years and time of service, retirement pensions are assumed by public or private pension funds based on defined contribution plans, to which entities and employees contribute monthly defined amounts by law for being entitled to the pension at the time of retirement. However, for some employees hired by Grupo Aval entities prior to 1968 that have fulfilled the requirements of age and years of service the pensions are directly assumed by some of the entities of Grupo Aval. · Certain employees hired by entities of Grupo Aval before 1990 are entitled to receive a compensation equivalent to the last month of salary multiplied by each year of service. · Some subsidiaries have labor conventions or pay extra-legal premiums to employees retiring in compliance with the required age and time of service, when they start enjoying the pension granted by the pension funds. · Some pensioners for Grupo Aval and its entities receive benefits that include coverage of medical treatments. As of December 31, 2019 and 2018, the post-employment benefit expense is composed of: December 31, 2019 December 31, 2018 Defined contribution plan Ps. 73,297 Ps. 88,147 Defined benefit plan 52,723 31,336 22.2 Long Term Employee Benefits · Some Grupo Aval subsidiaries grant their employees extra-legal long term premiums during their working lives every five years of service are completed, calculated as days of salary per year of work. · Grupo Aval has recognized the liabilities corresponding to these benefits, based on the same actuarial calculations carried out under the same parameters of retirement benefits. Post-employment and long-term benefits movements during the years ended at December 31, 2019, 2018 and 2017 are as follows: Post-Employment benefits Long-term Benefits December December December December December December 31, 2019 31, 2018 31, 2017 31, 2019 31, 2018 31, 2017 Balance at the beginning of the year Ps. 541,226 Ps. 604,110 Ps. 509,022 Ps. 242,335 Ps. 229,770 Ps. 191,112 Service costs 14,567 13,127 4,425 22,860 21,040 18,201 Interests cost 37,138 36,700 50,826 14,252 13,460 12,889 Gain on settlements — (18,300) 253 — — (112) Past Service Costs (1) 1,018 (191) 200 (49,400) 1,632 (3,961) Ps. 593,949 Ps. 635,446 Ps. 564,726 Ps. 230,047 Ps. 265,902 Ps. 218,129 Changes in actuarial assumptions from changes in demographic assumptions 7,407 6,136 (8,863) — 388 (1,432) Changes in actuarial assumptions from changes in financial assumptions 54,674 (24,149) 109,095 (13,008) 11,831 43,870 Ps. 62,081 Ps. (18,013) Ps. 100,232 Ps. (13,008) Ps. 12,219 Ps. 42,438 Payments to employees (63,580) (79,709) (59,866) (30,706) (35,786) (30,797) Effect of movements in exchange rates (1,536) 3,502 (982) — — — Liability balance at the end of the year Ps. 590,914 Ps. 541,226 Ps. 604,110 Ps. 186,333 Ps. 242,335 Ps. 229,770 Plan Assets Recognition of the active plan (21,474) — — — — — Interests income (318) — — — — — Remeasurements on plan assets (859) — — — — — Effect of movements in exchange rates (105) — — — — — Balance at the end of the year plan assets Ps. (22,756) Ps. — Ps. — Ps. — Ps. — Ps. — Net Balance at the end of the year Ps. 568,158 Ps. 541,226 Ps. 604,110 Ps. 186,333 Ps. 242,335 Ps. 229,770 (1) The variation includes the effect of a change in a long-term institutional benefit plan at Banco de Bogotá, which went from being a defined benefit plan to a defined contribution plan, through which the bank makes monthly contributions into a fund created for each employee. The assumptions used to calculate the obligation projected for different post-employment benefits employees are as follows: December 31, December 31, Post-Employment Benefits 2019 2018 Discount interest rate 5.87 % 7.29 % Inflation rate 3.00 % 3.00 % Salary growth rate 4.00 % 3.00 % Pension growth rate 3.00 % 3.00 % Employee turnover rate (between service year 1 and 40 for men and women the following is the turnover rate) Tabla de Rotación Tabla de Rotación SoA 2003 (1) SoA 2003 (1) December 31, December 31, Long-Term Benefits 2019 2018 Discount interest rate 5.34 % 6.75 % Inflation rate 3.00 % 3.00 % Salary growth rate 4.00 % 3.00 % Pension growth rate N/A N/A Employee turnover rate (between service year 1 and 40 for men and women the following is the turnover rate) Tabla de Rotación Tabla de Rotación SoA 2003 (1) SoA 2003 (1) (1) For those entities where a sufficiently large statistic is not yet available to support the actuarial bases, the SoA2003 table is used as a reference. With this table, the probability of permanence of personnel in the entity is established, modified according to the population factor of each benefit. Employee´s life expectancy is calculated based on the mortality tables published by the Superintendency of Finance, which are based on mortality experiences provided to the Superintendency of Finance by several insurance companies operating in Colombia. The sensitivity analysis for post-employment and long-term benefits liabilities due to defined benefits plans to different actuarial and financial variables is shown below, maintaining other variables at constant values (increase or decrease 0.5%): -0.50 basic points At December 31, 2019 Post-Employment Long-Term Discount interest rate Ps. 24,833 Ps. 4,993 Salaries growth rate (5,057) (5,628) Retirement growth rate (14,827) N/A +0.50 basic points At December 31, 2019 Post-Employment Long-Term Discount interest rate Ps. (20,931) Ps. (4,721) Salaries growth rate 5,297 5,904 Retirement growth rate 18,921 N/A Future benefit payments projected, reflecting services, as the case may be, are expected to be paid as follows: Payments for Post- Payments for Long- Year Employment term Benefits Ps. 65,527 Ps. 30,418 58,646 24,672 58,776 25,342 56,645 24,512 55,602 27,014 Years 2025 – 2029 257,815 114,490

LEGAL AND OTHER PROVISIONS

LEGAL AND OTHER PROVISIONS	12 Months Ended
	Dec. 31, 2019
LEGAL AND OTHER PROVISIONS
LEGAL AND OTHER PROVISIONS	NOTE 23 – LEGAL AND OTHER PROVISIONS Roll-forward of legal provisions during the years ended on December 31, 2019, 2018 and 2017 are as follows: For Legal Other Provisions Total Provisions Balance as of December 31, 2016 Ps. 155,749 Ps. 464,607 Ps. Provisions increase during the year 32,670 222,349 255,019 Use of provisions (15,012) (117,643) (132,655) Amounts reversed due to provisions not utilized (7,870) (42,459) (50,329) Reclassifications (184) 408 224 Balance as of December 31, 2017 Ps. 165,353 Ps. 527,262 Ps. 692,615 Impact of the adoption of IFRS 9 (1) — 16,217 16,217 Balance as of January 01, 2018 Ps. 165,353 Ps. 543,479 Ps. 708,832 Provisions increase during the year 98,473 190,686 289,159 Use of provisions (73,086) (149,026) (222,112) Amounts reversed due to provisions not utilized (64,562) (19,852) (84,414) Effect of movements in exchange rates (249) 4,072 3,823 Balance as of December 31, 2018 Ps. 125,929 Ps. 569,359 Ps. 695,288 Impact of the adoption of IFRS 16 (1) — 32,107 32,107 Balance as of January 01, 2019 Ps. 125,929 Ps. 601,466 Ps. 727,395 Provisions increase during the year 116,627 177,606 294,233 Use of provisions (34,603) (52,296) (86,899) Amounts reversed due to provisions not utilized (13,296) (51,905) (65,201) Effect of movements in exchange rates 23 (909) (886) Balance as of December 31, 2019 Ps. 194,680 Ps. 673,962 Ps. 868,642 (1) See Notes 2 (2.4 (A and C)). Estimated period of time to be canceled Legal provisions Other provisions Total Within twelve months Ps. 3,496 Ps. 71,966 Ps. 75,462 After twelve months 191,184 601,996 793,180 Legal provisions: Administrative proceedings At December 31, 2019 and 2018 provisions were recorded for administrative proceedings for Ps.18,391 and Ps. 12,296 respectively, by way of claims for administrative or judicial processes of a tax nature, initiated by national and local authorities that establish, in some cases sanctions in which the subsidiaries of Grupo Aval would incur. Labor proceedings At December 31, 2019 and 2018 provisions were recorded for labor proceedings for Ps. 38,848 and Ps. 41,618 respectively. Labor proceedings include labor pursuits, indemnities for ex-employees against of several subsidiaries of Grupo Aval. The time expected for resolution is uncertain due to the fact that each proceeding is based on different instances, however, most cases are normally resolved in favor of Grupo Aval. Other proceedings At December 31, 2019 and 2018 other legal provisions were recorded for Ps. 137,441 and Ps. 72,015, respectively, being the most representative: · Provisions were made to cover claims for nullity of affiliations to the Porvenir´s for Ps. 105,118 and Ps. 20,937, respectively. · Litigation against Compañía Hotelera Cartagena de Indias for Ps. 24,815 for both periods, due to a legal action which pursued ordering the hotel to restitute an area of 37,018 square meters back to the State, on the basis that alleged improper transfer of land destined for the public use . Other provisions: At December 31, 2019 and 2018 other provisions recorded amounting Ps. 673,962 and Ps. 569,359, respectively, are mainly comprised by: · Provisions of Corficolombiana affiliates for Ps. 259,185 and Ps. 242,446, respectively, associated with the maintenance, restoration and rehabilitation of constructions and buildings, professional fees relating to development of concession contracts. · Provision of Porvenir´s subsidiary for Ps. 233,128 and Ps. 206,786 respectively, where the main provision balance corresponds to the undercapitalized accounts, these are individual accounts called "Fondo de Pensiones Obligatorias Especial Porvenir de Retiro Programado", which according to actuarial projections do not have the required balance to achieve minimum pension payment. · Provisions of several subsidiaries of Grupo Aval for Ps. 85,385 and Ps. 46,868, respectively, corresponding to the dismantling of ATMs and offices. · Provisions for Ps. 49,962 and Ps. 59,428 respectively, for provisions of losses on loan commitments (see note 4.1.5 Loan commitments and financial guarantee contracts)

OTHER LIABILITIES

OTHER LIABILITIES	12 Months Ended
	Dec. 31, 2019
OTHER LIABILITIES
Disclosure accounts payable and other liabilities	NOTE 24 – OTHER LIABILITIES Accounts payable and other liabilities of December 31, 2019 and 2018 comprise the following: Items December 31, 2019 December 31, 2018 Suppliers and services payable Ps. 1,877,694 Ps. 1,846,831 Income received for third parties (1) 1,338,265 453,450 Cashier checks 789,680 690,195 Dividends payable 631,111 535,311 Transactions ACH and ATH 585,526 605,657 Contract liability related to concessions 539,584 535,960 Non-financial liabilities 507,513 478,833 Withholdings taxes and labor contributions 471,201 427,782 Commissions and fees 290,160 430,279 Collection service 282,184 314,785 Collection on behalf of third parties (2) 250,769 1,514,309 Cash Surplus 235,840 167,309 Affiliate establishments 169,807 335,078 Customer loyalty programs (3) 150,846 154,979 Tax levies 86,568 71,691 Checks drawn and not paid 46,220 48,864 Anticipated income 39,427 34,605 Canceled accounts 28,524 26,987 Contributions and affiliations 27,004 28,785 Insurance payables 26,767 48,505 Financial transactions tax 22,280 45,905 Promissory buyers 8,601 18,371 Leases 5,778 7,347 Compensation to customers 2,102 3,191 Deferred credits 1,075 938 Other liabilities 314,856 182,006 Total Ps. 8,729,382 Ps. 9,007,953 (1) The increase presented is due to advance payments made by the Agencia Nacional de Infraestructura (ANI) for Ps. 857,990, which correspond to the resources of the autonomous patrimony of future validities, collections of tolls and financial returns. (2) The decrease shown as of December 31, 2019 is due to the fact that most of the withholding tax collections were transferred to the tax authority in the same year, an event that had not taken place in 2018. (3) The amount of customer loyalty points not exchanged has a validity of two years after being granted, which in redemption or expiration will be recognized as income. Other December 31, 2019 December 31, 2018 Liabilities to be canceled within twelve months 5,946,523 6,970,611 Liabilities to be canceled after twelve months 2,782,859 2,037,342 Total Ps. 8,729,382 Ps. 9,007,953

EQUITY ATTRIBUTABLE TO OWNERS O

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT	12 Months Ended
	Dec. 31, 2019
Disclosure of controlling interest equity [Abstract]
Disclosure of share capital, reserves and other equity interest [text block]	NOTE 25 – EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT Authorized, issued and outstanding shares as of December 31, 2019 and 2018 consisted of the following: December 31, 2019 December 31, 2018 Authorized shares 120,000,000,000 120,000,000,000 Subscribed fully paid shares 22,281,017,159 22,281,017,159 Total outstanding shares 22,281,017,159 22,281,017,159 The outstanding shares are as follows: Common voting shares (1) 15,137,789,974 15,164,816,696 Preferred non-voting shares (2) 7,143,227,185 7,116,200,463 (1) Common Voting shares with a nominal value of (Ps. 1) Colombian peso. (2) Since 2011, Grupo Aval allows its shareholders to convert their common shares into preferred shares. For the years ended December 31, 2019 and 2018, 27,026,722 and 8,364,069 common shares were converted into preferred shares, respectively. Preferred shares have the right to receive a preferential minimum dividend of one Colombian peso (Ps. 1) per semester per share. This preferential minimum dividend is only applicable when dividends declared for common shares are less than one Colombian peso (Ps. 1). Preferential minimum dividends are not cumulative. 25.1 Appropriated retained earnings As of December 31, 2019, and 2018 the appropriation of retained earnings is as follows: December 31, 2019 December 31, 2018 Retained earnings Ps. 2,475,939 Ps. 2,321,729 Withholding Tax over dividends (14,344) — Legal reserve 11,140 11,140 Statutory and voluntary reserves 7,816,338 6,265,450 Ps. 10,289,073 Ps. 8,598,319 25.1.1 Legal Reserve In accordenace with current legal regulations, Grupo Aval and its subsidiaries in Colombia shall create a legal reserve through the appropriation of (10%) of the net profits of each year up to an amount equal to (50%) of the subscribed capital stock. This reserve may be reduced below (50%) of the subscribed capital stock to stem losses in excess of retained earnings. The legal reserve cannot be less than the percentage aforementioned except to cover losses in excess of retained earnings. 25.1.2 Statutory and Voluntary Reserves The Statutory and voluntary reserves are determined during the Shareholders Meetings. 25.2 Declared Dividends The dividends are decreed and paid to shareholders based on occasional reserves available to the Board, the dividends decreed were as follows December 31, 2018 December 31, 2017 December 31, 2016 Net income for the periods ended in Ps. 2,887,749 Ps. 2,001,178 Ps. 1,053,594 Cash dividends declared In the general assembly held in March 2019, 60.00 pesos per share payable in twelve installments of 5.00 pesos per share, from April 2019 to March 2020. In the general assembly held in March 2018, 48.00 pesos per share payable in twelve installments of 4.00 pesos per share, from April 2018 to March 2019. In the general assembly held in March 2017, 58.80 pesos per share payable in twelve installments of 4.90 pesos per share, from April 2017 to March 2018. Total outstanding shares 22,281,017,159 22,281,017,159 22,281,017,159 Total dividends declared Ps. 1,336,861 Ps. 1,069,489 Ps. 1,310,124 25.3 Earnings per share · Basic earnings per share Grupo Aval calculates basic earnings per share by dividing net income for the year attributable to controlling interest of Grupo Aval parent company by the weighted average number of shares outstanding during the year (including common and preferred shares). The following table summarizes the earnings per share for the year ended as of December 31, 2019, 2018 and 2017: December 31, 2019 December 31, 2018 December 31, 2017 Net income for the year Ps. 5,365,454 Ps. 5,184,551 Ps. 3,162,433 Less: participation of non- controlling interests (2,331,045) (2,271,857) (1,200,019) Net income attributable to owners of the parent 3,034,409 2,912,694 1,962,414 Less: preferred dividends declared — — — Less: Allocation of undistributed earnings to preferred stockholders (1)(2) (970,070) (929,656) (622,215) Net Income allocated to common shareholders for basic and diluted EPS Ps. 2,064,339 Ps. 1,983,038 Ps. 1,340,199 Weighted average number of common shares outstanding used in basic EPS calculation (2) 15,158,004,812 15,169,502,784 15,216,468,601 Basic and Diluted earnings per share to common shareholders (pesos) 136.188 130.725 88.076 Basic and Diluted earnings per ADS in Colombian pesos (3) 2,723.76 2,614.51 1,761.51 Weighted average of the common and preferred shares used in the calculation of earnings per basic share (common and preferred) 22,281,017,159 22,281,017,159 22,281,017,159 Basic earnings of the owners of the parent per share in Colombian pesos 136.188 130.725 88.076 (1) Based on a weighted average of preferred shares. (2) Averages based on an end of month number of preferred or common shares. (3) Each ADS represents 20 preferred shares. · Diluted earnings per share At December 31, 2019, 2018 and 2017, Grupo Aval did not have any dilutive instruments. 25.4 Equity transactions On September 30, 2019, some transactions took place which resulted in changes to the interests which Grupo Aval and its subsidiaries have on the following investments: The Board of Directors of Proyectos de Infraestructura - PISA S.A. authorized the purchase of 290,061,750 minority shares equivalent to 49.50% of Concesiones CCFC S.A.S., for a value of 67,097 million, with which PISA S.A. increased its ownership from 50.50% to 100% of CCFC S.A.S. During Corficolombiana´s dividend distribution process, Grupo Aval and its subsidiaries received dividends in shares, unlike some minority shareholders who chose to receive the dividend payment in cash, generating a dilution effect at a consolidated level for Grupo Aval, which resulted in a modification of its participation going from 38.25% to 38.63%. 25.5 Consolidated Other Comprehensive Income (OCI): Components of Accumulated Other Comprehensive Income for the years ended December 31, 2019, 2018 and 2017 are as follows: Net gain (loss) on hedges of net investment in foreing operations Cash flow hedges Foreing currency translation differences from unhedged foreign operations Effect of moving investment properties for own use Unrealized gains (losses) debt securities Unrealized gains (losses) Equitysecurities Investments in associates and join ventures Actuarial gains(losses) Income tax Total comprehensive income, net of taxes Beginning balance 2016 Ps. (207,527) Ps. 7,786 Ps. (74,911) Ps. — Ps. (272,216) Ps. 489,884 Ps. 91,509 Ps. (32,225) Ps. 1,276,840 Ps. 1,279,140 Current-period change 203 (2,340) (91,497) — 284,480 57,245 1,128 (100,232) (73,617) 75,370 Ending balance 2017 Ps. (207,324) Ps. 5,446 Ps. (166,408) Ps. — Ps. 12,264 Ps. 547,129 Ps. 92,637 Ps. (132,457) Ps. 1,203,223 Ps. 1,354,510 Change in accounting policy — — — — 56,198 71,229 (3,691) — (19,723) 104,013 Current-period change 541 (19,789) (299,804) — (107,084) (134,084) 22,400 18,013 310,056 (209,751) Ending balance 2018 Ps. (206,783) Ps. (14,343) Ps. (466,212) Ps. — Ps. (38,622) Ps. 484,274 Ps. 111,346 Ps. (114,444) Ps. 1,493,556 Ps. 1,248,772 Current-period change (2,931) 13,469 128,135 5,288 426,300 237,781 (9,061) (61,222) (36,029) 701,730 Ending balance 2019 Ps. (209,714) Ps. (874) Ps. (338,077) Ps. 5,288 Ps. 387,678 Ps. 722,055 Ps. 102,285 Ps. (175,666) Ps. 1,457,527 Ps. 1,950,502 Non -controlling interest Owners of the parent Total comprehensive income, net of taxes Beginning balance 2016 Ps. 529,523 Ps. 749,617 Ps. 1,279,140 Current-period change 38,121 37,249 75,370 Ending balance 2017 Ps. 567,644 Ps. 786,866 Ps. 1,354,510 Change in accounting policy 58,180 45,833 104,013 Current-period change (73,825) (135,926) (209,751) Ending balance 2018 Ps. 551,999 Ps. 696,773 Ps. 1,248,772 Current-period change 305,056 396,674 701,730 Ending balance 2019 Ps. 857,055 Ps. 1,093,447 Ps. 1,950,502

NON-CONTROLLING INTEREST

NON-CONTROLLING INTEREST	12 Months Ended
	Dec. 31, 2019
Disclosure of non-controlling interest [Abstract]
Disclosure of interests in subsidiaries [text block]	NOTE 26 - NON- CONTROLLING INTEREST The following table includes financial information regarding each subsidiary of Grupo Aval that has significant non-controlling interests at December 31, 2019 and 2018: December 31, 2019 Non-controlling Non-controlling Dividends paid to non- Non-controlling Interest share of interest share of controlling interest in Entity Country Interest equity net income the year Corporación Financiera Colombiana S.A. Colombia 61.37 % Ps. 6,045,690 Ps. 1,231,081 Ps. (319,429) Banco Bogotá S.A. Colombia 31.26 % 5,813,830 876,732 (381,111) Banco de Occidente S.A. Colombia 27.73 % 1,068,830 156,587 (78,235) Banco Comercial AV Villas S.A. Colombia 20.13 % 348,711 46,705 (16,508) Banco Popular S.A. Colombia 6.26 % 220,641 19,940 (9,019) Total Ps. 13,497,702 Ps. 2,331,045 Ps. (804,302) December 31, 2018 Non-controlling Non-controlling Dividends paid to non- Non-controlling Interest share of interest share of controlling interest in Entity Country Interest equity net income the year Corporación Financiera Colombiana S.A. Colombia 61.75 % Ps. 5,071,562 Ps. 1,222,634 Ps. (308,254) Banco Bogotá S.A. Colombia 31.26 % 5,851,536 858,253 (332,297) Banco de Occidente S.A. Colombia 27.73 % 305,790 110,321 (75,838) Banco Comercial AV Villas S.A. Colombia 20.13 % 324,151 43,896 (15,425) Banco Popular S.A. Colombia 6.26 % 211,600 36,753 (14,118) Total Ps. 11,764,639 Ps. 2,271,857 Ps. (745,932) The following table includes information regarding each subsidiary of Grupo Aval that has significant non-controlling interests to December 31, 2019 and 2018 (before eliminations): December 31, 2019 Cash Flow from Entity Assets Liabilities Total Income Net Income OCI - Controlling operating activities Corporación Financiera Colombiana S.A. Ps. 31,809,578 Ps. 21,841,524 Ps. 10,244,488 Ps. 2,004,164 Ps. 780,447 Ps. 2,006,112 Banco Bogotá S.A. 175,019,580 153,159,578 19,207,112 3,073,654 1,378,393 6,671,466 Banco de Occidente S.A. 42,577,698 37,708,620 4,296,870 568,059 102,338 (570,873) Banco Comercial AV Villas S.A. 15,207,537 13,412,397 1,823,204 236,624 62,949 231,652 Banco Popular S.A. Ps. 25,117,577 Ps. 22,047,597 Ps. 2,757,661 Ps. 302,120 Ps. 2,134 Ps. (931,478) December 31, 2018 Cash Flow from Entity Assets Liabilities Total Income Net Income OCI - Controlling operating activities Corporación Financiera Colombiana S.A. Ps. 26,240,636 Ps. 18,121,948 Ps. 9,159,971 Ps. 2,068,518 Ps. 505,807 Ps. 4,597,371 Banco Bogotá S.A. 163,302,510 143,634,735 17,725,706 3,131,213 853,134 2,868,435 Banco de Occidente S.A. 38,921,610 34,415,453 4,040,260 416,294 29,097 339,411 Banco Comercial AV Villas S.A. 14,207,481 12,587,301 1,724,332 216,468 38,065 858,440 Banco Popular S.A. Ps. 24,648,668 Ps. 21,757,734 Ps. 2,666,731 Ps. 354,961 Ps. (7,631) Ps. 1,106,042

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2019
Disclosure of Commitments and Contingencies [Abstract]
Disclosure of commitments and contingent liabilities [text block]	NOTE 27 – COMMITMENTS AND CONTINGENCIES The outcomes of the following legal processes are being categorized as “possible” in accordance with IAS 37. Capital Expenses Commitments As of December 31, 2019, and 2018, Grupo Aval and its subsidiaries had contractual disbursement commitments of capital expenditures for Ps. 311,729 and Ps. 127,367, respectively. Contingencies As of December 31, 2019, and 2018, Grupo Aval and its subsidiaries was part of administrative and legal proceedings as defendant; the claims of the proceedings were assessed based on analyses and opinions of responsible lawyers. The following legal contingencies were determined: Labor Proceedings As of December 31, 2019, and 2018, labor complaints had been recognized for Ps. 85,663 and Ps. 80,113 respectively. Historically, the majority of these proceedings have been resolved in favor of Grupo Aval and its subsidiaries. Civil Proceedings As of December 31, 2019, and 2018, the result of the assessment of the claims of legal proceedings for civil suits, not including those with remote probability, reached an amount of Ps. 305,198 and Ps. 391,310 respectively. Administrative, Tax Proceedings and Other Proceedings Claims derived from administrative and judicial processes include those of fiscal responsibility over concession contracts, tax proceedings and others. Filed with national and local tax authorities. These authorities may establish, in some cases, sanctions in which Grupo Aval and its subsidiaries may incur as a result of: (i) the performance of their duty as a withholder or collector of national and local taxes, and/or (ii) a higher value in their obligations as taxpayers. As of December 31, 2019, and 2018, the amount of the claims reached the sum of Ps. 64,077 and Ps. 241,092 respectively. Other matters The outcomes of the following legal processes are not being categorized as “possible” in accordance with IAS 37, however, they are being disclosed herein in attention to their relevance. Investigation of the Superintendency of Industry and Commerce in relation to the Ruta del Sol Project Sector 2 On September 13, 2018, the Superintendency of Industry and Commerce ("SIC") issued Resolution No. 67837 ordering an investigation and formulating charges against a number of individuals and entities, including Grupo Aval Acciones y Valores S.A. ("Grupo Aval"), Corporación Financiera Colombiana S.A. ("Corficolombiana"), Estudios y Proyectos del Sol S.A.S. ("Episol"), a company 100% owned by Corficolombiana and Concesionaria Ruta del Sol (CRDS), a company in which Corficolombiana participates with 33%. Likewise, the SIC decided to charge some current and former officials of Corficolombiana and Grupo Aval, including José Elías Melo Acosta, Luis Carlos Sarmiento Gutiérrez and Diego Fernando Solano Saravia. The SIC argues alleged violations of the Colombian legal regime of free economic competition in the bidding process for the awarding of the Ruta del Sol Sector 2 Project. As a result of the above, the SIC formulated two charges against Corficolombiana, two charges against Episol, one charge against CRDS and one charge against Grupo Aval. The formulation of charges made by the SIC corresponds to the opening of a formal investigation which, after the different stages of the proceeding are conducted, may result in the dismissal of the charges or in the imposition of economic sanctions. In this regard, numeral 15 of article 4 of Decree 2153 of 1992, modified by article 25 of Law 1340 of 2009, provides that for the violation of any of the provisions on protection of competition, the SIC may impose sanctions up to the amount of 100,000 current monthly minimum wages (currently Ps. 87,780 for each charge) or, if it turns out to be greater, up to 150% of the profits derived from the conduct by the offender. In case of an unfavorable decision, the maximum amount of an eventual penalty would impact the net attributable profit of Grupo Aval in Ps.234,602. Grupo Aval, Corficolombiana and Episol, as well as their officials subject to the investigation, submitted their respective defenses in October 2018, accompanied by documentary evidence and requests for the practice of evidence to debate the reasons that led the SIC to these accusations. On August 5, 2019, through Resolution 33788, the SIC initiated the evidence stage which concluded on December 19, 2019. The next phase of the investigation corresponds to the submission of a report (“Informe Motivado”) by the Deputy Superintendent for the Protection of Competition with the conclusions about the investigation and the recommendation to the Superintendent of Industry and Commerce. In accordance with the regulations applicable to the aforementioned administrative investigation, the report that the Deputy Superintendent submits to the Superintendent of Industry and Commerce must be notified to the investigated parties and to third parties accredited as such in the process. Such parties will be provided with a 20 days period for the formulation of observations to the report. Even though it is not possible to establish the time it will take the Deputy Superintendent to issue the report and the SIC to make a decision in relation to this case, it is expected that it will be resolved this year. There is also no certainty about the assessment of this contingency, since it will be the result of the investigation and analysis of the SIC in relation to the evidence and various documents of defense that were filed, which will lead to the dismissal of the charges or the possible imposition of a fine and graduation of the same. Class Action before the Administrative Tribune of Cundinamarca in connection with the Ruta del Sol Project Sector 2 On January 26, 2017, the Procurator-General Office (Procuraduría General de la Nación or “PGN”) filed a class action against CRDS, (a company formed by Construtora Norberto Odebrecht S.A., Odebrecht Investimentos em Infraestructura Ltda., CSS Constructores S.A. and Episol), the National Infrastructure Agency ("ANI") and its members, for the violation of the collective rights of administrative morality, defense of public patrimony and access to public services, action that was conducted before the first section of the Administrative Tribunal of Cundinamarca ("TAC" ). On December 6, 2018 the TAC, issued a first instance ruling in the referred class action against CRDS, and its shareholders including Episol, and other individuals and entities, including the former President of Corficolombiana, Jose Elias Melo Acosta. In its ruling, the TAC found the defendants jointly and severally liable for the damages caused to the collective interests and ordered the payment of Ps. 800,156 in favor of the Nation-Ministry of Transportation. Likewise, the TAC debarred the defendants for a term of ten years to contract with the Colombian government and to hold positions in public office. Subsequently, by order of February 8, 2019 alleging arithmetical errors in its ruling, the TAC corrected the amount of the sentence reducing it to an amount of Ps. 715,656. The aforementioned ruling is not final since several appeals were filed against it by Episol and the other defendants, which were granted by the TAC on February 25, 2019 and it will be up to the Consejo de Estado (Colombia’s Supreme Court on administrative matters) to issue a final decision in this regard. By order of February 14, 2020, the Consejo de Estado ruled in relation to the effects of the appeal, stating that the provisions of the first instance ruling regarding the delivery of money or other goods and the provisions in relation to the debarment from government contracting would only be enforceable in the event of a duly executed second instance ruling confirming the decision appealed. In the case of Episol, the appeal filed argues multiple substantive and procedural defects in accordance with which it argues that the decisions against it should be revoked. It is not possible to establish the time it will take for the Consejo de Estado to make a decision in relation to this case. In the event that the decision of the TAC is confirmed and that Episol is compelled to assume the entire amount of the sentence, the maximum impact to the net attributable profit of Grupo Aval would be Ps. 276,445. Investigations by United States authorities The Department of Justice of the United States ("DOJ") and the United States Securities and Exchange Commission ("SEC") informed Grupo Aval that they had opened an investigation on matters related to the Ruta del Sol II project. Grupo Aval is cooperating with the DOJ and the SEC in these investigations. It is not possible to predict the decisions that the DOJ or the SEC will take as a result of the issues that are the subject of these investigations, nor the impact that such investigations and their outcome may have on Grupo Aval and / or its subsidiaries entities.

INCOME FROM CONTRACTS WITH CUST

INCOME FROM CONTRACTS WITH CUSTOMERS	12 Months Ended
	Dec. 31, 2019
Income From Contract With Customers [Abstract]
Disclosure of revenue from contracts with customers [text block]	NOTE 28 – INCOME FROM CONTRACTS WITH CUSTOMERS Below is a detail of the income and expenses for commissions and fees of contracts with customers for the years ended as of December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Income from commissions and fees 2019 2018 2017 Commissions on banking services Ps. 3,006,506 Ps. 2,718,482 Ps. 2,567,704 Fees on credit cards 1,364,244 1,187,716 1,112,319 Pension and severance fund management 1,129,391 987,323 926,771 Trust activities 334,910 312,901 311,837 Storage services 161,298 156,638 169,815 Commissions on drafts, checks and checkbooks 50,026 49,645 60,768 Office network services 24,618 30,220 42,639 Other commissions 12,350 10,457 10,272 Total inco me from commissions and fees(*) Ps. 6,083,343 Ps. 5,453,382 Ps. 5,202,125 (*) See note 31.6 December 31, December 31, December 31, Expenses from commissions and fees 2019 2018 2017 Banking services Ps. (311,098) Ps. (307,191) Ps. (332,811) Sales and services commissions (184,481) (171,680) (119,987) Fees paid to pension funds sales forces (94,285) (75,130) (74,531) Information processing services of operators (17,969) (22,525) (23,039) Offices network services (8,508) (23,040) (29,874) Collection service of contributions to financial entities (1,177) (7,110) (5,618) Banks guarantees (18) (128) (88) Fiduciary businesses (61) (46) (41) Credit cards (6) (12) (2) Other (10,396) (6,901) (37,123) Total expenses from commissions and fees Ps. (627,999) Ps. (613,763) Ps. (623,114) Net income from commissions and fees Ps. 5,455,344 Ps. 4,839,619 Ps. 4,579,011 Below is the detail of the income and cost for goods and services for the years ended as of December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Income from sales of goods and services 2019 2018 2017 Energy and gas E&G Ps. 4,524,903 Ps. 3,411,674 Ps. 2,908,292 Infrastructure 3,783,534 3,826,101 2,290,786 Hotels 366,835 332,749 236,760 Agribusiness 135,928 133,095 87,800 Others Services 205,813 239,801 132,833 Others operating income 139,575 182,594 136,379 Total income from sales of good and services (*) Ps. 9,156,588 Ps. 8,126,014 Ps. 5,792,850 (*) See note 31.6 December 31, December 31, December 31, Costs and expenses of sales goods and services 2019 2018 2017 Cost of sales of companies from non-financial sector Ps. (5,041,089) Ps. (3,812,993) Ps. (3,408,808) Allowance for impairment of loans and receivables (43,401) (21,829) (22,239) General and administrative expenses (659,262) (645,690) (668,616) Personnel expenses (555,038) (499,750) (481,892) Amortization (267,808) (317,035) (300,325) Depreciation (98,963) (100,388) (79,981) Depreciation right of use assets (30,425) — — Bonus payments (36,300) (34,503) (34,436) Commissions and fees expenses (30,885) (32,876) (24,361) Donations expenses (14,704) (14,320) (12,604) Labor severances (3,902) (2,718) (2,565) Total costs and expenses of sales goods and services Ps. (6,781,777) Ps. (5,482,102) Ps. (5,035,827) Gross profit from sales of goods and services Ps. 2,374,811 Ps. 2,643,912 Ps. 757,023

NET TRADING INCOME

NET TRADING INCOME	12 Months Ended
	Dec. 31, 2019
Disclosure of Net Trading Income [Abstract]
Disclosure of trading income [text block]	NOTE 29 – NET TRADING INCOME Net trading income includes income from client driven trading activities primarily conducted in markets, including foreign exchange, credit, rates and equities trading, as follows: December 31, December 31, December 31, 2019 2018 2017 Trading investment income (1) Fixed income securities Ps. 270,310 Ps. 98,024 Ps. 218,994 Equities 349,526 57,477 177,448 Total trading investment income Ps. 619,836 Ps. 155,501 Ps. 396,442 Derivatives income Net income (loss) on financial derivatives (2) Ps. 19,932 Ps. 247,880 Ps. (75,224) Other trading income (3) 122,143 179,328 240,144 Total derivatives income Ps. 142,075 Ps. 427,208 Ps. 164,920 Total net trading income Ps. 761,911 Ps. 582,709 Ps. 561,362 (1) Includes net trading income from investment securities held for trading, that reflects the interest from investment in debt securities, gains/losses from mark-to-market valuation from investment in equity and debt securities and net income from trading activities. (2) Includes net trading income from derivatives, which reflects the gains/losses from mark-to-market valuation on trading derivatives. (3) Includes gains/losses from: (i) Net changes in the valuation of hedging derivatives from mark-to-market valuations from unhedged, (ii) the ineffective portion of the hedge, (iii) Transfers of due hedging derivatives from OCI to the statement of income.

OTHER INCOME AND EXPENSE

OTHER INCOME AND EXPENSE	12 Months Ended
	Dec. 31, 2019
Disclosure of other income and expense [abstract]
Disclosure of other operating income (expense) [text block]	NOTE 30 – OTHER INCOME AND EXPENSE Below is a detail of the other income and expense in the years ended December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Other Income 2019 2018 2017 Foreign exchange gains (losses), net Ps. 312,267 Ps. 283,440 Ps. 424,483 Share of profit of equity accounted investees, net of tax 229,626 197,715 171,964 Net gain on sale of debt and equity securities (1) 198,562 1,104 51,712 Dividends 84,686 71,487 50,439 Gain on the sale of non-current assets held for sale 23,381 20,062 13,568 Gain on sale of property, plant and equipment (2) 24,381 390,472 10,581 Net gain in assets valuation 14,151 37,307 39,012 Other income 395,909 357,094 389,986 Total other income Ps. 1,282,963 Ps. 1,358,681 Ps. 1,151,745 (1) The increase of Ps. 197,458 is due to the realization of the gains recognized in OCI for the sale of fixed income investments. (2) The year 2018 includes the recognition of income from sales with subsequent leasing of assets in Banco de Bogota by Ps. 312,316 and Ps. 60,474 in Banco Popular . December 31, December 31, December 31, Other Expense 2019 2018 2017 Personnel expenses Ps. (4,085,396) Ps. (3,877,584) Ps. (3,671,117) Taxes and fees (914,476) (757,936) (731,316) Affiliation contributions and transfers (664,835) (511,811) (429,825) Consultancy, audit and other fees (661,645) (569,276) (460,978) Maintenance and repairs (458,522) (378,433) (392,271) Depreciation of tangible assets (416,946) (378,218) (383,911) Wealth tax (1) — — (101,988) Insurance (382,322) (375,611) (351,745) Marketing (351,104) (327,539) (314,657) Depreciation right of use assets (2) (292,771) — — Warehouse services (277,574) (270,223) (277,849) Amortization of intangible assets (191,768) (161,533) (137,497) Transportation services (184,720) (181,687) (166,429) Leases (Rent) (175,002) (476,590) (431,507) Outsourcing services (149,280) (128,495) (128,656) Cleaning and security services (137,721) (126,822) (131,451) Supplies and stationary (103,104) (85,128) (82,113) Data processing (83,542) (81,426) (73,872) Adaptation and installation (58,904) (55,815) (62,809) Travel expenses (58,663) (52,584) (48,193) Impairment losses other assets (3) (20,755) (166,300) (174,255) Loss from sale of non-current assets held for sale (4,392) (5,200) (6,957) Other (497,907) (402,822) (443,695) Total other expense Ps. (10,171,349) Ps. (9,371,033) Ps. (9,003,091) (1) Grupo Aval and its subsidiaries in Colombia were subject to wealth tax for the year 2017 by law 1739 of 2014. (2) The Group adopted IFRS 16 on January 1, 2019. (See Note 2.4A) (3) The year 2018 includes the provision of investment in Concesionaria Ruta del Sol S.A.S at 100%.

ANALYSIS OF OPERATING SEGMENTS

ANALYSIS OF OPERATING SEGMENTS	12 Months Ended
	Dec. 31, 2019
Disclosure of operating segments [abstract]
Disclosure of operating segments [text block]	NOTE 31 – ANALYSIS OF OPERATING SEGMENTS Operating segments are components of Grupo Aval responsible for developing commercial activities that can generate revenue or incur expenses and whose operating profit or loss are regularly reviewed by the Board of Directors of Grupo Aval, and for which financial information is available: 31.1 Description of products and services from which each reportable segment derives its income Grupo Aval is organized into five business segments comprised by the four main banks of Grupo Aval: Banco de Bogotá, Banco de Occidente, Banco AV Villas, Banco Popular and Corficolombiana. All these banks and Corficolombiana, provide services relating to banking activities in Colombia and others countries in commercial, consumer, mortgage housing and microcredit banking. Corficolombiana´s core business is the active management of an equity portfolio. 31.2 Factors used by management to identify reportable segments Operating segments identified above are based on the strategic organization of Grupo Aval in order to serve different sectors of the economy in Colombia and América Central. 31.3 Measurement of net income, assets and liabilities of operating segments The Board of Directors of Grupo Aval reviews the financial information of each of its operating segments and assesses the performance of each segment based on Statements of Financial Position and the Statement of Income of each of them, and on certain credit risk indicators, as described in note 2.31. 31.4 Information on net income, assets and liabilities of reportable operating segments The following is the detail of the reportable financial information summarized for each segment as of December 31, 2019, 2018 and 2017: Statement of Financial Position December 31, 2019 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Assets Trading assets Ps. 4,199,830 Ps. 2,730,366 Ps. 284,790 Ps. 295,234 Ps. 1,729,563 Ps. 187 Ps. (126,302) Ps. 9,113,668 Investment securities 14,721,063 4,487,707 2,556,181 1,675,897 3,316,757 — (757,294) 26,000,311 Hedging derivatives assets 163,004 — — — 3,594 — — 166,598 Investments in associates and joint ventures 4,752,358 1,434,246 486,524 3,027 752,060 405 (6,440,658) 987,962 Loans, net 113,110,128 29,374,122 19,260,152 11,671,190 2,115,859 — (1,589,134) 173,942,317 Other assets 38,073,197 4,551,257 2,529,930 1,562,189 23,891,745 4,129,975 (6,116,560) 68,621,733 Total assets Ps. 175,019,580 Ps. 42,577,698 Ps. 25,117,577 Ps. 15,207,537 Ps. 31,809,578 Ps. 4,130,567 Ps. (15,029,948) Ps. 278,832,589 Liabilities Customer deposits 117,794,986 28,726,381 16,988,939 11,851,426 4,067,504 — (3,937,815) 175,491,421 Financial obligations 29,359,125 7,195,231 3,955,801 1,078,588 12,152,007 4,484,293 (3,380,469) 54,844,576 Other liabilities 6,005,467 1,787,008 1,102,857 482,383 5,622,013 519,887 (371,292) 15,148,323 Total liabilities Ps. 153,159,578 Ps. 37,708,620 Ps. 22,047,597 Ps. 13,412,397 Ps. 21,841,524 Ps. 5,004,180 Ps. (7,689,576) Ps. 245,484,320 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. Statement of income for 2019 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 12,279,546 Ps. 3,107,030 Ps. 2,297,087 Ps. 1,460,981 Ps. 407,843 Ps. 248 Ps. — Ps. 19,552,735 Income from commissions and fees 4,948,265 423,571 263,985 281,324 77,012 89,186 — 6,083,343 Income from sales of goods and services 107,012 58,947 — (5,466) 8,996,095 — — 9,156,588 Share of profit of equity accounted investees, net of tax 10,633 4,272 5,232 3,819 205,674 (4) — 229,626 Dividends 4,878 336 1,155 1,795 76,522 — — 84,686 Other income 1,183,179 262,541 97,372 53,340 348,779 2,967 — 1,948,178 Ps. 18,533,513 Ps. 3,856,697 Ps. 2,664,831 Ps. 1,795,793 Ps. 10,111,925 Ps. 92,397 Ps. — Ps. 37,055,156 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 95,675 Ps. 13,344 Ps. 13,411 Ps. 3,441 Ps. 128,352 Ps. 79 Ps. (254,302) Ps. — Income from commissions and fees 4,339 8,328 2,904 18,905 1,474 68,227 (104,177) — Income from sales of goods and services 1,968 164,635 — 5,466 5,866 — (177,935) — Share of profit of equity accounted investees, net of tax 513,721 246,576 73,370 (3,997) 1,665 — (831,335) — Dividends 5,288 2,022 2,925 2,053 105 — (12,393) — Other income 52,608 5,268 220 1,543 (4,899) 88,628 (143,368) — 673,599 440,173 92,830 27,411 132,563 156,934 (1,523,510) — Total income Ps. 19,207,112 Ps. 4,296,870 Ps. 2,757,661 Ps. 1,823,204 Ps. 10,244,488 Ps. 249,331 Ps. (1,523,510) Ps. 37,055,156 Expenses Interest expense Ps. (4,879,514) Ps. (1,228,385) Ps. (880,056) Ps. (421,033) Ps. (925,197) Ps. (240,723) Ps. 307,691 Ps. (8,267,217) Loans and other accounts receivable (2,767,818) (867,085) (350,302) (269,269) (11,598) — 72,092 (4,193,980) Depreciation and amortization (631,835) (107,651) (82,028) (65,455) (7,789) (10,135) 3,408 (901,485) Expenses from commissions and fees (382,972) (85,289) (65,713) (137,275) (12,737) (4,419) 60,406 (627,999) Costs and expenses of sales goods and services (235,928) (305,866) — — (6,256,833) 20,755 (3,905) (6,781,777) Administrative expenses (3,406,083) (725,963) (640,153) (392,862) (85,533) (279,356) 575,643 (4,954,307) Other expense (2,830,267) (347,474) (384,756) (195,290) (137,701) 366,572 (347,764) (3,876,680) Income tax expense (999,041) (61,098) (52,533) (105,396) (802,936) (62,399) (2,854) (2,086,257) Total expenses (16,133,458) (3,728,811) (2,455,541) (1,586,580) (8,240,324) (209,705) 664,717 (31,689,702) Net income for the year Ps. 3,073,654 Ps. 568,059 Ps. 302,120 Ps. 236,624 Ps. 2,004,164 Ps. 39,626 Ps. (858,793) Ps. 5,365,454 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Revenue from contracts with customers (2) Ps. 5,060,573 Ps. 651,537 Ps. 266,889 Ps. 300,229 Ps. 8,679,277 Ps. 437,415 Ps. (155,989) Ps. 15,239,931 Timing of revenue recognition At a point in time 232,277 31,763 22,784 83,687 116,974 436,504 (365,398) 558,591 Over time 4,828,296 619,774 244,105 216,542 8,562,303 911 209,409 14,681,340 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. (2) Income from contracts with customers, see note 28. Statement of Financial Position December 31, 2018 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Assets Trading assets Ps. 3,086,060 Ps. 1,670,934 Ps. 235,283 Ps. 302,226 Ps. 1,987,205 Ps. 212 Ps. (77,608) Ps. 7,204,312 Investment securities 11,238,754 5,070,964 2,900,778 1,225,551 3,189,297 — (595,185) 23,030,159 Hedging derivatives assets 32,981 — — — 43 — (2,886) 30,138 Investments in associates and joint ventures 4,157,015 1,247,935 396,289 2,347 759,222 — (5,580,065) 982,743 Loans, net 111,018,238 26,996,654 18,287,166 11,027,826 2,575,561 — (1,219,791) 168,685,654 Other assets 33,769,462 3,935,123 2,829,152 1,649,531 17,729,308 3,924,117 (4,094,546) 59,742,147 Total assets Ps. 163,302,510 Ps. 38,921,610 Ps. 24,648,668 Ps. 14,207,481 Ps. 26,240,636 Ps. 3,924,329 Ps. (11,570,081) Ps. 259,675,153 Liabilities Customer deposits Ps. 108,404,522 Ps. 25,592,232 Ps. 17,571,388 Ps. 11,425,400 Ps. 3,805,028 Ps. — Ps. (2,439,119) Ps. 164,359,451 Financial obligations 28,560,065 6,881,717 3,139,013 647,872 9,673,342 4,376,021 (2,066,040) 51,211,990 Other liabilities 6,670,148 1,941,504 1,047,333 514,029 4,643,578 443,591 (710,819) 14,549,364 Total liabilities Ps. 143,634,735 Ps. 34,415,453 Ps. 21,757,734 Ps. 12,587,301 Ps. 18,121,948 Ps. 4,819,612 Ps. (5,215,978) Ps. 230,120,805 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. Statement of Income for the year 2018 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 11,136,903 Ps. 3,087,525 Ps. 2,192,941 Ps. 1,383,023 Ps. 556,068 Ps. 176 Ps. — Ps. 18,356,636 Income from commissions and fees 4,394,989 399,785 245,721 261,769 77,936 73,182 — 5,453,382 Income from sales of goods and services 130,007 65,916 12,124 — 7,917,967 — — 8,126,014 Share of profit of equity accounted investees, net of tax 6,126 2,688 3,083 2,550 183,268 — — 197,715 Dividends 4,855 286 2,314 1,399 62,633 — — 71,487 Other income 1,211,601 152,866 132,562 53,724 324,524 2,714 — 1,877,991 Ps. 16,884,481 Ps. 3,709,066 Ps. 2,588,745 Ps. 1,702,465 Ps. 9,122,396 Ps. 76,072 Ps. — Ps. 34,083,225 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 58,463 Ps. 10,971 Ps. 3,681 Ps. 1,726 Ps. 30,590 Ps. 144 Ps. (105,575) Ps. — Income from commissions and fees 5,977 9,395 6,760 19,992 1,350 80,403 (123,877) — Income from sales of goods and services 580 109,927 — — 5,767 — (116,274) — Share of profit of equity accounted investees, net of tax 562,070 180,142 57,340 (3,230) 1,151 — (797,473) — Dividends 12,894 2,414 9,355 1,614 1,211 — (27,488) — Other income 201,241 18,345 850 1,765 (2,494) 53,808 (273,515) — 841,225 331,194 77,986 21,867 37,575 134,355 (1,444,202) — Total income Ps. 17,725,706 Ps. 4,040,260 Ps. 2,666,731 Ps. 1,724,332 Ps. 9,159,971 Ps. 210,427 Ps. (1,444,202) Ps. 34,083,225 Expenses Interest expense Ps. (4,328,845) Ps. (1,135,189) Ps. (850,707) Ps. (370,015) Ps. (781,037) Ps. (222,519) Ps. 203,471 Ps. (7,484,841) Loans and other accounts receivable (2,610,893) (1,014,420) (186,622) (297,265) (40,772) — — (4,149,972) Depreciation and amortization (363,264) (77,174) (50,819) (33,438) (7,750) (7,306) — (539,751) Expenses from commissions and fees (362,810) (71,570) (89,515) (107,759) (13,322) (2,511) 33,724 (613,763) Costs and expenses of sales goods and services (254,904) (242,943) (13,962) — (5,011,808) 5,409 36,106 (5,482,102) Administrative expenses (3,171,147) (699,653) (564,289) (408,079) (95,338) (206,690) 504,736 (4,640,460) Other expense (2,552,588) (418,471) (402,933) (190,005) (233,165) 283,719 (324,752) (3,838,195) Income tax expense (950,042) 35,454 (152,923) (101,303) (908,261) (70,145) (2,370) (2,149,590) Total expenses (14,594,493) (3,623,966) (2,311,770) (1,507,864) (7,091,453) (220,043) 450,915 (28,898,674) Net income for the year Ps. 3,131,213 Ps. 416,294 Ps. 354,961 Ps. 216,468 Ps. 2,068,518 Ps. (9,616) Ps. (993,287) Ps. 5,184,551 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Revenue from contracts with customers (2) Ps. 4,530,757 Ps. 582,571 Ps. 262,703 Ps. 281,761 Ps. 7,770,108 Ps. 437,292 Ps. (285,796) Ps. 13,579,396 Timing of revenue recognition At a point in time 1,156,598 126,524 72,090 159,147 167,440 436,697 (377,760) 1,740,736 Over time 3,374,159 456,047 190,613 122,614 7,602,668 595 91,964 11,838,660 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. (2) Income from contracts with customers, see note 28. Statement of Income of the year 2017 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 11,241,897 Ps. 3,450,056 Ps. 2,196,753 Ps. 1,305,784 Ps. 547,028 Ps. 315 Ps. — Ps. 18,741,833 Income from commissions and fees 4,187,221 396,658 224,233 250,824 95,086 48,103 — 5,202,125 Income from sales of goods and services 104,277 62,294 58,184 — 5,568,095 — — 5,792,850 Share of profit of equity accounted investees, net of tax 5,847 2,402 2,622 2,043 159,050 — — 171,964 Dividends 1,321 370 1,991 1,514 45,243 — — 50,439 Other income 954,355 194,155 63,157 62,642 423,255 3,077 — 1,700,641 Ps. 16,494,918 Ps. 4,105,935 Ps. 2,546,940 Ps. 1,622,807 Ps. 6,837,757 Ps. 51,495 Ps. — Ps. 31,659,852 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 72,910 Ps. 1,818 Ps. 1,047 Ps. 4,797 Ps. 62,097 Ps. 277 Ps. (142,946) Ps. — Income from commissions and fees 2,988 5,171 4,133 15,065 1,339 95,312 (124,008) — Income from sales of goods and services 15 78,286 — — 6,992 14,060 (99,353) — Share of profit of equity accounted investees, net of tax 36,782 139,555 (376) 132 159 — (176,252) — Dividends 3,101 5,494 6,810 1,170 1,244 — (17,819) — Other income 24,536 2,494 5,978 1,977 (18,243) 62,335 (79,077) — 140,332 232,818 17,592 23,141 53,588 171,984 (639,455) — Total income Ps. 16,635,250 Ps. 4,338,753 Ps. 2,564,532 Ps. 1,645,948 Ps. 6,891,345 Ps. 223,479 Ps. (639,455) Ps. 31,659,852 Expenses Interest expense Ps. (4,594,100) Ps. (1,388,144) Ps. (977,441) Ps. (423,069) Ps. (852,501) Ps. (216,694) Ps. 224,250 Ps. (8,227,699) Loans and other accounts receivable (2,459,293) (993,350) (258,926) (327,833) (79,932) — — (4,119,334) Depreciation and amortization (361,621) (69,255) (45,417) (29,897) (5,881) (9,337) — (521,408) Expenses from commissions and fees (351,073) (94,089) (86,228) (108,572) (10,772) (2,550) 30,170 (623,114) Costs and expenses of sales goods and services (238,836) (206,532) (26,764) — (4,577,538) 5,901 7,942 (5,035,827) Administrative expenses (3,035,346) (703,106) (520,204) (375,522) (119,271) (229,821) 470,122 (4,513,148) Other expense (2,491,823) (390,812) (334,944) (180,186) (241,854) 311,137 (375,613) (3,704,095) Income tax expense (970,207) (115,778) (108,914) (63,174) (440,043) (51,957) (2,721) (1,752,794) Total expenses (14,502,299) (3,961,066) (2,358,838) (1,508,253) (6,327,792) (193,321) 354,150 (28,497,419) Net income for the year Ps. 2,132,951 Ps. 377,687 Ps. 205,694 Ps. 137,695 Ps. 563,553 Ps. 30,158 Ps. (285,305) Ps. 3,162,433 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. Main eliminations of total income, expenses, assets and liabilities between segments with the corresponding consolidated entries at the level of Grupo Aval are: · Loans with financial obligations of entities mainly from non-financial sector. · Investments in term deposits and outstanding bonds of in other segments. · Investments in subordinates elimination and record of non- controlling interests. · Leases and commissions pay between entities of Grupo Aval. · Expenses and incomes from commissions 31.5 Analysis of Revenues by Products and Services Grupo Aval’s revenues are analyzed by products and services, in the statement of income. 31.6 Income by Country Grupo Aval’s revenues for each individual country for which revenues are significant, are the following during the years ended December 31, 2019, 2018 and 2017: December 31, 2019 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 12,891,567 Ps. 1,418,362 Ps. 2,128,292 Ps. 1,058,404 Ps. 950,760 Ps. 391,889 Ps. 660,029 Ps. 6,162 Ps. 47,270 Ps. 19,552,735 Income from commissions and fees 3,506,114 352,996 1,173,411 278,198 344,010 170,261 223,982 — 34,371 6,083,343 Storage services 161,298 — — — — — — — — 161,298 Trust activities 334,910 — — — — — — — — 334,910 Pension and severance fund management 1,088,849 — 31,711 — 8,831 — — — — 1,129,391 Fees on credit cards 606,581 45,016 406,458 69,367 99,055 50,568 63,467 — 23,732 1,364,244 Office network services 24,618 — — — — — — — — 24,618 Commissions on drafts, checks and checkbooks 49,546 480 — — — — — — — 50,026 Other commissions 12,350 — — — — — — — — 12,350 Commissions on banking services 1,227,962 307,500 735,242 208,831 236,124 119,693 160,515 — 10,639 3,006,506 Share of profit of equity accounted investees, net of tax 229,626 — — — — — — — — 229,626 Dividends 80,443 2,666 — 870 707 — — — — 84,686 Income from sales of goods and services 8,710,572 669 — — — — — 445,347 — 9,156,588 Energy and gas E&G 4,102,181 — — — — — — 422,722 — 4,524,903 Infrastructure 3,783,534 — — — — — — — — 3,783,534 Hotels 343,541 669 — — — — — 22,625 — 366,835 Agribusiness 135,928 — — — — — — — — 135,928 Others Services 205,813 — — — — — — — — 205,813 Others operating income 139,575 — — — — — — — — 139,575 Other income 1,484,085 44,292 72,026 147,776 59,667 114,740 5,486 6,635 13,471 1,948,178 Total income Ps. 26,902,407 Ps. 1,818,985 Ps. 3,373,729 Ps. 1,485,248 Ps. 1,355,144 Ps. 676,890 Ps. 889,497 Ps. 458,144 Ps. 95,112 Ps. 37,055,156 December 31, 2018 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 12,721,895 Ps. 1,205,059 Ps. 1,797,230 Ps. 882,648 Ps. 763,975 Ps. 423,149 Ps. 544,267 Ps. 107 Ps. 18,306 Ps. 18,356,636 Income from commissions and fees 3,238,516 309,546 999,648 260,158 275,111 157,034 194,870 — 18,499 5,453,382 Storage services 156,638 — — — — — — — — 156,638 Trust activities 312,901 — — — — — — — — 312,901 Pension and severance fund management 955,912 — 25,516 — 5,895 — — — — 987,323 Fees on credit cards 557,533 42,560 343,791 57,929 81,512 41,552 54,590 — 8,249 1,187,716 Office network services 30,220 — — — — — — — — 30,220 Commissions on drafts, checks and checkbooks 49,196 449 — — — — — — — 49,645 Other commissions 10,457 — — — — — — — — 10,457 Commissions on banking services 1,165,659 266,537 630,341 202,229 187,704 115,482 140,280 — 10,250 2,718,482 Share of profit of equity accounted investees, net of tax 197,715 — — — — — — — — 197,715 Dividends 66,980 3,143 — 713 651 — — — — 71,487 Income from sales of goods and services 7,861,701 575 — — — — — 263,738 — 8,126,014 Energy and gas E&G 3,168,649 — — — — — — 243,025 — 3,411,674 Infrastructure 3,826,101 — — — — — — — — 3,826,101 Hotels 311,461 575 — — — — — 20,713 — 332,749 Agribusiness 133,095 — — — — — — — — 133,095 Others Services 239,801 — — — — — — — — 239,801 Others operating income 182,594 — — — — — — — — 182,594 Other income 1,307,370 9,302 269,119 130,052 55,773 90,549 8,060 3,297 4,469 1,877,991 Total income Ps. 25,394,177 Ps. 1,527,625 Ps. 3,065,997 Ps. 1,273,571 Ps. 1,095,510 Ps. 670,732 Ps. 747,197 Ps. 267,142 Ps. 41,274 Ps. 34,083,225 December 31, 2017 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 13,512,361 Ps. 1,076,412 Ps. 1,647,600 Ps. 830,179 Ps. 759,401 Ps. 413,925 Ps. 485,703 Ps. 87 Ps. 16,165 Ps. 18,741,833 Income from commissions and fees 3,122,497 294,630 922,251 233,758 255,317 164,030 185,761 — 23,881 5,202,125 Storage services 169,815 — — — — — — — — 169,815 Trust activities 311,837 — — — — — — — — 311,837 Pension and severance fund management 898,537 — 23,342 — 4,892 — — — — 926,771 Fees on credit cards 534,209 23,247 320,208 61,599 66,210 50,344 51,686 — 4,816 1,112,319 Office network services 42,639 — — — — — — — — 42,639 Commissions on drafts, checks and checkbooks 60,268 500 — — — — — — — 60,768 Other commissions 10,272 — — — — — — — — 10,272 Commissions on banking services 1,094,920 270,883 578,701 172,159 184,215 113,686 134,075 — 19,065 2,567,704 Share of profit of equity accounted investees, net of tax 171,964 — — — — — — — — 171,964 Dividends 50,023 416 — — — — — — — 50,439 Income from sales of goods and services 5,570,536 409 — — — — — 221,906 — 5,792,850 Energy and gas E&G 2,701,124 — — — — — — 207,168 — 2,908,292 Infrastructure 2,290,786 — — — — — — — — 2,290,786 Hotels 221,613 409 — — — — — 14,738 — 236,760 Agribusiness 87,800 — — — — — — — — 87,800 Others Services 132,833 — — — — — — — — 132,833 Others operating income 136,379 — — — — — — — — 136,379 Other income 1,267,920 38,701 182,258 68,709 42,229 84,453 4,812 6,345 5,214 1,700,641 Total income Ps. 23,695,301 Ps. 1,410,568 Ps. 2,752,109 Ps. 1,132,646 Ps. 1,056,947 Ps. 662,408 Ps. 676,276 Ps. 228,338 Ps. 45,260 Ps. 31,659,852 During the years ended December 31, 2019, 2018 and 2017, Grupo Aval reported no concentration of revenue in customers with more than a 10% share of revenue from ordinary activities. The foregoing analysis is based on the customer's domicile. Income from off- shore entities of Colombian customers are reported as income from Colombia. The revenues include income from interest, fees, commissions and other operating income. 31.7 Non-current assets by Country Grupo Aval’s non-current assets for each individual country for which non-current assets are significant, are as follows as of December 31, 2019 and 2018: December 31, 2019 (1) Own – use Property, plant and equipment, net (2) Intangible assets Colombia Ps. 4,441,733 Ps. 10,299,669 Panamá 210,348 4,005,751 Costa Rica 403,107 101,324 Guatemala 139,793 17,981 Other countries 588,253 1,651,841 Total Ps. 5,783,234 Ps. 16,076,566 December 31, 2018 (1) Own – use Property, plant and equipment, net (2) Intangible assets Colombia Ps. 4,450,061 Ps. 8,625,595 Panamá 213,090 3,979,443 Costa Rica 378,554 100,631 Guatemala 108,167 15,988 Other countries 513,871 1,145,302 Total Ps. 5,663,743 Ps. 13,866,959 (1) see note 15.1 (2) see notes 16 to 18.

UNCONSOLIDATED STRUCTURED ENTIT

UNCONSOLIDATED STRUCTURED ENTITIES	12 Months Ended
	Dec. 31, 2019
Disclosure of unconsolidated structured entities [abstract]
Disclosure of unconsolidated structured entities [text block]	NOTE 32 – UNCONSOLIDATED STRUCTURED ENTITIES The term "unconsolidated structured entities" refers to all structured entities that are not controlled by Grupo Aval. Grupo Aval enters into transactions with unconsolidated structured entities in the normal course of business to facilitate customer transactions and for specific investment opportunities. The table below shows the total assets of unconsolidated structured entities in which Grupo Aval had an interest at the reporting date and its maximum exposure to loss in relation to those interests: Nature and risks associated with Grupo Aval’s interests in unconsolidated structured entities Grupo Aval’s managed December 31, 2019 Securitizations funds Total Grupo Aval’s interest-assets Investments at fair value through profit or loss Ps. 10,102 Ps. 3,486,646 Ps. 3,496,748 Other account receivables — 40,149 40,149 Total assets in relation to Grupo Aval’s interests in the unconsolidated structured entities 10,102 3,526,795 3,536,897 Grupo Aval’s maximum exposure (*) Ps. 10,102 Ps. 3,526,795 Ps. 3,536,897 (*) Represent 1.26%, respectively of the Grupo Aval’s managed funds total assets. Grupo Aval’s managed December 31, 2018 Securitizations funds Total Grupo Aval’s interest-assets Investments at fair value through profit or loss Ps. 13,733 Ps. 2,181,725 Ps. 2,195,458 Other account receivables — 34,431 34,431 Total assets in relation to Grupo Aval’s interests in the unconsolidated structured entities 13,733 2,216,156 2,229,889 Grupo Aval’s maximum exposure (*) Ps. 13,733 Ps. 2,216,156 Ps. 2,229,889 (*) Represent 1.35%, respectively of the Grupo Aval’s managed funds total assets. Grupo Aval invests in asset-backed securities issued by securitization entities for which underlying assets are mortgages granted by financial institutions. Grupo Aval does not have a significant exposure to sub-prime securities. The asset-backed securities are denominated in local market TIPS and accounted for as investment at fair value through profit or loss. These asset-backed securities have different maturities and are generally classified by credit ratings. Also, Grupo Aval retains beneficial interests in the form of servicing fees on the securitized receivable and manages funds. In the normal course of operations, Grupo Aval has trust companies that manage collective investment funds and assets of third parties whose the managing trustees receive commissions. Additionally, Grupo Aval has the subsidiary Fondo de Pensiones y Cesantias Porvenir that manages mandatory pension funds and defined contribution plans. For management services provided by the trust and Porvenir, commissions vary according to the conditions of each fund or asset managed are received. The obligations of these entities in the administration of these assets are of means and do not guarantee the results. The maximum exposure risk of loss is determined by the possible failures in the administration of the funds by the amount of the returns that manages and the return of the results of assets the clients.

TRANSFERS OF FINANCIAL ASSETS

TRANSFERS OF FINANCIAL ASSETS	12 Months Ended
	Dec. 31, 2019
Disclosure of transfers of financial assets [Abstract]
Disclosure of transfers of financial assets [text block]	NOTE 33 - TRANSFERS OF FINANCIAL ASSETS Grupo Aval enters into transactions in the normal course of business by which it transfers financial assets to third parties. Depending on the circumstances, these transfers may either result in these financial assets being derecognized or continuing to be recognized in Grupo Aval´s financial statements. A. Transferred financial assets not qualifying for full derecognition i. Sale and repurchase agreements Sales and repurchase agreements are transactions in which Grupo Aval sells securities and simultaneously agrees to repurchase them (or assets that are substantially the same) at a fixed price on a future date. Grupo Aval continues to recognize the securities in their entirety in the statement of financial position because it retains substantially all of the risks and rewards of ownership. The cash consideration received is recognized as a financial asset and a financial liability is recognized for the obligation to pay the repurchase price. Because Grupo Aval sells the contractual rights to the cash flows of the securities, it does not have the ability to use the transferred assets during the term of the arrangement. As of December 31, 2019, the financial assets held for trading that are being used as collateral in repo operations amounted Ps.620,920 (December 31, 2018 Ps.1,139,782) see note 8.4, the financial investments debt securities at amortized cost Ps.323,954 see note 9.5.2 and the financial investments debt securities FVOCI that are being used as collateral in repo operations amounted Ps. 6,662,608 (December 31, 2018 Ps. 4,029,816) see note 9.5.1 (only pledged as collateral in money market operations and pledged as collateral to special entities such as CRCC, BR and BVC). ii. Securities lending As of December 31, 2019, and 2018 Grupo Aval has not recorded securities lending. A. Transfer of financial assets that are derecognized in their entirety. i. Securitizations Certain securitization transactions undertaken by Grupo Aval result in the derecognizing transferred assets in their entirety. This is the case when Grupo Aval transfers substantially all of the risks and rewards of ownership of financial assets to unconsolidated securitization vehicle and retains a relatively small interest in the vehicle or a service arrangement in respect of the transferred financial assets. If the financial assets are derecognized in the entirety, then the interest in unconsolidated securitization vehicles that Grupo Aval receives as part of the transfer and the service arrangement represent continuing involvement with those assets.

RELATED PARTIES

RELATED PARTIES	12 Months Ended
	Dec. 31, 2019
Disclosure of Related Parties [Abstract]
Disclosure of related party [text block]	NOTE 34 – RELATED PARTIES To verify the correct identification of relationships and transaction with related parties, Grupo Aval has established a specific formal Procedure for the Identification and Disclosure of Balances and Transactions with Related Parties. Such procedure is communicated and made available to our personnel through Grupo Aval’s intranet. In application of this procedure, our members of the board of directors and our key management personnel are periodically required to identify close family members and entities over which such persons have significant influence. Such process is conducted by a written request containing the criteria that such person must consider in order to provide information on close family members and entities that must be disclosed as their related parties. In addition, Grupo Aval Vice-Presidency of Accounting Consolidation periodically performs an evaluation of its controlling and non-controlling investments in other entities to identify if such entities should be treated as a related entity. The following are some of the guidelines included in the abovementioned corporate framework: · Grupo Aval and its subsidiaries shall permanently carry out the registration of the operations performed with related parties, identifying the type of operation, its purpose, economic conditions and authorizations received when applicable. · Grupo Aval and its subsidiaries shall establish limits of indebtedness or exposure and perform constant monitoring of the intragroup operations, complying for such purpose with the restrictions set forth under applicable regulations. · All intragroup operations shall be fully identified by accounting areas of the respective entities. · Authorization levels are defined within the governance and control structure, assigned as may be deemed adequate as a function of the magnitude and type of transaction, keeping the evidence of such authorizations. · It should be verified that related party transactions are carried out for a good and valuable consideration, at market conditions, maintaining a financial equilibrium in the relationships between the entities participating in the operation. This Reference Framework for Institutional Relations was also submitted to the consideration and approval of the Board of Directors of our subsidiaries and has been made available in the web sites of Grupo Aval and its subsidiaries. Balances as of December 31, 2019 and 2018, with related parties, are detailed in the following tables: Individuals Entities Entities Individuals with with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2019 Aval (*) personnel (*) ventures individuals individuals Assets Cash and equivalents Ps. — Ps. — Ps. — Ps. — Ps. — Financial assets in investments — — 1,006,340 — — Financial assets in credit operations 2,936 7,775 1,148,522 1,513,287 122,964 Accounts receivable 9 14 12,243 2,958 241 Other assets — — 14,118 3,232 — Liabilities Deposits Ps. 273,224 Ps. 27,000 Ps. 97,097 Ps. 1,290,574 Ps. 7,032 Accounts payable 561 347 9,165 514,976 21 Financial obligations 3 15 72 30,000 — Other liabilities — — 1,937 714 — (*) Include family members Individuals Entities Entities Individuals with with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2018 Aval (*) personnel (*) ventures individuals individuals Assets Cash and equivalents Ps. — Ps. — Ps. — Ps. — Ps. — Financial assets in investments — — 920,170 — — Financial assets in credit operations 2,680 17,062 1,443,476 1,513,218 102,958 Accounts receivable 9 58 8,105 3,329 17 Other assets — — 20,348 5,030 — Liabilities Deposits Ps. 100,199 Ps. 21,726 Ps. 70,960 Ps. 570,558 Ps. 23,470 Accounts payable 38 686 10,114 291,328 1 Financial obligations 1 3 102 7 — Other liabilities — — 25,040 194 3 (*) Include family members Transactions during the years ended as of December 31, 2019, 2018 and 2017, with related parties are as follows: a. Profit or loss Individuals Entities Individuals with Entities with control Key Associates Entities significant over Grupo management and joint controlled by influence by December 31, 2019 Aval (1) personnel (1) ventures (2) individuals individuals Income Interest income Ps. 290 Ps. Ps. Ps. Ps. Fee income and commissions Leases — — — — Other income Expenses Financial expenses Ps. (169) Ps. (628) Ps. (1,251) Ps. (20,319) Ps. (28) Fee expenses and commissions (3) (1,410) (20,066) (2,098) (380) Operating expenses (300) (7,850) — (3,278) — Other expenses (14) (1,893) (444,730) (41,276) (25) (1) Include family members (2) Expenses were recognized during the current period with respect to bad debts owed by related parties for 400,630 Individuals Entities Entities with Individuals with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2018 Aval (*) personnel (*) ventures individuals individuals Income Interest income Ps. 216 Ps. 907 Ps. 101,539 Ps. 131,368 Ps. 4,789 Fee income and commissions 5 58 6,664 65,615 5 Leases — — 45 315 — Other income 4 243 241,797 4,252 — Expenses Financial expenses Ps. (216) Ps. (740) Ps. (735) Ps. (17,322) Ps. (22) Fee expenses and commissions (4) (1,549) (14,741) (1,796) (5) Operating expenses — (25,808) (53) (4,013) — Other expenses (16) (496) (30,250) (27,034) — (*) Include family members Individuals Entities Entities with Individuals with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2017 Aval (*) personnel (*) ventures individuals individuals Income Interest income Ps. 164 Ps. 757 Ps. 155,690 Ps. 123,671 Ps. 543 Fee income and commissions 5 48 26,249 57,180 — Leases — — 321 301 — Other income 4 59 236,871 6,391 — Expenses Financial expenses Ps. (243) Ps. (1,197) Ps. (129,335) Ps. (30,431) Ps. (6) Fee expenses and commissions (4) (1,510) (24,039) (3,276) (1) Operating expenses — (9,706) (3,572) (1,892) (113) Other expenses — (1,635) (32,691) (34,400) — Outstanding amounts are not guaranteed and shall be liquidated in cash. Guarantees have not been granted or received. b. Compensation of Key Management Personnel The compensation received by the key personnel of the management comprises the following: Year ended as of December 31, December 31, December 31, Items 2019 2018 2017 Salaries Ps. 16,778 Ps. 18,123 Ps. 17,073 Short term benefits for employees 4,654 3,244 3,167 Subtotal 21,432 21,367 20,240 Subsidiaries 37,590 54,161 32,795 Total Ps. 59,022 Ps. 75,528 Ps. 53,035 Transactions with our related parties correspond primarily to the normal course of banking business activities carried out under market conditions. Such transactions include demand and saving deposits, time deposits, commercial, consumer and mortgage loans, financial leases, payment of dividends and or interest.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2019
Disclosure of non-adjusting events after reporting period [abstract]
Disclosure of events after reporting period [text block]	NOTE 35 – SUBSEQUENT EVENTS Issued of Bonds Grupo Aval Acciones y Valores S.A. (“Grupo Aval”) announced that a Senior Notes issuance was held on January 28, 2020 in the international capital markets for a total value of US $ 1 billion. The Notes were issued for a term of ten (10) years, with a coupon of 4.375%. The Notes will mature on February 4, 2030 and the interest payment will be semiannual. The bonds were issued by Grupo Aval Ltd., a subsidiary of Grupo Aval, guaranteed by Grupo Aval, in accordance with Rule 144 A and Regulation S issued under the Securities Act of 1933 of the United States of America. Dividends At the General Meeting of Shareholders that took place on March 30, 2020, it was declared a dividend of 5.00 per month for the preferred and common shares, during period of twelve-month between April, 2020 and March 2021, for a total dividend of 1,336,861 according to the following: Net income for period ended December 31, 2019 included in the unconsolidated financial statements of Grupo Aval Occasional reserve release at the disposal of the General Meeting of Shareholders Total Income available for disposal of the General Meeting of Shareholders Cash Dividends Ps. 60 per share payable in twelve monthly installments of Ps. 5.00 per share, from April 2020 to March, 2021. Total shares outstanding Total dividends declared Ps. To Occasional reserve at the disposal of General Meeting of Shareholders In a meeting held on March 4, 2020, Grupo Aval’s Board of Directors approved the presentation of the consolidated financial statements under Colombian IFRS and the accompanying notes for the period ended December 31, 2019, for consideration of the General Meeting of Shareholders. Global Events The COVID 19 outbreak is having different effects worldwide, the different governments are taking measures to reduce its impacts, which effects are already being seen in the different economies where Grupo Aval has operations. Grupo Aval does not prepare a complete set of consolidated quarterly financial statements, including notes, under IFRS as issued by the IASB. In addition, given the highly dynamic environment and the complexity of calculations, it is not possible to estimate the financial effect of COVID 19 as of the date of issuance of the consolidated financial statements. The following are the evaluations carried out by Grupo Aval on the impacts of COVID 19. Our net interest income, impairment loss on financial assets, net income from commissions and fees, gross profit from sales of goods and services, net trading income and other line items could be negatively impacted by COVID-19, quarantines and the slowdown of the economy in countries in which we operate. Measurement of financial instruments – Loan reliefs for customers The measures taken or suggested by Governments of the countries where Grupo Aval operates have prompted the banks to aid companies or individuals in relation to their loans or loan agreements in force, which imply renegotiating their terms. The impact of changes in the terms of any loan or loan agreement involves establishing whether the conditions are met for the loans to be derecognized or modified, and in either case, recognize the resulting gains or losses in the Statement of Income. Impairment of assets - Goodwill, Property, plant and equipment and Intangibles The temporary disruption of some of Grupo Aval´s business operations could give rise to impairment indicators. Updating the impairment tests that had been carried out at the end of 2019 will be necessary and it will likely lead to tests that had not been performed before, given the absence of impairment indicators. As part of these new assessments we will have to consider and evaluate updated forecasts and other assumptions different from those previously used to determine the recoverable amount of assets, so that they reflect the economic conditions being observed, specifically addressing the increased risk and uncertainty, which will involve formulating multiple probability-weighted scenarios. The factors used to determine discount rates will also have to be reviewed to reflect the impact of the measures taken to control the virus (risk-free rate, country risk and market risk). We do not expect significant impairments in relation to this type of assets based on current and future projections, which in any case will be kept under evaluation until the effects of COVID-19 dissipate. Impairment of financial instruments - Loans Financial instruments within the scope of IFRS 9 ´s expected credit loss (ECL) model will have to be reviewed to consider the impacts of COVID-19 on the ECL. Instruments considered include loans, trade and other accounts receivable, debt instruments not measured at fair value through profit or loss, contractual assets, accounts receivable for leasing, financial guarantees and loan commitments. Impacts could fundamentally arise in connection with the following aspects: · Whether ECL is measured for a 12-month period or for an instrument´s lifetime. If credit risk (probability of default) has increased significantly since initial recognition, the ECL should be measured for the entire life of the instrument; and · The estimate of the ECL itself, which will include the following: (i) the credit risk (probability of default) could increase if the debtor’s business is negatively impacted; (ii) the amount subject to risk (exposure at default) if the debtors affected drawdown on unused credit facilities, stop making discretionary advance or over-payments, or take longer than normal to pay; and (iii) the estimated loss as a result of default (loss given default), which can increase if there is a decrease in the fair value of a financial and non-financial asset pledged as collateral. (iv) Forward-looking information (including macroeconomic information) will need to be considered both when evaluating whether there has been a significant increase in credit risk (SICR) and when measuring ECL. Forward-looking information could include additional negative scenarios by adding one or more additional scenarios to Grupo Aval existing scenarios, modifying one or more of the existing scenarios, adjusting the weighting given to the negative scenarios, or using a general factor if the impact is not included in Grupo Aval´s main credit loss model.

PARENT COMPANY INFORMATION

PARENT COMPANY INFORMATION	12 Months Ended
	Dec. 31, 2019
PARENT COMPANY INFORMATION
PARENT COMPANY INFORMATION	NOTE 36 – PARENT COMPANY INFORMATION Condensed separate statement of financial position The following are the condensed separate (alone) statements of financial position of Grupo Aval Acciones y Valores S.A., at December 31, 2019, and 2018 and condensed separate statements of income and statement of cash flows for the fiscal year ended December 31, 2019, 2018 and 2017. Condensed separate Statement of Financial Position December 31, 2019 2018 Current Assets Cash and cash equivalents Ps. 51,299 Ps. 38,667 Held for trading securities 212 1,543 Accounts receivable from related parties 328,307 267,640 Other assets 442 517 Total current assets Ps. 380,260 Ps. 308,367 Non current Assets Investments in subsidiaries and associates 22,016,681 19,932,376 Property plant and equipment 8,351 2,414 Deferred tax 331 476 Total non current assets Ps. 22,025,363 Ps. 19,935,266 Total assets Ps. 22,405,623 Ps. 20,243,633 Current liabilities Borrowings at amortized cost 189,297 2,808 Outstanding bonds at amortized cost 107,435 284,758 Accounts payable 468,298 405,372 Other non-financial liabilities 1,214 1,214 Total current liabilities Ps. 766,244 Ps. 694,152 Long-term liabilities Borrowings at amortized cost 241,141 541,924 Outstanding bonds 1,124,520 824,520 Total non current liabilities Ps. 1,365,661 Ps. 1,366,444 Total liabilities Ps. 2,131,905 Ps. 2,060,596 Equity Shareholders’ equity 20,273,718 18,183,037 Total liabilities and shareholders’ equity Ps. 22,405,623 Ps. 20,243,633 December 31, December 31, December 31, Condensed separate Statement of Income 2019 2018 2017 Operating revenue Equity method income, net 3,014,756 2,893,435 2,005,155 Other revenue from ordinary activities 286,778 285,218 234,502 Total operating revenue Ps. 3,301,534 Ps. 3,178,653 Ps. 2,239,657 Expenses, net Administrative expenses (83,902) (75,348) (89,823) Other expenses (236) (166) (274) (Losses) gains from exchange differences (812) (1,601) 98 Operating income Ps. 3,216,584 Ps. 3,101,538 Ps. 2,149,658 Financial expenses (121,794) (118,892) (133,171) Net income before taxes 3,094,790 2,982,646 2,016,487 Income tax expense (61,411) (66,662) (51,568) Net income Ps. 3,033,379 Ps. 2,915,984 Ps. 1,964,919 December 31, December 31, December 31, Condensed separate Cash flow 2019 2018 2017 Net income Ps. 3,033,379 Ps. 2,915,984 Ps. 1,964,919 Adjustments to reconcile net income to net cash used by operating activities (1,753,640) (1,785,764) (880,322) Net cash provided by operating activities 1,279,739 1,130,220 1,084,597 Net cash provided (used in) by investing activities (145) (144) (295) Net cash (used in) provided by financing activities (1,267,976) (1,128,498) (1,096,011) Increase (decrease) in cash and cash equivalents 11,618 1,578 (11,709) Effect of foreign currency changes on cash and cash equivalents 1,014 1,611 (93) Cash and cash equivalents at beginning of year 38,667 35,478 47,280 Cash and cash equivalents at end of year Ps. 51,299 Ps. 38,667 Ps. 35,478 Basis for presenting and summary of significant accounting policies The attached separated financial statement of Grupo Aval have been prepared in accordance with the International Financial Reporting Standards (IFRS) issued by the International Accounting Standards Board (IASB), and their interpretations from the International Financial Reporting Standards Committee (IFRIC), currently in force and on the basis of historic cost, except for financial assets at fair value through profit or loss. Certain information and footnote disclosures normally included in financial statements prepared in accordance with IFRS have been condensed or omitted. The separated financial statements of Grupo Aval have been prepared using the same IFRS basis and principles that Grupo Aval used to prepare it consolidated financial statements described in Note 2, except as provided below for its investments in subsidiaries and associates. Commitments and contingencies In the normal course of business, certain subsidiaries of Grupo Aval are defendants in various tax and legal proceedings. Grupo Aval is not aware of any pending legal proceedings which could have a significant effect on its financial position or the results of its operations. Investment in subsidiaries and associates companies Based on the IAS 27, when an entity prepares separate financial statements it shall account for investments in subsidiaries either: a) at cost or b) at fair value, in accordance with IFRS 9 or c) using the equity method. Accordingly Grupo Aval accounts for its investments in subsidiaries using the equity method. The equity method is an accounting method according to which the investment is initially reconizes at cost, and they are periodically adjusted due to changes in the interest of the parent company over the net assets of the subsidiaries. Grupo Aval records on the result of the period its participation in the profit or loss of the subsidiaries, and in OCI its participation in the “Other comprehensive income account” of the subsidiary. In applying equity method Grupo Aval uses the subsidiaries consolidated financial statements at the end of the period prepared under IFRS. Gain and losses resulting from transactions between Grupo Aval and its subsidiaries are recognized in the Grupo Aval´s financial statement only to the extent of Grupo Aval´s interest in the subsidiaries, unless the transaction provides evidence of an impairment in the book value of transferred assets. Additionally, in a business combination process, to acquire some subsidiaries any difference between the cost of investment and Grupo Aval’s share on the net fair value of the subsidiary identifiable acquired assets and assumed liabilities is accounted as follows: Goodwill relating to the acquisition is included in the carrying amount of the investment. Amortization of goodwill is not permitted. Appropriate adjustments to Grupo Aval’s investments in the subsidiary after acquisition are made to account for example for depreciation of assets acquired in the business combination process based on their fair value at the acquisition date and for the impairment losses in such assets. Investment in Subsidiaries and Associates Investment in subsidiaries and associates as of December 31, 2019 and 2018 comprise the following: December 31, 2019 December 31, 2018 Ownership Ownership interest held interest held by Grupo Book by Grupo Book Subsidiary Aval Value Aval Value Banco de Bogotá S.A. 68.74 % Ps. 13,325,612 68.74 % Ps. 11,905,815 Banco de Occidente S.A. 72.27 % 3,415,545 72.27 % 3,183,351 Banco Comercial AV Villas S.A. 79.87 % 1,410,765 79.87 % 1,290,056 Banco Popular S.A. 93.74 % 3,074,428 93.74 % 2,923,562 Corporación Financiera Colombiana S.A. 38.63 % 821,827 38.25 % 674,484 Sociedad Administradora de Fondos de Pensiones y Cesantías Porvenir S.A. 75.67 % 503,993 75.69 % 440,707 Grupo Aval Limited 100 % (535,893) 100.00 % (347,082) Grupo Aval International Limited (1) — % — 100.00 % (138,517) Total subsidiaries Ps. 22,016,277 Ps. 19,932,376 Associates ADL Digital Lab S.A.S 34.00 % — Total associates — Total investment in subsidiaries and associates Ps. Ps. (1) See note 1 reporting entity. Outstanding bonds Bonds at December 31, 2019 and 2018 comprise the following: Amounts outstanding Issuance date Tranches Maturity Coupon rate 2019 2018 November, 2019 Ps. 100,000 November, 2024 6.42 % Ps. Ps. — November, 2019 300,000 November, 2039 IPC + 3.69 % — June, 2017 100,000 June, 2020 IPC + 2.69 % 100,065 June, 2017 300,000 June, 2042 IPC + 3.99 % 300,237 November, 2016 93,000 November, 2026 IPC + 3.86 % 93,690 November, 2016 207,000 November, 2036 IPC + 4.15 % 208,597 December, 2009 279,560 December, 2019 IPC + 4.84 % - 281,341 December, 2009 124,520 December, 2024 IPC + 5.20 % 125,348 Total Bonds Ps. 1,504,080 Ps. 1,231,955 Ps. 1,109,278 The scheduled maturities of bonds as of December 31, 2019 are as follows Period Amount 2020 107,435 2021 — 2022 and thereafter Total Ps. 1,231,955

BASIS OF PREPARATION OF THE C_2

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2019
Disclosure of voluntary change in accounting policy [abstract]
Disclosure of basis of consolidation [text block]	2.1 Basis of preparation a) The consolidated financial statements are prepared as follows: · The consolidated statement of financial position presents the company´s assets and liabilities based on liquidity since it provides reliable and more relevant information than separate current and non-current classifications. · The consolidated statements of income and other comprehensive income are presented separately. The Consolidated Statement of Income is presented according to their function of expense, as this method provides reliable and more relevant information. · The consolidated statement of cash flows is presented using the indirect method. Accordingly, net cash flows from operating activities are determined by reconciling net income before tax expense, with the effects of non-cash items, net changes in assets and liabilities from operating activities, and for any other effects that are not classified as investing or financing activities. Revenue and expenses due to interest received and paid are part of operating activities. b) Grupo Aval prepares its consolidated financial statements incorporating its controlled entities. Grupo Aval controls an investee if and only if it complies with the following elements: · Power over the investee entitling Grupo Aval to direct any relevant activities that significantly affect the investee's performance. · Exposure, or rights to variable returns from its involvement with the investee. · Ability to affect those returns through its power over the investee. In order to comply with this requirement, Grupo Aval carries out an annual reassessment of all its contractual relationships. No new entities are required to be consolidated as a result of this process, including no structured entities. The financial statements of Grupo Aval´s subsidiaries are included in the consolidated financial statements since the date on which Grupo Aval acquires control or following control until the date on which control is lost. During the consolidation process, Grupo Aval combines the assets, liabilities and profits or losses of those entities under control, previously aligning the accounting policies in all the subsidiaries. Such process includes eliminating intra-group balances and transactions and any unrealized and realized income and expense (except for foreign currency translation gains or losses and those taxes which are not subject to elimination) arising from intra-group transactions. Unrealized and realized losses are eliminated in the same way as unrealized and realized gains but only to the extent that there is no evidence of impairment. Non-controlling interests are presented in the equity of the consolidated statement of financial position of Grupo Aval separately from the equity attributable to owners of the parent company. For consolidation purposes, the statements of financial position and income of Grupo Aval´s foreign subsidiaries are translated to Colombian pesos, as follows: · Assets and liabilities are translated at the closing exchange rate at the reporting date; · Income, expense and cash flows of foreign operations are translated at monthly average exchange rates since those averages approximate the exchange rates of each specific transaction; · All resulting exchange differences are recognized in other comprehensive income and accumulated in the foreign currency translation reserve, except to the extent that the translation difference is allocated to non-controlling interests. c) Associates are companies in which Grupo Aval has significant influence but not control and are accounted for under the equity method. They are presented in the statement of financial position as “Investments in associates and joint ventures” (additionally see Note 2.1 “d Joint arrangements”). Grupo Aval exercises significant influence over another entity if it owns, directly or indirectly, 20% or more of the voting power of the investee, unless it is clearly evidenced that such influence does not exist. Under the equity method, investments in associates are initially recognized at cost and subsequently adjusted by Grupo Aval´s share in the associate’s income and other comprehensive income with credit or charge to Grupo Aval’s profit or loss account and other comprehensive income, respectively of the net income, and other comprehensive income of the investee. Dividends received from associates and joint ventures are recognized as a reduction in the carrying amount of the investment. Where Grupo Aval´s share of losses in an equity-accounted investment equals or exceeds its interest in the entity, including any other unsecured long-term receivables, Grupo Aval does not recognize further losses, unless it has incurred obligations or made payments on behalf of the other entity. Unrealized gains on transactions between Grupo Aval and its associates are eliminated to the extent of Grupo Aval’s interest in these entities. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the asset transferred. Accounting policies of associates have been changed where necessary to ensure consistency with the policies adopted by Grupo Aval. The carrying amount of associates are tested for impairment. d) A joint arrangement is one in which two or more parties have joint control of the arrangement. Joint arrangements are divided into joint operations or joint ventures. The classification depends on the contractual rights and obligations of each investor, rather than the legal structure of the joint arrangement, the joint operations in which the parties having joint control of the agreement have rights to the assets and obligations with respect to the liabilities relating to the agreement. The joint ventures, wherein the parties having joint control, are entitled to the net assets of the agreement. Grupo Aval recognizes joint operations in the consolidated financial statements based on their proportional and contractual participation in each of the assets, liabilities and profit or loss of the contract or entity wherein the agreement is held. Grupo Aval recognizes joint ventures through the equity method, in the same manner as investments in associates.
Description of accounting policy for functional currency [text block]	2.2 Functional and presentation currency Considering that the majority of the Group´s business activities as well as the generation and use of cash of Grupo Aval is in Colombian pesos, the Colombian peso is the currency that most accurately represents the economic environment of Grupo Aval’s operations, both for the consolidated financial statements and for the parent company. Foreign subsidiaries have functional currencies different from the Colombian peso, which are translated to Colombian pesos for presentation purposes.
Description of accounting policy for foreign currency transaction [Text Block]	2.3 Monetary assets and liabilities denominated in foreign currencies are translated into the functional currency using the prevailing exchange rate at the reporting date. Non-monetary assets and liabilities denominated in foreign currencies in terms of historical costs are measured using the exchange rate at the transaction date. Financial instruments measured at fair value are converted using the exchange rate at the date the fair value was determined. Profits or losses resulting from the translation process are recognized in profit or loss, except for financial instruments designated as hedging instruments. As of December 31, 2019 and 2018, the representative market rates as computed and certified by the Superintendency of Finance (for the U.S. $ which is the most representative foreign currency for Grupo Aval´s transactions) were Ps. 3,277.14 and Ps. 3,249.75 per U.S. $1, respectively.
Description of Accounting Policy for Changes in Accounting Policy [Policy Text Block]	2.4 Changes in accounting policies A . IFRS 16 “Leases” Grupo Aval has adopted IFRS 16 using the modified retrospective approach with the cumulative effect of initial application being recognized on January 1, 2019. Grupo Aval has not restated comparatives for the 2018 reporting period, as permitted under the specific transitional provisions in the standard. The reclassifications and the adjustments arising from the new leasing rules are therefore recognized in the opening Condensed Consolidated Statement of Financial Position on January 1, 2019 . IFRS 16 introduced a single lessee’s accounting model. As a result, Grupo Aval, as a lessee, has recognized right-of-use assets representing its rights to use the underlying assets and lease liabilities representing its obligation to make lease payments. Lessor accounting remains unchanged from previous accounting policies. Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments: · fixed payments (including in-substance fixed payments), less any lease incentives receivable, · variable lease payments that are based on an index or a rate, · amounts expected to be payable by the lessee under residual value guarantees, · the exercise price of a purchase option if the lessee is reasonably certain it will exercise that option, and · payments of penalties for terminating the lease, if the lease term reflects the lessee exercising that option. The lease payments are discounted using the interest rate implicit in the lease, if that rate can be determined, or Grupo Aval’s incremental borrowing rate. Right-of-use assets are measured at cost comprised of the following: · the amount of the initial measurement of lease liability, · any lease payments made at or before the commencement date less any lease incentives received, · any initial direct costs, and · restoration costs. Payments associated to short-term leases and leases of low-value assets are recognized on a straight-line basis as a rent expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less. Low-value leased assets comprise IT-equipment and small items of office furniture. Extension and termination options are included in a number of property and equipment leases across Grupo Aval. These terms are used to maximize operational flexibility in terms of managing contracts. Adjustments recognized on adoption of IFRS 16 Upon adoption of IFRS 16, Grupo Aval recognized lease liabilities in relation to leases which had previously been classified as ‘operating leases’ under the principles of IAS 17 Leases. These liabilities were measured at the present value of the remaining lease payments, discounted using the lessee’s incremental borrowing rate as of January 1, 2019. Some right-of-use assets related with property leases were measured on a retrospective basis as if the new rules had always been applied. Other right-of use assets were measured at the amount equal to the lease liability, adjusted by the amount of any prepaid or accrued lease payments relating to that lease recognized in the balance sheet as of January, 1, 2019. There were no onerous lease contracts that would have required an adjustment to the right-of-use assets at the date of initial application. Recognition of right-of-use January 1, 2019 Right of use assets Ps. 2,217,380 Deferred tax liabilities (636,017) Total 1,581,363 Retained earnings Ps. (40,272) Retained earnings related to right-of-use net deferred tax 13,290 Total Ps. (26,982) Net effect Ps. Recognition of financial liabilities January 1, 2019 Financial liabilities - Lease liabilities Ps. 2,225,545 Provisions for right-of-use dismantling 32,107 Deferred tax assets (649,307) Net effect Ps. 1,608,345 When measuring lease liabilities for leases thar were classified as operating leases, Grupo Aval discounted lease payments using its incremental borrowing rate at January 1, 2019. The weighted-average rate applied was 6.07% January 1, 2019 Operating lease commitments at December 31, 2018 as disclosed under IAS 17 in the Group’s consolidated financial statements Ps. Discounted using the incremental borrowing rate Add/(less): adjustments as a result of a different treatment of extension and termination options 1,275,475 Add/(less): adjustments relating to changes in the index or rate affecting variable payments (Less): Recognition exemption for leases of low-value assets (35,987) (less): Recognition exemption for leases with less than 12 months of lease term at transition Lease liabilities recognised at 1 January 2019 Ps. 2,225,545 In applying IFRS 16 for the first time, the Group has used the following practical expedients permitted by the standard: · the use of a single discount rate to a portfolio of leases with reasonably similar characteristics, · the accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases, · the exclusion of initial direct costs for the measurement of the right-of-use asset at the date of initial application, and · the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease. Grupo Aval has also elected not to reassess whether a contract is or contains a lease at the date of initial application. Instead, for contracts entered into before the transition date Group Aval relied on its assessment made applying IAS 17 and IFRIC 4 for determining whether an arrangement contains a lease. Impact on changes in accounting policies, as of January 1, 2018 The following table summarizes the impact, net of taxes, of the adoption of IFRS 15 and IFRS 9 in the statement of financial position as of January 1, 2018. Impact of Reference the adoption IFRS 15 Revenue from contracts with customers B Ps. 391,281 IFRS 9 Financial Instruments C (784,399) Net impact at January 1, 2018 Ps. (393,118) B. IFRS 15 “Revenue from contracts with customers” Grupo Aval has adopted Revenue from Contracts with Customers IFRS 15 using the cumulative effect method, with the effect of initial adoption recognized on January 1, 2018. Accordingly, the information presented for 2017, has not been restated – i.e. it is presented, as previously reported, under – IAS 18 Revenue, IAS 11 Construction Contracts, IFRIC 12 “Service Concession Arrangements” and related interpretations. Additionally, the disclosure requirements in IFRS 15 have not generally been applied to comparative information. The following table summarizes the impact net of taxes, of the adoption of IFRS 15 in the statement of financial position as of January 1, 2018. Impact of the adoption of IFRS 15 Operation and construction services (Concessions) as of January 1, 2018 Commissions related to funding (see note 16) Ps. 12,744 Contract liability (see note 24) (531,804) Financial assets (see note 16) 450,878 Intangible assets (see note 16) 619,949 Deferred tax effect (181,680) Ps. 370,087 Customer loyalty programs Customer loyalty programs 32,232 Deferred tax effect (11,038) Ps. 21,194 Net impact retained earnings at January 1, 2018 Ps. 391,281 C. IFRS 9 “Financial Instruments” The following table summarizes the impact, net of tax, of our transition to IFRS 9 on the opening balance of reserves and retained earnings and Other Comprehensive Income (“OCI”) as of January 1, 2018 (for a description of the transition method, see (iv) below). Impact of adopting IFRS 9 on opening balance of: Reserves and Total retained earnings OCI equity Recognition of changes in measurement due in classification under IFRS 9 Ps. — Ps. 71,229 Ps. 71,229 Recognition of expected credit losses under IFRS 9 (1,255,060) 56,198 (1,198,863) Impact on equity method due to impairment of other accounts receivable from associates — (3,691) (3,691) Deferred tax effect 366,650 (19,725) 346,926 Impact as of January 1, 2018 Ps. (888,411) Ps. 104,011 Ps. (784,399) Impairment of financial assets Loss allowance as of December 31, 2017 under IAS 39 (5,875,018) Additional impairment recognized as of January 1, 2018 on: Loans (1,163,009) Credit Commitments (16,217) Other accounts receivable (18,907) Impact on equity method investees due to impairment of other accounts receivable from associates (3,691) Debt securities measured at amortized cost (672) Other financial assets (58) Loss allowance as of January 1, 2018 under IFRS 9 (7,077,572) · Recognition of expected credit losses under IFRS 9 for debt financial assets at FVOCI impacts OCI and retained earnings at the same time, therefore the net impact on total equity is zero. The table below shows the impact on retained earnings from impairment: Impairment loss due to credit risk as of December 31, 2017 under IAS 39 (71,708) Additional impairment recognized as of January 1, 2018 on: Debt securities measured at FVOCI (56,198) Loss allowance as of January 1, 2018 under IFRS 9 (127,906)
Description of Accounting Policy For Financial Assets and Financial Liabilities [Policy Text Block]	2.5 Financial assets and financial liabilities i. Recognition and initial measurement Grupo Aval initially recognizes loans and advances, deposits, debt securities issued and subordinated liabilities on the date on which they are originated. All other financial instruments (including regular-purchases and sales of financial assets) are recognized on the trade date, which is the date in which Grupo Aval becomes a party to the contractual provisions of the instrument. A financial asset or financial liability is initially measured at fair value and in addition for instruments measured at amortized cost or FVOCI, transaction costs are added if directly attributable to its acquisition or issuance. ii. Classification Financial assets On initial recognition, a financial asset is classified as: amortized cost, Fair Value Through Other Comprehensive Income (“FVOCI”) or Fair Value Through Profit or Loss (“FVTPL”). A financial asset is measured at amortized cost if it meets both of the following conditions and is not designated as at FVTPL: · The asset is held within a business model in which the objective is to hold assets to collect contractual cash flows; and · The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. A debt instrument is measured at FVOCI only if it meets both of the following conditions and is not designated as at FVTPL: · The asset is held within a business model whose objective is achieved both by collecting contractual cash flows and selling financial assets; and · The contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. On initial recognition of an equity investment that is not held for trading, Grupo Aval may irrevocably elect to present subsequent changes in fair value in Other Comprehensive Income (“OCI”). This election is made on an investment-by-investment basis. All other financial assets are classified as measured at FVTPL. Business model assessment Grupo Aval makes an assessment of the objective of a business model in which an asset is held at a portfolio level because this best reflects the way the business is managed, and information is provided to management. The information considered includes: · The established policies and objectives for the portfolio and their actual application. In particular, whether management’s strategy focuses on earning contractual interest revenue, maintaining a particular interest rate profile, matching the duration of the financial assets to the duration of the liabilities that are funding those assets or realizing cash flows through the sale of the assets; · How the performance of the portfolio is evaluated and reported to Grupo Aval’s management; · The risks that affect the performance of the business model (and the financial assets held within that business model) and how those risks are managed; and · The frequency, volume and timing of sales of financial assets in prior periods, the reasons for such sales and its expectations about future sale activity. However, information about sales activity is not considered in isolation, but as part of an overall assessment of how Grupo Aval’s stated objective for managing the financial assets is achieved and how cash flows are realized. Financial assets that are held for trading and which performance is evaluated on a fair value basis are measured at FVTPL because they are neither held to collect contractual cash flows nor held both to collect contractual cash flows and to sell financial assets. Assessment whether contractual cash flows are solely payments of principal and interest (SPPI) For the purposes of this assessment, ‘principal’ is defined as the fair value of the financial asset on initial recognition. ‘Interest’ is defined as consideration for the time value of money and for the credit risk associated with the principal amount outstanding during a particular period of time and for other basic lending risks and costs (e.g. liquidity risk and administrative costs), as well as profit margin. In assessing whether the contractual cash flows are solely payments of principal and interest, Grupo Aval considers the contractual terms of the instrument. This includes assessing whether the financial asset contains a contractual term that could change the timing or amount of contractual cash flows such that it would not meet this condition. In making the assessment, Group Aval considers: · Contingent events that would change the amount and timing of cash flows; · Leverage covenants; · Prepayment and extension terms; · Terms that limit Grupo Aval’s claim to cash flows from specified assets; and · Features that modify consideration of the time value of money. Interest rates on certain commercial and consumer loans originated by Grupo Aval are pegged to standard variable rates (SVRs) generally used in each country where Grupo Aval operates and includes a discretional spread. In Colombia, the SVRs are based on the DTF (the DTF rate is the weighted average interest rate paid by commercial banks, merchant banks and financing companies for certificates of deposit with maturities of 90 days) or the interbank rate (Interés Bancario de Referencia), or “IBR” rates which are calculated weekly by the Central Bank based on information collected from the Colombian financial system, plus a discretionary spread, and in the case of loans in foreign currency Grupo Aval uses Libor interest rates plus a discretionary spread. In these cases, Grupo Aval will assess whether the discretionary feature is consistent with the SPPI criteria by considering a number of factors, including whether: · Borrowers are able to prepay the loans without significant penalties, · Market competition ensures that interest rates are consistent between banks; and · Any regulatory or customer protection framework is in place that requires banks to treat customers fairly. A prepayment feature is consistent with the SPPI criterion if the prepayment amount substantially represents unpaid amounts of principal and interest on the principal amount outstanding, which may include reasonable compensation for early termination of the contract. In addition, a prepayment feature is treated as consistent with this criterion if a financial asset is acquired or originated at a premium or discount to its contractual par amount, and the prepayment amount substantially represents the contractual par amount plus accrued (but unpaid) contractual interest (which may also include reasonable compensation for early termination), and the fair value of the prepayment feature is insignificant upon initial recognition. Financial liabilities Grupo Aval classifies its financial liabilities, other than derivatives, financial guarantees and loan commitments, as measured at amortized cost. iii. Reclassifications Financial assets Financial assets are not reclassified subsequent to their initial recognition, except in the period after Grupo Aval’s entities changes their business model for managing financial assets. iv. Derecognition Financial assets Grupo Aval derecognizes a financial asset when the contractual rights to the cash flows from the financial asset expire (see also (v)), or it transfers the rights to receive the contractual cash flows in a transaction in which substantially all of the risks and rewards of ownership of the financial asset are transferred or in which Grupo Aval neither transfers nor retains substantially all of the risks and rewards of ownership and it does not retain control of the financial asset. On derecognition of a financial asset, the difference between the carrying amount of the asset (or the carrying amount allocated to the portion of the asset derecognized) and the sum of (i) the consideration received (including any new asset obtained less any new liability assumed) and (ii) any cumulative gain or loss that had been recognized in OCI is recognized in profit or loss. Any cumulative gain/loss recognized in OCI in respect of equity investment securities designated as at FVOCI is not recognized in profit or loss on derecognition of such securities, as explained in (2.10). Any interest in transferred financial assets that qualify for derecognition that is created or retained by Group Aval is recognized as a separate asset or liability. Grupo Aval enters into transactions whereby it transfers assets recognized on its statement of financial position but retains either all or substantially all of the risks and rewards of the transferred assets or a portion of them. In such cases, the transferred assets are not derecognized. Examples of such transactions are securities lending and sale-and-repurchase transactions. When assets are sold to a third party with a concurrent total rate of return swap on the transferred assets, the transaction is accounted for as a secured financing transaction similar to sale-and repurchase transactions, because Grupo Aval retains all or substantially all of the risks and rewards of ownership of such assets. In transactions in which Grupo Aval neither retains nor transfers substantially all of the risks and rewards of ownership of a financial asset and it retains control over the asset, Grupo Aval continues to recognize the asset to the extent of its continuing involvement, determined by the extent to which it is exposed to changes in the value of the transferred asset. In certain transactions, Grupo Aval retains the obligation to service the transferred financial asset for a fee. The transferred asset is derecognized if it meets the derecognition criteria. An asset or liability is recognized for the servicing contract if the servicing fee is more than adequate (asset) or is less than adequate (liability) for performing the servicing. Financial liabilities Grupo Aval derecognizes a financial liability when its contractual obligations are discharged or cancelled or expire. v. Modifications of financial assets and financial liabilities Financial assets If the terms of a financial asset are modified, then Grupo Aval assesses whether the cash flows of the modified asset are substantially different. If the cash flows are substantially different, then the contractual rights to cash flows from the original financial asset are deemed to have expired. In this case, the original financial asset is derecognized (see (iv)) and a new financial asset is recognized at fair value plus any eligible transaction costs. Any fees received as part of the modification are accounted for as follows: · Fees that are considered in determining the fair value of the new asset and fees that represent reimbursement of eligible transaction costs are included in the initial measurement of the asset; and · Other fees are included in profit or loss as part of the gain or loss on derecognition. If cash flows are modified when the borrower is in financial difficulties, then the objective of the modification is usually to maximize recovery of the original contractual terms rather than to originate a new asset with substantially different terms. If Group Aval plans to modify a financial asset in a way that would result in foregoing of cash flows, then it first considers whether a portion of the asset should be written off before the modification takes place (see below for write ‑ off policy). This approach impacts the result of the quantitative evaluation and means that the derecognition criteria are not usually met in such cases. If the modification of a financial asset measured at amortized cost or FVOCI does not result in derecognition of the financial asset, then Grupo Aval first recalculates the gross carrying amount of the financial asset using the original effective interest rate of the asset and recognizes the resulting adjustment as a recovery or impairment through in the Consolidated Statement of Income. For floating-rate financial assets, the original effective interest rate used to calculate the modification gain or loss is adjusted to reflect current market terms at the time of the modification. Any costs or fees incurred, and fees received as part of the modification adjust the gross carrying amount of the modified financial asset and are amortized over the remaining term of the modified financial asset. Financial liabilities Grupo Aval derecognizes a financial liability when its terms are modified, and the cash flows of the modified liability are substantially different. In this case, a new financial liability based on the modified terms is recognized at fair value. The difference between the carrying amount of the financial liability extinguished and the new financial liability with modified terms is recognized in the Consolidated Statement of Income. If the modification of a financial liability measured at amortized cost does not result in derecognition of the financial liability, then Grupo Aval first recalculates the gross carrying amount of the financial liability using the original effective interest rate of the liability and recognizes the resulting adjustment as interest expense through in the Consolidated Statement of Income. For floating-rate financial assets, the original effective interest rate used to calculate the modification gain or loss is adjusted to reflect current market terms at the time of the modification. Any costs or fees incurred, and fees received as part of the modification adjust the gross carrying amount of the modified financial liability and are amortized over the remaining term of the modified financial liability. vi. Offsetting Financial assets and liabilities are offset, and the net amount is recognized in the consolidated statement of financial position, when there is a legally enforceable right to offset recognized amounts and management intends to settle them on a net basis or to realize the asset and settle the liability simultaneously. Income and expenses are presented on a net basis only when permitted under IFRS, or for gains and losses arising from a group of similar transactions such as in Grupo Aval’s trading activity. vii. Fair value measurement ‘Fair value’ is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or, in its absence, the most advantageous market to which Grupo Aval has access at that date. When one is available, Grupo Aval measures the fair value of an instrument using the quoted price in an active market for that instrument. A market is regarded as active if transactions for the asset or liability take place with sufficient frequency and volume to provide pricing information on an ongoing basis. If there is no quoted price in an active market, then Grupo Aval uses valuation techniques that maximize the use of relevant observable inputs and minimize the use of unobservable inputs. The chosen valuation technique incorporates all of the factors that market participants would take into account in pricing a transaction. The best evidence of the fair value of a financial instrument on initial recognition is normally the transaction price – i.e. the fair value of the consideration given or received. If Grupo Aval determines that the fair value on initial recognition differs from the transaction price and the fair value is evidenced neither by a quoted price in an active market for an identical asset or liability nor based on a valuation technique for which any unobservable inputs are judged to be insignificant in relation to the measurement, then the financial instrument is initially measured at fair value, adjusted to defer the difference between the fair value on initial recognition and the transaction price. Subsequently, that difference is recognized the Consolidated Statement of Income on an appropriate basis over the life of the instrument but no later than when the valuation is wholly supported by observable market data or the transaction is closed out. Portfolios of financial assets and financial liabilities that are exposed to market risk and credit risk that are managed by Grupo Aval on the basis of the net exposure to either market or credit risk are measured on the basis of a price that would be received to sell a net long position (or paid to transfer a net short position) for the particular risk exposure. Portfolio-level adjustments – e.g. bid-ask adjustment or credit risk adjustments that reflect the measurement on the basis of the net exposure – are allocated to the individual assets and liabilities on the basis of the relative risk adjustment of each of the individual instruments in the portfolio. The fair value of a financial liability with a demand feature (e.g. a demand deposit) is not less than the amount payable on demand, discounted from the first date on which the amount could be required to be paid. Grupo Aval recognizes transfers between levels of the fair value hierarchy as of the end of the reporting period during which the change has occurred. See Note 5. viii. Repurchase agreements and reverse repurchase agreements Purchases of financial instruments under a non-optional resale agreement are measured at fair value and recognized as financial assets in the consolidated statement of financial position under loans and receivables to credit institutions. The excess of the purchase prices over the resale prices is recognized as interest income over the contractual term. Sales of financial instruments under a non-optional repurchase agreement are measured at fair value and recognized as liabilities in the consolidated statement of financial position under Deposits from the Central Bank – Repurchase agreements, Deposits from credit institutions – Repurchase agreements or Customer deposits – Repurchase agreements. The excess of the sales prices over the repurchase prices is recognized as interest expense over the contractual term. Retained interests (i.e. the assets that collateralize the repurchase agreements) are primarily classified as fair value through OCI and measured at fair value. ix. Impairment of financial assets Grupo Aval recognizes loss allowances for Expected Credit Losses – “ECL” on the following financial instruments that are not measured at FVTPL: · Debt instruments; · Loans and lease receivables; · Financial guarantee contracts issued; · Loan commitments issued, and · Other accounts receivable No credit impairment loss is recognized on equity investments. Grupo Aval measures loss allowances at an amount equal to lifetime ECL (Stage 2 and stage 3), except for the following, for which they are measured as 12‑month ECL (Stage 1): · Debt investment securities that are determined to have low credit risk at the reporting date; and · Other financial instruments (other than loans and lease receivables) on which credit risk has not increased significantly – “SICR” from their initial recognition. A financial asset is classified as a low credit risk asset if the issuer is related to an investment grade credit rating. 12‑month ECL are the portion of ECL that result from default events on a financial instrument that are possible within the 12 months after the reporting date. Measurement of ECL Measurement of ECL is described in Note 4(4.1.5 Amounts arising from ECL). Modified Financial Assets If the terms of a financial asset are renegotiated or modified or an existing financial asset is replaced with a new one due to financial difficulties of the borrower, then an assessment is made of whether the financial asset should be derecognized (see (iv)) and ECL are measured as follows: · If the restructuring is not expected to result in derecognition of the existing asset, then the expected cash flows arising from the modified financial asset are included in calculating the cash shortfalls from the existing asset (see Note 4(4.1.1)). · If the restructuring is expected to result in derecognition of the existing asset, then the expected fair value of the new asset is treated as the final cash flow from the existing financial asset at the time of its derecognition. This amount is included in calculating the cash shortfalls from the existing financial asset that are discounted from the expected date of derecognition to the reporting date using the original effective interest rate of the existing financial asset. Credit-impaired financial assets At each reporting date, Grupo Aval assesses whether financial assets carried at amortized cost and debt financial assets carried at FVOCI are credit-impaired. A financial asset is ‘credit-impaired’ when one or more events that have a detrimental impact on the estimated future cash flows of the financial asset have occurred. Evidence that a financial asset is credit-impaired includes the following observable data: · Significant financial difficulty of the borrower or issuer; · A breach of contract such as a default or past due event; · The restructuring of a loan or advance by Grupo Aval on terms that Grupo Aval’ entities would not consider otherwise; · It is becoming probable that the borrower will enter bankruptcy or other financial reorganization; or · The disappearance of an active market for a security because of financial difficulties. A loan that has been renegotiated due to a deterioration in the borrower’s condition is usually considered to be credit-impaired unless there is evidence that the risk of not receiving contractual cash flows has reduced significantly and there are no other indicators of impairment. In addition, a loan that is overdue for 90 days (for mortgages when overdue for 180 days) or more is considered impaired. In making an assessment of whether an investment in sovereign debt is credit-impaired, Grupo Aval considers the following factors. · The market’s assessment of creditworthiness as reflected in the bond yields. · The rating agencies’ assessments of creditworthiness. · The country’s ability to access the capital markets for new debt issuance. · The probability of debt being restructured, resulting in holders suffering losses through voluntary or mandatory debt forgiveness; and · The international support mechanisms in place to provide the necessary support as ‘lender of last resort’ to that country, as well as the intention, reflected in public statements, of governments and agencies to use those mechanisms. This includes an assessment of the depth of those mechanisms and, irrespective of the political intent, whether there is the capacity to fulfil the required criteria. Presentation of allowance for ECL in the statement of financial position Loss allowances for ECL are presented in the statement of financial position as follows: · Financial assets measured at amortized cost: as a deduction from the gross carrying amount of the assets; · Loan commitments and financial guarantee contracts: generally, as “other provisions”; · Where a financial instrument includes both a drawn and an undrawn component, and Grupo Aval cannot identify the ECL on the loan commitment component separately from those on the drawn component: Grupo Aval presents a combined loss allowance for both components. The combined amount is presented as a deduction from the gross carrying amount of the drawn component. Any excess of the loss allowance over the gross amount of the drawn component is presented as an “other provision”; and · Debt instruments measured at FVOCI: no loss allowance is recognized in the statement of financial position because the carrying amount of these assets is their fair value. However, the ECL is disclosed and is recognized as part of the net movement recognized in the fair value reserve OCI. Write-off Loans and debt securities are written off (either partially or in full) when there is no realistic prospect of recovery. This is generally the case when Grupo Aval determines that the borrower does not have assets or sources of income that could generate sufficient cash flows to repay the amounts subject to the write-off. Recoveries of amounts previously written off are included in “impairment losses (recoveries) on financial assets” in the Consolidated Statement of Income. Financial assets that are written off could still be subject to enforcement activities in order to comply with Grupo Aval’s procedures for recovery of amounts due. The contractual amount outstanding on the financial assets that were written off during the reporting period are disclosed in note 4.1.5 Amounts arising from ECL; Loss Allowance reconciliation tables.
Description of accounting policy for restricted cash and cash equivalents [text block]	2.6 Cash and cash equivalents Cash and cash equivalents include cash, bank deposits, and other short-term investments with original maturities of three months or less from the date of their acquisition that are subject to an insignificant risk of changes in their fair value and are used by Grupo Aval in the management of its short-term commitments.
Description Of Accounting Policy For Trading Assets And Liabilities [Text Block]	2.7 Trading assets and liabilities ‘Trading assets and liabilities’ are those assets and liabilities that Grupo Aval acquires or incurs principally for the purpose of selling or repurchasing in the near term or holds as part of a portfolio that is managed together for short-term profit or position taking. Trading assets and liabilities are initially recognized and subsequently measured at fair value in the Statement of Financial Position, with transaction costs recognized in Statement of Income. All changes in fair value are recognized as part of net trading income in Statement of Income.
Description of accounting policy for derivative financial instruments and hedging [text block]	2.8 Derivatives a) Derivative financial instruments and hedge accounting A derivative is a financial instrument in which value changes respond to changes in one or more variables denominated as an “underlying” (a specific interest rate, the price of a financial instrument, a listed commodity, a foreign currency exchange rate, etc.), that has an initial net investment smaller than would be required for other instruments that have a similar response to the mentioned variable and that is settled in a future date. Grupo Aval trades in financial markets, forward contracts, future contracts, swaps and options that fulfil the definition of a derivative. Financial assets and liabilities from transactions with derivatives are generally not offset in the consolidated statement of financial position. However, when there is a legal and exercisable right to offset the recognized values and Grupo Aval intends to be settle them on a net basis or to realize the assets and settle the liability simultaneously, derivatives are presented as net values in the consolidated statement of financial position. Derivative transactions are initially recognized at fair value. Subsequent changes in the fair value are recognized in profit or loss, unless the derivative instrument is designated as a hedging instrument and, in this case, the accounting criteria will depend on the nature of the hedged item, as described below. At the beginning of the hedging transaction, Grupo Aval formally documents the existing relationship between the hedging instrument and the hedged item, including the risk management objective and strategy in undertaking the hedging relationship. It also documents its assessment, both initially as well as on a recurring basis, of whether the hedging relationship is highly effective in offsetting the changes in fair value or cash flows of the hedged items. (i) For fair value hedge of assets or liabilities and firm commitments, changes in the fair value of the derivative instrument are recognized in profit or loss, as well as any other change in the fair value of the asset, liability or firm commitment attributable to the hedge risk, (ii) For cash flow hedge of a particular risk associated with a recognized asset or liability or a projected highly probable transaction, the effective portion of changes in the fair value of the derivative is recognized in other comprehensive income. The gain or loss relating to the portion that is not effective for hedging or that does not relate to the hedged risk is immediately recognized in profit or loss. The values accumulated in other comprehensive income are transferred to profit or loss in the same period in which the hedged item is recognized in profit or loss. (iii) Hedging of net investments in a foreign operation is recognized similarly to cash flow hedging: the effective portion of changes in fair value of the hedging instrument is recognized in other comprehensive income, and the ineffective portion of the changes in fair value of the derivative is recognized in profit or loss. The hedging instrument’s gains or losses accumulated in equity will be recognized in profit or loss when the net investment in foreign operations is sold in whole or proportionally, if partially disposed of. b) Embedded derivatives Derivatives may be embedded in another contractual arrangement (a host contract). Grupo Aval accounts for an embedded derivative separately from the host contract when: · The host contract is not an asset in the scope of IFRS 9; · The host contract is not itself carried at FVTPL; · The terms of the embedded derivative would meet the definition of a derivative if they were contained in a separate contract; and · The economic characteristics and risks of the embedded derivative are not closely related to the economic characteristics and risks of the host contract. Separated embedded derivatives are measured at fair value, with all changes in fair value recognized in profit or loss unless they form part of a qualifying cash flow or net investment hedging relationship. Separated embedded derivatives are presented in the statement of financial position together with the host contract.
Description of accounting policy for loans and receivables [text block]	2.9 Loans ‘Loans and receivables’ captions in the statement of financial position include: · Loans measured at amortized cost (see 2.5(ii)); they are initially measured at fair value plus incremental direct transaction costs, and subsequently at their amortized cost using the effective interest method; · Finance lease receivables. When Grupo Aval purchases a financial asset and simultaneously enters into an agreement to resell the asset (or a substantially similar asset) at a fixed price on a future date (reverse repo or stock borrowing), the arrangement is accounted for as a loan, and the underlying asset is not recognized in Grupo Aval’s financial statements. The effective interest rate method is a method of calculating the amortized cost of a financial asset and allocating the interest income or expense over the relevant period. The effective interest rate is the rate that discounts future cash payments or receipts (without consideration of future credit losses, over the expected life of the financial instrument) to the net carrying amount of the financial asset at initial recognition. In the process of calculating the effective interest rate, Grupo Aval estimates the cash flows considering the contractual terms including prepayment expectations of the financial instrument for portfolios with high prepayment levels, except for future credit losses and considering the initial fair value plus transaction costs and premiums granted, minus commissions and discounts received which form integral part of the effective rate.
Description of accounting policy for investment in associates and joint ventures [text block]	2.10 Investment securities The ‘investment securities’ line in the statement of financial position includes: · Debt investment securities measured at amortized cost (see 2.6(ii)); These are initially measured at fair value plus incremental direct transaction costs, and subsequently at their amortized cost using the effective interest method; · Debt and equity investment securities mandatorily measured at FVTPL (see 2.6(ii)); These are at fair value with changes recognized immediately in profit or loss; · Debt securities measured at FVOCI; and · Equity investment securities designated as at FVOCI. For debt securities measured at FVOCI, gains and losses are recognized in OCI, except for the following, which are recognized in profit or loss in the same manner as for financial assets measured at amortized cost: · Interest revenue using the effective interest method; · ECL and reversals; and · Foreign exchange gains and losses. When a debt security measured at FVOCI is derecognized, the cumulative gain or loss previously recognized in OCI is reclassified from equity and recognized as profit or loss in the Consolidated Statement of Income. Grupo Aval elects to present in OCI changes in the fair value of certain investments in equity instruments that are not held for trading. The election is made on an instrument-by-instrument basis on initial recognition and is irrevocable. Gains and losses on such equity instruments are never reclassified to profit or loss and no impairment is recognized in profit or loss. Dividends are recognized in profit or loss unless they clearly represent a recovery of part of the cost of the investment, in which case they are recognized in OCI. Cumulative gains and losses recognized in OCI are transferred to retained earnings upon disposal of an investment.
Description of accounting policy for financial liabilities [text block]	2.11 Financial liabilities A financial liability is any contractual liability of Grupo Aval to deliver cash or other financial asset to another entity or person, or to exchange financial assets or financial liabilities under potentially unfavorable conditions for Grupo Aval, or a contract which will be terminated or could be settled using equity instruments owned by the entity. Financial liabilities are initially recognized based on their fair value, which is usually equal to the transaction value less directly attributable costs. Subsequently, such financial liabilities are measured at their amortized cost according to the effective interest rate method determined at initial recognition and recognized in profit or loss.
Description Of Accounting Policy For Financial Guarantees Explanatory [text block]	2.12 Financial guarantees Financial guarantees are those contracts requiring that the issuer carries out specific payments to reimburse the creditor for losses incurred when a specific debtor defaults in its payment obligation, in accordance with the original or modified conditions, of a debt instrument; regardless of its legal form. Financial guarantees issued or commitments to provide a loan at a below-market interest rate are initially measured at fair value. Subsequently, they are measured as follows: · At the higher of the loss allowance determined in accordance with IFRS 9 (see 2.5 (vii)) and the amount initially recognized less, when appropriate, the cumulative amount of income recognized in accordance with the principles of IFRS 15; and As the reporting date Grupo Aval has no issued loan commitments that are measured at FVTPL. For credit risk impairment losses established over financial guarantee contracts under IFRS 9, are recognized as liabilities under “Provisions – other provisions” and recognized in profit or loss, see note 2.5 ix “Impairment of financial assets in the statement of financial position”.
Description of accounting policy for non-current assets or disposal groups classified as held for sale and discontinued operations [text block]	2.13 Non-current assets held for sale Foreclosed assets and non-current assets held for sale, which Grupo Aval intends to sell in a period of less than one year, and it is considered highly probable that their value will be recovered primarily through sale rather than through continuing use, are recognized as "non-current assets held for sale". These assets are measured at the lower of their carrying value at the time of transfer and fair value, less estimated disposal costs.
Description of accounting policy for property, plant and equipment [text block]	2.14 Property, plant and equipment for own use Property, plant and equipment include the assets, owned or under financial leases held by Grupo Aval for current or future use for more than one period. They are recognized in the consolidated statement of financial position at their acquisition or construction cost, less the corresponding accumulated depreciation and, if applicable, the estimated impairment losses resulting from comparing the carrying amount of each asset with its recoverable value. Depreciation is calculated by applying the straight-line method over the acquisition cost of the assets (except for the bearer plants, which are depreciated based on production units), less any residual value; land is not depreciated. Depreciation is estimated on a straight-line basis during the estimated useful life of the asset. The annual depreciation rates for each type of assets are: Asset Useful Life Own use buildings According to appraisals Equipment, furniture and accessories From 3 to 10 years Machinery and equipment From 5 to 25 years Computer equipment From 3 to 12 years Vehicles From 5 to 10 years Bearer plants From 25 to 35 years Conservation and maintenance expense is recognized when incurred as “Administrative Expense” (see note 2.21 impairment of non-financial assets). A bearer plant is a live plant that meets the following requirements: a) It is used for the manufacturing or supply of agricultural products; b) It is expected to produce for more than one period; and c) It has a remote probability of being sold as an agricultural product, except for irregular sales related to thinning and trimming. Bearer plants that are under the set-up and growing phase are subject to a biological transformation which is reflected through cost accumulation until they reach their maturity level. In the case of the African oil palm, maturity is reached in the second year, while for rubber plants maturity is reached in the seventh year. After reaching their maturity, bearer plants are considered developed and the future economic benefits arise from the sale of the fruit produced during the life of the plant. Bearer plants are measured at their cost less accumulated depreciation and any impairment losses. The useful life is equal to the plants´ production periods. The useful life of the rubber plant is 35 years while the useful life of the African oil palm is 25 years. The depreciation method used is the estimated production units as it accurately reflects the use of the assets. If the bearer plant is sold for timber at the end of the useful life the value received is considered the residual value of the asset.
Description of accounting policy for investment property [text block]	2.15 Investment properties Land and buildings, considered in whole or in part, that are held to earn rental income or for capital appreciation, rather than for own use or sale in the ordinary course of business. Investment properties are recognized initially at cost, including all costs associated with the transaction, and subsequently measured at fair value, with changes in fair value recognized in profit or loss.
Description of accounting policy for leases [text block]	2.16 Leases Grupo Aval has applied IFRS 16 using the modified retrospective approach and therefore the comparative information has not been restated and continues to be reported under IAS 17 “Accounting for Leases” and IFRIC 4 “Determining whether an Arrangement contains a Lease”. The details of accounting policies under IAS 17 and IFRIC 4 are disclosed separately. Policy applicable from January 1, 2019 Lessee accounting At inception of a contract, Grupo Aval assesses whether a contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. To assess whether a contract conveys the right to control the use of an identified asset, the Group uses the definition of a lease in IFRS 16. Grupo Aval recognises a right-of-use asset and a lease liability at the lease commencement date. The right-of-use asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial direct costs incurred and an estimate of costs to dismantle and remove any improvements made. The right-of-use asset is subsequently depreciated using the straight-line method from the commencement date to the end of the lease term. In addition, the right-of-use asset is periodically reduced by impairment losses, if any, and adjusted for certain remeasurements of the lease liability. The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, the Group’s incremental borrowing rate. Generally, the Group uses its incremental borrowing rate as the discount rate. Grupo Aval determines its incremental borrowing rate by analysing its borrowings from various external sources and makes certain adjustments to reflect the terms of the lease and type of asset leased. When the lease liability is remeasured in this way, a corresponding adjustment is made to the carrying amount of the right-of-use asset, or is recorded in profit or loss if the carrying amount of the right-of-use asset has been reduced to zero. Grupo Aval presents right-of-use assets in ‘Tangible asstes’ and lease liabilities in ‘Borrowings from banks and others’ in the statement of financial position. Short-term leases and leases of low-value assets Grupo Aval has elected not to recognise right-of-use assets and lease liabilities for leases of low-value assets and short-term leases. The Grupo Aval recognizes the lease payments associated with these leases as an expense on a straight-line basis over the lease term. Lessor accounting When Grupo Aval acts as a lessor, it determines at lease inception whether the lease is a finance lease or an operating lease. To classify each lease, the Group makes an overall assessment of whether the lease transfers substantially all of the risks and rewards incidental to ownership of the underlying asset. If this is the case, then the lease is a finance lease; if not, then it is an operating lease. As part of this assessment, the Group considers certain indicators such as whether the lease is for the major part of the economic life of the asset. Policy applicable before January 1, 2019 Leases - Lessor accounting Leases are classified as a financial or operating lease. A lease is classified as a financial lease when it substantially transfers all the risks and rewards inherent to the property. A lease is classified as operating if it does not substantially transfer all the risks and rewards inherent to the property. Lease contracts classified as financial leases are included in the consolidated statement of financial position as “Loans” and are recognized in the same way as other loans, as explained in note 2.11. Lease contracts classified as operating lease continue to be classified as property, plant and equipment or investment Leases - Lessee accounting Up on initial recognition, leases are classified as financial or operating leases, in the same way as described above. Lease agreements classified as financial leases are included in the consolidated statement of financial position as property, plant and equipment or as investment properties, in accordance with the intention of Grupo Aval in relation to the asset and are initially recognized in assets and in liabilities simultaneously for an amount equal to the lesser of the fair value of the leased asset or the present value of the minimum lease payments. The present value of the minimum lease payments is established by using the implicit interest rate in the lease contract, or if such rate is not determinable, the average interest rate of the bonds placed by Group in the market. Any initial direct cost of the lessee is added to the recognized asset amount. After initial recognition, these assets are accounted for in the same manner as other property, plant and equipment or investment properties. The value recognized as a liability is included as a financial liability. Payments under lease contracts classified as operating are recognized on a straight-line basis in profit or loss over the lease term. Incentives received from leasing are recognized as an integral part of the total lease payments during its term.
Description of accounting policy for biological assets [text block]	2.17 Biological assets Biological assets, are measured at fair value less disposal cost, both at the time of initial recognition and at the end of reporting period, except for biological assets for which their fair value cannot be measured reliably; in which case they are measured at cost less accumulated depreciation and impairment loss. Gains and losses arising from the initial and subsequent fair value measurement of the agricultural products are included in the Consolidated Statement of Income. Costs incurred in the agricultural production process are also recognized directly in the Consolidated Statement of Income. The fair value of biological assets is determined using valuations performed by experienced internal professionals, using discounted cash flow models. The expected cash flows of the crop’s total life are determined by using the market price of the agricultural product currently in effect and the estimated productive life of plants, net of maintenance and harvest costs and of any other costs required for plant maintenance during the production period. The productive life of plants is estimated considering the age, location and type of product. The fair value of the biological assets is dependent on current market prices for each product.
Description of accounting policy for business combinations and goodwill [text block]	2.18 Business combinations and goodwill Business combinations are accounted for using the “acquisition method” when control is transferred to the controlling entity. The consideration transferred in the acquisition is generally measured at fair value, as are the identifiable net assets acquired. If non-controlling interests arise during the acquisition of control of the entity, such non-controlling interests are recognized at either fair value or at the proportionate interest in the recognized amount of the identifiable net assets of the acquiree. Goodwill is measured as the excess of the aggregate of consideration transferred, over the amount of any interest previously acquired and the net of identifiable assets acquired and liabilities assumed at acquisition date. Goodwill acquired in a business combination is assigned to each of the groups of cash-generating units from which benefit are expected as a result of the acquisition. Goodwill is not subsequently amortized; however, it is subject to an annual impairment assessment in relation to the cash-generating unit to which it has been assigned and, from which benefits are expected deriving from the synergies of business combinations. A loss due to impairment recognized on Goodwill cannot be reversed in subsequent periods.
Description of accounting policy for intangible assets other than goodwill [text block]	2.19 Other intangibles assets Other intangible assets mainly comprise software and licenses, which are initially measured at the cost of acquisition or cost of development. Costs incurred during the research phase are expensed as incurred. Development expenses which are directly attributable to design and performance tests of software and identifiable, unique and controlled by Grupo Aval are recognized as intangible assets, when the following conditions are met: · Technically, it is possible to complete the intangible asset production, so it can be available for use; · Management intends to complete the corresponding intangible asset for use; · Management has the capacity of using the intangible asset; · It is probable that future economic benefits that are attributable to the asset will flow to the entity; · There is availability of adequate technical or financial resources or other type, for completion and usage of the intangible asset; and · Costs attributable to intangible asset during its development phase can be estimated and measured in a reliable manner. Costs that are directly attributable and capitalized as part of intangible assets include personnel expense directly related to developing such programs and an adequate percent of overhead expense. Expenses that do not satisfy these criteria are recognized as incurred expenses. Disbursements over intangible assets are initially recognized as expenses of the period and they are not be subsequently recognized as intangible assets. Subsequent to their initial recognition, these assets are measured at cost less amortization, which is carried out during their estimated useful lives as follows: amortization is recognized on a straight-line basis, according to the estimated useful lives. At the end period, Grupo Aval analyzes if there is evidence based on each CGU (Cash Generating Unit), both external and internal, indicating that the intangible asset is impaired. Any loss due to subsequent impairment or reversal is recognized in the Consolidated Statement of Income; such impairment is determined by the excess of the carrying amount over the recoverable value.
Description of accounting policy for service concession arrangements [text block]	2.20 Concession arrangements rights Concession contracts, are those in virtue of which certain subsidiaries of Grupo Aval make a commitment with the Government for the construction or maintenance of infrastructure, for a period of time during which, said entities receive the revenue derived from the contract, either through direct payments from the Government, through tolls or other types of fees charged to the end users of the project, which, are recognised as financial assets or intangible assets. A financial asset is recognized when pursuant to the contractual conditions, the subsidiary is entitled to an unconditional contractual right of receiving cash or other financial assets from the grantor or from the Government, due to construction services or when the Government guarantees minimum income from tolls or fees charged to the users of the concession work during the term of the concession agreement. An intangible asset is recognized when the Grupo Aval subsidiary in the concession contract does not have an unconditional right to receive cash and, on the contrary, its revenue depends of the right it has for the use of the infrastructure under concession. In some cases, contracts can contain both financial and intangible assets. Concession arrangements are recognized as follows: (a) During the construction stage, all estimated income for construction services as well as the costs associated to the construction are recognized in the Consolidated Statement of Income based on the stage of completion of the work performed. In the event that there is an expected loss, this is recognized as an expense inmediately. (b) If all or part of the concession agreement is classified as a financial asset, it is recognized in accordance with the accounting policy for financial assets as set out in note 2.5. If all or part of the concession contract is classified as an intangible asset, the revenues accumulated as assets during the construction phase of the project, are recorded as intangible assets and are amortised over the term of the arrangement in a manner that reflects the pattern in which the concession asset’s economic benefits are consumed by the entity, from the moment the asset enters into service.
Description of accounting policy for impairment of non-financial assets [text block]	2.21 Impairment of non-financial assets At each reporting date, Grupo Aval reviews the carrying amounts of its non-financial assets (other than investment properties and deferred tax assets) to determine whether there is any indication of impairment. If any such indication exists, then the asset’s recoverable amount is estimated. Goodwill is tested annually for impairment. For impairment testing, assets are grouped together into the smallest group of assets that generates cash inflows from continuing use that is largely independent of the cash inflows of other assets or Cash Generating Units (CGU). Goodwill arising from a business combination is allocated to CGUs or groups of CGUs that are expected to benefit from the synergies of the combination. The ‘recoverable amount’ of an asset or CGU is the greater of its value in use and its fair value less costs to sell. ‘Value in use’ is based on the estimated future cash flows, discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset or CGU. An impairment loss is recognized if the carrying amount of an asset or CGU exceeds its recoverable amount. Grupo Aval´s corporate assets do not generate separate cash inflows and are used by more than one CGU. Corporate assets are allocated to CGUs on a reasonable and consistent basis and tested for impairment as part of the testing of the CGUs to which the corporate assets are allocated. Impairment losses are recognized in profit or loss. They are allocated first to reduce the carrying amount of any goodwill allocated to the CGU, and then to reduce the carrying amounts of the other assets in the CGU on a pro rata basis. An impairment loss of goodwill cannot be reversed. For other assets, an impairment loss is reversed only to the extent that the asset’s carrying amount does not exceed the carrying amount that would have been determined, net of depreciation or amortization, if no impairment loss had been recognized.
Description of accounting policy for employee benefits [text block]	2.22 Employee Benefits Grupo Aval´s entities provide the following benefits to employees in exchange of services rendered to the Group: a) Short-term employee benefits Pursuant to Colombian labor rules, such benefits are comprised of salaries, premiums, vacations, severance payments and payroll tax contributions to the Colombian Government designated agencies which are paid within 12 months following the end of the reporting period. Such benefits are accumulated on an accrual basis and recognized in profit or loss. b) Post-employment benefits (defined benefit plans) These are benefits that Grupo Aval pays to its employees when they retire or upon completion of their employment period, other than indemnities. These benefits include retirement pensions which are directly assumed by Grupo Aval’s entities, pending severance payments to employees belonging to the labor regime prior to Law 50 1990 and certain extra-legal benefits or benefits agreed in collective labor conventions. Post-employment benefits liabilities are determined based on the present value of estimated future payments, calculated based on actuarial assessments using the projected unit of credit method, and applying actuarial assumptions about mortality rate, increase of salaries and personnel turnover, and interest rates determined with reference to bond market returns of Colombian Government’ bonds or high-quality business liabilities in effect at the reporting date. Under the projected unit of credit method, future benefits to be paid to employees are assigned to each accounting period in which the employee renders the service. Therefore, the corresponding expense due to these benefits recognized in profit or loss of Grupo Aval includes the present service cost assigned in the actuarial calculation plus the financial cost of calculated liabilities. Changes in liabilities due to changes in actuarial assumptions are recognized in Other Comprehensive Income. Changes in actuarial liabilities due to changes in employment benefits granted to employees that have a retroactive effect are recognized as an expense in the earlier of the following dates: · When a modification of the granted employment benefits takes place, or · When provisions for restructuring costs are recognized by a subsidiary or a business of Grupo Aval. c) Other long-term employee benefits Long term benefits are different from employee short-term benefits, post-employment benefits and termination benefits. In accordance with the collective conventions and regulations of each company of Grupo Aval, such benefits are mainly related to seniority bonuses. Long-term liabilities for employee benefits are determined in the same manner as post-employment benefits described in item (b) above; the only difference is that the changes in the actuarial liability due to changes in the actuarial assumptions are recognized in profit or loss. d) Termination benefits These benefits are payments which most be made by Grupo Aval´s entities derived from their making a unilateral decision of terminating and employee´s labor contract or from and employee´s decision to accept benefits offered by an entity in exchange for terminating the employment contract. Pursuant to Colombian law, such payments correspond to compensation for dismissal or redundancy and other benefits that entities unilaterally decide to grant to their employees under such circumstances. Termination benefits are recognized as a liability and in profit or loss at the earlier of the following dates: · When Grupo Aval formally informs to the employee about its decision of dismissal; or · When provisions for restructuring costs are recognized by a subsidiary or business of Grupo Aval.
Description of accounting policy for income tax [text block]	2.23 Income taxes Income tax expense includes both current and deferred tax. Tax expense is recognized in profit or loss except for items recognized in Other Comprehensive Income or directly in equity. The current income tax is calculated based on the tax laws in force (enacted or substantively enacted) in Colombia as of the reporting date of the consolidated financial statements or, in the country where subsidiaries of Grupo Aval are located and subject to tax payment. Management of each entity of Grupo Aval periodically assesses tax return positions with respect to situations where the applicable tax regulation is subject to interpretation and establishes provisions, when appropriate, on the basis of amounts expected to be paid to tax authorities. Deferred taxes are recognized in respect of temporary differences arising between carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for tax purposes. Deferred taxes are not recognized for: temporary differences on the initial recognition of goodwill; temporary differences on the initial recognition of an asset or liability in a transaction that is not a business combination and that affects neither accounting or taxable profit or loss and temporary differences related to investments in subsidiaries to the extent that it is probable that they will not reverse in the foreseeable future. Deferred tax is measured using the tax rates that are expected to be applied to the temporary differences when they reverse, using tax rates enacted or substantively enacted at the reporting date. Deferred taxes assets are only recognized to the extent it is probable that future taxable income is expected to be available to offset temporary differences. Deferred tax liabilities arise from taxable temporary differences, except for the deferred tax liabilities on investments in subsidiaries, when the opportunity of reversal of temporary differences is controlled by Grupo Aval and it is not expected to be reversed in the near future. Generally, Grupo Aval has the ability to control the temporary differences of investments in associates. Current taxes are offset only when the entity has a legally enforceable right to offset and the entity intends either to settle on a net basis or to realize the asset and settle the liability simultaneously. Deferred taxes are offset when the entity has a legally enforceable right to offset current tax assets against current tax liabilities and when the deferred tax assets and liabilities are related to income taxes levied by the same tax authority over the same taxable entity or over different entities but these entities have an intention to settle current tax liabilities and assets on a net basis or their tax assets and liabilities will be realized simultaneously for each period in which these differences reverse. In determining the amount of current and deferred taxes, Grupo Aval considers the impact of uncertain tax exposures on current tax liabilities, including whether additional taxes and interest may be due. This assessment relies on estimates and assumptions and may involve a series of judgments about future events. New information may become available that causes Grupo Aval to change its judgment regarding the adequacy of existing tax liabilities; such changes to tax liabilities would impact tax expense in the period in which such a determination is made.
Description of accounting policy for taxes other than income tax [text block]	2.24 Non-Income taxes (levies) Levies are recognized as liabilities when Grupo Aval has accomplished the activities on which taxes must be paid, according to legislation in effect. A wealth tax was created by the Colombian Congress in late 2014, which is calculated based on the equity of companies in Colombia, determined under tax rules as of January 1, 2014, for every year from 2015 through 2017 on January 1, and is recognized on an annual basis as a liability when incurred and charged to profit or loss.
Description of accounting policy for provisions [text block]	2.25 Provisions Provisions for environmental dismantling and recovery, restructuring costs and legal claims are recognized when Grupo Aval has a present legal or constructive obligation as a result of past events, and it is probable that an outflow of economic benefits will be required to settle the obligation. Restructuring provisions include penalties due to cancelation of leases and employee dismissal payments. Provisions are measured at the present value of outflows expected to be necessary to settle the obligation, using a discount rate before taxes, reflecting the assessments of the time value of money of the current market as well as the specific risks of the obligation. The subsequent increase of the provision due to the unwinding of the discount rate is recognized as “financial expense”.
Disclosure Of Accounting Policy For Nonvoting Rights Of Preferred Shares Explanatory [Text Block]	2.26 Non-voting rights of preferred shares Preferred shares represent partial ownership and do not provide shareholders with any of the voting rights of common shares. Grupo Aval has classified as an equity instrument all the non-voting preferred shares.
Description of accounting policy for recognition of revenue [text block]	2.27 Revenues · Net interest income (i) Effective interest rate Interest income and expense are recognized in the Consolidated Statement of Income using the effective interest method. The ‘effective interest rate’ is the rate that exactly discounts estimated future cash payments or receipts through the expected life of the financial instrument to: · The gross carrying amount of the financial asset; or · The amortized cost of the financial liability. When calculating the effective interest rate for financial instruments other than credit-impaired assets, Grupo Aval estimates future cash flows considering all contractual terms of the financial instrument, but not expected credit losses. For credit-impaired financial assets, a credit-adjusted effective interest rate is calculated using estimated future cash flows including expected credit losses. The calculation of the effective interest rate includes transaction costs and fees and points paid or received that are an integral part of the effective interest rate. Transaction costs include incremental costs that are directly attributable to the acquisition or issue of a financial asset or financial liability. (ii) Amortized cost and gross carrying amount The ‘amortized cost’ of a financial asset or financial liability is the amount at which the financial asset or financial liability is measured on initial recognition minus the principal repayments, plus or minus the cumulative amortization using the effective interest method of any difference between that initial amount and the maturity amount and, for financial assets, adjusted for any expected credit loss allowance (or impairment allowance until December 31, 2017). The ‘gross carrying amount’ of a financial asset is the amortized cost of a financial asset before adjusting for any expected credit loss allowance. (iii) Calculation of interest income and expense In calculating interest income and expense, the effective interest rate is applied to the gross carrying amount of the asset (when the asset is not credit-impaired) or to the amortized cost of the liability. However, for financial assets that have become credit-impaired subsequent to initial recognition, interest income is calculated by applying the effective interest rate to the amortized cost of the financial asset. If the asset is no longer credit-impaired, then the calculation of interest income reverts to the gross basis. For financial assets that were credit-impaired on initial recognition, interest income is calculated by applying the credit-adjusted effective interest rate to the amortized cost of the asset. The calculation of interest income does not revert to a gross basis, even if the credit risk of the asset improves. For information on when financial assets are credit-impaired, see note 2(2.5) (ix). (iv) Presentation Interest income and expense presented in the Consolidated Statement of Income include: · Interest on financial assets and financial liabilities measured at amortized cost calculated on an effective interest basis, see note 2.27 (i); · Interest on debt instruments measured at FVOCI calculated on an effective interest basis see note 2.27 (i); Interest income and expense on all trading assets and liabilities are considered to be incidental to Grupo Aval’s trading operations and are presented together with all other changes in the fair value of trading assets and liabilities in “net trading income”. Interest income and expense on other financial assets and financial liabilities mandatory at FVTPL are presented in “Net trading income”. Net trading income ‘Net trading income’ comprises net gains or losses related to held for trading assets and liabilities, and includes all realized and unrealized fair value changes, interest, dividends and foreign exchange differences. Revenue from contracts with customers (other than interest income). Contract assets A contract asset is Grupo Aval’s right to consideration in exchange for goods or services that Grupo Aval has transferred to a customer when that right is conditional on something other than the passage of time (for example, invoicing or delivery of other elements of the contracts). Contract costs eligible for capitalization as incremental costs of obtaining a contract are recognized as a contract asset. Contract costs are capitalized when are incurred if Grupo Aval expects to recover those costs. Contract contracts are amortized on a systematic basis that is consistent with the transfer to the customer of the services when the related revenues are recognized. Contract costs capitalized are impaired if the customer is retired or if the asset’s carrying amount exceeds projected discounted cash flows relating to the contract. Contract liabilities Contract liabilities comprise Grupo Aval’s obligation to transfer goods or services to a customer for which Grupo Aval has received consideration from the end customer or the amount is due. Additionally, it includes deferred income relating to goods or services that will be delivered in the future, which are charged to a customer in advance but not yet due. Steps for revenue recognition Grupo Aval recognizes revenue from contracts with customers based on a five step model as set out in IFRS 15: · Step 1. Identify contract(s) with a customer: A contract is defined as an agreement between two or more parties that creates enforceable rights and obligations and sets out the criteria for every contract that must be met. Contracts can be written, oral or implied by an entity’s customary business practices. · Step 2. Identify performance obligations in the contract: A performance obligation is a promise in a contract with a customer to transfer a good or service to the customer. · Step 3. Determine the transaction price: The transaction price is the amount of consideration to which Grupo Aval expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties. · Step 4. Allocate the transaction price to the performance obligations in the contract: For a contract that has more than one performance obligation, Grupo Aval allocates the transaction price to each performance obligation in an amount that depicts the amount of consideration to which Grupo Aval expects to be entitled in exchange for satisfying each performance obligation. · Step 5. Recognize revenue when (or as) Grupo Aval satisfies a performance obligation. Grupo Aval satisfies a performance obligation and recognizes revenue over time, if one of the following criteria is met: a) Grupo Aval´s performance does not create an asset with an alternate use to Grupo Aval, and Grupo Aval has as an enforceable right to payment for performance completed to date. b) Grupo Aval´s performance creates or enhances an asset that the customer controls as the asset is created or enhanced. c) The customer simultaneously receives and consumes the benefits provided as Grupo Aval´s performs its obligation. For performance obligations where one of the above conditions are not met, revenue is recognized at the point in time at which the performance obligation is satisfied. When Grupo Aval satisfies a performance obligation by delivering the promised goods or services it creates a contract asset on the amount of consideration earned by the performance. Where the amount of consideration received from a customer exceeds the amount of revenue recognized this gives rise to a contract liability. Revenue is measured based on consideration specified in a contract with a customer and excludes amounts collected on behalf of third parties. Grupo Aval recognizes revenue when it transfers control over a good or service to a customer. Revenue is presented net of value added tax (VAT), rebates and discounts and after eliminating intra-group sales. Grupo Aval assesses its revenue arrangements to determine if it is acting as principal or agent. Revenue is recognized to the extent it is probable that the economic benefits will flow to Grupo Aval and the revenue and costs, if applicable, can be measured reliably. The following is a description of principal activities from which Grupo Aval generates revenue from contracts with customers: (i) Banking (Financial Services) Grupo Aval often enter into contracts that cover a number of different services. Such contracts might contain components within, and components outside, the scope of IFRS 15. Therefore, Grupo Aval only applies the IFRS 15 guidance where it has contracts that are all or partly outside the scope of IFRS 9. The main revenue streams earned by the banks from contracts with customers are the following: · Credit cards: Interchange fees, Annual-quarterly-monthly fees, Loyalty schemes There are contracts that create enforceable rights and obligations between the Bank and the cardholders or merchants under which the bank will provide services, sometimes in exchange for annual and other fees. The following are some of the services that might exist in a contract with a cardholder: · Issuance of loyalty points (which are options to acquire goods/services for free or at a discount in the future), usually based on the monetary volume of card transactions; · Payment processing service; · Insurance where the bank is not the insurer; · Fraud protection; and · Processing of certain transactions, such as purchases in a foreign currency and cash withdrawals. The transaction price is allocated to each performance obligation based on the relative stand-alone selling prices of the goods or services being provided to the customer. The allocation of the transaction price to each of the separate performance obligations will not necessarily be required where there is more than one performance obligation but the performance obligations are all satisfied at the same time or evenly over the period. Performance obligations are fulfilled over time, taking into account that customers receive benefits as time goes on. Because the entity's efforts or resources are expended evenly throughout the performance period, income is recognized on a linear basis during the period defined under the credit card conditions. The costs of plastic or security elements are capitalized as contract signing costs. In connection with the credit and debit card purchase commissions of Grupo Aval, customers receive benefits every time they make purchases. In this context, income is recognized periodically (daily or monthly) on the basis of the amounts traded. Income that would be deferred by the valuation of the points granted to the cardholders will be extracted from the total amount of commissions recorded periodically. See section (vi) Customer Loyalty Program below. · Commissions : Banks receive insurance commissions for introducing new clients to third party insurers, where the bank does not underwrite the insurance policy itself. These commissions are usually paid periodically (for example, monthly) to banks based on the volume of new policies (and/or renewal of existing policies) originating from clients introduced by the bank. The transaction price might include an element of consideration that is variable or contingent on the outcome of future events, such as policy cancellations, which is estimated and included in the transaction price based on the most likely amount and it is included in the transaction price only when it is highly probable that the resolution of the uncertainty will not result in a significant reversal of revenue. Performance obligations are fulfilled over time, taking into account that customers (insurers) receive benefits as time goes on. Where the commission calculation is made on a monthly basis or in a shorter period, the total amount of the commission is recognized in the results when its determination is made. If the settlement of commissions is defined in periods longer than a monthly basis, the expected income to recognize revenues is estimated as time goes on. Loan commitment fees are within the scope of IFRS 15 where it is unlikely that a specific lending arrangement will be entered into and the loan commitment is not measured at FVTPL. Loan syndication fees received by a bank that arranges a loan and retains no part of the loan package for itself (or retains a part at the same Effective Interest Rate “EIR” for comparable risk as other participants) are within the scope of IFRS 15. Income from performance obligations to provide such services, which are met at a point in time, are recognized when the particular event defined in the contracts occurs (e.g., approval of the syndicated loan). The obligations met over time are recognized during the period of the commitment; if they are received in advance, they are deferred for their periodic amortization; or if they are received upon expiration, they are estimated periodically. · Savings and current accounts: Account and transaction fees Savings and current accounts contracts usually allow customers to access a variety of services, which include processing of wire transfers, use of ATMs for cash withdrawals, the issuance of debit cards, and provision of account statements; sometimes, they might also include other benefits. Fees are charged on a periodically basis and give the customer access to banking services and additional benefits. The performance obligations are fulfilled over time, taking into account that customers receive benefits as time goes on. As a result, the banks recognize the fees from providing services in the accounting period in which the services are rendered. · Investment banking: Underwriting fees and Advisory fees Advisory contracts with customers are not standardized. These contracts might be with different promises made to the customer, and they often include variable consideration including contingent fees that are only payable on meeting agreed milestones. Income from performance obligations to provide such services, which are met at a point in time, are recognized when the particular event defined in the contracts occurs. The obligations met over time are recognized considering the method of milestones achieved (as there is usually only one milestone that considers the delivery of results, income is recognized at a single moment when the final delivery is made.) (ii) Asset management Asset management revenues consist of base management fees, advisory fees, incentive distributions and performance-based incentive fees and profit-sharing arrangements which arise from the rendering of services. Revenues from base management fees, advisory fees incentive distributions, performance-based incentive fees and profit-sharing arrangements are recorded based on the amount that would be due under the formulas established by the contracts. If the amount that the asset manager expects to be entitled to is variable, the variable consideration included in the transaction price is limited to the amount for which it is ‘highly probable that a significant reversal of the amount of cumulative revenue recognized will not occur when the uncertainty is resolved. In making this assessment, Grupo Aval considers both the likelihood and the magnitude of the revenue reversal. Factors that could increase the likelihood or the magnitude of a revenue reversal include, but are not limited to, (i) the amount of consideration is highly susceptible to factors outside the entity’s influence, (ii) the uncertainty about the amount of consideration is not expected to be resolved for a long period of time, and (iii) the contract has a large number and broad range of possible consideration amounts. Management fees are often based on net assets under management, while performance fees are usually based on profits generated from the underlying investments held by the funds subject to certain thresholds. The contractual measurement period for performance fees for traditional fund managers is often the end of the month, the quarter or the year, and in some rare cases longer. In some cases, the performance fees will be constrained until this contractual measurement period is completed. This means that the revenue will generally not be recognized in full in the interim periods. However, management will need to determine if there is a portion (a minimum amount) of the variable consideration that should be recognized prior to the end of the contractual measurement period. The full amount of the fee will likely be recognized as of the end of the contractual measurement period when the asset manager becomes entitled to an amount that is fixed. In certain cases, the full amount of the fee will be recognized upon a redemption because the amount becomes fixed at that time and is no longer subject to reversal. (iii) Construction and operation services (Concessions) In Concession agreements, Grupo Aval determines that its performance obligations (construction, operation and maintenance) are satisfied over time and measure its progress toward completion to determine the timing of revenue recognition using a method that depicts the transfer of the goods or services to the customer. Grupo Aval considers the nature of the product or services provided and the terms of the contract, such as termination rights, the rights to demand or retain payments, and the legal title to work in process in determining the best input or output method for measuring progress toward satisfaction of a performance obligation. Grupo Aval applies a single method to measure progress for each performance obligation within a contract. The method can be either an input method (cost incurred, labor hours) or output method (units produced, milestones reached). Estimations of revenues, costs or extent of progress toward completion are revised if circumstances change. Any resulting increases or decreases in estimated revenues or costs are reflected in profit or loss in the period in which the circumstances that give rise to the revision become known by management. (iv) Power and utilities Contracts between a customer and a public utility company establish the rates and terms of servicefor the purchase, delivery, and sale of electricity or gas. Grupo Aval determined that, in relation to this, its obligation is represented in a single performance obligation which is to sell electricity or gas, is satisfied over time (over the term of the agreement) thorugh a series of distinct goods or services that are substantially the same and that have the same pattern of transfer to the customer. Some contracts include multiple deliverables, such as the installation of fixtures or repairs, which are accounted as a separate performance obligation. The transaction price is allocated to each performance obligation based on the stand-alone selling prices (regulated rates). If contracts include the installation of fixtures, the associated revenue is recognized at the point in time when the goods are installed, the ownership has been transferred and the customer has accepted the goods. (v) Logistic activities The transport and logistics companies offer multiple products or services to their customers as part of a single agreement. Separate performance obligations are identified in an agreement based on the terms of the contract and Grupo Aval's usual business practices. Revenue recognition criteria generally applies separately to each performance obligation. In certain circumstances, it may be necessary to separate a transaction into identifiable components to reflect the content of the transaction. It may be necessary to group two or more transactions when they are linked in such a way that the commercial effect cannot be understood without reference to the series of transactions as a whole. The transaction price is assigned to performance obligations separately in a contract based on the relative independent selling price of each separate performance obligation. (vi) Customer loyalty program Financial entities and hotels of Grupo Aval manage loyalty programs in which the customers accumulate points for their purchases, entitling them to redeem such points for prizes in accordance with the policies and the prize plan in force as of the redemption date. Reward points are recognized as an identifiable component separate from income for the service rendered, at their fair value. Income from loyalty programs is deferred and recognized in profit or loss until the entity has fulfilled its obligations to supply the products under the terms of the program or when it is no longer probable that the points under the program will be redeemed. Grupo Aval is the principal in a customer loyalty program if it obtains control of the goods or services of another party in advance of transferring control of those goods or services to a customer. Grupo Aval is an agent if its performance obligation is to arrange for another party to provide the goods or services. (vii) Agricultural produce Grupo Aval sells agricultural products. Sales are recognized when control of the products has been transferred, being when the products are delivered to the wholesaler, the wholesaler has full discretion over the channel and price to sell the products, and there is no unfulfilled obligation. Delivery occurs when the products have been shipped to the specific location, the risks of obsolescence and loss have been transferred to the wholesaler, and either the wholesaler has accepted the products in accordance with the sales contract, the acceptance provisions have lapsed, or Grupo Aval has objective evidence that all criteria for acceptance have been satisfied. Revenue from these sales is recognized based on the price specified in the contract, net of discounts. Accumulated experience is used to estimate and provide for the discounts, using the most likely amount, and revenue is only recognized to the extent that it is highly probable that a significant reversal will not occur. A receivable is recognized when the goods are delivered as this is the point in time that the consideration is unconditional because only the passage of time is required before the payment is due. (viii) Hotel Services Revenue is derived from the following sources: i) Management fees: earned from hotels managed by Grupo Aval, usually under long-term contracts with the hotel owner. Management fees include a base fee, generally a percentage of hotel revenue, which is recognized when earned in accordance with the terms of the contract and an incentive fee, generally based on the hotel’s profitability or cash flows and recognized when the related performance criteria are met under the terms of the contract. ii) Owned and leased: primarily derived from hotel operations, including the guests accommodation and sales of food and beverage from owned and leased hotels operated under Grupo Aval brand names. Revenue is recognized at the point when the goods are sold or services are rendered. (ix) Financing components Grupo Aval adjusts transaction prices for the time value of money for contracts where the period between the transfer of the promised goods or services to the customer and payment by the customer exceeds one year.
Description of accounting policy for earnings per share [text block]	2.28 Earnings per share Earning per share is calculated as net income for the period attributable to Grupo Aval’s shareholders divided by the weighted average number of common and preferred shares outstanding during the period. Diluted earnings per share are determined in the same way, on the basis of net income, but the weighted average number of shares outstanding is adjusted to account for the potential dilutive effect of stock options. Grupo Aval does not have financial instruments with potential dilutive effects. As a consequence, only basic earnings per share are disclosed in these financial statements.
Description of accounting policy for segment reporting [text block]	2.29 Operating segments An operating segment is a component of an entity which: a) Engages in business activities from which it can earn revenue and incur expenses (including revenue and expenses from transactions with other components of the same entity); b) Operating profit or losses are regularly reviewed by the chief operating decision maker, who decides on the resources allocation to the segment and assesses its performance; and c) Discrete financial information is available. Management evaluates regularly the performance for each segment; Grupo Aval discloses information separately for each identified operating segment, meeting any of the following quantitative thresholds: a) The segment´s reported revenue from the ordinary activities, including revenue from external customers as well as revenue from intersegment transfers, is equal or greater than 10% of the revenue of combined ordinary activities, internal and external, of all operating segments. b) The amount of the segment´s reported net income is, in absolute terms, equal or greater than 10% of the amount greater of: (i) the combined reported net income of all the segments not reporting a loss; and (ii) the reported combined loss of all segments of the operations with incurred losses. c) The segment´s assets are equal to or greater than 10 percent of the combined assets of all segments of the operation. The information regarding other activities of the business of operating segments that do not have to be reported is combined and disclosed within the category of “Others”
Disclosure of expected impact of initial application of new standards or interpretations [text block]	2.30 New and Amended IFRS A number of new standards and amendments to standards are effective for annual periods beginning after 1 January 2020 and earlier application is permitted; however, Grupo Aval has not early adopted them in preparing these consolidated financial statements. Effective for Annual Periods New or Amended Standard Title of the Standard Beginning on or After Forthcoming requirements. Amendments to References to Conceptual Framework in IFRS Standards Conceptual Framework January 1, 2020 Definition of a Business Amendment to IFRS 3 January 1, 2020 IFRS 17 Insurance contracts January 1, 2021 Interpretation IFRIC 23 Uncertainty over Income Tax Treatments January 1, 2020 Grupo Aval has preliminarily assessed the impacts of the adoption of the new or amended standards detailed above, concluding that these are not expected to have a significant impact on Grupo Aval’s consolidated financial statements.

REPORTING ENTITY (Tables)

REPORTING ENTITY (Tables)	12 Months Ended
	Dec. 31, 2019
Banco de Bogota S.A.
Disclosure of subsidiaries [line items]
Disclosure of information about consolidated structured entities [text block]	The following table presents details of Banco de Bogotá’s most significant subsidiaries which are indirectly consolidated by Grupo Aval as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Main local direct subsidiaries Almaviva S.A. Logistics services. Bogotá, Colombia 95.81 % 65.85 % Fiduciaria Bogotá S.A. Management of trust funds. Bogotá, Colombia 94.99 % 65.29 % Porvenir S.A. Management of pension and severance funds. Bogotá, Colombia 100 % 75.67 % Main international direct subsidiaries Banco de Bogotá Panamá S.A. Commercial banking services. Panamá, Republic of Panamá 100 % 68.74 % Leasing Bogotá Panamá S.A. Holding company of BAC Credomatic Inc. Panamá, Republic of Panamá 100 % 68.74 % Main indirect subsidiaries BAC Credomatic Inc. Holding company in charge of managing the banking and related subsidiaries in Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panamá, among others. (Subsidiary of Leasing Bogotá Panamá S.A.). Panamá, Republic of Panamá 100 % 68.74 %
Banco de Occidente S.A.
Disclosure of subsidiaries [line items]
Disclosure of information about consolidated structured entities [text block]	The following table presents the details of Banco de Occidente’s most significant subsidiaries, which are indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Banco de Occidente (Panamá). S.A. Commercial banking services. Panamá, Republic of Panamá 95.00 % 68.66 % Fiduciaria de Occidente S.A. Management of trust funds. Bogotá, Colombia 99.99 % 70.78 % Occidental Bank Barbados Ltd. Commercial banking services. Barbados 100 % 72.27 %
Banco Popular S.A.
Disclosure of subsidiaries [line items]
Disclosure of information about consolidated structured entities [text block]	The following table presents the details of Banco Popular’s most significant subsidiaries which are indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Alpopular S.A. Conservation and custody of documents; transportation of products at national and international levels. Bogotá, Colombia 71.10 % 66.65 % Fiduciaria Popular S.A. Management of trust funds. Bogotá, Colombia 94.85 % 88.91 %
Banco Commercial Av Villas S A
Disclosure of subsidiaries [line items]
Disclosure of information about consolidated structured entities [text block]	The following table presents the details of Banco AV Villas’ most significant subsidiary which is indirectly consolidated by Grupo Aval, as of December 31, 2019: Total Total voting ownership rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval A Toda Hora S.A. ATH ATM network services and maintenance and software development Bogotá, Colombia 100 % 78.90 %
Corporacion Financiera Colombiana S.A.
Disclosure of subsidiaries [line items]
Disclosure of information about consolidated structured entities [text block]	The following table presents the details of Corficolombiana´s most significant subsidiaries which are indirectly consolidated by Grupo Aval, at December 31, 2019: Total Total voting ownership Main Indirect Subsidiaries rights held by interest held Subsidiary Core business Location Grupo Aval by Grupo Aval Promigas S.A. E.S.P. Transportation and distribution of natural gas. Barranquilla, Colombia 50.88 % 19.65 % Estudios y Proyectos del Sol S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % Colombiana de Licitaciones y Concesiones S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % Proyectos y Desarrollos Viales del Pacífico S.A.S. Infrastructure projects. Bogotá, Colombia 100 % 38.63 % CFC Gas Holding S.A.S. Investment Company Bogotá, Colombia 100 % 38.63 % Concesionaria Vial Del Pacifico S.A.S. Infrastructure projects. Sabaneta Antioquia 89.90 % 34.73 %

BASIS OF PREPARATION OF THE C_3

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of voluntary change in accounting policy [line items]
Schedule of Change in accounting policies	Impact of Reference the adoption IFRS 15 Revenue from contracts with customers B Ps. 391,281 IFRS 9 Financial Instruments C (784,399) Net impact at January 1, 2018 Ps. (393,118)
Schedule of financial assets and financial liabilities measurement category under IFRS 9	Loss allowance as of December 31, 2017 under IAS 39 (5,875,018) Additional impairment recognized as of January 1, 2018 on: Loans (1,163,009) Credit Commitments (16,217) Other accounts receivable (18,907) Impact on equity method investees due to impairment of other accounts receivable from associates (3,691) Debt securities measured at amortized cost (672) Other financial assets (58) Loss allowance as of January 1, 2018 under IFRS 9 (7,077,572)
Schedule of estimated on a straight-line basis during the estimated useful life of the asset	Depreciation is estimated on a straight-line basis during the estimated useful life of the asset. The annual depreciation rates for each type of assets are: Asset Useful Life Own use buildings According to appraisals Equipment, furniture and accessories From 3 to 10 years Machinery and equipment From 5 to 25 years Computer equipment From 3 to 12 years Vehicles From 5 to 10 years Bearer plants From 25 to 35 years
Schedule of application of IFRS 9’s impairment requirements recognition of additional allowance	Effective for Annual Periods New or Amended Standard Title of the Standard Beginning on or After Forthcoming requirements. Amendments to References to Conceptual Framework in IFRS Standards Conceptual Framework January 1, 2020 Definition of a Business Amendment to IFRS 3 January 1, 2020 IFRS 17 Insurance contracts January 1, 2021 Interpretation IFRIC 23 Uncertainty over Income Tax Treatments January 1, 2020
Schedule of reconciliation of loss allowance impairment impact on retain earnings	Impairment loss due to credit risk as of December 31, 2017 under IAS 39 (71,708) Additional impairment recognized as of January 1, 2018 on: Debt securities measured at FVOCI (56,198) Loss allowance as of January 1, 2018 under IFRS 9 (127,906)
IFRS 16
Disclosure of voluntary change in accounting policy [line items]
Schedule of adjustments recognized on adoption of IFRS	Recognition of right-of-use January 1, 2019 Right of use assets Ps. 2,217,380 Deferred tax liabilities (636,017) Total 1,581,363 Retained earnings Ps. (40,272) Retained earnings related to right-of-use net deferred tax 13,290 Total Ps. (26,982) Net effect Ps. Recognition of financial liabilities January 1, 2019 Financial liabilities - Lease liabilities Ps. 2,225,545 Provisions for right-of-use dismantling 32,107 Deferred tax assets (649,307) Net effect Ps. 1,608,345
Schedule of reconciliation of operating lease liability as per IAS 17 and IFRS 16	January 1, 2019 Operating lease commitments at December 31, 2018 as disclosed under IAS 17 in the Group’s consolidated financial statements Ps. Discounted using the incremental borrowing rate Add/(less): adjustments as a result of a different treatment of extension and termination options 1,275,475 Add/(less): adjustments relating to changes in the index or rate affecting variable payments (Less): Recognition exemption for leases of low-value assets (35,987) (less): Recognition exemption for leases with less than 12 months of lease term at transition Lease liabilities recognised at 1 January 2019 Ps. 2,225,545
IFRS 15
Disclosure of voluntary change in accounting policy [line items]
Schedule of adjustments recognized on adoption of IFRS	Impact of the adoption of IFRS 15 Operation and construction services (Concessions) as of January 1, 2018 Commissions related to funding (see note 16) Ps. 12,744 Contract liability (see note 24) (531,804) Financial assets (see note 16) 450,878 Intangible assets (see note 16) 619,949 Deferred tax effect (181,680) Ps. 370,087 Customer loyalty programs Customer loyalty programs 32,232 Deferred tax effect (11,038) Ps. 21,194 Net impact retained earnings at January 1, 2018 Ps. 391,281
IFRS 9
Disclosure of voluntary change in accounting policy [line items]
Schedule of adjustments recognized on adoption of IFRS	The following table summarizes the impact, net of tax, of our transition to IFRS 9 on the opening balance of reserves and retained earnings and Other Comprehensive Income (“OCI”) as of January 1, 2018 (for a description of the transition method, see (iv) below). Impact of adopting IFRS 9 on opening balance of: Reserves and Total retained earnings OCI equity Recognition of changes in measurement due in classification under IFRS 9 Ps. — Ps. 71,229 Ps. 71,229 Recognition of expected credit losses under IFRS 9 (1,255,060) 56,198 (1,198,863) Impact on equity method due to impairment of other accounts receivable from associates — (3,691) (3,691) Deferred tax effect 366,650 (19,725) 346,926 Impact as of January 1, 2018 Ps. (888,411) Ps. 104,011 Ps. (784,399)

RISK MANAGEMENT (Tables)

RISK MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of credit risk exposure [text block]	Account Assets December 31, 2019 December 31, 2018 Cash and cash equivalents (**) Ps. 23,464,691 Ps. 21,955,901 Debt securities held for trading 4,673,113 3,762,978 Debt securities mandatorily FVTPL 10,102 31,256 Debt securities FVOCI 21,608,992 18,935,757 Debt securities at amortized cost 3,053,862 2,972,616 Derivatives instruments 917,434 768,686 Hedging derivatives 166,598 30,138 Loans Commercial 101,655,660 102,408,977 Consumer 59,840,451 55,455,064 Mortgage 20,221,683 18,592,103 Microcredit 410,320 425,697 Other accounts receivable FVTPL 2,706,030 2,488,414 Other accounts receivable at amortized cost 9,282,734 7,069,120 Total financial assets with credit risk Ps. 248,011,670 Ps. 234,896,707 Financial instruments with credit risk outside of the statement of financial position at its nominal value Financial guarantees and letters of credit 3,341,641 3,446,601 Credit commitments 28,812,963 27,479,080 Total exposure to credit risk outside of the statement of financial position Ps. 32,154,604 Ps. 30,925,681 Total maximum exposure to credit risk Ps. 280,166,274 Ps. 265,822,388 (**) Not including funds in the entity’s custody (cash, tellers, vaults), because there is no credit risk regarding Grupo Aval entities.
Disclosure of financial assets [text block]	December 31, 2019 Balance in Statement Leasing presentation Balance according to Portfolio segment of financial position adjustment disclosure Commercial Ps. 101,655,660 Ps. (10,348,941) Ps. 91,306,719 Consumer 59,840,451 (252,522) 59,587,929 Residential mortgage 20,221,683 (1,560,294) 18,661,389 Microcredit 410,320 — 410,320 Financial leasing — 12,161,757 12,161,757 Total portfolio Ps. 182,128,114 Ps. — Ps. 182,128,114 December 31, 2018 Balance in Statement Leasing presentation Balance according to Portfolio segment of financial position adjustment disclosure Commercial Ps. 102,408,977 Ps. (9,858,952) Ps. 92,550,025 Consumer 55,455,064 (254,483) 55,200,581 Residential mortgage 18,592,103 (1,312,741) 17,279,362 Microcredit 425,697 — 425,697 Financial leasing — 11,426,176 11,426,176 Total portfolio Ps. 176,881,841 Ps. — Ps. 176,881,841
Description of detailed information about investments subject to value at risk [Text Block]	The maximum and minimum total foreign currency position and the spot foreign currency position are determined according to each entity’s regulatory capital. The regulatory capital that is used in the calculations corresponds to the regulatory capital of the last business day of two-months ago. The exchange rate used in the calculation is the average of the exchange rate set by the Superintendency of Finance at the end of the previous month. A substantial amount of Grupo Aval’s foreign currency assets and liabilities are in U.S. dollars. Details on the assets and liabilities in foreign currency held by Grupo Aval at December 31, 2019 and 2018 are shown below: December 31,2019 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 5,003 1,266 20,545,934 Investments in debt securities at fair value through profit or loss 168 17 606,107 Investments in debt securities at fair value through OCI 2,634 705 10,942,222 Investments in debt securities at amortized cost 7 - 23,043 Loan portfolio financial assets at amortized cost 16,078 5,006 69,096,428 Derivative financial assets held for trading 257 - 843,700 Derivative financial assets held for hedging 51 - 166,598 Trade receivable 238 168 1,329,979 Total financial assets 24,436 7,162 103,554,011 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 274 - 897,138 Derivative financial liabilities held for hedging 28 - 90,726 Customer deposits 16,772 5,828 74,064,051 Financial obligations 8,428 772 30,148,583 Accounts payable 407 - 1,334,317 Total financial liabilities 25,909 6,600 106,534,815 Net financial asset (liability) position (1,473) 562 (2,980,804) December 31,2018 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 4,859 1,075 19,297,896 Investments in debt securities held for trading 121 15 441,801 Investments in securities available-for-sale 2,201 589 9,068,739 Investments in debt securities held-to-maturity 10 — 32,321 Loan portfolio financial assets at amortized cost 15,923 4,706 67,023,090 Derivative financial assets held for trading 222 1 725,433 Derivative financial assets held for hedging 9 — 30,138 Trade receivable 246 176 1,370,820 Total financial assets 23,591 6,562 97,990,238 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 236 3 776,162 Derivative financial liabilities held for hedging 60 — 195,539 Customer deposits 14,914 5,077 64,971,825 Financial obligations 9,457 666 32,899,230 Accounts payable 442 — 1,437,447 Total financial liabilities 25,109 5,746 100,280,203 Net financial asset (liability) position (1,518) 816 (2,289,965)
Disclosure of internal credit grades [text block]	As of December 31, 2019, and 2018, the following is a summary of the Commercial December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 82,094,981 Ps. 310,595 Ps. - Ps. 82,405,576 7.5% - 15% 855,476 368,086 - 1,223,562 15% - 22.5% 44,548 178,046 - 222,594 22.5% - 30% 45,596 86,323 - 131,919 30% - 45% 30,026 928,098 - 958,124 45% - 60% 1,437 471,156 - 472,593 60% - 90% 1,495 47,979 - 49,474 > 90% 1,573 1,976 5,839,328 5,842,877 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 83,210,772 Ps. 243,089 Ps. - Ps. 83,453,861 7.5% - 15% 865,784 172,278 - 1,038,062 15% - 22.5% 52,906 180,853 - 233,759 22.5% - 30% 47,739 130,769 - 178,508 30% - 45% 20,889 665,253 - 686,142 45% - 60% 2,448 234,853 - 237,301 60% - 90% 1,117 27,679 67,162 95,958 > 90% 16,814 8,838 6,600,782 6,626,434 TOTAL Ps. Ps. Ps. Ps. Consumer December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 45,471,761 Ps. 541,845 Ps. - Ps. 46,013,606 7.5% - 15% 6,436,998 311,027 - 6,748,025 15% - 22.5% 469,685 317,644 - 787,329 22.5% - 30% 138,510 334,167 - 472,677 30% - 45% 378,371 649,855 - 1,028,226 45% - 60% 3,457 603,034 146,626 753,117 60% - 90% 422,442 1,065,686 210,585 1,698,713 > 90% 104 70,290 2,015,842 2,086,236 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 42,839,139 Ps. 555,398 Ps. - Ps. 43,394,537 7.5% - 15% 4,692,330 452,823 - 5,145,153 15% - 22.5% 815,373 456,525 - 1,271,898 22.5% - 30% 179,065 392,878 - 571,943 30% - 45% 91,846 946,658 61,075 1,099,579 45% - 60% 4,378 521,213 91,089 616,680 60% - 90% 2,587 964,704 177,569 1,144,860 > 90% 455 76,265 1,879,211 1,955,931 TOTAL Ps. Ps. Ps. Ps. Mortgage December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 16,666,766 Ps. 155,866 Ps. - Ps. 16,822,632 7.5% - 15% 116,157 183,028 - 299,185 15% - 22.5% 16,035 234,666 - 250,701 22.5% - 30% 4,187 162,339 - 166,526 30% - 45% 8,606 254,878 - 263,484 45% - 60% 171 184,340 - 184,511 60% - 90% 65 120,355 - 120,420 > 90% 13 3,687 550,230 553,930 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 15,521,416 Ps. 202,634 Ps. - Ps. 15,724,050 7.5% - 15% 32,076 201,068 - 233,144 15% - 22.5% 6,950 193,391 - 200,341 22.5% - 30% 1,941 143,322 - 145,263 30% - 45% 1,710 272,141 - 273,851 45% - 60% 121 175,454 - 175,575 60% - 90% 150 138,147 - 138,297 > 90% 1,694 9,584 377,563 388,841 TOTAL Ps. Ps. Ps. Ps. Microcredit December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 123,733 Ps. 17 Ps. - Ps. 123,750 7.5% - 15% 142,921 34 - 142,955 15% - 22.5% 29,829 - - 29,829 22.5% - 30% 4,174 704 - 4,878 30% - 45% 20,263 570 - 20,833 45% - 60% 8,666 941 - 9,607 60% - 90% 336 22,535 - 22,871 > 90% - - 55,597 55,597 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 212,882 Ps. 23 Ps. - Ps. 212,905 7.5% - 15% 68,503 65 - 68,568 15% - 22.5% 35,880 139 - 36,019 22.5% - 30% 10 828 - 838 30% - 45% 19,413 947 - 20,360 45% - 60% 7,737 911 - 8,648 60% - 90% 297 22,447 - 22,744 > 90% - 14 55,601 55,615 TOTAL Ps. Ps. Ps. Ps. Financial Leasing December 31, 2019 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 10,516,783 Ps. 97,462 Ps. - Ps. 10,614,245 7.5% - 15% 149,809 82,300 - 232,109 15% - 22.5% 1,177 51,329 - 52,506 22.5% - 30% 16 31,619 - 31,635 30% - 45% 297 115,423 - 115,720 45% - 60% 72 62,957 - 63,029 60% - 90% 152 4,062 - 4,214 > 90% - 1,888 1,046,411 1,048,299 TOTAL Ps. Ps. Ps. Ps. December 31, 2018 Total Exposure PD Range Stage 1 Stage 2 Stage 3 Total 0%- 7.5% Ps. 9,977,306 Ps. 55,600 Ps. - Ps. 10,032,906 7.5% - 15% 135,444 51,838 - 187,282 15% - 22.5% 4,802 32,186 - 36,988 22.5% - 30% 10,000 14,297 - 24,297 30% - 45% 1,446 137,667 - 139,113 45% - 60% 2,590 30,542 - 33,132 60% - 90% 459 7,634 1,413 9,506 > 90% 323 182 962,447 962,952 TOTAL Ps. Ps. Ps. Ps.
Disclosure of Detailed information on Credit Worthiness [Text Block]	December 31, 2019 December 31, 2018 Investment grade Ps. 15,110,595 Ps. 13,988,666 Central bank 4,755,515 3,794,411 Financial entities 10,353,061 10,194,255 Others 2,019 — Speculative grade 7,904,760 7,707,990 Central bank 7,714,111 7,264,128 Financial entities 190,649 443,862 Without grade or not available 449,336 259,245 Central bank — 2,338 Financial entities 333,864 256,907 Others 115,472 — Cash and cash equivalent with third parties Ps. 23,464,691 Ps. 21,955,901 Cash held by entity (**) 6,652,545 6,445,382 Total Ps. 30,117,236 Ps. 28,401,283 (**) Cash held by each Grupo Aval’s bank in custody in vaults, ATMs and cash.
Disclosure Of Other Receivables [Table Text block]	December 31, 2019 Stage 1 Stage 2 Stage 3 Simplified Approach Total Other receivables using general approach Other accounts receivables and contract assets for corporate customers Ps. 4,719,510 Ps. — Ps. — Ps. — Ps. 4,719,510 Other accounts receivables related to gas, energy services, contributions and others 830,995 132,474 113,503 — 1,076,972 Other receivables using simplified approach Other accounts receivables from individual customers — — — 3,486,252 3,486,252 Total other receivables Ps. 5,550,505 Ps. 132,474 Ps. 113,503 Ps. 3,486,252 Ps. 9,282,734 December 31, 2018 Stage 1 Stage 2 Stage 3 Simplified Approach Total Other receivables using general approach Other accounts receivables and contract assets for corporate customers Ps. 2,971,500 Ps. — Ps. — Ps. — Ps. 2,971,500 Other accounts receivables related to gas, energy services, contributions and others 395,849 138,082 175,847 — 709,778 Other receivables using simplified approach Other accounts receivables from individual customers — — — 3,387,842 3,387,842 Total other receivables Ps. 3,367,349 Ps. 138,082 Ps. 175,847 Ps. 3,387,842 Ps. 7,069,120
Disclosure Of Segmentation Of Accounts Receivable [Table Text Block]	December 31, 2019 Stage 1 Stage 2 Stage 3 Total Segmentation Contributions Ps. 99,852 Ps. — Ps. — Ps. 99,852 Gas 459,012 128,455 46,166 633,633 Energy 62,662 4,019 67,337 134,018 Other accounts receivable 209,469 — — 209,469 Total segmentation Ps. 830,995 Ps. 132,474 Ps. 113,503 Ps. 1,076,972 December 31, 2018 Stage 1 Stage 2 Stage 3 Total Segmentation Contributions Ps. 71,903 Ps. — Ps. — Ps. 71,903 Gas 232,445 134,519 77,693 444,657 Energy 37,455 3,563 98,154 139,172 Other accounts receivable 54,046 — — 54,046 Total segmentation Ps. 395,849 Ps. 138,082 Ps. 175,847 Ps. 709,778
Disclosure Of Exposure To Credit Risk And ECLs For Other Accounts Receivables And Contract Assets For Corporate Customers [Table Text Block]	Weighted- Gross average loss carrying Loss Credit- December 31, 2019 rate amount allowance impaired 0–30 days past due 1.05 % 2,275,266 23,892 — 31–60 days past due 1.70 % 810,364 13,788 — 61–90 days past due 11.05 % 72,920 8,061 — More than 90 days past due 65.50 % 327,702 214,660 327,702 Ps. 3,486,252 Ps. 260,401 Weighted- Gross average loss carrying Loss Credit- December 31, 2018 rate amount allowance impaired 0–30 days past due 1.15 % 2,846,086 32,622 — 31–60 days past due 6.70 % 111,636 7,485 — 61–90 days past due 9.39 % 31,625 2,970 — More than 90 days past due 47.32 % 398,495 188,583 398,495 Ps. 3,387,842 Ps. 231,660
Disclosure of assets and liabilities exposed to trading risk [Text Block]	Total Central counterparties Notional Fair Notional Fair amount value amount value 2019 Derivative assets 38,957,370 917,434 4,720,381 — Derivative liabilities 40,549,648 962,438 5,315,421 52 2018 Derivative assets 34,950,958 768,686 5,997,311 — Derivative liabilities 31,237,110 811,305 1,977,284 32 Hedging derivatives Total Central counterparties Notional Fair Notional Fair amount value amount value 2019 Derivative assets 7,322,445 166,598 3,252,561 — Derivative liabilities 6,211,399 94,298 3,318,104 — 2018 Derivative assets 2,493,849 30,138 1,280,402 — Derivative liabilities 8,722,602 195,539 4,601,646 —
Disclosure of Loans and Advances by Range of Loan to Value Ratio [Table Text Block]	December 31, 2019 December 31, 2018 LTV ratio Less than 50% Ps. 7,030,135 Ps. 6,414,097 51 – 70% 7,050,550 6,678,883 71 – 90% 5,189,800 4,890,501 91 – 100% 731,266 426,810 More than 100% 219,932 181,812 Total (*) Ps. 20,221,683 Ps. 18,592,103 (*) As of December 31, 2019 mortgage portfolio is made up for mortgage Ps. 18,661,389 and financial leases Ps.1,560,294. As of December 31, 2018 mortgage portfolio is made up of mortgages of Ps.17,279,362 and financial leases of Ps. 1,312,741. Credit-impaired mortgage loans December 31, 2019 December 31, 2018 LTV ratio Less than 50% Ps. 136,197 Ps. 99,462 51 – 70% 197,183 146,568 More than 70% 264,998 177,821 Total Ps. 598,378 Ps. 423,851
Disclosure of Detailed Information on Credit Portfolio [Text Block]	Finance December 31, 2019 Commercial Consumer Mortgages Microcredit Leases (1) Total Unsecured credits Ps. Ps. Ps. 5,936 Ps. Ps. 54,217 Ps. Loans secured by other banks 321,672 6,082 — — — 327,754 Collateralized credits: Mortgages 713,912 80,308 2,335 18,854 19,393,695 Other real estate 1,430,605 3,495 422 118,256 18,290,852 Investments in equity instruments 262,663 1,180 — — — 263,843 Deposits in cash or cash equivalents 1,251,884 154,016 — — — 1,405,900 Leased machineries and vehicles — — — — 10,051,776 Fiduciary agreements, standby letters and guarantee funds 10,063,264 42,865 72,711 92,874 123,494 10,395,208 Pledged income 4,255,779 703 — — 5,728 4,262,210 Pledges 4,537,778 5,584,600 862 565 4,468 10,128,273 Other assets 2,893,890 52,060 99 22,644 1,784,964 4,753,657 Total gross loan portfolio Ps. Ps. Ps. Ps. Ps. Ps. Finance December 31, 2018 Commercial Consumer Mortgages Microcredit Leases (1) Total Unsecured credits Ps. 49,721,150 Ps. Ps. 3,572 Ps. Ps. 44,221 Ps. 97,363,628 Loans secured by other banks 362,128 7,378 — — 6,102 375,608 Collateralized credits: Mortgages 506,687 68,191 4,040 4,644 17,784,007 Other real estate 15,943,414 1,428,950 4,432 542 116,884 17,494,222 Investments in equity instruments 502,408 553 — — — 502,961 Deposits in cash or cash equivalents 1,147,457 156,229 — — — 1,303,686 Leased machineries and vehicles — — — — 9,221,950 9,221,950 Fiduciary agreements, standby letters and guarantee funds 9,316,479 38,516 70,174 97,946 361,515 9,884,630 Pledged income 3,262,967 303 — — 10,397 3,273,667 Pledges 3,316,543 5,773,201 477 668 6,379 9,097,268 Other assets 8,470,792 422,093 262 32,983 1,654,084 10,580,214 Total gross loan portfolio Ps. 92,550,025 Ps. Ps. Ps. Ps. Ps. 176,881,841 (1) See Note 4.1.1 As of December 31, 2019, and 2018, the following chart sets out the carrying amount and the value of identifiable collateral (mainly commercial property) for commercial loans held by Grupo Aval at a consolidated level: December 31, 2019 December 31, 2018 Carrying Amount Collateral Carrying Amount Collateral Stages 1 and 2 Ps. 20,203,110 Ps. Ps. Ps. Stage 3 1,659,725 1,543,378 1,225,001 1,058,671 Ps. Ps. 20,916,299 Ps. 19,358,216 Ps. 18,737,884
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 12,911 Ps. 5,909 Ps. 70,611 Ps. 89,431 IFRS 9 adoption (1) 4,021 3,751 1,797 9,569 Loss allowance as of January 1, 2018 – IFRS 9 16,932 9,660 72,408 99,000 Net remeasurement of loss allowance 19,439 1,901 (6,081) 15,259 FX and other movements (2) — — (2) Write-offs (16,669) — — (16,669) Loss allowance as of December 31, 2018 Ps. 19,700 Ps. 11,561 Ps. 66,327 Ps. 97,588 Transfers stages Transfer from Stage 1 to Stage 3 (19,176) — 19,176 — Transfer from Stage 2 to Stage 3 — (754) 754 — Net remeasurement of loss allowance 8,062 4,160 28,041 40,263 FX and other movements (21) (6) (23) (50) Approach change 8,996 (1,421) (10,170) (2,595) Write-offs (4,208) (534) (17,308) (22,050) Loss allowance as of December 31, 2019 Ps. 13,353 Ps. 13,006 Ps. 86,797 Ps. 113,156
Schedule of loss allowance	The table below shows the loss allowance balances as of December 31, 2019 and 2018. December 31, 2019 Stage 1 Stage 2 Stage 3 Lifetime Lifetime ECL not ECL 12-month credit- credit- Simplified ECL impaired impaired approach Total Loan portfolio Loan commercial portfolio Ps. 642,839 Ps. 190,697 Ps. 2,905,794 Ps. — Ps. 3,739,330 Loan consumer portfolio 1,076,150 851,651 1,620,779 — 3,548,580 Loan mortgage portfolio 43,492 73,109 189,636 — 306,237 Loan microcredit portfolio 24,794 11,919 53,112 — 89,825 Loan financial leasing portfolio 65,863 31,356 404,606 — 501,825 Total loan portfolio Ps. 1,853,138 Ps. 1,158,732 Ps. 5,173,927 Ps. — Ps. 8,185,797 Investments in debt securities at amortized cost 737 — — — 737 Other accounts receivable 13,353 13,006 86,797 173,307 286,463 Total loss allowance financial assets at amortized cost Ps. 1,867,228 Ps. 1,171,738 Ps. 5,260,724 Ps. 173,307 Ps. 8,472,997 Investments in debt securities at FVOCI 34,080 — — — 34,080 Loan commitments and financial guarantee contracts 45,509 2,945 1,508 — 49,962 Total loss allowance Ps. 1,946,817 Ps. 1,174,683 Ps. 5,262,232 Ps. 173,307 Ps. 8,557,039 December 31, 2018 Stage 1 Stage 2 Stage 3 Lifetime Lifetime ECL not ECL 12-month credit- credit- Simplified ECL impaired impaired approach Total Loan portfolio Loan commercial portfolio Ps. 695,728 Ps. 190,633 Ps. 3,051,088 Ps. — Ps. 3,937,449 Loan consumer portfolio 998,390 890,556 1,553,365 — 3,442,311 Loan mortgage portfolio 35,187 73,461 148,595 — 257,243 Loan microcredit portfolio 23,348 11,962 52,867 — 88,177 Loan financial leasing portfolio 72,221 30,434 368,352 — 471,007 Total loan portfolio Ps. 1,824,874 Ps. 1,197,046 Ps. 5,174,267 Ps. — Ps. 8,196,187 Investments in debt securities at amortized cost 71 — — — 71 Other accounts receivable 19,700 11,561 66,327 159,303 256,891 Total loss allowance financial assets at amortized cost Ps. 1,844,645 Ps. 1,208,607 Ps. 5,240,594 Ps. 159,303 Ps. 8,453,149 Investments in debt securities at FVOCI 20,757 31,980 46,280 — 99,017 Loan commitments and financial guarantee contracts 40,715 14,358 4,355 — 59,428 Total loss allowance Ps. 1,906,117 Ps. 1,254,945 Ps. 5,291,229 Ps. 159,303 Ps. 8,611,594
Disclosure of detailed information about reconciliation of changes in allowance account for credit losses of financial assets [Text Block]	December 31, 2019 December 31, 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Gross Exposure Commercial Ps. 91,306,719 Ps. 91,306,719 Ps. 91,306,719 Ps. 92,550,025 Ps. 92,550,025 Ps. 92,550,025 Consumer 59,587,929 59,587,929 59,587,929 55,200,581 55,200,581 55,200,581 Mortgages 18,661,389 18,661,389 18,661,389 17,279,362 17,279,362 17,279,362 Microcredit 410,320 410,320 410,320 425,697 425,697 425,697 Financial Leasing 12,161,757 12,161,757 12,161,757 11,426,176 11,426,176 11,426,176 Total gross exposure Ps. 182,128,114 Ps. 182,128,114 Ps. 182,128,114 Ps. 176,881,841 Ps. 176,881,841 Ps. 176,881,841 Loss Allowance Commercial Ps. 3,682,865 Ps. 3,730,491 Ps. 3,809,884 Ps. 3,827,201 Ps. 3,856,836 Ps. 3,907,811 Consumer 3,487,398 3,530,429 3,583,059 3,354,040 3,444,257 3,527,918 Mortgages 296,025 300,681 310,584 237,707 250,531 267,261 Microcredit 88,461 89,720 91,071 87,789 88,197 88,472 Financial Leasing 505,950 511,754 516,462 440,554 443,870 442,532 Total Loss Allowance Ps. 8,060,699 Ps. 8,163,075 Ps. 8,311,060 Ps. 7,947,291 Ps. 8,083,691 Ps. 8,233,994 Proportion of Assets in Stage 2 Commercial 4.1 % 4.1 % 4.2 % 4.0 % 4.1 % 4.0 % Consumer 8.9 % 9.2 % 9.4 % 10.4 % 10.6 % 11.0 % Mortgages 7.6 % 8.2 % 8.6 % 9.3 % 9.9 % 11.0 % Microcredit 6.8 % 6.8 % 6.8 % 6.6 % 6.6 % 6.6 % Financial Leasing 3.8 % 4.2 % 4.3 % 2.6 % 2.6 % 2.6 %
Disclosure of detailed information about portfolio of loans assessed individually for impairment [Text Block]	December 31, 2019 Gross Amount Registered Collateral Guarantees Allowance Recognized Without recognized provision Commercial Ps. 67,450 Ps. 47,703 Ps. — Financial leasing 36,985 — — Subtotal Ps. 104,435 Ps. 47,703 Ps. — With recognized provision Commercial Ps. 5,002,372 Ps. 634,016 Ps. 2,150,877 Consumer 3,177 832 2,238 Financial leasing 795,952 137,855 284,496 Subtotal Ps. 5,801,501 Ps. 772,703 Ps. 2,437,611 Totals Commercial 5,069,822 681,719 2,150,877 Consumer 3,177 832 2,238 Financial leasing 832,937 137,855 284,496 Total Ps. 5,905,936 Ps. 820,406 Ps. 2,437,611 December 31, 2018 Gross Amount Registered Collateral Guarantees Allowance Recognized Without recognized provision Commercial Ps. 85,531 Ps. 126,642 Ps. — Financial leasing 115,881 320,797 — Subtotal Ps. 201,412 Ps. 447,439 Ps. — With recognized provision Commercial Ps. 5,788,368 Ps. 511,605 Ps. 2,195,263 Consumer 2,604 560 1,813 Financial leasing 659,499 243,023 231,056 Subtotal Ps. 6,450,471 Ps. 755,188 Ps. 2,428,132 Totals Commercial 5,873,899 638,247 2,195,263 Consumer 2,604 560 1,813 Financial leasing 775,380 563,820 231,056 Total Ps. 6,651,883 Ps. 1,202,627 Ps. 2,428,132
Disclosure of Detailed Information on Credit Portfolio by Economic Sector [Text Block]	Sector December 31, 2019 % December 31, 2018 % Consumer services Ps. 84,790,144 47 % Ps. 78,976,887 45 % Commercial services 37,925,996 21 % 41,160,951 23 % Construction 11,550,042 6 % 11,093,895 6 % Food, beverage and tobacco 8,941,375 5 % 8,128,767 5 % Transportation and communications 6,504,746 4 % 7,117,087 4 % Public services 5,470,918 3 % 6,123,390 4 % Chemical production 5,847,362 3 % 5,614,918 3 % Other industrial and manufacturing products 5,309,003 3 % 4,859,538 3 % Agricultural 4,563,455 2 % 4,201,518 2 % Government 4,905,685 3 % 3,868,987 2 % Trade and tourism 2,475,550 1 % 2,353,139 1 % Mining products and oil 1,520,420 1 % 1,094,718 1 % Other 2,323,418 1 % 2,288,046 1 % Total of each economic sector Ps. 182,128,114 100 % Ps. 176,881,841 100 %
Disclosure of Detailed Information on Credit Portfolio by Geographical Area [Text Block]	: December 31, 2019 Commercial Consumer Mortgages Microcredit Finance leases (1) Total Colombia Ps. Ps. Ps. 7,548,152 Ps. 410,320 Ps. 11,191,474 Ps. Costa Rica 5,178,529 5,388,382 4,525,877 — 788,798 Panamá 5,402,278 5,900,357 2,444,897 — 83,198 Guatemala 6,174,541 2,881,174 1,805,626 — 52,051 Honduras 3,799,684 2,322,700 964,977 — 34,125 El Salvador 2,488,579 2,778,912 978,368 — 6,639 United States 4,853,155 13 — — — Nicaragua 1,791,156 873,900 393,492 — 5,472 Other countries 755,804 340 — — — Total gross loan portfolio Ps. Ps. Ps. Ps. 410,320 Ps. 12,161,757 Ps. 182,128,114 (1) See Note 4.1.1 December 31, 2018 Commercial Consumer Mortgages Microcredit Finance leases (1) Total Colombia Ps. 63,694,588 Ps. 35,912,585 Ps. 6,672,612 Ps. Ps. 10,466,569 Ps. 117,172,051 Costa Rica 4,860,338 5,190,354 4,343,247 — 802,601 15,196,540 Panamá 5,464,198 5,618,362 2,381,741 — 109,927 13,574,228 Guatemala 5,536,851 2,593,606 1,617,341 — 31,786 9,779,584 Honduras 3,528,929 2,085,005 857,799 — 3,247 6,474,980 El Salvador 2,214,411 2,636,766 969,731 — 6,630 5,827,538 United States 4,549,526 742 — — — 4,550,268 Nicaragua 1,947,643 1,163,054 436,891 — 5,416 3,553,004 Other countries 753,541 107 — — — 753,648 Total gross loan portfolio Ps. 92,550,025 Ps. 55,200,581 Ps. Ps. Ps. 11,426,176 Ps. 176,881,841 (1) See Note 4.1.1
Disclosure of detailed information about classification of loan portfolio by type of currency [Text Block]	December 31, 2019 Colombian Pesos Foreign currency Total Commercial Ps. 55,647,778 Ps. 35,658,941 Ps. 91,306,719 Consumer 39,382,167 20,205,762 59,587,929 Residential mortgage 7,547,978 11,113,411 18,661,389 Microcredit 410,320 — 410,320 Financial leasing (1) 10,043,443 2,118,314 12,161,757 Total gross loan portfolio Ps. 113,031,686 Ps. 69,096,428 Ps. 182,128,114 December 31, 2018 Colombian Pesos Foreign currency Total Commercial Ps. 57,651,220 Ps. 34,898,805 Ps. 92,550,025 Consumer 35,848,422 19,352,159 55,200,581 Residential mortgage 6,672,423 10,606,939 17,279,362 Microcredit 425,697 — 425,697 Financial leasing (1) 9,260,989 2,165,187 11,426,176 Total gross loan portfolio Ps. 109,858,751 Ps. 67,023,090 Ps. 176,881,841 (1) See Note 4.1.1 Dollar is the maximum participation for loan portfolio in foreign currency with 37.9%, equivalent to U.S 21,084 million dollars.
Disclosure of Detailed Information about Investment in Debt Securities by Location [Table Text Block]	As of December 31, 2019 2018 Colombia Ps. 20,026,227 Ps. 18,047,109 Costa Rica 3,006,686 1,674,052 United States of America 1,883,400 2,412,555 Guatemala 1,311,695 999,544 Panama 1,211,680 813,711 Honduras 621,311 586,275 Brazil 417,223 424,339 El Salvador 274,323 40,890 Peru 192,845 352,795 Chile 146,093 150,239 Multilateral – Bladex (Foreign Trade Bank of Latin America) 89,529 87,500 Nicaragua 79,300 64,918 Mexico 74,591 13,761 Multilateral – Central American Bank for Economic Integration 6,642 — Barbados 4,524 — Multilateral – Andean Development Corporation — 31,156 BAC San José Liquid Fund (BAC San José Fondo Liquido – Riesgo País Mixto) — 3,763 Total investments Ps. 29,346,069 Ps. 25,702,607
Disclosure of Detailed Information about Investment in Debt Securities by Sovereign Risk [Table Text Block]	Below is the detail of Grupo Aval’s sovereign debt portfolio issued by Central Governments per country: December 31, 2019 December 31, 2018 % % Investment grade (1) Colombia Ps. 14,069,704 73.17 % Ps. 12,796,415 80.27 % Panama 770,854 4.01 % 550,674 3.45 % United States of America 167,743 0.87 % 415,412 2.61 % Chile 33,743 0.18 % 32,999 0.20 % Ps. 15,042,044 78.22 % Ps. 13,795,500 86.53 % Speculative (2) Barbados 4,524 0.02 % — — % Costa Rica 2,817,392 14.65 % 1,437,850 9.02 % Honduras 403,813 2.10 % 402,275 2.52 % Guatemala 645,802 3.36 % 265,932 1.67 % El Salvador 236,837 1.23 % 40,890 0.26 % Nicaragua 79,300 0.41 % — 0.00 % Ps. 4,187,668 21.78 % Ps. 2,146,947 13.47 % Ps. 19,229,712 100.00 % Ps. 15,942,447 100.00 % Below is the detail of Grupo Aval’s debt portfolio issued by Central Banks: December 31, 2019 December 31, 2018 % % Investment Grade (1) Ps. — — % Ps. — — % Speculative (2) Guatemala Ps. 623,656 63.38 % Ps. 686,970 60.02 % Costa Rica 167,379 17.01 % 208,766 18.24 % Honduras 193,026 19.62 % 184,000 16.07 % Nicaragua — — % 64,918 5.67 % Ps. 984,061 100.00 % Ps. 1,144,654 100.00 % Total sovereign risk Ps. 20,213,773 Ps. 17,087,101 (1) Investment grade includes the risk rating of Fitch Ratings Colombia S.A o F1+ to F3, BRC of Colombia from BRC 1+ to BRC 3 and Standard & Poor’s from AAA to BBB-. Speculative or non-investment grade level includes the risk rating of Fitch Ratings Colombia S.A. from B to E, BRC de Colombia from BRC 4 to BRC 6 and Standard & Poor’s from BB+ to D
Disclosure of Detailed Information on Credit Portfolio by restructuring [Text Block]	Restructured loans December 31, 2019 December 31, 2018 Local currency Ps. 2,611,573 Ps. 2,693,018 Foreign currency 1,779,598 1,275,565 Total restructured Ps. 4,391,171 Ps. 3,968,583
Disclosure of Detailed Information on Foreclosed Assets [Text Block]	December 31, 2019 December 31, 2018 Foreclosed assets received Ps. 297,481 Ps. 188,245 Foreclosed assets sold 133,512 52,785
Disclosure Of Detailed Information About Commitments In Unused Lines Of Credit [Text Block]	Loan commitments and financial guarantee contracts December 31, 2019 December 31, 2018 Notional amount Notional amount Guarantees Ps. 3,341,641 Ps. 3,446,601 Unused letters of credit 1,133,385 1,186,691 Unused limits of overdrafts 67,126 306,740 Unused credit card limits 23,125,249 20,816,061 Other 4,487,203 5,169,588 Total Ps. 32,154,604 Ps. 30,925,681
Disclosure Of Detailed Information About Credit Commitments By Currency [Text Block]	December 31, 2019 December 31, 2018 Colombian Pesos Ps. 14,914,209 Ps. 14,918,915 U.S. dollars 13,750,968 12,885,921 Euro 3,292,845 2,892,670 Other 196,582 228,175 Total Ps. 32,154,604 Ps. 30,925,681
Disclosure of detailed information about offsetting of financial assets and financial liabilities [Text Block]	The following is the detail of the financial instruments subject to offset contractually required as of December 31, 2019 and 2018: December 31, 2019 Gross Gross Amounts Net Amounts of Gross Amounts Not Amounts of Offset in the Assets Presented in Offset in the Consolidated Balance Sheet Recognized Consolidated the Consolidated Financial Cash collateral Net Assets Balance Sheet Balance Sheet Instruments Received Exposure Offsetting assets Derivatives Ps. 1,084,032 Ps. — Ps. 1,084,032 Ps. (314,891) Ps. (42,157) Ps. 726,984 Repurchase agreements 401,464 — 401,464 (319,748) — 81,716 Total Ps. 1,485,496 Ps. — Ps. 1,485,496 Ps. (634,639) Ps. (42,157) Ps. 808,700 Gross Gross Amounts Net Amounts of Gross Amounts Not Amounts of Offset in the Liabilities Presented in Offset in the Consolidated Balance Sheet Recognized Consolidated the Consolidated Financial Cash collateral Net Liabilities Balance Sheet Balance Sheet Instruments Received Exposure Offsetting liabilities Derivatives Ps. 1,056,736 Ps. — Ps. 1,056,736 Ps. (28,587) Ps. (80,775) Ps. 947,374 Repurchase agreements 7,458,662 — 7,458,662 (7,607,482) — (148,820) Total Ps. 8,515,398 Ps. — Ps. 8,515,398 Ps. (7,636,069) Ps. (80,775) Ps. 798,554 December 31, 2018 Gross Gross Amounts Net Amounts of Gross Amounts Not Amounts of Offset in the Assets Presented in Offset in the Consolidated Balance Sheet Recognized Consolidated the Consolidated Financial Cash collateral Net Assets Balance Sheet Balance Sheet Instruments Received Exposure Offsetting assets Derivatives Ps. 798,824 Ps. — Ps. 798,824 Ps. (199,773) Ps. (265,361) Ps. 333,690 Repurchase agreements 4,607,862 — 4,607,862 (4,348,344) (50,515) 209,003 Total Ps. 5,406,686 Ps. — Ps. 5,406,686 Ps. (4,548,117) Ps. (315,876) Ps. 542,693 Gross Gross Amounts Net Amounts of Gross Amounts Not Amounts of Offset in the Liabilities Presented in Offset in the Consolidated Balance Sheet Recognized Consolidated the Consolidated Financial Cash collateral Net Liabilities Balance Sheet Balance Sheet Instruments Received Exposure Offsetting liabilities Derivatives Ps. 1,006,844 Ps. — Ps. 1,006,844 Ps. (10,116) Ps. (50,982) Ps. 945,746 Repurchase agreements 5,068,481 — 5,068,481 (5,169,598) — (101,117) Total Ps. 6,075,325 Ps. — Ps. 6,075,325 Ps. (5,179,714) Ps. (50,982) Ps. 844,629
Disclosure of Break Down of Financial Assets and Liabilities Exposed to Trading Risk [Table Text Block]	Account December 31, 2019 December 31, 2018 Financial assets Debt financial assets Trading Ps. 4,673,113 Ps. 3,762,978 Investments in debt securities at FVTPL 10,102 31,256 Investments in debt securities at FVOCI 21,608,992 18,935,757 Total debt securities Ps. 26,292,207 Ps. 22,729,991 Derivative assets instruments Ps. 917,434 Ps. 768,686 Hedging derivatives assets 166,598 30,138 1,084,032 798,824 Total financial assets Ps. 27,376,239 Ps. 23,528,815 Liabilities Derivative liabilities instruments 962,438 811,305 Hedging derivatives liabilities 94,298 195,539 Total financial liabilities 1,056,736 1,006,844 Net position Ps. 26,319,503 Ps. 22,521,971
Disclosure of Detailed Information about Financial Subsidiaries Risk [Text Block]	December 31, 2019 December 31, 2018 Basis points of Basis points of Entity Value regulatory capital Value regulatory capital Banco Bogotá 1,280,084 141 924,767 116 Banco de Occidente 165,928 52 189,871 75 Banco Popular 128,317 72 162,888 93 Banco AV Villas 58,032 59 37,942 41 Corficolombiana 173,456 7 219,656 12
Disclosure of Detailed Information about Foreign Currency Assets and Liabilities [Text Block]	The maximum and minimum total foreign currency position and the spot foreign currency position are determined according to each entity’s regulatory capital. The regulatory capital that is used in the calculations corresponds to the regulatory capital of the last business day of two-months ago. The exchange rate used in the calculation is the average of the exchange rate set by the Superintendency of Finance at the end of the previous month. A substantial amount of Grupo Aval’s foreign currency assets and liabilities are in U.S. dollars. Details on the assets and liabilities in foreign currency held by Grupo Aval at December 31, 2019 and 2018 are shown below: December 31,2019 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 5,003 1,266 20,545,934 Investments in debt securities at fair value through profit or loss 168 17 606,107 Investments in debt securities at fair value through OCI 2,634 705 10,942,222 Investments in debt securities at amortized cost 7 - 23,043 Loan portfolio financial assets at amortized cost 16,078 5,006 69,096,428 Derivative financial assets held for trading 257 - 843,700 Derivative financial assets held for hedging 51 - 166,598 Trade receivable 238 168 1,329,979 Total financial assets 24,436 7,162 103,554,011 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 274 - 897,138 Derivative financial liabilities held for hedging 28 - 90,726 Customer deposits 16,772 5,828 74,064,051 Financial obligations 8,428 772 30,148,583 Accounts payable 407 - 1,334,317 Total financial liabilities 25,909 6,600 106,534,815 Net financial asset (liability) position (1,473) 562 (2,980,804) December 31,2018 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial assets Cash and cash equivalents 4,859 1,075 19,297,896 Investments in debt securities held for trading 121 15 441,801 Investments in securities available-for-sale 2,201 589 9,068,739 Investments in debt securities held-to-maturity 10 — 32,321 Loan portfolio financial assets at amortized cost 15,923 4,706 67,023,090 Derivative financial assets held for trading 222 1 725,433 Derivative financial assets held for hedging 9 — 30,138 Trade receivable 246 176 1,370,820 Total financial assets 23,591 6,562 97,990,238 Other currencies Total in U.S. dollars converted to U.S. Colombian pesos Account (Millions) dollars (Millions) (Millions) Financial liabilities Derivative financial liabilities held for trading 236 3 776,162 Derivative financial liabilities held for hedging 60 — 195,539 Customer deposits 14,914 5,077 64,971,825 Financial obligations 9,457 666 32,899,230 Accounts payable 442 — 1,437,447 Total financial liabilities 25,109 5,746 100,280,203 Net financial asset (liability) position (1,518) 816 (2,289,965)
Disclosure of detailed information about requested percentage of deposits to be maintained as reserves in each country [Text Block]	Requested Percentage Country Details % Colombia Checking account and Savings accounts 11% Time deposits < 18 months 4.5% Guatemala Deposits and Capital raising 11.6% El Salvador 1st Demand deposits (1) 25% 2nd Demand deposits (2) 25% 3rd Debt securities 50% Honduras Demand deposits 12% Mandatory investment in local currency 5% Mandatory investment in foreign currency 12% Nicaragua Daily, Liabilities in local and foreign currency 12% Biweekly, Liabilities in local and foreign currency 14% Costa Rica Deposits in local and foreign currency 15% Capital raising in local and foreign currency 15% (1) This refers to demand deposits in Central Bank or overseas banks. (2) This refers to demand deposits in Central Bank, overseas banks or debt securities issue by the Central Bank.
Disclosure Of Sensitivity Analysis Of Foreign Exchange Effect [Table Text Block]	December 31,2019 Increase Decrease Ps.100 per U.S. Ps.100 per U.S. dollar dollar Equity Ps. (13,874) Ps. 13,874 Foreign exchange effect on profit before taxes (20,708) 20,708 December 31,2018 Increase Decrease Ps.100 per U.S. Ps.100 per U.S. dollar dollar Equity Ps. (33,579) Ps. 33,579 Foreign exchange effect on profit before taxes (53,300) 53,300
Disclosure Of Break Down Of Investments From Initial Investment [Table Text Block]	At December 31, 2019 2018 Investment Investment subject to Percentage subject to Regulatory Regulatory of Regulatory Regulatory Percentage of VaR VaR portfolio VaR VaR portfolio More than 36 months 75,584 11,111 100 % 45,706 6,719 100 % Total 75,584 11,111 100 % 45,706 6,719 100 %
Schedule of Interest Rate Risk on Assets and Liabilities [Text Block]	December 31, 2019 Less than From one to From six to More than a Non- Assets one month six months twelve months year interest Total Cash and cash equivalents Ps. 2,662,681 Ps. — Ps. — Ps. — Ps. 27,454,555 Ps. 30,117,236 Investments in debt securities at FVTPL 82,749 1,972,593 871,982 1,745,789 — 4,673,113 Investments in debt securities mandatory at FVTPL — — — 10,102 — 10,102 Investments in debt securities at FVOCI 743,846 2,132,946 1,289,402 17,442,798 — 21,608,992 Investments in debt securities at amortized cost 2,765,688 265,131 23,043 — — 3,053,862 Service concession arrangements — — — 2,706,030 — 2,706,030 Commercial loans and leases 21,918,784 44,037,038 8,461,102 27,238,736 — Consumer loans and leases 10,993,634 9,758,318 1,660,573 37,427,926 — 59,840,451 Mortgages and housing leases 7,212,959 1,890,949 900,236 10,217,539 — 20,221,683 Microcredit loans and leases 30,911 18,568 39,283 321,558 — 410,320 Trade receivable — — — 387,059 8,895,674 9,282,733 Total Assets Ps. 46,411,252 Ps. 60,075,543 Ps. 13,245,621 Ps. 97,497,537 Ps. 36,350,229 Ps. — Less than From one to From six to More than a Non- Liabilities one month six months twelve months year interest Total Checking accounts Ps. 21,174,879 Ps. — Ps. — Ps. — Ps. 21,274,823 Ps. 42,449,702 Time deposits 10,514,186 29,426,123 15,525,670 17,759,210 — 73,225,189 Saving deposits 59,352,760 — — — . — 59,352,760 Other deposits — — — — 463,770 463,770 Interbank and overnight funds 8,414,438 75,543 — 750,498 — 9,240,479 Leases contracts* 93,438 130,472 158,021 2,651,571 — 3,033,502 Borrowing from banks and similar 2,249,132 6,367,707 2,335,725 5,817,278 — 16,769,842 Long-term debt 276,735 3,567,489 680,677 17,393,367 — 21,918,268 Borrowing from development entities 1,175,637 1,199,311 115,314 1,392,223 — 3,882,485 Total Liabilities Ps. 103,251,205 Ps. 40,766,645 Ps. 18,815,407 Ps. 45,764,147 Ps. 21,738,593 Ps. *Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). December 31, 2018 Less than From one to From six to More than a Non- Assets one month six months twelve months year interest Total Cash and cash equivalents Ps. 3,110,667 Ps. — Ps. — Ps. — Ps. 25,290,616 Ps. 28,401,283 Investments in debt securities at FVTPL 25,077 376,999 1,216,834 2,144,068 — 3,762,978 Investments in debt securities mandatory at FVTPL — — — 31,256 — 31,256 Investments in debt securities at FVOCI 131,497 2,056,389 1,163,367 15,584,504 — 18,935,757 Investments in debt securities at amortized cost 671,047 951,850 1,348,691 1,028 — 2,972,616 Service concession arrangements — — — 2,488,414 — 2,488,414 Commercial loans and leases 28,546,532 29,463,725 9,612,217 34,786,503 — 102,408,977 Consumer loans and leases 10,538,797 7,975,944 2,566,425 34,373,898 — 55,455,064 Mortgages and housing leases 7,649,242 1,771,712 419,518 8,751,631 — 18,592,103 Microcredit loans and leases 31,729 17,956 38,304 337,708 — 425,697 Trade receivable — — — 3,043,403 4,025,717 7,069,120 Total Assets Ps. 50,704,588 Ps. 42,614,575 Ps. 16,365,356 Ps. 101,542,413 Ps. 29,316,333 Ps. 240,543,265 Less than From one to From six to More than a Non- Liabilities one month six months twelve months year interest Total Checking accounts Ps. 22,377,653 Ps. — Ps. — Ps. — Ps. 17,325,225 Ps. 39,702,878 Time deposits 9,741,623 28,546,101 15,447,825 13,117,463 — 66,853,012 Saving deposits 36,523,899 20,697,540 — — — 57,221,439 Other deposits — — — — 582,122 582,122 Interbank and overnight funds 6,099,084 714,994 — — — 6,814,078 Borrowing from banks and others 1,566,524 11,497,277 1,164,075 6,382,890 — 20,610,766 Long-term debt 73,565 3,369,988 656,291 16,040,506 — 20,140,350 Borrowing from development entities 563,370 259,194 1,607,273 1,216,959 — 3,646,796 Total Liabilities Ps. 76,945,718 Ps. 65,085,094 Ps. 18,875,464 Ps. 36,757,818 Ps. 17,907,347 Ps. 215,571,441
Disclosure of Breakdown of Interest Bearing Assets and Liabilities, by Interest Rate Type and Maturity [Table Text Block]	December 31, 2019 Under one year Over one year Non- Assets Variable Fixed Variable Fixed interest Total Cash due from banks and Central Bank Ps. 2,619,126 Ps. 43,555 Ps. — Ps. — Ps. 27,454,555 Ps. 30,117,236 Investments in debt securities at FVTPL 288,176 2,319,323 383,470 1,682,144 — 4,673,113 Investments in debt securities mandatory at FVTPL — — — 10,102 — 10,102 Investments in debt securities at FVOCI 7,434 4,054,359 2,377,875 15,169,324 — 21,608,992 Investments in debt securities at amortized cost 3,025,213 28,649 — — — 3,053,862 Service concession arrangements — — 2,706,030 — — 2,706,030 Commercial loans and leases 41,941,576 4,340,760 52,017,308 3,356,016 — 101,655,660 Consumer loans and leases 1,059,643 15,901,205 10,746,657 32,132,946 — 59,840,451 Mortgages and housing leases 43,814 391,869 11,322,696 8,463,304 — 20,221,683 Microcredit loans and leases 1,954 223,485 3,700 181,181 — 410,320 Trade receivable — — 263,922 123,137 8,895,674 9,282,733 Total Assets Ps. 48,986,936 Ps. 27,303,205 Ps. 79,821,658 Ps. 61,118,154 Ps. 36,350,229 Ps. Under one year Over one year Non- Liabilities Variable Fixed Variable Fixed interest Total Checking accounts Ps. 384,579 Ps. 20,790,300 Ps. — Ps. — Ps. 21,274,823 Ps. 42,449,702 Time deposits 12,673,158 37,790,186 7,099,730 15,662,115 — 73,225,189 Saving deposits 17,159,419 42,193,341 — — . — 59,352,760 Other deposits — — — — 463,770 463,770 Interbank and overnight funds — 9,240,479 — — — 9,240,479 Leases contracts* 3,586 404,434 132,928 2,492,554 — 3,033,502 Borrowing from banks and other 1,372,926 8,504,875 3,216,263 3,675,778 — 16,769,842 Long-term debt 959,068 1,473,258 9,738,305 9,747,637 — 21,918,268 Borrowing from development entities 572,600 10,537 3,256,614 42,734 — 3,882,485 Total Liabilities Ps. 33,125,336 Ps. Ps. 23,443,840 Ps. 31,620,818 Ps. 21,738,593 Ps. *Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). December 31, 2018 Under one year Over one year Non- Assets Variable Fixed Variable Fixed interest Total Cash due from banks and Central Bank Ps. 2,014,270 Ps. 1,096,397 Ps. — Ps. — Ps. 25,290,616 Ps. 28,401,283 Investments in debt securities at FVTPL 159,486 1,459,424 231,620 1,912,448 — 3,762,978 Investments in debt securities mandatory at FVTPL — — — 31,256 — 31,256 Investments in debt securities at FVOCI 13,532 3,337,721 872,882 14,711,622 — 18,935,757 Investments in debt securities at amortized cost 1,349,722 725,704 896,162 1,028 — 2,972,616 Service concession arrangements — — 2,488,414 — — 2,488,414 Commercial loans and leases 44,094,950 4,259,106 51,184,839 2,870,082 — 102,408,977 Consumer loans and leases 1,099,251 14,713,486 10,482,629 29,159,698 — 55,455,064 Mortgages and housing leases 53,296 330,277 10,924,349 7,284,181 — 18,592,103 Microcredit loans and leases 2,698 223,954 3,582 195,463 — 425,697 Trade receivable 397 — 2,989,292 53,714 4,025,717 7,069,120 Total Assets Ps. 48,787,602 Ps. 26,146,069 Ps. 80,073,769 Ps. 56,219,492 Ps. 29,316,333 Ps. Under one year Over one year Non- Liabilities Variable Fixed Variable Fixed interest Total Checking accounts Ps. — Ps. 22,377,653 Ps. — Ps. — Ps. 17,325,225 Ps. 39,702,878 Time deposits 11,332,638 33,720,396 6,801,559 14,998,419 — 66,853,012 Saving deposits 16,485,565 40,735,874 — — . — 57,221,439 Other deposits — — — — 582,122 582,122 Interbank and overnight funds 3,492,343 3,321,735 — — — 6,814,078 Borrowing from banks and other 3,406,673 9,984,328 2,899,475 4,320,290 — 20,610,766 Long-term debt 749,442 804,281 6,650,249 11,936,378 — 20,140,350 Borrowing from development entities 638,286 149,508 2,852,178 6,824 — 3,646,796 Total Liabilities Ps. 36,104,947 Ps. 111,093,775 Ps. 19,203,461 Ps. 31,261,911 Ps. 17,907,347 Ps.
Disclosure of detailed information about the breakdown by time bands of the Liquid Assets and the Liquidity Risk Indicator [Text Block]	: December 31, 2019 Liquid assets available at the end From 31 to 90 Bank of the year (1) From 1 to 7 days (2) From 1 to 30 days (2) days (2) Banco de Bogotá 11,480,613 9,127,754 2,141,891 (14,048,998) Banco Occidente 6,013,484 5,381,263 3,449,519 (1,382,231) Banco Popular 2,708,977 2,196,520 543,111 (2,426,968) Banco AV Villas 1,777,483 1,489,391 573,001 (1,756,092) Corficolombiana 1,648,321 1,238,060 970,752 440,603 December 31, 2018 Liquid assets available at the end From 31 to 90 Bank of the year (1) From 1 to 7 days (2) From 1 to 30 days (2) days (2) Banco de Bogotá 10,936,886 10,370,295 8,892,523 321,897 Banco Occidente 5,913,723 5,244,524 4,185,759 1,631,575 Banco Popular 3,622,232 3,305,221 2,505,573 164,075 Banco AV Villas 2,035,362 1,724,944 1,304,447 (37,659) Corficolombiana 1,131,464 585,045 386,081 (159,983) (1) Liquid assets are the sum of the assets that are readily convertible to cash. These assets include cash on hand and bank deposits including Central Bank deposits, securities or in money market transactions and have not been used in borrowing operations in the money market. It also includes investments coupons that have been transferred to the entity in debt securities recorded at fair value, investments in mutual funds with no withdrawal restrictions, and debt securities carried at amortized cost, provided they are legally required or “mandatory” investments, subscribed in the primary market and that can be used for money market operations. The value of the liquid assets mentioned above, is calculated at the fair value market price on the date of the assessment. (2) This amount is the remaining value of the liquid assets in the specified time period, or the LRI, that is calculated as the difference among the liquid assets and the liquidity requirement. The liquidity requirement is the difference of contractual cash inflows and contractual and non-contractual cash outflows during the period according to the LRI methodology.
Disclosure of detailed information about the breakdown by contractual undiscounted cash flows of the financial assets and liabilities including projected contractual interest receivable and payable [Text Block]	December 31, 2019 Less than From one to six From six to twelve More than Assets one month months months a year Total Cash and cash equivalents Ps. 28,683,338 Ps. — Ps. — Ps. — Ps. 28,683,338 Investments in debt securities at FVTPL 937,550 1,491,328 984,902 1,475,733 4,889,513 Investments in debt securities at FVOCI 1,269,356 2,334,438 1,951,863 19,921,644 25,477,301 Investments in debt securities at amortized cost 833,179 858,257 1,404,163 — 3,095,599 Commercial loans and leases 14,025,655 29,465,200 16,865,877 69,494,065 129,850,797 Consumer loans and leases 8,662,984 17,571,059 10,005,080 53,010,916 89,250,039 Mortgages and housing leases 447,147 984,046 1,147,043 33,219,821 35,798,057 Microcredit loans and leases 55,112 122,167 123,624 240,181 541,084 Trading derivatives 620,242 229,909 37,138 29,374 916,663 Hedging derivatives 163,825 3,401 18 — 167,244 Trade receivable 2,342,007 — — 9,631,524 11,973,531 Other assets 1,163,339 — — — 1,163,339 Total Assets Ps. 59,203,734 Ps. 53,059,805 Ps. 32,519,708 Ps. 187,023,258 Ps. 331,806,505 Less than From one to six From six to twelve More than Liabilities one month months months a year Total Checking accounts Ps. 42,449,701 Ps. — Ps. — Ps. — Ps. 42,449,701 Time Deposits 8,631,705 25,954,834 17,871,428 25,483,897 77,941,864 Saving deposits 59,352,759 — — — 59,352,759 Other deposits 463,770 — — — 463,770 Interbank and overnight funds 5,819,104 3,420,692 — — 9,239,796 Leases contracts* 92,255 122,866 152,352 2,669,047 3,036,520 Borrowing from banks and other 2,211,662 4,877,570 3,215,999 7,450,891 17,756,122 Long-term debt 92,130 1,244,776 1,260,353 23,233,085 25,830,344 Borrowing from development entities 119,662 751,027 388,785 3,434,525 4,693,999 Trading derivatives 606,476 277,657 25,612 18,240 927,985 Hedging derivatives 73,625 19,681 18 3,359 96,683 Other liabilities 4,997,412 240,030 9,306 1,121,438 6,368,186 Total Liabilities Ps. 124,910,261 Ps. 36,909,133 Ps. 22,923,853 Ps. 63,414,482 Ps. 248,157,729 Less than one From one to From six to More than a Commitments Loans month six months twelve months year Total Guarantees Ps. 2,488,242 Ps. — Ps. — Ps. — Ps. 2,488,242 Standby letters of credit 953,289 — — — 953,289 Overdraft facility 67,126 — — — 67,126 Standby credit card facility 20,054,171 109,451 82,088 328,352 20,574,062 Undrawn approved loans 561,330 52,807 — — 614,137 Others 99,270 — — — 99,270 Total Commitments Loans Ps. 24,223,428 Ps. 162,258 Ps. 82,088 Ps. 328,352 Ps. 24,796,126 *Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A). December 31, 2018 Less than one From one to From six to More than a Assets month six months twelve months year Total Cash and cash equivalents Ps. 28,450,114 Ps. — Ps. — Ps. — Ps. 28,450,114 Investments in debt securities at FVTPL 576,072 350,307 1,026,669 2,018,209 3,971,257 Investments in debt securities at FVOCI 163,389 2,272,601 1,547,078 18,292,502 22,275,570 Investments in debt securities at amortized cost 1,691,200 447,674 866,184 1,019 3,006,077 Commercial loans and leases 12,524,966 24,196,186 13,982,791 58,838,873 109,542,816 Consumer loans and leases 6,218,323 12,707,647 7,369,756 45,240,501 71,536,227 Mortgages and housing leases 297,155 1,376,279 1,626,730 32,061,546 35,361,710 Microcredit loans and leases 58,093 125,474 128,180 256,278 568,025 Trading derivatives 476,088 244,385 22,483 14,216 757,172 Hedging derivatives 28,941 4,083 — — 33,024 Trade receivable 4,260,837 — 397 2,929,814 7,191,048 Other assets 631,231 — — — 631,231 Total Assets Ps. 55,376,409 Ps. 41,724,636 Ps. 26,570,268 Ps. 159,652,958 Ps. 283,324,271 Less than one From one to From six to More than a Liabilities month six months twelve months year Total Checking accounts Ps. 39,708,169 Ps. — Ps. — Ps. — Ps. 39,708,169 Time Deposits 8,375,127 26,030,729 15,605,292 20,730,824 70,741,972 Saving deposits 57,443,560 — — — 57,443,560 Other deposits 582,122 — — — 582,122 Interbank and overnight funds 6,813,329 — — — 6,813,329 Borrowing from banks and other 1,665,739 8,779,185 4,490,249 7,248,223 22,183,396 Long-term debt 138,362 904,752 1,896,186 21,493,625 24,432,925 Borrowing from development entities 145,712 578,545 423,122 3,189,314 4,336,693 Trading derivatives 515,697 236,390 20,305 27,955 800,347 Hedging derivatives 182,849 6,587 6,718 — 196,154 Other Liabilities 6,884,154 896,154 67,042 299 7,847,649 Total Liabilities Ps. 122,454,820 Ps. 37,432,342 Ps. 22,508,914 Ps. 52,690,240 Ps. 235,086,316 Less than one From one to From six to More than a Commitments Loans month six months twelve months year Total Guarantees Ps. 2,297,206 Ps. 9,742 Ps. 4,222 Ps. 2,370 Ps. 2,313,540 Standby letters of credit 928,585 208 2 — 928,795 Overdraft facility 306,740 — — — 306,740 Standby credit card facility 20,409,059 — — — 20,409,059 Undrawn approved loans 3,612,600 — — — 3,612,600 Others 394,688 — — — 394,688 Total Commitments Loans Ps. 27,948,878 Ps. 9,950 Ps. 4,224 Ps. 2,370 Ps. 27,965,422
Disclosure of detailed information about the calculation of the minimum regulatory capital [Text Block]	Grupo Aval’s financial subsidiaries are subject to a “Total Solvency Risk Ratio” (Total Regulatory Capital/Risk Weighted Assets) of at least 9% and a “Basic Solvency Risk Ratio” (Basic Ordinary Regulatory Capital/Risk Weighted Assets) of at least 4.5%. See Regulatory framework for Colombian financial institutions - Capital Adequacy Requirements section. As of December, 31 2019, and 2018, all of Grupo Aval´s financial subsidiaries complied with the minimum regulatory capital requirements, as established by Basel II. Below is shown the consolidated outcome by entity of the minimum regulatory capital, required for the entities regulated by the Superintendency of Finance: December 31, 2019 Banco de Banco de Banco Banco AV Regulatory Capital Bogotá Occidente Popular Villas Corficolombiana Regulatory Capital 18,508,842 3,908,477 2,384,460 1,293,359 4,032,713 Basic ordinary equity 13,082,557 3,202,018 1,898,181 1,174,605 3,761,178 Basic additional equity 5,426,285 706,459 486,279 118,754 271,535 Market risk 14,223,159 1,401,440 1,425,745 644,799 1,927,291 Credit risk 129,836,198 31,807,330 21,015,333 11,488,357 10,102,536 Total assets weighted by risk 144,059,357 33,208,770 22,441,078 12,133,156 12,029,827 Total solvency risk index. 12.85 % 11.77 % 10.63 % 10.66 % 33.52 % Basic solvency risk index. 9.08 % 9.64 % 8.46 % 9.68 % 31.27 % December 31, 2018 Banco de Banco de Banco Banco AV Regulatory Capital Bogotá Occidente Popular Villas Corficolombiana Regulatory Capital 17,730,918 3,917,005 2,170,075 1,176,179 3,631,640 Basic ordinary equity 11,655,669 3,166,981 1,648,438 1,106,529 3,381,550 Basic additional equity 6,075,249 750,024 521,637 69,650 250,090 Market risk 10,275,186 1,754,924 1,809,867 421,379 2,440,618 Credit risk 120,604,192 29,405,386 19,624,155 10,759,423 7,834,598 Total assets weighted by risk 130,879,378 31,160,310 21,434,022 11,180,802 10,275,216 Total solvency risk index. 13.55 % 12.57 % 10.12 % 10.52 % 35.34 % Basic solvency risk index. 8.91 % 10.16 % 7.69 % 9.90 % 32.91 %
Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2019 2020 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Inflation 3.72 % 3.83 % 3.95 % 2.46 % 3.38 % 4.07 % Interest rates 4.25 % 4.25 % 4.25 % 3.50 % 4.25 % 5.25 % GDP growth 3.01 % 3.20 % 3.57 % 2.17 % 3.22 % 4.19 % House prices (2.68) % (0.85) % 1.07 % (3.29) % 0.96 % 7.03 % Unemployment rate 10.72 % 10.25 % 10.01 % 11.12 % 10.22 % 9.30 %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 23 % 60 % 17 % 25 % 53 % 22 %
Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 3.72 % 3.53 % 3.26 % Interest rates 0.26 % (0.03) % (0.30) % GDP growth 2.15 % 3.19 % 3.71 % Exchange rate 1.54 % (0.46) % (0.95) %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 10 % 70 % 20 % 20 % 60 % 20 %
Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 5.07 % 4.61 % 3.34 % Interest rates (0.30) % (1.45) % (3.25) % GDP growth 1.98 % 2.95 % 4.04 % Exchange rate 4.50 % 3.34 % 0.72 %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 10 % 65 % 25 % 30 % 55 % 15 %
El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 2.11 % 0.97 % — % Interest rates 0.34 % 0.03 % (0.07) % GDP growth 1.84 % 2.40 % 2.80 %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 15 % 70 % 15 % 10 % 80 % 10 %
Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 8.92 % 6.58 % 3.34 % Interest rates 4.93 % 1.70 % (0.99) % GDP growth (5.61) % (3.08) % (1.26) % Exchange rate 3.74 % 3.01 % 2.72 %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 15 % 70 % 15 % 5 % 50 % 45 %
Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 4.04 % 1.91 % 1.76 % Interest rates (0.99) % (1.58) % (1.81) % GDP growth 1.76 % 2.59 % 3.03 % Exchange rate 3.93 % 0.22 % (1.07) %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 20 % 60 % 20 % 40 % 50 % 10 %
Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Economic Scenario for Key Indicators of Credit Risk and Credit Losses [Table Text Block]	2020 Scenario A Scenario B Scenario C Inflation 1.71 % 0.77 % 0.54 % Interest rates 0.56 % 0.08 % (0.35) % GDP growth 2.97 % 3.83 % 4.89 %
Disclosure Of Scenario Of Probability Of Weighting In Measuring Expected Credit Losses [Table Text Block]	2019 2018 Scenario A Scenario B Scenario C Scenario A Scenario B Scenario C Scenario probability 15 % 60 % 25 % 5 % 70 % 25 %
Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Financial Subsidiaries Risk by Type [Text Block]	Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 444,950 520,569 607,973 568,537 Exchange rate 277,932 334,039 383,189 379,406 Shares 8,394 9,601 10,964 10,964 Mutual funds 270,918 308,799 322,458 321,177 VaR portfolio 1,002,195 1,173,008 1,318,037 1,280,084 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 352,595 387,828 420,474 352,595 Exchange rate 234,509 263,363 298,257 298,257 Shares 6,647 7,605 8,335 8,231 Mutual funds 200,510 226,030 266,906 265,684 VaR portfolio 828,688 884,826 969,931 924,767
Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Financial Subsidiaries Risk by Type [Text Block]	Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 125,615 144,188 162,628 158,200 Exchange rate 104 2,458 4,426 2,995 Shares — — — — Mutual funds 4,317 4,556 4,733 4,733 VaR portfolio 130,036 151,202 171,787 165,928 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 184,106 199,399 218,732 184,106 Exchange rate 595 1,697 3,817 1,479 Shares — — — — Mutual funds 2,820 3,849 4,526 4,286 VaR portfolio 187,521 204,945 227,074 189,871
Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Financial Subsidiaries Risk by Type [Text Block]	Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 107,694 108,389 109,605 108,112 Exchange rate 4,699 5,155 5,615 5,280 Shares 22 22 23 348 Mutual funds 8,701 10,769 14,954 14,577 VaR portfolio 121,491 124,335 130,135 128,317 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 115,829 136,338 154,233 148,343 Exchange rate 2,125 3,867 6,135 3,325 Shares 929 949 963 Mutual funds 6,583 6,971 10,420 10,274 VaR portfolio 126,533 148,125 168,310 162,888
Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Financial Subsidiaries Risk by Type [Text Block]	Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 22,193 40,628 55,972 55,021 Exchange rate 1 27 80 80 Shares — — — — Mutual funds 489 628 2,931 2,931 VaR portfolio 22,852 41,284 58,032 58,032 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 12,884 35,893 48,978 37,115 Exchange rate — 985 2,738 30 Shares — — — — Mutual funds 177 1,441 4,455 797 VaR portfolio 15,844 38,319 52,166 37,942
Corficolombiana S.A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Financial Subsidiaries Risk by Type [Text Block]	Maximum, Minimum and Average VaR Values December 31, 2019 Minimum Average Maximum Period end Interest rate 67,499 104,128 156,208 154,477 Exchange rate 610 2,599 4,867 4,129 Shares 10,864 11,085 11,283 12,119 Mutual funds 2,577 2,935 3,473 2,731 VaR portfolio 81,632 120,746 174,832 173,456 Maximum, Minimum and Average VaR Values December 31, 2018 Minimum Average Maximum Period end Interest rate 187,983 201,515 211,039 208,375 Exchange rate 436 4,490 7,707 436 Shares 10,125 10,370 10,954 10,125 Mutual funds 699 856 1,020 720 VaR portfolio 205,505 217,231 226,727 219,656
Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	December 31, 2019 December 31, 2018 Investment grade Sovereign (*) Ps. 2,428,981 Ps. 2,270,642 Other public entities (**) 175,793 128,546 Corporate 61,001 30,207 Financial entities 1,370,232 1,101,157 Total investment grade Ps. 4,036,007 Ps. 3,530,552 Speculative grade Sovereign (*) Ps. 136,314 Ps. 98,155 Central banks 13,966 12,914 Corporate 4,084 — Financial entities 480,189 117,594 Total Speculative grade Ps. 634,553 Ps. 228,663 Without grade or not available Corporate Ps. 2,553 Ps. 3,763 Total without grade or not available Ps. 2,553 Ps. 3,763 Ps. 4,673,113 Ps. 3,762,978 (*) A sovereign credit rating considers the risk of Treasury issuer or similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general including regional and local governments.
Disclosure of Detailed Information about Investment in Debt Securities by Sector [Table Text Block]	December 31, December 31, 2019 2018 In Colombian Pesos Securities issued or secured by Colombian Government Ps. 2,424,033 Ps. 2,210,108 Securities issued or secured by other Colombian Government entities 175,794 108,072 Securities issued or secured by other financial entities 1,402,094 972,789 Securities issued or secured by non-financial sector entities 33,942 29,122 Others 31,143 1,086 Ps. 4,067,006 Ps. 3,321,177 In foreign currency Securities issued or secured by Colombian Government 1,727 60,534 Securities issued or secured by other Colombian Government entities — 20,473 Securities issued or secured by foreign Governments 139,534 98,155 Securities issued or secured by central banks 13,966 12,914 Securities issued or secured by other financial entities 448,328 245,962 Others 2,552 3,763 Ps. 606,107 Ps. 441,801 Total trading debt securities Ps. 4,673,113 Ps. 3,762,978
Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	December 31, 2019 December 31, 2018 Investment grade Corporate 10,102 31,256 Total investment grade Ps. 10,102 Ps. 31,256
Disclosure of Detailed Information about Investment in Debt Securities by Sector [Table Text Block]	December 31, December 31, 2019 2018 In Colombian Pesos Others 10,102 31,256 Total debt securities mandatorily at FVTPL Ps. 10,102 Ps. 31,256
Financial assets at amortised cost, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed Information about Investment in Debt Securities by Sector [Table Text Block]	The balance of financial assets in investments in debt securities at amortized cost includes the following as of December 31 2019 and 2018: December 31, December 31, 2019 2018 In Colombian Pesos Securities issued or secured by other Colombian Government entities Ps. 3,029,802 Ps. 2,931,172 Securities issued or secured by other financial entities 1,017 9,123 Ps. 3,030,819 Ps. 2,940,295 In foreign currency Securities issued or secured by foreign Governments 23,043 32,321 Ps. 23,043 Ps. 32,321 Total investments in debt securities at amortized cost Ps. 3,053,862 Ps. 2,972,616
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 12,590,020 Ps. — Ps. — Ps. 12,590,020 Other public entities (**) 465,677 — — 465,677 Corporate 228,447 — — 228,447 Financial entities 2,504,060 — — 2,504,060 Multilaterals 96,171 — — 96,171 Total investment grade Ps. 15,884,375 Ps. — Ps. — Ps. 15,884,375 Speculative grade Sovereign (*) Ps. 4,051,354 Ps. — Ps. — Ps. 4,051,354 Central banks 970,095 — — 970,095 Corporate 152,303 — — 152,303 Financial entities 550,865 — — 550,865 Total speculative grade Ps. 5,724,617 Ps. — Ps. — Ps. 5,724,617 Ps. 21,608,992 Ps. — Ps. — Ps. 21,608,992 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 11,492,538 Ps. — Ps. — Ps. 11,492,538 Other public entities (**) 497,634 — — 497,634 Corporate 135,985 — — 135,985 Financial entities 2,732,127 — — 2,732,127 Multilaterals 118,657 — — 118,657 Total investment grade Ps. 14,976,941 Ps. — Ps. — Ps. 14,976,941 Speculative grade Sovereign (*) Ps. 1,994,205 Ps. 54,587 Ps. — Ps. 2,048,792 Central banks 1,066,822 64,918 — 1,131,740 Corporate 61,485 132,817 — 194,302 Financial entities 375,352 201,002 — 576,354 Total speculative grade Ps. 3,497,864 Ps. 453,324 Ps. — Ps. 3,951,188 Default Corporate Ps. — Ps. — Ps. 7,628 Ps. 7,628 Total default Ps. — Ps. — Ps. 7,628 Ps. 7,628 Ps. 18,474,805 Ps. 453,324 Ps. 7,628 Ps. 18,935,757 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments).
Loan commitments and financial guarantee contracts
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 23,922 Ps. 1,719 Ps. 4,034 Ps. 29,675 IFRS 9 adoption (1) 13,381 3,085 (249) 16,217 Loss allowance as of January 1, 2018 – IFRS 9 37,303 4,804 3,785 45,892 Transfers: Transfer from stage 1 to stage 2 (2,350) 2,350 — — Transfer from stage 1 to stage 3 (2,167) — 2,167 — Transfer from stage 2 to stage 3 — (156) 156 — Transfer from stage 3 to stage 2 — 13 (13) — Transfer from stage 2 to stage 1 1,816 (1,816) — — Transfer from stage 3 to stage 1 26 — (26) — Net remeasurement of loss allowance 2,732 11,071 (5,009) 8,794 New loan commitments and financial guarantees issued 3,186 (1,909) 3,295 4,572 FX and other movements 169 1 — 170 Loss allowance as of December 31, 2018 Ps. 40,715 Ps. 14,358 Ps. 4,355 Ps. 59,428 Transfers: Transfer from stage 1 to stage 2 (529) 529 — — Transfer from stage 1 to stage 3 (172) — 172 — Transfer from stage 2 to stage 3 — (173) 173 — Transfer from stage 3 to stage 2 — — — — Transfer from stage 2 to stage 1 8,116 (8,116) — — Transfer from stage 3 to stage 1 3,582 — (3,582) — Net remeasurement of loss allowance (29,069) (4,528) (238) New loan commitments and financial guarantees issued 22,613 875 627 24,115 FX and other movements 253 — 1 254 Loss allowance as of December 31, 2019 Ps. 45,509 Ps. 2,945 Ps. 1,508 Ps. 49,962
Loan portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 1,227,363 Ps. 583,584 Ps. 3,807,534 Ps. 5,618,481 IFRS 9 adoption (1) 490,117 596,737 76,155 1,163,009 Loss allowance as of January 1, 2018 – IFRS 9 1,717,480 1,180,321 3,883,689 6,781,490 Transfers: Transfer from stage 1 to stage 2 (255,031) 255,031 — — Transfer from stage 1 to stage 3 (214,542) — 214,542 — Transfer from stage 2 to stage 3 — (631,932) 631,932 — Transfer from stage 3 to stage 2 — 107,331 (107,331) — Transfer from stage 2 to stage 1 314,668 (314,668) — — Transfer from stage 3 to stage 1 183,733 — (183,733) — Net remeasurement of loss allowance (3) (90,021) 746,773 3,194,573 3,851,325 New financial assets originated or purchased 1,011,984 156,320 153,761 1,322,065 Financial assets that have been derecognized (568,424) (177,729) (323,552) Unwind of discount (2) 32,674 (3,809) 353,118 381,983 FX and other movements 4,703 — 71,009 75,712 Entity deconsolidation — — 2,307 2,307 Write-offs (312,350) (120,592) (2,716,048) Loss allowance as of December 31, 2018 Ps. 1,824,874 Ps. 1,197,046 Ps. 5,174,267 Ps. 8,196,187 Transfers: Transfer from stage 1 to stage 2 (231,472) 231,472 — — Transfer from stage 1 to stage 3 (132,800) — 132,800 — Transfer from stage 2 to stage 3 — (567,849) 567,849 — Transfer from stage 3 to stage 2 — 104,502 (104,502) — Transfer from stage 2 to stage 1 323,445 (323,445) — — Transfer from stage 3 to stage 1 114,968 — (114,968) — Net remeasurement of loss allowance (3) (352,578) 632,102 3,696,083 3,975,607 New financial assets originated or purchased 659,037 119,690 203,482 982,209 Financial assets that have been derecognized (366,590) (241,128) (177,357) (785,075) Unwind of discount (2) 280 2,155 502,002 504,437 FX and other movements 52,724 49,148 (72,493) 29,379 Write-offs (38,750) (44,961) (4,633,236) Loss allowance as of December 31, 2019 Ps. 1,853,138 Ps. 1,158,732 Ps. 5,173,927 Ps. 8,185,797 (1) Grupo Aval initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C). (2) The unwind of discount on Stage 3 financial assets is reported within "interest income" so that interest income is recognized on the amortized cost (after deducting the ECL allowance) (3) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31,2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 71,209 Ps. 23,388 Ps. 53,684 Ps. 148,281 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. (8,520) Ps. 1,997 Ps. 123 Ps. (6,400)
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 150,082,716 Ps. 8,263,660 Ps. 8,026,341 Ps. 166,372,717 Transfers: Transfer from stage 1 to stage 2 (11,834,692) 11,834,692 — — Transfer from stage 1 to stage 3 (2,023,042) — 2,023,042 — Transfer from stage 2 to stage 3 — (4,493,810) 4,493,810 — Transfer from stage 2 to stage 1 7,343,231 (7,343,231) — — Transfer from stage 3 to stage 2 — 761,405 (761,405) — Transfer from stage 3 to stage 1 621,006 — (621,006) — Increase in loan portfolio and borrowing costs 101,799,568 1,668,101 1,839,318 105,306,987 Decrease in loan portfolio and borrowing costs (91,600,857) (3,125,167) (2,502,517) (97,228,541) Increase-decrease in interest (411,754) 20,034 436,617 44,897 Increase-decrease in other receivables associated with loans 11,867 2,289 7,651 21,807 Write-offs (312,350) (120,592) (2,716,048) (3,148,990) Entity deconsolidation — — 2,019 2,019 FX and other movements 5,211,099 253,756 46,090 5,510,945 Total portfolio as of December 31, 2018 Ps. 158,886,792 Ps. 7,721,137 Ps. 10,273,912 Ps. 176,881,841 Transfers: Transfer from stage 1 to stage 2 (11,790,121) 11,790,121 — — Transfer from stage 1 to stage 3 (1,632,972) — 1,632,972 — Transfer from stage 2 to stage 3 — (4,150,773) 4,150,773 — Transfer from stage 2 to stage 1 6,281,477 (6,281,477) — — Transfer from stage 3 to stage 2 — 743,373 (743,373) — Transfer from stage 3 to stage 1 582,523 — (582,523) — Increase in loan portfolio and borrowing costs 122,342,873 1,060,008 2,542,813 125,945,694 Decrease in loan portfolio and borrowing costs (111,122,212) (2,838,645) (3,549,578) (117,510,435) Increase-decrease in interest 75,349 (20,355) 561,898 616,892 Increase-decrease in other receivables associated with loans 7,919 (534) 9,784 17,169 Write-offs (38,750) (44,961) (4,633,236) (4,716,947) FX and other movements 613,810 78,913 201,177 893,900 Total portfolio as of December 31, 2019 Ps. 164,206,688 Ps. 8,056,807 Ps. 9,864,619 Ps. 182,128,114
Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 492,561 Ps. 91,930 Ps. 2,074,831 Ps. 2,659,322 IFRS 9 adoption (1) 122,996 100,438 33,639 257,073 Loss allowance as of January 1, 2018 – IFRS 9 615,557 192,368 2,108,470 2,916,395 Transfers: Transfer from stage 1 to stage 2 (26,155) 26,155 — — Transfer from stage 1 to stage 3 (57,241) — 57,241 — Transfer from stage 2 to stage 3 — 141,368 — Transfer from stage 3 to stage 2 — 17,836 (17,836) — Transfer from stage 2 to stage 1 65,954 (65,954) — — Transfer from stage 3 to stage 1 30,590 — (30,590) — Net remeasurement of loss allowance (4) 153,621 1,013,822 1,016,637 New financial assets originated or purchased 419,719 37,317 68,127 525,163 Financial assets that have been derecognized (24,707) (123,509) (370,151) Unwind of discount (2) 31,974 (2,615) 239,515 268,874 FX and other movements 4,707 — 13,098 17,805 Write-offs (16,636) (2,020) (418,618) (437,274) Loss allowance as of December 31, 2018 Ps. 695,728 Ps. 190,633 Ps. 3,051,088 Ps. 3,937,449 Transfers: Transfer from stage 1 to stage 2 (35,269) 35,269 — — Transfer from stage 1 to stage 3 (22,792) — 22,792 — Transfer from stage 2 to stage 3 — (90,108) 90,108 — Transfer from stage 3 to stage 2 — 16,665 (16,665) — Transfer from stage 2 to stage 1 38,767 (38,767) — — Transfer from stage 3 to stage 1 17,627 — (17,627) — Net remeasurement of loss allowance (4) 84,562 1,282,741 1,204,664 New financial assets originated or purchased 315,737 22,634 99,731 438,102 Financial assets that have been derecognized (39,985) (150,245) (407,549) Unwind of discount (2) 280 2,136 368,303 370,719 FX and other movements 14,943 8,443 (26,379) (2,993) Write-offs (3) (2,224) (785) (1,798,053) (1,801,062) Loss allowance as of December 31, 2019 Ps. 642,839 Ps. 190,697 Ps. 2,905,794 Ps. 3,739,330 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative (2) The unwind of discount on Stage 3 financial assets is reported within "interest income" so that interest income is recognized (3) Includes write-offs of Electricaribe Ps. 804,292 and Tranzit Ps. 103,508. (4) December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 57,078 Ps. 12,301 Ps. 36,166 Ps. 105,545 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 34,411 Ps. (8,050) Ps. 16,362 Ps. 42,723 Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 82,949,511 Ps. 2,104,840 Ps. 4,722,249 Ps. 89,776,600 Transfers: Transfer from stage 1 to stage 2 (2,402,189) 2,402,189 — — Transfer from stage 1 to stage 3 (1,239,079) — 1,239,079 — Transfer from stage 2 to stage 3 — (1,347,289) 1,347,289 — Transfer from stage 2 to stage 1 1,267,680 (1,267,680) — — Transfer from stage 3 to stage 2 — 158,589 (158,589) — Transfer from stage 3 to stage 1 193,843 — (193,843) — Increase in loan portfolio and borrowing costs 61,745,704 376,146 483,805 62,605,655 Decrease in loan portfolio and borrowing costs (60,678,433) (798,958) (693,653) (62,171,044) Increase-decrease in interest (419,897) (7,241) 276,864 (150,274) Increase-decrease in other receivables associated with loans 3,025 733 1,065 4,823 Write-offs (16,636) (2,020) (418,618) (437,274) FX and other movements 2,814,940 44,303 62,296 2,921,539 Total portfolio as of December 31, 2018 Ps. 84,218,469 Ps. 1,663,612 Ps. 6,667,944 Ps. 92,550,025 Transfers: Transfer from stage 1 to stage 2 (3,007,313) 3,007,313 — — Transfer from stage 1 to stage 3 (971,916) — 971,916 — Transfer from stage 2 to stage 3 — (909,907) 909,907 — Transfer from stage 2 to stage 1 924,096 (924,096) — — Transfer from stage 3 to stage 2 — 148,025 (148,025) — Transfer from stage 3 to stage 1 212,841 — (212,841) — Increase in loan portfolio and borrowing costs 70,008,205 (156,035) 1,023,714 70,875,884 Decrease in loan portfolio and borrowing costs (68,610,454) (440,971) (2,051,193) (71,102,618) Increase-decrease in interest (18,016) (9,680) 383,393 355,697 Increase-decrease in other receivables associated with loans (2,697) (699) 1,998 (1,398) Write-offs (2,224) (785) (1,798,053) (1,801,062) FX and other movements 324,141 15,482 90,568 430,191 Total portfolio as of December 31, 2019 Ps. 83,075,132 Ps. 2,392,259 Ps. 5,839,328 Ps. 91,306,719
Loans to consumers
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 656,042 Ps. 446,698 Ps. 1,354,051 Ps. 2,456,791 IFRS 9 adoption (1) 336,656 426,136 32,986 795,778 Loss allowance as of January 1, 2018 – IFRS 9 992,698 872,834 1,387,037 3,252,569 Transfers: Transfer from stage 1 to stage 2 (209,235) 209,235 — — Transfer from stage 1 to stage 3 (149,571) — 149,571 — Transfer from stage 2 to stage 3 — (432,509) 432,509 — Transfer from stage 3 to stage 2 — 77,046 (77,046) — Transfer from stage 2 to stage 1 209,168 (209,168) — — Transfer from stage 3 to stage 1 137,887 - (137,887) — Net remeasurement of loss allowance (3) 78,253 518,410 1,855,935 2,452,598 New financial assets originated or purchased 543,690 113,235 75,181 732,106 Financial assets that have been derecognized (315,442) (139,703) (145,775) (600,920) Unwind of discount (2) 474 (514) 80,214 80,174 FX and other movements (7) — 52,807 52,800 Write-offs (289,525) (118,310) (2,119,181) (2,527,016) Loss allowance as of December 31, 2018 Ps. 998,390 Ps. 890,556 Ps. 1,553,365 Ps. 3,442,311 Transfers: Transfer from stage 1 to stage 2 (177,237) 177,237 — — Transfer from stage 1 to stage 3 (96,220) — 96,220 — Transfer from stage 2 to stage 3 — (423,340) 423,340 — Transfer from stage 3 to stage 2 — 73,246 (73,246) — Transfer from stage 2 to stage 1 248,331 (248,331) — — Transfer from stage 3 to stage 1 86,563 — (86,563) — Net remeasurement of loss allowance (3) (142,334) 491,096 2,186,645 2,535,407 New financial assets originated or purchased 299,809 92,985 68,464 461,258 Financial assets that have been derecognized (141,025) (192,886) (15,644) (349,555) Unwind of discount (2) — 19 89,525 89,544 FX and other movements 35,616 34,874 (32,483) 38,007 Write-offs (35,743) (43,805) (2,588,844) (2,668,392) Loss allowance as of December 31, 2019 Ps. 1,076,150 Ps. 851,651 Ps. 1,620,779 Ps. 3,548,580 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C). (2) (3) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31, 2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 9,044 Ps. 4,268 Ps. (2,890) Ps. 10,422 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. (51,642) Ps. 20,671 Ps. (7,473) Ps. (38,444)
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 43,867,292 Ps. 3,997,655 Ps. 2,291,183 Ps. 50,156,130 Transfers: Transfer from stage 1 to stage 2 (7,335,328) 7,335,328 — — Transfer from stage 1 to stage 3 (457,632) — 457,632 — Transfer from stage 2 to stage 3 — (2,585,329) 2,585,329 — Transfer from stage 2 to stage 1 4,071,520 (4,071,520) — — Transfer from stage 3 to stage 2 — 483,063 (483,063) — Transfer from stage 3 to stage 1 294,316 — (294,316) — Increase in loan portfolio and borrowing costs 33,889,281 1,237,315 1,274,414 36,401,010 Decrease in loan portfolio and borrowing costs (26,900,608) (2,021,809) (1,567,071) (30,489,488) Increase-decrease in interest 12,566 12,728 83,646 108,940 Increase-decrease in other receivables associated with loans 2,332 844 2,677 5,853 Write-offs (289,525) (118,310) (2,119,181) (2,527,016) FX and other movements 1,470,959 96,499 (22,306) 1,545,152 Total portfolio as of December 31, 2018 Ps. 48,625,173 Ps. 4,366,464 Ps. 2,208,944 Ps. 55,200,581 Transfers: Transfer from stage 1 to stage 2 (6,677,240) 6,677,240 — — Transfer from stage 1 to stage 3 (378,855) — 378,855 — Transfer from stage 2 to stage 3 — (2,662,543) 2,662,543 — Transfer from stage 2 to stage 1 3,963,436 (3,963,436) — — Transfer from stage 3 to stage 2 — 472,001 (472,001) — Transfer from stage 3 to stage 1 222,132 — (222,132) — Increase in loan portfolio and borrowing costs 44,592,760 1,068,552 1,388,079 47,049,391 Decrease in loan portfolio and borrowing costs (37,145,214) (2,058,852) (1,208,318) (40,412,384) Increase-decrease in interest 78,352 (4,327) 122,797 196,822 Increase-decrease in other receivables associated with loans 2,870 (143) 3,746 6,473 Write-offs (35,743) (43,805) (2,588,844) (2,668,392) FX and other movements 73,657 42,397 99,384 215,438 Total portfolio as of December 31, 2019 Ps. 53,321,328 Ps. 3,893,548 Ps. 2,373,053 Ps. 59,587,929
Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 14,501 Ps. 20,032 Ps. 96,349 Ps. IFRS 9 adoption (1) 6,227 41,690 8,279 56,196 Loss allowance as of January 1, 2018 – IFRS 9 20,728 61,722 104,628 Transfers: Transfer from stage 1 to stage 2 (7,711) 7,711 — — Transfer from stage 1 to stage 3 (1,558) — 1,558 — Transfer from stage 2 to stage 3 — (21,022) 21,022 — Transfer from stage 3 to stage 2 — 6,872 (6,872) — Transfer from stage 2 to stage 1 20,072 (20,072) — — Transfer from stage 3 to stage 1 2,749 — (2,749) — Net remeasurement of loss allowance (3) (3,510) 45,162 73,385 New financial assets originated or purchased 8,999 2,047 47 11,093 Financial assets that have been derecognized (4,131) (8,742) (6,386) (19,259) Unwind of discount (2) 110 (143) 4,581 4,548 FX and other movements — — 4,946 4,946 Write-offs (561) (74) (45,565) (46,200) Loss allowance balance as of December 31, 2018 35,187 73,461 148,595 Transfers: Transfer from stage 1 to stage 2 (4,605) 4,605 — — Transfer from stage 1 to stage 3 (693) — 693 — Transfer from stage 2 to stage 3 — (22,042) 22,042 — Transfer from stage 3 to stage 2 — 6,965 (6,965) — Transfer from stage 2 to stage 1 21,080 (21,080) — — Transfer from stage 3 to stage 1 3,837 — (3,837) — Net remeasurement of loss allowance (3) (19,923) 32,334 109,804 New financial assets originated or purchased 8,995 183 (164) 9,014 Financial assets that have been derecognized (709) (6,683) (3,265) (10,657) Unwind of discount (2) — — 6,340 6,340 FX and other movements 805 5,502 (11,820) (5,513) Write-offs (482) (136) (71,787) (72,405) Loss allowance as of December 31, 2019 Ps. 43,492 Ps. 73,109 Ps. 189,636 Ps. (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C) (2) The unwind of discount on Stage 3 financial assets is reported within "interest income" so that interest income is recognized on the amortized cost (after deducting the ECL allowance) (3) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31, 2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 2,064 Ps. 5,674 Ps. 21,527 Ps. 29,265 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 2,543 Ps. (4,263) Ps. (8,823) Ps. (10,543)
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 13,260,166 Ps. 1,577,671 Ps. 263,162 Ps. 15,100,999 Transfers: Transfer from stage 1 to stage 2 (1,662,941) 1,662,941 — — Transfer from stage 1 to stage 3 (9,776) — 9,776 — Transfer from stage 2 to stage 3 — (362,596) 362,596 — Transfer from stage 2 to stage 1 1,630,238 (1,630,238) — — Transfer from stage 3 to stage 2 — 94,175 (94,175) — Transfer from stage 3 to stage 1 66,713 — (66,713) — Increase in loan portfolio and borrowing costs 3,136,074 32,904 3,571 3,172,549 Decrease in loan portfolio and borrowing costs (1,596,155) (158,726) (66,079) (1,820,960) Increase-decrease in interest 1,142 7,857 5,342 14,341 Increase-decrease in other receivables associated with loans 19 28 104 151 Write-offs (561) (74) (45,565) (46,200) FX and other movements 741,139 111,799 5,544 858,482 Total portfolio as of December 31, 2018 Ps. 15,566,058 Ps. 1,335,741 Ps. 377,563 Ps. 17,279,362 Transfers: Transfer from stage 1 to stage 2 (1,571,950) 1,571,950 — — Transfer from stage 1 to stage 3 (13,719) — 13,719 — Transfer from stage 2 to stage 3 — (439,320) 439,320 — Transfer from stage 2 to stage 1 1,157,647 (1,157,647) — — Transfer from stage 3 to stage 2 — 96,627 (96,627) — Transfer from stage 3 to stage 1 100,956 — (100,956) — Increase in loan portfolio and borrowing costs 3,931,507 74,769 57,746 4,064,022 Decrease in loan portfolio and borrowing costs (2,473,480) (192,589) (63,058) (2,729,127) Increase-decrease in interest 11,151 (7,594) (16,506) (12,949) Increase-decrease in other receivables associated with loans 78 195 220 493 Write-offs (482) (136) (71,787) (72,405) FX and other movements 104,234 17,163 10,596 131,993 Total portfolio as of December 31, 2019 Ps. 16,812,000 Ps. 1,299,159 Ps. 550,230 Ps. 18,661,389
Loan Microcredit portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 21,421 Ps. 7,477 Ps. 45,269 Ps. 74,167 IFRS 9 adoption (1) 525 10,591 2 11,118 Loss allowance as of January 1, 2018 – IFRS 9 21,946 18,068 45,271 85,285 Transfers: Transfer from stage 1 to stage 2 (8,298) 8,298 — — Transfer from stage 1 to stage 3 (2,599) — 2,599 — Transfer from stage 2 to stage 3 — (30,052) 30,052 — Transfer from stage 3 to stage 2 — 1,961 (1,961) — Transfer from stage 2 to stage 1 6,305 (6,305) — — Transfer from stage 3 to stage 1 6,062 — (6,062) — Net remeasurement of loss allowance (3) (8,285) 20,392 9,625 21,732 New financial assets originated or purchased 16,095 626 — 16,721 Financial assets that have been derecognized (2,397) (600) (861) (3,858) Unwind of discount (2) 103 (381) 8,266 7,988 Write-offs (5,584) (45) (34,062) Loss allowance balance as of December 31, 2018 Ps. 23,348 Ps. 11,962 Ps. 52,867 Ps. 88,177 Transfers: Transfer from stage 1 to stage 2 (9,148) 9,148 — — Transfer from stage 1 to stage 3 (3,145) — 3,145 — Transfer from stage 2 to stage 3 — (23,678) 23,678 — Transfer from stage 3 to stage 2 — 2,539 (2,539) — Transfer from stage 2 to stage 1 5,854 (5,854) — — Transfer from stage 3 to stage 1 945 — (945) — Net remeasurement of loss allowance (3) (3,610) 17,500 20,107 33,997 New financial assets originated or purchased 13,021 651 7 13,679 Financial assets that have been derecognized (2,348) (266) (122) (2,736) Unwind of discount (2) — — 10,456 10,456 Write-offs (123) (83) (53,542) Loss allowance as of December 31, 2019 Ps. 24,794 Ps. 11,919 Ps. 53,112 Ps. 89,825 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is no restated. See Notes 2 (2.4) (C) (2) The unwind of discount on Stage 3 financial assets is reported within "interest income" so that interest income is recognized on the amortized cost (after deducting the ECL allowance) (3) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31, 2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 1,207 Ps. (188) Ps. (531) Ps. 488 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 541 Ps. (5,338) Ps. 47 Ps. (4,750)
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 333,346 Ps. 28,381 Ps. 47,961 Ps. 409,688 Transfers: Transfer from stage 1 to stage 2 (57,561) 57,561 — — Transfer from stage 1 to stage 3 (14,127) — 14,127 — Transfer from stage 2 to stage 3 — (46,429) 46,429 — Transfer from stage 2 to stage 1 14,370 (14,370) — — Transfer from stage 3 to stage 2 — 4,213 (4,213) — Transfer from stage 3 to stage 1 9,506 — (9,506) — Increase in loan portfolio and borrowing costs 302,414 1,938 23,729 328,081 Decrease in loan portfolio and borrowing costs (240,686) (6,667) (38,132) (285,485) Increase-decrease in interest 3,044 792 9,268 13,104 Write-offs (5,584) (45) (34,062) (39,691) Total portfolio as of December 31, 2018 Ps. 344,722 Ps. 25,374 Ps. 55,601 Ps. 425,697 Transfers: Transfer from stage 1 to stage 2 (60,329) 60,329 — — Transfer from stage 1 to stage 3 (15,698) — 15,698 — Transfer from stage 2 to stage 3 — (47,227) 47,227 — Transfer from stage 2 to stage 1 13,553 (13,553) — — Transfer from stage 3 to stage 2 — 4,530 (4,530) — Transfer from stage 3 to stage 1 1,795 — (1,795) — Increase in loan portfolio and borrowing costs 301,822 2,239 36,150 340,211 Decrease in loan portfolio and borrowing costs (258,304) (7,537) (46,651) (312,492) Increase-decrease in interest 2,484 729 7,439 10,652 Write-offs (123) (83) (53,542) (53,748) Total portfolio as of December 31, 2019 Ps. 329,922 Ps. 24,801 Ps. 55,597 Ps. 410,320
Financial leasing
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. 42,838 Ps. 17,447 Ps. 237,034 Ps. 297,319 IFRS 9 adoption (1) 23,713 17,882 1,249 42,844 Loss allowance as of January 1, 2018 – IFRS 9 66,551 35,329 238,283 340,163 Transfers: Transfer from stage 1 to stage 2 (3,632) 3,632 — — Transfer from stage 1 to stage 3 (3,573) — 3,573 — Transfer from stage 2 to stage 3 — (6,981) 6,981 — Transfer from stage 3 to stage 2 — 3,616 (3,616) — Transfer from stage 2 to stage 1 13,169 (13,169) — — Transfer from stage 3 to stage 1 6,445 — (6,445) — Net remeasurement of loss allowance (3) (5,673) 9,188 241,806 245,321 New financial assets originated or purchased 23,481 3,095 10,406 36,982 Financial assets that have been derecognized (24,519) (3,977) (47,021) (75,517) Unwind of discount (2) 13 (156) 20,542 20,399 FX and other movements 3 — 158 161 Entity deconsolidation — — 2,307 2,307 Write-offs (44) (143) (98,622) (98,809) Loss allowance balance as of December 31, 2018 Ps. 72,221 Ps. 30,434 Ps. 368,352 Ps. 471,007 Transfers: Transfer from stage 1 to stage 2 (5,213) 5,213 — — Transfer from stage 1 to stage 3 (9,950) — 9,950 — Transfer from stage 2 to stage 3 — (8,681) 8,681 — Transfer from stage 3 to stage 2 — 5,087 (5,087) — Transfer from stage 2 to stage 1 9,413 (9,413) — — Transfer from stage 3 to stage 1 5,996 — (5,996) — Net remeasurement of loss allowance (3) (24,072) 6,610 96,786 79,324 New financial assets originated or purchased 21,475 3,237 35,444 60,156 Financial assets that have been derecognized (5,189) (1,308) (8,081) (14,578) Unwind of discount (2) — — 27,378 27,378 FX and other movements 1,360 329 (1,811) (122) Write-offs (178) (152) Loss allowance as of December 31, 2019 Ps. 65,863 Ps. 31,356 Ps. 404,606 Ps. 501,825 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C) (2) The unwind of discount on Stage 3 financial assets is reported within "interest income" so that interest income is recognized on the amortized cost (after deducting the ECL allowance) (3) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31, 2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 1,816 Ps. 1,333 Ps. (588) Ps. 2,561 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 5,627 Ps. (1,023) Ps. 10 Ps. 4,614
Disclosure of Changes in Gross Carrying Amount [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Total portfolio as of December 31, 2017 Ps. 9,672,401 Ps. 555,113 Ps. 701,786 Ps. 10,929,300 Transfers: Transfer from stage 1 to stage 2 (376,673) 376,673 — — Transfer from stage 1 to stage 3 (302,428) — 302,428 — Transfer from stage 2 to stage 3 — (152,167) 152,167 — Transfer from stage 2 to stage 1 359,423 (359,423) — — Transfer from stage 3 to stage 2 — 21,365 (21,365) — Transfer from stage 3 to stage 1 56,628 — (56,628) — Increase in loan portfolio and borrowing costs 2,726,095 19,798 53,799 2,799,692 Decrease in loan portfolio and borrowing costs (2,184,975) (139,007) (137,582) (2,461,564) Increase-decrease in interest (8,609) 5,898 61,497 58,786 Increase-decrease in other receivables associated with loans 6,491 684 3,805 10,980 Write-offs (44) (143) (98,622) (98,809) Entity deconsolidation — — 2,019 2,019 FX and other movements 184,061 1,155 556 185,772 Total portfolio as of December 31, 2018 Ps. 10,132,370 Ps. 329,946 Ps. 963,860 Ps. 11,426,176 Transfers: Transfer from stage 1 to stage 2 (473,289) 473,289 — — Transfer from stage 1 to stage 3 (252,784) — 252,784 — Transfer from stage 2 to stage 3 — (91,776) 91,776 — Transfer from stage 2 to stage 1 222,745 (222,745) — — Transfer from stage 3 to stage 2 — 22,190 (22,190) — Transfer from stage 3 to stage 1 44,799 — (44,799) — Increase in loan portfolio and borrowing costs 3,508,579 70,483 37,124 3,616,186 Decrease in loan portfolio and borrowing costs (2,634,760) (138,696) (180,358) (2,953,814) Increase-decrease in interest 1,378 517 64,775 66,670 Increase-decrease in other receivables associated with loans 7,668 113 3,820 11,601 Write-offs (178) (152) (121,010) (121,340) FX and other movements 111,778 3,871 629 116,278 Total portfolio as of December 31, 2019 Ps. 10,668,306 Ps. 447,040 Ps. 1,046,411 Ps. 12,161,757
Trade receivables / other accounts receivable
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 4,328,028 Ps. — Ps. — Ps. 4,328,028 Financial entities 391,482 — — 391,482 Total investment grade Ps. 4,719,510 Ps. — Ps. — Ps. 4,719,510 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 2,631,235 Ps. — Ps. — Ps. 2,631,235 Financial entities 340,265 — — 340,265 Total investment grade Ps. 2,971,500 Ps. — Ps. — Ps. 2,971,500 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio).
Trade receivables / other accounts receivable | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	e) December 31, 2019 December 31, 2018 Investment grade Sovereign (*) Ps. 2,706,030 Ps. 2,488,414 Total investment grade Ps. 2,706,030 Ps. 2,488,414 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). f)
Other accounts receivable, simplified approach
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Loss allowance Balance as of December 31, 2017- IAS 39 Ps. 137,431 IFRS 9 adoption (1) 9,338 Loss allowance as of January 1, 2018 – IFRS 9 Ps. 146,769 Entity deconsolidation 6,731 Provision charged to profit or loss 65,230 Recovery for partial payments from the clients (12,373) Write-offs (47,309) Exchange gains (losses) in foreign currency 255 Loss allowance as of December 31, 2018 Ps. 159,303 Entity deconsolidation (56) Provision charged to profit or loss 35,506 Recovery for partial payments from the clients (11,129) Write-offs (13,097) Approach change 2,595 Exchange gains (losses) in foreign currency 185 Loss allowance as of December 31, 2019 Ps. 173,307
Debt securities | Financial assets at amortised cost, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	d) December 31, 2019 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 23,043 Ps. — Ps. — Ps. 23,043 Other public entities (**) 3,029,802 — — 3,029,802 Financial entities 1,017 — — 1,017 Total investment grade Ps. 3,053,862 Ps. — Ps. — Ps. 3,053,862 Ps. 3,053,862 Ps. — Ps. — Ps. 3,053,862 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments). December 31, 2018 Stage 1 Stage 2 Stage 3 Total Investment grade Sovereign (*) Ps. 32,321 Ps. — Ps. — Ps. 32,321 Other public entities (**) 2,931,172 — — 2,931,172 Financial entities 9,123 — — 9,123 Total investment grade Ps. 2,972,616 Ps. — Ps. — Ps. 2,972,616 Ps. 2,972,616 Ps. — Ps. — Ps. 2,972,616 (*) Sovereign credit rating is considered as the risk of the Treasury issuer or a similar agency (government debt portfolio). (**) Derived from operations with government entities; including public administrations in general (includes regional and local governments).
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. — Ps. — Ps. — Ps. — IFRS 9 adoption (1) 672 — — 672 Loss allowance as of January 1, 2018 – IFRS 9 Ps. 672 Ps. — Ps. — Ps. 672 Net remeasurement of loss allowance (2) (90) — — (90) New financial assets originated or purchased 59 — — 59 Financial assets that have been derecognized (667) — — (667) FX and other movements 97 — — 97 Loss allowance balance as of December 31, 2018 Ps. 71 Ps. — Ps. — Ps. 71 Net remeasurement of loss allowance (2) (615) — — (615) New financial assets originated or purchased 1,353 — — 1,353 Financial assets that have been derecognized (64) — — (64) FX and other movements (8) — — (8) Loss allowance as of December 31, 2019 Ps. 737 Ps. — Ps. — Ps. 737 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C) (2) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31,2019 and the loan portfolio as of December 31,2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 211 Ps. — Ps. — Ps. 211 December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 3 Ps. — Ps. — Ps. 3
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Reconciliation of Loss Allowance [Table Text Block]	Stage 2 Lifetime Stage 3 Stage 1 ECL not Lifetime 12-month credit- ECL credit- ECL impaired impaired Total Loss allowance balance as of December 31, 2017- IAS 39 Ps. — Ps. — Ps. 71,708 Ps. 71,708 IFRS 9 adoption (1) 18,665 31,714 5,819 56,198 Loss allowance as of January 1, 2018 – IFRS 9 Ps. 18,665 Ps. 31,714 Ps. 77,527 Ps. 127,906 Transfers: Transfer from stage 1 to stage 2 (272) 272 — — Net remeasurement of loss allowance (2) (2,361) (28) 18,158 15,769 New financial assets originated or purchased 12,018 450 — 12,468 Financial assets that have been derecognized (7,937) (2,688) (49,421) (60,046) FX and other movements 644 2,260 16 2,920 Loss allowance balance as of December 31, 2018 Ps. 20,757 Ps. 31,980 Ps. 46,280 Ps. 99,017 Net remeasurement of loss allowance (2) (7,696) (3,564) (55) (11,315) New financial assets originated or purchased 34,575 — — 34,575 Financial assets that have been derecognized (3,729) (27,440) (45,602) (76,771) FX and other movements (9,827) (976) (623) (11,426) Loss allowance as of December 31, 2019 Ps. 34,080 Ps. — Ps. — Ps. 34,080 (1) Grupo Aval has initially adopted IFRS9 as of January 1,2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C) (2) This amount includes impact of the measurement of ECL due to changes made in PDs/LGDs/EADs and changes made to model assumptions and methodologies from the opening to the closing balance. The following table shows the impact by stage estimated using all parameters as of December 31, 2018 versus parameters as of December 31, 2019 and the loan portfolio as of December 31, 2019. December 31, 2019 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. (1,709) Ps. — Ps. — Ps. (1,709) December 31, 2018 Stage 2 Stage 3 Stage 1 Lifetime ECL not Lifetime ECL 12-month ECL credit-impaired credit-impaired Total Ps. 198 Ps. — Ps. — Ps. 198
Disclosure of Detailed Information about Investment in Debt Securities by Sector [Table Text Block]	December 31, December 31, 2019 2018 In Colombian Pesos Securities issued or secured by Colombian Government Ps. 9,834,271 Ps. 9,256,358 Securities issued or secured by other Colombian Government entities 260,213 194,933 Securities issued or secured by other financial entities 495,863 388,019 Securities issued or secured by non-financial sector entities 25,733 27,708 Others 50,690 — Ps. 10,666,770 Ps. 9,867,018 In foreign currency Securities issued or secured by Colombian Government 1,809,671 1,269,416 Securities issued or secured by other Colombian Government entities 205,465 302,701 Securities issued or secured by foreign Governments 4,997,430 3,015,556 Securities issued or secured by central banks 970,095 1,131,740 Securities issued or secured by other financial entities 2,559,062 2,920,462 Securities issued or secured by non-financial sector entities 9,107 182,232 Others 391,392 246,632 Ps. 10,942,222 Ps. 9,068,739 Total debt securities at FVOCI Ps. 21,608,992 Ps. 18,935,757
Derivatives
Disclosure Of Financial Risk Management Explanatory [Line Items]
Disclosure of Detailed information on Credit Worthiness [Text Block]	Credit worthiness December 31, 2019 December 31, 2018 Investment grade Ps. 734,959 Ps. 755,218 Speculative 21,037 9,926 Without grade or not available 328,036 33,680 Total Ps. 1,084,032 Ps. 798,824

ESTIMATION OF FAIR VALUE (Table

ESTIMATION OF FAIR VALUE (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Estimations of Fair Value [Line Items]
Disclosure of Detailed Information About Sensitivity Analysis of Changes on Assumptions Related to Investments Classified as Equity Instruments at FVOCI [Text Block]	Favorable Unfavorable Methods and Variables Variation impact impact Comparable multiples / Recent transaction price EBITDA Number of times +/-1 x Ps. 2,860 Ps. (2,865) Adjusted net Asset Value Most relevant variable in assets +/-10% 331 (287) Adjusted discounted cash flow Growth in residual values after 5 years +/-1% 303 (270) +/-30 bp 220 (223) Income +/-1% 858 (1,017) +/- 1% anual 371 (378) Discount rates +/- 50 bp 604 (607) Discount interest rates +/- 50 bp 648 (639) Ps. 6,195 Ps. (6,286)
Disclosure of detailed information about sensitivity analysis of the assumptions used by Promigas and its subsidiaries in the calculation of fair value of unconditional transfer rights of gas pipelines to Government entities [Text Block]	December 31, 2019 December 31, 2018 Variable +100 bps -100 bps +100 bps -100 bps WACC Ps. (637,556) Ps. 979,942 Ps. (637,463) Ps. 979,778 Perpetuity growth rate (*) 550,652 (387,750) 550,567 (387,696)
Disclosure of detailed information about Yield per hectare Based on the crop composition and the planting year of the different clones [Text Block]	Tons of rubber per Year hectare per year Year 7 0.60 Year 8 0.90 Year 9 1.40 Year 10 and other 1.90
Disclosure of detailed information about Yield per hectare Based on the crop composition and the planting year of the crops [Text Block]	Tons of fresh fruit Year per hectare 0 to 3 — 4 4 5 10 6 12 7 22 7 to 18 22 More than 18 36 Weighted average 18
Disclosure of detailed information about the oil extraction rate that defines the amount of crude palm oil that is produced [Text Block]	Year Extraction Rate (%) 0 to 3 19 4 23 5 23 6 23 7 23 7 to 18 23 More than 18 21 Weighted average 23
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [text block]	The following is the summary of Promigas and its subsidiaries open cash flow hedges: December 31, 2019 December 31, 2018 Income in Thousands of USD dollars forecasted 92,611 120,265 Notional amount contracts forward Thousands of USD 92,611 120,265 % hedged 100 % 100 % Fair value in Colombian pesos (874) (13,414) # of contracts 158 1,470
Disclosure of detailed information about transfer of fair value between level 1 and 2 [Text Block]	December 31, 2019 Investments in debt Investments in debt securities at FVTPL securities at FVOCI Transfers between: Transfers between: Level 2 to 1 Level 1 to 2 Level 2 to 1 Level 1 to 2 Securities issued or secured by Colombian Government Ps. — Ps. — Ps. 72,451 Ps. 591,093 Securities issued or secured by other Colombian Government entities — 1 — 38,324 Securities issued or secured by other financial entities — — 3,301 119,271 Ps. — Ps. 1 Ps. 75,752 Ps. 748,688 December 31, 2018 Investments in debt Investments in debt securities at FVTPL securities at FVOCI Transfers between: Transfers between: Level 2 to 1 Level 1 to 2 Level 2 to 1 Level 1 to 2 Securities issued or secured by Colombian Government Ps. — Ps. — Ps. 17,668 Ps. 14,081 Securities issued or secured by other Colombian Government entities — — 229,202 — Securities issued or secured by other financial entities — — — 189,013 Ps. — Ps. — Ps. 246,870 Ps. 203,094
Disclosure of detailed information about Changes in Level 3 Fair-Value Category [Text Block]	Financial assets Financial assets in in debt Equity concession Biological Investment securities instruments arrangements assets properties December 31, 2016 Ps. 27,377 Ps. — Ps. 2,072,674 Ps. 48,002 Ps. 610,188 Valuation adjustment with an effect on income 765 — 209,937 13,503 46,675 Valuation adjustments with an effect on OCI (8,540) — — — — Transfers to non-current assets held for sale — — — — 101,469 Reclassification — 25,341 — — (30,143) Additions — — — 24,409 84,036 Sales / redemptions — — — (19,775) (28,431) December 31, 2017 Ps. 19,602 Ps. 25,341 Ps. 2,282,611 Ps. 66,139 Ps. 783,794 Adoption IFRS 9 (1) — 102,214 — — — Valuation adjustment with an effect on income (5,119) 9,207 205,803 20,606 39,415 Valuation adjustments with an effect on OCI — 1,426 — — — Transfers from non-current assets held for sale — — — — 19,719 Reclassification — 25,989 — (96) 10,780 Additions — (*) 396,136 — 20,900 61,300 Sales / redemptions (750) — — (23,343) (78,684) December 31, 2018 Ps. 13,733 Ps. 560,313 Ps. 2,488,414 Ps. 84,206 Ps. 836,324 Valuation adjustment with an effect on income (3,018) 18,721 217,616 18,914 19,597 Valuation adjustments with an effect on OCI — 3,101 — — 5,288 Transfers from non-current assets held for sale — — — — 21,722 Reclassification — — — — (2,078) Additions — 238 — 20,559 116,702 Sales / redemptions (613) (74) — (18,822) (68,989) December 31, 2019 Ps. 10,102 Ps. 582,299 Ps. 2,706,030 Ps. 104,857 Ps. 928,566 (*) Includes investment in NEXUS Real Estate Capital Funds by Banco de Bogota of Ps. 330,350, Banco Popular of Ps.24,222, Alpopular of Ps. 41,070 and Fiduciaria Popular of Ps.494 (1) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See note 2(2.4 (C)).
Disclosure of detailed information about financial assets and liabilities accounted at amortized cost and valued at fair value only for purposes of this disclosure [Text Block]	December 31, 2019 December 31, 2018 Carrying Fair Value Carrying Fair Value Amount Estimate Amount Estimate Assets Investments in debt securities at amortized cost (1) Ps. 3,053,862 Ps. 3,031,355 Ps. 2,972,616 Ps. 2,984,973 Credit portfolio at amortized cost (2) 173,942,317 183,308,411 168,685,654 176,228,181 Total financial assets Ps. 176,996,179 Ps. 186,339,766 Ps. 171,658,270 Ps. 179,213,154 Liabilities Customer deposits (3) Ps. 175,491,421 Ps. 176,310,606 Ps. 164,359,451 Ps. 164,682,493 Financial obligations (4) 54,844,576 56,116,678 51,211,990 51,811,778 Total financial liabilities Ps. 230,335,997 Ps. 232,427,284 Ps. 215,571,441 Ps. 216,494,271 (1) Financial assets at amortized cost Fair value of fixed income investments at amortized cost was determined using the dirty price given by the price supplier, securities in an active market and with a market price for the day of the valuation are classified as level 1; securities with no active market and/or with an estimated price (present value of the flows of a security, discounted with the reference rate and the corresponding margin) given by the supplier are classified as level 2. (2) Credit portfolio at amortized cost For credit portfolio at amortized cost, the fair value was determined using discounted cash flows models at the interest rates offered by banks for granting new loans, taking into account the credit risk and its maturity; the process of valuation is deemed as level 3. Accounts receivable and payable are classified as short-term assets and liabilities; in consequence, their fair value is similar to their book value. (3) Customer deposits The fair value of demand deposits is equal to their carrying value. For fixed-term deposits with maturities of less than 180 days, their fair value is deemed equal to their carrying value. For fixed-term deposits with maturities of more than 180 days, their fair value was estimated using the carrying discounted cash flow models and the interest rates offered by banks in accordance with their maturity. This is considered as a level 2 valuation. (4) Financial obligations For financial liabilities and other short-term liabilities, the carrying value was considered to be similar to its fair value. The fair value of .
Rubber Plantation
Disclosure Of Estimations of Fair Value [Line Items]
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [text block]	TSR20 reference price Change in fiscal year- Value of the biological Profits USD/ton end price asset before taxes 1,619 5 % 61,736 10,550 Dec-19 1,542 Baseline scenario 57,698 6,513 1,465 (5) % 53,660 2,475 1,597 5 % 43,609 4,241 Dec-18 1,521 Baseline scenario 41,533 2,164 1,445 (5) % 39,456 88
African Palm Plantation
Disclosure Of Estimations of Fair Value [Line Items]
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [text block]	CPO reference price Change in fiscal year- Value of the biological Profits USD/ton end price asset before taxes 725 5 % 35,990 582 Dec-19 690 Baseline scenario 32,509 (2,900) 656 (5) % 29,027 (6,382) 705 5 % 31,272 (7,792) Dec-18 671 Baseline scenario 29,783 (9,281) 638 (5) % 28,293 (10,770)
Recurring fair value measurement
Disclosure Of Estimations of Fair Value [Line Items]
Disclosure Of Fair Value Measurement Of Assets and liabilities [Text Block]	December 31, 2019 Level 1 Level 2 Level 3 Total Assets Trading investments Securities issued or secured by Colombian Government Ps. 1,503,708 Ps. 922,052 Ps. — Ps. 2,425,760 Securities issued or secured by other Colombian Government entities — 175,794 — 175,794 Securities issued or secured by foreign Governments 3,220 136,314 — 139,534 Securities issued or secured by central banks — 13,966 — 13,966 Securities issued or secured by other financial entities 33,179 1,817,243 — 1,850,422 Securities issued or secured by non-financial sector entities — 33,942 — 33,942 Others — 33,695 — 33,695 Total trading investments Ps. 1,540,107 Ps. 3,133,006 Ps. — Ps. 4,673,113 Investments in debt securities at fair value through profit or loss Others — — 10,102 10,102 Total investments in debt securities at fair value through profit or loss Ps. 1,540,107 Ps. 3,133,006 Ps. 10,102 Ps. 4,683,215 Investments in debt securities at fair value through OCI Securities issued or secured by Colombian Government 7,923,409 3,720,533 — 11,643,942 Securities issued or secured by other Colombian Government entities 191,994 273,684 — 465,678 Securities issued or secured by foreign Governments 9,954 4,987,476 — 4,997,430 Securities issued or secured by central banks — 970,095 — 970,095 Securities issued or secured by other financial entities 237,887 2,817,038 — 3,054,925 Securities issued or secured by non-financial sector entities — 34,840 — 34,840 Others — 442,082 — 442,082 Total investments in debt securities at fair value through OCI Ps. 8,363,244 Ps. 13,245,748 Ps. — Ps. 21,608,992 Total investments in debt securities Ps. 9,903,351 Ps. 16,378,754 Ps. 10,102 Ps. 26,292,207 Equity securities Trading equity securities 1,679 3,046,048 475,394 3,523,121 Investments in equity through OCI 1,174,959 46,228 106,905 1,328,092 Total equity securities Ps. 1,176,638 Ps. 3,092,276 Ps. 582,299 Ps. 4,851,213 Held for trading derivatives Currency forward — 765,166 — 765,166 Debt securities forward — 253 — 253 Interest rate swap — 73,481 — 73,481 Currency swap — 34,682 — 34,682 Currency options — 43,852 — 43,852 Total held for trading derivatives Ps. — Ps. 917,434 Ps. — Ps. 917,434 Hedging derivatives Currency forward — 166,598 — 166,598 Total hedging derivatives Ps. — Ps. 166,598 Ps. — Ps. 166,598 Other account receivables Financial assets in concession contracts — — 2,706,030 2,706,030 Total other account receivables designated at fair value Ps. — Ps. — Ps. 2,706,030 Ps. 2,706,030 Non- financial assets Biological assets — — 104,857 104,857 Investment properties — — 928,566 928,566 Total non- financial assets Ps. — Ps. — Ps. 1,033,423 Ps. 1,033,423 Total assets at fair value on recurring basis Ps. 11,079,989 Ps. 20,555,062 Ps. 4,331,854 Ps. 35,966,905 Liabilities Trading derivatives Currency forward — 815,393 — 815,393 Debt securities forward — 574 — 574 Debt securities futures 52 — — 52 Interest rate swap — 64,500 — 64,500 Currency swap — 31,982 — 31,982 Currency options — 49,937 — 49,937 Total trading derivatives Ps. 52 Ps. 962,386 Ps. — Ps. 962,438 Hedging derivatives Currency forward — 90,726 — 90,726 Interest rate swap — 3,572 — 3,572 Total hedging derivatives Ps. — Ps. 94,298 Ps. — Ps. 94,298 Total liabilities at fair value on recurring basis Ps. 52 Ps. 1,056,684 Ps. — Ps. 1,056,736 December 31, 2018 Level 1 Level 2 Level 3 Total Assets Trading investments Securities issued or secured by Colombian Government Ps. 2,109,574 Ps. 161,068 Ps. — Ps. 2,270,642 Securities issued or secured by other Colombian Government entities 19,606 108,940 — 128,546 Securities issued or secured by foreign Governments — 98,155 — 98,155 Securities issued or secured by central banks — 12,914 — 12,914 Securities issued or secured by other financial entities — 1,218,751 — 1,218,751 Securities issued or secured by non-financial sector entities — 29,122 — 29,122 Others — 4,848 — 4,848 Total trading investments Ps. 2,129,180 Ps. 1,633,798 Ps. — Ps. 3,762,978 Investments in debt securities at fair value through profit or loss Others — 17,523 13,733 31,256 Total investments in debt securities at fair value through profit or loss Ps. 2,129,180 Ps. 1,651,321 Ps. 13,733 Ps. 3,794,234 Investments in debt securities at fair value through OCI Securities issued or secured by Colombian Government 8,208,778 2,316,996 — 10,525,774 Securities issued or secured by other Colombian Government entities 232,312 265,323 — 497,635 Securities issued or secured by foreign Governments 91,315 2,924,241 — 3,015,556 Securities issued or secured by central banks — 1,131,740 — 1,131,740 Securities issued or secured by other financial entities 279,653 3,028,827 — 3,308,480 Securities issued or secured by non-financial sector entities — 209,940 — 209,940 Others — 246,632 — 246,632 Total investments in debt securities at fair value through OCI Ps. 8,812,058 Ps. 10,123,699 Ps. — Ps. 18,935,757 Total investments in debt securities Ps. 10,941,238 Ps. 11,775,020 Ps. 13,733 Ps. 22,729,991 Equity securities Trading equity securities 3,060 2,212,915 456,673 2,672,648 Investments in equity through OCI 935,737 51,224 103,640 1,090,601 Total equity securities Ps. 938,797 Ps. 2,264,139 Ps. 560,313 Ps. 3,763,249 Held for trading derivatives Currency forward — 616,116 1,683 617,799 Debt securities forward — 71 — 71 Interest rate swap — 43,181 — 43,181 Currency swap — 48,546 — 48,546 Currency options — 59,089 — 59,089 Total held for trading derivatives Ps. — Ps. 767,003 Ps. 1,683 Ps. 768,686 Hedging derivatives Currency forward — 30,138 — 30,138 Total hedging derivatives Ps. — Ps. 30,138 Ps. — Ps. 30,138 Other account receivables Financial assets in concession contracts — — 2,488,414 2,488,414 Total other account receivables designated at fair value Ps. — Ps. — Ps. 2,488,414 Ps. 2,488,414 Non- financial assets Biological assets — — 84,206 84,206 Investment properties — — 836,324 836,324 Total non- financial assets Ps. — Ps. — Ps. 920,530 Ps. 920,530 Total assets at fair value on recurring basis Ps. 11,880,035 Ps. 14,836,300 Ps. 3,984,673 Ps. 30,701,008 Liabilities Trading derivatives Currency forward — 583,242 5,779 589,021 Debt securities forward — 2,730 — 2,730 Debt securities futures 32 — — 32 Interest rate swap — 32,380 — 32,380 Currency swap — 148,378 — 148,378 Currency options — 38,764 — 38,764 Total trading derivatives Ps. 32 Ps. 805,494 Ps. 5,779 Ps. 811,305 Hedging derivatives Currency forward — 195,539 — 195,539 Total hedging derivatives Ps. — Ps. 195,539 Ps. — Ps. 195,539 Total liabilities at fair value on recurring basis Ps. 32 Ps. 1,001,033 Ps. 5,779 Ps. 1,006,844
Non-recurring fair value measurement
Disclosure Of Estimations of Fair Value [Line Items]
Disclosure Of Fair Value Measurement Of Assets and liabilities [Text Block]	Level 1 Level 2 Level 3 Total December 31, 2019 Impaired collateralized loans Ps. — Ps. — Ps. 870,110 Ps. 870,110 Non- current assets held for sale — — 206,193 206,193 Ps. — Ps. — Ps. 1,076,303 Ps. 1,076,303 Level 1 Level 2 Level 3 Total December 31, 2018 Impaired collateralized loans Ps. — Ps. — Ps. 896,257 Ps. 896,257 Non- current assets held for sale — — 186,714 186,714 Ps. — Ps. — Ps. 1,082,971 Ps. 1,082,971

CLASSIFICATION OF FINANCIAL A_2

CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2019
CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES
Schedule of reconciliation of gross between line items in the statement of financial position and categories of financial instruments	Mandatorily FVOCI – FVOCI – Total December 31, 2019 at debt equity Amortized carrying Assets Note FVTPL instruments instruments Cost amount Cash and cash equivalents 7 Ps. — Ps. — Ps. — Ps. 30,117,236 Ps. 30,117,236 Trading assets 8 9,113,668 — — — 9,113,668 Debt securities 4,673,113 — — — 4,673,113 Equity securities 3,523,121 — — — 3,523,121 Derivative assets 917,434 — — — 917,434 Investment securities 9 10,102 21,608,992 1,328,092 3,053,862 26,001,048 Measured at fair value 10,102 21,608,992 1,328,092 — 22,947,186 Measured at amortized cost — — — 3,053,862 3,053,862 Loans 11 — — — 182,128,114 182,128,114 Other accounts receivable 12 2,706,030 — — 9,282,734 11,988,764 Measured at fair value 2,706,030 — — — 2,706,030 Measured at amortized cost — — — 9,282,734 9,282,734 Hedging derivative assets 10 166,598 — — — 166,598 Total financial assets Ps. 11,996,398 Ps. 21,608,992 Ps. 1,328,092 Ps. 224,581,946 Ps. 259,515,428 Mandatorily FVOCI – FVOCI – Total at debt equity Amortized carrying Liabilities Note FVTPL instruments instruments Cost amount Trading liabilities Derivative liabilities 8 Ps. 962,438 Ps. — Ps. — Ps. — Ps. 962,438 Hedging derivative liabilities 10 94,298 — — — 94,298 Customer deposits 20 — — — 175,491,421 175,491,421 Financial obligations 21 — — — 54,844,576 54,844,576 Total financial liabilities Ps. 1,056,736 Ps. — Ps. — Ps. 230,335,997 Ps. 231,392,733 Mandatorily FVOCI – FVOCI – Total December 31, 2018 at debt equity Amortized carrying Assets Note FVTPL instruments instruments Cost amount Cash and cash equivalents 7 Ps. — Ps. — Ps. — Ps. 28,401,283 Ps. 28,401,283 Trading assets 8 7,204,312 — — — 7,204,312 Debt securities 3,762,978 — — — 3,762,978 Equity securities 2,672,648 — — — 2,672,648 Derivative assets 768,686 — — — 768,686 Investment securities 9 31,256 18,935,757 1,090,601 2,972,616 23,030,230 Measured at fair value 31,256 18,935,757 1,090,601 — 20,057,614 Measured at amortized cost — — — 2,972,616 2,972,616 Loans 11 — — — 176,881,841 176,881,841 Other accounts receivable 12 2,488,414 — — 7,069,120 9,557,534 Measured at fair value 2,488,414 — — — 2,488,414 Measured at amortized cost — — — 7,069,120 7,069,120 Hedging derivative assets 10 30,138 — — — 30,138 Total financial assets Ps. 9,754,120 Ps. 18,935,757 Ps. 1,090,601 Ps. 215,324,860 Ps. 245,105,338 Mandatorily FVOCI – FVOCI – Total at debt equity Amortized carrying Liabilities Note FVTPL instruments instruments Cost amount Trading liabilities Derivative liabilities 8 Ps. 811,305 Ps. — Ps. — Ps. — Ps. 811,305 Hedging derivative liabilities 10 195,539 — — — 195,539 Customer deposits 20 — — — 164,359,451 164,359,451 Financial obligations 21 — — — 51,211,990 51,211,990 Total financial liabilities Ps. 1,006,844 Ps. — Ps. — Ps. 215,571,441 Ps. 216,578,285

CASH AND CASH EQUIVALENTS (Tabl

CASH AND CASH EQUIVALENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of cash and cash equivalents [Abstract]
Disclosure of detailed information about cash and cash equivalents [Text Block]	December 31, 2019 December 31, 2018 In Colombian Pesos Cash Ps. 4,466,144 Ps. 4,489,637 Deposits in the Colombian central bank 4,755,515 3,794,412 Demand deposits in banks and other financial entities 266,964 559,181 Clearing houses 1,248 3,428 Investments in debt securities maturing in under three months 31,353 2,449 Cash held for specific purposes (1) 50,078 254,280 Ps. 9,571,302 Ps. 9,103,387 In foreign currency Cash 2,186,402 1,955,745 Demand deposits in banks and other financial entities 18,359,532 17,342,151 Ps. 20,545,934 Ps. 19,297,896 Total cash and cash equivalents Ps. 30,117,236 Ps. 28,401,283 (1) Grupo Aval has cash held for specific purpuses related to the collection of tolls in concessions.

TRADING ASSETS AND LIABILITIES

TRADING ASSETS AND LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2019
TRADING ASSETS AND LIABILITIES
Balances of trading asset and liabilities	Balances of trading asset and liabilities comprise the following as of December 31, 2019 and 2018: December 31, December 31, Note 2019 2018 Trading assets Debt securities 8.1 Ps. 4,673,113 Ps. 3,762,978 Equity securities 8.2 3,523,121 2,672,648 Derivative assets 8.3 917,434 768,686 Ps. 9,113,668 Ps. 7,204,312 Trading liabilities Derivative liabilities 8.3 962,438 811,305 Ps. 962,438 Ps. 811,305 Total trading assets and liabilities net Ps. 8,151,230 Ps. 6,393,007
Investments in debt securities at fair value through profit or loss held for trading	The following is the balance at December 31, 2019 and 2018. December 31, December 31, 2019 2018 Securities issued or secured by the Colombian Government Ps. 2,425,760 Ps. 2,270,642 Securities issued or secured by other Colombian Government entities 175,794 128,546 Securities issued or secured by foreign Governments 139,534 98,155 Securities issued or secured by central banks 13,966 12,914 Securities issued or secured by other financial entities 1,850,422 1,218,751 Securities issued or secured by non-financial sector entities 33,942 29,122 Others 33,695 4,848 Total trading debt securities Ps. 4,673,113 Ps. 3,762,978
Investments in equity securities at fair value through profit or loss held for trading	The following is the balance at December 31, 2019 and 2018. December 31, December 31, 2019 2018 In Colombian Pesos Corporate stock Ps. 1,679 Ps. 3,060 Investment funds (1) 1,587,495 1,162,260 Pension and severance funds (2) 1,847,317 1,451,692 Ps. 3,436,491 Ps. 2,617,012 In foreign currency Corporate stock Ps. 34,796 Ps. 32,733 Investment funds 51,834 22,903 Ps. 86,630 Ps. 55,636 Total equity securities Ps. 3,523,121 Ps. 2,672,648 (1) Grupo Aval has restricted Investment Funds related to Concesionaria Nueva Vía al Mar Ps. 49,788 and Concesionaria Vial del Pacífico Ps. 22,444. (2) Pursuant to Colombian rules, the subsidiary Porvenir S. A. is required to directly invest 1% of the total assets of these funds in mandatory severance and pension funds managed by Porvenir.
Schedule of held-for-trading derivative assets and liabilities	December 31, 2019 December 31, 2018 Assets Liabilities Assets Liabilities Forward contracts Foreign currency to buy Ps. 30,706 Ps. 750,384 Ps. 599,987 Ps. 22,175 Foreign currency to sell 734,460 65,009 17,811 566,846 Debt securities to buy 150 277 50 — Debt securities to sell 103 298 22 2,730 Subtotal Ps. 765,419 Ps. 815,968 Ps. 617,870 Ps. 591,751 Swap Cross currency 34,682 31,808 48,546 148,378 Interest rate 73,481 64,673 43,181 32,380 Subtotal Ps. 108,163 Ps. 96,481 Ps. 91,727 Ps. 180,758 Futures contracts Debt securities to buy — 52 — 32 Subtotal Ps. — Ps. 52 Ps. — Ps. 32 Options contracts Foreign currency to buy 43,069 977 59,089 — Foreign currency to sell 783 48,960 — 38,764 Subtotal 43,852 49,937 59,089 38,764 Total derivative assets and liabilities trading Ps. 917,434 Ps. 962,438 Ps. 768,686 Ps. 811,305
Trading assets in debt securities pledged as collateral	The following is a list of held-for-trading financial assets that are being used as collateral in repo operations, pledged as collateral for transactions with financial instruments, or pledged to third parties as collateral to secure financial obligations with other banks (See note 21). December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by central banks Ps. 12,454 Ps. 11,533 Securities issued or secured by foreign Governments 53,900 51,055 Securities issued or secured by Colombian Government 533,358 1,027,436 Securities issued or secured by other financial entities 15,775 15,567 Ps. 615,487 Ps. 1,105,591 Pledged as collateral to special entities such as CRCC, BR and BVC (*) Securities issued or secured by Colombian Government Ps. 5,433 Ps. 34,191 5,433 34,191 Ps. 620,920 Ps. 1,139,782 (*) Cámara de Riesgo Central de Contraparte (“CRCC”), Banco de la República (“BR”) and Bolsa de Valores de Colombia (“BVC”)

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2019
INVESTMENT SECURITIES
Balances of investment securities	Note December 31, 2019 December 31, 2018 Investments in debt securities mandatorily at FVTPL 9.1 Ps. 10,102 Ps. 31,256 Investments in debt securities at FVOCI 9.2 21,608,992 18,935,757 Investments in debt securities at amortized cost 9.3 3,053,862 2,972,616 Investments in equity securities at FVOCI 9.4 1,328,092 1,090,601 Ps. 26,001,048 Ps. 23,030,230 Loss impairment Investments in debt securities at amortized cost 4.1.5 (737) (71) Ps. (737) Ps. (71) Total investment securities net Ps. 26,000,311 Ps. 23,030,159
Investments in debt securities at fair value through profit or loss	The following table includes investments on asset-backed securities mandatorily at FVTPL because the contractual cash flows of these securities are not SPPI on the principal outstanding. December 31, 2019 December 31, 2018 Others 10,102 31,256 Total investments in debt securities mandatorily at FVTPL Ps. 10,102 Ps. 31,256
Investments in debt securities at fair value through OCI	The following table includes investments in debt securities at FVOCI as of December 31, 2019 and 2018 : December 31, 2019 Debt securities Cost Unrealized Gain Unrealized Losses Fair Value ECL Securities issued or secured by Colombian Government Ps. 11,556,588 Ps. 118,746 Ps. (31,392) Ps. 11,643,942 Ps. 3,476 Securities issued or secured by other Colombian Government entities 448,710 17,654 (686) 465,678 482 Securities issued or secured by foreign Governments 4,777,822 219,998 (390) 4,997,430 25,132 Securities issued or secured by central banks 969,832 2,354 (2,091) 970,095 1,210 Securities issued or secured by other financial entities 3,033,397 22,451 (923) 3,054,925 2,850 Securities issued or secured by non-financial sector entities 34,325 515 — 34,840 38 Others 434,719 7,411 (48) 442,082 892 Total debt securities at FVOCI Ps. 21,255,393 Ps. 389,129 Ps. (35,530) Ps. 21,608,992 Ps. December 31, 2018 Debt securities Cost Unrealized Gain Unrealized Losses Fair Value ECL Securities issued or secured by Colombian Government Ps. 10,517,512 Ps. 65,724 Ps. (57,462) Ps. 10,525,774 Ps. 446 Securities issued or secured by other Colombian Government entities 496,936 3,581 (2,882) 497,635 422 Securities issued or secured by foreign Governments 3,042,595 9,209 (36,248) 3,015,556 14,457 Securities issued or secured by central banks 1,133,337 1,058 (2,655) 1,131,740 6,154 Securities issued or secured by other financial entities 3,352,299 3,191 (47,010) 3,308,480 8,623 Securities issued or secured by non-financial sector entities 278,838 156 (69,054) 209,940 68,657 Others 251,878 121 (5,367) 246,632 258 Total debt securities at FVOCI Ps. 19,073,395 Ps. 83,040 Ps. (220,678) Ps. 18,935,757 Ps. 99,017 The following table shows amounts reclassified to profit or loss from OCI before taxes, related to fixed income investments debt securities measured at FVOCI:
Schedule of Tabular disclosure of amounts reclassified to profit or loss form OCI gross of taxes, related to investment debt securities FVOCI	December 31, 2019 December 31, 2018 Redemptions or sales 232,738 43,574 ECL allowance 53,511 31,809 Total reclassified to profit or loss Ps. 286,249 Ps. 75,383
Investments in debt securities at amortized cost	Debt securities December 31, 2019 December 31, 2018 Securities issued or secured by other Colombian Government entities Ps. 3,029,802 Ps. 2,931,172 Securities issued or secured by foreign Governments 23,043 32,321 Securities issued or secured by other financial entities 1,017 9,123 Total debt securities at amortized cost Ps. 3,053,862 Ps. 2,972,616
Summary of investments in debt securities at amortized cost by maturity dates	December 31, 2019 December 31, 2018 Up to 1 month Ps. 693,328 Ps. 671,047 More than 1 month and no more than 3 months 12,787 12,787 More than 3 months and no more than 1 year 2,347,747 2,287,755 More than 1 year and no more than 5 years — 1,027 Total Ps. 3,053,862 Ps. 2,972,616
Investments in equity securities at fair value through OCI	December 31, 2019 Cost Unrealized Gain Unrealized Losses Fair Value In Colombian Pesos Corporate stock Ps. 593,573 Ps. 720,402 Ps. (4,439) Ps. 1,309,536 In foreign currency Corporate stock 12,465 6,091 — 18,556 Total equity securities Ps. 606,038 Ps. 726,493 Ps. (4,439) Ps. 1,328,092 December 31, 2018 Cost Unrealized Gain Unrealized Losses Fair Value In Colombian Pesos Corporate Stock Ps. 593,611 Ps. 476,023 Ps. (3,314) Ps. 1,066,320 In foreign currency Corporate Stock 12,717 11,571 (7) 24,281 Total equity securities Ps. 606,328 Ps. 487,594 Ps. (3,321) Ps. 1,090,601 Variations in fair values fundamentally reflect variations in the performance of companies and market conditions mainly due to changes in interest rates and other economic trends in the country where the investment is held. At December 31, 2019 and 2018 Grupo Aval considers that there is no evidence of deterioration.
Disclosure of equity instruments available for sale	Entity (*) December 31, 2019 December 31, 2018 Empresa de Energia de Bogota S.A. E.S.P. Ps. 1,055,163 Ps. 841,279 Gas Natural S.A. ESP 45,945 43,460 Mineros S.A. 72,638 45,706 Bolsa de Valores de Colombia S.A. 46,817 48,351 Sociedades Portuarias 29,840 28,897 Master Card (**) — 7,526 Others 77,689 75,382 Total Ps. 1,328,092 Ps. 1,090,601 (*) These investments in equity securities have been designated as FVOCI considering that they represent strategic investments for Grupo Aval and therefore, they are not expected to be sold in a foreseeable future.
Disclosure of detailed information about available for sale debt securities used in collateral repo operations	December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by foreign Governments Ps. — Ps. 202,300 Securities issued or secured by Colombian Government 6,116,290 3,195,548 Securities issued or secured by other Colombian Government entities 24,554 63,605 Securities issued or secured by other financial entities 42,068 57,182 Others 40,536 39,602 Ps. 6,223,448 Ps. 3,558,237 Pledged as collateral in operations with derivative instruments Securities issued or secured by Colombian Government 158,850 1,087 Ps. 158,850 Ps. 1,087 Pledged as collateral to special entities such as CRCC, BR and BVC (*) Securities issued or secured by Colombian Government 439,160 471,579 Ps. 439,160 Ps. 471,579 Other collaterals Securities issued or secured by central banks 167,042 167,634 Ps. 167,042 Ps. 167,634 Ps. 6,988,500 Ps. 4,198,537 (*) Cámara de Riesgo Central de Contraparte (“CRCC”), Banco de la República (“BR”) and Bolsa de Valores de Colombia (“BVC”) December 31, December 31, 2019 2018 Pledged as collateral in money market operations Securities issued or secured by other Colombian Government entities Ps. 323,954 Ps. — Ps. 323,954 Ps. — Ps. 323,954 Ps. —

HEDGE ACCOUNTING (Tables)

HEDGE ACCOUNTING (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about hedges [abstract]
Disclosure of detailed information about fluctuation in foreign exchange rates [Text Block]	Changes in the fluctuation of the Colombian peso against the U.S. dollar have been as follows: Date Value of USD 1 Variation in pesos December 31, 2017 2,984.00 (16.71) December 31, 2018 3,249.75 265.75 December 31, 2019 3,277.14 27.39
Disclosure of detailed information about movements in other comprehensive income related to hedges of net investment in foreign operations	According to the information described above, the following table shows movements of OCI gross of taxes, related to hedges of net investment in foreign operations: Exchange Exchange Translation difference of difference adjustment of financial in forward Net OCI Detail of investment the investments liabilities contracts account Leasing Bogotá Panamá Ps. 101,556 Ps. (56,618) Ps. (46,383) Ps. (1,445) Other subsidiaries and branches Banco de Bogotá 3,638 — (3,935) (297) Occidental Bank Barbados 1,142 (1,142) — — Banco de Occidente Panamá 1,799 (1,799) — — Sociedad Portuaria El Cayao S.A. E.S.P. (740) 740 — — Gases del Pacífico S.A.C. (92) (1,096) — (1,189) Gas Natural de Lima y Callao S.A.C. – Calidda (11,973) 11,973 — — Total Ps. 95,329 Ps. (47,942) Ps. (50,318) Ps. (2,931)
Disclosure of detailed information about hedge in foreign currency equity investments [Text Block]	According to information described above, the following table contains details of hedging operations carried out to cover foreign denominated equity investments. The analysis shows current amount of OCI gross of taxes: December 31, 2019 Thousands of USD Ps. millions Amount of hedge by Cumulative financial Amount of translation Exchange Exchange liabilities in hedge by adjustment difference of difference in Investment foreign forward of the financial forward Net OCI Detail of investment amount currency contracts investments (1) liabilities (1) contracts account Leasing Bogotá Panamá 4,475,304 (2,067,100) (2,391,651) Ps. 4,230,937 Ps. (1,651,823) Ps. (2,716,214) Ps. (137,100) Other subsidiaries and branches Banco de Bogotá (2) 139,662 — (137,752) 129,616 — (127,333) 2,283 Occidental Bank Barbados 31,027 (31,027) — 25,748 (25,748) — — Banco de Occidente Panamá 38,924 (38,924) — 37,376 (37,376) — — Sociedad Portuaria El Cayao S.A. E.S.P. (3) 26,214 (26,214) — 9,332 (9,332) — — Gases del Pacífico S.A.C. (3) 2,500 (2,500) — 2,302 (3,490) — (1,189) Gas Natural de Lima y Callao S.A.C. – Calidda (3) 131,606 (131,606) — (3,977) 3,977 — — Total 4,845,237 (2,297,371) (2,529,403) Ps. 4,431,333 Ps. (1,723,792) Ps. (2,843,547) Ps. (136,006) December 31, 2018 Thousands of USD Ps. millions Amount of hedge by Cumulative financial Amount of translation Exchange Exchange liabilities in hedge by adjustment difference of difference in Investment foreign forward of the financial forward Net OCI Detail of investment amount currency contracts investments (1) liabilities (1) contracts account Leasing Bogotá Panamá 3,964,051 (2,067,100) (1,896,348) Ps. 4,129,381 Ps. (1,595,205) Ps. (2,669,831) Ps. (135,655) Other subsidiaries and branches Banco de Bogotá (2) 126,380 — (121,116) 125,978 — (123,398) 2,580 Occidental Bank Barbados 23,971 (23,971) — 24,606 (24,606) — — Banco de Occidente Panamá 23,439 (23,439) — 35,577 (35,577) — — Sociedad Portuaria El Cayao S.A. E.S.P. (3) 31,214 (31,214) — 10,072 (10,072) — — Gases del Pacífico S.A.C. (3) 4,000 (4,000) — 2,394 (2,394) — — Gas Natural de Lima y Callao S.A.C. – Calidda (3) 31,649 (19,336) — 7,996 (7,996) — — Total 4,204,704 (2,169,060) (2,017,464) Ps. 4,336,004 Ps. (1,675,850) Ps. (2,793,229) Ps. (133,075) (1) Includes exchange difference hedged (2) Includes Banco de Bogotá Panamá, Banco Bogotá Finance, Ficentro and contributions of foreign branches in Miami, New York and Nassau. (3) Includes only a portion of this investments hedged
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [text block]	The following is the summary of Promigas and its subsidiaries open cash flow hedges: December 31, 2019 December 31, 2018 Income in Thousands of USD dollars forecasted 92,611 120,265 Notional amount contracts forward Thousands of USD 92,611 120,265 % hedged 100 % 100 % Fair value in Colombian pesos (874) (13,414) # of contracts 158 1,470
Disclosure of analysis of other comprehensive income by item [text block]	The movement of the accumulated OCI account related to cash flow hedges in Colombian pesos during the years ended on December 31, 2019, 2018 and 2017 is as follows: December 31, 2019 December 31, 2018 December 31, 2017 Balance at the beginning of the year Ps. (14,343) Ps. 5,447 Ps. 7,419 Changes in the fair value of the hedge forward contracts (6,597) (19,513) 24,874 Reclassified to profit or loss 20,066 (276) (26,846) Balance at the end of the year Ps. (874) Ps. (14,343) Ps. 5,447
Disclosure of detailed information about derivative financial instruments for hedging [Text Block]	According to information described above, the following table contains the fair value of derivative financial instruments used for hedging: December 31, 2019 December 31, 2018 Item Assets Liabilities Assets Liabilities Forward contracts Foreign currency to buy Ps. 14 Ps. 74,529 Ps. 28,367 Ps. 1,128 Foreign currency to sale 166,584 16,197 1,771 194,411 Subtotal Ps. 166,598 Ps. 90,726 Ps. 30,138 Ps. 195,539 Swap Interest rate — 3,572 — — Subtotal Ps. — Ps. 3,572 Ps. — Ps. — Total hedge derivatives Ps. 166,598 Ps. 94,298 Ps. 30,138 Ps. 195,539

LOANS (Tables)

LOANS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of loans and receivables [Abstract]
Disclosure of detailed information about distribution of the credit portfolio [Text Block]	The distribution of the loan portfolio of Grupo Aval by product is shown as follows: December 31, 2019 December 31, 2018 General purpose loans Ps. 68,949,019 Ps. 65,923,472 Personal loans 36,998,746 33,791,703 Mortgages 18,661,389 17,279,362 Credit Cards 16,891,296 15,550,920 Working capital loans 15,476,328 15,192,830 Commercial financial leases 10,348,941 9,858,952 Interbank & overnight funds 2,718,961 7,635,188 Automobile and vehicle loans 5,759,560 5,951,793 Loans funded by development banks 3,546,973 3,222,754 Housing leases 1,560,294 1,312,741 Overdrafts 553,765 481,946 Microcredit 410,320 425,697 Consumer financial leases 252,522 254,483 Gross balance of loan portfolio Ps. 182,128,114 Ps. 176,881,841 Loss allowance loan portfolio (1) (8,185,797) (8,196,187) Net balance of loan portfolio Ps. 173,942,317 Ps. 168,685,654 (1) See loss allowance reconciliations from the opening to the closing balance in note 4.1.5.
Disclosure of detailed information about distribution of loans portfolio by maturity period [Text Block]	The distribution of Grupo Aval´s loan portfolio by contractual maturity period is as follows: December 31, 2019 Up to 1 From 1 to From 3 to More than year 3 years 5 years 5 years Total Commercial Ps. 44,018,321 Ps. 18,223,388 Ps. 12,022,488 Ps. 17,042,522 Ps. 91,306,719 Consumer 16,949,266 11,080,750 10,905,187 20,652,726 59,587,929 Mortgage 325,908 583,177 734,982 17,017,322 18,661,389 Microcredit 225,439 171,325 11,060 2,496 410,320 Financial leasing (*) 2,385,372 3,363,063 2,608,974 3,804,348 12,161,757 Total gross loan portfolio Ps. 63,904,306 Ps. 33,421,703 Ps. 26,282,691 Ps. 58,519,414 Ps. 182,128,114 December 31, 2018 Up to 1 From 1 to From 3 to More than year 3 years 5 years 5 years Total Commercial Ps. 46,119,981 Ps. 18,810,647 Ps. 11,234,938 Ps. 16,384,459 Ps. 92,550,025 Consumer 15,798,783 10,507,521 10,794,506 18,099,771 55,200,581 Mortgage 287,133 504,727 676,978 15,810,524 17,279,362 Microcredit 226,651 182,245 13,345 3,456 425,697 Financial leasing (*) 2,344,468 2,826,293 2,801,147 3,454,268 11,426,176 Total gross loan portfolio Ps. 64,777,016 Ps. 32,831,433 Ps. 25,520,914 Ps. 53,752,478 Ps. 176,881,841
Disclosure of detailed information about interest income by portfolio	The interest income of the loan portfolio of Grupo Aval by portfolio is shown as follows: December 31, 2019 December 31, 2018 December 31, 2017 Commercial Ps. 6,810,728 Ps. 6,571,717 Ps. 7,327,525 Consumer 8,914,970 8,220,751 8,034,338 Mortgage 1,524,379 1,329,713 1,183,573 Microcredit 106,062 108,472 113,774 Financial leasing 1,135,028 1,159,962 1,240,757 Total interest income Ps. 18,491,167 Ps. 17,390,615 Ps. 17,899,967
Disclosure of detailed information about reconciliation of undiscounted lease payments to net investment in finance lease [Text Block]	As of December 31, 2019, and 2018 the following table shows the reconciliation between gross investment in financial leasing and the present value of minimum payments to be received in these dates: December 31, 2019 December 31, 2018 Total gross rent payments receivable Ps. 18,103,115 Ps. 17,372,906 Less amounts representing running costs (such as taxes, maintenance, insurances, etc.,) (238) (286) Plus, estimated residual amount of assets given for rental (without guarantee) 22,625 36,166 Gross investment in contracts of financial leasing 18,125,502 17,408,786 Less unrealized financial income (5,963,745) (5,982,610) Net investment in contracts of financial leasing 12,161,757 11,426,176 Loss allowance of net investment in financial leasing Ps. (501,825) Ps. (471,007)
Disclosure of detailed information about gross investment and net investment in financial leasing contracts receivable [Text Block]	The detailed information of gross investment and net investment in financial leasing contracts receivable as of December 31, 2019 and 2018 in each period is as follows: December 31, 2019 Gross investment Net investment Up to 1 year Ps. 2,284,884 Ps. 1,582,650 From 1 to 5 years 8,013,317 5,002,687 More than 5 years 7,827,301 5,576,420 Total Ps. 18,125,502 Ps. 12,161,757 December 31, 2018 Gross investment Net investment Up to 1 year Ps. 2,296,714 Ps. 1,579,195 From 1 to 5 years 6,799,539 4,870,790 More than 5 years 8,312,533 4,976,191 Total Ps. 17,408,786 Ps. 11,426,176

OTHER ACCOUNTS RECEIVABLE, NET

OTHER ACCOUNTS RECEIVABLE, NET (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of other accounts receivables [Abstract]
Disclosure of detailed information about other receivables	Balances of other accounts receivable, net of impairment losses, comprise the following as of December 31, 2019 and 2018: December 31, December 31, Reference 2019 2018 Contract assets 12.1 Ps. 7,034,058 Ps. 5,119,649 Other accounts receivable 12.2 4,954,706 4,437,885 Total other accounts receivable 11,988,764 9,557,534 Loss allowance 4.1.5 (286,463) (256,891) Total other accounts receivable, net Ps. 11,702,301 Ps. 9,300,643
Disclosure of detailed information about contract assets	The following table provides information about assets from contracts with customers as of December 31, 2019 and 2018: Contract assets December 31, 2019 December 31, 2018 Financial assets in concession arrangements rights at fair value (1) Ps. 2,706,030 Ps. 2,488,414 Financial assets in concession arrangements rights at amortized cost (1) 4,328,028 2,631,235 Gross balance of other accounts receivable Ps. 7,034,058 Ps. 5,119,649 Loss allowance (2)(3) (2,142) (966) Total contract assets Ps. 7,031,916 Ps. 5,118,683 (1) See note 16 details regarding concession arrangements rights. (2) See reconciliations from the opening to the closing balance of the loss allowance on note 4.1.5 . (3) Grupo Aval has initially adopted IFRS 9 as of January 1, 2018. According to the transition methods chosen, comparative information is not restated. See Notes 2 (2.4) (C)
Schedule of other accounts receivable measured at amortized cost, except	The detailed information of other accounts receivable measured at amortized cost, except for prepaid expeses, as of December 31, 2019 and 2018 is as follows: Other accounts receivable December 31, 2019 December 31, 2018 Accounts receivable for goods and services sales in Non-financial sector companies Ps. 1,149,051 Ps. 962,364 Transfers in process 431,595 330,941 Payment in advance 416,764 370,144 Debtors 377,510 406,079 Dormant customer deposits ICETEX (1)(2) 330,996 279,219 Credit card compensations and network compensation 329,267 372,702 Fees, services and advances 302,861 241,147 Commissions 220,298 244,669 Guarantee deposits in foreign currency transactions 188,493 377,751 Conditional contributions 166,750 — Holding and parent establishment 147,617 136,551 Payment in advance to supplier's contract 110,028 151,313 Interest 61,579 52,948 Transfers to the National Treasury (2) 60,487 61,046 Receivable from forward contracts 56,946 130,989 Other taxes 48,537 21,321 Storage services 44,674 40,265 Quota shares retirement pensions 29,613 29,768 Accounts receivable to payment offices 24,857 69,996 Claims to insurance companies 18,670 14,142 Payment in advance for industry and trade taxes 11,615 9,563 Promissory sellers 9,495 20,785 Deductible taxes 6,542 10,234 Dividends 2,041 1,086 Others (4) 408,420 102,862 Gross balance of other accounts receivable Ps. 4,954,706 Ps. 4,437,885 Loss allowance (3) (284,321) (255,925) Other accounts receivable, net Ps. 4,670,385 Ps. 4,181,960 (1) Pursuant to Colombian Law number 1777 of 2016, financial institutions in Colombia since August 1, 2016, must transfer the funds from clients’ in dormant customer deposits to a special fund as a loan to a Colombian Government entity denominated “ICETEX”, and classified as “Other accounts receivable” given it is permanently deemed refundable to any particular client. This Government Entity Fund is responsible for managing the monies funds with the commitment to return them at the time the bank customer account holder requests them. Dormant client’s customer deposits are accounts of savings or current accounts that exceed the 322 UVR (Real Value Units) equivalent to Ps. 270.713 in Colombian pesos, on which no deposit, withdrawal, transfer or, in general, debit or credit movements have been made during an uninterrupted period of three years. (2) It is expected that these assets are realized in more than 12 months. (3) See the loss allowance reconciliations from the opening to the closing balance in note 4.1.5. (4) The table below shows detail of the others.
Schedule of details others	Detail others December 31, 2019 December 31, 2018 Customers Ps. 85,402 Ps. — Value added taxes 82,553 39,098 Joint operations 15,811 — Transactions between ATM´s 15,241 — Deficiency in savings accounts 12,398 6,864 Transitional account 9,631 — Clearance of accounts 5,835 — Chargebacks 5,078 — Transaction fees 4,730 4,731 Joint ventures 4,489 5,172 Operative process 2,486 4,486 SIIF condonations 2,235 2,219 Company merger 1,503 — ACH, PSE, CENIT fees — 4,988 Credit card brands compensations — 3,247 Others 161,028 32,057 Total Ps. 408,420 Ps. 102,862

NON-CURRENT ASSETS HELD FOR S_2

NON-CURRENT ASSETS HELD FOR SALE (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of non-current assets held for sale [Abstract]
Disclosure of detailed information about movement of non current assets held for sale	The movement of the non-current assets held for sale during the years ended December 31, 2019, 2018 and 2017 is as follows: December 31, 2019 December 31, 2018 December 31, 2017 Balance at the beginning of the year Ps. 186,714 Ps. 101,382 Ps. 259,527 Additions 193,735 180,296 89,216 Assets sold, net (147,760) (52,164) (78,784) Increase / decrease by changes in fair value (1) 2,296 (25,136) (37,818) Reclassifications (2) (29,989) (20,038) (134,795) Exchange gains in foreign currency 1,197 2,374 4,036 Balance at year end Ps. 206,193 Ps. 186,714 Ps. 101,382 (1) Includes at December 2019, Ps. 8,055 by recovery of impairment losses. (2) Includes reclassifications to: I) Investment properties by Ps. (21,722), II) other assets by Ps. (14,980) and III) from Properties, plant and equipment for own use Ps. 6,713 at December 2019; I) Investment properties by Ps. (19,718), II) other assets by Ps. (299) and III) Investments by Ps. (21) at December 2018 and I) Investment properties by Ps. (108,924); II) Investments by Ps. (23,368) and III) Other assets by Ps. (2,503) at December 2017.
Disclosure of non-current assets or disposal groups classified as held for sale [text block]	The following is the detail of the non-current assets held for sale: December 31, 2019 December 31, 2018 Foreclosed assets Movable property Ps. 4,079 Ps. 19,733 Residential real estate 34,162 33,622 Other real estate 146,373 88,569 Ps. 184,614 Ps. 141,924 Assets received from leasing agreements Machinery and equipment 3,777 14,989 Vehicles 104 984 Real estate 6,988 25,060 Ps. 10,869 Ps. 41,033 Other non-current assets held for sale Land 1,225 — Real estate 9,037 3,517 Other 448 240 10,710 3,757 Total non-current assets held for sale Ps. 206,193 Ps. 186,714
Disclosure Of Detailed Information About Liabilities With Groups Of Assets Held For Sale [Text Block]	Following is the detail of the associated liabilities to assets held for sale: December 31, 2019 December 31, 2018 Commercial accounts payable Ps. 54,834 Ps. 15,876 Total Ps. 54,834 Ps. 15,876

INVESTMENTS IN ASSOCIATES AND_2

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of investments in associates and joint ventures [Abstract]
Disclosure Of Detailed Information about Investment In Associates And Joint Ventures [Text Block]	The detail of the investments in associates and joint ventures is as follows: December 31, 2019 December 31, 2018 Associates Ps. 985,497 Ps. 975,032 Joint ventures 2,465 7,711 Total Ps. 987,962 Ps. 982,743
Disclosure of interests in associates [text block]	The following table shows the balances of each investment in associates and joint ventures as of December 31, 2019 and 2018, and Grupo Aval’s ownership interest percentage in those entities: December 31, 2019 December 31, 2018 Ownership Book Ownership Book interest value interest value Associates Gas Natural de Lima y Callao S.A. -Calidda S.A. 40 % Ps. 435,359 40 % Ps. 410,984 Gases del Caribe S.A. E.S.P. 31 % 268,234 31 % 269,185 Credibanco 25 % 200,953 25 % 195,157 Redeban Multicolor S.A. 20 % 22,825 20 % 20,508 A.C.H Colombia S.A. 34 % 17,187 34 % 14,010 Aerocali S.A. 50 % 12,648 50 % 19,157 Colombiana de Extrusión S.A. Extrucol 30 % 12,539 30 % 11,327 Energía Eficiente S.A. 39 % 10,119 39 % 8,252 Servicios de Identidad Digital S.A.S. 33 % 2,352 — % — Metrex S.A. 18 % 2,080 18 % 2,054 Concentra Inteligencia en Energía S.A.S. 29 % 692 24 % 601 ADL Digital Lab SAS 34 % 404 — % — C.I. Acepalma S.A. (*) 0.2 % 105 11 % 5,458 Concesionaria Tibitoc S.A. — % — 33 % 18,339 Ps. 985,497 Ps. 975,032
Disclosure of interests in joint arrangements [text block]	December 31, 2019 December 31, 2018 Ownership Book Ownership Book interest value interest value Joint ventures Cfc Sk El Dorado Latam Management Company Ltd (1) 50 % Ps. 1,911 50 % Ps. 6,764 Cfc Sk El Dorado Latam Capital Partner Ltd (1) 50 % 356 50 % 549 Cfc Sk El Dorado Latam Advisory Company S.A.S. (1) 50 % 198 50 % 398 Concesionaria Ruta Del Sol S.A.S. (2) (**) 33 % — 33 % — Ps. 2,465 Ps. 7,711 (**) On December 31, 2018 the investment in Concesionaria Ruta del Sol S.A.S. has been provisioned at 100% by Ps.111,783.
Disclosure of detailed information about movement of investments in associates and joint ventures accounts [Text Block]	A roll-forward of investments in associates and joint ventures accounts is shown below for the years ended at December 31, 2019, 2018 and 2017: Associates December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 975,032 Ps. 925,823 Ps. 865,410 Change in accounting policy (IFRS 9) — (3,691) — Acquisitions 2,789 — — Participation in the profit or loss of the period 231,693 195,991 170,349 Participation in Other Comprehensive Income (9,061) 22,400 1,135 Dividends received (192,602) (171,899) (107,812) Sale of investments (5,125) — — Entity Liquidation (4,956) — — Allowance for Impairment (225) — — Exchange difference (12,048) 6,408 (3,259) Year-end balance Ps. 985,497 Ps. 975,032 Ps. 925,823 Joint ventures December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 7,711 Ps. 117,191 Ps. 281,237 Participation in the period profit or loss (2,067) 1,724 1,615 Participation in Other Comprehensive Income — — (7) Dividends received (3,310) — — Capitalization — — 87 Allowance for impairment (*) — (111,783) (140,691) Transfers / reclassification — — (12,405) Exchange difference 131 579 — Balance acquired in business combination — — (12,645) Year-end balance Ps. 2,465 Ps. 7,711 Ps. 117,191 (*) Impairment of the investment in the Concesionaria Ruta del Sol S.A.S. joint businesses (CRDS).
Disclosure of associates [text block]	The following table details the financial information of the associates: When calculating the participation method, the closing financial information is not available, since the associates are in this process, and, therefore, the information of the immediately preceding month for the years 2019 and 2018 is taken. December 31, 2019 Assets Liabilities Equity Income Expenses Net income A.C.H. Colombia S.A. Ps. 86,801 Ps. 35,964 Ps. 50,837 Ps. 103,702 Ps. 72,534 Ps. 31,168 Redeban Multicolor S.A. 231,453 118,474 112,979 254,615 238,215 16,400 Credibanco 373,818 176,118 197,700 282,888 238,143 44,745 Aerocali S.A. 82,107 56,812 25,295 155,643 136,736 18,907 Colombiana de Extrusión S.A. Extrucol 77,724 35,929 41,795 108,772 101,872 6,900 Concesionaria Tibitoc S.A. (*) 56,223 281 55,942 2,459 1,313 1,146 Metrex S.A. 33,408 21,852 11,556 30,561 28,689 1,872 C.I. Acepalma 240,527 193,974 46,553 528,203 520,083 8,120 Gases del Caribe S.A. 2,875,918 1,993,317 882,601 2,040,033 1,761,015 279,018 Cálidda S.A. 3,586,674 2,432,743 1,153,931 2,216,510 1,951,117 265,393 Concentra Inteligencia en Energía S.A.S. 2,829 400 2,429 2,006 1,628 378 Energía Eficiente S.A. 74,985 49,451 25,534 307,435 302,606 4,829 Servicios de Identidad Digital S.A.S. 7,824 769 7,055 1 53 (52) ADL Digital Lab SAS 1,189 — 1,189 — 11 (11) Ps. 7,731,480 Ps. 5,116,084 Ps. 2,615,396 Ps. 6,032,828 Ps. 5,354,015 Ps. 678,813 (*) In December 2019 Concesionaria Tibitoc S.A. disposed of their operation. December 31, 2018 Assets Liabilities Equity Income Expenses Net income A.C.H. Colombia S.A. Ps. 78,878 Ps. 37,437 Ps. 41,441 Ps. 83,612 Ps. 64,067 Ps. 19,545 Redeban Multicolor S.A. 213,133 111,626 101,507 214,360 201,980 12,380 Credibanco 263,521 93,951 169,570 240,489 219,166 21,323 Aerocali S.A. 104,506 66,191 38,315 214,805 205,171 9,634 Colombiana de Extrusión S.A. Extrucol 86,398 48,642 37,756 113,749 108,781 4,968 Concesionaria Tibitoc S.A. 57,420 2,403 55,017 20,468 15,964 4,504 Metrex S.A. 31,482 19,938 11,544 43,468 41,254 2,214 C.I. Acepalma 281,161 232,843 48,318 723,908 717,637 6,271 Gases del Caribe S.A. 2,585,669 1,608,107 977,562 1,938,431 1,646,970 291,461 Cálidda S.A. 2,943,477 1,916,017 1,027,460 2,007,368 1,804,907 202,461 Concentra Inteligencia en Energía S.A.S. 2,560 435 2,125 1,234 1,292 (58) Energía Eficiente S.A. 57,226 36,188 21,038 112,914 109,488 3,426 Ps. 6,705,431 Ps. 4,173,778 Ps. 2,531,653 Ps. 5,714,806 Ps. 5,136,677 Ps. 578,129
Disclosure of joint ventures [text block]	The following table details the financial information of the joint ventures: December 31, 2019 Assets Liabilities Equity Income Expenses Net income CFC SK El Dorado Latam Advisory Company S.A.S. Ps. 662 Ps. 267 Ps. 395 Ps. 1,301 Ps. 1,701 Ps. (400) Cfc Sk El Dorado Latam Management Company Ltd. 3,851 28 3,823 1 3,329 (3,328) Cfc Sk El Dorado Latam Capital Partners, Ltd. 736 26 710 (198) 209 (407) Ps. 5,249 Ps. 321 Ps. 4,928 Ps. 1,104 Ps. 5,239 Ps (4,135) December 31, 2018 Assets Liabilities Equity Income Expenses Net income CFC SK El Dorado Latam Advisory Company S.A.S. Ps. 1,077 Ps. 281 Ps. 796 Ps. 1,939 Ps. 1,762 Ps. 177 Cfc Sk El Dorado Latam Management Company Ltd. 13,573 45 13,528 3,697 410 3,287 Cfc Sk El Dorado Latam Capital Partners, Ltd. 1,125 26 1,099 150 126 24 Ps. 15,775 Ps. 352 Ps. 15,423 Ps. 5,786 Ps. 2,298 Ps 3,488

TANGIBLE ASSETS (Tables)

TANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Disclosure of detailed information about property, plant and equipment [text block]	The movement of the carrying value amounts of tangible assets for the years ended on December 31, 2019, 2018 and 2017 is as follows: For own use (1) Given in operating leases Right of use assets Investment (3) properties Biological assets Total Cost Balance as of January 1, 2017 Ps. 8,388,936 Ps. 7,047 Ps. — Ps. 610,188 Ps. 48,002 Ps. 9,054,173 Purchases or capitalized expenses 470,650 3,102 — 84,036 24,409 582,197 Withdrawals / Sales (4) (374,606) (2,467) — (28,431) (19,775) (425,279) Changes in fair value — — — 46,675 13,503 60,178 Transfers to/from non-current assets held for sale 587 — — 101,469 — 102,056 Effect of movements in exchange rates (65,404) — — — — (65,404) Reclassifications 77,394 — — (30,143) — 47,251 Balance as of December 31, 2017 8,497,557 7,682 — 783,794 66,139 9,355,172 Purchases or capitalized expenses (2) 547,668 1,641 — 61,300 20,900 631,509 Withdrawals / Sales (4) (389,303) (1,539) — (78,684) (23,343) (492,869) Changes in fair value — — — 39,415 20,606 60,021 Transfers to/from non-current assets held for sale 1,335 — — 19,719 — 21,054 Effect of movements in exchange rates 120,766 — — — — 120,766 Reclassifications (37,538) — — 10,780 (96) (26,854) Balance as of December 31, 2018 8,740,485 7,784 — 836,324 84,206 9,668,799 Effects of amendments in accounting policies by rights of use (91,604) — 2,365,889 — — 2,274,285 Purchases or capitalized expenses (2) 671,219 7,468 187,834 116,702 20,559 1,003,782 Withdrawals / Sales (287,264) (310) (80,078) (68,989) (18,822) (455,463) Changes in fair value — — — 19,597 18,914 38,511 Revaluation of investment properties — — — 5,288 — 5,288 Transfers to/from non-current assets held for sale (7,782) — — 21,722 — 13,940 Effect of movements in exchange rates 54,794 — 50,153 — — 104,947 Reclassifications 143,507 (1,671) (4,822) (2,078) — 134,936 Balance as of December 31, 2019 9,223,355 13,271 2,518,976 928,566 104,857 12,789,025 Accumulated Depreciation: Balance January 1, 2017 (2,487,188) (4,883) — — — (2,492,071) Depreciation of the year charged against profit or loss (463,133) (759) — — — (463,892) Withdrawals / Sales (4) 274,804 2,036 — — — 276,840 Effect of movements in exchange rates 20,881 — — — — 20,881 Reclassification (35,531) — — — — (35,531) Balance December 31, 2017 (2,690,167) (3,606) — — — (2,693,773) Depreciation of the year charged against profit or loss (477,260) (1,346) — — — (478,606) Withdrawals / Sales (4) 164,541 1,381 — — — 165,922 Effect of movements in exchange rates (63,058) — — — — (63,058) Reclassification (4,897) — — — — (4,897) Balance December 31, 2018 (3,070,841) (3,571) — — — (3,074,412) Effects of amendments in accounting policies by rights of use 25,446 — (82,351) — — (56,905) Depreciation of the year charged against profit or loss (513,357) (2,552) (323,196) — — (839,105) Withdrawals / Sales 231,892 19 8,302 — — 240,213 Transfers to/from non-current assets held for sale 1,069 — — — — 1,069 Effect of movements in exchange rates (25,950) — 772 — — (25,178) Reclassification (83,564) 1,062 3,055 — — (79,447) Balance December 31, 2019 (3,435,305) (5,042) (393,418) — — (3,833,765) Impairment losses: Balance as of January 1, 2017 (2,499) (88) — — — (2,587) Year impairment charge (4,894) 88 — — — (4,806) Balance as of December 31, 2017 (7,393) — — — — (7,393) Withdrawals / Year impairment charge 1,492 (3) — — — 1,489 Balance as of December 31, 2018 (5,901) (3) — — — (5,904) Withdrawals / Year impairment charge 1,085 (30) — — — 1,055 Balance as of December 31, 2019 (4,816) (33) — — — (4,849) Tangible Assets, net: Balance as of December 31, 2018 Ps. 5,663,743 Ps. 4,210 Ps. — Ps. 836,324 Ps. 84,206 Ps. 6,588,483 Balance as of December 31, 2019 Ps. 5,783,234 Ps. 8,196 Ps. 2,125,558 Ps. 928,566 Ps. 104,857 Ps. 8,950,411 (1) Only includes assets for own use different than assets given in operating lease (see note 15.2). (2) The total of purchases for own use, includes at December 31, 2019 Ps. 329 and Ps. 325 at December 31, 2018 for capitalization of intangible (3) The cost includes fair value. The total of purchases of investment properties, includes at December 31, 2019 Ps. 114,331; Ps. 6,895 at December 31, 2018 and Ps. 8,219 at December 31, 2017, of assets received in total or partial settlement of the payment obligations of debtors. (4) The total of Withdrawals includes Ps. (114,099) in Own Use, Ps. 3,064 in investment properties and Ps. (4,225) in biological assets, from the liquidation of “Pizano” at December 31, 2018 and Ps. (30,440) in Own Use of the liquidation of “Consorcio Consol” at December 31, 2017.
Disclosure of operating lease by lessor, IFRS 16 [table text block]	Below is a summary of the minimum lease payments to be received in the next years based on assets given in operating lease to December 31, 2019 and 2018: December 31, December 31, 2019 2018 Less than a year Ps. Ps. More than a year, less than 5 Total Ps. Ps.
Disclosure of reconciliation of changes in biological assets [text block]	Following is the detail of the biological assets by type: December 31, 2019 December 31, 2018 African palm In production (at fair value) Ps. 32,509 Ps. 29,783 Rubber plantations In production (at fair value) 57,698 41,533 Other (1) 14,650 12,890 Total Ps. 104,857 Ps. 84,206 (1) Includes short-term crops and fish farming measured at cost by Ps. 9,081 at December 31, 2019 and Ps.7,633 at December 31, 2018.
Disclosure of income loss from biological assets [text block]	During the years ended on December 31, 2019, 2018 and 2017, Grupo Aval recorded in its statement of income the following income and expenses related to biological assets: December 31, December 31, December 31, 2019 2018 2017 Sales of biological goods Ps. 107,590 Ps. 88,382 Ps. 43,788 Changes in fair value of biological assets 18,914 20,606 13,503 Subtotal 126,504 108,988 57,291 Costs and expenses (93,626) (73,981) (37,313) Depreciation of bearer plants (5,249) (11,816) (3,405) General administration costs and sales (9,260) (5,390) (7,278) Financial costs (6,221) (5,599) (4,136) Subtotal (114,356) (96,786) (52,132) Total net income Ps. 12,148 Ps. 12,202 Ps. 5,159
Disclosure of information about areas planted in hectares	The following is the detail of the hectares sown by subordinates of Grupo Aval in the process of growth and in the production process as of December 31, 2019 and 2018: December 31, December 31, 2019 2018 Areas planted in hectares In production process 8,936 8,534
Disclosure of maturity analysis of areas planted in hectares	The following is the detail of hectares for expected years of production: December 31, December 31, 2019 2018 Areas planted in hectares: Less than 1 year 435 1,639 Between 1 and 5 years 4,751 3,194 Between 5 and 10 years 1,610 1,966 More than 10 years 2,140 1,735 Total 8,936 8,534
Disclosure of detailed information about investment property [text block]	The following table summarizes investment properties as of December 31, 2019 and 2018: Accumulated adjustments to fair December 31, 2019 Cost value Carrying amount Land Ps. 446,012 Ps. 194,289 Ps. 640,301 Buildings 238,485 49,780 288,265 Balance as of December 31, 2019 Ps. 684,497 Ps. 244,069 Ps. 928,566 Accumulated adjustments to fair December 31, 2018 Cost value Carrying amount Land Ps. 371,087 Ps. 198,252 Ps. 569,339 Buildings 215,712 51,273 266,985 Balance as of December 31, 2018 Ps. 586,799 Ps. 249,525 Ps. 836,324
Disclosure of rental income from investment property, net of direct operating expense [text block]	The following amounts have been recognized in the Consolidated Statement of Income during the years ended on December 31, 2019, 2018 and 2017 in relation to investments properties: December 31, December 31, December 31, 2019 2018 2017 Income from rents Ps. 10,289 Ps. 10,370 Ps. 11,992 Direct operating expenses deriving from property investments which create income from rent (1,929) (1,486) (1,053) Direct operating expenses deriving from property investments which do not create income from rent (6,211) (5,112) (4,239) Ps. 2,149 Ps. 3,772 Ps. 6,700
Property, plant and equipment not subject to operating leases [member]
Disclosure of detailed information about property, plant and equipment [line items]
Disclosure of detailed information about property, plant and equipment [text block]	The following is the detail of the balance at December 31, 2019 and 2018, by type: Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2019 Land Ps. 1,007,388 Ps. — Ps. (4,279) Ps. 1,003,109 Buildings 2,770,341 (639,060) — 2,131,281 Office equipment and accessories 1,069,621 (740,455) (284) 328,882 Information technology equipment 2,028,137 (1,434,889) — 593,248 Vehicles 135,334 (70,283) — 65,051 Equipment and machinery 1,397,337 (267,216) (253) 1,129,868 Silos 8,613 (6,718) — 1,895 Warehouses 62,002 (33,006) — 28,996 Improvements in leaseholds properties 410,224 (229,969) — 180,255 Construction in progress 96,576 — — 96,576 Bearer plants 237,782 (13,709) — 224,073 Balance as of December 31, 2019 Ps. 9,223,355 Ps. (3,435,305) Ps. (4,816) Ps. 5,783,234 Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2018 Land Ps. 1,011,018 Ps. — Ps. (3,742) Ps. 1,007,276 Buildings 2,652,100 (569,741) — 2,082,359 Office equipment and accessories 1,013,974 (684,617) (262) 329,095 Information technology equipment 1,725,795 (1,260,973) — 464,822 Vehicles 134,417 (70,826) (35) 63,556 Equipment and machinery 1,355,555 (222,139) (1,862) 1,131,554 Silos 8,613 (5,739) — 2,874 Warehouses 44,416 (26,679) — 17,737 Improvements in leaseholds properties 381,158 (220,939) — 160,219 Construction in progress 185,264 — — 185,264 Bearer plants 228,175 (9,188) — 218,987 Balance as of December 31, 2018 Ps. 8,740,485 Ps. (3,070,841) Ps. (5,901) Ps. 5,663,743
Property, plant and equipment subject to operating leases [member]
Disclosure of detailed information about property, plant and equipment [line items]
Disclosure of operating lease by lessor, IFRS 16 [table text block]	The following is movement of carrying value amounts of the balance to as of December 31, 2019 and 2018, by type: Accumulated Impairment Carrying December 31, 2019 Cost depreciation loss amount Equipment, furniture and office equipment Ps. — Ps. — Ps. — Ps. — Computing equipment 8,758 (3,321) — 5,437 Vehicles 3,061 (1,365) — 1,696 Mobilization equipment and machinery 1,452 (356) (33) 1,063 Balance as of December 31, 2019 Ps. 13,271 Ps. (5,042) Ps. (33) Ps. 8,196 Accumulated Impairment Carrying December 31, 2018 Cost depreciation loss amount Equipment, furniture and office equipment Ps. 98 Ps. (98) Ps. — Ps. — Computing equipment 4,041 (1,641) 1 2,401 Vehicles 3,176 (1,648) (4) 1,524 Mobilization equipment and machinery 469 (184) — 285 Balance as of December 31, 2018 Ps. 7,784 Ps. (3,571) Ps. (3) Ps. 4,210
Right of use assets
Disclosure of detailed information about property, plant and equipment [line items]
Disclosure of operating lease by lessor, IFRS 16 [table text block]	The following is movement of carrying value amounts of the balance to as of December 31, 2019 and 2018, by type: Accumulated Impairment Carrying Cost depreciation loss amount December 31, 2019 Land Ps. 27,411 Ps. (1,210) Ps. — Ps. 26,201 Buildings 2,028,767 (270,450) — 1,758,317 Office equipment and accessories 73 (27) — 46 Information technology equipment 89,818 (16,313) — 73,505 Vehicles 74,410 (19,221) — 55,189 Equipment and machinery 183,936 (69,194) — 114,742 Warehouses 114,561 (17,003) — 97,558 Balance as of December 31, 2019 Ps. 2,518,976 Ps. (393,418) Ps. — Ps. 2,125,558

CONCESSION ARRANGEMENTS RIGHTS

CONCESSION ARRANGEMENTS RIGHTS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about service concession arrangements [abstract]
Disclosure of balance of assets in concession agreements [text block]	December 31, 2019 December 31, 2018 Financial assets at fair value (2) Ps. 2,706,030 Ps. 2,488,414 Financial asset at amortized cost net (1) (2) 4,325,886 2,630,269 Intangible asset 7,521,488 5,514,481 Total assets in concession contracts Ps 14,553,404 Ps. 10,633,164 (1) At December 31, 2019 and 2018, the balance of the financial asset at amortized cost includes an impairment expense of Ps. 1,176 and Ps. 966 respectly, see note 16.1. (2) See note 12, other accounts receivables.
Disclosure of detailed information about service concession arrangements [text block]	Gas and Energy Infrastructure Total Balance at December 31, 2016 Ps. 2,072,674 Ps. 203,241 Ps. 2,275,915 Additions or new concession arrangements — 698,749 698,749 Collections during the year — (162,271) (162,271) Adjustment to fair value credited to income 209,937 — 209,937 Accrued interest — 46,299 46,299 Balance at December 31, 2017 Ps. 2,282,611 Ps. 786,018 Ps. 3,068,629 Impact of the adoption of IFRS 15 (1) — 463,622 463,622 Impact of the adoption of IFRS 9 (1) — (568) (568) Balance at January 01, 2018 Ps. 2,282,611 Ps. 1,249,072 Ps. 3,531,683 Additions or new concession arrangements — 1,361,261 1,361,261 Collections during the year — (22,803) (22,803) Adjustment to fair value credited to income 205,803 — 205,803 Accrued interest — 43,137 43,137 Impairment expense — (398) (398) Balance at December 31, 2018 Ps. 2,488,414 Ps. 2,630,269 Ps. 5,118,683 Additions or new concession arrangements — 1,495,035 1,495,035 Collections during the year — (23,674) (23,674) Adjustment to fair value credited to income 217,616 — 217,616 Accrued interest — 225,432 225,432 Impairment expense — (1,176) (1,176) Balance at December 31, 2019 Ps. 2,706,030 Ps. 4,325,886 Ps. 7,031,916 (1) See note 2 (2.4. (B and C)).
Disclosure of detailed information about intangible assets [text block]	The following table shows a roll-forward of the main concession arrangements in Grupo Aval’s subsidiaries under intangible assets during years ended at December 31, 2019, 2018 and 2017. Cost Gas and energy Infrastructure Total At December 31, 2016 Ps. 2,369,931 Ps. 1,079,798 Ps. 3,449,729 Additions 193,489 417,420 610,909 Reclassification to PPE (14,408) — (14,408) Withdrawals (1,915) (1,590) (3,505) Effect of movements in exchange rates (1,041) — (1,041) At December 31, 2017 Ps. 2,546,056 Ps. 1,495,628 Ps. 4,041,684 Impact of the adoption of IFRS 15 (3) — 619,949 619,949 Balance at January 01, 2018 Ps. 2,546,056 Ps. 2,115,577 Ps. 4,661,633 Additions 428,375 1,617,306 2,045,681 Reclassification to PPE 25,840 — 25,840 Withdrawals (1,250) (124) (1,374) Effect of movements in exchange rates 33,993 — 33,993 At December 31, 2018 Ps. 3,033,014 Ps. 3,732,759 Ps. 6,765,773 Additions 760,982 1,525,013 2,285,995 Reclassification to PPE 407 — 407 Withdrawals (2) (10,299) (763,518) (773,817) Effect of movements in exchange rates 1,434 — 1,434 At December 31, 2019 Ps. 3,785,538 Ps. 4,494,254 Ps. 8,279,792 Accumulated Amortization Gas and energy Infrastructure Total At December 31, 2016 Ps. (251,731) Ps. (392,684) Ps. (644,415) Amortization of the year (119,549) (164,940) (284,489) Reclassification to PPE 841 — 841 Withdrawals 630 — 630 Effect of movements in exchange rates (84) — (84) At December 31, 2017 Ps. (369,893) Ps. (557,624) Ps. (927,517) Amortization of the year (129,509) (170,701) (300,210) Reclassification to PPE (665) — (665) Withdrawals (1) 147 (21,230) (21,083) Effect of movements in exchange rates (1,817) — (1,817) At December 31, 2018 Ps. (501,737) Ps. (749,555) Ps. (1,251,292) Amortization of the year (140,488) (108,216) (248,704) Reclassification to PPE 7 — 7 Withdrawals (1) (2) 2,964 741,226 744,190 Effect of movements in exchange rates (473) — (473) At December 31, 2019 Ps. (639,727) Ps. (116,545) Ps. (756,272) Impairment loss Gas and energy Infrastructure Total At December 31, 2018 Ps. — Ps. — Ps. — Impairment charge — (2,032) (2,032) At December 31, 2019 Ps. — Ps. (2,032) Ps. (2,032) Total Intangible Assets Gas and energy Infrastructure Total Balance at December 31, 2016 Ps. 2,118,200 Ps. 687,114 Ps. 2,805,314 Cost 176,125 415,830 591,955 Amortization (118,162) (164,940) (283,102) Balance at December 31, 2017 Ps. 2,176,163 Ps. 938,004 Ps. 3,114,167 Impact of the adoption of IFRS 15 (3) — 619,949 619,949 Balance at January 01, 2018 Ps. 2,176,163 Ps. 1,557,953 Ps. 3,734,116 Cost 486,958 1,617,182 2,104,140 Amortization (131,844) (191,931) (323,775) Balance at December 31, 2018 Ps. 2,531,277 Ps. 2,983,204 Ps. 5,514,481 Cost 752,524 761,495 1,514,019 Amortization (2) (137,990) 633,010 495,020 Impairment loss — (2,032) (2,032) Balance at December 31, 2019 Ps. 3,145,811 Ps. 4,375,677 Ps. 7,521,488 (1) In infrastructure, Proyectos de Infraestructura PISA S.A. includes of Ps. 21,884 for 2019 and Ps. 21,230 for 2018 that was offset with a liability outstanding with Agencia Nacional de Infraestructura – (ANI), due to the liquidation of the capacity records with the ANI. (2) As of December 31, 2019, Concesionaria Vial de los Andes - Coviandes finished its operation and maintenance stage. The infrastructure was returned to the grantor. (3) See note 2 (2.4 (B and C)).
Disclosure of Concession Contracts Granted to Subsidiaries and Other Related Parties [Text Block]	2019 Year of Concession Contract construction % progress Concession Owner Business and country Objective Current stage date start of construction end date Gas and Energy Surtigas S.A. E.S.P. Gas and Energy Colombia Purchase, storage, packaging and distribution of gases derived from hydrocarbons. Operation 03/1984 to 04/1994 1984 100 % 2034 to 2045 Transmetano E.S.P. S.A. Gas and Energy Colombia Construction, operation and maintenance of gas transportation systems. Operation 08/1994 1996 100 % 2044 Promigas S.A. E.S.P. Gas and Energy Colombia Purchase, sale, transportation, distribution, exploitation and exploration of natural gas, oil and hydrocarbons in general. Operation 05/1976 to 11/1994 1976 100 % 2026 to 2044 Promioriente S.A. E.S.P. Gas and Energy Colombia Construction, operation and maintenance of gas pipelines. Operation 09/1995 1995 100 % 2045 Gases de Occidente S.A. E.S.P. Gas and Energy Colombia Transportation and distribution of liquefied petroleum gas and natural gas. Operation 08/1998 1998 100 % 2047 Compañía Energética de Occidente S.A. E.S.P. Gas and Energy Colombia Administrative, operational, technical and commercial management for the provision of electrical energy. Construction and Operation 01/2010 2010 38.33 % 2035 Gases del Pacífico S.A.C. Gas and Energy Perú Purchase, sale, production, commercialization of energy in any of its forms. Construction and Operation 10/2013 2015 62.00 % 2034 Gases del Norte del Perú S.A.C. Gas and Energy Perú Construction and distribution service of natural gas. Construction 11/2019 2020 — % 2051 Sociedad Portuaria El Cayao S.A. E.S.P. Gas and Energy Colombia Construction, maintenance and administration of ports. Operation 07/2015 2015 100 % 2035 Infrastructure Proyectos de Infraestructura S.A. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 12/1993 1994 100 % 2033 Concesionaria Vial de los Andes S.A.S. - Coviandes Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Reversion 08/1994 1996 100 % 2019 Concesiones CCFC S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 06/1995 2001 100 % 2024 Concesionaria Panamericana S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Operation 12/1997 2009 100 % 2035 Concesionaria Vial del Pacífico S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 09/2014 2018 33.85 % 2040 Concesionaria Nueva Vía del Mar S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Preconstruction 01/2015 N/A 3.85 % 2044 Concesionaria Vial Andina S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 06/2015 2016 64.81 % 2050 Concesionaria Vial Del Oriente S.A.S. Infrastructure Colombia Design, construction, equipment, conservation, operation and maintenance of road infrastructure. Construction 07/2015 2018 23.13 % 2038

GOODWILL (Tables)

GOODWILL (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about goodwill [Abstract]
Disclosure of reconciliation of changes in goodwill [text block]	The following is the roll-forward of the goodwill balance during the years ended December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Balance at the beginning of the year Ps. 7,318,594 Ps. 6,901,056 Impairment charge (13,041) — Effect of movements in exchange rates (1) 43,034 417,538 Balance at the end of the year Ps. 7,348,587 Ps. 7,318,594 (1) The foreign exchange adjustment is attributable to Leasing Bogotá Panamá
Disclosure of information for cash-generating units [text block]	The following is the detail of goodwill assigned by cash generating units (CGU) representing the lowest identifiable level within Grupo Aval and monitored by management. In addition the values of goodwill are not greater than the identified business’ segments: Goodwill carrying amount December 31, December 31, CGU 2019 2018 Leasing Bogotá Panamá (2) Ps. 5,148,935 Ps. 5,105,901 Banco de Bogotá S.A. over Megabanco (1) 465,905 465,905 Promigas S.A. and Subsidiaries 169,687 169,687 Concesionaria Panamericana S.A.S. 106,874 119,915 Concesionaria Covipacífico S.A.S. 102,376 102,376 Hoteles Estelar S.A. 6,661 6,661 Banco de Occidente S.A. over Banco Unión (1) 22,724 22,724 Banco Popular S.A. 358,401 358,401 Banco de Bogotá S.A. 301,222 301,222 Banco de Occidente S.A. 127,571 127,571 Sociedad Administradora de Pensiones y Cesantías Porvenir S.A. 538,231 538,231 Ps. 7,348,587 Ps. 7,318,594 (1) Goodwill recognized as a result of mergers into these entities. (2) The change presented corresponds to the foreign exchange adjustment attributable to Leasing Bogotá Panamá.
Disclosure of detailed information about averages of primary premises used in reports on impairment of cash Generating units with allocated goodwill [Text Block]	The following table shows the averages of the main assumptions used in the reports on impairment of the cash-generating units with allocated goodwill, based on the impairment assessments done on the indicated dates. Although the valuation exercise includes a 10 year projection, the following tables only show the first 5 years as, following the first year of projection, rates are generally stable with no significant variations. December 31, 2019 2020 2021 2022 2023 2024 Lending rate on the loan portfolio and investments % 11.4 % 11.4 % 11.3 % 11.3 % Borrowing rate 2.8 % 2.8 % 2.8 % 2.8 % 2.8 % Growth in income from commissions (0.2) % 6.6 % 8.4 % 8.7 % 8.7 % Growth in expenses 5.9 % 5.5 % 5.4 % 5.7 % 6.2 % Discount rate after taxes 11.5 % Growth rate after ten years 3.0 % December 31, 2018 2019 2020 2021 2022 2023 Lending rate on the loan portfolio and investments 11.4 % 11.4 % 11.4 % 11.3 % 11.3 % Borrowing rate 2.9 % 3.0 % 3.0 % 3.0 % 3.0 % Growth in income from commissions 2.0 % 7.7 % 8.0 % 7.8 % 7.7 % Growth in expenses 5.3 % 6.2 % 5.8 % 6.0 % 6.3 % Discount rate after taxes 11.8 % Growth rate after ten years 3.0 %
Disclosure of detailed information about allocation of goodwill to cash generating units [Text Block]	That goodwill was allocated to the groups of cash-generating units inside Banco de Bogotá involved in the following lines of business: Share (%) Value Commercial 32.7 % Ps. 152,539 Consumer 30.8 % 143,287 Payroll installment loans 27.0 % 125,934 Vehicles 6.7 % 31,304 Microcredit 2.8 % 12,841 Total 100.0 % Ps. 465,905
Disclosure of detailed information about main premises used in latest impairment tests of cash Generating units with allocated goodwill [Text Block]	The following table shows the main assumptions used in the latest impairment tests of the groups of cash-generating units with allocated goodwill. December 31, 2019 2020 2021 2022 2023 2024 Lending rate on the loan portfolio and investments 9.0 % 9.4 % 10.0 % 10.3 % 10.4 % Borrowing rate 3.7 % 3.7 % 4.1 % 4.4 % 4.3 % Growth in income from commissions 13.0 % 7.8 % 7.8 % 8.4 % 8.6 % Growth in expenses 0.1 % 5.3 % 5.7 % 5.2 % 4.9 % Inflation 3.2 % 2.7 % 3.5 % 3.3 % 3.3 % Discount rate after taxes 13.0 % Growth rate after five years 3.3 % December 31, 2018 2019 2020 2021 2022 2023 Lending rate on the loan portfolio and investments 9.4 % 10.0 % 10.1 % 10.3 % 10.5 % Borrowing rate 3.5 % 3.8 % 3.9 % 4.2 % 4.3 % Growth in income from commissions 9.9 % 7.5 % 8.0 % 7.9 % 8.3 % Growth in expenses 3.7 % 3.9 % 3.1 % 3.5 % 3.6 % Inflation 2.9 % 3.1 % 2.7 % 3.5 % 3.3 % Discount rate after taxes 14.0 % Growth rate after five years 3.1 %
Disclosure of detailed information about main premises used in impairment test reports taken as basis for impairment testing [Text Block]	The following are the main assumptions used in the impairment test reports taken as the basis for impairment testing on the dates listed, although the valuation exercise includes a 20 years projection, the following tables only show the first 5 years as reates, following the first year of projection, are generally stable with no significant variations. December 31, 2019 2020 2021 2022 2023 2024 Interest rate on investments 2.7 % 2.8 % 3.2 % 3.1 % 3.1 % Borrowing rate 6.3 % 6.3 % 6.3 % 6.3 % 6.3 % Growth in income from commissions 0.7 % 6.3 % 7.5 % 6.5 % 6.4 % Growth in expenses 3.4 % 4.8 % 5.5 % (0.5) % 3.2 % Inflation 3.2 % 2.7 % 3.5 % 3.3 % 3.3 % Discount interest rate after taxes 12.0 % Growth rate after twenty years 3.2 % December 31, 2018 2019 2020 2021 2022 2023 Interest rate on investments 4.6 % 5.7 % 5.7 % 6.5 % 6.3 % Borrowing rate 6.3 % 6.3 % 6.3 % 6.3 % 6.3 % Growth in income from commissions 1.0 % 9.4 % 7.5 % 7.8 % 6.8 % Growth in expenses 4.3 % 4.6 % 5.6 % 6.6 % 0.5 % Inflation 2.9 % 3.1 % 2.7 % 3.5 % 3.3 % Discount interest rate after taxes 13.0 % Growth rate after twenty years 3.1 %

OTHER INTANGIBLE ASSETS (Tables

OTHER INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER INTANGIBLE ASSETS
Disclosure of detailed information about other intangible assets	Below is the detail of the balances of other intangible assets as of December 31, 2019 and 2018: December 31, 2019 Accumulated Net book Description Cost amortization value Licenses, software and information technology applications purchased Ps. 1,917,602 Ps. (763,787) Ps. 1,153,815 Internally generated 607,130 (71,431) 535,699 Non-internally generated 1,310,472 (692,356) 618,116 Other intangibles assets Ps. 76,036 Ps. (23,360) Ps. 52,676 Internally generated 5,356 — 5,356 Non-internally generated 70,680 (23,360) 47,320 Total Ps. 1,993,638 Ps. (787,147) Ps. 1,206,491 December 31, 2018 Accumulated Net book Description Cost amortization value Licenses, software and information technology applications purchased Ps. 1,564,536 Ps. (583,782) Ps. 980,754 Internally generated 418,852 (46,424) 372,428 Non-internally generated 1,145,684 (537,358) 608,326 Other intangibles assets Ps. 69,613 Ps. (16,483) Ps. 53,130 Internally generated 2,673 — 2,673 Non-internally generated 66,940 (16,483) 50,457 Total Ps. 1,634,149 Ps. (600,265) Ps. 1,033,884

INCOME TAX (Tables)

INCOME TAX (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of income tax [Abstract]
Major Components Of Income Tax Expenses [Text Block]	The income tax expense for the years ended on December 31, 2019, 2018 and 2017 comprises the following: December 31, December 31, December 31, 2019 2018 2017 Current period income tax Ps. 1,564,056 Ps. 1,746,881 Ps. 1,276,458 Income tax surcharge (1) — 95,630 151,980 Subtotal current period taxes Ps. 1,564,056 Ps. 1,842,511 Ps. 1,428,438 Prior years adjustments (2) (16,931) (74,230) (117,568) Adjustment due to settlement of uncertain tax positions from prior years (22,113) 24,277 (7,367) Deferred taxes Deferred taxes current period 647,718 357,032 449,291 Deferred taxes - Prior years adjustments (3) (86,473) — — Subtotal deferred taxes Ps. 561,245 Ps. 357,032 Ps. 449,291 Total Ps. 2,086,257 Ps. 2,149,590 Ps. 1,752,794 (1) The income tax surcharge applicable to financial entities was declared unconstitutional for the year 2019. (2) In the year 2018 tax recovery includes Ps. 50,316 in Banco de Occidente. It was generated by the use of presumptive excesses of CREE for the years 2013 and 2014; it also includes Ps.17,812 in Corficolombiana for the reimbursement of income tax mainly from Episol and PISA Concessionaire. In the year 2017, it includes a Ps. 109,632 tax recovery at Banco de Bogotá for the years 2014, 2015 and 2016. (3) The figure corresponds to the recovery originated on the deferred tax reversal on the property, plant and equipment which had been subject to a tax base update in accordance to the rules of the normalization tax. Banco de Occidente recorded a recovery of Ps. 63,849 and Banco Popular of Ps. 24,914.
Reconciliation Between Effective Income Tax Explanatory [Text Block]	Years ended on: December 31, December 31, December 31, 2019 2018 2017 Profit before income tax Ps. 7,451,711 Ps. 7,334,141 Ps. 4,915,227 Enacted tax rate in Colombia 33 % 37 % 40 % Theoretical income tax expense 2,459,065 2,713,632 1,966,091 Nondeductible expenses 484,615 373,918 387,933 Tax losses considered non recoverable for income tax purpose 54,698 100,249 96,266 Presumptive income considered non recoverable for income tax purpose 7,071 33,296 7,991 Wealth tax — — 40,762 Nontaxable dividends (24,172) (23,457) (19,587) Nontaxable income under equity method in associates (69,399) (39,901) (68,026) Profit (loss) on sales or appraisal of investment (1,167) (2,148) (16,584) Nontaxable interest income and other income (19,088) (212,992) (137,312) Other nontaxable income (339,253) (167,091) (155,010) Revenues taxable at different tax rate (5,851) 15,378 (658) Difference from expenses deductibles at different tax rate — (11,060) (11,822) Tax benefits in the acquisition of property and equipment (42,375) (22,715) (20,585) Tax Discounts (1) (80,742) — — Profits (losses) in Subsidiaries in tax free countries or with different tax rate (116,155) (168,117) (200,661) Effect on the deferred income tax due to changes in tax rates (2) (129,172) (308,534) (38,574) Prior year adjustments (16,931) (74,230) (117,568) Adjustments due to uncertain tax positions in previous year (22,113) 24,277 (7,367) Deferred taxes - Prior years adjustments (86,473) — — Other 33,699 (80,915) 47,505 Total tax expense of the year Ps. 2,086,257 Ps. 2,149,590 Ps. 1,752,794 Effective income tax rate 28.00 % 29.31 % 35.66 % (1) Corresponds to the industry and commerce tax that during 2019 could be used as a tax discount following the Law 1943 of 2018. Banco de Bogotá recorded Ps. 47,155, Banco de Occidente Ps. 7,068, Banco Popular Ps. 6,257, Banco AV Villas Ps. 10,444, Corficolombiana Ps. 8,498 and Grupo Aval Holding Ps. 1,230. (2) The effect is due to the application of the new tax rates established in Law 1943 of 2018, with which the deferred tax rates decreased from 33% to 30%. The impact on Corficolombiana was Ps. 233,865, in Banco de Bogotá it was Ps. 59,054, in Banco de Occidente Ps. 8,408, in Banco Av Villas Ps. 6,934 and in Banco Popular of Ps.362.
Tax Loss Carry Forward In Excess of Minimum Presumptive Income Explanatory [Text Block]	December 31, December 31, 2019 2018 Tax loss carry forwards expiring on: December 31, 2022 Ps. — Ps. 66 December 31, 2024 15 — December 31, 2025 — 1,216 December 31, 2029 174,370 173,118 December 31, 2030 279,545 271,685 December 31, 2031 156,521 — December 31, 2032 4,293 — Without expiration date 431,428 458,499 Subtotal Ps. 1,046,172 Ps. 904,584 Excess of presumptive income expiring on: December 31, 2019 Ps. — Ps. 61,152 December 31, 2020 44,318 45,738 December 31, 2021 60,302 61,296 December 31, 2022 51,056 51,077 December 31, 2023 58,965 48,218 December 31, 2024 28,380 — Subtotal Ps. 243,021 Ps. 267,481 Total Ps. 1,289,193 Ps. 1,172,065
Disclosure of temporary difference, unused tax losses and unused tax credits [text block]	Year ended on December 31, 2019 Balance as of Change in Credited Credited Balance as of December 31, accounting (charged) to (charged) to Foreign exchange December 31, 2018 policies profit or loss OCI adjustments 2019 Deferred tax assets Debt securities at fair value Ps. 29,650 Ps. — Ps. (14,680) Ps. (4,540) Ps. 844 Ps. 11,274 Equity securities at fair value 622 — (1,129) 872 — 365 Derivative instruments 73,154 — 68,038 15,351 — 156,543 Allowance of investments securities 136 — 37 — — 173 Accounts receivable — — 147 — — 147 Allowance for accounts receivable 41,390 — 8,750 — 4 50,144 Loans and receivables 14,917 — (13,440) — 173 1,650 Allowance for impairment on loans and receivables 159,169 — 54,517 — (1,463) 212,223 Allowance for foreclosed assets 2,927 — (1,203) — 132 1,856 Property, plant and equipment costs 284,111 — 16,749 — 3,908 304,768 Depreciation of property, plant and equipment 20,903 — 15,180 — — 36,083 Investment property — — 18,323 — — 18,323 Deferred charges and of intangible assets 168,856 — (69,272) — — 99,584 Tax losses carry forward 299,201 — (24,518) (240,420) 22,253 56,516 Surplus of presumptive income 4,670 — 991 — — 5,661 Provisions 189,882 — 35,111 — (1,755) 223,238 Employee benefits 131,783 — (27,270) 15,308 546 120,367 Goodwill — — 859 — — 859 Deferred Income 2,587 — (2,587) — — — Financial assets in concession contracts 158,645 — 89,238 — — 247,883 Biological assets 104 — 282 (166) — 220 Lease agreements 8,592 649,307 (74,500) — 3,480 586,879 Other 271,950 — (3,989) 18,102 (595) 285,468 Subtotal Ps. 1,863,249 Ps. 649,307 Ps. 75,633 Ps. (195,492) Ps. 27,527 Ps. 2,420,224 Deferred tax liabilities Debt securities at fair value Ps. (49,937) Ps. — Ps. 43,565 Ps. (65,399) Ps. (3,343) Ps. (75,114) Equity securities at fair value (115,877) — 20,716 (10,773) 432 (105,502) Derivative instruments (17,565) — 17,410 (10,272) 3,163 (7,264) Accounts receivable (287,526) — 195,426 — — (92,100) Allowance of investments securities (23,150) — (62,434) — — (85,584) Loans and receivables (63,567) — 25,769 — (288) (38,086) Allowance for impairment on loans and receivables (270,947) — (163,948) — 2,188 (432,707) Foreclosed assets (92,416) — 2,140 — — (90,276) Provision for foreclosed assets (109,092) — 100,172 — 309 (8,611) Property plant and equipment costs (357,384) — 54,139 — 8,942 (294,303) Depreciation of property, plant and equipment (170,138) — (86,092) — (9,275) (265,505) Investment property — — (69,732) (333) — (70,065) Right-of-use — (636,017) 144,618 — (3,524) (494,923) Deferred charges and of intangible assets (621,878) — 539,796 — — (82,082) Provisions (24,280) — 21,285 — (6,413) (9,408) Employee benefits — — (28,020) 322 206 (27,492) Goodwill (193,030) — (29,483) — — (222,513) Deferred Income (116,034) — (11,189) — — (127,223) Financial assets in concession arrangements (898,741) — (1,182,031) — — (2,080,772) Biological assets (23,333) — (4,371) — — (27,704) Lease agreements (4,293) — (226,874) — — (231,167) Other (243,665) — 62,260 (1,235) 6,106 (176,534) Subtotal Ps. (3,682,853) Ps. (636,017) Ps. (636,878) Ps. (87,690) Ps. (1,497) Ps. (5,044,935) Total Ps. (1,819,604) Ps. 13,290 Ps. (561,245) Ps. (283,182) Ps. 26,030 Ps. (2,624,711) Year ended on December 31, 2018 Balance as of Change in Credited Credited Balance as of December 31, accounting (charged) to (charged) to Foreign exchange December 31, 2017 policies profit or loss OCI adjustments 2018 Deferred tax assets Debt securities at fair value Ps. 8,081 Ps. (2,431) Ps. 18,840 Ps. 4,563 Ps. 597 Ps. 29,650 Equity securities at fair value 8 102 512 — — 622 Derivative instruments 36,805 — (102,681) 185,803 (46,773) 73,154 Allowance of investments securities 366 31 (264) — 3 136 Allowance for accounts receivable 333 — 44,660 — (3,603) 41,390 Loans and receivables 71,938 64,527 (121,072) — (476) 14,917 Allowance for impairment on loans and receivables 66,127 68,513 13,808 — 10,721 159,169 Allowance for other accounts receivable 4,649 — (4,649) — — — Foreclosed assets 18,161 — (15,474) — 240 2,927 Property, plant and equipment costs 364,540 — (77,625) — (2,804) 284,111 Depreciation of property, plant and equipment 11,993 — 8,854 — 56 20,903 Deferred charges and of intangible assets 145,625 — 23,233 — (2) 168,856 Tax losses carry forward 332,354 — 365,698 (402,042) 3,191 299,201 Surplus of presumptive income 2,528 — 2,142 — — 4,670 Provisions 197,963 (11,038) 2,163 — 794 189,882 Employee benefits 98,924 — 41,406 (9,394) 847 131,783 Deferred income — 12,349 (9,762) — — 2,587 Financial assets in concession contracts 28,536 (6,322) 136,431 — — 158,645 Biological assets 169 — (65) — — 104 Lease agreements 8,042 — 625 — (75) 8,592 Other 123,645 (102) (6,161) 165,680 (11,112) 271,950 Subtotal Ps. 1,520,787 Ps. 125,629 Ps. 320,619 Ps. (55,390) Ps. (48,396) Ps. 1,863,249 Deferred tax liabilities Debt securities at fair value Ps. (44,492) Ps. 9,555 Ps. (14,843) Ps. 26 Ps. (183) Ps. (49,937) Equity securities at fair value (121,226) (298) 7,361 2,084 (3,798) (115,877) Derivative instruments (87,525) — 23,187 — 46,773 (17,565) Accounts receivable (306,774) (17) 17,677 1,588 — (287,526) Allowance of investments securities (182) 57 (23,025) — — (23,150) Loans and receivables (322,746) 3,668 256,357 — (846) (63,567) Allowance for impairment on loans and receivables (397,838) 204,100 (77,442) — 233 (270,947) Foreclosed assets (72,209) — (20,314) — 107 (92,416) Provision for foreclosed assets (41,654) — (67,096) — (342) (109,092) Property plant and equipment costs (363,814) — 11,305 — (4,875) (357,384) Depreciation of property, plant and equipment (179,877) — 9,908 — (169) (170,138) Deferred charges and of intangible assets (107,721) — (514,157) — — (621,878) Provisions (575) — (22,312) 304 (1,697) (24,280) Goodwill (169,675) — (23,355) — — (193,030) Deferred Income (40,534) 40,534 (116,034) — — (116,034) Financial assets in concession arrangements (700,738) (228,241) 30,238 — — (898,741) Biological assets (16,583) — (6,750) — — (23,333) Lease agreements (32,636) — 28,343 — — (4,293) Other (71,408) (779) (176,699) (11,271) 16,492 (243,665) Subtotal Ps. (3,078,207) Ps. 28,579 Ps. (677,651) Ps. (7,269) Ps. 51,695 Ps. (3,682,853) Total Ps. (1,557,420) Ps. 154,208 Ps. (357,032) Ps. (62,659) Ps. 3,299 Ps. (1,819,604) Year ended on December 31, 2017 Balance as of Credited Credited Balance as of December 31, (charged) to (charged) to Foreign exchange December 31, 2016 profit or loss OCI adjustments 2017 Deferred tax assets Debt securities at fair value Ps. 62,627 Ps. (30,580) Ps. (23,966) Ps. — Ps. 8,081 Equity securities at fair value 1,583 (1,254) (321) — 8 Derivative instruments 78,740 (41,935) — — 36,805 Accounts receivable 16,278 (15,589) — 10 699 Loans and receivables 6,014 65,924 — — 71,938 Allowance for impairment on loans and receivables 105,573 (39,446) — — 66,127 Allowance for other accounts receivable 6,219 (1,570) — — 4,649 Financial assets in concession contracts 25,837 2,571 — 128 28,536 Foreclosed assets 4,846 13,315 — — 18,161 Property, plant and equipment costs 296,269 68,271 — — 364,540 Depreciation of property, plant and equipment 5,699 6,294 — — 11,993 Biological assets 101 68 — — 169 Deferred charges and of intangible assets 113,817 30,922 — 886 145,625 Tax losses carry forward 385,855 (53,556) — 55 332,354 Surplus of presumptive income 19,480 (16,952) — — 2,528 Provisions 212,695 (17,649) — 2,917 197,963 Employee benefits 104,606 (29,658) 23,976 — 98,924 Deferred income 113,380 (113,380) — — — Lease agreements 9,160 (1,118) — — 8,042 Other 69,022 52,233 935 1,455 123,645 Subtotal Ps. 1,637,801 Ps. (123,089) Ps. 624 Ps. 5,451 Ps. 1,520,787 Deferred tax liabilities Debt securities at fair value Ps. (27,278) Ps. 29,105 Ps. (46,319) Ps. — Ps. (44,492) Equity securities at fair value (100,484) 302 33 (21,077) (121,226) Unrealized profits of foreign subsidiaries (22,029) — — 22,029 — Derivative instruments (67,974) (15,190) (4,361) — (87,525) Accounts receivable (260,621) (46,335) — 182 (306,774) Allowance of investments securities — — — (182) (182) Loans and receivables (268,747) (53,999) — — (322,746) Allowance for impairment on loans and receivables (275,785) (122,053) — — (397,838) Foreclosed assets (46,783) (25,426) — — (72,209) Provision for foreclosed assets (37,798) (3,856) — — (41,654) Property plant and equipment costs (400,180) 36,404 — (38) (363,814) Depreciation of property, plant and equipment (209,549) 30,948 — (1,276) (179,877) Deferred charges and of intangible assets (60,598) (47,123) — — (107,721) Provisions (471) (62) 116 (158) (575) Goodwill (86,036) (83,639) — — (169,675) Deferred Income (34,613) (5,921) — — (40,534) Financial assets in concession arrangements (718,496) 20,548 — (2,790) (700,738) Biological assets (6,806) (9,777) — — (16,583) Lease agreements — — — (32,636) (32,636) Other (65,400) (30,128) (11,053) 35,173 (71,408) Subtotal Ps. (2,689,648) Ps. (326,202) Ps. (61,584) Ps. (773) Ps. (3,078,207) Total Ps. (1,051,847) Ps. (449,291) Ps. (60,960) Ps. 4,678 Ps. (1,557,420)
Disclosure of deferred taxes [text block]	Gross Deferred tax Balances on Statement December 31, 2019 amounts Offset of financial position Deferred tax asset Ps. 2,420,224 Ps. (2,173,626) Ps. 246,598 Deferred tax liability (5,044,935) 2,173,626 (2,871,309) Net Ps. (2,624,711) Ps. — Ps. (2,624,711) Gross Deferred tax Balances on Statement December 31, 2018 amounts Offset of financial position Deferred tax asset Ps. 1,863,249 Ps. (1,521,911) Ps. 341,338 Deferred tax liability (3,682,853) 1,521,911 (2,160,942) Net Ps. (1,819,604) Ps. — Ps. (1,819,604) Grupo Aval estimates to recover its income tax assets and settle its income tax liabilities as shown below: Deferred tax December 31, 2019 December 31, 2018 Deferred tax asset recoverable before 12 months Ps. Ps. Deferred tax asset recoverable after 12 months Total Deferred tax asset Ps. Ps. Deferred tax liability to settle before 12 months Ps. Ps. Deferred tax liability to settle after 12 months Total Deferred tax liability Ps. Ps. Current tax December 31, 2019 December 31, 2018 Current tax asset recoverable before 12 months Ps. Ps. Current tax asset recoverable after 12 months Total Current tax asset Ps. Ps. Current tax liability to settle before 12 months Ps. Ps. Current tax liability to settle after 12 months Total Current tax liability Ps. Ps.
Disclosure of detailed information about the effects of the current and deferred income taxes in each component of Other Comprehensive Income [Text Block]	December 31, 2019 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes income income Net Hedging of net investments in foreign subsidiaries operations Ps. 95,329 Ps. — Ps. 145 Ps. 95,474 Hedging derivatives in foreign currency (50,318) — 18,221 (32,097) Hedging financial liabilities in foreign currency (47,942) 247,153 (229,627) (30,416) Cash Flow hedging 13,469 — (4,988) 8,481 Foreign currency translation differences for foreign operations 128,135 — (1,235) 126,900 Investment in associates and join ventures (9,061) — — (9,061) Debt financial instruments 426,300 — (69,707) 356,593 Subtotal Items that will be reclassified to profit or loss Ps. 555,912 Ps. 247,153 Ps. (287,191) Ps. 515,874 Items that will not be reclassified to profit or loss Effect of moving investment properties for own use Ps. 5,288 Ps. — Ps. (333) Ps. 4,955 Equity financial instruments 237,781 — (11,288) 226,493 Actuarial gains (losses) from defined benefit pension plans (61,222) — 15,630 (45,592) Subtotal Items that will not be reclassified to profit or loss Ps. 181,847 Ps. — Ps. 4,009 Ps. 185,856 Total “other comprehensive income” during the period Ps. 737,759 Ps. 247,153 Ps. (283,182) Ps. 701,730 December 31, 2018 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes Income income Net Hedging of net investments in foreign subsidiaries operations Ps. 1,124,732 Ps. — Ps. — Ps. 1,124,732 Hedging derivatives in foreign currency (547,310) 372,715 (227,807) (402,402) Hedging financial liabilities in foreign currency (576,881) — 176,378 (400,503) Cash Flow hedging (19,789) — 6,697 (13,092) Foreign currency translation differences for foreign operations (299,804) — (16,006) (315,810) Investment in associates and joint ventures (107,084) — 11,554 (95,530) Debt financial instruments 22,400 — (393) 22,007 Subtotal Items that will be reclassified to profit or loss Ps. (403,736) Ps. 372,715 Ps. (49,577) Ps. (80,598) Items that will not be reclassified to profit or loss Asset revaluation Ps. — Ps. — Ps. — Ps. — Equity financial instruments (134,084) — (5,891) (139,975) Actuarial gains (losses) from defined benefit pension plans 18,013 — (7,191) 10,822 Subtotal Items that will not be reclassified to profit or loss Ps. (116,071) Ps. — Ps. (13,082) Ps. (129,153) Total “other comprehensive income” during the period Ps. (519,807) Ps. 372,715 Ps. (62,659) Ps. (209,751) December 31, 2017 Current Deferred tax tax Amount (expense) (expense) Items that will be reclassified to profit or loss before taxes Income income Net Hedging of net investments in foreign subsidiaries operations Ps. (47,197) Ps. — Ps. — Ps. (47,197) Hedging derivatives in foreign currency 16,832 — (5,554) 11,278 Hedging financial liabilities in foreign currency 30,568 — (11,065) 19,503 Cash Flow hedging (2,340) — 969 (1,371) Foreign currency translation differences for foreign operations (91,497) (12,657) 956 (103,198) Debt financial instruments 284,480 — (69,743) 214,737 Investment in associates and joint ventures 1,128 — 116 1,244 Subtotal Items that will be reclassified to profit or loss Ps. 191,974 Ps. (12,657) Ps. (84,321) Ps. 94,996 Items that will not be reclassified to profit or loss Asset revaluation Ps. — Ps. — Ps. — Ps. — Equity financial instruments 57,245 — (720) 56,525 Actuarial gains (losses) from defined benefit pension plans (100,232) — 24,081 (76,151) Subtotal Items that will not be reclassified to profit or loss Ps. (42,987) Ps. — Ps. 23,361 Ps. (19,626) Total “other comprehensive income” during the period Ps. 148,987 Ps. (12,657) Ps. (60,960) Ps. 75,370
Disclosure of detailed information about uncertainties in open tax positions [Text Block]	December 31, 2019 December 31, 2018 Banco de Bogotá Ps. 99,808 Ps. 113,345 Banco de Occidente 7,358 6,095 Corficolombiana — 2,392 Total Ps. 107,166 Ps. 121,832
Disclosure of detailed information about the roll forward of tax uncertainties [Text Block]	December 31, December 31, December 31, 2019 2018 2017 Balance at the beginning of the year Ps. 121,832 Ps. 94,692 Ps. 104,156 Provisions increased during the year 837 11,904 18,039 Provisions used (4,301) (1,088) (873) Amounts reversed due to provisions not used (135) (2,960) (32,010) Financial cost (19,904) 16,421 7,477 Foreign exchange adjustments 8,836 2,863 (2,097) Balance at the end of the year Ps. 107,166 Ps. 121,832 Ps. 94,692
Disclosure of detailed information about the expiry of tax uncertainties [Text Block]	December 31, December 31, Year 2019 2018 2019 Ps. — Ps. 3,006 2020 — 27,968 2021 33,869 30,478 2022 36,049 27,276 2023 30,221 31,373 2024 2,445 1,579 2025 1,391 152 2026 2,736 — 2027 179 — 2028 277 — Total Ps. 107,166 Ps. 121,832

CUSTOMER DEPOSITS (Tables)

CUSTOMER DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Customer Deposits [Abstract]
Disclosure of detailed information about deposits [Text Block]	The following is the detail of the balances of the deposits received from Grupo Aval´s customer and subsidiaries in development of their deposit collection operations: Detail December 31, 2019 December 31, 2018 Demand Checking accounts Ps. 42,449,702 Ps. 39,702,878 Savings accounts 59,352,760 57,221,439 Other funds on demand 463,770 582,122 102,266,232 97,506,439 Term deposits Fixed term deposit certificates (1) 73,225,189 66,853,012 Total deposits 175,491,421 164,359,451 Per currency In Colombian Pesos 101,427,370 99,388,366 In foreign currency 54,963,501 48,478,108 Other 19,100,550 16,492,977 Total per currency Ps. 175,491,421 Ps. 164,359,451 (1) The amount of term deposits due over 12 months as December 31, 2019 is Ps. 23,808,900 and December 31, 2018 is Ps. 20,686,104.
Disclosure of detailed information about the effective interest rates which are accrued on customer deposits [Text Block]	The following is a summary of the effective interest rates which are accrued on customer deposits is as follows: December 31, 2019 Deposits In Colombian Pesos In foreign currency Rate Rate Minimum Maximum Minimum Maximum % % % % Interest-bearing checking accounts 0.04 % 2.50 % 0.03 % 5.50 % Saving accounts 0.01 % 6.03 % 0.02 % 8.00 % Fixed term deposit certificates 0.01 % 11.60 % 0.15 % 10.35 % December 31, 2018 Deposits In Colombian Pesos In foreign currency Rate Rate Minimum Maximum Minimum Maximum % % % % Interest-bearing checking accounts 0.04 % 4.76 % 0.25 % 5.50 % Saving accounts 0.01 % 6.00 % 0.05 % 8.00 % Fixed term deposit certificates 0.05 % 9.05 % 0.05 % 11.45 %
Disclosure of detailed information about concentration of deposits by economic sector [Text Block]	December 31, 2019 December 31, 2018 Amount % Amount % Commerce Ps. 24,234,289 14 % Ps. 27,454,858 17 % Financial 48,741,261 28 % 25,001,924 15 % Individuals 30,714,387 18 % 26,626,082 16 % Government and Colombian Government entities 16,670,646 9 % 20,817,529 13 % Manufacturing 3,192,627 2 % 8,634,657 5 % Real Estate 3,703,896 2 % 6,235,260 4 % Agriculture and livestock 1,256,291 1 % 2,200,313 1 % Colombian Municipalities 29,302 0 % 1,807,946 1 % Foreign Governments 681,466 0 % 652,670 1 % Other (1) 46,267,256 26 % 44,928,212 27 % Total Ps. 175,491,421 100 % Ps. 164,359,451 100 % December 31, 2019, includes deposits from, education sector of Ps. 2,422,713, services sector of Ps. 17,279,692, insurance sector of Ps. 1,353,557, tourism sector Ps. 501,073, transportation sector of Ps. 1,176,385 and others sector of Ps. 23,533,836.

FINANCIAL OBLIGATIONS (Tables)

FINANCIAL OBLIGATIONS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of deposits from financial obligations [abstract]
Disclosure of Detailed Information about Financial Obligations [Text Block]	The following is a summary of the financial obligations of Grupo Aval as of December 31, 2019 and 2018: December December 31, 2019 31, 2018 Local Currency Interbank funds Overnight funds Ps. 9,027 Ps. 4,152 Interbank funds purchased 1,595,504 173,274 Commitments to transfer open and closed repo operations 1,706,368 1,884,750 Commitments to transfer simultaneous operations 4,456,544 2,306,037 Commitments originated in short positions simultaneous operations 262,873 362,833 Total interbank funds Ps. 8,030,316 Ps. 4,731,046 Borrowings from banks and others Borrowings 2,192,128 1,964,408 Leases contracts* 1,539,871 — Letters of credit — 300 Bankers acceptances 17 217 Total borrowings from banks and others Ps. 3,732,016 Ps. 1,964,925 Foreign currency Interbank funds Overnight funds 6,283 — Interbank funds purchased 921,500 1,568,172 Commitments to transfer open and closed repo operations 282,380 514,860 Total interbank funds Ps. 1,210,163 Ps. 2,083,032 Borrowings from banks and others Borrowings 12,336,206 17,190,315 Leases contracts* 1,493,631 — Andean Development Corporation 551,198 384,758 Letters of credit 622,730 356,640 Bankers acceptances 1,008,485 664,429 Discoveries in bank current account 59,078 49,699 Total borrowings from banks and others Ps. 16,071,328 Ps. 18,645,841 Total interbank borrowings, overnight funds and borrowings from banks and others Ps. 29,043,823 Ps. 27,424,844 (*) Grupo Aval has initially adopted IFRS 16 as of January 1, 2019. According to the transition methods chosen, comparative information is not restated. See note 2(2.4)(A).
Disclosure of Detailed Information About Other Borrowings Explanatory [Text Block]	The details of the borrowings from these entities as of December 31, 2019, and 2018 and are as follows: Interest rates in force at cut off December 31, 2019 December 31, 2018 Banco de Comercio Exterior - “BANCOLDEX” Fix between 0.02% and 21.15%, DTF + 0.10% to 5.83%, IBR + 0.10% to 8.31%, LIBOR1 + 2.15% to 4.54%, LIBOR6 + 2.38% to 5.08% Ps. 1,326,045 Ps. 1,303,648 Fondo para el Financiamiento del Sector Agropecuario - “FINAGRO” Fix between 0.50% and 15.48%, DTF + 0.50% to 7.00% and IBR + 0.90% to 1.90% 338,195 278,025 Financiera de Desarrollo Territorial “FINDETER” Fix between 0.25% and 13.38%, DTF + 0.6% to 4.38%, IBR+ 0.40% to 3.90%, IPC+ 0.50% and 5.00% and LIBOR6 +4.51% and 4.81% 2,218,245 2,065,123 Total Ps. 3,882,485 Ps. 3,646,796
Disclosure of detailed information about bond issued [Text Block]	December December Issuer Issue Date 31, 2019 31, 2018 Maturity Date Interest Rate Local Currency Banco de Bogotá S.A. 23/02/2010 Ps. 137,598 Ps. 134,736 23/02/2020 CPI + 5.45% and UVR + 5.45% Banco de Occidente Between 22/09/2011 and 18/09/2019 3,246,333 3,143,903 Between 27/04/2020 and 14/12/2032 CPI + 1.75% a 4.65%, Fixed between 5.83% to 6.18% Corporación Financiera Colombiana S.A. Between 27/08/2009 and 27/08/2019 2,895,156 2,853,685 Between 29/01/2020 and 02/03/2043 CPI +2.16% to 5.99%, Fixed 7.10% Banco Popular Between 26/02/2013 and 13/02/2019 1,753,896 1,616,729 Between 14/02/2020 and 12/10/2026 CPI+ 2.90% to 4.13%; Fixed between 6.17% to 8.10% Grupo Aval Acciones y Valores Between 03/12/2009 and 14/11/2019 1,201,189 1,108,713 Between 28/06/2020 and 28/06/2042 CPI + 2.69% to 5.20% and Fixed 6.42% Peso denominated Total Ps. 9,234,172 Ps. 8,857,766 Foreign Currency Banco de Bogotá S.A. Under rule 144A. Between 19/02/2013 and 03/08/2017 7,109,822 7,042,678 Between 19/02/2023 and 03/08/2027 Fixed between 4.38% to 6.25% BAC Credomatic El Salvador Between 11/02/2013 and 19/08/2019 726,607 753,556 Between 11/02/2020 and 19/08/2024 Between 5.20% to 5.85% Honduras Between 12/05/2017 and 15/11/2019 320,162 205,017 Between 12/05/2020 and 11/04/2022 Between 0.75% to 9.50% Guatemala Between 09/07/2018 and 24/08/2018 — 14,025 Between 09/07/2019 and 26/08/2019 Between 4.25% to 5.50% BAC Credomatic Total Ps. 1,046,769 Ps. 972,598 Banco Bogotá and BAC Credomatic Total Ps. 8,156,591 Ps. 8,015,276 Grupo Aval Limited 19/09/2012 3,268,629 3,267,308 26/09/2022 Fixed 4.75% Corficolombiana 16/10/2019 1,258,876 — 16/10/2029 Fixed 3.75% Foreign Currency Total Ps. 12,684,096 Ps. 11,282,584 Total of Bonds Ps. 21,918,268 Ps. 20,140,350
Disclosure of detailed information About Future Maturities of Bonds [Text Block]	Liabilities Equity Total Notes Dividends payable Bonds issued Leases Subscribed and paid-in capital Additional paid-in capital Non-controlling interest Balance at December 31, 2016 Ps. 644,733 Ps. 18,568,236 Ps. 1,108,400 Ps. 22,281 Ps. 8,307,527 Ps. 9,057,669 Ps. 37,708,846 Cash flows from financing activities: Dividens paid to shareholders (1,307,525) — — — — — (1,307,525) Dividens paid to non-controlling interest (768,769) — — — — — (768,769) Issuance of debt securities — 4,548,108 — — — — 4,548,108 Payment of outstanding debt securities — (3,913,694) — — — — (3,913,694) Acquisition of NCI Without a change in control — — — — (4,096) — (4,096) Net cash used in financing activities (2,076,294) 634,414 — — (4,096) — (1,445,976) Cash flows from operating activities: Accrued interest — 1,162,203 — — — — 1,162,203 Interest paid — (1,205,741) — — — — (1,205,741) Other changes 2,021,602 (56,916) (53,395) — — (711,578) 1,199,713 Total liabilities related to other changes 2,021,602 (100,454) (53,395) — — (711,578) 1,156,175 Total equity related to other changes — — — — — 1,218,493 1,218,493 Balance at December 31, 2017 590,041 19,102,196 1,055,005 22,281 8,303,431 9,564,584 38,637,538 Cash flows from financing activities: Dividens paid to shareholders (1,128,535) — — — — — (1,128,535) Dividens paid to non-controlling interest (745,932) — — — — — (745,932) Issuance of debt securities — 1,095,892 — — — — 1,095,892 Payment of outstanding debt securities — (1,139,897) — — — — (1,139,897) Issuance of shares — — — — — 988,072 988,072 Equity transaction — — — — (12,674) (54,483) (67,157) Net cash used in financing activities (1,874,467) (44,005) — — (12,674) 933,589 (997,557) Cash flows from operating activities: Accrued interest — 1,162,699 — — — — 1,162,699 Interest paid — (922,968) — — — — (922,968) Other changes 1,819,736 842,429 (31,416) — — (749,987) 1,880,762 Total liabilities related to other changes 1,819,736 1,082,160 (31,416) — — (749,987) 2,120,493 Total equity related to other changes — — — — 181,579 2,016,453 2,198,032 Balance at December 31, 2018 535,310 20,140,351 1,023,589 22,281 8,472,336 11,764,639 41,958,506 Change in accounting policies on january 1, 2019 — — 2,225,545 — — — 2,225,545 Cash flows from financing activities: Dividens paid to shareholders (1,266,920) — — — — — (1,266,920) Dividens paid to non-controlling interest (804,302) — — — — — (804,302) Issuance of debt securities — 3,130,254 — — — — 3,130,254 Interest issuance of debt securities — 18,633 — — — — 18,633 Payment of outstanding debt securities — (1,544,225) — — — — (1,544,225) Leases — — (362,334) — — — (362,334) Equity transaction — — — — (26,570) (40,527) (67,097) Net cash used in financing activities (2,071,222) 1,604,662 (362,334) — (26,570) (40,527) (895,991) Cash flows from operating activities: Accrued interest — 1,220,437 205,627 — — — 1,426,064 Interest paid — (1,103,218) (194,589) — — — (1,297,808) Other Changes 2,167,023 56,037 135,665 — — (830,160) 1,528,564 Total liabilities related to other changes 2,167,023 173,255 146,703 — — (830,160) 1,656,821 Total equity related to other changes — — — — — 2,603,750 2,603,750 Balance at December 31, 2019 Ps. 631,111 Ps. 21,918,268 Ps. 3,033,502 Ps. 22,281 Ps. 8,445,766 Ps. 13,497,702 Ps. 47,548,631

EMPLOYEE BENEFITS (Tables)

EMPLOYEE BENEFITS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of defined benefit plans [abstract]
Disclosure of Defined Benefits Plans Explanatory [Text Block]	December 31, 2019 December 31, 2018 Short term Ps. 480,489 Ps. Post-employment 590,914 Long term 186,333 Total Ps. 1,257,736 Ps. 1,264,881 Plan Asset Ps. (22,756) Ps. — Net employee benefits Ps. 1,234,980 Ps. 1,264,881
Disclosure of net defined benefit liability (asset) [text block]	Post-employment and long-term benefits movements during the years ended at December 31, 2019, 2018 and 2017 are as follows: Post-Employment benefits Long-term Benefits December December December December December December 31, 2019 31, 2018 31, 2017 31, 2019 31, 2018 31, 2017 Balance at the beginning of the year Ps. 541,226 Ps. 604,110 Ps. 509,022 Ps. 242,335 Ps. 229,770 Ps. 191,112 Service costs 14,567 13,127 4,425 22,860 21,040 18,201 Interests cost 37,138 36,700 50,826 14,252 13,460 12,889 Gain on settlements — (18,300) 253 — — (112) Past Service Costs (1) 1,018 (191) 200 (49,400) 1,632 (3,961) Ps. 593,949 Ps. 635,446 Ps. 564,726 Ps. 230,047 Ps. 265,902 Ps. 218,129 Changes in actuarial assumptions from changes in demographic assumptions 7,407 6,136 (8,863) — 388 (1,432) Changes in actuarial assumptions from changes in financial assumptions 54,674 (24,149) 109,095 (13,008) 11,831 43,870 Ps. 62,081 Ps. (18,013) Ps. 100,232 Ps. (13,008) Ps. 12,219 Ps. 42,438 Payments to employees (63,580) (79,709) (59,866) (30,706) (35,786) (30,797) Effect of movements in exchange rates (1,536) 3,502 (982) — — — Liability balance at the end of the year Ps. 590,914 Ps. 541,226 Ps. 604,110 Ps. 186,333 Ps. 242,335 Ps. 229,770 Plan Assets Recognition of the active plan (21,474) — — — — — Interests income (318) — — — — — Remeasurements on plan assets (859) — — — — — Effect of movements in exchange rates (105) — — — — — Balance at the end of the year plan assets Ps. (22,756) Ps. — Ps. — Ps. — Ps. — Ps. — Net Balance at the end of the year Ps. 568,158 Ps. 541,226 Ps. 604,110 Ps. 186,333 Ps. 242,335 Ps. 229,770 (1) The variation includes the effect of a change in a long-term institutional benefit plan at Banco de Bogotá, which went from being a defined benefit plan to a defined contribution plan, through which the bank makes monthly contributions into a fund created for each employee.
Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits [Table Text Block]	December 31, 2019 December 31, 2018 Defined contribution plan Ps. 73,297 Ps. 88,147 Defined benefit plan 52,723 31,336
Disclosure of Detail Information of Variables Used to Calculate Obligation [Text Block]	December 31, December 31, Post-Employment Benefits 2019 2018 Discount interest rate 5.87 % 7.29 % Inflation rate 3.00 % 3.00 % Salary growth rate 4.00 % 3.00 % Pension growth rate 3.00 % 3.00 % Employee turnover rate (between service year 1 and 40 for men and women the following is the turnover rate) Tabla de Rotación Tabla de Rotación SoA 2003 (1) SoA 2003 (1) December 31, December 31, Long-Term Benefits 2019 2018 Discount interest rate 5.34 % 6.75 % Inflation rate 3.00 % 3.00 % Salary growth rate 4.00 % 3.00 % Pension growth rate N/A N/A Employee turnover rate (between service year 1 and 40 for men and women the following is the turnover rate) Tabla de Rotación Tabla de Rotación SoA 2003 (1) SoA 2003 (1) (1) For those entities where a sufficiently large statistic is not yet available to support the actuarial bases, the SoA2003 table is used as a reference. With this table, the probability of permanence of personnel in the entity is established, modified according to the population factor of each benefit.
Disclosure of sensitivity analysis for actuarial assumptions [text block]	-0.50 basic points At December 31, 2019 Post-Employment Long-Term Discount interest rate Ps. 24,833 Ps. 4,993 Salaries growth rate (5,057) (5,628) Retirement growth rate (14,827) N/A +0.50 basic points At December 31, 2019 Post-Employment Long-Term Discount interest rate Ps. (20,931) Ps. (4,721) Salaries growth rate 5,297 5,904 Retirement growth rate 18,921 N/A
Disclosure of information about maturity profile of defined benefit obligation [text block]	Payments for Post- Payments for Long- Year Employment term Benefits Ps. 65,527 Ps. 30,418 58,646 24,672 58,776 25,342 56,645 24,512 55,602 27,014 Years 2025 – 2029 257,815 114,490

LEGAL AND OTHER PROVISIONS (Tab

LEGAL AND OTHER PROVISIONS (Tables)	12 Months Ended
	Dec. 31, 2019
LEGAL AND OTHER PROVISIONS
Disclosure of legal and other provisions	For Legal Other Provisions Total Provisions Balance as of December 31, 2016 Ps. 155,749 Ps. 464,607 Ps. Provisions increase during the year 32,670 222,349 255,019 Use of provisions (15,012) (117,643) (132,655) Amounts reversed due to provisions not utilized (7,870) (42,459) (50,329) Reclassifications (184) 408 224 Balance as of December 31, 2017 Ps. 165,353 Ps. 527,262 Ps. 692,615 Impact of the adoption of IFRS 9 (1) — 16,217 16,217 Balance as of January 01, 2018 Ps. 165,353 Ps. 543,479 Ps. 708,832 Provisions increase during the year 98,473 190,686 289,159 Use of provisions (73,086) (149,026) (222,112) Amounts reversed due to provisions not utilized (64,562) (19,852) (84,414) Effect of movements in exchange rates (249) 4,072 3,823 Balance as of December 31, 2018 Ps. 125,929 Ps. 569,359 Ps. 695,288 Impact of the adoption of IFRS 16 (1) — 32,107 32,107 Balance as of January 01, 2019 Ps. 125,929 Ps. 601,466 Ps. 727,395 Provisions increase during the year 116,627 177,606 294,233 Use of provisions (34,603) (52,296) (86,899) Amounts reversed due to provisions not utilized (13,296) (51,905) (65,201) Effect of movements in exchange rates 23 (909) (886) Balance as of December 31, 2019 Ps. 194,680 Ps. 673,962 Ps. 868,642 (1) See Notes 2 (2.4 (A and C)). Estimated period of time to be canceled Legal provisions Other provisions Total Within twelve months Ps. 3,496 Ps. 71,966 Ps. 75,462 After twelve months 191,184 601,996 793,180

OTHER LIABILITIES (Tables)

OTHER LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER LIABILITIES
Disclosure of accounts payable and other liabilities	Accounts payable and other liabilities of December 31, 2019 and 2018 comprise the following: Items December 31, 2019 December 31, 2018 Suppliers and services payable Ps. 1,877,694 Ps. 1,846,831 Income received for third parties (1) 1,338,265 453,450 Cashier checks 789,680 690,195 Dividends payable 631,111 535,311 Transactions ACH and ATH 585,526 605,657 Contract liability related to concessions 539,584 535,960 Non-financial liabilities 507,513 478,833 Withholdings taxes and labor contributions 471,201 427,782 Commissions and fees 290,160 430,279 Collection service 282,184 314,785 Collection on behalf of third parties (2) 250,769 1,514,309 Cash Surplus 235,840 167,309 Affiliate establishments 169,807 335,078 Customer loyalty programs (3) 150,846 154,979 Tax levies 86,568 71,691 Checks drawn and not paid 46,220 48,864 Anticipated income 39,427 34,605 Canceled accounts 28,524 26,987 Contributions and affiliations 27,004 28,785 Insurance payables 26,767 48,505 Financial transactions tax 22,280 45,905 Promissory buyers 8,601 18,371 Leases 5,778 7,347 Compensation to customers 2,102 3,191 Deferred credits 1,075 938 Other liabilities 314,856 182,006 Total Ps. 8,729,382 Ps. 9,007,953 (1) The increase presented is due to advance payments made by the Agencia Nacional de Infraestructura (ANI) for Ps. 857,990, which correspond to the resources of the autonomous patrimony of future validities, collections of tolls and financial returns. (2) The decrease shown as of December 31, 2019 is due to the fact that most of the withholding tax collections were transferred to the tax authority in the same year, an event that had not taken place in 2018. (3) The amount of customer loyalty points not exchanged has a validity of two years after being granted, which in redemption or expiration will be recognized as income.
Disclosure of other liabilities to be cancelled	Other December 31, 2019 December 31, 2018 Liabilities to be canceled within twelve months 5,946,523 6,970,611 Liabilities to be canceled after twelve months 2,782,859 2,037,342 Total Ps. 8,729,382 Ps. 9,007,953

EQUITY ATTRIBUTABLE TO OWNERS_2

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of controlling interest equity [Abstract]
Disclosure of classes of share capital [text block]	Authorized, issued and outstanding shares as of December 31, 2019 and 2018 consisted of the following: December 31, 2019 December 31, 2018 Authorized shares 120,000,000,000 120,000,000,000 Subscribed fully paid shares 22,281,017,159 22,281,017,159 Total outstanding shares 22,281,017,159 22,281,017,159 The outstanding shares are as follows: Common voting shares (1) 15,137,789,974 15,164,816,696 Preferred non-voting shares (2) 7,143,227,185 7,116,200,463 (1) Common Voting shares with a nominal value of (Ps. 1) Colombian peso. (2) Since 2011, Grupo Aval allows its shareholders to convert their common shares into preferred shares. For the years ended December 31, 2019 and 2018, 27,026,722 and 8,364,069 common shares were converted into preferred shares, respectively. Preferred shares have the right to receive a preferential minimum dividend of one Colombian peso (Ps. 1) per semester per share. This preferential minimum dividend is only applicable when dividends declared for common shares are less than one Colombian peso (Ps. 1). Preferential minimum dividends are not cumulative.
Disclosure of reserves within equity [text block]	As of December 31, 2019, and 2018 the appropriation of retained earnings is as follows: December 31, 2019 December 31, 2018 Retained earnings Ps. 2,475,939 Ps. 2,321,729 Withholding Tax over dividends (14,344) — Legal reserve 11,140 11,140 Statutory and voluntary reserves 7,816,338 6,265,450 Ps. 10,289,073 Ps. 8,598,319
Disclosure of dividends [text block]	The dividends are decreed and paid to shareholders based on occasional reserves available to the Board, the dividends decreed were as follows December 31, 2018 December 31, 2017 December 31, 2016 Net income for the periods ended in Ps. 2,887,749 Ps. 2,001,178 Ps. 1,053,594 Cash dividends declared In the general assembly held in March 2019, 60.00 pesos per share payable in twelve installments of 5.00 pesos per share, from April 2019 to March 2020. In the general assembly held in March 2018, 48.00 pesos per share payable in twelve installments of 4.00 pesos per share, from April 2018 to March 2019. In the general assembly held in March 2017, 58.80 pesos per share payable in twelve installments of 4.90 pesos per share, from April 2017 to March 2018. Total outstanding shares 22,281,017,159 22,281,017,159 22,281,017,159 Total dividends declared Ps. 1,336,861 Ps. 1,069,489 Ps. 1,310,124
Disclosure of earnings per share [text block]	The following table summarizes the earnings per share for the year ended as of December 31, 2019, 2018 and 2017: December 31, 2019 December 31, 2018 December 31, 2017 Net income for the year Ps. 5,365,454 Ps. 5,184,551 Ps. 3,162,433 Less: participation of non- controlling interests (2,331,045) (2,271,857) (1,200,019) Net income attributable to owners of the parent 3,034,409 2,912,694 1,962,414 Less: preferred dividends declared — — — Less: Allocation of undistributed earnings to preferred stockholders (1)(2) (970,070) (929,656) (622,215) Net Income allocated to common shareholders for basic and diluted EPS Ps. 2,064,339 Ps. 1,983,038 Ps. 1,340,199 Weighted average number of common shares outstanding used in basic EPS calculation (2) 15,158,004,812 15,169,502,784 15,216,468,601 Basic and Diluted earnings per share to common shareholders (pesos) 136.188 130.725 88.076 Basic and Diluted earnings per ADS in Colombian pesos (3) 2,723.76 2,614.51 1,761.51 Weighted average of the common and preferred shares used in the calculation of earnings per basic share (common and preferred) 22,281,017,159 22,281,017,159 22,281,017,159 Basic earnings of the owners of the parent per share in Colombian pesos 136.188 130.725 88.076 (1) Based on a weighted average of preferred shares. (2) Averages based on an end of month number of preferred or common shares. (3) Each ADS represents 20 preferred shares.
Disclosure of detailed information about components of accumulated other comprehensive income [Table Text Block]	Components of Accumulated Other Comprehensive Income for the years ended December 31, 2019, 2018 and 2017 are as follows: Net gain (loss) on hedges of net investment in foreing operations Cash flow hedges Foreing currency translation differences from unhedged foreign operations Effect of moving investment properties for own use Unrealized gains (losses) debt securities Unrealized gains (losses) Equitysecurities Investments in associates and join ventures Actuarial gains(losses) Income tax Total comprehensive income, net of taxes Beginning balance 2016 Ps. (207,527) Ps. 7,786 Ps. (74,911) Ps. — Ps. (272,216) Ps. 489,884 Ps. 91,509 Ps. (32,225) Ps. 1,276,840 Ps. 1,279,140 Current-period change 203 (2,340) (91,497) — 284,480 57,245 1,128 (100,232) (73,617) 75,370 Ending balance 2017 Ps. (207,324) Ps. 5,446 Ps. (166,408) Ps. — Ps. 12,264 Ps. 547,129 Ps. 92,637 Ps. (132,457) Ps. 1,203,223 Ps. 1,354,510 Change in accounting policy — — — — 56,198 71,229 (3,691) — (19,723) 104,013 Current-period change 541 (19,789) (299,804) — (107,084) (134,084) 22,400 18,013 310,056 (209,751) Ending balance 2018 Ps. (206,783) Ps. (14,343) Ps. (466,212) Ps. — Ps. (38,622) Ps. 484,274 Ps. 111,346 Ps. (114,444) Ps. 1,493,556 Ps. 1,248,772 Current-period change (2,931) 13,469 128,135 5,288 426,300 237,781 (9,061) (61,222) (36,029) 701,730 Ending balance 2019 Ps. (209,714) Ps. (874) Ps. (338,077) Ps. 5,288 Ps. 387,678 Ps. 722,055 Ps. 102,285 Ps. (175,666) Ps. 1,457,527 Ps. 1,950,502 Non -controlling interest Owners of the parent Total comprehensive income, net of taxes Beginning balance 2016 Ps. 529,523 Ps. 749,617 Ps. 1,279,140 Current-period change 38,121 37,249 75,370 Ending balance 2017 Ps. 567,644 Ps. 786,866 Ps. 1,354,510 Change in accounting policy 58,180 45,833 104,013 Current-period change (73,825) (135,926) (209,751) Ending balance 2018 Ps. 551,999 Ps. 696,773 Ps. 1,248,772 Current-period change 305,056 396,674 701,730 Ending balance 2019 Ps. 857,055 Ps. 1,093,447 Ps. 1,950,502

NON-CONTROLLING INTEREST (Table

NON-CONTROLLING INTEREST (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of non-controlling interest [Abstract]
Disclosure of detailed information about financial information of non-controlling interest [Text Block]	The following table includes financial information regarding each subsidiary of Grupo Aval that has significant non-controlling interests at December 31, 2019 and 2018: December 31, 2019 Non-controlling Non-controlling Dividends paid to non- Non-controlling Interest share of interest share of controlling interest in Entity Country Interest equity net income the year Corporación Financiera Colombiana S.A. Colombia 61.37 % Ps. 6,045,690 Ps. 1,231,081 Ps. (319,429) Banco Bogotá S.A. Colombia 31.26 % 5,813,830 876,732 (381,111) Banco de Occidente S.A. Colombia 27.73 % 1,068,830 156,587 (78,235) Banco Comercial AV Villas S.A. Colombia 20.13 % 348,711 46,705 (16,508) Banco Popular S.A. Colombia 6.26 % 220,641 19,940 (9,019) Total Ps. 13,497,702 Ps. 2,331,045 Ps. (804,302) December 31, 2018 Non-controlling Non-controlling Dividends paid to non- Non-controlling Interest share of interest share of controlling interest in Entity Country Interest equity net income the year Corporación Financiera Colombiana S.A. Colombia 61.75 % Ps. 5,071,562 Ps. 1,222,634 Ps. (308,254) Banco Bogotá S.A. Colombia 31.26 % 5,851,536 858,253 (332,297) Banco de Occidente S.A. Colombia 27.73 % 305,790 110,321 (75,838) Banco Comercial AV Villas S.A. Colombia 20.13 % 324,151 43,896 (15,425) Banco Popular S.A. Colombia 6.26 % 211,600 36,753 (14,118) Total Ps. 11,764,639 Ps. 2,271,857 Ps. (745,932)
Disclosure of detailed information about subsidiary that has significant non controlling interests [Text Block]	The following table includes information regarding each subsidiary of Grupo Aval that has significant non-controlling interests to December 31, 2019 and 2018 (before eliminations): December 31, 2019 Cash Flow from Entity Assets Liabilities Total Income Net Income OCI - Controlling operating activities Corporación Financiera Colombiana S.A. Ps. 31,809,578 Ps. 21,841,524 Ps. 10,244,488 Ps. 2,004,164 Ps. 780,447 Ps. 2,006,112 Banco Bogotá S.A. 175,019,580 153,159,578 19,207,112 3,073,654 1,378,393 6,671,466 Banco de Occidente S.A. 42,577,698 37,708,620 4,296,870 568,059 102,338 (570,873) Banco Comercial AV Villas S.A. 15,207,537 13,412,397 1,823,204 236,624 62,949 231,652 Banco Popular S.A. Ps. 25,117,577 Ps. 22,047,597 Ps. 2,757,661 Ps. 302,120 Ps. 2,134 Ps. (931,478) December 31, 2018 Cash Flow from Entity Assets Liabilities Total Income Net Income OCI - Controlling operating activities Corporación Financiera Colombiana S.A. Ps. 26,240,636 Ps. 18,121,948 Ps. 9,159,971 Ps. 2,068,518 Ps. 505,807 Ps. 4,597,371 Banco Bogotá S.A. 163,302,510 143,634,735 17,725,706 3,131,213 853,134 2,868,435 Banco de Occidente S.A. 38,921,610 34,415,453 4,040,260 416,294 29,097 339,411 Banco Comercial AV Villas S.A. 14,207,481 12,587,301 1,724,332 216,468 38,065 858,440 Banco Popular S.A. Ps. 24,648,668 Ps. 21,757,734 Ps. 2,666,731 Ps. 354,961 Ps. (7,631) Ps. 1,106,042

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Commitments and Contingencies [Abstract]
Disclosure of Detailed Information About Commitments In Unused Lines of Credit [Text Block]	Loan commitments and financial guarantee contracts December 31, 2019 December 31, 2018 Notional amount Notional amount Guarantees Ps. 3,341,641 Ps. 3,446,601 Unused letters of credit 1,133,385 1,186,691 Unused limits of overdrafts 67,126 306,740 Unused credit card limits 23,125,249 20,816,061 Other 4,487,203 5,169,588 Total Ps. 32,154,604 Ps. 30,925,681
Disclosure of Detailed Information About Credit Commitments by Currency [Text Block]	December 31, 2019 December 31, 2018 Colombian Pesos Ps. 14,914,209 Ps. 14,918,915 U.S. dollars 13,750,968 12,885,921 Euro 3,292,845 2,892,670 Other 196,582 228,175 Total Ps. 32,154,604 Ps. 30,925,681

INCOME FROM CONTRACTS WITH CU_2

INCOME FROM CONTRACTS WITH CUSTOMERS (Tables)	12 Months Ended
	Dec. 31, 2019
Income From Contract With Customers [Abstract]
Disclosure of detailed information about commissions and fees of contracts [Text block]	Below is a detail of the income and expenses for commissions and fees of contracts with customers for the years ended as of December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Income from commissions and fees 2019 2018 2017 Commissions on banking services Ps. 3,006,506 Ps. 2,718,482 Ps. 2,567,704 Fees on credit cards 1,364,244 1,187,716 1,112,319 Pension and severance fund management 1,129,391 987,323 926,771 Trust activities 334,910 312,901 311,837 Storage services 161,298 156,638 169,815 Commissions on drafts, checks and checkbooks 50,026 49,645 60,768 Office network services 24,618 30,220 42,639 Other commissions 12,350 10,457 10,272 Total inco me from commissions and fees(*) Ps. 6,083,343 Ps. 5,453,382 Ps. 5,202,125 (*) See note 31.6 December 31, December 31, December 31, Expenses from commissions and fees 2019 2018 2017 Banking services Ps. (311,098) Ps. (307,191) Ps. (332,811) Sales and services commissions (184,481) (171,680) (119,987) Fees paid to pension funds sales forces (94,285) (75,130) (74,531) Information processing services of operators (17,969) (22,525) (23,039) Offices network services (8,508) (23,040) (29,874) Collection service of contributions to financial entities (1,177) (7,110) (5,618) Banks guarantees (18) (128) (88) Fiduciary businesses (61) (46) (41) Credit cards (6) (12) (2) Other (10,396) (6,901) (37,123) Total expenses from commissions and fees Ps. (627,999) Ps. (613,763) Ps. (623,114) Net income from commissions and fees Ps. 5,455,344 Ps. 4,839,619 Ps. 4,579,011
Schedule of incomes and cost for goods and services	Below is the detail of the income and cost for goods and services for the years ended as of December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Income from sales of goods and services 2019 2018 2017 Energy and gas E&G Ps. 4,524,903 Ps. 3,411,674 Ps. 2,908,292 Infrastructure 3,783,534 3,826,101 2,290,786 Hotels 366,835 332,749 236,760 Agribusiness 135,928 133,095 87,800 Others Services 205,813 239,801 132,833 Others operating income 139,575 182,594 136,379 Total income from sales of good and services (*) Ps. 9,156,588 Ps. 8,126,014 Ps. 5,792,850 (*) See note 31.6 December 31, December 31, December 31, Costs and expenses of sales goods and services 2019 2018 2017 Cost of sales of companies from non-financial sector Ps. (5,041,089) Ps. (3,812,993) Ps. (3,408,808) Allowance for impairment of loans and receivables (43,401) (21,829) (22,239) General and administrative expenses (659,262) (645,690) (668,616) Personnel expenses (555,038) (499,750) (481,892) Amortization (267,808) (317,035) (300,325) Depreciation (98,963) (100,388) (79,981) Depreciation right of use assets (30,425) — — Bonus payments (36,300) (34,503) (34,436) Commissions and fees expenses (30,885) (32,876) (24,361) Donations expenses (14,704) (14,320) (12,604) Labor severances (3,902) (2,718) (2,565) Total costs and expenses of sales goods and services Ps. (6,781,777) Ps. (5,482,102) Ps. (5,035,827) Gross profit from sales of goods and services Ps. 2,374,811 Ps. 2,643,912 Ps. 757,023

NET TRADING INCOME (Tables)

NET TRADING INCOME (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Net Trading Income [Abstract]
Disclosure of detailed information about net trading income [Text Block]	December 31, December 31, December 31, 2019 2018 2017 Trading investment income (1) Fixed income securities Ps. 270,310 Ps. 98,024 Ps. 218,994 Equities 349,526 57,477 177,448 Total trading investment income Ps. 619,836 Ps. 155,501 Ps. 396,442 Derivatives income Net income (loss) on financial derivatives (2) Ps. 19,932 Ps. 247,880 Ps. (75,224) Other trading income (3) 122,143 179,328 240,144 Total derivatives income Ps. 142,075 Ps. 427,208 Ps. 164,920 Total net trading income Ps. 761,911 Ps. 582,709 Ps. 561,362 (1) Includes net trading income from investment securities held for trading, that reflects the interest from investment in debt securities, gains/losses from mark-to-market valuation from investment in equity and debt securities and net income from trading activities. (2) Includes net trading income from derivatives, which reflects the gains/losses from mark-to-market valuation on trading derivatives. (3) Includes gains/losses from: (i) Net changes in the valuation of hedging derivatives from mark-to-market valuations from unhedged, (ii) the ineffective portion of the hedge, (iii) Transfers of due hedging derivatives from OCI to the statement of income.

OTHER INCOME AND EXPENSE (Table

OTHER INCOME AND EXPENSE (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of other income and expense [abstract]
Disclosure of general and administrative expense [text block]	Below is a detail of the other income and expense in the years ended December 31, 2019, 2018 and 2017: December 31, December 31, December 31, Other Income 2019 2018 2017 Foreign exchange gains (losses), net Ps. 312,267 Ps. 283,440 Ps. 424,483 Share of profit of equity accounted investees, net of tax 229,626 197,715 171,964 Net gain on sale of debt and equity securities (1) 198,562 1,104 51,712 Dividends 84,686 71,487 50,439 Gain on the sale of non-current assets held for sale 23,381 20,062 13,568 Gain on sale of property, plant and equipment (2) 24,381 390,472 10,581 Net gain in assets valuation 14,151 37,307 39,012 Other income 395,909 357,094 389,986 Total other income Ps. 1,282,963 Ps. 1,358,681 Ps. 1,151,745 (1) The increase of Ps. 197,458 is due to the realization of the gains recognized in OCI for the sale of fixed income investments. (2) The year 2018 includes the recognition of income from sales with subsequent leasing of assets in Banco de Bogota by Ps. 312,316 and Ps. 60,474 in Banco Popular . December 31, December 31, December 31, Other Expense 2019 2018 2017 Personnel expenses Ps. (4,085,396) Ps. (3,877,584) Ps. (3,671,117) Taxes and fees (914,476) (757,936) (731,316) Affiliation contributions and transfers (664,835) (511,811) (429,825) Consultancy, audit and other fees (661,645) (569,276) (460,978) Maintenance and repairs (458,522) (378,433) (392,271) Depreciation of tangible assets (416,946) (378,218) (383,911) Wealth tax (1) — — (101,988) Insurance (382,322) (375,611) (351,745) Marketing (351,104) (327,539) (314,657) Depreciation right of use assets (2) (292,771) — — Warehouse services (277,574) (270,223) (277,849) Amortization of intangible assets (191,768) (161,533) (137,497) Transportation services (184,720) (181,687) (166,429) Leases (Rent) (175,002) (476,590) (431,507) Outsourcing services (149,280) (128,495) (128,656) Cleaning and security services (137,721) (126,822) (131,451) Supplies and stationary (103,104) (85,128) (82,113) Data processing (83,542) (81,426) (73,872) Adaptation and installation (58,904) (55,815) (62,809) Travel expenses (58,663) (52,584) (48,193) Impairment losses other assets (3) (20,755) (166,300) (174,255) Loss from sale of non-current assets held for sale (4,392) (5,200) (6,957) Other (497,907) (402,822) (443,695) Total other expense Ps. (10,171,349) Ps. (9,371,033) Ps. (9,003,091) (1) Grupo Aval and its subsidiaries in Colombia were subject to wealth tax for the year 2017 by law 1739 of 2014. (2) The Group adopted IFRS 16 on January 1, 2019. (See Note 2.4A) The year 2018 includes the provision of investment in Concesionaria Ruta del Sol S.A.S at 100%.

ANALYSIS OF OPERATING SEGMENTS

ANALYSIS OF OPERATING SEGMENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of operating segments [abstract]
Disclosure of entity's operating segments [text block]	The following is the detail of the reportable financial information summarized for each segment as of December 31, 2019, 2018 and 2017: Statement of Financial Position December 31, 2019 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Assets Trading assets Ps. 4,199,830 Ps. 2,730,366 Ps. 284,790 Ps. 295,234 Ps. 1,729,563 Ps. 187 Ps. (126,302) Ps. 9,113,668 Investment securities 14,721,063 4,487,707 2,556,181 1,675,897 3,316,757 — (757,294) 26,000,311 Hedging derivatives assets 163,004 — — — 3,594 — — 166,598 Investments in associates and joint ventures 4,752,358 1,434,246 486,524 3,027 752,060 405 (6,440,658) 987,962 Loans, net 113,110,128 29,374,122 19,260,152 11,671,190 2,115,859 — (1,589,134) 173,942,317 Other assets 38,073,197 4,551,257 2,529,930 1,562,189 23,891,745 4,129,975 (6,116,560) 68,621,733 Total assets Ps. 175,019,580 Ps. 42,577,698 Ps. 25,117,577 Ps. 15,207,537 Ps. 31,809,578 Ps. 4,130,567 Ps. (15,029,948) Ps. 278,832,589 Liabilities Customer deposits 117,794,986 28,726,381 16,988,939 11,851,426 4,067,504 — (3,937,815) 175,491,421 Financial obligations 29,359,125 7,195,231 3,955,801 1,078,588 12,152,007 4,484,293 (3,380,469) 54,844,576 Other liabilities 6,005,467 1,787,008 1,102,857 482,383 5,622,013 519,887 (371,292) 15,148,323 Total liabilities Ps. 153,159,578 Ps. 37,708,620 Ps. 22,047,597 Ps. 13,412,397 Ps. 21,841,524 Ps. 5,004,180 Ps. (7,689,576) Ps. 245,484,320 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. Statement of income for 2019 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 12,279,546 Ps. 3,107,030 Ps. 2,297,087 Ps. 1,460,981 Ps. 407,843 Ps. 248 Ps. — Ps. 19,552,735 Income from commissions and fees 4,948,265 423,571 263,985 281,324 77,012 89,186 — 6,083,343 Income from sales of goods and services 107,012 58,947 — (5,466) 8,996,095 — — 9,156,588 Share of profit of equity accounted investees, net of tax 10,633 4,272 5,232 3,819 205,674 (4) — 229,626 Dividends 4,878 336 1,155 1,795 76,522 — — 84,686 Other income 1,183,179 262,541 97,372 53,340 348,779 2,967 — 1,948,178 Ps. 18,533,513 Ps. 3,856,697 Ps. 2,664,831 Ps. 1,795,793 Ps. 10,111,925 Ps. 92,397 Ps. — Ps. 37,055,156 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 95,675 Ps. 13,344 Ps. 13,411 Ps. 3,441 Ps. 128,352 Ps. 79 Ps. (254,302) Ps. — Income from commissions and fees 4,339 8,328 2,904 18,905 1,474 68,227 (104,177) — Income from sales of goods and services 1,968 164,635 — 5,466 5,866 — (177,935) — Share of profit of equity accounted investees, net of tax 513,721 246,576 73,370 (3,997) 1,665 — (831,335) — Dividends 5,288 2,022 2,925 2,053 105 — (12,393) — Other income 52,608 5,268 220 1,543 (4,899) 88,628 (143,368) — 673,599 440,173 92,830 27,411 132,563 156,934 (1,523,510) — Total income Ps. 19,207,112 Ps. 4,296,870 Ps. 2,757,661 Ps. 1,823,204 Ps. 10,244,488 Ps. 249,331 Ps. (1,523,510) Ps. 37,055,156 Expenses Interest expense Ps. (4,879,514) Ps. (1,228,385) Ps. (880,056) Ps. (421,033) Ps. (925,197) Ps. (240,723) Ps. 307,691 Ps. (8,267,217) Loans and other accounts receivable (2,767,818) (867,085) (350,302) (269,269) (11,598) — 72,092 (4,193,980) Depreciation and amortization (631,835) (107,651) (82,028) (65,455) (7,789) (10,135) 3,408 (901,485) Expenses from commissions and fees (382,972) (85,289) (65,713) (137,275) (12,737) (4,419) 60,406 (627,999) Costs and expenses of sales goods and services (235,928) (305,866) — — (6,256,833) 20,755 (3,905) (6,781,777) Administrative expenses (3,406,083) (725,963) (640,153) (392,862) (85,533) (279,356) 575,643 (4,954,307) Other expense (2,830,267) (347,474) (384,756) (195,290) (137,701) 366,572 (347,764) (3,876,680) Income tax expense (999,041) (61,098) (52,533) (105,396) (802,936) (62,399) (2,854) (2,086,257) Total expenses (16,133,458) (3,728,811) (2,455,541) (1,586,580) (8,240,324) (209,705) 664,717 (31,689,702) Net income for the year Ps. 3,073,654 Ps. 568,059 Ps. 302,120 Ps. 236,624 Ps. 2,004,164 Ps. 39,626 Ps. (858,793) Ps. 5,365,454 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Revenue from contracts with customers (2) Ps. 5,060,573 Ps. 651,537 Ps. 266,889 Ps. 300,229 Ps. 8,679,277 Ps. 437,415 Ps. (155,989) Ps. 15,239,931 Timing of revenue recognition At a point in time 232,277 31,763 22,784 83,687 116,974 436,504 (365,398) 558,591 Over time 4,828,296 619,774 244,105 216,542 8,562,303 911 209,409 14,681,340 (1) Includes Grupo Aval Holding, Grupo Aval Limited and ATH Negocio Conjunto. (2) Income from contracts with customers, see note 28. Statement of Financial Position December 31, 2018 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Assets Trading assets Ps. 3,086,060 Ps. 1,670,934 Ps. 235,283 Ps. 302,226 Ps. 1,987,205 Ps. 212 Ps. (77,608) Ps. 7,204,312 Investment securities 11,238,754 5,070,964 2,900,778 1,225,551 3,189,297 — (595,185) 23,030,159 Hedging derivatives assets 32,981 — — — 43 — (2,886) 30,138 Investments in associates and joint ventures 4,157,015 1,247,935 396,289 2,347 759,222 — (5,580,065) 982,743 Loans, net 111,018,238 26,996,654 18,287,166 11,027,826 2,575,561 — (1,219,791) 168,685,654 Other assets 33,769,462 3,935,123 2,829,152 1,649,531 17,729,308 3,924,117 (4,094,546) 59,742,147 Total assets Ps. 163,302,510 Ps. 38,921,610 Ps. 24,648,668 Ps. 14,207,481 Ps. 26,240,636 Ps. 3,924,329 Ps. (11,570,081) Ps. 259,675,153 Liabilities Customer deposits Ps. 108,404,522 Ps. 25,592,232 Ps. 17,571,388 Ps. 11,425,400 Ps. 3,805,028 Ps. — Ps. (2,439,119) Ps. 164,359,451 Financial obligations 28,560,065 6,881,717 3,139,013 647,872 9,673,342 4,376,021 (2,066,040) 51,211,990 Other liabilities 6,670,148 1,941,504 1,047,333 514,029 4,643,578 443,591 (710,819) 14,549,364 Total liabilities Ps. 143,634,735 Ps. 34,415,453 Ps. 21,757,734 Ps. 12,587,301 Ps. 18,121,948 Ps. 4,819,612 Ps. (5,215,978) Ps. 230,120,805 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. Statement of Income for the year 2018 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 11,136,903 Ps. 3,087,525 Ps. 2,192,941 Ps. 1,383,023 Ps. 556,068 Ps. 176 Ps. — Ps. 18,356,636 Income from commissions and fees 4,394,989 399,785 245,721 261,769 77,936 73,182 — 5,453,382 Income from sales of goods and services 130,007 65,916 12,124 — 7,917,967 — — 8,126,014 Share of profit of equity accounted investees, net of tax 6,126 2,688 3,083 2,550 183,268 — — 197,715 Dividends 4,855 286 2,314 1,399 62,633 — — 71,487 Other income 1,211,601 152,866 132,562 53,724 324,524 2,714 — 1,877,991 Ps. 16,884,481 Ps. 3,709,066 Ps. 2,588,745 Ps. 1,702,465 Ps. 9,122,396 Ps. 76,072 Ps. — Ps. 34,083,225 Banco de Banco de Banco Popular Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 58,463 Ps. 10,971 Ps. 3,681 Ps. 1,726 Ps. 30,590 Ps. 144 Ps. (105,575) Ps. — Income from commissions and fees 5,977 9,395 6,760 19,992 1,350 80,403 (123,877) — Income from sales of goods and services 580 109,927 — — 5,767 — (116,274) — Share of profit of equity accounted investees, net of tax 562,070 180,142 57,340 (3,230) 1,151 — (797,473) — Dividends 12,894 2,414 9,355 1,614 1,211 — (27,488) — Other income 201,241 18,345 850 1,765 (2,494) 53,808 (273,515) — 841,225 331,194 77,986 21,867 37,575 134,355 (1,444,202) — Total income Ps. 17,725,706 Ps. 4,040,260 Ps. 2,666,731 Ps. 1,724,332 Ps. 9,159,971 Ps. 210,427 Ps. (1,444,202) Ps. 34,083,225 Expenses Interest expense Ps. (4,328,845) Ps. (1,135,189) Ps. (850,707) Ps. (370,015) Ps. (781,037) Ps. (222,519) Ps. 203,471 Ps. (7,484,841) Loans and other accounts receivable (2,610,893) (1,014,420) (186,622) (297,265) (40,772) — — (4,149,972) Depreciation and amortization (363,264) (77,174) (50,819) (33,438) (7,750) (7,306) — (539,751) Expenses from commissions and fees (362,810) (71,570) (89,515) (107,759) (13,322) (2,511) 33,724 (613,763) Costs and expenses of sales goods and services (254,904) (242,943) (13,962) — (5,011,808) 5,409 36,106 (5,482,102) Administrative expenses (3,171,147) (699,653) (564,289) (408,079) (95,338) (206,690) 504,736 (4,640,460) Other expense (2,552,588) (418,471) (402,933) (190,005) (233,165) 283,719 (324,752) (3,838,195) Income tax expense (950,042) 35,454 (152,923) (101,303) (908,261) (70,145) (2,370) (2,149,590) Total expenses (14,594,493) (3,623,966) (2,311,770) (1,507,864) (7,091,453) (220,043) 450,915 (28,898,674) Net income for the year Ps. 3,131,213 Ps. 416,294 Ps. 354,961 Ps. 216,468 Ps. 2,068,518 Ps. (9,616) Ps. (993,287) Ps. 5,184,551 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Revenue from contracts with customers (2) Ps. 4,530,757 Ps. 582,571 Ps. 262,703 Ps. 281,761 Ps. 7,770,108 Ps. 437,292 Ps. (285,796) Ps. 13,579,396 Timing of revenue recognition At a point in time 1,156,598 126,524 72,090 159,147 167,440 436,697 (377,760) 1,740,736 Over time 3,374,159 456,047 190,613 122,614 7,602,668 595 91,964 11,838,660 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto. (2) Income from contracts with customers, see note 28. Statement of Income of the year 2017 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total External income Interest income Ps. 11,241,897 Ps. 3,450,056 Ps. 2,196,753 Ps. 1,305,784 Ps. 547,028 Ps. 315 Ps. — Ps. 18,741,833 Income from commissions and fees 4,187,221 396,658 224,233 250,824 95,086 48,103 — 5,202,125 Income from sales of goods and services 104,277 62,294 58,184 — 5,568,095 — — 5,792,850 Share of profit of equity accounted investees, net of tax 5,847 2,402 2,622 2,043 159,050 — — 171,964 Dividends 1,321 370 1,991 1,514 45,243 — — 50,439 Other income 954,355 194,155 63,157 62,642 423,255 3,077 — 1,700,641 Ps. 16,494,918 Ps. 4,105,935 Ps. 2,546,940 Ps. 1,622,807 Ps. 6,837,757 Ps. 51,495 Ps. — Ps. 31,659,852 Banco de Banco de Banco Banco AV Corficolombiana Other Bogotá S.A. Occidente S.A. Popular S.A. Villas S.A. S.A. segments (1) Eliminations Total Intersegment income Interest income Ps. 72,910 Ps. 1,818 Ps. 1,047 Ps. 4,797 Ps. 62,097 Ps. 277 Ps. (142,946) Ps. — Income from commissions and fees 2,988 5,171 4,133 15,065 1,339 95,312 (124,008) — Income from sales of goods and services 15 78,286 — — 6,992 14,060 (99,353) — Share of profit of equity accounted investees, net of tax 36,782 139,555 (376) 132 159 — (176,252) — Dividends 3,101 5,494 6,810 1,170 1,244 — (17,819) — Other income 24,536 2,494 5,978 1,977 (18,243) 62,335 (79,077) — 140,332 232,818 17,592 23,141 53,588 171,984 (639,455) — Total income Ps. 16,635,250 Ps. 4,338,753 Ps. 2,564,532 Ps. 1,645,948 Ps. 6,891,345 Ps. 223,479 Ps. (639,455) Ps. 31,659,852 Expenses Interest expense Ps. (4,594,100) Ps. (1,388,144) Ps. (977,441) Ps. (423,069) Ps. (852,501) Ps. (216,694) Ps. 224,250 Ps. (8,227,699) Loans and other accounts receivable (2,459,293) (993,350) (258,926) (327,833) (79,932) — — (4,119,334) Depreciation and amortization (361,621) (69,255) (45,417) (29,897) (5,881) (9,337) — (521,408) Expenses from commissions and fees (351,073) (94,089) (86,228) (108,572) (10,772) (2,550) 30,170 (623,114) Costs and expenses of sales goods and services (238,836) (206,532) (26,764) — (4,577,538) 5,901 7,942 (5,035,827) Administrative expenses (3,035,346) (703,106) (520,204) (375,522) (119,271) (229,821) 470,122 (4,513,148) Other expense (2,491,823) (390,812) (334,944) (180,186) (241,854) 311,137 (375,613) (3,704,095) Income tax expense (970,207) (115,778) (108,914) (63,174) (440,043) (51,957) (2,721) (1,752,794) Total expenses (14,502,299) (3,961,066) (2,358,838) (1,508,253) (6,327,792) (193,321) 354,150 (28,497,419) Net income for the year Ps. 2,132,951 Ps. 377,687 Ps. 205,694 Ps. 137,695 Ps. 563,553 Ps. 30,158 Ps. (285,305) Ps. 3,162,433 (1) Includes Grupo Aval Holding, Grupo Aval Limited, Grupo Aval International Limited and ATH Negocio Conjunto.
Disclosure of detailed information about revenues for each individual country for which revenues are significant [Text Block]	Grupo Aval’s revenues for each individual country for which revenues are significant, are the following during the years ended December 31, 2019, 2018 and 2017: December 31, 2019 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 12,891,567 Ps. 1,418,362 Ps. 2,128,292 Ps. 1,058,404 Ps. 950,760 Ps. 391,889 Ps. 660,029 Ps. 6,162 Ps. 47,270 Ps. 19,552,735 Income from commissions and fees 3,506,114 352,996 1,173,411 278,198 344,010 170,261 223,982 — 34,371 6,083,343 Storage services 161,298 — — — — — — — — 161,298 Trust activities 334,910 — — — — — — — — 334,910 Pension and severance fund management 1,088,849 — 31,711 — 8,831 — — — — 1,129,391 Fees on credit cards 606,581 45,016 406,458 69,367 99,055 50,568 63,467 — 23,732 1,364,244 Office network services 24,618 — — — — — — — — 24,618 Commissions on drafts, checks and checkbooks 49,546 480 — — — — — — — 50,026 Other commissions 12,350 — — — — — — — — 12,350 Commissions on banking services 1,227,962 307,500 735,242 208,831 236,124 119,693 160,515 — 10,639 3,006,506 Share of profit of equity accounted investees, net of tax 229,626 — — — — — — — — 229,626 Dividends 80,443 2,666 — 870 707 — — — — 84,686 Income from sales of goods and services 8,710,572 669 — — — — — 445,347 — 9,156,588 Energy and gas E&G 4,102,181 — — — — — — 422,722 — 4,524,903 Infrastructure 3,783,534 — — — — — — — — 3,783,534 Hotels 343,541 669 — — — — — 22,625 — 366,835 Agribusiness 135,928 — — — — — — — — 135,928 Others Services 205,813 — — — — — — — — 205,813 Others operating income 139,575 — — — — — — — — 139,575 Other income 1,484,085 44,292 72,026 147,776 59,667 114,740 5,486 6,635 13,471 1,948,178 Total income Ps. 26,902,407 Ps. 1,818,985 Ps. 3,373,729 Ps. 1,485,248 Ps. 1,355,144 Ps. 676,890 Ps. 889,497 Ps. 458,144 Ps. 95,112 Ps. 37,055,156 December 31, 2018 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 12,721,895 Ps. 1,205,059 Ps. 1,797,230 Ps. 882,648 Ps. 763,975 Ps. 423,149 Ps. 544,267 Ps. 107 Ps. 18,306 Ps. 18,356,636 Income from commissions and fees 3,238,516 309,546 999,648 260,158 275,111 157,034 194,870 — 18,499 5,453,382 Storage services 156,638 — — — — — — — — 156,638 Trust activities 312,901 — — — — — — — — 312,901 Pension and severance fund management 955,912 — 25,516 — 5,895 — — — — 987,323 Fees on credit cards 557,533 42,560 343,791 57,929 81,512 41,552 54,590 — 8,249 1,187,716 Office network services 30,220 — — — — — — — — 30,220 Commissions on drafts, checks and checkbooks 49,196 449 — — — — — — — 49,645 Other commissions 10,457 — — — — — — — — 10,457 Commissions on banking services 1,165,659 266,537 630,341 202,229 187,704 115,482 140,280 — 10,250 2,718,482 Share of profit of equity accounted investees, net of tax 197,715 — — — — — — — — 197,715 Dividends 66,980 3,143 — 713 651 — — — — 71,487 Income from sales of goods and services 7,861,701 575 — — — — — 263,738 — 8,126,014 Energy and gas E&G 3,168,649 — — — — — — 243,025 — 3,411,674 Infrastructure 3,826,101 — — — — — — — — 3,826,101 Hotels 311,461 575 — — — — — 20,713 — 332,749 Agribusiness 133,095 — — — — — — — — 133,095 Others Services 239,801 — — — — — — — — 239,801 Others operating income 182,594 — — — — — — — — 182,594 Other income 1,307,370 9,302 269,119 130,052 55,773 90,549 8,060 3,297 4,469 1,877,991 Total income Ps. 25,394,177 Ps. 1,527,625 Ps. 3,065,997 Ps. 1,273,571 Ps. 1,095,510 Ps. 670,732 Ps. 747,197 Ps. 267,142 Ps. 41,274 Ps. 34,083,225 December 31, 2017 Country Colombia Panamá Costa Rica Guatemala Honduras Nicaragua El Salvador Perú Other countries Total income Interest income Ps. 13,512,361 Ps. 1,076,412 Ps. 1,647,600 Ps. 830,179 Ps. 759,401 Ps. 413,925 Ps. 485,703 Ps. 87 Ps. 16,165 Ps. 18,741,833 Income from commissions and fees 3,122,497 294,630 922,251 233,758 255,317 164,030 185,761 — 23,881 5,202,125 Storage services 169,815 — — — — — — — — 169,815 Trust activities 311,837 — — — — — — — — 311,837 Pension and severance fund management 898,537 — 23,342 — 4,892 — — — — 926,771 Fees on credit cards 534,209 23,247 320,208 61,599 66,210 50,344 51,686 — 4,816 1,112,319 Office network services 42,639 — — — — — — — — 42,639 Commissions on drafts, checks and checkbooks 60,268 500 — — — — — — — 60,768 Other commissions 10,272 — — — — — — — — 10,272 Commissions on banking services 1,094,920 270,883 578,701 172,159 184,215 113,686 134,075 — 19,065 2,567,704 Share of profit of equity accounted investees, net of tax 171,964 — — — — — — — — 171,964 Dividends 50,023 416 — — — — — — — 50,439 Income from sales of goods and services 5,570,536 409 — — — — — 221,906 — 5,792,850 Energy and gas E&G 2,701,124 — — — — — — 207,168 — 2,908,292 Infrastructure 2,290,786 — — — — — — — — 2,290,786 Hotels 221,613 409 — — — — — 14,738 — 236,760 Agribusiness 87,800 — — — — — — — — 87,800 Others Services 132,833 — — — — — — — — 132,833 Others operating income 136,379 — — — — — — — — 136,379 Other income 1,267,920 38,701 182,258 68,709 42,229 84,453 4,812 6,345 5,214 1,700,641 Total income Ps. 23,695,301 Ps. 1,410,568 Ps. 2,752,109 Ps. 1,132,646 Ps. 1,056,947 Ps. 662,408 Ps. 676,276 Ps. 228,338 Ps. 45,260 Ps. 31,659,852
Disclosure of detailed information about non-current assets for each individual country for which revenues are significant [Text Block]	December 31, 2019 (1) Own – use Property, plant and equipment, net (2) Intangible assets Colombia Ps. 4,441,733 Ps. 10,299,669 Panamá 210,348 4,005,751 Costa Rica 403,107 101,324 Guatemala 139,793 17,981 Other countries 588,253 1,651,841 Total Ps. 5,783,234 Ps. 16,076,566 December 31, 2018 (1) Own – use Property, plant and equipment, net (2) Intangible assets Colombia Ps. 4,450,061 Ps. 8,625,595 Panamá 213,090 3,979,443 Costa Rica 378,554 100,631 Guatemala 108,167 15,988 Other countries 513,871 1,145,302 Total Ps. 5,663,743 Ps. 13,866,959 (1) see note 15.1 (2) see notes 16 to 18.

UNCONSOLIDATED STRUCTURED ENT_2

UNCONSOLIDATED STRUCTURED ENTITIES (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of unconsolidated structured entities [abstract]
Disclosure of interests in unconsolidated structured entities [text block]	Grupo Aval’s managed December 31, 2019 Securitizations funds Total Grupo Aval’s interest-assets Investments at fair value through profit or loss Ps. 10,102 Ps. 3,486,646 Ps. 3,496,748 Other account receivables — 40,149 40,149 Total assets in relation to Grupo Aval’s interests in the unconsolidated structured entities 10,102 3,526,795 3,536,897 Grupo Aval’s maximum exposure (*) Ps. 10,102 Ps. 3,526,795 Ps. 3,536,897 (*) Represent 1.26%, respectively of the Grupo Aval’s managed funds total assets. Grupo Aval’s managed December 31, 2018 Securitizations funds Total Grupo Aval’s interest-assets Investments at fair value through profit or loss Ps. 13,733 Ps. 2,181,725 Ps. 2,195,458 Other account receivables — 34,431 34,431 Total assets in relation to Grupo Aval’s interests in the unconsolidated structured entities 13,733 2,216,156 2,229,889 Grupo Aval’s maximum exposure (*) Ps. 13,733 Ps. 2,216,156 Ps. 2,229,889 (*) Represent 1.35%, respectively of the Grupo Aval’s managed funds total assets.

RELATED PARTIES (Tables)

RELATED PARTIES (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Related Parties [Abstract]
Disclosure of detailed information about balances with related parties [text block]	Balances as of December 31, 2019 and 2018, with related parties, are detailed in the following tables: Individuals Entities Entities Individuals with with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2019 Aval (*) personnel (*) ventures individuals individuals Assets Cash and equivalents Ps. — Ps. — Ps. — Ps. — Ps. — Financial assets in investments — — 1,006,340 — — Financial assets in credit operations 2,936 7,775 1,148,522 1,513,287 122,964 Accounts receivable 9 14 12,243 2,958 241 Other assets — — 14,118 3,232 — Liabilities Deposits Ps. 273,224 Ps. 27,000 Ps. 97,097 Ps. 1,290,574 Ps. 7,032 Accounts payable 561 347 9,165 514,976 21 Financial obligations 3 15 72 30,000 — Other liabilities — — 1,937 714 — (*) Include family members Individuals Entities Entities Individuals with with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2018 Aval (*) personnel (*) ventures individuals individuals Assets Cash and equivalents Ps. — Ps. — Ps. — Ps. — Ps. — Financial assets in investments — — 920,170 — — Financial assets in credit operations 2,680 17,062 1,443,476 1,513,218 102,958 Accounts receivable 9 58 8,105 3,329 17 Other assets — — 20,348 5,030 — Liabilities Deposits Ps. 100,199 Ps. 21,726 Ps. 70,960 Ps. 570,558 Ps. 23,470 Accounts payable 38 686 10,114 291,328 1 Financial obligations 1 3 102 7 — Other liabilities — — 25,040 194 3 (*) Include family members
Disclosure of transactions between related parties [text block]	Transactions during the years ended as of December 31, 2019, 2018 and 2017, with related parties are as follows: a. Profit or loss Individuals Entities Individuals with Entities with control Key Associates Entities significant over Grupo management and joint controlled by influence by December 31, 2019 Aval (1) personnel (1) ventures (2) individuals individuals Income Interest income Ps. 290 Ps. Ps. Ps. Ps. Fee income and commissions Leases — — — — Other income Expenses Financial expenses Ps. (169) Ps. (628) Ps. (1,251) Ps. (20,319) Ps. (28) Fee expenses and commissions (3) (1,410) (20,066) (2,098) (380) Operating expenses (300) (7,850) — (3,278) — Other expenses (14) (1,893) (444,730) (41,276) (25) (1) Include family members (2) Expenses were recognized during the current period with respect to bad debts owed by related parties for 400,630 Individuals Entities Entities with Individuals with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2018 Aval (*) personnel (*) ventures individuals individuals Income Interest income Ps. 216 Ps. 907 Ps. 101,539 Ps. 131,368 Ps. 4,789 Fee income and commissions 5 58 6,664 65,615 5 Leases — — 45 315 — Other income 4 243 241,797 4,252 — Expenses Financial expenses Ps. (216) Ps. (740) Ps. (735) Ps. (17,322) Ps. (22) Fee expenses and commissions (4) (1,549) (14,741) (1,796) (5) Operating expenses — (25,808) (53) (4,013) — Other expenses (16) (496) (30,250) (27,034) — (*) Include family members Individuals Entities Entities with Individuals with Entities significant control Key Associates controlled influence over Grupo management and joint by by December 31, 2017 Aval (*) personnel (*) ventures individuals individuals Income Interest income Ps. 164 Ps. 757 Ps. 155,690 Ps. 123,671 Ps. 543 Fee income and commissions 5 48 26,249 57,180 — Leases — — 321 301 — Other income 4 59 236,871 6,391 — Expenses Financial expenses Ps. (243) Ps. (1,197) Ps. (129,335) Ps. (30,431) Ps. (6) Fee expenses and commissions (4) (1,510) (24,039) (3,276) (1) Operating expenses — (9,706) (3,572) (1,892) (113) Other expenses — (1,635) (32,691) (34,400) —
Disclosure of information about key management personnel [text block]	The compensation received by the key personnel of the management comprises the following: Year ended as of December 31, December 31, December 31, Items 2019 2018 2017 Salaries Ps. 16,778 Ps. 18,123 Ps. 17,073 Short term benefits for employees 4,654 3,244 3,167 Subtotal 21,432 21,367 20,240 Subsidiaries 37,590 54,161 32,795 Total Ps. 59,022 Ps. 75,528 Ps. 53,035

SUBSEQUENT EVENTS (Tables)

SUBSEQUENT EVENTS (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of non-adjusting events after reporting period [abstract]
Explanation of financial effect of non-adjusting event after reporting period [text block]	Net income for period ended December 31, 2019 included in the unconsolidated financial statements of Grupo Aval Occasional reserve release at the disposal of the General Meeting of Shareholders Total Income available for disposal of the General Meeting of Shareholders Cash Dividends Ps. 60 per share payable in twelve monthly installments of Ps. 5.00 per share, from April 2020 to March, 2021. Total shares outstanding Total dividends declared Ps. To Occasional reserve at the disposal of General Meeting of Shareholders

PARENT COMPANY INFORMATION (Tab

PARENT COMPANY INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
PARENT COMPANY INFORMATION
Disclosure of detailed information about Condensed separate Statement of Financial Position	Condensed separate Statement of Financial Position December 31, 2019 2018 Current Assets Cash and cash equivalents Ps. 51,299 Ps. 38,667 Held for trading securities 212 1,543 Accounts receivable from related parties 328,307 267,640 Other assets 442 517 Total current assets Ps. 380,260 Ps. 308,367 Non current Assets Investments in subsidiaries and associates 22,016,681 19,932,376 Property plant and equipment 8,351 2,414 Deferred tax 331 476 Total non current assets Ps. 22,025,363 Ps. 19,935,266 Total assets Ps. 22,405,623 Ps. 20,243,633 Current liabilities Borrowings at amortized cost 189,297 2,808 Outstanding bonds at amortized cost 107,435 284,758 Accounts payable 468,298 405,372 Other non-financial liabilities 1,214 1,214 Total current liabilities Ps. 766,244 Ps. 694,152 Long-term liabilities Borrowings at amortized cost 241,141 541,924 Outstanding bonds 1,124,520 824,520 Total non current liabilities Ps. 1,365,661 Ps. 1,366,444 Total liabilities Ps. 2,131,905 Ps. 2,060,596 Equity Shareholders’ equity 20,273,718 18,183,037 Total liabilities and shareholders’ equity Ps. 22,405,623 Ps. 20,243,633
Disclosure of detailed information about Condensed separate Statement of Income	December 31, December 31, December 31, Condensed separate Statement of Income 2019 2018 2017 Operating revenue Equity method income, net 3,014,756 2,893,435 2,005,155 Other revenue from ordinary activities 286,778 285,218 234,502 Total operating revenue Ps. 3,301,534 Ps. 3,178,653 Ps. 2,239,657 Expenses, net Administrative expenses (83,902) (75,348) (89,823) Other expenses (236) (166) (274) (Losses) gains from exchange differences (812) (1,601) 98 Operating income Ps. 3,216,584 Ps. 3,101,538 Ps. 2,149,658 Financial expenses (121,794) (118,892) (133,171) Net income before taxes 3,094,790 2,982,646 2,016,487 Income tax expense (61,411) (66,662) (51,568) Net income Ps. 3,033,379 Ps. 2,915,984 Ps. 1,964,919
Disclosure of detailed information about Condensed separate Cash flow	December 31, December 31, December 31, Condensed separate Cash flow 2019 2018 2017 Net income Ps. 3,033,379 Ps. 2,915,984 Ps. 1,964,919 Adjustments to reconcile net income to net cash used by operating activities (1,753,640) (1,785,764) (880,322) Net cash provided by operating activities 1,279,739 1,130,220 1,084,597 Net cash provided (used in) by investing activities (145) (144) (295) Net cash (used in) provided by financing activities (1,267,976) (1,128,498) (1,096,011) Increase (decrease) in cash and cash equivalents 11,618 1,578 (11,709) Effect of foreign currency changes on cash and cash equivalents 1,014 1,611 (93) Cash and cash equivalents at beginning of year 38,667 35,478 47,280 Cash and cash equivalents at end of year Ps. 51,299 Ps. 38,667 Ps. 35,478
Disclosure of subsidiaries		Investment in subsidiaries and associates as of December 31, 2019 and 2018 comprise the following: December 31, 2019 December 31, 2018 Ownership Ownership interest held interest held by Grupo Book by Grupo Book Subsidiary Aval Value Aval Value Banco de Bogotá S.A. 68.74 % Ps. 13,325,612 68.74 % Ps. 11,905,815 Banco de Occidente S.A. 72.27 % 3,415,545 72.27 % 3,183,351 Banco Comercial AV Villas S.A. 79.87 % 1,410,765 79.87 % 1,290,056 Banco Popular S.A. 93.74 % 3,074,428 93.74 % 2,923,562 Corporación Financiera Colombiana S.A. 38.63 % 821,827 38.25 % 674,484 Sociedad Administradora de Fondos de Pensiones y Cesantías Porvenir S.A. 75.67 % 503,993 75.69 % 440,707 Grupo Aval Limited 100 % (535,893) 100.00 % (347,082) Grupo Aval International Limited (1) — % — 100.00 % (138,517) Total subsidiaries Ps. 22,016,277 Ps. 19,932,376 Associates ADL Digital Lab S.A.S 34.00 % — Total associates — Total investment in subsidiaries and associates Ps. Ps. (1) See note 1 reporting entity.
Disclosure of detailed information about Outstanding bonds	Bonds at December 31, 2019 and 2018 comprise the following: Amounts outstanding Issuance date Tranches Maturity Coupon rate 2019 2018 November, 2019 Ps. 100,000 November, 2024 6.42 % Ps. Ps. — November, 2019 300,000 November, 2039 IPC + 3.69 % — June, 2017 100,000 June, 2020 IPC + 2.69 % 100,065 June, 2017 300,000 June, 2042 IPC + 3.99 % 300,237 November, 2016 93,000 November, 2026 IPC + 3.86 % 93,690 November, 2016 207,000 November, 2036 IPC + 4.15 % 208,597 December, 2009 279,560 December, 2019 IPC + 4.84 % - 281,341 December, 2009 124,520 December, 2024 IPC + 5.20 % 125,348 Total Bonds Ps. 1,504,080 Ps. 1,231,955 Ps. 1,109,278
Disclosure of detailed information about scheduled maturities of bonds	The scheduled maturities of bonds as of December 31, 2019 are as follows Period Amount 2020 107,435 2021 — 2022 and thereafter Total Ps. 1,231,955

REPORTING ENTITY - Tabular disc

REPORTING ENTITY - Tabular disclosure (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Banco de Bogota S.A.
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Colombia	Colombia
Percentage of voting rights held	68.74%
Percentage of economic interest held	68.74%
Almaviva S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Logistics services.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	95.81%
Percentage of economic interest held	65.85%
Fiduciaria Bogota S.A
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Management of trust funds.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	94.99%
Percentage of economic interest held	65.29%
Porvenir S.A. and its subsidiary
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Management of pension and severance funds.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	75.67%
Leasing Bogota Panama S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Holding company of BAC Credomatic Inc.
Country of incorporation of subsidiary	Panamá, Republic of Panamá
Percentage of voting rights held	100.00%
Percentage of economic interest held	68.74%
Banco de Bogota Panama S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Commercial banking services.
Country of incorporation of subsidiary	Panamá, Republic of Panamá
Percentage of voting rights held	100.00%
Percentage of economic interest held	68.74%
BAC Credomatic Inc.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Holding company in charge of managing the banking and related subsidiaries in Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panamá, among others. (Subsidiary of Leasing Bogotá Panamá S.A.).
Country of incorporation of subsidiary	Panamá, Republic of Panamá
Percentage of voting rights held	100.00%
Percentage of economic interest held	68.74%
Banco de Occidente S.A.
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Colombia	Colombia
Percentage of voting rights held	72.27%
Percentage of economic interest held	72.27%
Banco de Occidente Panama. S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Commercial banking services.
Country of incorporation of subsidiary	Panamá, Republic of Panamá
Percentage of voting rights held	95.00%
Percentage of economic interest held	68.66%
Fiduciaria de Occidente S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Management of trust funds.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	99.99%
Percentage of economic interest held	70.78%
Occidental Bank Barbados Ltd.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Commercial banking services.
Country of incorporation of subsidiary	Barbados
Percentage of voting rights held	100.00%
Percentage of economic interest held	72.27%
Banco Popular S.A.
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Colombia	Colombia
Percentage of voting rights held	93.74%
Percentage of economic interest held	93.74%
Alpopular S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Conservation and custody of documents; transportation of products at national and international levels.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	71.10%
Percentage of economic interest held	66.65%
Fiduciaria Popular S.A.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Management of trust funds.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	94.85%
Percentage of economic interest held	88.91%
Banco Commercial Av Villas S A
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Colombia	Colombia
Percentage of voting rights held	80.39%
Percentage of economic interest held	79.87%
A Toda Hora S.A. ATH
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	ATM network services and maintenance and software development
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	78.90%
Corporacion Financiera Colombiana S.A.
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Colombia	Colombia
Percentage of voting rights held	53.45%
Percentage of economic interest held	38.63%
Colombiana de Licitaciones y Concesiones S.A.S
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Infrastructure projects.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	38.63%
Concesionaria Vial Del Pacifico S.A.S.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Infrastructure projects.
Country of incorporation of subsidiary	Sabaneta Antioquia
Percentage of voting rights held	89.90%
Percentage of economic interest held	34.73%
CFC Gas Holding S.A.S
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Investment Company
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	38.63%
Estudios y Proyectos del Sol S.A.S.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Infrastructure projects.
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	38.63%
Promigas S.A. E.S.P.
Disclosure of subsidiaries [line items]
Principal place of business of subsidiary	Transportation and distribution of natural gas.
Country of incorporation of subsidiary	Barranquilla, Colombia
Percentage of voting rights held	50.88%
Percentage of economic interest held	19.65%
Proyectos y Desarrollos Viales del Pacífico S.A.S
Disclosure of subsidiaries [line items]
Country of incorporation of subsidiary	Bogotá, Colombia
Percentage of voting rights held	100.00%
Percentage of economic interest held	38.63%

REPORTING ENTITY - Textual (Det

REPORTING ENTITY - Textual (Details) - USD ($) $ in Millions	Oct. 31, 2019	Dec. 31, 2019
Multibank Financial Group
Disclosure of subsidiaries [line items]
Proportion of ownership interest acquired	99.10%
Purchase price	$ 728
Proportion of ownership interest held by acquiree	0.90%
Banco de Bogota S.A.
Disclosure of subsidiaries [line items]
Proportion of voting rights held in subsidiary		68.74%
Proportion of ownership interest in subsidiary		68.74%
Banco de Occidente S.A.
Disclosure of subsidiaries [line items]
Proportion of voting rights held in subsidiary		72.27%
Proportion of ownership interest in subsidiary		72.27%
Banco Popular S.A.
Disclosure of subsidiaries [line items]
Proportion of voting rights held in subsidiary		93.74%
Proportion of ownership interest in subsidiary		93.74%
Banco Commercial Av Villas S A
Disclosure of subsidiaries [line items]
Proportion of voting rights held in subsidiary		80.39%
Proportion of ownership interest in subsidiary		79.87%
Corporacion Financiera Colombiana S.A.
Disclosure of subsidiaries [line items]
Proportion of voting rights held in subsidiary		53.45%
Proportion of ownership interest in subsidiary		38.63%

BASIS OF PREPARATION OF THE C_4

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Textual (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of voluntary change in accounting policy [line items]
Closing foreign exchange rate	3,277.14	3,249.75	2,984
Minimum
Disclosure of voluntary change in accounting policy [line items]
Proportion of ownership interest in associate	20.00%

BASIS OF PREPARATION OF THE C_5

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes in Accounting Policies (Details) - COP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of voluntary change in accounting policy [line items]
Impact of the adoption			$ (26,982)		$ (393,118)
Recognition of right-of-use
Right-of-use assets	$ 2,125,558
Retained earnings	10,289,073		8,598,319
Recognition of financial liabilities
Lease liabilities	5,778		7,347
Reconciliation of lease liability under IAS 17 and IFRS 16
Lease liabilities	$ 5,778		$ 7,347
IFRS 15
Disclosure of voluntary change in accounting policy [line items]
Impact of the adoption					391,281
IFRS 9
Disclosure of voluntary change in accounting policy [line items]
Impact of the adoption					$ (784,399)
Recognition of right-of-use
Retained earnings				$ (784,399)
IFRS 16
Recognition of right-of-use
Right-of-use assets		$ 2,217,380
Deferred tax liabilities		(636,017)
Total, Right of use asset		1,581,363
Retained earnings		(40,272)
Retained earnings // deferred tax for-right-of-use		13,290
Total, Retained earnings		(26,982)
Net effect		1,608,345
Recognition of financial liabilities
Lease liabilities		2,225,545
Provisions for dismantling for right-of-use		(32,107)
Deferred tax assets		(649,307)
Net effect		$ 1,608,345
Weighted average incremental borrowing rate		6.07%
Reconciliation of lease liability under IAS 17 and IFRS 16
Operating lease commitments at 31 December 2018 as disclosed under IAS 17 in the Group’s consolidated financial statements		$ 1,636,550
Discounted using the incremental borrowing rate		869,191
Add/(less): adjustments as a result of a different treatment of extension and termination options		1,275,475
Add/(less): adjustments relating to changes in the index or rate affecting variable payments		125,486
(Less): Recognition exemption for leases of low-value assets		(35,987)
(less): Recognition exemption for leases with less than 12 months of lease term at transition		(8,620)
Lease liabilities		$ 2,225,545

BASIS OF PREPARATION OF THE C_6

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - IFRS 15 Revenue from contracts with customers (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of initial application of standards or interpretations [line items]
Contract liability related to concessions	$ 539,584	$ 535,960
Retained earnings	10,289,073	8,598,319
Service concession arrangement [member]
Disclosure of initial application of standards or interpretations [line items]
Intangible assets	$ 7,521,488	$ 5,514,481	$ 3,734,116	$ 3,114,167	$ 2,805,314
Increase (decrease) due to application of IFRS 15
Disclosure of initial application of standards or interpretations [line items]
Commissions related to funding			12,744
Contract liability related to concessions			(531,804)
Financial assets			450,878
Intangible assets			619,949
Deferred tax effect			(181,680)
Retained earnings, operation and construction services (concessions)			370,087
Customer loyalty programs			32,232
Deferred tax effect			(11,038)
Net impact retained earnings, customer loyaly programs			21,194
Retained earnings			$ 391,281

BASIS OF PREPARATION OF THE C_7

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impact of IFRS 9 (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Disclosure of detailed information about financial instruments [line items]
Retained earnings	$ 10,289,073	$ 8,598,319
IFRS 9
Disclosure of detailed information about financial instruments [line items]
Recognition of changes in measurement due in classification under IFRS 9			$ 71,229
Recognition of expected credit losses under IFRS 9			(1,198,863)
Impact on equity method due to impairment of other accounts receivable from associates			(3,691)
Deferred tax effect			346,926
Retained earnings			(784,399)
IFRS 9 | Reserves And Retained Earnings
Disclosure of detailed information about financial instruments [line items]
Recognition of expected credit losses under IFRS 9			(1,255,060)
Deferred tax effect			366,650
Retained earnings			(888,411)
IFRS 9 | Accumulated other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Recognition of changes in measurement due in classification under IFRS 9			71,229
Recognition of expected credit losses under IFRS 9			56,198
Impact on equity method due to impairment of other accounts receivable from associates			(3,691)
Deferred tax effect			(19,725)
Retained earnings			$ 104,011

BASIS OF PREPARATION OF THE C_8

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of financial assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Financial instruments
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Financial instruments
Financial assets	(8,557,039)	(8,611,594)		$ (5,875,018)
Loan commitments and financial guarantee contracts | Accumulated impairment
Financial instruments
Financial assets	(49,962)	(59,428)		(29,675)
Loan portfolio | Accumulated impairment
Financial instruments
Financial assets	(8,185,797)	(8,196,187)		(5,618,481)
Trade receivables / other accounts receivable
Financial instruments
Financial assets	11,702,301	9,300,643
Trade receivables / other accounts receivable | Accumulated impairment
Financial instruments
Financial assets	$ (286,463)	$ (256,891)
Increase (decrease) due to application of IFRS 9 | Loan commitments and financial guarantee contracts | Accumulated impairment
Financial instruments
Financial assets				(16,217)
Increase (decrease) due to application of IFRS 9 | Credit commitments | Accumulated impairment
Financial instruments
Financial assets				(16,217)
Increase (decrease) due to application of IFRS 9 | Loan portfolio | Accumulated impairment
Financial instruments
Financial assets				(1,163,009)
Increase (decrease) due to application of IFRS 9 | Trade receivables / other accounts receivable | Accumulated impairment
Financial instruments
Financial assets				(18,907)
Increase (decrease) due to application of IFRS 9 | Impact on equity method investees due to impairment of other accounts receivable from associates | Accumulated impairment
Financial instruments
Financial assets				(3,691)
Increase (decrease) due to application of IFRS 9 | Other financial assets | Accumulated impairment
Financial instruments
Financial assets				(58)
Increase (decrease) due to application of IFRS 9 | Debt securities | Investment securities at amortized cost | Accumulated impairment
Financial instruments
Financial assets				(672)
After application application of IFRS 9 | Accumulated impairment
Financial instruments
Financial assets			$ (7,077,572)
After application application of IFRS 9 | Loan commitments and financial guarantee contracts | Accumulated impairment
Financial instruments
Financial assets				(45,892)
After application application of IFRS 9 | Loan portfolio | Accumulated impairment
Financial instruments
Financial assets				$ (6,781,490)

BASIS OF PREPARATION OF THE C_9

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impact on OCI from Impairment (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets	(8,557,039)	(8,611,594)		$ (5,875,018)
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	21,608,992	18,935,757
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets	(34,080)	(99,017)
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ (34,080)	$ (99,017)		(71,708)
Increase (decrease) due to application of IFRS 9 | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets				(56,198)
After application application of IFRS 9 | Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets			$ (7,077,572)
After application application of IFRS 9 | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of detailed information about financial instruments [line items]
Financial assets			$ (127,906)	$ (127,906)

BASIS OF PREPARATION OF THE _10

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, plant and equipment for own use (Details)	12 Months Ended
	Dec. 31, 2019
Rubber
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	35 years
African oil palm
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	25 years
Minimum | Office Equipment
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	3 years
Minimum | Machinery
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	5 years
Minimum | Computer Equipment
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	3 years
Minimum | Vehicles
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	5 years
Minimum | Bearer plants
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	25 years
Maximum | Office Equipment
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	10 years
Maximum | Machinery
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	25 years
Maximum | Computer Equipment
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	12 years
Maximum | Vehicles
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	10 years
Maximum | Bearer plants
Disclosure of voluntary change in accounting policy [line items]
Useful lives or depreciation rates, property, plant and equipment	35 years

BASIS OF PREPARATION OF THE _11

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes in Presentation (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Trading assets
Derivative assets	$ 917,434	$ 768,686
Loans:
Commercial	101,655,660	102,408,977
Consumer	59,840,451	55,455,064
Mortgages	20,221,683	18,592,103
Microcredit	410,320	425,697
Allowance for impairment losses	(8,185,797)	(8,196,187)
Other receivables	11,702,301	9,300,643
Other accounts receivable	11,702,301	9,300,643
Trading liabilities
Derivative instruments	962,438	811,305
Hedging derivatives	$ 94,298	$ 195,539

BASIS OF PREPARATION OF THE _12

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Consolidated Statement of Income - (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of voluntary change in accounting policy [abstract]
Income from sales of goods and services	$ 9,156,588	$ 8,126,014	$ 5,792,850
Costs and expenses of sales goods and services	(6,781,777)	(5,482,102)	(5,035,827)
Gross profit from sales of goods and services	2,374,811	2,643,912	757,023
Other income	$ 1,282,963	$ 1,358,681	$ 1,151,745

BASIS OF PREPARATION OF THE _13

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Leases - (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of voluntary change in accounting policy [abstract]
Lease liabilities	$ 5,778	$ 7,347
Deferred tax asset	246,598	341,338
Deferred tax liability	2,871,309	2,160,942
Retained earnings	$ 10,289,073	$ 8,598,319

BASIS OF PREPARATION OF THE _14

BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other standards (Details)	12 Months Ended
	Dec. 31, 2019
Conceptual Framework
Disclosure of voluntary change in accounting policy [line items]
Title of new IFRS	Amendments to References to Conceptual Framework in IFRS Standards
Description of nature of impending change in accounting policy	Conceptual Framework
Date by which application of new IFRS is required	Jan. 1, 2020
Amendment to IFRS 3
Disclosure of voluntary change in accounting policy [line items]
Title of new IFRS	Definition of a Business
Description of nature of impending change in accounting policy	Amendment to IFRS 3
Date by which application of new IFRS is required	Jan. 1, 2020
IFRS 17
Disclosure of voluntary change in accounting policy [line items]
Title of new IFRS	IFRS 17
Description of nature of impending change in accounting policy	Insurance contracts
Date by which application of new IFRS is required	Jan. 1, 2021
Interpretation IFRIC 23
Disclosure of voluntary change in accounting policy [line items]
Title of new IFRS	Interpretation IFRIC 23
Description of nature of impending change in accounting policy	Uncertainty over Income Tax Treatments
Date by which application of new IFRS is required	Jan. 1, 2020

RISK MANAGEMENT - Consolidated

RISK MANAGEMENT - Consolidated Credit Risk Exposure (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	$ 248,011,670	$ 234,896,707
Total exposure to credit risk outside of the statement of financial position	32,154,604	30,925,681
Total maximum exposure to credit risk	280,166,274	265,822,388
Financial guarantee contracts
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total exposure to credit risk outside of the statement of financial position	3,341,641	3,446,601
Credit commitments
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total exposure to credit risk outside of the statement of financial position	28,812,963	27,479,080
Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total exposure to credit risk outside of the statement of financial position	91,306,719	92,550,025
Commercial loans | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	101,655,660	102,408,977
Loans to consumers
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total exposure to credit risk outside of the statement of financial position	59,587,929	55,200,581
Loans to consumers | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	59,840,451	55,455,064
Mortgages
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	20,221,683	18,592,103
Total exposure to credit risk outside of the statement of financial position	18,661,389	17,279,362
Mortgages | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	20,221,683	18,592,103
Loan Microcredit portfolio | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	410,320	425,697
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	9,282,734	7,069,120
Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	2,706,030	2,488,414
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	23,464,691	21,955,901
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	3,053,862	2,972,616
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	4,673,113	3,762,978
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	21,608,992	18,935,757
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	917,434	768,686
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Total financial assets with credit risk	$ 166,598	$ 30,138

RISK MANAGEMENT - Loans are rec

RISK MANAGEMENT - Loans are recorded at amortized cost (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Loans and receivables	$ 182,128,114	$ 176,881,841
Loan portfolio
Disclosure of financial assets [line items]
Balance in Statement of financial position	182,128,114	176,881,841
Loans and receivables	182,128,114	176,881,841
Commercial loans
Disclosure of financial assets [line items]
Balance in Statement of financial position	101,655,660	102,408,977
Leasing presentation adjustment	(10,348,941)	(9,858,952)
Loans and receivables	91,306,719	92,550,025
Loans to consumers
Disclosure of financial assets [line items]
Balance in Statement of financial position	59,840,451	55,455,064
Leasing presentation adjustment	(252,522)	(254,483)
Loans and receivables	59,587,929	55,200,581
Mortgages
Disclosure of financial assets [line items]
Balance in Statement of financial position	20,221,683	18,592,103
Leasing presentation adjustment	(1,560,294)	(1,312,741)
Loans and receivables	18,661,389	17,279,362
Microcredit
Disclosure of financial assets [line items]
Balance in Statement of financial position	410,320	425,697
Loans and receivables	410,320	425,697
Financial leasing
Disclosure of financial assets [line items]
Leasing presentation adjustment	12,161,757	11,426,176
Loans and receivables	$ 12,161,757	$ 11,426,176

RISK MANAGEMENT - Probability o

RISK MANAGEMENT - Probability of default analysis (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	$ 32,154,604	$ 30,925,681
Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	91,306,719	92,550,025
Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	59,587,929	55,200,581
Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	18,661,389	17,279,362
Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	410,320	425,697
Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	12,161,757	11,426,176
0% - 7.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	82,405,576	83,453,861
0% - 7.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	46,013,606	43,394,537
0% - 7.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	16,822,632	15,724,050
0% - 7.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	123,750	212,905
0% - 7.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	10,614,245	10,032,906
7.5% - 15% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,223,562	1,038,062
7.5% - 15% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	6,748,025	5,145,153
7.5% - 15% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	299,185	233,144
7.5% - 15% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	142,955	68,568
7.5% - 15% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	232,109	187,282
15% - 22.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	222,594	233,759
15% - 22.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	787,329	1,271,898
15% - 22.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	250,701	200,341
15% - 22.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	29,829	36,019
15% - 22.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	52,506	36,988
22.5% - 30% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	131,919	178,508
22.5% - 30% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	472,677	571,943
22.5% - 30% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	166,526	145,263
22.5% - 30% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	4,878	838
22.5% - 30% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	31,635	24,297
30% - 45% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	958,124	686,142
30% - 45% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,028,226	1,099,579
30% - 45% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	263,484	273,851
30% - 45% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	20,833	20,360
30% - 45% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	115,720	139,113
45% - 60% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	472,593	237,301
45% - 60% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	753,117	616,680
45% - 60% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	184,511	175,575
45% - 60% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	9,607	8,648
45% - 60% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	63,029	33,132
60% - 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	49,474	95,958
60% - 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,698,713	1,144,860
60% - 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	120,420	138,297
60% - 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	22,871	22,744
60% - 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	4,214	9,506
> 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	5,842,877	6,626,434
> 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	2,086,236	1,955,931
> 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	553,930	388,841
> 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	55,597	55,615
> 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,048,299	962,952
12-month ECL | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	83,075,132	84,218,469
12-month ECL | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	53,321,328	48,625,173
12-month ECL | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	16,812,000	15,566,058
12-month ECL | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	329,922	344,722
12-month ECL | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	10,668,306	10,132,370
12-month ECL | 0% - 7.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	82,094,981	83,210,772
12-month ECL | 0% - 7.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	45,471,761	42,839,139
12-month ECL | 0% - 7.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	16,666,766	15,521,416
12-month ECL | 0% - 7.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	123,733	212,882
12-month ECL | 0% - 7.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	10,516,783	9,977,306
12-month ECL | 7.5% - 15% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	855,476	865,784
12-month ECL | 7.5% - 15% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	6,436,998	4,692,330
12-month ECL | 7.5% - 15% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	116,157	32,076
12-month ECL | 7.5% - 15% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	142,921	68,503
12-month ECL | 7.5% - 15% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	149,809	135,444
12-month ECL | 15% - 22.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	44,548	52,906
12-month ECL | 15% - 22.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	469,685	815,373
12-month ECL | 15% - 22.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	16,035	6,950
12-month ECL | 15% - 22.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	29,829	35,880
12-month ECL | 15% - 22.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,177	4,802
12-month ECL | 22.5% - 30% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	45,596	47,739
12-month ECL | 22.5% - 30% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	138,510	179,065
12-month ECL | 22.5% - 30% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	4,187	1,941
12-month ECL | 22.5% - 30% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	4,174	10
12-month ECL | 22.5% - 30% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	16	10,000
12-month ECL | 30% - 45% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	30,026	20,889
12-month ECL | 30% - 45% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	378,371	91,846
12-month ECL | 30% - 45% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	8,606	1,710
12-month ECL | 30% - 45% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	20,263	19,413
12-month ECL | 30% - 45% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	297	1,446
12-month ECL | 45% - 60% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,437	2,448
12-month ECL | 45% - 60% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	3,457	4,378
12-month ECL | 45% - 60% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	171	121
12-month ECL | 45% - 60% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	8,666	7,737
12-month ECL | 45% - 60% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	72	2,590
12-month ECL | 60% - 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,495	1,117
12-month ECL | 60% - 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	422,442	2,587
12-month ECL | 60% - 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	65	150
12-month ECL | 60% - 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	336	297
12-month ECL | 60% - 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	152	459
12-month ECL | > 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,573	16,814
12-month ECL | > 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	104	455
12-month ECL | > 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	13	1,694
12-month ECL | > 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		323
Not credit-impaired | Lifetime ECL | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	2,392,259	1,663,612
Not credit-impaired | Lifetime ECL | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	3,893,548	4,366,464
Not credit-impaired | Lifetime ECL | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,299,159	1,335,741
Not credit-impaired | Lifetime ECL | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	24,801	25,374
Not credit-impaired | Lifetime ECL | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	447,040	329,946
Not credit-impaired | Lifetime ECL | 0% - 7.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	310,595	243,089
Not credit-impaired | Lifetime ECL | 0% - 7.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	541,845	555,398
Not credit-impaired | Lifetime ECL | 0% - 7.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	155,866	202,634
Not credit-impaired | Lifetime ECL | 0% - 7.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	17	23
Not credit-impaired | Lifetime ECL | 0% - 7.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	97,462	55,600
Not credit-impaired | Lifetime ECL | 7.5% - 15% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	368,086	172,278
Not credit-impaired | Lifetime ECL | 7.5% - 15% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	311,027	452,823
Not credit-impaired | Lifetime ECL | 7.5% - 15% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	183,028	201,068
Not credit-impaired | Lifetime ECL | 7.5% - 15% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	34	65
Not credit-impaired | Lifetime ECL | 7.5% - 15% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	82,300	51,838
Not credit-impaired | Lifetime ECL | 15% - 22.5% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	178,046	180,853
Not credit-impaired | Lifetime ECL | 15% - 22.5% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	317,644	456,525
Not credit-impaired | Lifetime ECL | 15% - 22.5% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	234,666	193,391
Not credit-impaired | Lifetime ECL | 15% - 22.5% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		139
Not credit-impaired | Lifetime ECL | 15% - 22.5% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	51,329	32,186
Not credit-impaired | Lifetime ECL | 22.5% - 30% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	86,323	130,769
Not credit-impaired | Lifetime ECL | 22.5% - 30% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	334,167	392,878
Not credit-impaired | Lifetime ECL | 22.5% - 30% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	162,339	143,322
Not credit-impaired | Lifetime ECL | 22.5% - 30% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	704	828
Not credit-impaired | Lifetime ECL | 22.5% - 30% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	31,619	14,297
Not credit-impaired | Lifetime ECL | 30% - 45% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	928,098	665,253
Not credit-impaired | Lifetime ECL | 30% - 45% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	649,855	946,658
Not credit-impaired | Lifetime ECL | 30% - 45% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	254,878	272,141
Not credit-impaired | Lifetime ECL | 30% - 45% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	570	947
Not credit-impaired | Lifetime ECL | 30% - 45% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	115,423	137,667
Not credit-impaired | Lifetime ECL | 45% - 60% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	471,156	234,853
Not credit-impaired | Lifetime ECL | 45% - 60% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	603,034	521,213
Not credit-impaired | Lifetime ECL | 45% - 60% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	184,340	175,454
Not credit-impaired | Lifetime ECL | 45% - 60% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	941	911
Not credit-impaired | Lifetime ECL | 45% - 60% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	62,957	30,542
Not credit-impaired | Lifetime ECL | 60% - 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	47,979	27,679
Not credit-impaired | Lifetime ECL | 60% - 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,065,686	964,704
Not credit-impaired | Lifetime ECL | 60% - 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	120,355	138,147
Not credit-impaired | Lifetime ECL | 60% - 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	22,535	22,447
Not credit-impaired | Lifetime ECL | 60% - 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	4,062	7,634
Not credit-impaired | Lifetime ECL | > 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,976	8,838
Not credit-impaired | Lifetime ECL | > 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	70,290	76,265
Not credit-impaired | Lifetime ECL | > 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	3,687	9,584
Not credit-impaired | Lifetime ECL | > 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		14
Not credit-impaired | Lifetime ECL | > 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,888	182
Credit-impaired | Lifetime ECL | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	5,839,328	6,667,944
Credit-impaired | Lifetime ECL | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	2,373,053	2,208,944
Credit-impaired | Lifetime ECL | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	550,230	377,563
Credit-impaired | Lifetime ECL | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	55,597	55,601
Credit-impaired | Lifetime ECL | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	1,046,411	963,860
Credit-impaired | Lifetime ECL | 30% - 45% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		61,075
Credit-impaired | Lifetime ECL | 45% - 60% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	146,626	91,089
Credit-impaired | Lifetime ECL | 60% - 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		67,162
Credit-impaired | Lifetime ECL | 60% - 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	210,585	177,569
Credit-impaired | Lifetime ECL | 60% - 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position		1,413
Credit-impaired | Lifetime ECL | > 90% | Commercial loans
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	5,839,328	6,600,782
Credit-impaired | Lifetime ECL | > 90% | Loans to consumers
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	2,015,842	1,879,211
Credit-impaired | Lifetime ECL | > 90% | Mortgages
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	550,230	377,563
Credit-impaired | Lifetime ECL | > 90% | Microcredit
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	55,597	55,601
Credit-impaired | Lifetime ECL | > 90% | Financial leasing
Disclosure of credit risk exposure [line items]
Total exposure to credit risk outside of the statement of financial position	$ 1,046,411	$ 962,447

RISK MANAGEMENT - Credit qualit

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Trading investments in debt securities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Debt securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	4,036,007	3,530,552
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	634,553	228,663
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Without grade or not available
Disclosure of financial assets [line items]
Financial assets	2,553	3,763
Sovereign | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	2,428,981	2,270,642
Sovereign | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	136,314	98,155
Other Public Entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	175,793	128,546
Central Banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	13,966	12,914
Corporate | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	61,001	30,207
Corporate | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	4,084
Corporate | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Without grade or not available
Disclosure of financial assets [line items]
Financial assets	2,553	3,763
Financial Entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	1,370,232	1,101,157
Financial Entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	$ 480,189	$ 117,594

RISK MANAGEMENT - Credit qual_2

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Investments in debt securities mandatorily at FVTPL (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Corporate | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	$ 10,102	$ 31,256

RISK MANAGEMENT - Credit qual_3

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Investments in debt securities at FVOCI (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	15,884,375	14,976,941
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	5,724,617	3,951,188
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Default
Disclosure of financial assets [line items]
Financial assets		7,628
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,474,805
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	15,884,375	14,976,941
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Speculative grade
Disclosure of financial assets [line items]
Financial assets	5,724,617	3,497,864
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired
Disclosure of financial assets [line items]
Financial assets		453,324
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired | Speculative grade
Disclosure of financial assets [line items]
Financial assets		453,324
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Credit-impaired
Disclosure of financial assets [line items]
Financial assets		7,628
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Credit-impaired | Default
Disclosure of financial assets [line items]
Financial assets		7,628
Sovereign | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	12,590,020	11,492,538
Sovereign | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	4,051,354	2,048,792
Sovereign | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	12,590,020	11,492,538
Sovereign | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Speculative grade
Disclosure of financial assets [line items]
Financial assets	4,051,354	1,994,205
Sovereign | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired | Speculative grade
Disclosure of financial assets [line items]
Financial assets		54,587
Other Public Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	465,677	497,634
Other Public Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	465,677	497,634
Central Banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	970,095	1,131,740
Central Banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Speculative grade
Disclosure of financial assets [line items]
Financial assets	970,095	1,066,822
Central Banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired | Speculative grade
Disclosure of financial assets [line items]
Financial assets		64,918
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	228,447	135,985
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	152,303	194,302
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Default
Disclosure of financial assets [line items]
Financial assets		7,628
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	228,447	135,985
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Speculative grade
Disclosure of financial assets [line items]
Financial assets	152,303	61,485
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired | Speculative grade
Disclosure of financial assets [line items]
Financial assets		132,817
Corporate | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Credit-impaired | Default
Disclosure of financial assets [line items]
Financial assets		7,628
Financial Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	2,504,060	2,732,127
Financial Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Speculative grade
Disclosure of financial assets [line items]
Financial assets	550,865	576,354
Financial Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	2,504,060	2,732,127
Financial Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Speculative grade
Disclosure of financial assets [line items]
Financial assets	550,865	375,352
Financial Entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Lifetime ECL | Not credit-impaired | Speculative grade
Disclosure of financial assets [line items]
Financial assets		201,002
Multilaterals | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Investment grade
Disclosure of financial assets [line items]
Financial assets	96,171	118,657
Multilaterals | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	$ 96,171	$ 118,657

RISK MANAGEMENT - Credit qual_4

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Investments in debt securities at amortized cost (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Sovereign | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Sovereign | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Other Public Entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	3,029,802	2,931,172
Other Public Entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	3,029,802	2,931,172
Financial Entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	1,017	9,123
Financial Entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL | Investment grade
Disclosure of financial assets [line items]
Financial assets	$ 1,017	$ 9,123

RISK MANAGEMENT - Credit qual_5

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at FVTPL (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Other accounts receivable FVTPL | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Other accounts receivable FVTPL, sovereign | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount | Investment grade
Disclosure of financial assets [line items]
Financial assets	$ 2,706,030	$ 2,488,414

RISK MANAGEMENT - Credit qual_6

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - General (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Other accounts receivable at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL
Disclosure of financial assets [line items]
Financial assets	5,550,505	3,367,349
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Lifetime ECL | Not credit-impaired
Disclosure of financial assets [line items]
Financial assets	132,474	138,082
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount | Lifetime ECL | Credit-impaired
Disclosure of financial assets [line items]
Financial assets	113,503	175,847
Other accounts receivable, general approach, other accounts receivables and contract assets for corporate customers | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	4,719,510	2,971,500
Other accounts receivable, general approach, other accounts receivables and contract assets for corporate customers | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL
Disclosure of financial assets [line items]
Financial assets	4,719,510	2,971,500
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	1,076,972	709,778
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount | 12-month ECL
Disclosure of financial assets [line items]
Financial assets	830,995	395,849
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount | Lifetime ECL | Not credit-impaired
Disclosure of financial assets [line items]
Financial assets	132,474	138,082
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount | Lifetime ECL | Credit-impaired
Disclosure of financial assets [line items]
Financial assets	113,503	175,847
Other accounts receivable, simplified approach | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,486,252	3,387,842
Other accounts receivable FVTPL | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	$ 2,706,030	$ 2,488,414

RISK MANAGEMENT - Credit qual_7

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using general approach - Other accounts receivable and contract assets for corporate customers (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	$ 259,515,428	$ 245,105,338
Trade receivables / other accounts receivable
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	11,702,301	9,300,643
Derivatives
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	1,084,032	798,824
Investment grade | Trade receivables / other accounts receivable
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	4,719,510	2,971,500
Investment grade | Trade receivables / other accounts receivable | 12-month ECL
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	4,719,510	2,971,500
Investment grade | Sovereign | Trade receivables / other accounts receivable
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	4,328,028	2,631,235
Investment grade | Sovereign | Trade receivables / other accounts receivable | 12-month ECL
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	4,328,028	2,631,235
Investment grade | Financial Entities | Trade receivables / other accounts receivable
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	391,482	340,265
Investment grade | Financial Entities | Trade receivables / other accounts receivable | 12-month ECL
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	391,482	340,265
Investment grade | Derivatives
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	734,959	755,218
Speculative grade | Derivatives
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	21,037	9,926
Without grade or not available | Derivatives
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	$ 328,036	$ 33,680

RISK MANAGEMENT - Credit qual_8

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using general approach - By segment (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Trade receivables		$ 709,778
Contribution Segmentation
Disclosure of financial assets [line items]
Trade receivables		71,903
Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables		444,657
Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables		139,172
Other Accounts Receivable Segmentation
Disclosure of financial assets [line items]
Trade receivables		54,046
Trade receivables / other accounts receivable
Disclosure of financial assets [line items]
Trade receivables	$ 1,076,972
Trade receivables / other accounts receivable | Contribution Segmentation
Disclosure of financial assets [line items]
Trade receivables	99,852
Trade receivables / other accounts receivable | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables	633,633
Trade receivables / other accounts receivable | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables	134,018
Trade receivables / other accounts receivable | Other Accounts Receivable Segmentation
Disclosure of financial assets [line items]
Trade receivables	209,469
12-month ECL
Disclosure of financial assets [line items]
Trade receivables		395,849
12-month ECL | Contribution Segmentation
Disclosure of financial assets [line items]
Trade receivables		71,903
12-month ECL | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables		232,445
12-month ECL | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables		37,455
12-month ECL | Other Accounts Receivable Segmentation
Disclosure of financial assets [line items]
Trade receivables		54,046
12-month ECL | Trade receivables / other accounts receivable
Disclosure of financial assets [line items]
Trade receivables	830,995
12-month ECL | Trade receivables / other accounts receivable | Contribution Segmentation
Disclosure of financial assets [line items]
Trade receivables	99,852
12-month ECL | Trade receivables / other accounts receivable | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables	459,012
12-month ECL | Trade receivables / other accounts receivable | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables	62,662
12-month ECL | Trade receivables / other accounts receivable | Other Accounts Receivable Segmentation
Disclosure of financial assets [line items]
Trade receivables	209,469
Lifetime ECL | Not credit-impaired
Disclosure of financial assets [line items]
Trade receivables		138,082
Lifetime ECL | Not credit-impaired | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables		134,519
Lifetime ECL | Not credit-impaired | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables		3,563
Lifetime ECL | Credit-impaired
Disclosure of financial assets [line items]
Trade receivables		175,847
Lifetime ECL | Credit-impaired | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables		77,693
Lifetime ECL | Credit-impaired | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables		$ 98,154
Lifetime ECL | Trade receivables / other accounts receivable | Not credit-impaired
Disclosure of financial assets [line items]
Trade receivables	132,474
Lifetime ECL | Trade receivables / other accounts receivable | Not credit-impaired | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables	128,455
Lifetime ECL | Trade receivables / other accounts receivable | Not credit-impaired | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables	4,019
Lifetime ECL | Trade receivables / other accounts receivable | Credit-impaired
Disclosure of financial assets [line items]
Trade receivables	113,503
Lifetime ECL | Trade receivables / other accounts receivable | Credit-impaired | Gas Segmentation
Disclosure of financial assets [line items]
Trade receivables	46,166
Lifetime ECL | Trade receivables / other accounts receivable | Credit-impaired | Energy Segmentation
Disclosure of financial assets [line items]
Trade receivables	$ 67,337

RISK MANAGEMENT - Credit qual_9

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using simplified approach (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,557,039)	(8,611,594)	$ (5,875,018)
Trade Receivables And Contract Assets From Individual Customers
Disclosure of financial assets [line items]
Financial assets	3,486,252	3,387,842
Trade Receivables And Contract Assets From Individual Customers | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	$ (260,401)	$ (231,660)
Trade Receivables And Contract Assets From Individual Customers | Not later than one month [member]
Disclosure of financial assets [line items]
Expected credit loss rate	1.05%	1.15%
Financial assets	$ 2,275,266	$ 2,846,086
Trade Receivables And Contract Assets From Individual Customers | Not later than one month [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	$ (23,892)	$ (32,622)
Trade Receivables And Contract Assets From Individual Customers | From 31 to 60 days
Disclosure of financial assets [line items]
Expected credit loss rate	1.70%	6.70%
Financial assets	$ 810,364	$ 111,636
Trade Receivables And Contract Assets From Individual Customers | From 31 to 60 days | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	$ (13,788)	$ (7,485)
Trade Receivables And Contract Assets From Individual Customers | From 61 to 90 days
Disclosure of financial assets [line items]
Expected credit loss rate	11.05%	9.39%
Financial assets	$ 72,920	$ 31,625
Trade Receivables And Contract Assets From Individual Customers | From 61 to 90 days | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	$ (8,061)	$ (2,970)
Trade Receivables And Contract Assets From Individual Customers | More than 90 days past due
Disclosure of financial assets [line items]
Expected credit loss rate	65.50%	47.32%
Financial assets	$ 327,702	$ 398,495
Trade Receivables And Contract Assets From Individual Customers | More than 90 days past due | Credit-impaired
Disclosure of financial assets [line items]
Financial assets	327,702	398,495
Trade Receivables And Contract Assets From Individual Customers | More than 90 days past due | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	$ (214,660)	$ (188,583)

RISK MANAGEMENT - Credit qua_10

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Derivatives
Disclosure of financial assets [line items]
Financial assets	1,084,032	798,824
Derivatives | Investment grade
Disclosure of financial assets [line items]
Financial assets	734,959	755,218
Derivatives | Speculative grade
Disclosure of financial assets [line items]
Financial assets	21,037	9,926
Derivatives | Without grade or not available
Disclosure of financial assets [line items]
Financial assets	$ 328,036	$ 33,680

RISK MANAGEMENT - Credit qua_11

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Trading derivatives - Assets (Details) - Derivatives - Trading securities - Financial assets at fair value through profit or loss, classified as held for trading, category [member] - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Notional amount	$ 38,957,370	$ 34,950,958
Central counterparties [member]
Disclosure of financial assets [line items]
Notional amount	$ 4,720,381	$ 5,997,311

RISK MANAGEMENT - Credit qua_12

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Trading derivatives - Liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	1,056,736	1,006,844
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Notional amount	40,549,648	31,237,110
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Central counterparties [member]
Disclosure of financial liabilities [line items]
Notional amount	5,315,421	1,977,284
Financial liabilities	$ 52	$ 32

RISK MANAGEMENT - Credit qua_13

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Hedging derivatives - Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Derivatives
Disclosure of financial assets [line items]
Financial assets	1,084,032	798,824
Derivatives | Hedging instruments [member]
Disclosure of financial assets [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Notional amount	7,322,445	2,493,849
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Central counterparties [member]
Disclosure of financial assets [line items]
Notional amount	$ 3,252,561	$ 1,280,402

RISK MANAGEMENT - Credit qua_14

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Hedging derivatives - Liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	1,056,736	1,006,844
Derivatives | Hedging derivative liabilities
Disclosure of financial liabilities [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of financial liabilities [line items]
Notional amount	6,211,399	8,722,602
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Central counterparties [member]
Disclosure of financial liabilities [line items]
Notional amount	$ 3,318,104	$ 4,601,646

RISK MANAGEMENT - Credit qua_15

RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Cash and cash equivalents (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Cash equivalents	$ 23,464,691	$ 21,955,901
Cash held by entity	6,652,545	6,445,382
Total cash and cash equivalents	30,117,236	28,401,283	$ 22,336,838	$ 22,193,004
Investment grade
Disclosure of financial assets [line items]
Cash equivalents	15,110,595	13,988,666
Speculative grade
Disclosure of financial assets [line items]
Cash equivalents	7,904,760	7,707,990
Without grade or not available
Disclosure of financial assets [line items]
Cash equivalents	449,336	259,245
Central Bank | Investment grade
Disclosure of financial assets [line items]
Cash equivalents	4,755,515	3,794,411
Central Bank | Speculative grade
Disclosure of financial assets [line items]
Cash equivalents	7,714,111	7,264,128
Central Bank | Without grade or not available
Disclosure of financial assets [line items]
Cash equivalents		2,338
Financial entities | Investment grade
Disclosure of financial assets [line items]
Cash equivalents	10,353,061	10,194,255
Financial entities | Speculative grade
Disclosure of financial assets [line items]
Cash equivalents	190,649	443,862
Financial entities | Without grade or not available
Disclosure of financial assets [line items]
Cash equivalents	333,864	$ 256,907
Others | Investment grade
Disclosure of financial assets [line items]
Cash equivalents	2,019
Others | Without grade or not available
Disclosure of financial assets [line items]
Cash equivalents	$ 115,472

RISK MANAGEMENT - Mitigation of

RISK MANAGEMENT - Mitigation of credit risk, collateral and other (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	$ 248,011,670	$ 234,896,707
Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	20,221,683	18,592,103
Mortgage [Member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	18,661,389	17,279,362
Financial leasing
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	1,560,294	1,312,741
Less than 50% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	7,030,135	6,414,097
51 - 70% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	7,050,550	6,678,883
71 - 90% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	5,189,800	4,890,501
91 - 100% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	731,266	426,810
More than 100% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	219,932	181,812
Credit-impaired | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	598,378	423,851
Credit-impaired | Less than 50% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	136,197	99,462
Credit-impaired | 51 - 70% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	197,183	146,568
Credit-impaired | More than 70% | Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit exposure	$ 264,998	$ 177,821

RISK MANAGEMENT - Credit portfo

RISK MANAGEMENT - Credit portfolio per type of guarantees received (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 182,128,114	$ 176,881,841
Financial assets	259,515,428	245,105,338
Loan portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	182,128,114	176,881,841
Loan portfolio | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	102,854,946	97,363,628
Loan portfolio | Loans secured by other banks
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	327,754	375,608
Loan portfolio | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	19,393,695	17,784,007
Loan portfolio | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,290,852	17,494,222
Loan portfolio | Investments in equity instruments
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	263,843	502,961
Loan portfolio | Deposits in cash or cash equivalents
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,405,900	1,303,686
Loan portfolio | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,128,273	9,097,268
Loan portfolio | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,753,657	10,580,214
Loan portfolio | Leased machineries and vehicles
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,051,776	9,221,950
Loan portfolio | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,395,208	9,884,630
Loan portfolio | Pledged income
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,262,210	3,273,667
Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	91,306,719	92,550,025
Financial assets	21,862,835	19,358,216
Collateral Guarantees	20,916,299	18,737,884
Commercial loans | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	50,267,803	49,721,150
Commercial loans | Loans secured by other banks
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	321,672	362,128
Commercial loans | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	713,912	506,687
Commercial loans | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	16,738,074	15,943,414
Commercial loans | Investments in equity instruments
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	262,663	502,408
Commercial loans | Deposits in cash or cash equivalents
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,251,884	1,147,457
Commercial loans | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,537,778	3,316,543
Commercial loans | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,893,890	8,470,792
Commercial loans | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,063,264	9,316,479
Commercial loans | Pledged income
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,255,779	3,262,967
Loans to consumers
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	59,587,929	55,200,581
Loans to consumers | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	52,235,510	47,305,167
Loans to consumers | Loans secured by other banks
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	6,082	7,378
Loans to consumers | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	80,308	68,191
Loans to consumers | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,430,605	1,428,950
Loans to consumers | Investments in equity instruments
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,180	553
Loans to consumers | Deposits in cash or cash equivalents
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	154,016	156,229
Loans to consumers | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,584,600	5,773,201
Loans to consumers | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	52,060	422,093
Loans to consumers | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	42,865	38,516
Loans to consumers | Pledged income
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	703	303
Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,661,389	17,279,362
Mortgages | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,936	3,572
Mortgages | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,578,286	17,200,445
Mortgages | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	3,495	4,432
Mortgages | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	862	477
Mortgages | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	99	262
Mortgages | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	72,711	70,174
Microcredit
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	410,320	425,697
Microcredit | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	291,480	289,518
Microcredit | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,335	4,040
Microcredit | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	422	542
Microcredit | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	565	668
Microcredit | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	22,644	32,983
Microcredit | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	92,874	97,946
Financial leasing
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	12,161,757	11,426,176
Financial leasing | Unsecured credits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	54,217	44,221
Financial leasing | Loans secured by other banks
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost		6,102
Financial leasing | Collateralized Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,854	4,644
Financial leasing | Other real estate
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	118,256	116,884
Financial leasing | Pledges
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,468	6,379
Financial leasing | Other assets [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,784,964	1,654,084
Financial leasing | Leased machineries and vehicles
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,051,776	9,221,950
Financial leasing | Fiduciary agreements, stand by letters and guarantee funds
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	123,494	361,515
Financial leasing | Pledged income
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,728	10,397
Credit-impaired | Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	1,659,725	1,225,001
Collateral Guarantees	1,543,378	1,058,671
Lifetime ECL | Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Financial assets	20,203,110	18,133,215
Collateral Guarantees	$ 19,372,921	$ 17,679,213

RISK MANAGEMENT - Credit risk m

RISK MANAGEMENT - Credit risk model scenario tables (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Risk Management
Loan allowance		$ 8,185,797	$ 8,196,187
Scenario A
Risk Management
Gross Exposure		182,128,114	176,881,841
Loan allowance		8,060,699	7,947,291
Scenario B
Risk Management
Gross Exposure		182,128,114	176,881,841
Loan allowance		8,163,075	8,083,691
Scenario C
Risk Management
Gross Exposure		182,128,114	176,881,841
Loan allowance		$ 8,311,060	8,233,994
Colombia | Scenario A
Risk Management
Inflation		3.72%
Interest rates		4.25%
GDP growth		3.01%
House prices		(2.68%)
Unemployment rate		10.72%
Colombia | Scenario B
Risk Management
Inflation		3.83%
Interest rates		4.25%
GDP growth		3.20%
House prices		(0.85%)
Unemployment rate		10.25%
Colombia | Scenario C
Risk Management
Inflation		3.95%
Interest rates		4.25%
GDP growth		3.57%
House prices		1.07%
Unemployment rate		10.01%
Colombia | Scenario A - forecast
Risk Management
Inflation	2.46%
Interest rates	3.50%
GDP growth	2.17%
House prices	(3.29%)
Unemployment rate	11.12%
Colombia | Scenario B - forecast
Risk Management
Inflation	3.38%
Interest rates	4.25%
GDP growth	3.22%
House prices	0.96%
Unemployment rate	10.22%
Colombia | Scenario C - forecast
Risk Management
Inflation	4.07%
Interest rates	5.25%
GDP growth	4.19%
House prices	7.03%
Unemployment rate	9.30%
Guatemala | Scenario A - forecast
Risk Management
Inflation	3.72%
Interest rates	0.26%
GDP growth	2.15%
Exchange Rate	1.54%
Guatemala | Scenario B - forecast
Risk Management
Inflation	3.53%
Interest rates	(0.03%)
GDP growth	3.19%
Exchange Rate	(0.46%)
Guatemala | Scenario C - forecast
Risk Management
Inflation	3.26%
Interest rates	(0.30%)
GDP growth	3.71%
Exchange Rate	(0.95%)
Honduras | Scenario A - forecast
Risk Management
Inflation	5.07%
Interest rates	(0.30%)
GDP growth	1.98%
Exchange Rate	4.50%
Honduras | Scenario B - forecast
Risk Management
Inflation	4.61%
Interest rates	(1.45%)
GDP growth	2.95%
Exchange Rate	3.34%
Honduras | Scenario C - forecast
Risk Management
Inflation	3.34%
Interest rates	(3.25%)
GDP growth	4.04%
Exchange Rate	0.72%
El Salvador | Scenario A - forecast
Risk Management
Inflation	2.11%
Interest rates	0.34%
GDP growth	1.84%
El Salvador | Scenario B - forecast
Risk Management
Inflation	0.97%
Interest rates	0.03%
GDP growth	2.40%
El Salvador | Scenario C - forecast
Risk Management
Interest rates	(0.07%)
GDP growth	2.80%
Nicaragua | Scenario A - forecast
Risk Management
Inflation	8.92%
Interest rates	4.93%
GDP growth	(5.61%)
Exchange Rate	3.74%
Nicaragua | Scenario B - forecast
Risk Management
Inflation	6.58%
Interest rates	1.70%
GDP growth	(3.08%)
Exchange Rate	3.01%
Nicaragua | Scenario C - forecast
Risk Management
Inflation	3.34%
Interest rates	(0.99%)
GDP growth	(1.26%)
Exchange Rate	2.72%
Costa Rica | Scenario A - forecast
Risk Management
Inflation	4.04%
Interest rates	(0.99%)
GDP growth	1.76%
Exchange Rate	3.93%
Costa Rica | Scenario B - forecast
Risk Management
Inflation	1.91%
Interest rates	(1.58%)
GDP growth	2.59%
Exchange Rate	0.22%
Costa Rica | Scenario C - forecast
Risk Management
Inflation	1.76%
Interest rates	(1.81%)
GDP growth	3.03%
Exchange Rate	(1.07%)
Panama | Scenario A - forecast
Risk Management
Inflation	1.71%
Interest rates	0.56%
GDP growth	2.97%
Panama | Scenario B - forecast
Risk Management
Inflation	0.77%
Interest rates	0.08%
GDP growth	3.83%
Panama | Scenario C - forecast
Risk Management
Inflation	0.54%
Interest rates	(0.35%)
GDP growth	4.89%
Commercial loans | Scenario A
Risk Management
Gross Exposure		$ 91,306,719	92,550,025
Loan allowance		$ 3,682,865	$ 3,827,201
Proportion of Assets in Stage 2		4.10%	4.00%
Commercial loans | Scenario B
Risk Management
Gross Exposure		$ 91,306,719	$ 92,550,025
Loan allowance		$ 3,730,491	$ 3,856,836
Proportion of Assets in Stage 2		4.10%	4.10%
Commercial loans | Scenario C
Risk Management
Gross Exposure		$ 91,306,719	$ 92,550,025
Loan allowance		$ 3,809,884	$ 3,907,811
Proportion of Assets in Stage 2		4.20%	4.00%
Loans to consumers | Scenario A
Risk Management
Gross Exposure		$ 59,587,929	$ 55,200,581
Loan allowance		$ 3,487,398	$ 3,354,040
Proportion of Assets in Stage 2		8.90%	10.40%
Loans to consumers | Scenario B
Risk Management
Gross Exposure		$ 59,587,929	$ 55,200,581
Loan allowance		$ 3,530,429	$ 3,444,257
Proportion of Assets in Stage 2		9.20%	10.60%
Loans to consumers | Scenario C
Risk Management
Gross Exposure		$ 59,587,929	$ 55,200,581
Loan allowance		$ 3,583,059	$ 3,527,918
Proportion of Assets in Stage 2		9.40%	11.00%
Mortgages | Scenario A
Risk Management
Gross Exposure		$ 18,661,389	$ 17,279,362
Loan allowance		$ 296,025	$ 237,707
Proportion of Assets in Stage 2		7.60%	9.30%
Mortgages | Scenario B
Risk Management
Gross Exposure		$ 18,661,389	$ 17,279,362
Loan allowance		$ 300,681	$ 250,531
Proportion of Assets in Stage 2		8.20%	9.90%
Mortgages | Scenario C
Risk Management
Gross Exposure		$ 18,661,389	$ 17,279,362
Loan allowance		$ 310,584	$ 267,261
Proportion of Assets in Stage 2		8.60%	11.00%
Microcredit | Scenario A
Risk Management
Gross Exposure		$ 410,320	$ 425,697
Loan allowance		$ 88,461	$ 87,789
Proportion of Assets in Stage 2		6.80%	6.60%
Microcredit | Scenario B
Risk Management
Gross Exposure		$ 410,320	$ 425,697
Loan allowance		$ 89,720	$ 88,197
Proportion of Assets in Stage 2		6.80%	6.60%
Microcredit | Scenario C
Risk Management
Gross Exposure		$ 410,320	$ 425,697
Loan allowance		$ 91,071	$ 88,472
Proportion of Assets in Stage 2		6.80%	6.60%
Financial leasing | Scenario A
Risk Management
Gross Exposure		$ 12,161,757	$ 11,426,176
Loan allowance		$ 505,950	$ 440,554
Proportion of Assets in Stage 2		3.80%	2.60%
Financial leasing | Scenario B
Risk Management
Gross Exposure		$ 12,161,757	$ 11,426,176
Loan allowance		$ 511,754	$ 443,870
Proportion of Assets in Stage 2		4.20%	2.60%
Financial leasing | Scenario C
Risk Management
Gross Exposure		$ 12,161,757	$ 11,426,176
Loan allowance		$ 516,462	$ 442,532
Proportion of Assets in Stage 2		4.30%	2.60%

RISK MANAGEMENT - Scenario of p

RISK MANAGEMENT - Scenario of probability weighting in measuring ECL (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Colombia | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	23.00%	25.00%
Colombia | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	60.00%	53.00%
Colombia | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	17.00%	22.00%
Guatemala | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	10.00%	20.00%
Guatemala | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	70.00%	60.00%
Guatemala | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	20.00%	20.00%
Honduras | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	10.00%	30.00%
Honduras | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	65.00%	55.00%
Honduras | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	25.00%	15.00%
El Salvador | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	15.00%	10.00%
El Salvador | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	70.00%	80.00%
El Salvador | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	15.00%	10.00%
Nicaragua | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	15.00%	5.00%
Nicaragua | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	70.00%	50.00%
Nicaragua | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	15.00%	45.00%
Costa Rica | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	20.00%	40.00%
Costa Rica | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	60.00%	50.00%
Costa Rica | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	20.00%	10.00%
Panama | Scenario A
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	15.00%	5.00%
Panama | Scenario B
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	60.00%	70.00%
Panama | Scenario C
Risk Management
Scenario probability weighting in measuring ECL (as a percent)	25.00%	25.00%

RISK MANAGEMENT - Credit risk_2

RISK MANAGEMENT - Credit risk model - loss allowance (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	$ (259,515,428)	$ (245,105,338)
Market risk
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(27,376,239)	(23,528,815)
Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	8,557,039	8,611,594	$ 5,875,018
Accumulated impairment | Loan commitments and financial guarantee contracts
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	49,962	59,428	29,675
Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,946,817	1,906,117
Accumulated impairment | 12-month ECL | Loan commitments and financial guarantee contracts
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	45,509	40,715	23,922
Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,174,683	1,254,945
Accumulated impairment | Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	2,945	14,358	1,719
Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	5,262,232	5,291,229
Accumulated impairment | Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,508	4,355	4,034
Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	8,185,797	8,196,187	5,618,481
Loan portfolio | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,853,138	1,824,874	1,227,363
Loan portfolio | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,158,732	1,197,046	583,584
Loan portfolio | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	5,173,927	5,174,267	3,807,534
Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(21,862,835)	(19,358,216)
Commercial loans | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(1,659,725)	(1,225,001)
Commercial loans | Lifetime ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(20,203,110)	(18,133,215)
Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	3,739,330	3,937,449	2,659,322
Commercial loans | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	642,839	695,728	492,561
Commercial loans | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	190,697	190,633	91,930
Commercial loans | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	2,905,794	3,051,088	2,074,831
Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	3,548,580	3,442,311	2,456,791
Loans to consumers | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,076,150	998,390	656,042
Loans to consumers | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	851,651	890,556	446,698
Loans to consumers | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,620,779	1,553,365	1,354,051
Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	306,237	257,243	130,882
Mortgages | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	43,492	35,187	14,501
Mortgages | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	73,109	73,461	20,032
Mortgages | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	189,636	148,595	96,349
Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	501,825	471,007	297,319
Financial leasing | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	65,863	72,221	42,838
Financial leasing | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	31,356	30,434	17,447
Financial leasing | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	404,606	368,352	237,034
Trade receivables / other accounts receivable
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(11,702,301)	(9,300,643)
Trade receivables / other accounts receivable | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(4,719,510)	(2,971,500)
Trade receivables / other accounts receivable | 12-month ECL | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(4,719,510)	(2,971,500)
Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	286,463	256,891
Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	113,156	97,588	89,431
Other accounts receivable, general approach | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	13,353	19,700	12,911
Other accounts receivable, general approach | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	13,006	11,561	5,909
Other accounts receivable, general approach | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	86,797	66,327	70,611
Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	173,307	159,303
Other accounts receivable, simplified approach | Accumulated impairment | Lifetime ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	173,307	159,303	137,431
Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(224,581,946)	(215,324,860)
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	8,472,997	8,453,149
Financial assets at amortised cost, category [member] | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,867,228	1,844,645
Financial assets at amortised cost, category [member] | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,171,738	1,208,607
Financial assets at amortised cost, category [member] | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	5,260,724	5,240,594
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	8,185,797	8,196,187
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,853,138	1,824,874
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,158,732	1,197,046
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	5,173,927	5,174,267
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	3,739,330	3,937,449
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	642,839	695,728
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	190,697	190,633
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	2,905,794	3,051,088
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	3,548,580	3,442,311
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,076,150	998,390
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	851,651	890,556
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	1,620,779	1,553,365
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	306,237	257,243
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	43,492	35,187
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	73,109	73,461
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	189,636	148,595
Financial assets at amortised cost, category [member] | Microcredit | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	89,825	88,177
Financial assets at amortised cost, category [member] | Microcredit | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	24,794	23,348
Financial assets at amortised cost, category [member] | Microcredit | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	11,919	11,962
Financial assets at amortised cost, category [member] | Microcredit | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	53,112	52,867
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	501,825	471,007
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	65,863	72,221
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	31,356	30,434
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	404,606	368,352
Financial assets at amortised cost, category [member] | Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	286,463	256,891
Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	13,353	19,700
Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	13,006	11,561
Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	86,797	66,327
Financial assets at amortised cost, category [member] | Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	173,307	159,303
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(21,608,992)	(18,935,757)
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	34,080	99,017
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	34,080	20,757
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		31,980
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		46,280
Debt securities | Market risk
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(26,292,207)	(22,729,991)
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	737	71
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	737	71
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	34,080	99,017	71,708
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | 12-month ECL
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	34,080	20,757
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Lifetime ECL | Not credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		31,980
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Lifetime ECL | Credit-impaired
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		46,280	$ 71,708
Financial Entities | Trade receivables / other accounts receivable | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(391,482)	(340,265)
Financial Entities | Trade receivables / other accounts receivable | 12-month ECL | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(391,482)	(340,265)
Sovereign | Trade receivables / other accounts receivable | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	(4,328,028)	(2,631,235)
Sovereign | Trade receivables / other accounts receivable | 12-month ECL | Investment grade
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	$ (4,328,028)	$ (2,631,235)

RISK MANAGEMENT - Loans individ

RISK MANAGEMENT - Loans individually evaluated for impairment (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	820,406	1,202,627
Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	47,703	447,439
Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	772,703	755,188
Commercial loans
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	21,862,835	19,358,216
Collateral Guarantees	20,916,299	18,737,884
Commercial loans | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	20,203,110	18,133,215
Collateral Guarantees	19,372,921	17,679,213
Commercial loans | Credit-impaired
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	1,659,725	1,225,001
Collateral Guarantees	1,543,378	1,058,671
Commercial loans | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	681,719	638,247
Commercial loans | Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	47,703	126,642
Commercial loans | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	634,016	511,605
Loans to consumers | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	832	560
Loans to consumers | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	832	560
Financial leasing | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	137,855	563,820
Financial leasing | Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees		320,797
Financial leasing | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Collateral Guarantees	137,855	243,023
Gross carrying amount | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	5,905,936	6,651,883
Gross carrying amount | Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	104,435	201,412
Gross carrying amount | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	5,801,501	6,450,471
Gross carrying amount | Loan portfolio
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	182,128,114	176,881,841	$ 166,372,717
Gross carrying amount | Loan portfolio | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	9,864,619	10,273,912	8,026,341
Gross carrying amount | Commercial loans
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	91,306,719	92,550,025	89,776,600
Gross carrying amount | Commercial loans | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	5,839,328	6,667,944	4,722,249
Gross carrying amount | Commercial loans | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	5,069,822	5,873,899
Gross carrying amount | Commercial loans | Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	67,450	85,531
Gross carrying amount | Commercial loans | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	5,002,372	5,788,368
Gross carrying amount | Loans to consumers
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	59,587,929	55,200,581	50,156,130
Gross carrying amount | Loans to consumers | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	2,373,053	2,208,944	2,291,183
Gross carrying amount | Loans to consumers | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	3,177	2,604
Gross carrying amount | Loans to consumers | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	3,177	2,604
Gross carrying amount | Financial leasing
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	12,161,757	11,426,176	10,929,300
Gross carrying amount | Financial leasing | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	1,046,411	963,860	701,786
Gross carrying amount | Financial leasing | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	832,937	775,380
Gross carrying amount | Financial leasing | Credit-impaired | Lifetime ECL | Without recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	36,985	115,881
Gross carrying amount | Financial leasing | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	795,952	659,499
Accumulated impairment
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(8,557,039)	(8,611,594)	(5,875,018)
Accumulated impairment | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(5,262,232)	(5,291,229)
Accumulated impairment | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,437,611)	(2,428,132)
Accumulated impairment | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,437,611)	(2,428,132)
Accumulated impairment | Loan portfolio
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(8,185,797)	(8,196,187)	(5,618,481)
Accumulated impairment | Loan portfolio | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(5,173,927)	(5,174,267)	(3,807,534)
Accumulated impairment | Commercial loans
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(3,739,330)	(3,937,449)	(2,659,322)
Accumulated impairment | Commercial loans | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,905,794)	(3,051,088)	(2,074,831)
Accumulated impairment | Commercial loans | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,150,877)	(2,195,263)
Accumulated impairment | Commercial loans | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,150,877)	(2,195,263)
Accumulated impairment | Loans to consumers
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(3,548,580)	(3,442,311)	(2,456,791)
Accumulated impairment | Loans to consumers | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(1,620,779)	(1,553,365)	(1,354,051)
Accumulated impairment | Loans to consumers | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,238)	(1,813)
Accumulated impairment | Loans to consumers | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(2,238)	(1,813)
Accumulated impairment | Financial leasing
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(501,825)	(471,007)	(297,319)
Accumulated impairment | Financial leasing | Credit-impaired | Lifetime ECL
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(404,606)	(368,352)	$ (237,034)
Accumulated impairment | Financial leasing | Credit-impaired | Lifetime ECL | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	(284,496)	(231,056)
Accumulated impairment | Financial leasing | Credit-impaired | Lifetime ECL | With recognized provision | Expected credit losses individually assessed [member]
Disclosure of financial assets that are either past due or impaired [line items]
Financial assets	$ (284,496)	$ (231,056)

RISK MANAGEMENT - Loss allowanc

RISK MANAGEMENT - Loss allowance roll forward (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	$ (245,105,338)
Ending balance	(259,515,428)	$ (245,105,338)
Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	8,611,594	5,875,018
Ending balance	8,557,039	8,611,594
Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	59,428	29,675
Net remeasurement of loss allowance	(33,835)	8,794
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	24,115	4,572
FX and other movements	254	170
Ending balance	49,962	59,428
Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		16,217
Ending balance
Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		45,892
Ending balance
Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	8,196,187	5,618,481
Net remeasurement of loss allowance	3,975,607	3,851,325
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	982,209	1,322,065
Financial assets that have been derecognized	(785,075)	(1,069,705)
Unwind of discount	504,437	381,983
FX and other movements	29,379	75,712
Entity deconsolidation		2,307
Write-offs / Charge-offs of the year	4,716,947	3,148,990
Ending balance	8,185,797	8,196,187
Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,163,009
Ending balance
Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		6,781,490
Ending balance
Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(176,881,841)	(166,372,717)
FX and other movements	(893,900)	5,510,945
Entity deconsolidation		2,019
Write-offs / Charge-offs of the year	(4,716,947)	(3,148,990)
Ending balance	(182,128,114)	(176,881,841)
Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(19,358,216)
Ending balance	(21,862,835)	(19,358,216)
Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,937,449	2,659,322
Net remeasurement of loss allowance	1,204,664	1,016,637
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	438,102	525,163
Financial assets that have been derecognized	(407,549)	(370,151)
Unwind of discount	370,719	268,874
FX and other movements	(2,993)	17,805
Write-offs / Charge-offs of the year	1,801,062	437,274
Ending balance	3,739,330	3,937,449
Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		257,073
Ending balance
Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		2,916,395
Ending balance
Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(92,550,025)	(89,776,600)
FX and other movements	(430,191)	(2,921,539)
Write-offs / Charge-offs of the year	(1,801,062)	(437,274)
Ending balance	(91,306,719)	(92,550,025)
Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,442,311	2,456,791
Net remeasurement of loss allowance	2,535,407	2,452,598
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	461,258	732,106
Financial assets that have been derecognized	(349,555)	(600,920)
Unwind of discount	89,544	80,174
FX and other movements	38,007	52,800
Write-offs / Charge-offs of the year	2,668,392	2,527,016
Ending balance	3,548,580	3,442,311
Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		795,778
Ending balance
Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		3,252,569
Ending balance
Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(55,200,581)	(50,156,130)
FX and other movements	(215,438)	(1,545,152)
Write-offs / Charge-offs of the year	(2,668,392)	(2,527,016)
Ending balance	(59,587,929)	(55,200,581)
Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	257,243	130,882
Net remeasurement of loss allowance	122,215	115,037
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	9,014	11,093
Financial assets that have been derecognized	(10,657)	(19,259)
Unwind of discount	6,340	4,548
FX and other movements	(5,513)	4,946
Write-offs / Charge-offs of the year	72,405	46,200
Ending balance	306,237	257,243
Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		56,196
Ending balance
Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		187,078
Ending balance
Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(17,279,362)	(15,100,999)
FX and other movements	(131,993)	(858,482)
Write-offs / Charge-offs of the year	(72,405)	(46,200)
Ending balance	(18,661,389)	(17,279,362)
Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	88,177	74,167
Net remeasurement of loss allowance	33,997	21,732
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	13,679	16,721
Financial assets that have been derecognized	(2,736)	(3,858)
Unwind of discount	10,456	7,988
Write-offs / Charge-offs of the year	53,748	39,691
Ending balance	89,825	88,177
Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		11,118
Ending balance
Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		85,285
Ending balance
Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(425,697)	(409,688)
Write-offs / Charge-offs of the year	(53,748)	(39,691)
Ending balance	(410,320)	(425,697)
Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	471,007	297,319
Net remeasurement of loss allowance	79,324	245,321
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	60,156	36,982
Financial assets that have been derecognized	(14,578)	(75,517)
Unwind of discount	27,378	20,399
FX and other movements	(122)	161
Entity deconsolidation		2,307
Write-offs / Charge-offs of the year	121,340	98,809
Ending balance	501,825	471,007
Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		42,844
Ending balance
Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		340,163
Ending balance
Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(11,426,176)	(10,929,300)
FX and other movements	(116,278)	(185,772)
Entity deconsolidation		(2,019)
Write-offs / Charge-offs of the year	(121,340)	(98,809)
Ending balance	(12,161,757)	(11,426,176)
Trade receivables / other accounts receivable
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(9,300,643)
Ending balance	(11,702,301)	(9,300,643)
Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	256,891
Ending balance	286,463	256,891
Trade receivables / other accounts receivable | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		18,907
Ending balance
Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(9,557,534)
Ending balance	(11,988,764)	(9,557,534)
Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	97,588	89,431
Net remeasurement of loss allowance	40,263	15,259
FX and other movements	50	(2)
Write-offs / Charge-offs of the year	22,050	16,669
Ending balance	113,156	97,588
Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		9,569
Ending balance
Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		99,000
Ending balance
Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	159,303
Ending balance	173,307	159,303
Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(215,324,860)
Ending balance	(224,581,946)	(215,324,860)
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	8,453,149
Ending balance	8,472,997	8,453,149
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	8,196,187
Ending balance	8,185,797	8,196,187
Financial assets at amortised cost, category [member] | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(176,881,841)
Ending balance	(182,128,114)	(176,881,841)
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,937,449
Ending balance	3,739,330	3,937,449
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,442,311
Ending balance	3,548,580	3,442,311
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	257,243
Ending balance	306,237	257,243
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	471,007
Ending balance	501,825	471,007
Financial assets at amortised cost, category [member] | Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	256,891
Ending balance	286,463	256,891
Financial assets at amortised cost, category [member] | Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(7,069,120)
Ending balance	(9,282,734)	(7,069,120)
Financial assets at amortised cost, category [member] | Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	159,303
Ending balance	173,307	159,303
Financial assets at amortised cost, category [member] | Other accounts receivable, simplified approach | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(3,387,842)
Ending balance	(3,486,252)	(3,387,842)
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(18,935,757)
Ending balance	(21,608,992)	(18,935,757)
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	99,017
Ending balance	34,080	99,017
Debt securities | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(25,702,607)
Ending balance	(29,346,069)	(25,702,607)
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	71
Net remeasurement of loss allowance	(615)	(90)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	1,353	59
Financial assets that have been derecognized	(64)	(667)
FX and other movements	(8)	97
Ending balance	737	71
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		672
Ending balance
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		672
Ending balance
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	99,017	71,708
Net remeasurement of loss allowance	(11,315)	15,769
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	34,575	12,468
Financial assets that have been derecognized	(76,771)	(60,046)
FX and other movements	(11,426)	2,920
Ending balance	34,080	99,017
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		56,198
Ending balance
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		127,906
Ending balance
Credit-impaired | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(1,225,001)
Ending balance	(1,659,725)	(1,225,001)
12-month ECL | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,906,117
Ending balance	1,946,817	1,906,117
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	40,715	23,922
Transfer from stage 1 to stage 2	(529)	(2,350)
Transfer from stage 1 to stage 3	(172)	(2,167)
Transfer from stage 2 to stage 1	8,116	1,816
Transfer from stage 3 to stage 1	3,582	26
Net remeasurement of loss allowance	(29,069)	2,732
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	22,613	3,186
FX and other movements	253	169
Ending balance	45,509	40,715
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		13,381
Ending balance
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		37,303
Ending balance
12-month ECL | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,824,874	1,227,363
Transfer from stage 1 to stage 2	(231,472)	(255,031)
Transfer from stage 1 to stage 3	(132,800)	(214,542)
Transfer from stage 2 to stage 1	323,445	314,668
Transfer from stage 3 to stage 1	114,968	183,733
Net remeasurement of loss allowance	(352,578)	(90,021)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	659,037	1,011,984
Financial assets that have been derecognized	(366,590)	(568,424)
Unwind of discount	280	32,674
FX and other movements	52,724	4,703
Write-offs / Charge-offs of the year	38,750	312,350
Ending balance	1,853,138	1,824,874
12-month ECL | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		490,117
Ending balance
12-month ECL | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,717,480
Ending balance
12-month ECL | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(158,886,792)	(150,082,716)
Transfer from stage 1 to stage 2	(11,790,121)	(11,834,692)
Transfer from stage 1 to stage 3	(1,632,972)	(2,023,042)
Transfer from stage 3 to stage 2	6,281,477	7,343,231
Transfer from stage 3 to stage 1	582,523	621,006
FX and other movements	(613,810)	5,211,099
Write-offs / Charge-offs of the year	(38,750)	(312,350)
Ending balance	(164,206,688)	(158,886,792)
12-month ECL | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	695,728	492,561
Transfer from stage 1 to stage 2	(35,269)	(26,155)
Transfer from stage 1 to stage 3	(22,792)	(57,241)
Transfer from stage 2 to stage 1	38,767	65,954
Transfer from stage 3 to stage 1	17,627	30,590
Net remeasurement of loss allowance	(162,639)	(150,806)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	315,737	419,719
Financial assets that have been derecognized	(217,319)	(221,935)
Unwind of discount	280	31,974
FX and other movements	14,943	4,707
Write-offs / Charge-offs of the year	2,224	16,636
Ending balance	642,839	695,728
12-month ECL | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		122,996
Ending balance
12-month ECL | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		615,557
Ending balance
12-month ECL | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(84,218,469)	(82,949,511)
Transfer from stage 1 to stage 2	3,007,313	2,402,189
Transfer from stage 1 to stage 3	971,916	1,239,079
Transfer from stage 3 to stage 2	(924,096)	(1,267,680)
Transfer from stage 3 to stage 1	(212,841)	(193,843)
FX and other movements	(324,141)	(2,814,940)
Write-offs / Charge-offs of the year	(2,224)	(16,636)
Ending balance	(83,075,132)	(84,218,469)
12-month ECL | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	998,390	656,042
Transfer from stage 1 to stage 2	(177,237)	(209,235)
Transfer from stage 1 to stage 3	(96,220)	(149,571)
Transfer from stage 2 to stage 1	248,331	209,168
Transfer from stage 3 to stage 1	86,563	137,887
Net remeasurement of loss allowance	(142,334)	78,253
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	299,809	543,690
Financial assets that have been derecognized	(141,025)	(315,442)
Unwind of discount		474
FX and other movements	35,616	(7)
Write-offs / Charge-offs of the year	35,743	289,525
Ending balance	1,076,150	998,390
12-month ECL | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		336,656
Ending balance
12-month ECL | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		992,698
Ending balance
12-month ECL | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(48,625,173)	(43,867,292)
Transfer from stage 1 to stage 2	6,677,240	7,335,328
Transfer from stage 1 to stage 3	378,855	457,632
Transfer from stage 2 to stage 1	3,963,436	4,071,520
Transfer from stage 3 to stage 1	(222,132)	(294,316)
FX and other movements	(73,657)	(1,470,959)
Write-offs / Charge-offs of the year	(35,743)	(289,525)
Ending balance	(53,321,328)	(48,625,173)
12-month ECL | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	35,187	14,501
Transfer from stage 1 to stage 2	(4,605)	(7,711)
Transfer from stage 1 to stage 3	(693)	(1,558)
Transfer from stage 2 to stage 1	21,080	20,072
Transfer from stage 3 to stage 1	3,837	2,749
Net remeasurement of loss allowance	(19,923)	(3,510)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	8,995	8,999
Financial assets that have been derecognized	(709)	(4,131)
Unwind of discount		110
FX and other movements	805
Write-offs / Charge-offs of the year	482	561
Ending balance	43,492	35,187
12-month ECL | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	6,227
Ending balance		6,227
12-month ECL | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		20,728
Ending balance
12-month ECL | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(15,566,058)	(13,260,166)
Transfer from stage 1 to stage 2	1,571,950	1,662,941
Transfer from stage 1 to stage 3	13,719	9,776
Transfer from stage 2 to stage 1	(1,157,647)	(1,630,238)
Transfer from stage 3 to stage 1	(100,956)	(66,713)
FX and other movements	(104,234)	(741,139)
Write-offs / Charge-offs of the year	(482)	(561)
Ending balance	(16,812,000)	(15,566,058)
12-month ECL | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	23,348	21,421
Transfer from stage 1 to stage 2	(9,148)	(8,298)
Transfer from stage 1 to stage 3	(3,145)	(2,599)
Transfer from stage 2 to stage 1	5,854	6,305
Transfer from stage 3 to stage 1	945	6,062
Net remeasurement of loss allowance	(3,610)	(8,285)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	13,021	16,095
Financial assets that have been derecognized	(2,348)	(2,397)
Unwind of discount		103
Write-offs / Charge-offs of the year	123	5,584
Ending balance	24,794	23,348
12-month ECL | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		525
Ending balance
12-month ECL | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		21,946
Ending balance
12-month ECL | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(344,722)	(333,346)
Transfer from stage 1 to stage 2	60,329	57,561
Transfer from stage 1 to stage 3	15,698	14,127
Transfer from stage 2 to stage 1	(13,553)	(14,370)
Transfer from stage 3 to stage 1	(1,795)	(9,506)
Write-offs / Charge-offs of the year	(123)	(5,584)
Ending balance	(329,922)	(344,722)
12-month ECL | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	72,221	42,838
Transfer from stage 1 to stage 2	(5,213)	(3,632)
Transfer from stage 1 to stage 3	(9,950)	(3,573)
Transfer from stage 2 to stage 1	9,413	13,169
Transfer from stage 3 to stage 1	5,996	6,445
Net remeasurement of loss allowance	(24,072)	(5,673)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	21,475	23,481
Financial assets that have been derecognized	(5,189)	(24,519)
Unwind of discount		13
FX and other movements	1,360	3
Write-offs / Charge-offs of the year	178	44
Ending balance	65,863	72,221
12-month ECL | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		23,713
Ending balance
12-month ECL | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		66,551
Ending balance
12-month ECL | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(10,132,370)	(9,672,401)
Transfer from stage 1 to stage 2	473,289	376,673
Transfer from stage 1 to stage 3	252,784	302,428
Transfer from stage 2 to stage 1	(222,745)	(359,423)
Transfer from stage 3 to stage 1	(44,799)	(56,628)
FX and other movements	(111,778)	(184,061)
Write-offs / Charge-offs of the year	(178)	(44)
Ending balance	(10,668,306)	(10,132,370)
12-month ECL | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	19,700	12,911
Transfer from stage 1 to stage 3	(19,176)
Net remeasurement of loss allowance	8,062	19,439
FX and other movements	21	(2)
Write-offs / Charge-offs of the year	4,208	16,669
Ending balance	13,353	19,700
12-month ECL | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		4,021
Ending balance
12-month ECL | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		16,932
Ending balance
12-month ECL | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,844,645
Ending balance	1,867,228	1,844,645
12-month ECL | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,824,874
Ending balance	1,853,138	1,824,874
12-month ECL | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	695,728
Ending balance	642,839	695,728
12-month ECL | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	998,390
Ending balance	1,076,150	998,390
12-month ECL | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	35,187
Ending balance	43,492	35,187
12-month ECL | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	72,221
Ending balance	65,863	72,221
12-month ECL | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	19,700
Ending balance	13,353	19,700
12-month ECL | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	20,757
Ending balance	34,080	20,757
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	71
Net remeasurement of loss allowance	(615)	(90)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	1,353	59
Financial assets that have been derecognized	(64)	(667)
FX and other movements	(8)	97
Ending balance	737	71
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		672
Ending balance
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		672
Ending balance
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	20,757
Transfer from stage 1 to stage 2		(272)
Net remeasurement of loss allowance	(7,696)	(2,361)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	34,575	12,018
Financial assets that have been derecognized	(3,729)	(7,937)
FX and other movements	(9,827)	644
Ending balance	34,080	20,757
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		18,665
Ending balance
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		18,665
Ending balance
Lifetime ECL | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(18,133,215)
Ending balance	(20,203,110)	(18,133,215)
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	159,303	137,431
Entity deconsolidation	(56)	6,731
Provision charged to profit or loss	(35,506)	65,230
Recovery for partial payments from the clients	(11,129)	(12,373)
Write-offs / Charge-offs of the year	13,097	47,309
Ending balance	173,307	159,303
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		9,338
Ending balance
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		146,769
Ending balance
Lifetime ECL | Not credit-impaired | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,254,945
Ending balance	1,174,683	1,254,945
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	14,358	1,719
Transfer from stage 1 to stage 2	529	2,350
Transfer from stage 2 to stage 3	(173)	(156)
Transfer from stage 2 to stage 1	(8,116)	(1,816)
Transfer from stage 3 to stage 2		13
Net remeasurement of loss allowance	(4,528)	11,071
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	875	(1,909)
FX and other movements		1
Ending balance	2,945	14,358
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		3,085
Ending balance
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		4,804
Ending balance
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,197,046	583,584
Transfer from stage 1 to stage 2	231,472	255,031
Transfer from stage 2 to stage 3	(567,849)	(631,932)
Transfer from stage 2 to stage 1	(323,445)	(314,668)
Transfer from stage 3 to stage 2	104,502	107,331
Net remeasurement of loss allowance	632,102	746,773
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	119,690	156,320
Financial assets that have been derecognized	(241,128)	(177,729)
Unwind of discount	2,155	(3,809)
FX and other movements	49,148
Write-offs / Charge-offs of the year	44,961	120,592
Ending balance	1,158,732	1,197,046
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		596,737
Ending balance
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,180,321
Ending balance
Lifetime ECL | Not credit-impaired | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(7,721,137)	(8,263,660)
Transfer from stage 1 to stage 2	11,790,121	11,834,692
Transfer from stage 2 to stage 3	(4,150,773)	(4,493,810)
Transfer from stage 2 to stage 1	743,373	761,405
Transfer from stage 3 to stage 2	(6,281,477)	(7,343,231)
FX and other movements	(78,913)	253,756
Write-offs / Charge-offs of the year	(44,961)	(120,592)
Ending balance	(8,056,807)	(7,721,137)
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	190,633	91,930
Transfer from stage 1 to stage 2	35,269	26,155
Transfer from stage 2 to stage 3	(90,108)	(141,368)
Transfer from stage 2 to stage 1	(38,767)	(65,954)
Transfer from stage 3 to stage 2	16,665	17,836
Net remeasurement of loss allowance	84,562	153,621
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	22,634	37,317
Financial assets that have been derecognized	(39,985)	(24,707)
Unwind of discount	2,136	(2,615)
FX and other movements	8,443
Write-offs / Charge-offs of the year	785	2,020
Ending balance	190,697	190,633
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		100,438
Ending balance
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		192,368
Ending balance
Lifetime ECL | Not credit-impaired | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(1,663,612)	(2,104,840)
Transfer from stage 1 to stage 2	(3,007,313)	(2,402,189)
Transfer from stage 2 to stage 3	909,907	1,347,289
Transfer from stage 2 to stage 1	(148,025)	(158,589)
Transfer from stage 3 to stage 2	924,096	1,267,680
FX and other movements	(15,482)	(44,303)
Write-offs / Charge-offs of the year	(785)	(2,020)
Ending balance	(2,392,259)	(1,663,612)
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	890,556	446,698
Transfer from stage 1 to stage 2	177,237	209,235
Transfer from stage 2 to stage 3	(423,340)	(432,509)
Transfer from stage 2 to stage 1	(248,331)	(209,168)
Transfer from stage 3 to stage 2	73,246	77,046
Net remeasurement of loss allowance	491,096	518,410
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	92,985	113,235
Financial assets that have been derecognized	(192,886)	(139,703)
Unwind of discount	19	(514)
FX and other movements	34,874
Write-offs / Charge-offs of the year	43,805	118,310
Ending balance	851,651	890,556
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		426,136
Ending balance
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		872,834
Ending balance
Lifetime ECL | Not credit-impaired | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(4,366,464)	(3,997,655)
Transfer from stage 1 to stage 2	(6,677,240)	(7,335,328)
Transfer from stage 2 to stage 3	2,662,543	2,585,329
Transfer from stage 2 to stage 1	(3,963,436)	(4,071,520)
Transfer from stage 3 to stage 2	472,001	483,063
FX and other movements	(42,397)	(96,499)
Write-offs / Charge-offs of the year	(43,805)	(118,310)
Ending balance	(3,893,548)	(4,366,464)
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	73,461	20,032
Transfer from stage 1 to stage 2	4,605	7,711
Transfer from stage 2 to stage 3	(22,042)	(21,022)
Transfer from stage 2 to stage 1	(21,080)	(20,072)
Transfer from stage 3 to stage 2	6,965	6,872
Net remeasurement of loss allowance	32,334	45,162
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	183	2,047
Financial assets that have been derecognized	(6,683)	(8,742)
Unwind of discount		(143)
FX and other movements	5,502
Write-offs / Charge-offs of the year	136	74
Ending balance	73,109	73,461
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		41,690
Ending balance
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		61,722
Ending balance
Lifetime ECL | Not credit-impaired | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(1,335,741)	(1,577,671)
Transfer from stage 1 to stage 2	(1,571,950)	(1,662,941)
Transfer from stage 2 to stage 3	439,320	362,596
Transfer from stage 2 to stage 1	1,157,647	1,630,238
Transfer from stage 3 to stage 2	(96,627)	(94,175)
FX and other movements	(17,163)	(111,799)
Write-offs / Charge-offs of the year	(136)	(74)
Ending balance	(1,299,159)	(1,335,741)
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	11,962	7,477
Transfer from stage 1 to stage 2	9,148	8,298
Transfer from stage 2 to stage 3	(23,678)	(30,052)
Transfer from stage 2 to stage 1	(5,854)	(6,305)
Transfer from stage 3 to stage 2	2,539	1,961
Net remeasurement of loss allowance	17,500	20,392
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	651	626
Financial assets that have been derecognized	(266)	(600)
Unwind of discount		(381)
Write-offs / Charge-offs of the year	83	45
Ending balance	11,919	11,962
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		10,591
Ending balance
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		18,068
Ending balance
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(25,374)	(28,381)
Transfer from stage 1 to stage 2	(60,329)	(57,561)
Transfer from stage 2 to stage 3	47,227	46,429
Transfer from stage 2 to stage 1	13,553	14,370
Transfer from stage 3 to stage 2	(4,530)	(4,213)
Write-offs / Charge-offs of the year	(83)	(45)
Ending balance	(24,801)	(25,374)
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	30,434	17,447
Transfer from stage 1 to stage 2	5,213	3,632
Transfer from stage 2 to stage 3	(8,681)	(6,981)
Transfer from stage 2 to stage 1	(9,413)	(13,169)
Transfer from stage 3 to stage 2	5,087	3,616
Net remeasurement of loss allowance	6,610	9,188
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	3,237	3,095
Financial assets that have been derecognized	(1,308)	(3,977)
Unwind of discount		(156)
FX and other movements	329
Write-offs / Charge-offs of the year	152	143
Ending balance	31,356	30,434
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		17,882
Ending balance
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		35,329
Ending balance
Lifetime ECL | Not credit-impaired | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(329,946)	(555,113)
Transfer from stage 1 to stage 2	(473,289)	(376,673)
Transfer from stage 2 to stage 3	91,776	152,167
Transfer from stage 2 to stage 1	222,745	359,423
Transfer from stage 3 to stage 2	(22,190)	(21,365)
FX and other movements	(3,871)	(1,155)
Write-offs / Charge-offs of the year	(152)	(143)
Ending balance	(447,040)	(329,946)
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	11,561	5,909
Transfer from stage 2 to stage 3	(754)
Net remeasurement of loss allowance	4,160	1,901
FX and other movements	6
Write-offs / Charge-offs of the year	534
Ending balance	13,006	11,561
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		3,751
Ending balance
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		9,660
Ending balance
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,208,607
Ending balance	1,171,738	1,208,607
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,197,046
Ending balance	1,158,732	1,197,046
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	190,633
Ending balance	190,697	190,633
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	890,556
Ending balance	851,651	890,556
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	73,461
Ending balance	73,109	73,461
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	30,434
Ending balance	31,356	30,434
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	11,561
Ending balance	13,006	11,561
Lifetime ECL | Not credit-impaired | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	31,980
Ending balance		31,980
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	31,980
Transfer from stage 1 to stage 2		272
Net remeasurement of loss allowance	(3,564)	(28)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued		450
Financial assets that have been derecognized	(27,440)	(2,688)
FX and other movements	(976)	2,260
Ending balance		31,980
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		31,714
Ending balance
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		31,714
Ending balance
Lifetime ECL | Credit-impaired | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	5,291,229
Ending balance	5,262,232	5,291,229
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	4,355	4,034
Transfer from stage 1 to stage 3	172	2,167
Transfer from stage 2 to stage 3	173	156
Transfer from stage 3 to stage 2		(13)
Transfer from stage 3 to stage 1	(3,582)	(26)
Net remeasurement of loss allowance	(238)	(5,009)
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	627	3,295
FX and other movements	1
Ending balance	1,508	4,355
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		(249)
Ending balance
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		3,785
Ending balance
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	5,174,267	3,807,534
Transfer from stage 1 to stage 3	132,800	214,542
Transfer from stage 2 to stage 3	567,849	631,932
Transfer from stage 3 to stage 2	(104,502)	(107,331)
Transfer from stage 3 to stage 1	(114,968)	(183,733)
Net remeasurement of loss allowance	3,696,083	3,194,573
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	203,482	153,761
Financial assets that have been derecognized	(177,357)	(323,552)
Unwind of discount	502,002	353,118
FX and other movements	(72,493)	71,009
Entity deconsolidation		2,307
Write-offs / Charge-offs of the year	4,633,236	2,716,048
Ending balance	5,173,927	5,174,267
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		76,155
Ending balance
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		3,883,689
Ending balance
Lifetime ECL | Credit-impaired | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(10,273,912)	(8,026,341)
Transfer from stage 1 to stage 3	1,632,972	2,023,042
Transfer from stage 2 to stage 3	4,150,773	4,493,810
Transfer from stage 2 to stage 1	(743,373)	(761,405)
Transfer from stage 3 to stage 1	(582,523)	(621,006)
FX and other movements	(201,177)	46,090
Entity deconsolidation		2,019
Write-offs / Charge-offs of the year	(4,633,236)	(2,716,048)
Ending balance	(9,864,619)	(10,273,912)
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,051,088	2,074,831
Transfer from stage 1 to stage 3	22,792	57,241
Transfer from stage 2 to stage 3	90,108	141,368
Transfer from stage 3 to stage 2	(16,665)	(17,836)
Transfer from stage 3 to stage 1	(17,627)	(30,590)
Net remeasurement of loss allowance	1,282,741	1,013,822
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	99,731	68,127
Financial assets that have been derecognized	(150,245)	(123,509)
Unwind of discount	368,303	239,515
FX and other movements	(26,379)	13,098
Write-offs / Charge-offs of the year	1,798,053	418,618
Ending balance	2,905,794	3,051,088
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		33,639
Ending balance
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		2,108,470
Ending balance
Lifetime ECL | Credit-impaired | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(6,667,944)	(4,722,249)
Transfer from stage 1 to stage 3	(971,916)	(1,239,079)
Transfer from stage 2 to stage 3	(909,907)	(1,347,289)
Transfer from stage 2 to stage 1	148,025	158,589
Transfer from stage 3 to stage 1	212,841	193,843
FX and other movements	(90,568)	(62,296)
Write-offs / Charge-offs of the year	(1,798,053)	(418,618)
Ending balance	(5,839,328)	(6,667,944)
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,553,365	1,354,051
Transfer from stage 1 to stage 3	96,220	149,571
Transfer from stage 2 to stage 3	423,340	432,509
Transfer from stage 3 to stage 2	(73,246)	(77,046)
Transfer from stage 3 to stage 1	(86,563)	(137,887)
Net remeasurement of loss allowance	2,186,645	1,855,935
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	68,464	75,181
Financial assets that have been derecognized	(15,644)	(145,775)
Unwind of discount	89,525	80,214
FX and other movements	(32,483)	52,807
Write-offs / Charge-offs of the year	2,588,844	2,119,181
Ending balance	1,620,779	1,553,365
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		32,986
Ending balance
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,387,037
Ending balance
Lifetime ECL | Credit-impaired | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(2,208,944)	(2,291,183)
Transfer from stage 1 to stage 3	(378,855)	(457,632)
Transfer from stage 2 to stage 3	(2,662,543)	(2,585,329)
Transfer from stage 3 to stage 2	(472,001)	(483,063)
Transfer from stage 3 to stage 1	222,132	294,316
FX and other movements	(99,384)	22,306
Write-offs / Charge-offs of the year	(2,588,844)	(2,119,181)
Ending balance	(2,373,053)	(2,208,944)
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	148,595	96,349
Transfer from stage 1 to stage 3	693	1,558
Transfer from stage 2 to stage 3	22,042	21,022
Transfer from stage 3 to stage 2	(6,965)	(6,872)
Transfer from stage 3 to stage 1	(3,837)	(2,749)
Net remeasurement of loss allowance	109,804	73,385
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	(164)	47
Financial assets that have been derecognized	(3,265)	(6,386)
Unwind of discount	6,340	4,581
FX and other movements	(11,820)	4,946
Write-offs / Charge-offs of the year	71,787	45,565
Ending balance	189,636	148,595
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		8,279
Ending balance
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		104,628
Ending balance
Lifetime ECL | Credit-impaired | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(377,563)	(263,162)
Transfer from stage 1 to stage 3	(13,719)	(9,776)
Transfer from stage 2 to stage 3	(439,320)	(362,596)
Transfer from stage 3 to stage 2	96,627	94,175
Transfer from stage 3 to stage 1	100,956	66,713
FX and other movements	(10,596)	(5,544)
Write-offs / Charge-offs of the year	(71,787)	(45,565)
Ending balance	(550,230)	(377,563)
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	52,867	45,269
Transfer from stage 1 to stage 3	3,145	2,599
Transfer from stage 2 to stage 3	23,678	30,052
Transfer from stage 3 to stage 2	(2,539)	(1,961)
Transfer from stage 3 to stage 1	(945)	(6,062)
Net remeasurement of loss allowance	20,107	9,625
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	7
Financial assets that have been derecognized	(122)	(861)
Unwind of discount	10,456	8,266
Write-offs / Charge-offs of the year	53,542	34,062
Ending balance	53,112	52,867
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		2
Ending balance
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		45,271
Ending balance
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(55,601)	(47,961)
Transfer from stage 1 to stage 3	(15,698)	(14,127)
Transfer from stage 2 to stage 3	(47,227)	(46,429)
Transfer from stage 3 to stage 2	4,530	4,213
Transfer from stage 3 to stage 1	1,795	9,506
Write-offs / Charge-offs of the year	(53,542)	(34,062)
Ending balance	(55,597)	(55,601)
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	368,352	237,034
Transfer from stage 1 to stage 3	9,950	3,573
Transfer from stage 2 to stage 3	8,681	6,981
Transfer from stage 3 to stage 2	(5,087)	(3,616)
Transfer from stage 3 to stage 1	(5,996)	(6,445)
Net remeasurement of loss allowance	96,786	241,806
New financial assets originated or purchased / Provision charged to profit or loss / New loan commitments and financial guarantees issued	35,444	10,406
Financial assets that have been derecognized	(8,081)	(47,021)
Unwind of discount	27,378	20,542
FX and other movements	(1,811)	158
Entity deconsolidation		2,307
Write-offs / Charge-offs of the year	121,010	98,622
Ending balance	404,606	368,352
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,249
Ending balance
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		238,283
Ending balance
Lifetime ECL | Credit-impaired | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	(963,860)	(701,786)
Transfer from stage 1 to stage 3	(252,784)	(302,428)
Transfer from stage 2 to stage 3	(91,776)	(152,167)
Transfer from stage 3 to stage 2	22,190	21,365
Transfer from stage 3 to stage 1	44,799	56,628
FX and other movements	(629)	(556)
Entity deconsolidation		(2,019)
Write-offs / Charge-offs of the year	(121,010)	(98,622)
Ending balance	(1,046,411)	(963,860)
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	66,327	70,611
Transfer from stage 1 to stage 3	19,176
Transfer from stage 2 to stage 3	754
Net remeasurement of loss allowance	28,041	(6,081)
FX and other movements	23
Write-offs / Charge-offs of the year	17,308
Ending balance	86,797	66,327
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		1,797
Ending balance
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		72,408
Ending balance
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	5,240,594
Ending balance	5,260,724	5,240,594
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	5,174,267
Ending balance	5,173,927	5,174,267
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	3,051,088
Ending balance	2,905,794	3,051,088
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	1,553,365
Ending balance	1,620,779	1,553,365
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	148,595
Ending balance	189,636	148,595
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	368,352
Ending balance	404,606	368,352
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	66,327
Ending balance	86,797	66,327
Lifetime ECL | Credit-impaired | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	46,280
Ending balance		46,280
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	46,280	71,708
Net remeasurement of loss allowance	(55)	18,158
Financial assets that have been derecognized	(45,602)	(49,421)
FX and other movements	$ (623)	16
Ending balance		46,280
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		5,819
Ending balance
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance		$ 77,527
Ending balance

RISK MANAGEMENT - Impact of the

RISK MANAGEMENT - Impact of the measurement of ECL (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Loan portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	$ 148,281	$ (6,400)
Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	105,545	42,723
Loans to consumers
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	10,422	(38,444)
Mortgages
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	29,265	(10,543)
Microcredit
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL		(4,750)
Loan Microcredit portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	488
Financial leasing
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	2,561	4,614
12-month ECL | Loan portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	71,209	(8,520)
12-month ECL | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	57,078	34,411
12-month ECL | Loans to consumers
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	9,044	(51,642)
12-month ECL | Mortgages
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	2,064	2,543
12-month ECL | Microcredit
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL		541
12-month ECL | Loan Microcredit portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	1,207
12-month ECL | Financial leasing
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	1,816	5,627
Lifetime ECL | Not credit-impaired | Loan portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	23,388	1,997
Lifetime ECL | Not credit-impaired | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	12,301	(8,050)
Lifetime ECL | Not credit-impaired | Loans to consumers
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	4,268	20,671
Lifetime ECL | Not credit-impaired | Mortgages
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	5,674	(4,263)
Lifetime ECL | Not credit-impaired | Microcredit
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL		(5,338)
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	(188)
Lifetime ECL | Not credit-impaired | Financial leasing
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	1,333	(1,023)
Lifetime ECL | Credit-impaired | Loan portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	53,684	123
Lifetime ECL | Credit-impaired | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	36,166	16,362
Lifetime ECL | Credit-impaired | Loans to consumers
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	(2,890)	(7,473)
Lifetime ECL | Credit-impaired | Mortgages
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	21,527	(8,823)
Lifetime ECL | Credit-impaired | Microcredit
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL		47
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	(531)
Lifetime ECL | Credit-impaired | Financial leasing
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	(588)	10
Debt securities | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	211	3
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	(1,709)	198
Debt securities | 12-month ECL | Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	211	3
Debt securities | 12-month ECL | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Impact of the measurement of ECL	$ (1,709)	$ 198

RISK MANAGEMENT - Loss allowa_2

RISK MANAGEMENT - Loss allowance related with CRDS (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Exposure amount	$ 280,166,274	$ 265,822,388
CRDS
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of exposure	100.00%
Exposure amount	$ 761,993

RISK MANAGEMENT - Litigation (D

RISK MANAGEMENT - Litigation (Details) $ in Millions	1 Months Ended
	Jan. 31, 2019COP ($)	Dec. 31, 2017COP ($)item	Aug. 06, 2019COP ($)
Arbitration Tribunal
Risk Management
Amount declared by arbitration tribunal			$ 211,273
Number of payments received by creditor bank | item		2
CRDS
Risk Management
Payments received by creditors bank	$ 1,420,000	$ 1,420,000
CRDS | Minimum
Risk Management
Liquidation value of construction contract	$ 1,630,000	$ 1,630,000

RISK MANAGEMENT - Changes in gr

RISK MANAGEMENT - Changes in gross carrying amount (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	$ 245,105,338
Financial assets at end of period	259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(8,611,594)	(5,875,018)
Financial assets at end of period	(8,557,039)	(8,611,594)
Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(8,196,187)	(5,618,481)
New financial assets originated or purchased	(982,209)	(1,322,065)
Financial assets that have been derecognized	(785,075)	(1,069,705)
Unwind of discount	(504,437)	(381,983)
Write-offs / Charge-offs of the year	4,716,947	3,148,990
Entity deconsolidation		(2,307)
FX and other movements	(29,379)	(75,712)
Financial assets at end of period	(8,185,797)	(8,196,187)
Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,163,009)
Financial assets at end of period
Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(6,781,490)
Financial assets at end of period
Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	176,881,841	166,372,717
Increase in loan portfolio and borrowing costs	125,945,694	105,306,987
Decrease in loan portfolio and borrowing costs	(117,510,435)	(97,228,541)
Increase-decrease in interest	616,892	44,897
Increase-decrease in other receivables associated with loans	17,169	21,807
Write-offs / Charge-offs of the year	(4,716,947)	(3,148,990)
Entity deconsolidation		(2,019)
FX and other movements	893,900	(5,510,945)
Financial assets at end of period	182,128,114	176,881,841
Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	19,358,216
Financial assets at end of period	21,862,835	19,358,216
Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,937,449)	(2,659,322)
New financial assets originated or purchased	(438,102)	(525,163)
Financial assets that have been derecognized	(407,549)	(370,151)
Unwind of discount	(370,719)	(268,874)
Write-offs / Charge-offs of the year	1,801,062	437,274
FX and other movements	2,993	(17,805)
Financial assets at end of period	(3,739,330)	(3,937,449)
Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(257,073)
Financial assets at end of period
Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(2,916,395)
Financial assets at end of period
Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	92,550,025	89,776,600
Increase in loan portfolio and borrowing costs	70,875,884	62,605,655
Decrease in loan portfolio and borrowing costs	(71,102,618)	(62,171,044)
Increase-decrease in interest	355,697	(150,274)
Increase-decrease in other receivables associated with loans	(1,398)	4,823
Write-offs / Charge-offs of the year	(1,801,062)	(437,274)
FX and other movements	430,191	2,921,539
Financial assets at end of period	91,306,719	92,550,025
Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,442,311)	(2,456,791)
New financial assets originated or purchased	(461,258)	(732,106)
Financial assets that have been derecognized	(349,555)	(600,920)
Unwind of discount	(89,544)	(80,174)
Write-offs / Charge-offs of the year	2,668,392	2,527,016
FX and other movements	(38,007)	(52,800)
Financial assets at end of period	(3,548,580)	(3,442,311)
Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(795,778)
Financial assets at end of period
Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(3,252,569)
Financial assets at end of period
Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	55,200,581	50,156,130
Increase in loan portfolio and borrowing costs	47,049,391	36,401,010
Decrease in loan portfolio and borrowing costs	(40,412,384)	(30,489,488)
Increase-decrease in interest	196,822	108,940
Increase-decrease in other receivables associated with loans	6,473	5,853
Write-offs / Charge-offs of the year	(2,668,392)	(2,527,016)
FX and other movements	215,438	1,545,152
Financial assets at end of period	59,587,929	55,200,581
Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(257,243)	(130,882)
New financial assets originated or purchased	(9,014)	(11,093)
Financial assets that have been derecognized	(10,657)	(19,259)
Unwind of discount	(6,340)	(4,548)
Write-offs / Charge-offs of the year	72,405	46,200
FX and other movements	5,513	(4,946)
Financial assets at end of period	(306,237)	(257,243)
Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(56,196)
Financial assets at end of period
Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(187,078)
Financial assets at end of period
Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	17,279,362	15,100,999
Increase in loan portfolio and borrowing costs	4,064,022	3,172,549
Decrease in loan portfolio and borrowing costs	(2,729,127)	(1,820,960)
Increase-decrease in interest	(12,949)	14,341
Increase-decrease in other receivables associated with loans	493	151
Write-offs / Charge-offs of the year	(72,405)	(46,200)
FX and other movements	131,993	858,482
Financial assets at end of period	18,661,389	17,279,362
Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(88,177)	(74,167)
New financial assets originated or purchased	(13,679)	(16,721)
Financial assets that have been derecognized	(2,736)	(3,858)
Unwind of discount	(10,456)	(7,988)
Write-offs / Charge-offs of the year	53,748	39,691
Financial assets at end of period	(89,825)	(88,177)
Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(11,118)
Financial assets at end of period
Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(85,285)
Financial assets at end of period
Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	425,697	409,688
Increase in loan portfolio and borrowing costs	340,211	328,081
Decrease in loan portfolio and borrowing costs	(312,492)	(285,485)
Increase-decrease in interest	10,652	13,104
Write-offs / Charge-offs of the year	(53,748)	(39,691)
Financial assets at end of period	410,320	425,697
Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(471,007)	(297,319)
New financial assets originated or purchased	(60,156)	(36,982)
Financial assets that have been derecognized	(14,578)	(75,517)
Unwind of discount	(27,378)	(20,399)
Write-offs / Charge-offs of the year	121,340	98,809
Entity deconsolidation		(2,307)
FX and other movements	122	(161)
Financial assets at end of period	(501,825)	(471,007)
Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(42,844)
Financial assets at end of period
Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(340,163)
Financial assets at end of period
Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	11,426,176	10,929,300
Increase in loan portfolio and borrowing costs	3,616,186	2,799,692
Decrease in loan portfolio and borrowing costs	(2,953,814)	(2,461,564)
Increase-decrease in interest	66,670	58,786
Increase-decrease in other receivables associated with loans	11,601	10,980
Write-offs / Charge-offs of the year	(121,340)	(98,809)
Entity deconsolidation		2,019
FX and other movements	116,278	185,772
Financial assets at end of period	12,161,757	11,426,176
Trade receivables / other accounts receivable
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	9,300,643
Financial assets at end of period	11,702,301	9,300,643
Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(256,891)
Financial assets at end of period	(286,463)	(256,891)
Trade receivables / other accounts receivable | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(18,907)
Financial assets at end of period
Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	9,557,534
Financial assets at end of period	11,988,764	9,557,534
Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(97,588)	(89,431)
Write-offs / Charge-offs of the year	22,050	16,669
FX and other movements	(50)	2
Approach change	(2,595)
Financial assets at end of period	(113,156)	(97,588)
Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(9,569)
Financial assets at end of period
Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(99,000)
Financial assets at end of period
Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(159,303)
Financial assets at end of period	(173,307)	(159,303)
Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(59,428)	(29,675)
New financial assets originated or purchased	(24,115)	(4,572)
FX and other movements	(254)	(170)
Financial assets at end of period	(49,962)	(59,428)
Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(16,217)
Financial assets at end of period
Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(45,892)
Financial assets at end of period
Financial assets at amortised cost, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	215,324,860
Financial assets at end of period	224,581,946	215,324,860
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(8,453,149)
Financial assets at end of period	(8,472,997)	(8,453,149)
Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(8,196,187)
Financial assets at end of period	(8,185,797)	(8,196,187)
Financial assets at amortised cost, category [member] | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	176,881,841
Financial assets at end of period	182,128,114	176,881,841
Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,937,449)
Financial assets at end of period	(3,739,330)	(3,937,449)
Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,442,311)
Financial assets at end of period	(3,548,580)	(3,442,311)
Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(257,243)
Financial assets at end of period	(306,237)	(257,243)
Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(471,007)
Financial assets at end of period	(501,825)	(471,007)
Financial assets at amortised cost, category [member] | Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(256,891)
Financial assets at end of period	(286,463)	(256,891)
Financial assets at amortised cost, category [member] | Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	7,069,120
Financial assets at end of period	9,282,734	7,069,120
Financial assets at amortised cost, category [member] | Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(159,303)
Financial assets at end of period	(173,307)	(159,303)
Financial assets at amortised cost, category [member] | Other accounts receivable, simplified approach | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	3,387,842
Financial assets at end of period	3,486,252	3,387,842
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	18,935,757
Financial assets at end of period	21,608,992	18,935,757
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(99,017)
Financial assets at end of period	(34,080)	(99,017)
Debt securities | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	25,702,607
Financial assets at end of period	29,346,069	25,702,607
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(71)
New financial assets originated or purchased	(1,353)	(59)
Financial assets that have been derecognized	(64)	(667)
FX and other movements	8	(97)
Financial assets at end of period	(737)	(71)
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(672)
Financial assets at end of period
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(672)
Financial assets at end of period
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(99,017)	(71,708)
New financial assets originated or purchased	(34,575)	(12,468)
Financial assets that have been derecognized	(76,771)	(60,046)
FX and other movements	11,426	(2,920)
Financial assets at end of period	(34,080)	(99,017)
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(56,198)
Financial assets at end of period
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(127,906)
Financial assets at end of period
Credit-impaired | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	1,225,001
Financial assets at end of period	1,659,725	1,225,001
12-month ECL | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,906,117)
Financial assets at end of period	(1,946,817)	(1,906,117)
12-month ECL | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,824,874)	(1,227,363)
Transfer from stage 1 to stage 2	231,472	255,031
Transfer from stage 1 to stage 3	132,800	214,542
Transfer from stage 2 to stage 1	(323,445)	(314,668)
Transfer from stage 3 to stage 1	(114,968)	(183,733)
New financial assets originated or purchased	(659,037)	(1,011,984)
Financial assets that have been derecognized	(366,590)	(568,424)
Unwind of discount	(280)	(32,674)
Write-offs / Charge-offs of the year	38,750	312,350
FX and other movements	(52,724)	(4,703)
Financial assets at end of period	(1,853,138)	(1,824,874)
12-month ECL | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(490,117)
Financial assets at end of period
12-month ECL | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,717,480)
Financial assets at end of period
12-month ECL | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	158,886,792	150,082,716
Transfer from stage 1 to stage 2	11,790,121	11,834,692
Transfer from stage 1 to stage 3	1,632,972	2,023,042
Transfer from stage 3 to stage 2	(6,281,477)	(7,343,231)
Transfer from stage 3 to stage 1	(582,523)	(621,006)
Increase in loan portfolio and borrowing costs	122,342,873	101,799,568
Decrease in loan portfolio and borrowing costs	(111,122,212)	(91,600,857)
Increase-decrease in interest	75,349	(411,754)
Increase-decrease in other receivables associated with loans	7,919	11,867
Write-offs / Charge-offs of the year	(38,750)	(312,350)
FX and other movements	613,810	(5,211,099)
Financial assets at end of period	164,206,688	158,886,792
12-month ECL | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(695,728)	(492,561)
Transfer from stage 1 to stage 2	35,269	26,155
Transfer from stage 1 to stage 3	22,792	57,241
Transfer from stage 2 to stage 1	(38,767)	(65,954)
Transfer from stage 3 to stage 1	(17,627)	(30,590)
New financial assets originated or purchased	(315,737)	(419,719)
Financial assets that have been derecognized	(217,319)	(221,935)
Unwind of discount	(280)	(31,974)
Write-offs / Charge-offs of the year	2,224	16,636
FX and other movements	(14,943)	(4,707)
Financial assets at end of period	(642,839)	(695,728)
12-month ECL | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(122,996)
Financial assets at end of period
12-month ECL | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(615,557)
Financial assets at end of period
12-month ECL | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	84,218,469	82,949,511
Transfer from stage 1 to stage 2	(3,007,313)	(2,402,189)
Transfer from stage 1 to stage 3	(971,916)	(1,239,079)
Transfer from stage 3 to stage 2	924,096	1,267,680
Transfer from stage 3 to stage 1	212,841	193,843
Increase in loan portfolio and borrowing costs	70,008,205	61,745,704
Decrease in loan portfolio and borrowing costs	(68,610,454)	(60,678,433)
Increase-decrease in interest	(18,016)	(419,897)
Increase-decrease in other receivables associated with loans	(2,697)	3,025
Write-offs / Charge-offs of the year	(2,224)	(16,636)
FX and other movements	324,141	2,814,940
Financial assets at end of period	83,075,132	84,218,469
12-month ECL | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(998,390)	(656,042)
Transfer from stage 1 to stage 2	177,237	209,235
Transfer from stage 1 to stage 3	96,220	149,571
Transfer from stage 2 to stage 1	(248,331)	(209,168)
Transfer from stage 3 to stage 1	(86,563)	(137,887)
New financial assets originated or purchased	(299,809)	(543,690)
Financial assets that have been derecognized	(141,025)	(315,442)
Unwind of discount		(474)
Write-offs / Charge-offs of the year	35,743	289,525
FX and other movements	(35,616)	7
Financial assets at end of period	(1,076,150)	(998,390)
12-month ECL | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(336,656)
Financial assets at end of period
12-month ECL | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(992,698)
Financial assets at end of period
12-month ECL | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	48,625,173	43,867,292
Transfer from stage 1 to stage 2	(6,677,240)	(7,335,328)
Transfer from stage 1 to stage 3	(378,855)	(457,632)
Transfer from stage 2 to stage 1	(3,963,436)	(4,071,520)
Transfer from stage 3 to stage 1	222,132	294,316
Increase in loan portfolio and borrowing costs	44,592,760	33,889,281
Decrease in loan portfolio and borrowing costs	(37,145,214)	(26,900,608)
Increase-decrease in interest	78,352	12,566
Increase-decrease in other receivables associated with loans	2,870	2,332
Write-offs / Charge-offs of the year	(35,743)	(289,525)
FX and other movements	73,657	1,470,959
Financial assets at end of period	53,321,328	48,625,173
12-month ECL | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(35,187)	(14,501)
Transfer from stage 1 to stage 2	4,605	7,711
Transfer from stage 1 to stage 3	693	1,558
Transfer from stage 2 to stage 1	(21,080)	(20,072)
Transfer from stage 3 to stage 1	(3,837)	(2,749)
New financial assets originated or purchased	(8,995)	(8,999)
Financial assets that have been derecognized	(709)	(4,131)
Unwind of discount		(110)
Write-offs / Charge-offs of the year	482	561
FX and other movements	(805)
Financial assets at end of period	(43,492)	(35,187)
12-month ECL | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(6,227)
Financial assets at end of period		(6,227)
12-month ECL | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(20,728)
Financial assets at end of period
12-month ECL | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	15,566,058	13,260,166
Transfer from stage 1 to stage 2	(1,571,950)	(1,662,941)
Transfer from stage 1 to stage 3	(13,719)	(9,776)
Transfer from stage 2 to stage 1	1,157,647	1,630,238
Transfer from stage 3 to stage 1	100,956	66,713
Increase in loan portfolio and borrowing costs	3,931,507	3,136,074
Decrease in loan portfolio and borrowing costs	(2,473,480)	(1,596,155)
Increase-decrease in interest	11,151	1,142
Increase-decrease in other receivables associated with loans	78	19
Write-offs / Charge-offs of the year	(482)	(561)
FX and other movements	104,234	741,139
Financial assets at end of period	16,812,000	15,566,058
12-month ECL | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(23,348)	(21,421)
Transfer from stage 1 to stage 2	9,148	8,298
Transfer from stage 1 to stage 3	3,145	2,599
Transfer from stage 2 to stage 1	(5,854)	(6,305)
Transfer from stage 3 to stage 1	(945)	(6,062)
New financial assets originated or purchased	(13,021)	(16,095)
Financial assets that have been derecognized	(2,348)	(2,397)
Unwind of discount		(103)
Write-offs / Charge-offs of the year	123	5,584
Financial assets at end of period	(24,794)	(23,348)
12-month ECL | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(525)
Financial assets at end of period
12-month ECL | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(21,946)
Financial assets at end of period
12-month ECL | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	344,722	333,346
Transfer from stage 1 to stage 2	(60,329)	(57,561)
Transfer from stage 1 to stage 3	(15,698)	(14,127)
Transfer from stage 2 to stage 1	13,553	14,370
Transfer from stage 3 to stage 1	1,795	9,506
Increase in loan portfolio and borrowing costs	301,822	302,414
Decrease in loan portfolio and borrowing costs	(258,304)	(240,686)
Increase-decrease in interest	2,484	3,044
Write-offs / Charge-offs of the year	(123)	(5,584)
Financial assets at end of period	329,922	344,722
12-month ECL | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(72,221)	(42,838)
Transfer from stage 1 to stage 2	5,213	3,632
Transfer from stage 1 to stage 3	9,950	3,573
Transfer from stage 2 to stage 1	(9,413)	(13,169)
Transfer from stage 3 to stage 1	(5,996)	(6,445)
New financial assets originated or purchased	(21,475)	(23,481)
Financial assets that have been derecognized	(5,189)	(24,519)
Unwind of discount		(13)
Write-offs / Charge-offs of the year	178	44
FX and other movements	(1,360)	(3)
Financial assets at end of period	(65,863)	(72,221)
12-month ECL | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(23,713)
Financial assets at end of period
12-month ECL | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(66,551)
Financial assets at end of period
12-month ECL | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	10,132,370	9,672,401
Transfer from stage 1 to stage 2	(473,289)	(376,673)
Transfer from stage 1 to stage 3	(252,784)	(302,428)
Transfer from stage 2 to stage 1	222,745	359,423
Transfer from stage 3 to stage 1	44,799	56,628
Increase in loan portfolio and borrowing costs	3,508,579	2,726,095
Decrease in loan portfolio and borrowing costs	(2,634,760)	(2,184,975)
Increase-decrease in interest	1,378	(8,609)
Increase-decrease in other receivables associated with loans	7,668	6,491
Write-offs / Charge-offs of the year	(178)	(44)
FX and other movements	111,778	184,061
Financial assets at end of period	10,668,306	10,132,370
12-month ECL | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(19,700)	(12,911)
Transfer from stage 1 to stage 3	19,176
Write-offs / Charge-offs of the year	4,208	16,669
FX and other movements	(21)	2
Approach change	8,996
Financial assets at end of period	(13,353)	(19,700)
12-month ECL | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(4,021)
Financial assets at end of period
12-month ECL | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(16,932)
Financial assets at end of period
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(40,715)	(23,922)
Transfer from stage 1 to stage 2	529	2,350
Transfer from stage 1 to stage 3	172	2,167
Transfer from stage 2 to stage 1	(8,116)	(1,816)
Transfer from stage 3 to stage 1	(3,582)	(26)
New financial assets originated or purchased	(22,613)	(3,186)
FX and other movements	(253)	(169)
Financial assets at end of period	(45,509)	(40,715)
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(13,381)
Financial assets at end of period
12-month ECL | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(37,303)
Financial assets at end of period
12-month ECL | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,844,645)
Financial assets at end of period	(1,867,228)	(1,844,645)
12-month ECL | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,824,874)
Financial assets at end of period	(1,853,138)	(1,824,874)
12-month ECL | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(695,728)
Financial assets at end of period	(642,839)	(695,728)
12-month ECL | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(998,390)
Financial assets at end of period	(1,076,150)	(998,390)
12-month ECL | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(35,187)
Financial assets at end of period	(43,492)	(35,187)
12-month ECL | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(72,221)
Financial assets at end of period	(65,863)	(72,221)
12-month ECL | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(19,700)
Financial assets at end of period	(13,353)	(19,700)
12-month ECL | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(20,757)
Financial assets at end of period	(34,080)	(20,757)
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(71)
New financial assets originated or purchased	(1,353)	(59)
Financial assets that have been derecognized	(64)	(667)
FX and other movements	8	(97)
Financial assets at end of period	(737)	(71)
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(672)
Financial assets at end of period
12-month ECL | Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(672)
Financial assets at end of period
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(20,757)
Transfer from stage 1 to stage 2		272
New financial assets originated or purchased	(34,575)	(12,018)
Financial assets that have been derecognized	(3,729)	(7,937)
FX and other movements	9,827	(644)
Financial assets at end of period	(34,080)	(20,757)
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(18,665)
Financial assets at end of period
12-month ECL | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(18,665)
Financial assets at end of period
Lifetime ECL | Commercial loans
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	18,133,215
Financial assets at end of period	20,203,110	18,133,215
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(159,303)	(137,431)
Recovery for partial payments from the clients	(11,129)	(12,373)
Write-offs / Charge-offs of the year	13,097	47,309
Entity deconsolidation	56	(6,731)
Approach change	(2,595)
Exchange gains in foreign currency	(185)	(255)
Financial assets at end of period	(173,307)	(159,303)
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(9,338)
Financial assets at end of period
Lifetime ECL | Other accounts receivable, simplified approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(146,769)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,254,945)
Financial assets at end of period	(1,174,683)	(1,254,945)
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,197,046)	(583,584)
Transfer from stage 1 to stage 2	(231,472)	(255,031)
Transfer from stage 2 to stage 3	567,849	631,932
Transfer from stage 2 to stage 1	323,445	314,668
Transfer from stage 3 to stage 2	(104,502)	(107,331)
New financial assets originated or purchased	(119,690)	(156,320)
Financial assets that have been derecognized	(241,128)	(177,729)
Unwind of discount	(2,155)	3,809
Write-offs / Charge-offs of the year	44,961	120,592
FX and other movements	(49,148)
Financial assets at end of period	(1,158,732)	(1,197,046)
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(596,737)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,180,321)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	7,721,137	8,263,660
Transfer from stage 1 to stage 2	(11,790,121)	(11,834,692)
Transfer from stage 2 to stage 3	4,150,773	4,493,810
Transfer from stage 2 to stage 1	(743,373)	(761,405)
Transfer from stage 3 to stage 2	6,281,477	7,343,231
Increase in loan portfolio and borrowing costs	1,060,008	1,668,101
Decrease in loan portfolio and borrowing costs	(2,838,645)	(3,125,167)
Increase-decrease in interest	(20,355)	20,034
Increase-decrease in other receivables associated with loans	(534)	2,289
Write-offs / Charge-offs of the year	(44,961)	(120,592)
FX and other movements	78,913	(253,756)
Financial assets at end of period	8,056,807	7,721,137
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(190,633)	(91,930)
Transfer from stage 1 to stage 2	(35,269)	(26,155)
Transfer from stage 2 to stage 3	90,108	141,368
Transfer from stage 2 to stage 1	38,767	65,954
Transfer from stage 3 to stage 2	(16,665)	(17,836)
New financial assets originated or purchased	(22,634)	(37,317)
Financial assets that have been derecognized	(39,985)	(24,707)
Unwind of discount	(2,136)	2,615
Write-offs / Charge-offs of the year	785	2,020
FX and other movements	(8,443)
Financial assets at end of period	(190,697)	(190,633)
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(100,438)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(192,368)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	1,663,612	2,104,840
Transfer from stage 1 to stage 2	3,007,313	2,402,189
Transfer from stage 2 to stage 3	(909,907)	(1,347,289)
Transfer from stage 2 to stage 1	148,025	158,589
Transfer from stage 3 to stage 2	(924,096)	(1,267,680)
Increase in loan portfolio and borrowing costs	(156,035)	376,146
Decrease in loan portfolio and borrowing costs	(440,971)	(798,958)
Increase-decrease in interest	(9,680)	(7,241)
Increase-decrease in other receivables associated with loans	(699)	733
Write-offs / Charge-offs of the year	(785)	(2,020)
FX and other movements	15,482	44,303
Financial assets at end of period	2,392,259	1,663,612
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(890,556)	(446,698)
Transfer from stage 1 to stage 2	(177,237)	(209,235)
Transfer from stage 2 to stage 3	423,340	432,509
Transfer from stage 2 to stage 1	248,331	209,168
Transfer from stage 3 to stage 2	(73,246)	(77,046)
New financial assets originated or purchased	(92,985)	(113,235)
Financial assets that have been derecognized	(192,886)	(139,703)
Unwind of discount	(19)	514
Write-offs / Charge-offs of the year	43,805	118,310
FX and other movements	(34,874)
Financial assets at end of period	(851,651)	(890,556)
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(426,136)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(872,834)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	4,366,464	3,997,655
Transfer from stage 1 to stage 2	6,677,240	7,335,328
Transfer from stage 2 to stage 3	(2,662,543)	(2,585,329)
Transfer from stage 2 to stage 1	3,963,436	4,071,520
Transfer from stage 3 to stage 2	(472,001)	(483,063)
Increase in loan portfolio and borrowing costs	1,068,552	1,237,315
Decrease in loan portfolio and borrowing costs	(2,058,852)	(2,021,809)
Increase-decrease in interest	(4,327)	12,728
Increase-decrease in other receivables associated with loans	(143)	844
Write-offs / Charge-offs of the year	(43,805)	(118,310)
FX and other movements	42,397	96,499
Financial assets at end of period	3,893,548	4,366,464
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(73,461)	(20,032)
Transfer from stage 1 to stage 2	(4,605)	(7,711)
Transfer from stage 2 to stage 3	22,042	21,022
Transfer from stage 2 to stage 1	21,080	20,072
Transfer from stage 3 to stage 2	(6,965)	(6,872)
New financial assets originated or purchased	(183)	(2,047)
Financial assets that have been derecognized	(6,683)	(8,742)
Unwind of discount		143
Write-offs / Charge-offs of the year	136	74
FX and other movements	(5,502)
Financial assets at end of period	(73,109)	(73,461)
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(41,690)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(61,722)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	1,335,741	1,577,671
Transfer from stage 1 to stage 2	1,571,950	1,662,941
Transfer from stage 2 to stage 3	(439,320)	(362,596)
Transfer from stage 2 to stage 1	(1,157,647)	(1,630,238)
Transfer from stage 3 to stage 2	96,627	94,175
Increase in loan portfolio and borrowing costs	74,769	32,904
Decrease in loan portfolio and borrowing costs	(192,589)	(158,726)
Increase-decrease in interest	(7,594)	7,857
Increase-decrease in other receivables associated with loans	195	28
Write-offs / Charge-offs of the year	(136)	(74)
FX and other movements	17,163	111,799
Financial assets at end of period	1,299,159	1,335,741
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(11,962)	(7,477)
Transfer from stage 1 to stage 2	(9,148)	(8,298)
Transfer from stage 2 to stage 3	23,678	30,052
Transfer from stage 2 to stage 1	5,854	6,305
Transfer from stage 3 to stage 2	(2,539)	(1,961)
New financial assets originated or purchased	(651)	(626)
Financial assets that have been derecognized	(266)	(600)
Unwind of discount		381
Write-offs / Charge-offs of the year	83	45
Financial assets at end of period	(11,919)	(11,962)
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(10,591)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(18,068)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	25,374	28,381
Transfer from stage 1 to stage 2	60,329	57,561
Transfer from stage 2 to stage 3	(47,227)	(46,429)
Transfer from stage 2 to stage 1	(13,553)	(14,370)
Transfer from stage 3 to stage 2	4,530	4,213
Increase in loan portfolio and borrowing costs	2,239	1,938
Decrease in loan portfolio and borrowing costs	(7,537)	(6,667)
Increase-decrease in interest	729	792
Write-offs / Charge-offs of the year	(83)	(45)
Financial assets at end of period	24,801	25,374
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(30,434)	(17,447)
Transfer from stage 1 to stage 2	(5,213)	(3,632)
Transfer from stage 2 to stage 3	8,681	6,981
Transfer from stage 2 to stage 1	9,413	13,169
Transfer from stage 3 to stage 2	(5,087)	(3,616)
New financial assets originated or purchased	(3,237)	(3,095)
Financial assets that have been derecognized	(1,308)	(3,977)
Unwind of discount		156
Write-offs / Charge-offs of the year	152	143
FX and other movements	(329)
Financial assets at end of period	(31,356)	(30,434)
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(17,882)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(35,329)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	329,946	555,113
Transfer from stage 1 to stage 2	473,289	376,673
Transfer from stage 2 to stage 3	(91,776)	(152,167)
Transfer from stage 2 to stage 1	(222,745)	(359,423)
Transfer from stage 3 to stage 2	22,190	21,365
Increase in loan portfolio and borrowing costs	70,483	19,798
Decrease in loan portfolio and borrowing costs	(138,696)	(139,007)
Increase-decrease in interest	517	5,898
Increase-decrease in other receivables associated with loans	113	684
Write-offs / Charge-offs of the year	(152)	(143)
FX and other movements	3,871	1,155
Financial assets at end of period	447,040	329,946
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(11,561)	(5,909)
Transfer from stage 2 to stage 3	754
Write-offs / Charge-offs of the year	534
FX and other movements	(6)
Approach change	(1,421)
Financial assets at end of period	(13,006)	(11,561)
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(3,751)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(9,660)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(14,358)	(1,719)
Transfer from stage 1 to stage 2	(529)	(2,350)
Transfer from stage 2 to stage 3	173	156
Transfer from stage 2 to stage 1	8,116	1,816
Transfer from stage 3 to stage 2		(13)
New financial assets originated or purchased	(875)	1,909
FX and other movements		(1)
Financial assets at end of period	(2,945)	(14,358)
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(3,085)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(4,804)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,208,607)
Financial assets at end of period	(1,171,738)	(1,208,607)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,197,046)
Financial assets at end of period	(1,158,732)	(1,197,046)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(190,633)
Financial assets at end of period	(190,697)	(190,633)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(890,556)
Financial assets at end of period	(851,651)	(890,556)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(73,461)
Financial assets at end of period	(73,109)	(73,461)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(30,434)
Financial assets at end of period	(31,356)	(30,434)
Lifetime ECL | Not credit-impaired | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(11,561)
Financial assets at end of period	(13,006)	(11,561)
Lifetime ECL | Not credit-impaired | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(31,980)
Financial assets at end of period		(31,980)
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(31,980)
Transfer from stage 1 to stage 2		(272)
New financial assets originated or purchased		(450)
Financial assets that have been derecognized	(27,440)	(2,688)
FX and other movements	976	(2,260)
Financial assets at end of period		(31,980)
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(31,714)
Financial assets at end of period
Lifetime ECL | Not credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(31,714)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(5,291,229)
Financial assets at end of period	(5,262,232)	(5,291,229)
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(5,174,267)	(3,807,534)
Transfer from stage 1 to stage 3	(132,800)	(214,542)
Transfer from stage 2 to stage 3	(567,849)	(631,932)
Transfer from stage 3 to stage 2	104,502	107,331
Transfer from stage 3 to stage 1	114,968	183,733
New financial assets originated or purchased	(203,482)	(153,761)
Financial assets that have been derecognized	(177,357)	(323,552)
Unwind of discount	(502,002)	(353,118)
Write-offs / Charge-offs of the year	4,633,236	2,716,048
Entity deconsolidation		(2,307)
FX and other movements	72,493	(71,009)
Financial assets at end of period	(5,173,927)	(5,174,267)
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(76,155)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(3,883,689)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	10,273,912	8,026,341
Transfer from stage 1 to stage 3	(1,632,972)	(2,023,042)
Transfer from stage 2 to stage 3	(4,150,773)	(4,493,810)
Transfer from stage 2 to stage 1	743,373	761,405
Transfer from stage 3 to stage 1	582,523	621,006
Increase in loan portfolio and borrowing costs	2,542,813	1,839,318
Decrease in loan portfolio and borrowing costs	(3,549,578)	(2,502,517)
Increase-decrease in interest	561,898	436,617
Increase-decrease in other receivables associated with loans	9,784	7,651
Write-offs / Charge-offs of the year	(4,633,236)	(2,716,048)
Entity deconsolidation		(2,019)
FX and other movements	201,177	(46,090)
Financial assets at end of period	9,864,619	10,273,912
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,051,088)	(2,074,831)
Transfer from stage 1 to stage 3	(22,792)	(57,241)
Transfer from stage 2 to stage 3	(90,108)	(141,368)
Transfer from stage 3 to stage 2	16,665	17,836
Transfer from stage 3 to stage 1	17,627	30,590
New financial assets originated or purchased	(99,731)	(68,127)
Financial assets that have been derecognized	(150,245)	(123,509)
Unwind of discount	(368,303)	(239,515)
Write-offs / Charge-offs of the year	1,798,053	418,618
FX and other movements	26,379	(13,098)
Financial assets at end of period	(2,905,794)	(3,051,088)
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(33,639)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Commercial loans | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(2,108,470)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Commercial loans | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	6,667,944	4,722,249
Transfer from stage 1 to stage 3	971,916	1,239,079
Transfer from stage 2 to stage 3	909,907	1,347,289
Transfer from stage 2 to stage 1	(148,025)	(158,589)
Transfer from stage 3 to stage 1	(212,841)	(193,843)
Increase in loan portfolio and borrowing costs	1,023,714	483,805
Decrease in loan portfolio and borrowing costs	(2,051,193)	(693,653)
Increase-decrease in interest	383,393	276,864
Increase-decrease in other receivables associated with loans	1,998	1,065
Write-offs / Charge-offs of the year	(1,798,053)	(418,618)
FX and other movements	90,568	62,296
Financial assets at end of period	5,839,328	6,667,944
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,553,365)	(1,354,051)
Transfer from stage 1 to stage 3	(96,220)	(149,571)
Transfer from stage 2 to stage 3	(423,340)	(432,509)
Transfer from stage 3 to stage 2	73,246	77,046
Transfer from stage 3 to stage 1	86,563	137,887
New financial assets originated or purchased	(68,464)	(75,181)
Financial assets that have been derecognized	(15,644)	(145,775)
Unwind of discount	(89,525)	(80,214)
Write-offs / Charge-offs of the year	2,588,844	2,119,181
FX and other movements	32,483	(52,807)
Financial assets at end of period	(1,620,779)	(1,553,365)
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(32,986)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loans to consumers | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,387,037)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loans to consumers | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	2,208,944	2,291,183
Transfer from stage 1 to stage 3	378,855	457,632
Transfer from stage 2 to stage 3	2,662,543	2,585,329
Transfer from stage 3 to stage 2	472,001	483,063
Transfer from stage 3 to stage 1	(222,132)	(294,316)
Increase in loan portfolio and borrowing costs	1,388,079	1,274,414
Decrease in loan portfolio and borrowing costs	(1,208,318)	(1,567,071)
Increase-decrease in interest	122,797	83,646
Increase-decrease in other receivables associated with loans	3,746	2,677
Write-offs / Charge-offs of the year	(2,588,844)	(2,119,181)
FX and other movements	99,384	(22,306)
Financial assets at end of period	2,373,053	2,208,944
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(148,595)	(96,349)
Transfer from stage 1 to stage 3	(693)	(1,558)
Transfer from stage 2 to stage 3	(22,042)	(21,022)
Transfer from stage 3 to stage 2	6,965	6,872
Transfer from stage 3 to stage 1	3,837	2,749
New financial assets originated or purchased	164	(47)
Financial assets that have been derecognized	(3,265)	(6,386)
Unwind of discount	(6,340)	(4,581)
Write-offs / Charge-offs of the year	71,787	45,565
FX and other movements	11,820	(4,946)
Financial assets at end of period	(189,636)	(148,595)
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(8,279)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Mortgages | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(104,628)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Mortgages | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	377,563	263,162
Transfer from stage 1 to stage 3	13,719	9,776
Transfer from stage 2 to stage 3	439,320	362,596
Transfer from stage 3 to stage 2	(96,627)	(94,175)
Transfer from stage 3 to stage 1	(100,956)	(66,713)
Increase in loan portfolio and borrowing costs	57,746	3,571
Decrease in loan portfolio and borrowing costs	(63,058)	(66,079)
Increase-decrease in interest	(16,506)	5,342
Increase-decrease in other receivables associated with loans	220	104
Write-offs / Charge-offs of the year	(71,787)	(45,565)
FX and other movements	10,596	5,544
Financial assets at end of period	550,230	377,563
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(52,867)	(45,269)
Transfer from stage 1 to stage 3	(3,145)	(2,599)
Transfer from stage 2 to stage 3	(23,678)	(30,052)
Transfer from stage 3 to stage 2	2,539	1,961
Transfer from stage 3 to stage 1	945	6,062
New financial assets originated or purchased	(7)
Financial assets that have been derecognized	(122)	(861)
Unwind of discount	(10,456)	(8,266)
Write-offs / Charge-offs of the year	53,542	34,062
Financial assets at end of period	(53,112)	(52,867)
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(2)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(45,271)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan Microcredit portfolio | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	55,601	47,961
Transfer from stage 1 to stage 3	15,698	14,127
Transfer from stage 2 to stage 3	47,227	46,429
Transfer from stage 3 to stage 2	(4,530)	(4,213)
Transfer from stage 3 to stage 1	(1,795)	(9,506)
Increase in loan portfolio and borrowing costs	36,150	23,729
Decrease in loan portfolio and borrowing costs	(46,651)	(38,132)
Increase-decrease in interest	7,439	9,268
Write-offs / Charge-offs of the year	(53,542)	(34,062)
Financial assets at end of period	55,597	55,601
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(368,352)	(237,034)
Transfer from stage 1 to stage 3	(9,950)	(3,573)
Transfer from stage 2 to stage 3	(8,681)	(6,981)
Transfer from stage 3 to stage 2	5,087	3,616
Transfer from stage 3 to stage 1	5,996	6,445
New financial assets originated or purchased	(35,444)	(10,406)
Financial assets that have been derecognized	(8,081)	(47,021)
Unwind of discount	(27,378)	(20,542)
Write-offs / Charge-offs of the year	121,010	98,622
Entity deconsolidation		(2,307)
FX and other movements	1,811	(158)
Financial assets at end of period	(404,606)	(368,352)
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,249)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Financial leasing | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(238,283)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Financial leasing | Gross carrying amount
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	963,860	701,786
Transfer from stage 1 to stage 3	252,784	302,428
Transfer from stage 2 to stage 3	91,776	152,167
Transfer from stage 3 to stage 2	(22,190)	(21,365)
Transfer from stage 3 to stage 1	(44,799)	(56,628)
Increase in loan portfolio and borrowing costs	37,124	53,799
Decrease in loan portfolio and borrowing costs	(180,358)	(137,582)
Increase-decrease in interest	64,775	61,497
Increase-decrease in other receivables associated with loans	3,820	3,805
Write-offs / Charge-offs of the year	(121,010)	(98,622)
Entity deconsolidation		2,019
FX and other movements	629	556
Financial assets at end of period	1,046,411	963,860
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(66,327)	(70,611)
Transfer from stage 1 to stage 3	(19,176)
Transfer from stage 2 to stage 3	(754)
Write-offs / Charge-offs of the year	17,308
FX and other movements	(23)
Approach change	(10,170)
Financial assets at end of period	(86,797)	(66,327)
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(1,797)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Other accounts receivable, general approach | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(72,408)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(4,355)	(4,034)
Transfer from stage 1 to stage 3	(172)	(2,167)
Transfer from stage 2 to stage 3	(173)	(156)
Transfer from stage 3 to stage 2		13
Transfer from stage 3 to stage 1	3,582	26
New financial assets originated or purchased	(627)	(3,295)
FX and other movements	(1)
Financial assets at end of period	(1,508)	(4,355)
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		249
Financial assets at end of period
Lifetime ECL | Credit-impaired | Loan commitments and financial guarantee contracts | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(3,785)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(5,240,594)
Financial assets at end of period	(5,260,724)	(5,240,594)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Loan portfolio | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(5,174,267)
Financial assets at end of period	(5,173,927)	(5,174,267)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Commercial loans | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(3,051,088)
Financial assets at end of period	(2,905,794)	(3,051,088)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Loans to consumers | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(1,553,365)
Financial assets at end of period	(1,620,779)	(1,553,365)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Mortgages | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(148,595)
Financial assets at end of period	(189,636)	(148,595)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Financial leasing | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(368,352)
Financial assets at end of period	(404,606)	(368,352)
Lifetime ECL | Credit-impaired | Financial assets at amortised cost, category [member] | Other accounts receivable, general approach | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(66,327)
Financial assets at end of period	(86,797)	(66,327)
Lifetime ECL | Credit-impaired | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(46,280)
Financial assets at end of period		(46,280)
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period	(46,280)	(71,708)
Financial assets that have been derecognized	(45,602)	(49,421)
FX and other movements	$ 623	(16)
Financial assets at end of period		(46,280)
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | Increase (decrease) due to application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		(5,819)
Financial assets at end of period
Lifetime ECL | Credit-impaired | Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment | After application application of IFRS 9
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets at beginning of period		$ (77,527)
Financial assets at end of period

RISK MANAGEMENT - Credit Port_2

RISK MANAGEMENT - Credit Portfolio Assessed Collectively and Individually (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of credit risk exposure [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Commercial loans
Disclosure of credit risk exposure [line items]
Financial assets	21,862,835	19,358,216
Accumulated impairment
Disclosure of credit risk exposure [line items]
Financial assets	(8,557,039)	(8,611,594)	$ (5,875,018)
Accumulated impairment | Loan portfolio
Disclosure of credit risk exposure [line items]
Financial assets	(8,185,797)	(8,196,187)	(5,618,481)
Accumulated impairment | Commercial loans
Disclosure of credit risk exposure [line items]
Financial assets	(3,739,330)	(3,937,449)	(2,659,322)
Accumulated impairment | Loans to consumers
Disclosure of credit risk exposure [line items]
Financial assets	(3,548,580)	(3,442,311)	(2,456,791)
Accumulated impairment | Mortgages
Disclosure of credit risk exposure [line items]
Financial assets	(306,237)	(257,243)	(130,882)
Accumulated impairment | Financial leasing
Disclosure of credit risk exposure [line items]
Financial assets	$ (501,825)	$ (471,007)	$ (297,319)

RISK MANAGEMENT - Concentration

RISK MANAGEMENT - Concentrations of credit risk - Concentration by sector (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 182,128,114	$ 176,881,841
Loan portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 182,128,114	$ 176,881,841
Loans and Receivables, Percentage	100.00%	100.00%
Loan portfolio | Consumer services
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 84,790,144	$ 78,976,887
Loans and Receivables, Percentage	47.00%	45.00%
Loan portfolio | Commercial services
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 37,925,996	$ 41,160,951
Loans and Receivables, Percentage	21.00%	23.00%
Loan portfolio | IFRS Construction [Member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 11,550,042	$ 11,093,895
Loans and Receivables, Percentage	6.00%	6.00%
Loan portfolio | Food, beverage and tobacco
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 8,941,375	$ 8,128,767
Loans and Receivables, Percentage	5.00%	5.00%
Loan portfolio | Transportation and communications
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 6,504,746	$ 7,117,087
Loans and Receivables, Percentage	4.00%	4.00%
Loan portfolio | Public services
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 5,470,918	$ 6,123,390
Loans and Receivables, Percentage	3.00%	4.00%
Loan portfolio | Chemical production
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 5,847,362	$ 5,614,918
Loans and Receivables, Percentage	3.00%	3.00%
Loan portfolio | Other industrial and manufacturing products
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 5,309,003	$ 4,859,538
Loans and Receivables, Percentage	3.00%	3.00%
Loan portfolio | Agricultural
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 4,563,455	$ 4,201,518
Loans and Receivables, Percentage	2.00%	2.00%
Loan portfolio | Government
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 4,905,685	$ 3,868,987
Loans and Receivables, Percentage	3.00%	2.00%
Loan portfolio | Trade and tourism
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 2,475,550	$ 2,353,139
Loans and Receivables, Percentage	1.00%	1.00%
Loan portfolio | Mining products and oil
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 1,520,420	$ 1,094,718
Loans and Receivables, Percentage	1.00%	1.00%
Loan portfolio | Other
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 2,323,418	$ 2,288,046
Loans and Receivables, Percentage	1.00%	1.00%

RISK MANAGEMENT - Concentrati_2

RISK MANAGEMENT - Concentrations of credit risk - Concentration by location (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 182,128,114	$ 176,881,841
Loan portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	182,128,114	176,881,841
Loan portfolio | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	119,455,090	117,172,051
Loan portfolio | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	15,881,586	15,196,540
Loan portfolio | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	13,830,730	13,574,228
Loan portfolio | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,913,392	9,779,584
Loan portfolio | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	7,121,486	6,474,980
Loan portfolio | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	6,252,498	5,827,538
Loan portfolio | United States
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,853,168	4,550,268
Loan portfolio | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	3,064,020	3,553,004
Loan portfolio | Other countries
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	756,144	753,648
Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	91,306,719	92,550,025
Commercial loans | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	60,862,993	63,694,588
Commercial loans | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,178,529	4,860,338
Commercial loans | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,402,278	5,464,198
Commercial loans | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	6,174,541	5,536,851
Commercial loans | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	3,799,684	3,528,929
Commercial loans | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,488,579	2,214,411
Commercial loans | United States
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,853,155	4,549,526
Commercial loans | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,791,156	1,947,643
Commercial loans | Other countries
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	755,804	753,541
Loans to consumers
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	59,587,929	55,200,581
Loans to consumers | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	39,442,151	35,912,585
Loans to consumers | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,388,382	5,190,354
Loans to consumers | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	5,900,357	5,618,362
Loans to consumers | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,881,174	2,593,606
Loans to consumers | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,322,700	2,085,005
Loans to consumers | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,778,912	2,636,766
Loans to consumers | United States
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	13	742
Loans to consumers | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	873,900	1,163,054
Loans to consumers | Other countries
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	340	107
Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,661,389	17,279,362
Mortgages | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	7,548,152	6,672,612
Mortgages | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	4,525,877	4,343,247
Mortgages | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	2,444,897	2,381,741
Mortgages | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	1,805,626	1,617,341
Mortgages | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	964,977	857,799
Mortgages | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	978,368	969,731
Mortgages | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	393,492	436,891
Microcredit
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	410,320	425,697
Microcredit | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	410,320	425,697
Financial leasing
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	12,161,757	11,426,176
Financial leasing | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	11,191,474	10,466,569
Financial leasing | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	788,798	802,601
Financial leasing | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	83,198	109,927
Financial leasing | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	52,051	31,786
Financial leasing | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	34,125	3,247
Financial leasing | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	6,639	6,630
Financial leasing | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 5,472	$ 5,416

RISK MANAGEMENT - Concentrati_3

RISK MANAGEMENT - Concentrations of credit risk - Concentration by currency (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 182,128,114	$ 176,881,841
Loan portfolio
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	182,128,114	176,881,841
Loan portfolio | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	113,031,686	109,858,751
Loan portfolio | Foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	69,096,428	67,023,090
Commercial loans
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	91,306,719	92,550,025
Commercial loans | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	55,647,778	57,651,220
Commercial loans | Foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	35,658,941	34,898,805
Loans to consumers
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	59,587,929	55,200,581
Loans to consumers | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	39,382,167	35,848,422
Loans to consumers | Foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	20,205,762	19,352,159
Mortgages
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	18,661,389	17,279,362
Mortgages | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	7,547,978	6,672,423
Mortgages | Foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	11,113,411	10,606,939
Microcredit
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	410,320	425,697
Microcredit | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	410,320	425,697
Financial leasing
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	12,161,757	11,426,176
Financial leasing | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	10,043,443	9,260,989
Financial leasing | Foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Credit portfolio at amortized cost	$ 2,118,314	$ 2,165,187

RISK MANAGEMENT - Participation

RISK MANAGEMENT - Participation for loan portfolio in foreign currency (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Disclosure of risk management [abstract]
Percentage of maximum participation of dollar for loan portfolio in foreign currency	37.90%
Value of dollars in maximum participation for loan portfolio in foreign currency	$ 21,084

RISK MANAGEMENT - Investment de

RISK MANAGEMENT - Investment debt securities - Concentration by sector (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Colombia, Pesos | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,030,819	2,940,295
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Foreign currency | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Debt securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	4,067,006	3,321,177
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	606,107	441,801
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	10,666,770	9,867,018
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	10,942,222	9,068,739
Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	2,425,760	2,270,642
Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	2,424,033	2,210,108
Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	1,727	60,534
Securities issued by the Colombian Government | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	9,834,271	9,256,358
Securities issued by the Colombian Government | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	1,809,671	1,269,416
Securities issued by other of the Colombian Government entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,029,802	2,931,172
Securities issued by other of the Colombian Government entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Colombia, Pesos | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,029,802	2,931,172
Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	175,794	128,546
Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	175,794	108,072
Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets		20,473
Securities issued by other of the Colombian Government entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	260,213	194,933
Securities issued by other of the Colombian Government entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	205,465	302,701
Securities issued by foreign Governments | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Securities issued by foreign Governments | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Foreign currency | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	139,534	98,155
Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	139,534	98,155
Securities issued by foreign Governments | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	4,997,430	3,015,556
Securities issued by central banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	13,966	12,914
Securities issued by central banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	13,966	12,914
Securities issued by central banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	970,095	1,131,740
Securities issued by other financial entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	1,017	9,123
Securities issued by other financial entities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Colombia, Pesos | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	1,017	9,123
Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	1,850,422	1,218,751
Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	1,402,094	972,789
Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	448,328	245,962
Securities issued by other financial entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	495,863	388,019
Securities issued by other financial entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	2,559,062	2,920,462
Securities issued by entities of the non-financial sector entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	33,942	29,122
Securities issued by entities of the non-financial sector entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	33,942	29,122
Securities issued by entities of the non-financial sector entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	25,733	27,708
Securities issued by entities of the non-financial sector entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	9,107	182,232
Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	33,695	4,848
Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	31,143	1,086
Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	2,552	3,763
Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Other debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	50,690
Other debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	$ 391,392	$ 246,632

RISK MANAGEMENT - Investment _2

RISK MANAGEMENT - Investment debt securities - Concentration by location (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Gross carrying amount | Colombia
Disclosure of financial assets [line items]
Financial assets	20,026,227	18,047,109
Debt securities | Gross carrying amount | Costa Rica
Disclosure of financial assets [line items]
Financial assets	3,006,686	1,674,052
Debt securities | Gross carrying amount | United States
Disclosure of financial assets [line items]
Financial assets	1,883,400	2,412,555
Debt securities | Gross carrying amount | Guatemala
Disclosure of financial assets [line items]
Financial assets	1,311,695	999,544
Debt securities | Gross carrying amount | Panama
Disclosure of financial assets [line items]
Financial assets	1,211,680	813,711
Debt securities | Gross carrying amount | Honduras
Disclosure of financial assets [line items]
Financial assets	621,311	586,275
Debt securities | Gross carrying amount | Brazil
Disclosure of financial assets [line items]
Financial assets	417,223	424,339
Debt securities | Gross carrying amount | El Salvador
Disclosure of financial assets [line items]
Financial assets	274,323	40,890
Debt securities | Gross carrying amount | Peru
Disclosure of financial assets [line items]
Financial assets	192,845	352,795
Debt securities | Gross carrying amount | Chile
Disclosure of financial assets [line items]
Financial assets	146,093	150,239
Debt securities | Gross carrying amount | Multilateral - Bladex (Foreign Trade Bank of Latin America)
Disclosure of financial assets [line items]
Financial assets	89,529	87,500
Debt securities | Gross carrying amount | Nicaragua
Disclosure of financial assets [line items]
Financial assets	79,300	64,918
Debt securities | Gross carrying amount | Mexico
Disclosure of financial assets [line items]
Financial assets	74,591	13,761
Debt securities | Gross carrying amount | Multilateral - Central American Bank for Economic Integration
Disclosure of financial assets [line items]
Financial assets	6,642
Debt securities | Gross carrying amount | Barbados
Disclosure of financial assets [line items]
Financial assets	$ 4,524
Debt securities | Gross carrying amount | Multilateral - Andean Development Corporation (Corporación Andina de Fomento)
Disclosure of financial assets [line items]
Financial assets		31,156
Debt securities | Gross carrying amount | BAC San José Liquid Fund (BAC San José Fondo Líquido – Riesgo País Mixto)
Disclosure of financial assets [line items]
Financial assets		$ 3,763

RISK MANAGEMENT - Investment _3

RISK MANAGEMENT - Investment debt securities - Concentration by sovereign risk (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 19,229,712	$ 15,942,447
Central Government debt instruments held, Percentage	100.00%	100.00%
Total Sovereign Risk	$ 20,213,773	$ 17,087,101
Investment grade
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 15,042,044	$ 13,795,500
Central Government debt instruments held, Percentage	78.22%	86.53%
Investment grade | Colombia
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 14,069,704	$ 12,796,415
Central Government debt instruments held, Percentage	73.17%	80.27%
Investment grade | Panama
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 770,854	$ 550,674
Central Government debt instruments held, Percentage	4.01%	3.45%
Investment grade | United States
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 167,743	$ 415,412
Central Government debt instruments held, Percentage	0.87%	2.61%
Investment grade | Chile
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 33,743	$ 32,999
Central Government debt instruments held, Percentage	0.18%	0.20%
Speculative grade
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 4,187,668	$ 2,146,947
Central Government debt instruments held, Percentage	21.78%	13.47%
Central Bank debt instruments held	$ 984,061	$ 1,144,654
Central Bank debt instruments held, Percentage	100.00%	100.00%
Speculative grade | Barbados
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 4,524
Central Government debt instruments held, Percentage	0.02%
Speculative grade | Costa Rica
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 2,817,392	$ 1,437,850
Central Government debt instruments held, Percentage	14.65%	9.02%
Central Bank debt instruments held	$ 167,379	$ 208,766
Central Bank debt instruments held, Percentage	17.01%	18.24%
Speculative grade | Honduras
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 403,813	$ 402,275
Central Government debt instruments held, Percentage	2.10%	2.52%
Central Bank debt instruments held	$ 193,026	$ 184,000
Central Bank debt instruments held, Percentage	19.62%	16.07%
Speculative grade | Guatemala
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 645,802	$ 265,932
Central Government debt instruments held, Percentage	3.36%	1.67%
Central Bank debt instruments held	$ 623,656	$ 686,970
Central Bank debt instruments held, Percentage	63.38%	60.02%
Speculative grade | El Salvador
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 236,837	$ 40,890
Central Government debt instruments held, Percentage	1.23%	0.26%
Speculative grade | Nicaragua
Disclosure Of Financial Risk Management Explanatory [Line Items]
Central Government debt instruments held	$ 79,300
Central Government debt instruments held, Percentage	0.41%	0.00%
Central Bank debt instruments held		$ 64,918
Central Bank debt instruments held, Percentage		5.67%

RISK MANAGEMENT - Modified Fina

RISK MANAGEMENT - Modified Financial Assets - Restructured loans (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Restructured loans	$ 4,391,171	$ 3,968,583
Local
Disclosure Of Financial Risk Management Explanatory [Line Items]
Restructured loans	2,611,573	2,693,018
Foreign
Disclosure Of Financial Risk Management Explanatory [Line Items]
Restructured loans	$ 1,779,598	$ 1,275,565

RISK MANAGEMENT - Modified Fi_2

RISK MANAGEMENT - Modified Financial Assets - Foreclosed assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of risk management [abstract]
Foreclosed assets received	$ 297,481	$ 188,245
Foreclosed assets sold	$ 133,512	$ 52,785

RISK MANAGEMENT - Modified Fi_3

RISK MANAGEMENT - Modified Financial Assets - Credit commitments (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Loan commitments and financial guarantee contracts
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	$ 32,154,604	$ 30,925,681
Loan commitments and financial guarantee contracts | Colombia, Pesos
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	14,914,209	14,918,915
Loan commitments and financial guarantee contracts | United States of America, Dollars
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	13,750,968	12,885,921
Loan commitments and financial guarantee contracts | Euro Member Countries, Euro
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	3,292,845	2,892,670
Loan commitments and financial guarantee contracts | Other currencies
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	196,582	228,175
Financial guarantee contracts
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	3,341,641	3,446,601
Unused credit card limits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	1,133,385	1,186,691
Unused limits of overdrafts
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	67,126	306,740
Unused letters of credit
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	23,125,249	20,816,061
Other
Disclosure Of Financial Risk Management Explanatory [Line Items]
Notional amount	$ 4,487,203	$ 5,169,588

RISK MANAGEMENT - Offset of fin

RISK MANAGEMENT - Offset of financial assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of offsetting of financial assets [line items]
Gross financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	$ 1,485,496	$ 5,406,686
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	1,485,496	5,406,686
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial assets	(634,639)	(4,548,117)
Cash collateral received subject to enforceable master netting arrangement or similar agreement not set off against financial assets	(42,157)	(315,876)
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	808,700	542,693
Derivatives
Disclosure of offsetting of financial assets [line items]
Gross financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	1,084,032	798,824
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	1,084,032	798,824
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial assets	(314,891)	(199,773)
Cash collateral received subject to enforceable master netting arrangement or similar agreement not set off against financial assets	(42,157)	(265,361)
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	726,984	333,690
Repurchase Agreements
Disclosure of offsetting of financial assets [line items]
Gross financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	401,464	4,607,862
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	401,464	4,607,862
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial assets	(319,748)	(4,348,344)
Cash collateral received subject to enforceable master netting arrangement or similar agreement not set off against financial assets		(50,515)
Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements	$ 81,716	$ 209,003

RISK MANAGEMENT - Offset of f_2

RISK MANAGEMENT - Offset of financial liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of offsetting of financial liabilities [line items]
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements	$ 8,515,398	$ 6,075,325
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	8,515,398	6,075,325
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities	(7,636,069)	(5,179,714)
Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities	(80,775)	(50,982)
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements	798,554	844,629
Derivatives
Disclosure of offsetting of financial liabilities [line items]
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements	1,056,736	1,006,844
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	1,056,736	1,006,844
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities	(28,587)	(10,116)
Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities	(80,775)	(50,982)
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements	947,374	945,746
Repurchase Agreements
Disclosure of offsetting of financial liabilities [line items]
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements	7,458,662	5,068,481
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position	7,458,662	5,068,481
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities	(7,607,482)	(5,169,598)
Net financial liabilities (assets) subject to offsetting, enforceable master netting arrangements or similar agreements	$ (148,820)	$ (101,117)

RISK MANAGEMENT - Trading book

RISK MANAGEMENT - Trading book risk - Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,376,239	23,528,815
Financial assets at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,996,398	9,754,120
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	26,292,207	22,729,991
Debt securities | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,084,032	798,824
Derivatives | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,084,032	798,824
Derivatives | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	917,434	768,686
Derivatives | Hedging instruments [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 166,598	$ 30,138

RISK MANAGEMENT - Trading boo_2

RISK MANAGEMENT - Trading book risk - Liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,056,736	1,006,844
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,056,736	1,006,844
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Hedging derivative liabilities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	94,298	195,539
Derivatives | Trading derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 962,438	$ 811,305

RISK MANAGEMENT - Trading boo_3

RISK MANAGEMENT - Trading book risk - Net position (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial liabilities	231,392,733	216,578,285
Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,376,239	23,528,815
Financial liabilities	1,056,736	1,006,844
Net position	$ 26,319,503	$ 22,521,971

RISK MANAGEMENT - Risk Manageme

RISK MANAGEMENT - Risk Management - Regulatory (Details) - Measure Trading Risk Method - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Banco de Bogota S.A.
Disclosure of nature and extent of risks arising from financial instruments [line items]
Value	$ 1,280,084	$ 924,767
Basis points of regulatory capital (as a percent)	1.41%	1.16%
Banco de Occidente S.A.
Disclosure of nature and extent of risks arising from financial instruments [line items]
Value	$ 165,928	$ 189,871
Basis points of regulatory capital (as a percent)	0.52%	0.75%
Banco Popular S.A.
Disclosure of nature and extent of risks arising from financial instruments [line items]
Value	$ 128,317	$ 162,888
Basis points of regulatory capital (as a percent)	0.72%	0.93%
Banco Commercial Av Villas S A
Disclosure of nature and extent of risks arising from financial instruments [line items]
Value	$ 58,032	$ 37,942
Basis points of regulatory capital (as a percent)	0.59%	0.41%
Corporacion Financiera Colombiana S.A.
Disclosure of nature and extent of risks arising from financial instruments [line items]
Value	$ 173,456	$ 219,656
Basis points of regulatory capital (as a percent)	0.07%	0.12%

RISK MANAGEMENT - Risk Manage_2

RISK MANAGEMENT - Risk Management - Value at risk (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Interest rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	$ 568,537	$ 352,595
Interest rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	158,200	184,106
Interest rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	108,112	148,343
Interest rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	55,021	37,115
Interest rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	154,477	208,375
Exchange rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	379,406	298,257
Exchange rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,995	1,479
Exchange rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	5,280	3,325
Exchange rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	80	30
Exchange rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,129	436
Shares | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	10,964	8,231
Shares | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	348	946
Shares | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	12,119	10,125
Mutual funds | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	321,177	265,684
Mutual funds | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,733	4,286
Mutual funds | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	14,577	10,274
Mutual funds | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,931	797
Mutual funds | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,731	720
VaR Portfolio | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	1,280,084	924,767
VaR Portfolio | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	165,928	189,871
VaR Portfolio | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	128,317	162,888
VaR Portfolio | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	58,032	37,942
VaR Portfolio | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	173,456	219,656
Minimum | Interest rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	444,950	352,595
Minimum | Interest rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	125,615	184,106
Minimum | Interest rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	107,694	115,829
Minimum | Interest rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	22,193	12,884
Minimum | Interest rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	67,499	187,983
Minimum | Exchange rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	277,932	234,509
Minimum | Exchange rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	104	595
Minimum | Exchange rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,699	2,125
Minimum | Exchange rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	1
Minimum | Exchange rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	610	436
Minimum | Shares | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	8,394	6,647
Minimum | Shares | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	22	929
Minimum | Shares | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	10,864	10,125
Minimum | Mutual funds | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	270,918	200,510
Minimum | Mutual funds | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,317	2,820
Minimum | Mutual funds | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	8,701	6,583
Minimum | Mutual funds | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	489	177
Minimum | Mutual funds | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,577	699
Minimum | VaR Portfolio | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	1,002,195	828,688
Minimum | VaR Portfolio | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	130,036	187,521
Minimum | VaR Portfolio | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	121,491	126,533
Minimum | VaR Portfolio | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	22,852	15,844
Minimum | VaR Portfolio | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	81,632	205,505
Weighted Average | Interest rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	520,569	387,828
Weighted Average | Interest rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	144,188	199,399
Weighted Average | Interest rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	108,389	136,338
Weighted Average | Interest rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	40,628	35,893
Weighted Average | Interest rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	104,128	201,515
Weighted Average | Exchange rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	334,039	263,363
Weighted Average | Exchange rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,458	1,697
Weighted Average | Exchange rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	5,155	3,867
Weighted Average | Exchange rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	27	985
Weighted Average | Exchange rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,599	4,490
Weighted Average | Shares | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	9,601	7,605
Weighted Average | Shares | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	22	949
Weighted Average | Shares | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	11,085	10,370
Weighted Average | Mutual funds | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	308,799	226,030
Weighted Average | Mutual funds | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,556	3,849
Weighted Average | Mutual funds | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	10,769	6,971
Weighted Average | Mutual funds | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	628	1,441
Weighted Average | Mutual funds | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,935	856
Weighted Average | VaR Portfolio | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	1,173,008	884,826
Weighted Average | VaR Portfolio | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	151,202	204,945
Weighted Average | VaR Portfolio | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	124,335	148,125
Weighted Average | VaR Portfolio | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	41,284	38,319
Weighted Average | VaR Portfolio | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	120,746	217,231
Maximum | Interest rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	607,973	420,474
Maximum | Interest rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	162,628	218,732
Maximum | Interest rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	109,605	154,233
Maximum | Interest rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	55,972	48,978
Maximum | Interest rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	156,208	211,039
Maximum | Exchange rate | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	383,189	298,257
Maximum | Exchange rate | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,426	3,817
Maximum | Exchange rate | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	5,615	6,135
Maximum | Exchange rate | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	80	2,738
Maximum | Exchange rate | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,867	7,707
Maximum | Shares | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	10,964	8,335
Maximum | Shares | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	23	963
Maximum | Shares | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	11,283	10,954
Maximum | Mutual funds | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	322,458	266,906
Maximum | Mutual funds | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	4,733	4,526
Maximum | Mutual funds | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	14,954	10,420
Maximum | Mutual funds | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	2,931	4,455
Maximum | Mutual funds | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	3,473	1,020
Maximum | VaR Portfolio | Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	1,318,037	969,931
Maximum | VaR Portfolio | Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	171,787	227,074
Maximum | VaR Portfolio | Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	130,135	168,310
Maximum | VaR Portfolio | Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	58,032	52,166
Maximum | VaR Portfolio | Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Value at risk	$ 174,832	$ 226,727

RISK MANAGEMENT - Investment Pr

RISK MANAGEMENT - Investment Price Risk in Equity Instruments (Details) - Equity investments - Investment securities at fair value - Investments in equity instruments designated at fair value through other comprehensive income [member] - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Investment subject to Regulatory VaR	$ 75,584	$ 45,706
Regulatory VaR	$ 11,111	$ 6,719
Percentage of portfolio	100.00%	100.00%
Later than three years [member]
Disclosure Of Financial Risk Management Explanatory [Line Items]
Investment subject to Regulatory VaR	$ 75,584	$ 45,706
Regulatory VaR	$ 11,111	$ 6,719
Percentage of portfolio	100.00%	100.00%

RISK MANAGEMENT - Structural fo

RISK MANAGEMENT - Structural foreign exchange risk - Sensitivity analysis of foreign exchange effect (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)$ / $	Dec. 31, 2018COP ($)
Disclosure of risk management [abstract]
Increase in peso value of USD | $ / $	100
Decrease in peso value of USD | $ / $	100
Increase in equity due to change in value of USD	$ (13,874)	$ (33,579)
Decrease in equity due to change in value of USD	13,874	33,579
Increase in profit before tax due to change in value of USD	(20,708)	(53,300)
Decrease in profit before tax due to change in value of USD	$ 20,708	$ 53,300

RISK MANAGEMENT - Structural _2

RISK MANAGEMENT - Structural foreign exchange risk - Financial assets (Details) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019COP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018COP ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		$ 259,515,428		$ 245,105,338
Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 24,436	103,554,011	$ 23,591	97,990,238
Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,162		6,562
Financial assets at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		11,996,398		9,754,120
Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		224,581,946		215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		21,608,992		18,935,757
Loan portfolio | Financial assets at amortised cost, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	16,078	69,096,428	15,923	67,023,090
Loan portfolio | Financial assets at amortised cost, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	5,006		4,706
Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		9,113,668		7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		9,113,668		7,204,312
Investment securities at fair value
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		22,947,186		20,057,614
Trade receivables / other accounts receivable
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		11,702,301		9,300,643
Trade receivables / other accounts receivable | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	238	1,329,979	246	1,370,820
Trade receivables / other accounts receivable | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	168		176
Cash and cash equivalents
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		30,117,236		28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		30,117,236		28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	5,003	20,545,934	4,859	19,297,896
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,266		1,075
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7	23,043	10	32,321
Debt securities | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		4,673,113		3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		4,673,113		3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	168	606,107	121	441,801
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	17		15
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		10,102		31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		21,608,992		18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,634	10,942,222	2,201	9,068,739
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	705		589
Derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,084,032		798,824
Derivatives | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		917,434		768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		917,434		768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	257	843,700	222	725,433
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets			1
Derivatives | Hedging instruments [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		166,598		30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		166,598		30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 51	$ 166,598	$ 9	$ 30,138

RISK MANAGEMENT - Structural _3

RISK MANAGEMENT - Structural foreign exchange risk - Financial liabilities (Details) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019COP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018COP ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		$ 231,392,733		$ 216,578,285
Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 25,909	106,534,815	$ 25,109	100,280,203
Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	6,600		5,746
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		1,056,736		1,006,844
Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		230,335,997		215,571,441
Customer deposits
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		175,491,421		164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		175,491,421		164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	16,772	74,064,051	14,914	64,971,825
Customer deposits | Financial liabilities at amortised cost, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	5,828		5,077
Financial obligations
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		54,844,576		51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		54,844,576		51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	8,428	30,148,583	9,457	32,899,230
Financial obligations | Financial liabilities at amortised cost, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	772		666
Accounts payable | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	407	1,334,317	442	1,437,447
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		962,438		811,305
Derivatives | Trading derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		962,438		811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		962,438		811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	274	897,138	236	776,162
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities			3
Derivatives | Hedging derivative liabilities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		94,298		195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		94,298		195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 28	$ 90,726	$ 60	$ 195,539

RISK MANAGEMENT - Structural _4

RISK MANAGEMENT - Structural foreign exchange risk - Net financial asset (liability) position (Details) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019COP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018COP ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		$ 259,515,428		$ 245,105,338
Financial liabilities		231,392,733		216,578,285
Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 24,436	103,554,011	$ 23,591	97,990,238
Financial liabilities	25,909	106,534,815	25,109	100,280,203
Net financial asset (liability) position	(1,473)	$ (2,980,804)	(1,518)	$ (2,289,965)
Other currencies | Exchange rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,162		6,562
Financial liabilities	6,600		5,746
Net financial asset (liability) position	$ 562		$ 816

RISK MANAGEMENT - Structural in

RISK MANAGEMENT - Structural interest rate risk - Financial assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	253,580,182	240,543,265
Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	36,350,229	29,316,333
Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	46,411,252	50,704,588
Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	60,075,543	42,614,575
Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	13,245,621	16,365,356
Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	97,497,537	101,542,413
Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	79,821,658	80,073,769
Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	61,118,154	56,219,492
Financial assets at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	224,581,946	215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Commercial loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,862,835	19,358,216
Commercial loans | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	101,655,660	102,408,977
Commercial loans | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,918,784	28,546,532
Commercial loans | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	44,037,038	29,463,725
Commercial loans | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,461,102	9,612,217
Commercial loans | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,238,736	34,786,503
Commercial loans | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	52,017,308	51,184,839
Commercial loans | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,356,016	2,870,082
Loans to consumers | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	59,840,451	55,455,064
Loans to consumers | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,993,634	10,538,797
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,758,318	7,975,944
Loans to consumers | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,660,573	2,566,425
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	37,427,926	34,373,898
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,746,657	10,482,629
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	32,132,946	29,159,698
Mortgages | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	20,221,683	18,592,103
Mortgages | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,212,959	7,649,242
Mortgages | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,890,949	1,771,712
Mortgages | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	900,236	419,518
Mortgages | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,217,539	8,751,631
Mortgages | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,322,696	10,924,349
Mortgages | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,463,304	7,284,181
Microcredit | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	410,320	425,697
Microcredit | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,911	31,729
Microcredit | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	18,568	17,956
Microcredit | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	39,283	38,304
Microcredit | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	321,558	337,708
Microcredit | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,700	3,582
Microcredit | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	181,181	195,463
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,282,733	7,069,120
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,895,674	4,025,717
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	387,059	3,043,403
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	263,922	2,989,292
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	123,137	53,714
Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	22,947,186	20,057,614
Service concession arrangements
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,031,916	5,118,683
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Cash and cash equivalents
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,454,555	25,290,616
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,662,681	3,110,667
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,765,688	671,047
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	265,131	951,850
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	23,043	1,348,691
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,028
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		896,162
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,028
Debt securities | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	82,749	25,077
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,972,593	376,999
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	871,982	1,216,834
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,745,789	2,144,068
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	383,470	231,620
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,682,144	1,912,448
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	743,846	131,497
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,132,946	2,056,389
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,289,402	1,163,367
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	17,442,798	15,584,504
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,377,875	872,882
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 15,169,324	$ 14,711,622

RISK MANAGEMENT - Structural _5

RISK MANAGEMENT - Structural interest rate risk - Financial liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	230,335,997	215,571,441
Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,738,593	17,907,347
Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	103,251,205	76,945,718
Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	40,766,645	65,085,094
Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	18,815,407	18,875,464
Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	45,764,147	36,757,818
Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	23,443,840	19,203,461
Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	31,620,818	31,261,911
Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	230,335,997	215,571,441
Customer deposits
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Checking accounts | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	42,449,702	39,702,878
Checking accounts | Financial liabilities at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,274,823	17,325,225
Checking accounts | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,174,879	22,377,653
Time deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	73,225,189	66,853,012
Time deposits | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	10,514,186	9,741,623
Time deposits | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	29,426,123	28,546,101
Time deposits | Financial liabilities at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	15,525,670	15,447,825
Time deposits | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,759,210	13,117,463
Time deposits | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	7,099,730	6,801,559
Time deposits | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	15,662,115	14,998,419
Saving deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	59,352,760	57,221,439
Saving deposits | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	59,352,760	36,523,899
Saving deposits | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		20,697,540
Other deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Other deposits | Financial liabilities at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Financial obligations
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,240,479	6,814,078
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	8,414,438	6,099,084
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	75,543	714,994
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	750,498
Leases contracts | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,033,502
Leases contracts | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	93,438
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	130,472
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	158,021
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,651,571
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	132,928
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,492,554
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	16,769,842	20,610,766
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,249,132	1,566,524
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	6,367,707	11,497,277
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,335,725	1,164,075
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	5,817,278	6,382,890
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,216,263	2,899,475
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,675,778	4,320,290
Long-term debt | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,918,268	20,140,350
Long-term debt | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	276,735	73,565
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,567,489	3,369,988
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	680,677	656,291
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,393,367	16,040,506
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,738,305	6,650,249
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,747,637	11,936,378
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,882,485	3,646,796
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Not later than one month [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,175,637	563,370
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than one month and not later than six months [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,199,311	259,194
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than six months and not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	115,314	1,607,273
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,392,223	1,216,959
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Floating interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,256,614	2,852,178
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Fixed interest rate | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 42,734	$ 6,824

RISK MANAGEMENT - Structural _6

RISK MANAGEMENT - Structural interest rate risk - Gap analysis (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)
Disclosure of risk management [abstract]
Decrease in interest rates, 50 basis points, increase in interest income	$ 173,629
Decrease in interest rates, 100 basis points, increase in interest income	348,994
Increase in interest rates, 50 basis points, decrease in interest income	174,497
Increase in interest rates, 100 basis points, decrease in interest income	$ 348,935

RISK MANAGEMENT - Structural _7

RISK MANAGEMENT - Structural interest rate risk - Interest bearing assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	253,580,182	240,543,265
Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	97,497,537	101,542,413
Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	48,986,936	48,787,602
Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	79,821,658	80,073,769
Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,303,205	26,146,069
Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	61,118,154	56,219,492
Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	36,350,229	29,316,333
Financial assets at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	224,581,946	215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Commercial loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,862,835	19,358,216
Commercial loans | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	101,655,660	102,408,977
Commercial loans | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,238,736	34,786,503
Commercial loans | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	41,941,576	44,094,950
Commercial loans | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	52,017,308	51,184,839
Commercial loans | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,340,760	4,259,106
Commercial loans | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,356,016	2,870,082
Loans to consumers | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	59,840,451	55,455,064
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	37,427,926	34,373,898
Loans to consumers | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,059,643	1,099,251
Loans to consumers | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,746,657	10,482,629
Loans to consumers | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	15,901,205	14,713,486
Loans to consumers | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	32,132,946	29,159,698
Mortgages | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	20,221,683	18,592,103
Mortgages | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,217,539	8,751,631
Mortgages | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	43,814	53,296
Mortgages | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,322,696	10,924,349
Mortgages | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	391,869	330,277
Mortgages | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,463,304	7,284,181
Microcredit | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	410,320	425,697
Microcredit | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	321,558	337,708
Microcredit | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,954	2,698
Microcredit | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,700	3,582
Microcredit | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	223,485	223,954
Microcredit | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	181,181	195,463
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,282,733	7,069,120
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	387,059	3,043,403
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		397
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	263,922	2,989,292
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	123,137	53,714
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,895,674	4,025,717
Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	22,947,186	20,057,614
Service concession arrangements
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,031,916	5,118,683
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,706,030	2,488,414
Cash and cash equivalents
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,619,126	2,014,270
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	43,555	1,096,397
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	27,454,555	25,290,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,028
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,025,213	1,349,722
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		896,162
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	28,649	725,704
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,028
Debt securities | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,745,789	2,144,068
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	288,176	159,486
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	383,470	231,620
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,319,323	1,459,424
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,682,144	1,912,448
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	17,442,798	15,584,504
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	7,434	13,532
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,377,875	872,882
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,054,359	3,337,721
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 15,169,324	$ 14,711,622

RISK MANAGEMENT - Structural _8

RISK MANAGEMENT - Structural interest rate risk - Interest bearing liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	230,335,997	215,571,441
Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	45,764,147	36,757,818
Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	33,125,336	36,104,947
Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	23,443,840	19,203,461
Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	120,407,410	111,093,775
Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	31,620,818	31,261,911
Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,738,593	17,907,347
Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	230,335,997	215,571,441
Customer deposits
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Checking accounts | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	42,449,702	39,702,878
Checking accounts | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	384,579
Checking accounts | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	20,790,300	22,377,653
Checking accounts | Financial liabilities at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,274,823	17,325,225
Time deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	73,225,189	66,853,012
Time deposits | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,759,210	13,117,463
Time deposits | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	12,673,158	11,332,638
Time deposits | Financial liabilities at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	7,099,730	6,801,559
Time deposits | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	37,790,186	33,720,396
Time deposits | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	15,662,115	14,998,419
Saving deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	59,352,760	57,221,439
Saving deposits | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,159,419	16,485,565
Saving deposits | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	42,193,341	40,735,874
Other deposits | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Other deposits | Financial liabilities at amortised cost, category [member] | Non-interest | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Financial obligations
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,240,479	6,814,078
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	750,498
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities		3,492,343
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,240,479	3,321,735
Leases contracts | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,033,502
Leases contracts | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,651,571
Leases contracts | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,586
Leases contracts | Financial liabilities at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	132,928
Leases contracts | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	404,434
Leases contracts | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,492,554
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	16,769,842	20,610,766
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	5,817,278	6,382,890
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,372,926	3,406,673
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,216,263	2,899,475
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	8,504,875	9,984,328
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,675,778	4,320,290
Long-term debt | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	21,918,268	20,140,350
Long-term debt | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,393,367	16,040,506
Long-term debt | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	959,068	749,442
Long-term debt | Financial liabilities at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,738,305	6,650,249
Long-term debt | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,473,258	804,281
Long-term debt | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,747,637	11,936,378
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,882,485	3,646,796
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,392,223	1,216,959
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Floating interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	572,600	638,286
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Floating interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,256,614	2,852,178
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Not later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	10,537	149,508
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Fixed interest rate | Later than one year [member] | Interest rate
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 42,734	$ 6,824

RISK MANAGEMENT - Liquidity Ris

RISK MANAGEMENT - Liquidity Risk - Percentages in each country (Details)	12 Months Ended
	Dec. 31, 2019
Colombia | Checking account and Savings accounts
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	11.00%
Colombia | Time deposits less than eighteen months
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	4.50%
Guatemala | Deposits and Capital raising
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	11.60%
El Salvador | Demand deposits One
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	25.00%
El Salvador | Demand deposits Two
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	25.00%
El Salvador | Debt securities
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	50.00%
Honduras | Demand Deposits
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	12.00%
Honduras | Mandatory investment in local currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	5.00%
Honduras | Mandatory investment in foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	12.00%
Nicaragua | Daily, Liabilities in local and foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	12.00%
Nicaragua | Biweekly, Liabilities in local and foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	14.00%
Costa Rica | Deposits in local and foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	15.00%
Costa Rica | Capital raising in local and foreign currency
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of deposits to be maintained as reserves	15.00%

RISK MANAGEMENT - Liquidity R_2

RISK MANAGEMENT - Liquidity Risk - Liquid assets and LRI (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Banco de Bogota S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	$ 11,480,613	$ 10,936,886
Banco de Occidente S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	6,013,484	5,913,723
Banco Popular S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	2,708,977	3,622,232
Banco Commercial Av Villas S A
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	1,777,483	2,035,362
Corporacion Financiera Colombiana S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	1,648,321	1,131,464
Later than one day and not later than seven days [member] | Banco de Bogota S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	9,127,754	10,370,295
Later than one day and not later than seven days [member] | Banco de Occidente S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	5,381,263	5,244,524
Later than one day and not later than seven days [member] | Banco Popular S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	2,196,520	3,305,221
Later than one day and not later than seven days [member] | Banco Commercial Av Villas S A
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	1,489,391	1,724,944
Later than one day and not later than seven days [member] | Corporacion Financiera Colombiana S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	1,238,060	585,045
Not later than one month [member] | Banco de Bogota S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	2,141,891	8,892,523
Not later than one month [member] | Banco de Occidente S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	3,449,519	4,185,759
Not later than one month [member] | Banco Popular S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	543,111	2,505,573
Not later than one month [member] | Banco Commercial Av Villas S A
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	573,001	1,304,447
Not later than one month [member] | Corporacion Financiera Colombiana S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	970,752	386,081
Later than one month and not later than three months [member] | Banco de Bogota S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets		321,897
Liquid assets (liabilities)	(14,048,998)
Later than one month and not later than three months [member] | Banco de Occidente S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets		1,631,575
Liquid assets (liabilities)	(1,382,231)
Later than one month and not later than three months [member] | Banco Popular S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets		164,075
Liquid assets (liabilities)	(2,426,968)
Later than one month and not later than three months [member] | Banco Commercial Av Villas S A
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets (liabilities)	(1,756,092)	(37,659)
Later than one month and not later than three months [member] | Corporacion Financiera Colombiana S.A.
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Liquid assets	$ 440,603
Liquid assets (liabilities)		$ (159,983)

RISK MANAGEMENT - Liquidity R_3

RISK MANAGEMENT - Liquidity Risk - Undiscounted cash flows of financial assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	331,806,505	283,324,271
Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	59,203,734	55,376,409
Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	53,059,805	41,724,636
Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	32,519,708	26,570,268
Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	187,023,258	159,652,958
Financial assets at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	224,581,946	215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Commercial loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,862,835	19,358,216
Commercial loans | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	129,850,797	109,542,816
Commercial loans | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	14,025,655	12,524,966
Commercial loans | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	29,465,200	24,196,186
Commercial loans | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	16,865,877	13,982,791
Commercial loans | Financial assets at amortised cost, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	69,494,065	58,838,873
Loans to consumers | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	89,250,039	71,536,227
Loans to consumers | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	8,662,984	6,218,323
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	17,571,059	12,707,647
Loans to consumers | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,005,080	7,369,756
Loans to consumers | Financial assets at amortised cost, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	53,010,916	45,240,501
Mortgages | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	35,798,057	35,361,710
Mortgages | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	447,147	297,155
Mortgages | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	984,046	1,376,279
Mortgages | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,147,043	1,626,730
Mortgages | Financial assets at amortised cost, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	33,219,821	32,061,546
Microcredit | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	541,084	568,025
Microcredit | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	55,112	58,093
Microcredit | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	122,167	125,474
Microcredit | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	123,624	128,180
Microcredit | Financial assets at amortised cost, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	240,181	256,278
Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	22,947,186	20,057,614
Trade receivables / other accounts receivable
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,702,301	9,300,643
Trade receivables / other accounts receivable | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	11,973,531	7,191,048
Trade receivables / other accounts receivable | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,342,007	4,260,837
Trade receivables / other accounts receivable | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		397
Trade receivables / other accounts receivable | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	9,631,524	2,929,814
Other financial assets | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,163,339	631,231
Other financial assets | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,163,339	631,231
Cash and cash equivalents
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	28,683,338	28,450,114
Cash and cash equivalents | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	28,683,338	28,450,114
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,095,599	3,006,077
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	833,179	1,691,200
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	858,257	447,674
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,404,163	866,184
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets		1,019
Debt securities | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	4,889,513	3,971,257
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	937,550	576,072
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,491,328	350,307
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	984,902	1,026,669
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,475,733	2,018,209
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	25,477,301	22,275,570
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,269,356	163,389
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	2,334,438	2,272,601
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,951,863	1,547,078
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	19,921,644	18,292,502
Derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	1,084,032	798,824
Derivatives | Trading securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	916,663	757,172
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	620,242	476,088
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	229,909	244,385
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	37,138	22,483
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	29,374	14,216
Derivatives | Hedging instruments [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	167,244	33,024
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Not later than one month [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	163,825	28,941
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than one month and not later than six months [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	3,401	$ 4,083
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Later than six months and not later than one year [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 18

RISK MANAGEMENT - Liquidity R_4

RISK MANAGEMENT - Liquidity Risk - Undiscounted cash flows of financial liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	248,157,729	235,086,316
Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	124,910,261	122,454,820
Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	36,909,133	37,432,342
Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	22,923,853	22,508,914
Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	63,414,482	52,690,240
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,056,736	1,006,844
Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	230,335,997	215,571,441
Customer deposits
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	175,491,421	164,359,451
Checking accounts | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	42,449,701	39,708,169
Checking accounts | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	42,449,701	39,708,169
Time deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	77,941,864	70,741,972
Time deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	8,631,705	8,375,127
Time deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	25,954,834	26,030,729
Time deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,871,428	15,605,292
Time deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	25,483,897	20,730,824
Saving deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	59,352,759	57,443,560
Saving deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	59,352,759	57,443,560
Other deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Other deposits | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	463,770	582,122
Financial obligations
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	54,844,576	51,211,990
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,239,796	6,813,329
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	5,819,104	6,813,329
Interbank and overnight funds | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,420,692
Leases contracts | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,036,520
Leases contracts | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	92,255
Leases contracts | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	122,866
Leases contracts | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	152,352
Leases contracts | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,669,047
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	17,756,122	22,183,396
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	2,211,662	1,665,739
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	4,877,570	8,779,185
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,215,999	4,490,249
Borrowing from banks and other | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	7,450,891	7,248,223
Long-term debt | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	25,830,344	24,432,925
Long-term debt | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	92,130	138,362
Long-term debt | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,244,776	904,752
Long-term debt | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,260,353	1,896,186
Long-term debt | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	23,233,085	21,493,625
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	4,693,999	4,336,693
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	119,662	145,712
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	751,027	578,545
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	388,785	423,122
Borrowing from development entities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	3,434,525	3,189,314
Other financial liabilities | Financial liabilities at amortised cost, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	6,368,186	7,847,649
Other financial liabilities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	4,997,412	6,884,154
Other financial liabilities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	240,030	896,154
Other financial liabilities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	9,306	67,042
Other financial liabilities | Financial liabilities at amortised cost, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	1,121,438	299
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	927,985	800,347
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	606,476	515,697
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	277,657	236,390
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	25,612	20,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	18,240	27,955
Derivatives | Hedging derivative liabilities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Liquidity risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	96,683	196,154
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Liquidity risk | Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	73,625	182,849
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Liquidity risk | Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	19,681	6,587
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Liquidity risk | Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	18	$ 6,718
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] | Liquidity risk | Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial liabilities	$ 3,359

RISK MANAGEMENT - Liquidity R_5

RISK MANAGEMENT - Liquidity Risk - Undiscounted cash flows of commitment loans (Details) - Liquidity risk - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	$ 24,796,126	$ 27,965,422
Financial guarantee contracts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	2,488,242	2,313,540
Standby letters of credit
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	953,289	928,795
Unused limits of overdrafts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	67,126	306,740
Standby credit card facility
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	20,574,062	20,409,059
Undrawn approved loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	614,137	3,612,600
Other
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	99,270	394,688
Not later than one month [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	24,223,428	27,948,878
Not later than one month [member] | Financial guarantee contracts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	2,488,242	2,297,206
Not later than one month [member] | Standby letters of credit
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	953,289	928,585
Not later than one month [member] | Unused limits of overdrafts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	67,126	306,740
Not later than one month [member] | Standby credit card facility
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	20,054,171	20,409,059
Not later than one month [member] | Undrawn approved loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	561,330	3,612,600
Not later than one month [member] | Other
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	99,270	394,688
Later than one month and not later than six months [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	162,258	9,950
Later than one month and not later than six months [member] | Financial guarantee contracts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans		9,742
Later than one month and not later than six months [member] | Standby letters of credit
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans		208
Later than one month and not later than six months [member] | Standby credit card facility
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	109,451
Later than one month and not later than six months [member] | Undrawn approved loans
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	52,807
Later than six months and not later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	82,088	4,224
Later than six months and not later than one year [member] | Financial guarantee contracts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans		4,222
Later than six months and not later than one year [member] | Standby letters of credit
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans		2
Later than six months and not later than one year [member] | Standby credit card facility
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	82,088
Later than one year [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	328,352	2,370
Later than one year [member] | Financial guarantee contracts
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans		$ 2,370
Later than one year [member] | Standby credit card facility
Disclosure of nature and extent of risks arising from financial instruments [line items]
Commitments loans	$ 328,352

RISK MANAGEMENT - Regulatory ca

RISK MANAGEMENT - Regulatory capital management (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Banco de Bogota S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Regulatory Capital	$ 18,508,842	$ 17,730,918
Basic ordinary equity	13,082,557	11,655,669
Basic additional equity	5,426,285	6,075,249
Market Risk	14,223,159	10,275,186
Credit Risk	129,836,198	120,604,192
Total assets weighted by risk	$ 144,059,357	$ 130,879,378
Total solvency risk index.	12.85%	13.55%
Basic solvency risk index.	9.08%	8.91%
Banco de Occidente S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Regulatory Capital	$ 3,908,477	$ 3,917,005
Basic ordinary equity	3,202,018	3,166,981
Basic additional equity	706,459	750,024
Market Risk	1,401,440	1,754,924
Credit Risk	31,807,330	29,405,386
Total assets weighted by risk	$ 33,208,770	$ 31,160,310
Total solvency risk index.	11.77%	12.57%
Basic solvency risk index.	9.64%	10.16%
Banco Popular S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Regulatory Capital	$ 2,384,460	$ 2,170,075
Basic ordinary equity	1,898,181	1,648,438
Basic additional equity	486,279	521,637
Market Risk	1,425,745	1,809,867
Credit Risk	21,015,333	19,624,155
Total assets weighted by risk	$ 22,441,078	$ 21,434,022
Total solvency risk index.	10.63%	10.12%
Basic solvency risk index.	8.46%	7.69%
Banco Commercial Av Villas S A
Disclosure Of Financial Risk Management Explanatory [Line Items]
Regulatory Capital	$ 1,293,359	$ 1,176,179
Basic ordinary equity	1,174,605	1,106,529
Basic additional equity	118,754	69,650
Market Risk	644,799	421,379
Credit Risk	11,488,357	10,759,423
Total assets weighted by risk	$ 12,133,156	$ 11,180,802
Total solvency risk index.	10.66%	10.52%
Basic solvency risk index.	9.68%	9.90%
Corporacion Financiera Colombiana S.A.
Disclosure Of Financial Risk Management Explanatory [Line Items]
Regulatory Capital	$ 4,032,713	$ 3,631,640
Basic ordinary equity	3,761,178	3,381,550
Basic additional equity	271,535	250,090
Market Risk	1,927,291	2,440,618
Credit Risk	10,102,536	7,834,598
Total assets weighted by risk	$ 12,029,827	$ 10,275,216
Total solvency risk index.	33.52%	35.34%
Basic solvency risk index.	31.27%	32.91%

RISK MANAGEMENT - Textual (Deta

RISK MANAGEMENT - Textual (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Risk Management Explanatory [Line Items]
Collateralization of cash	$ (38,618)	$ 214,379
Investment in debt instrument as a percentage of total portfolio	60.45%	63.63%
Percentage of average difference in foreign currency denominated rights and foreign currency denominated obligations on consolidated basis	40.00%
Electricaribe | Accumulated impairment
Disclosure Of Financial Risk Management Explanatory [Line Items]
Write-offs / Charge-offs of the year	$ 804,292
Tranzit | Accumulated impairment
Disclosure Of Financial Risk Management Explanatory [Line Items]
Write-offs / Charge-offs of the year	$ 103,508
Sovereign
Disclosure Of Financial Risk Management Explanatory [Line Items]
LGD recovery rate weights	55.00%
Corporate
Disclosure Of Financial Risk Management Explanatory [Line Items]
LGD recovery rate weights	47.70%
Minimum
Disclosure Of Financial Risk Management Explanatory [Line Items]
Percentage of average difference in foreign currency denominated rights and foreign currency denominated obligations on unconsolidated basis	20.00%
Solvency Risk Ratio	9.00%
Basic Solvency Risk Ratio	4.50%
Banco de Bogota S.A. | Market risk
Disclosure Of Financial Risk Management Explanatory [Line Items]
Market risk weighted assets as a percentage of total risk weighted assets	9.90%	7.90%
Banco de Occidente S.A. | Market risk
Disclosure Of Financial Risk Management Explanatory [Line Items]
Market risk weighted assets as a percentage of total risk weighted assets	4.20%	5.60%
Banco Popular S.A. | Market risk
Disclosure Of Financial Risk Management Explanatory [Line Items]
Market risk weighted assets as a percentage of total risk weighted assets	6.40%	8.40%
Banco Commercial Av Villas S A | Market risk
Disclosure Of Financial Risk Management Explanatory [Line Items]
Market risk weighted assets as a percentage of total risk weighted assets	5.30%	3.80%
Corficolombiana S.A | Market risk
Disclosure Of Financial Risk Management Explanatory [Line Items]
Market risk weighted assets as a percentage of total risk weighted assets	16.00%	23.80%

ESTIMATION OF FAIR VALUE - Meas

ESTIMATION OF FAIR VALUE - Measurements of fair value of assets on a recurring basis (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
Assets	$ 278,832,589	$ 259,675,153
Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets	35,966,905	30,701,008
Recurring fair value measurement | Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,706,030	2,488,414
Recurring fair value measurement | Debt securities
Disclosure of fair value measurement of assets [line items]
Assets	26,292,207	22,729,991
Recurring fair value measurement | Debt securities | Financial assets at fair value through profit or loss, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	4,683,215	3,794,234
Recurring fair value measurement | Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	4,673,113	3,762,978
Recurring fair value measurement | Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	21,608,992	18,935,757
Recurring fair value measurement | Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,425,760	2,270,642
Recurring fair value measurement | Securities issued by the Colombian Government | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	11,643,942	10,525,774
Recurring fair value measurement | Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	175,794	128,546
Recurring fair value measurement | Securities issued by other of the Colombian Government entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	465,678	497,635
Recurring fair value measurement | Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	139,534	98,155
Recurring fair value measurement | Securities issued by foreign Governments | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	4,997,430	3,015,556
Recurring fair value measurement | Securities issued by central banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	13,966	12,914
Recurring fair value measurement | Securities issued by central banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	970,095	1,131,740
Recurring fair value measurement | Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,850,422	1,218,751
Recurring fair value measurement | Securities issued by other financial entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,054,925	3,308,480
Recurring fair value measurement | Securities issued by entities of the non-financial sector entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	33,942	29,122
Recurring fair value measurement | Securities issued by entities of the non-financial sector entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	34,840	209,940
Recurring fair value measurement | Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	33,695	4,848
Recurring fair value measurement | Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	10,102	31,256
Recurring fair value measurement | Other debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	442,082	246,632
Recurring fair value measurement | Equity securities
Disclosure of fair value measurement of assets [line items]
Assets	4,851,213	3,763,249
Recurring fair value measurement | Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,523,121	2,672,648
Recurring fair value measurement | Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,328,092	1,090,601
Recurring fair value measurement | Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	917,434	768,686
Recurring fair value measurement | Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	166,598	30,138
Recurring fair value measurement | Currency forward | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	765,166	617,799
Recurring fair value measurement | Currency forward | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	166,598	30,138
Recurring fair value measurement | Bond forward | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	253	71
Recurring fair value measurement | Interest rate | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	73,481	43,181
Recurring fair value measurement | Cross currency | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	34,682	48,546
Recurring fair value measurement | Currency options | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	43,852	59,089
Recurring fair value measurement | Financial assets in concession contracts | Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,706,030	2,488,414
Recurring fair value measurement | Non-financial assets
Disclosure of fair value measurement of assets [line items]
Assets	1,033,423	920,530
Recurring fair value measurement | Biological assets [member]
Disclosure of fair value measurement of assets [line items]
Assets	104,857	84,206
Recurring fair value measurement | Investment property [member]
Disclosure of fair value measurement of assets [line items]
Assets	928,566	836,324
Recurring fair value measurement | Level 1 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets	11,079,989	11,880,035
Recurring fair value measurement | Level 1 of fair value hierarchy | Debt securities
Disclosure of fair value measurement of assets [line items]
Assets	9,903,351	10,941,238
Recurring fair value measurement | Level 1 of fair value hierarchy | Debt securities | Financial assets at fair value through profit or loss, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,540,107	2,129,180
Recurring fair value measurement | Level 1 of fair value hierarchy | Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,540,107	2,129,180
Recurring fair value measurement | Level 1 of fair value hierarchy | Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	8,363,244	8,812,058
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,503,708	2,109,574
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by the Colombian Government | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	7,923,409	8,208,778
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets		19,606
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by other of the Colombian Government entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	191,994	232,312
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,220
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by foreign Governments | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	9,954	91,315
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	33,179
Recurring fair value measurement | Level 1 of fair value hierarchy | Securities issued by other financial entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	237,887	279,653
Recurring fair value measurement | Level 1 of fair value hierarchy | Equity securities
Disclosure of fair value measurement of assets [line items]
Assets	1,176,638	938,797
Recurring fair value measurement | Level 1 of fair value hierarchy | Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,679	3,060
Recurring fair value measurement | Level 1 of fair value hierarchy | Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,174,959	935,737
Recurring fair value measurement | Level 2 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets	20,555,062	14,836,300
Recurring fair value measurement | Level 2 of fair value hierarchy | Debt securities
Disclosure of fair value measurement of assets [line items]
Assets	16,378,754	11,775,020
Recurring fair value measurement | Level 2 of fair value hierarchy | Debt securities | Financial assets at fair value through profit or loss, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,133,006	1,651,321
Recurring fair value measurement | Level 2 of fair value hierarchy | Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,133,006	1,633,798
Recurring fair value measurement | Level 2 of fair value hierarchy | Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	13,245,748	10,123,699
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	922,052	161,068
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by the Colombian Government | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,720,533	2,316,996
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	175,794	108,940
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by other of the Colombian Government entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	273,684	265,323
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	136,314	98,155
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by foreign Governments | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	4,987,476	2,924,241
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by central banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	13,966	12,914
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by central banks | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	970,095	1,131,740
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	1,817,243	1,218,751
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by other financial entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,817,038	3,028,827
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by entities of the non-financial sector entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	33,942	29,122
Recurring fair value measurement | Level 2 of fair value hierarchy | Securities issued by entities of the non-financial sector entities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	34,840	209,940
Recurring fair value measurement | Level 2 of fair value hierarchy | Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	33,695	4,848
Recurring fair value measurement | Level 2 of fair value hierarchy | Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets		17,523
Recurring fair value measurement | Level 2 of fair value hierarchy | Other debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	442,082	246,632
Recurring fair value measurement | Level 2 of fair value hierarchy | Equity securities
Disclosure of fair value measurement of assets [line items]
Assets	3,092,276	2,264,139
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	3,046,048	2,212,915
Recurring fair value measurement | Level 2 of fair value hierarchy | Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Assets	46,228	51,224
Recurring fair value measurement | Level 2 of fair value hierarchy | Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	917,434	767,003
Recurring fair value measurement | Level 2 of fair value hierarchy | Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	166,598	30,138
Recurring fair value measurement | Level 2 of fair value hierarchy | Currency forward | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	765,166	616,116
Recurring fair value measurement | Level 2 of fair value hierarchy | Currency forward | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	166,598	30,138
Recurring fair value measurement | Level 2 of fair value hierarchy | Bond forward | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	253	71
Recurring fair value measurement | Level 2 of fair value hierarchy | Interest rate | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	73,481	43,181
Recurring fair value measurement | Level 2 of fair value hierarchy | Cross currency | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	34,682	48,546
Recurring fair value measurement | Level 2 of fair value hierarchy | Currency options | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	43,852	59,089
Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets	4,331,854	3,984,673
Recurring fair value measurement | Level 3 of fair value hierarchy | Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,706,030	2,488,414
Recurring fair value measurement | Level 3 of fair value hierarchy | Debt securities
Disclosure of fair value measurement of assets [line items]
Assets	10,102	13,733	$ 19,602	$ 27,377
Recurring fair value measurement | Level 3 of fair value hierarchy | Debt securities | Financial assets at fair value through profit or loss, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	10,102	13,733
Recurring fair value measurement | Level 3 of fair value hierarchy | Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	10,102	13,733
Recurring fair value measurement | Level 3 of fair value hierarchy | Equity securities
Disclosure of fair value measurement of assets [line items]
Assets	582,299	560,313	25,341
Recurring fair value measurement | Level 3 of fair value hierarchy | Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	475,394	456,673
Recurring fair value measurement | Level 3 of fair value hierarchy | Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Assets	106,905	103,640
Recurring fair value measurement | Level 3 of fair value hierarchy | Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets		1,683
Recurring fair value measurement | Level 3 of fair value hierarchy | Currency forward | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of fair value measurement of assets [line items]
Assets		1,683
Recurring fair value measurement | Level 3 of fair value hierarchy | Financial assets in concession contracts | Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of fair value measurement of assets [line items]
Assets	2,706,030	2,488,414
Recurring fair value measurement | Level 3 of fair value hierarchy | Non-financial assets
Disclosure of fair value measurement of assets [line items]
Assets	1,033,423	920,530
Recurring fair value measurement | Level 3 of fair value hierarchy | Biological assets [member]
Disclosure of fair value measurement of assets [line items]
Assets	104,857	84,206	66,139	48,002
Recurring fair value measurement | Level 3 of fair value hierarchy | Investment property [member]
Disclosure of fair value measurement of assets [line items]
Assets	$ 928,566	$ 836,324	$ 783,794	$ 610,188

ESTIMATION OF FAIR VALUE - Me_2

ESTIMATION OF FAIR VALUE - Measurements of fair value of liabilities on a recurring basis (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurement of liabilities [line items]
Liabilities	$ 245,484,320	$ 230,120,805
Recurring fair value measurement
Disclosure of fair value measurement of liabilities [line items]
Liabilities	1,056,736	1,006,844
Recurring fair value measurement | Trading derivatives | Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	962,438	811,305
Recurring fair value measurement | Trading derivatives | Currency forward | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	815,393	589,021
Recurring fair value measurement | Trading derivatives | Bond forward | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	574	2,730
Recurring fair value measurement | Trading derivatives | Bond futures | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	52	32
Recurring fair value measurement | Trading derivatives | Interest rate | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	64,500	32,380
Recurring fair value measurement | Trading derivatives | Cross currency | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	31,982	148,378
Recurring fair value measurement | Trading derivatives | Currency options | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	49,937	38,764
Recurring fair value measurement | Hedging derivative liabilities | Derivatives | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	94,298	195,539
Recurring fair value measurement | Hedging derivative liabilities | Currency forward | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	90,726	195,539
Recurring fair value measurement | Hedging derivative liabilities | Interest rate | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	3,572
Recurring fair value measurement | Level 1 of fair value hierarchy
Disclosure of fair value measurement of liabilities [line items]
Liabilities	52	32
Recurring fair value measurement | Level 1 of fair value hierarchy | Trading derivatives | Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	52	32
Recurring fair value measurement | Level 1 of fair value hierarchy | Trading derivatives | Bond futures | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	52	32
Recurring fair value measurement | Level 2 of fair value hierarchy
Disclosure of fair value measurement of liabilities [line items]
Liabilities	1,056,684	1,001,033
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	962,386	805,494
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Currency forward | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	815,393	583,242
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Bond forward | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	574	2,730
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Interest rate | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	64,500	32,380
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Cross currency | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	31,982	148,378
Recurring fair value measurement | Level 2 of fair value hierarchy | Trading derivatives | Currency options | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	49,937	38,764
Recurring fair value measurement | Level 2 of fair value hierarchy | Hedging derivative liabilities | Derivatives | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	94,298	195,539
Recurring fair value measurement | Level 2 of fair value hierarchy | Hedging derivative liabilities | Currency forward | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	90,726	195,539
Recurring fair value measurement | Level 2 of fair value hierarchy | Hedging derivative liabilities | Interest rate | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities	$ 3,572
Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of liabilities [line items]
Liabilities		5,779
Recurring fair value measurement | Level 3 of fair value hierarchy | Trading derivatives | Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities		5,779
Recurring fair value measurement | Level 3 of fair value hierarchy | Trading derivatives | Currency forward | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of fair value measurement of liabilities [line items]
Liabilities		$ 5,779

ESTIMATION OF FAIR VALUE - Me_3

ESTIMATION OF FAIR VALUE - Measurements at fair value on a non-recurring basis (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Estimations of Fair Value [Line Items]
Non-current assets held for sale	$ 206,193	$ 186,714
Non-recurring fair value measurement
Disclosure Of Estimations of Fair Value [Line Items]
Impaired collateralized loans	870,110	896,257
Non-current assets held for sale	206,193	186,714
Assets held for sale	1,076,303	1,082,971
Level 3 of fair value hierarchy | Non-recurring fair value measurement
Disclosure Of Estimations of Fair Value [Line Items]
Impaired collateralized loans	870,110	896,257
Non-current assets held for sale	206,193	186,714
Assets held for sale	$ 1,076,303	$ 1,082,971

ESTIMATION OF FAIR VALUE - Valu

ESTIMATION OF FAIR VALUE - Valuation of equity instruments Level 3 (Details) - Equity investments - Level 3 of fair value hierarchy $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)item
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Fair Value	$ 47,492
Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	6,195
Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (6,286)
Comparable multiples / Recent transaction price - EBITDA Number of times
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation by number of times	1
Decrease in variation by number of times | item	1
Comparable multiples / Recent transaction price - EBITDA Number of times | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 2,860
Comparable multiples / Recent transaction price - EBITDA Number of times | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (2,865)
Adjusted Net Asset Value -Most relevant variable in assets
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	10.00%
Decrease in variation (as a percent)	10.00%
Adjusted Net Asset Value -Most relevant variable in assets | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 331
Adjusted Net Asset Value -Most relevant variable in assets | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	(287)
Option one | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	303
Option one | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (270)
Option one | Later than five years [member]
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	1.00%
Decrease in variation (as a percent)	1.00%
Option two | Later than five years [member]
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	0.30%
Decrease in variation (as a percent)	0.30%
Option two | Later than five years [member] | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 220
Option two | Later than five years [member] | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (223)
Option one, income
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	1.00%
Decrease in variation (as a percent)	1.00%
Option one, income | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 858
Option one, income | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (1,017)
Option two, income
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	1.00%
Decrease in variation (as a percent)	1.00%
Option two, income | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 371
Option two, income | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (378)
Adjusted discounted cash flow - Discount rates
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	0.50%
Decrease in variation (as a percent)	0.50%
Adjusted discounted cash flow - Discount rates | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 604
Adjusted discounted cash flow - Discount rates | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (607)
Adjusted discounted cash flow - Discount interest rates
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Increase in variation (as a percent)	0.50%
Decrease in variation (as a percent)	0.50%
Adjusted discounted cash flow - Discount interest rates | Favorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ 648
Adjusted discounted cash flow - Discount interest rates | Unfavorable scenario
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Sensitivity analysis of investments	$ (639)

ESTIMATION OF FAIR VALUE - Sens

ESTIMATION OF FAIR VALUE - Sensitivity analysis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
WACC
Disclosure Of Estimations of Fair Value [Line Items]
+100 bps	$ (637,556)	$ (637,463)
-100 bps	979,942	979,778
Growth rate
Disclosure Of Estimations of Fair Value [Line Items]
+100 bps	550,652	550,567
-100 bps	$ (387,750)	$ (387,696)

ESTIMATION OF FAIR VALUE - Yiel

ESTIMATION OF FAIR VALUE - Yield per hectare of rubber crops (Details)	Dec. 31, 2019T
Year seven
Disclosure Of Estimations of Fair Value [Line Items]
Tons of rubber per hectare per year	0.60
Year Eight
Disclosure Of Estimations of Fair Value [Line Items]
Tons of rubber per hectare per year	0.90
Year Nine
Disclosure Of Estimations of Fair Value [Line Items]
Tons of rubber per hectare per year	1.40
Year 10 and other
Disclosure Of Estimations of Fair Value [Line Items]
Tons of rubber per hectare per year	1.90

ESTIMATION OF FAIR VALUE - Yi_2

ESTIMATION OF FAIR VALUE - Yield per hectare of palm crops (Details)	Dec. 31, 2019T
Weighted Average
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	18
Later than three years and not later than four years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	4
Later than four years and not later than five years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	10
Later than five years and not later than six years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	12
Later than six years and not later than seven years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	22
7 to 18
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	22
More than 18
Disclosure Of Estimations of Fair Value [Line Items]
Tons of fresh fruit per hectare	36

ESTIMATION OF FAIR VALUE - Extr

ESTIMATION OF FAIR VALUE - Extraction rate (Details)	12 Months Ended
	Dec. 31, 2019
Weighted Average
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
0 to 3
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	19.00%
Later than three years and not later than four years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
Later than four years and not later than five years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
Later than five years and not later than six years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
Later than six years and not later than seven years [member]
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
7 to 18
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	23.00%
More than 18
Disclosure Of Estimations of Fair Value [Line Items]
Extraction rate	21.00%

ESTIMATION OF FAIR VALUE - Se_2

ESTIMATION OF FAIR VALUE - Sensitivity analysis of Biological Assets at fair value (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)$ / T	Dec. 31, 2018COP ($)$ / T
Rubber Plantation | Crude palm oil, 5 percent higher [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	1,619	1,597
Value of the biological Effect on profits	$ 61,736	$ 43,609
Profits before taxes	$ 10,550	$ 4,241
Rubber Plantation | Crude palm oil, baseline [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	1,542	1,521
Value of the biological Effect on profits	$ 57,698	$ 41,533
Profits before taxes	$ 6,513	$ 2,164
Rubber Plantation | Crude palm oil, 5 percent lower [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	1,465	1,445
Value of the biological Effect on profits	$ 53,660	$ 39,456
Profits before taxes	$ 2,475	$ 88
African Palm Plantation | Crude palm oil, 5 percent higher [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	725	705
Value of the biological Effect on profits	$ 35,990	$ 31,272
Profits before taxes	$ 582	$ (7,792)
African Palm Plantation | Crude palm oil, baseline [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	690	671
Value of the biological Effect on profits	$ 32,509	$ 29,783
Profits before taxes	$ (2,900)	$ (9,281)
African Palm Plantation | Crude palm oil, 5 percent lower [member]
Disclosure of detailed information about biological assets [line items]
Reference price USD/ton | $ / T	656	638
Value of the biological Effect on profits	$ 29,027	$ 28,293
Profits before taxes	$ (6,382)	$ (10,770)

ESTIMATION OF FAIR VALUE - Tran

ESTIMATION OF FAIR VALUE - Transfers between level 1 and level 2 of the fair value hierarchy (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	$ 1
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Securities issued by other of the Colombian Government entities | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	1
Financial assets measured at fair value through other comprehensive income, category [member] | Level two to one
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	75,752
Financial assets measured at fair value through other comprehensive income, category [member] | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	748,688
Financial assets measured at fair value through other comprehensive income, category [member] | Debt securities | Level two to one
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held		$ 246,870
Financial assets measured at fair value through other comprehensive income, category [member] | Debt securities | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held		203,094
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by the Colombian Government | Level two to one
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	72,451	17,668
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by the Colombian Government | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	591,093	14,081
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by other of the Colombian Government entities | Level two to one
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held		229,202
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by other of the Colombian Government entities | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	38,324
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by other financial entities | Level two to one
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	3,301
Financial assets measured at fair value through other comprehensive income, category [member] | Securities issued by other financial entities | Level one to two
Disclosure Of Estimations of Fair Value [Line Items]
Debt instruments held	$ 119,271	$ 189,013

ESTIMATION OF FAIR VALUE - Fair

ESTIMATION OF FAIR VALUE - Fair value of financial assets recognized at amortized cost (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Certain Financial Assets At Amortised Cost Held To Maturity Investments And Loans And Receivables Category [Member]
Disclosure of financial assets [line items]
Financial assets at fair value	186,339,766	179,213,154
Certain Financial Assets At Amortised Cost Held To Maturity Investments And Loans And Receivables Category [Member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	176,996,179	171,658,270
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Financial assets at amortised cost, category [member] | Investment securities and loan portfolio
Disclosure of financial assets [line items]
Financial assets at fair value	183,308,411	176,228,181
Financial assets at amortised cost, category [member] | Investment securities and loan portfolio | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	173,942,317	168,685,654
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost
Disclosure of financial assets [line items]
Financial assets at fair value	3,031,355	2,984,973
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	$ 3,053,862	$ 2,972,616

ESTIMATION OF FAIR VALUE - Fa_2

ESTIMATION OF FAIR VALUE - Fair value of financial liabilities recognized at amortized cost (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Customer deposits
Disclosure of financial liabilities [line items]
Financial liabilities	175,491,421	164,359,451
Financial obligations
Disclosure of financial liabilities [line items]
Financial liabilities	54,844,576	51,211,990
Financial liabilities at amortised cost, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	230,335,997	215,571,441
Financial liabilities at fair value	232,427,284	216,494,271
Financial liabilities at amortised cost, category [member] | Customer deposits
Disclosure of financial liabilities [line items]
Financial liabilities	175,491,421	164,359,451
Financial liabilities at fair value	176,310,606	164,682,493
Financial liabilities at amortised cost, category [member] | Financial obligations
Disclosure of financial liabilities [line items]
Financial liabilities	54,844,576	51,211,990
Financial liabilities at fair value	$ 56,116,678	$ 51,811,778

ESTIMATION OF FAIR VALUE - Reco

ESTIMATION OF FAIR VALUE - Reconciliation Level 3 of the fair value hierarchy (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	$ 259,675,153
Assets at the end of the period	278,832,589	$ 259,675,153
Banco de Bogota S.A.
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	163,302,510
Assets at the end of the period	175,019,580	163,302,510
Banco Popular S.A.
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	24,648,668
Assets at the end of the period	25,117,577	24,648,668
Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	30,701,008
Assets at the end of the period	35,966,905	30,701,008
Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	3,984,673
Assets at the end of the period	4,331,854	3,984,673
Financial Assets In Concession [Member] | Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	2,488,414	2,282,611	$ 2,072,674
Valuation adjustment with an effect on income	217,616	205,803	209,937
Assets at the end of the period	2,706,030	2,488,414	2,282,611
Debt securities | Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	22,729,991
Assets at the end of the period	26,292,207	22,729,991
Debt securities | Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	13,733	19,602	27,377
Valuation adjustment with an effect on income	(3,018)	(5,119)	765
Valuation adjustments with an effect on OCI			(8,540)
Sales/redemptions	(613)	(750)
Assets at the end of the period	10,102	13,733	19,602
Equity securities | Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	3,763,249
Assets at the end of the period	4,851,213	3,763,249
Equity securities | Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	560,313	25,341
Adoption IFRS 9		102,214
Valuation adjustment with an effect on income	18,721	9,207
Valuation adjustments with an effect on OCI	3,101	1,426
Reclassification		25,989	25,341
Additions	238	396,136
Sales/redemptions	(74)
Assets at the end of the period	582,299	560,313	25,341
Equity securities | Recurring fair value measurement | Level 3 of fair value hierarchy | Banco de Bogota S.A.
Disclosure of fair value measurement of assets [line items]
Additions	330,350
Equity securities | Recurring fair value measurement | Level 3 of fair value hierarchy | Banco Popular S.A.
Disclosure of fair value measurement of assets [line items]
Additions	24,222
Equity securities | Recurring fair value measurement | Level 3 of fair value hierarchy | Alpopular S.A.
Disclosure of fair value measurement of assets [line items]
Additions	41,070
Equity securities | Recurring fair value measurement | Level 3 of fair value hierarchy | Fiduciaria Popular S.A.
Disclosure of fair value measurement of assets [line items]
Additions	494
Biological assets [member] | Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	84,206
Assets at the end of the period	104,857	84,206
Biological assets [member] | Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	84,206	66,139	48,002
Valuation adjustment with an effect on income	18,914	20,606	13,503
Reclassification		(96)
Additions	20,559	20,900	24,409
Sales/redemptions	(18,822)	(23,343)	(19,775)
Assets at the end of the period	104,857	84,206	66,139
Investment property [member] | Recurring fair value measurement
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	836,324
Assets at the end of the period	928,566	836,324
Investment property [member] | Recurring fair value measurement | Level 3 of fair value hierarchy
Disclosure of fair value measurement of assets [line items]
Assets at the beginning of the period	836,324	783,794	610,188
Valuation adjustment with an effect on income	19,597	39,415	46,675
Valuation adjustments with an effect on OCI	5,288
Transfers to non-current assets held for sale	21,722	19,719	101,469
Reclassification	(2,078)	10,780	(30,143)
Additions	116,702	61,300	84,036
Sales/redemptions	(68,989)	(78,684)	(28,431)
Assets at the end of the period	$ 928,566	$ 836,324	$ 783,794

ESTIMATION OF FAIR VALUE - Text

ESTIMATION OF FAIR VALUE - Textual (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)$ / T	Dec. 31, 2018COP ($)	Dec. 31, 2019	Dec. 31, 2019$ / T	Dec. 31, 2019COP ($)
Disclosure Of Estimations of Fair Value [Line Items]
Range of growth rate	1.00%	3.00%
Price of natural rubber	0.47			1,542
Price of african palm per ton | $ / T				690.39
Transfers out of fair values between levels	$ 0	$ 0
Transfers in of fair values between levels	$ 0	$ 0
Weighted average cost of capital, measurement input [member]
Disclosure Of Estimations of Fair Value [Line Items]
Significant unobservable input, assets		0.0909	0.0864
Service concession arrangements
Disclosure Of Estimations of Fair Value [Line Items]
Financial assets at fair value through profit or loss		$ 2,488,414			$ 2,706,030
Global Markets database
Disclosure Of Estimations of Fair Value [Line Items]
Cost of equity	11.98%	16.75%
Cost of Debt	6.64%	6.29%
Weighted average cost of capital	10.79%	10.74%
Agriculture
Disclosure Of Estimations of Fair Value [Line Items]
Cost of equity	9.77%	16.75%
Cost of Debt	6.64%	6.29%
Weighted average cost of capital	10.79%	10.74%

CLASSIFICATION OF FINANCIAL A_3

CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES - Financial assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Investment securities
Disclosure of financial assets [line items]
Financial assets	26,000,311	23,030,159
Investment securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	26,001,048	23,030,230
Trade receivables / other accounts receivable
Disclosure of financial assets [line items]
Financial assets	11,702,301	9,300,643
Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	11,988,764	9,557,534
Trade receivables / other accounts receivable | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Trade receivables / other accounts receivable | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Loan portfolio | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	182,128,114	176,881,841	$ 166,372,717
Loan portfolio | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	182,128,114	176,881,841
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Other accounts receivable at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Other accounts receivable at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Other accounts receivable FVTPL | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Other accounts receivable FVTPL | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Cash and cash equivalents
Disclosure of financial assets [line items]
Financial assets	30,117,236	28,401,283
Cash and cash equivalents | Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	30,117,236	28,401,283
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Investment securities | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Trading equity securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	3,523,121	2,672,648
Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	3,523,121	2,672,648
Equity investments | Investment securities | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Derivatives
Disclosure of financial assets [line items]
Financial assets	1,084,032	798,824
Derivatives | Trading securities
Disclosure of financial assets [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	917,434	768,686
Derivatives | Hedging instruments [member]
Disclosure of financial assets [line items]
Financial assets	166,598	30,138
Derivatives | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	$ 166,598	$ 30,138

CLASSIFICATION OF FINANCIAL A_4

CLASSIFICATION OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES - Financial liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	1,056,736	1,006,844
Financial liabilities at amortised cost, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	230,335,997	215,571,441
Customer deposits
Disclosure of financial liabilities [line items]
Financial liabilities	175,491,421	164,359,451
Customer deposits | Financial liabilities at amortised cost, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	175,491,421	164,359,451
Financial obligations
Disclosure of financial liabilities [line items]
Financial liabilities	54,844,576	51,211,990
Financial obligations | Financial liabilities at amortised cost, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	54,844,576	51,211,990
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Hedging derivative liabilities
Disclosure of financial liabilities [line items]
Financial liabilities	94,298	195,539
Derivatives | Hedging derivative liabilities | Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	$ 94,298	$ 195,539

CASH AND CASH EQUIVALENTS (Deta

CASH AND CASH EQUIVALENTS (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of cash and cash equivalents [Line Items]
Total cash and cash equivalents	$ 30,117,236	$ 28,401,283	$ 22,336,838	$ 22,193,004
Colombia, Pesos
Disclosure of cash and cash equivalents [Line Items]
Cash	4,466,144	4,489,637
Deposits in the Colombian central bank	4,755,515	3,794,412
Demand deposits in banks and other financial entities	266,964	559,181
Clearing houses	1,248	3,428
Investments in debt securities maturing in under three months	31,353	2,449
Cash held for specific purposes	50,078	254,280
Total cash and cash equivalents	9,571,302	9,103,387
Foreign currency
Disclosure of cash and cash equivalents [Line Items]
Cash	2,186,402	1,955,745
Demand deposits in banks and other financial entities	18,359,532	17,342,151
Total cash and cash equivalents	$ 20,545,934	$ 19,297,896

CASH AND CASH EQUIVALENTS - Tex

CASH AND CASH EQUIVALENTS - Textual (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of cash and cash equivalents [Abstract]
Cash reserves	$ 16,806,578	$ 15,710,055

TRADING ASSETS AND LIABILITIE_2

TRADING ASSETS AND LIABILITIES - Trading assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Debt securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Trading equity securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	3,523,121	2,672,648
Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	3,523,121	2,672,648
Derivatives
Disclosure of financial assets [line items]
Financial assets	1,084,032	798,824
Derivatives | Trading securities
Disclosure of financial assets [line items]
Financial assets	917,434	768,686
Derivatives | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	$ 917,434	$ 768,686

TRADING ASSETS AND LIABILITIE_3

TRADING ASSETS AND LIABILITIES - Trading liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Financial liabilities	$ 231,392,733	$ 216,578,285
Financial liabilities at fair value through profit or loss, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	1,056,736	1,006,844
Derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives
Disclosure of financial liabilities [line items]
Financial liabilities	962,438	811,305
Derivatives | Trading derivatives | Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]
Disclosure of financial liabilities [line items]
Financial liabilities	$ 962,438	$ 811,305

TRADING ASSETS AND LIABILITIE_4

TRADING ASSETS AND LIABILITIES - Total trading assets and liabilities, net (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
TRADING ASSETS AND LIABILITIES
Total trading assets and liabilities net	$ 8,151,230	$ 6,393,007

TRADING ASSETS AND LIABILITIE_5

TRADING ASSETS AND LIABILITIES - Investments in debt securities at fair value (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Debt securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	4,673,113	3,762,978
Securities issued by the Colombian Government | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	2,425,760	2,270,642
Securities issued by other of the Colombian Government entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	175,794	128,546
Securities issued by foreign Governments | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	139,534	98,155
Securities issued by central banks | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	13,966	12,914
Securities issued by other financial entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	1,850,422	1,218,751
Securities issued by entities of the non-financial sector entities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	33,942	29,122
Other debt securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	$ 33,695	$ 4,848

TRADING ASSETS AND LIABILITIE_6

TRADING ASSETS AND LIABILITIES - Investments in equity securities at fair value (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Trading securities
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	9,113,668	7,204,312
Restricted investment funds related to Concesionaria Nueva
Disclosure of financial assets [line items]
Financial assets at fair value through profit or loss classified as held equity securities	49,788
Restricted investment funds related to Concesionaria Vial Del Pacífico
Disclosure of financial assets [line items]
Financial assets at fair value through profit or loss classified as held equity securities	$ 22,444
Pension and severance funds
Disclosure of financial assets [line items]
Percentage of total assets of funds to be invested in mandatory severance and pension funds	1.00%
Trading equity securities | Trading securities
Disclosure of financial assets [line items]
Financial assets	$ 3,523,121	2,672,648
Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets	3,523,121	2,672,648
Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	3,436,491	2,617,012
Trading equity securities | Trading securities | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	86,630	55,636
Trading equity securities | Corporate stock | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	1,679	3,060
Trading equity securities | Corporate stock | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	34,796	32,733
Trading equity securities | Investment funds | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	1,587,495	1,162,260
Trading equity securities | Investment funds | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Foreign currency
Disclosure of financial assets [line items]
Financial assets	51,834	22,903
Trading equity securities | Pension and severance funds | Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Colombia, Pesos
Disclosure of financial assets [line items]
Financial assets	$ 1,847,317	$ 1,451,692

TRADING ASSETS AND LIABILITIE_7

TRADING ASSETS AND LIABILITIES - Trading derivative assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Derivative assets	$ 917,434	$ 768,686
Forward contracts
Disclosure of financial assets [line items]
Derivative assets	765,419	617,870
Forward contracts, Foreign currency to buy
Disclosure of financial assets [line items]
Derivative assets	30,706	599,987
Forward contracts, Foreign currency to sell
Disclosure of financial assets [line items]
Derivative assets	734,460	17,811
Forward contracts, Debt securities to buy
Disclosure of financial assets [line items]
Derivative assets	150	50
Forward contracts, Debt securities to sell
Disclosure of financial assets [line items]
Derivative assets	103	22
Swap
Disclosure of financial assets [line items]
Derivative assets	108,163	91,727
Cross currency
Disclosure of financial assets [line items]
Derivative assets	34,682	48,546
Interest rate
Disclosure of financial assets [line items]
Derivative assets	73,481	43,181
Options Contracts
Disclosure of financial assets [line items]
Derivative assets	43,852	59,089
Options Contracts, Foreign currency to buy
Disclosure of financial assets [line items]
Derivative assets	43,069	$ 59,089
Options Contracts, Foreign currency to sell
Disclosure of financial assets [line items]
Derivative assets	$ 783

TRADING ASSETS AND LIABILITIE_8

TRADING ASSETS AND LIABILITIES - Trading derivative liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Derivative liabilities	$ 962,438	$ 811,305
Forward contracts
Disclosure of financial liabilities [line items]
Derivative liabilities	815,968	591,751
Forward contracts, Foreign currency to buy
Disclosure of financial liabilities [line items]
Derivative liabilities	750,384	22,175
Forward contracts, Foreign currency to sell
Disclosure of financial liabilities [line items]
Derivative liabilities	65,009	566,846
Forward contracts, Debt securities to buy
Disclosure of financial liabilities [line items]
Derivative liabilities	277
Forward contracts, Debt securities to sell
Disclosure of financial liabilities [line items]
Derivative liabilities	298	2,730
Swap
Disclosure of financial liabilities [line items]
Derivative liabilities	96,481	180,758
Cross currency
Disclosure of financial liabilities [line items]
Derivative liabilities	31,808	148,378
Interest rate
Disclosure of financial liabilities [line items]
Derivative liabilities	64,673	32,380
Futures Contracts
Disclosure of financial liabilities [line items]
Derivative liabilities	52	32
Futures Contracts, Debt securities to buy
Disclosure of financial liabilities [line items]
Derivative liabilities	52	32
Options Contracts
Disclosure of financial liabilities [line items]
Derivative liabilities	49,937	38,764
Options Contracts, Foreign currency to buy
Disclosure of financial liabilities [line items]
Derivative liabilities	977
Options Contracts, Foreign currency to sell
Disclosure of financial liabilities [line items]
Derivative liabilities	$ 48,960	$ 38,764

TRADING ASSETS AND LIABILITIE_9

TRADING ASSETS AND LIABILITIES - Trading assets in debt securities pledged as collateral (Details) - Financial assets at fair value through profit or loss, classified as held for trading, category [member] - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 620,920	$ 1,139,782
Pledged in money market operations | Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	615,487	1,105,591
Pledged in money market operations | Securities issued by central banks
Disclosure of financial assets [line items]
Financial assets pledged as collateral	12,454	11,533
Pledged in money market operations | Securities issued by foreign Governments
Disclosure of financial assets [line items]
Financial assets pledged as collateral	53,900	51,055
Pledged in money market operations | Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Financial assets pledged as collateral	533,358	1,027,436
Pledged in money market operations | Securities issued by other financial entities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	15,775	15,567
Pledged as collateral to special entities such as CRCC, BR and BVC | Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	5,433	34,191
Pledged as collateral to special entities such as CRCC, BR and BVC | Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 5,433	$ 34,191

INVESTMENT SECURITIES - Balance

INVESTMENT SECURITIES - Balances of investment securities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,557,039)	(8,611,594)	$ (5,875,018)
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,472,997)	(8,453,149)
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(34,080)	(99,017)
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Investment securities
Disclosure of financial assets [line items]
Financial assets	26,000,311	23,030,159
Investment securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	26,001,048	23,030,230
Investment securities | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(737)	(71)
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(737)	(71)
Debt securities | Financial assets measured at fair value through other comprehensive income, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(34,080)	(99,017)	$ (71,708)
Debt securities | Investment securities | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Investment securities at amortized cost | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(737)	(71)
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets	21,608,992	18,935,757
Equity investments | Investment securities | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,328,092	$ 1,090,601

INVESTMENT SECURITIES - Investm

INVESTMENT SECURITIES - Investments in debt securities mandatorily at FVTPL (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	10,102	31,256
Other debt securities | Investment securities at fair value | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of financial assets [line items]
Financial assets	$ 10,102	$ 31,256

INVESTMENT SECURITIES - Inves_2

INVESTMENT SECURITIES - Investments in debt securities at fair value through OCI (Details) - Financial assets measured at fair value through other comprehensive income, category [member] - Investment securities at fair value - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt securities
Disclosure of financial assets [line items]
Cost	$ 21,255,393	$ 19,073,395
Unrealized Gain	389,129	83,040
Unrealized Losses	(35,530)	(220,678)
Fair Value	21,608,992	18,935,757
ECL	34,080	99,017
Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Cost	11,556,588	10,517,512
Unrealized Gain	118,746	65,724
Unrealized Losses	(31,392)	(57,462)
Fair Value	11,643,942	10,525,774
ECL	3,476	446
Securities issued by other of the Colombian Government entities
Disclosure of financial assets [line items]
Cost	448,710	496,936
Unrealized Gain	17,654	3,581
Unrealized Losses	(686)	(2,882)
Fair Value	465,678	497,635
ECL	482	422
Securities issued by foreign Governments
Disclosure of financial assets [line items]
Cost	4,777,822	3,042,595
Unrealized Gain	219,998	9,209
Unrealized Losses	(390)	(36,248)
Fair Value	4,997,430	3,015,556
ECL	25,132	14,457
Securities issued by central banks
Disclosure of financial assets [line items]
Cost	969,832	1,133,337
Unrealized Gain	2,354	1,058
Unrealized Losses	(2,091)	(2,655)
Fair Value	970,095	1,131,740
ECL	1,210	6,154
Securities issued by other financial entities
Disclosure of financial assets [line items]
Cost	3,033,397	3,352,299
Unrealized Gain	22,451	3,191
Unrealized Losses	(923)	(47,010)
Fair Value	3,054,925	3,308,480
ECL	2,850	8,623
Securities issued by entities of the non-financial sector entities
Disclosure of financial assets [line items]
Cost	34,325	278,838
Unrealized Gain	515	156
Unrealized Losses		(69,054)
Fair Value	34,840	209,940
ECL	38	68,657
Other debt securities
Disclosure of financial assets [line items]
Cost	434,719	251,878
Unrealized Gain	7,411	121
Unrealized Losses	(48)	(5,367)
Fair Value	442,082	246,632
ECL	$ 892	$ 258

INVESTMENT SECURITIES - Inves_3

INVESTMENT SECURITIES - Investments in debt securities at fair value through OCI (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
INVESTMENT SECURITIES
Redemptions or sales	$ 232,738	$ 43,574
ECL allowance	53,511	31,809
Total reclassified to profit or loss	$ 286,249	$ 75,383

INVESTMENT SECURITIES - Inves_4

INVESTMENT SECURITIES - Investments in debt securities at amortized cost (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Debt securities | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	29,346,069	25,702,607
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,053,862	2,972,616
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Not later than one month [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	693,328	671,047
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Later than one month and not later than three months [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	12,787	12,787
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | More than 3 months and no more than 1 year | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,347,747	2,287,755
Debt securities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | More than 1 year and no more than 5 years | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets		1,027
Securities issued by other of the Colombian Government entities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	3,029,802	2,931,172
Securities issued by foreign Governments | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	23,043	32,321
Securities issued by other financial entities | Financial assets at amortised cost, category [member] | Investment securities at amortized cost | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	$ 1,017	$ 9,123

INVESTMENT SECURITIES - Inves_5

INVESTMENT SECURITIES - Investments in equity securities at fair value through OCI (Details) - Investments in equity instruments designated at fair value through other comprehensive income [member] - Equity investments - Investment securities at fair value - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Cost	$ 606,038	$ 606,328
Unrealized Gain	726,493	487,594
Unrealized Losses	(4,439)	(3,321)
Fair Value	1,328,092	1,090,601
Colombia, Pesos
Disclosure of financial assets [line items]
Cost	593,573	593,611
Unrealized Gain	720,402	476,023
Unrealized Losses	(4,439)	(3,314)
Fair Value	1,309,536	1,066,320
Foreign currency
Disclosure of financial assets [line items]
Cost	12,465	12,717
Unrealized Gain	6,091	11,571
Unrealized Losses		(7)
Fair Value	$ 18,556	$ 24,281

INVESTMENT SECURITIES - Equity

INVESTMENT SECURITIES - Equity instruments through OCI - Tabular disclosure (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Investment securities at fair value
Disclosure of financial assets [line items]
Financial assets	22,947,186	20,057,614
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Financial assets	1,328,092	1,090,601
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Empresa de Energia de Bogota S.A. E.S.P.
Disclosure of financial assets [line items]
Financial assets	1,055,163	841,279
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Gas Natural S.A. ESP
Disclosure of financial assets [line items]
Financial assets	45,945	43,460
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Mineros S.A.
Disclosure of financial assets [line items]
Financial assets	72,638	45,706
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Bolsa de Valores de Colombia S.A.
Disclosure of financial assets [line items]
Financial assets	46,817	48,351
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Sociedades Portuarias
Disclosure of financial assets [line items]
Financial assets	29,840	28,897
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Master Card
Disclosure of financial assets [line items]
Financial assets		7,526
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Others
Disclosure of financial assets [line items]
Financial assets	$ 77,689	$ 75,382

INVESTMENT SECURITIES - Equit_2

INVESTMENT SECURITIES - Equity instruments through OCI - Additional information (Details) $ in Millions	6 Months Ended
	Dec. 31, 2019COP ($)
Equity investments | Investment securities at fair value | Investments in equity instruments designated at fair value through other comprehensive income [member] | Master Card
Disclosure of financial assets [line items]
Profit on sale of investment	$ 11,329

INVESTMENT SECURITIES - Equit_3

INVESTMENT SECURITIES - Equity instruments through OCI - Dividend income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
INVESTMENT SECURITIES
Dividend income	$ 84,686	$ 71,487	$ 50,439

INVESTMENT SECURITIES - Inves_6

INVESTMENT SECURITIES - Investment assets in debt securities through OCI pledged as collateral (Details) - Financial assets measured at fair value through other comprehensive income, category [member] - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 6,988,500	$ 4,198,537
Pledged in money market operations and pledged as collateral to special entities such as CRCC, BR and BVC | Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	6,662,608	4,029,816
Pledged in money market operations
Disclosure of financial assets [line items]
Financial assets pledged as collateral	6,223,448	3,558,237
Pledged in money market operations | Securities issued by foreign Governments
Disclosure of financial assets [line items]
Financial assets pledged as collateral		202,300
Pledged in money market operations | Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Financial assets pledged as collateral	6,116,290	3,195,548
Pledged in money market operations | Securities issued by other of the Colombian Government entities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	24,554	63,605
Pledged in money market operations | Securities issued by other financial entities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	42,068	57,182
Pledged in money market operations | Other debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	40,536	39,602
Pledged as collateral to special entities such as CRCC, BR and BVC
Disclosure of financial assets [line items]
Financial assets pledged as collateral	439,160	471,579
Pledged as collateral to special entities such as CRCC, BR and BVC | Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Financial assets pledged as collateral	439,160	471,579
Pledged as derivative collateral instruments
Disclosure of financial assets [line items]
Financial assets pledged as collateral	158,850	1,087
Pledged as derivative collateral instruments | Securities issued by the Colombian Government
Disclosure of financial assets [line items]
Financial assets pledged as collateral	158,850	1,087
Other collaterals
Disclosure of financial assets [line items]
Financial assets pledged as collateral	167,042	167,634
Other collaterals | Securities issued by central banks
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 167,042	$ 167,634

INVESTMENT SECURITIES - Inves_7

INVESTMENT SECURITIES - Investment assets in debt securities at amortized cost pledged as collateral (Details) - Financial assets at amortised cost, category [member] $ in Millions	Dec. 31, 2019COP ($)
Debt securities
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 323,954
Debt securities | Pledged in money market operations
Disclosure of financial assets [line items]
Financial assets pledged as collateral	323,954
Securities issued by the Colombian Government | Pledged in money market operations
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 323,954

HEDGE ACCOUNTING - Changes in t

HEDGE ACCOUNTING - Changes in the fluctuation (Details)	12 Months Ended
	Dec. 31, 2019item	Dec. 31, 2018item	Dec. 31, 2017item
Disclosure of detailed information about hedges [abstract]
Value of US 1	3,277.14	3,249.75	2,984
Variation	27.39	265.75	(16.71)

HEDGE ACCOUNTING - Net Investme

HEDGE ACCOUNTING - Net Investment in Foreign Operations (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	$ 95,329	$ 1,124,732	$ (47,197)
Exchange difference of financial liabilities	(47,942)	(576,881)	30,568
Exchange difference in forward contracts	(50,318)	$ (547,310)	$ 16,832
Net OCI account	(2,931)
Leasing Bogota Panama S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	101,556
Exchange difference of financial liabilities	(56,618)
Exchange difference in forward contracts	(46,383)
Net OCI account	(1,445)
Other subsidiaries and branches Banco de Bogota
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	3,638
Exchange difference in forward contracts	(3,935)
Net OCI account	(297)
Occidental Bank Barbados Ltd.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	1,142
Exchange difference of financial liabilities	(1,142)
Banco de Occidente Panama. S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	1,799
Exchange difference of financial liabilities	(1,799)
Sociedad Portuaria El Cayao S.A. E.S.P.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	(740)
Exchange difference of financial liabilities	740
Gases del Pacifico S.A.C.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	(92)
Exchange difference of financial liabilities	(1,096)
Net OCI account	(1,189)
Gas Natural de Lima y Callao S.A.C. - Calidda
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Translation adjustment of the investments	(11,973)
Exchange difference of financial liabilities	$ 11,973

HEDGE ACCOUNTING - Hedging oper

HEDGE ACCOUNTING - Hedging operations (Details) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)	Dec. 31, 2018COP ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019COP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018COP ($)
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Net OCI account	$ (2,931)
Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			$ 4,845,237		$ 4,204,704
Amount of hedge by financial liabilities in foreign currency			(2,297,371)		(2,169,060)
Amount of hedge by forward contracts			(2,529,403)		(2,017,464)
Cumulative translation adjustment of the investments				$ 4,431,333		$ 4,336,004
Exchange difference of financial liabilities	(1,723,792)	$ (1,675,850)
Exchange difference in forward contracts	(2,843,547)	(2,793,229)
Net OCI account	(136,006)	(133,075)
Leasing Bogota Panama S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Net OCI account	(1,445)
Leasing Bogota Panama S.A. | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			4,475,304		3,964,051
Amount of hedge by financial liabilities in foreign currency			(2,067,100)		(2,067,100)
Amount of hedge by forward contracts			(2,391,651)		(1,896,348)
Cumulative translation adjustment of the investments				4,230,937		4,129,381
Exchange difference of financial liabilities	(1,651,823)	(1,595,205)
Exchange difference in forward contracts	(2,716,214)	(2,669,831)
Net OCI account	(137,100)	(135,655)
Other subsidiaries and branches Banco de Bogota
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Net OCI account	(297)
Other subsidiaries and branches Banco de Bogota | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			139,662		126,380
Amount of hedge by forward contracts			(137,752)		(121,116)
Cumulative translation adjustment of the investments				129,616		125,978
Exchange difference in forward contracts	(127,333)	(123,398)
Net OCI account	2,283	2,580
Occidental Bank Barbados Ltd. | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			31,027		23,971
Amount of hedge by financial liabilities in foreign currency			(31,027)		(23,971)
Cumulative translation adjustment of the investments				25,748		24,606
Exchange difference of financial liabilities	(25,748)	(24,606)
Banco de Occidente Panama. S.A. | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			38,924		23,439
Amount of hedge by financial liabilities in foreign currency			(38,924)		(23,439)
Cumulative translation adjustment of the investments				37,376		35,577
Exchange difference of financial liabilities	(37,376)	(35,577)
Sociedad Portuaria El Cayao S.A. E.S.P. | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			26,214		31,214
Amount of hedge by financial liabilities in foreign currency			(26,214)		(31,214)
Cumulative translation adjustment of the investments				9,332		10,072
Exchange difference of financial liabilities	(9,332)	(10,072)
Gases del Pacifico S.A.C.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Net OCI account	(1,189)
Gases del Pacifico S.A.C. | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			2,500		4,000
Amount of hedge by financial liabilities in foreign currency			(2,500)		(4,000)
Cumulative translation adjustment of the investments				2,302		2,394
Exchange difference of financial liabilities	(3,490)	(2,394)
Net OCI account	(1,189)
Gas Natural de Lima y Callao S.A.C. - Calidda | Hedges of net investment in foreign operations
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Investment amount			131,606		31,649
Amount of hedge by financial liabilities in foreign currency			$ (131,606)		$ (19,336)
Cumulative translation adjustment of the investments				$ (3,977)		$ 7,996
Exchange difference of financial liabilities	$ 3,977	$ (7,996)

HEDGE ACCOUNTING - Cash flow he

HEDGE ACCOUNTING - Cash flow hedges (Details) $ in Millions	Dec. 31, 2019COP ($)item	Dec. 31, 2018COP ($)item
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Fair value	$ (166,598)	$ (30,138)
Cash flow hedges
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Income in U.S. dollars forecasted	$ 92,611	$ 120,265
Notional amount contracts forward U.S. dollars | item	92,611	120,265
% hedged	100.00%	100.00%
Fair value	$ (874)	$ (13,414)
# of contracts | item	158	1,470

HEDGE ACCOUNTING - Accumulated

HEDGE ACCOUNTING - Accumulated OCI (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Balance at the beginning of the year	$ 696,773
Balance at the end of the year	1,093,447	$ 696,773
Cash flow hedges
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Balance at the beginning of the year	(14,343)	5,447	$ 7,419
Changes in the fair value of the hedge forward contracts	(6,597)	(19,513)	24,874
Transferred to profit or loss	20,066	(276)	(26,846)
Balance at the end of the year	$ (874)	$ (14,343)	$ 5,447

HEDGE ACCOUNTING - Financial in

HEDGE ACCOUNTING - Financial instruments for hedging - assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Assets	$ 166,598	$ 30,138
Forward contracts
Disclosure of financial assets [line items]
Assets	166,598	30,138
Forward contracts, Foreign currency to buy
Disclosure of financial assets [line items]
Assets	14	28,367
Forward contracts, Foreign currency to sell
Disclosure of financial assets [line items]
Assets	$ 166,584	$ 1,771

HEDGE ACCOUNTING - Financial _2

HEDGE ACCOUNTING - Financial instruments for hedging - liabilities (Details) $ in Millions, $ in Millions	Dec. 31, 2019COP ($)	Dec. 31, 2018COP ($)	Nov. 02, 2016USD ($)
Disclosure of financial liabilities [line items]
Liabilities	$ 94,298	$ 195,539	$ 500
Forward contracts
Disclosure of financial liabilities [line items]
Liabilities	90,726	195,539
Forward contracts, Foreign currency to buy
Disclosure of financial liabilities [line items]
Liabilities	74,529	1,128
Forward contracts, Foreign currency to sell
Disclosure of financial liabilities [line items]
Liabilities	16,197	$ 194,411
Swap
Disclosure of financial liabilities [line items]
Liabilities	3,572
Interest rate
Disclosure of financial liabilities [line items]
Liabilities	$ 3,572

HEDGE ACCOUNTING - Textual (Det

HEDGE ACCOUNTING - Textual (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)	Dec. 31, 2018COP ($)	Dec. 31, 2017COP ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019COP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018COP ($)	Nov. 02, 2016USD ($)	Dec. 21, 2015USD ($)
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Other financial liabilities					$ 230	$ 102
Hedging instrument, liabilities					94,298		$ 195,539	$ 500
Hedging instrument, assets					$ 166,598		30,138
Reclassification adjustments on cash flow hedges, net of tax	$ 20,066	$ (276)	$ (26,846)
Intra group liability
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Gains (losses) on exchange differences of intra group liability	$ 73,708
Minimum
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Percentage of hedging effectiveness				80	80
Maximum
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Percentage of hedging effectiveness				125	125
Leasing Bogota Panama S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Hedging instrument, assets									$ 500
Hedges of net investment in foreign operations | Leasing Bogota Panama S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Bonds issued designated as hedging instruments				$ 2,067		$ 2,067
Cash flow hedges
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Hedging instrument, assets					$ 874		$ 13,414
Cash flow hedges | Banco de Bogota S.A.
Discloser Of Derivative Instruments and Hedge Accounting [Line Items]
Hedging instrument, liabilities								$ 500

LOANS - Credit Portfolio (Detai

LOANS - Credit Portfolio (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	$ 182,128,114	$ 176,881,841
Allowance for impairment losses	(8,185,797)	(8,196,187)
Net balance of loan portfolio	173,942,317	168,685,654
General purpose loans
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	68,949,019	65,923,472
Personal loans
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	36,998,746	33,791,703
Mortgages
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	18,661,389	17,279,362
Credit cards
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	16,891,296	15,550,920
Working capital loans
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	15,476,328	15,192,830
Commercial financial leases
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	10,348,941	9,858,952
Interbank and overnight funds
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	2,718,961	7,635,188
Automobile and vehicle loans
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	5,759,560	5,951,793
Loans funded by development banks
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	3,546,973	3,222,754
Housing leases
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	1,560,294	1,312,741
Overdrafts
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	553,765	481,946
Consumer financial leases
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	252,522	254,483
Loan portfolio
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	182,128,114	176,881,841
Commercial loans
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	91,306,719	92,550,025
Loans to consumers
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	59,587,929	55,200,581
Mortgages
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	18,661,389	17,279,362
Microcredit
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	410,320	425,697
Financial leasing
Disclosure of loans and receivables [Line Items]
Gross balance of loan portfolio	$ 12,161,757	$ 11,426,176

LOANS - Loan Portfolio by Matur

LOANS - Loan Portfolio by Maturity (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of loans and receivables [Line Items]
Loans and receivables	$ 182,128,114	$ 176,881,841
Loan portfolio
Disclosure of loans and receivables [Line Items]
Loans and receivables	182,128,114	176,881,841
Loan portfolio | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	63,904,306	64,777,016
Loan portfolio | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	33,421,703	32,831,433
Loan portfolio | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	26,282,691	25,520,914
Loan portfolio | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	58,519,414	53,752,478
Commercial loans
Disclosure of loans and receivables [Line Items]
Loans and receivables	91,306,719	92,550,025
Commercial loans | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	44,018,321	46,119,981
Commercial loans | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	18,223,388	18,810,647
Commercial loans | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	12,022,488	11,234,938
Commercial loans | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	17,042,522	16,384,459
Loans to consumers
Disclosure of loans and receivables [Line Items]
Loans and receivables	59,587,929	55,200,581
Loans to consumers | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	16,949,266	15,798,783
Loans to consumers | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	11,080,750	10,507,521
Loans to consumers | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	10,905,187	10,794,506
Loans to consumers | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	20,652,726	18,099,771
Mortgages
Disclosure of loans and receivables [Line Items]
Loans and receivables	18,661,389	17,279,362
Mortgages | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	325,908	287,133
Mortgages | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	583,177	504,727
Mortgages | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	734,982	676,978
Mortgages | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	17,017,322	15,810,524
Microcredit
Disclosure of loans and receivables [Line Items]
Loans and receivables	410,320	425,697
Microcredit | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	225,439	226,651
Microcredit | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	171,325	182,245
Microcredit | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	11,060	13,345
Microcredit | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	2,496	3,456
Financial leasing
Disclosure of loans and receivables [Line Items]
Loans and receivables	12,161,757	11,426,176
Financial leasing | Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	2,385,372	2,344,468
Financial leasing | Later than one year and not later than three years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	3,363,063	2,826,293
Financial leasing | Later than three years and not later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	2,608,974	2,801,147
Financial leasing | Later than five years [member]
Disclosure of loans and receivables [Line Items]
Loans and receivables	$ 3,804,348	$ 3,454,268

LOANS - Interest income by port

LOANS - Interest income by portfolio (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of loans and receivables [Line Items]
Total interest income	$ 18,491,167	$ 17,390,615	$ 17,899,967
Commercial loans
Disclosure of loans and receivables [Line Items]
Total interest income	6,810,728	6,571,717	7,327,525
Loans to consumers
Disclosure of loans and receivables [Line Items]
Total interest income	8,914,970	8,220,751	8,034,338
Mortgages
Disclosure of loans and receivables [Line Items]
Total interest income	1,524,379	1,329,713	1,183,573
Microcredit
Disclosure of loans and receivables [Line Items]
Total interest income	106,062	108,472	113,774
Financial leasing
Disclosure of loans and receivables [Line Items]
Total interest income	$ 1,135,028	$ 1,159,962	$ 1,240,757

LOANS - Financial Leasing (Deta

LOANS - Financial Leasing (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of loans and receivables [Abstract]
Total gross rent payments receivable	$ 18,103,115	$ 17,372,906
Less amounts representing running costs (such as taxes, maintenance, insurances ,etc.,)	(238)
Less amounts representing running costs (such as taxes, maintenance, insurances ,etc.,)		(286)
Plus Estimated residual amount of assets given for rental (without guarantee)	22,625	36,166
Gross investment in contracts of financial leasing	18,125,502	17,408,786
Less unrealized financial income	(5,963,745)	(5,982,610)
Net investment in contracts of financial leasing	12,161,757	11,426,176
Impairment of net investment in financial leasing	$ (501,825)	$ (471,007)

LOANS - Financial Leasing Contr

LOANS - Financial Leasing Contracts Receivable (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of loans and receivables [Line Items]
Gross investment in contracts of financial leasing	$ 18,125,502	$ 17,408,786
Net investment	12,161,757	11,426,176
Not later than one year [member]
Disclosure of loans and receivables [Line Items]
Gross investment in contracts of financial leasing	2,284,884	2,296,714
Net investment	1,582,650	1,579,195
More than 1 year and no more than 5 years
Disclosure of loans and receivables [Line Items]
Gross investment in contracts of financial leasing	8,013,317	6,799,539
Net investment	5,002,687	4,870,790
Later than five years [member]
Disclosure of loans and receivables [Line Items]
Gross investment in contracts of financial leasing	7,827,301	8,312,533
Net investment	$ 5,576,420	$ 4,976,191

LOANS - Textual (Details)

LOANS - Textual (Details)	12 Months Ended
	Dec. 31, 2019
Vehicles and computer equipment [Member]
Disclosure of loans and receivables [Line Items]
Borrowings, maturity	36 and 60
Machinery and equipments [Member]
Disclosure of loans and receivables [Line Items]
Borrowings, maturity	60 to 120
Housing leasing [Member]
Disclosure of loans and receivables [Line Items]
Borrowings, maturity	120 to 240

OTHER ACCOUNTS RECEIVABLE, NE_2

OTHER ACCOUNTS RECEIVABLE, NET - Net of Impairment Losses (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,557,039)	(8,611,594)	$ (5,875,018)
Trade receivables / other accounts receivable
Disclosure of financial assets [line items]
Financial assets	11,702,301	9,300,643
Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	11,988,764	9,557,534
Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(286,463)	(256,891)
Service concession arrangements
Disclosure of financial assets [line items]
Financial assets	7,031,916	5,118,683
Service concession arrangements | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	7,034,058	5,119,649
Service concession arrangements | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(2,142)	(966)
Other accounts receivable, excluding service concession arrangements [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	$ 4,954,706	$ 4,437,885

OTHER ACCOUNTS RECEIVABLE, NE_3

OTHER ACCOUNTS RECEIVABLE, NET - Contract Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,557,039)	(8,611,594)	$ (5,875,018)
Financial assets at fair value through profit or loss, category [member]
Disclosure of financial assets [line items]
Financial assets	11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets	224,581,946	215,324,860
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(8,472,997)	(8,453,149)
Trade receivables / other accounts receivable
Disclosure of financial assets [line items]
Financial assets	11,702,301	9,300,643
Trade receivables / other accounts receivable | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	11,988,764	9,557,534
Trade receivables / other accounts receivable | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(286,463)	(256,891)
Trade receivables / other accounts receivable | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Trade receivables / other accounts receivable | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	9,282,734	7,069,120
Trade receivables / other accounts receivable | Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(286,463)	(256,891)
Service concession arrangements
Disclosure of financial assets [line items]
Financial assets	7,031,916	5,118,683
Service concession arrangements | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	7,034,058	5,119,649
Service concession arrangements | Accumulated impairment
Disclosure of financial assets [line items]
Financial assets	(2,142)	(966)
Service concession arrangements | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	2,706,030	2,488,414
Service concession arrangements | Financial assets at amortised cost, category [member] | Gross carrying amount
Disclosure of financial assets [line items]
Financial assets	$ 4,328,028	$ 2,631,235

OTHER ACCOUNTS RECEIVABLE, NE_4

OTHER ACCOUNTS RECEIVABLE, NET - Measured at Amortization costs (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of other accounts receivables [Abstract]
Accounts receivables for goods and services sales in non-financial sector companies	$ 1,149,051	$ 962,364
Transfers In Process	431,595	330,941
Payment in advance	416,764	370,144
Debtors	377,510	406,079
Dormant customer deposits ICETEX	330,996	279,219
Credit card compensations and network compensation	329,267	372,702
Fees, services and advances	302,861	241,147
Commissions	220,298	244,669
Guarantee deposits in foreign currency transactions	188,493	377,751
Conditional contributions	166,750
Holding and parent establishment	147,617	136,551
Payment in advance to supplier's contract	110,028	151,313
Interest	61,579	52,948
Transfers to the National Treasury	60,487	61,046
Receivable from forward contracts	56,946	130,989
Other taxes	48,537	21,321
Storage Services	44,674	40,265
Quota shares retirement pensions	29,613	29,768
Accounts receivable to payment offices	24,857	69,996
Claims to insurance companies	18,670	14,142
Payment in advance for industry and trade taxes	11,615	9,563
Promissory sellers	9,495	20,785
Deductible taxes	6,542	10,234
Dividends	2,041	1,086
Others	408,420	102,862
Gross balance of other accounts receivable	4,954,706	4,437,885
Loss allowance	(284,321)	(255,925)
Total other accounts receivables, net	$ 4,670,385	$ 4,181,960

OTHER ACCOUNTS RECEIVABLE, NE_5

OTHER ACCOUNTS RECEIVABLE, NET - Others (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of other accounts receivables [Line Items]
Customers	$ 85,402
Value added taxes	82,553	$ 39,098
Joint operations	15,811
Transactions between ATM´s	15,241
Deficiency in savings accounts	12,398	6,864
Transitional account	9,631
Clearance of accounts	5,835
Chargebacks	5,078
Transaction fees	4,730	4,731
Joint ventures	4,489	5,172
Operative process	2,486	4,486
SIIF condonations	2,235	2,219
Company merger	1,503
ACH, PSE, CENIT fees		4,988
Credit card brands compensations		3,247
Others	161,028	32,057
Total	$ 408,420	$ 102,862

OTHER ACCOUNTS RECEIVABLE, NE_6

OTHER ACCOUNTS RECEIVABLE, NET - Textual (Details)	Dec. 31, 2019item
Disclosure of other accounts receivables [Abstract]
Dormant client deposits exceed value, real value units	322

NON-CURRENT ASSETS HELD FOR S_3

NON-CURRENT ASSETS HELD FOR SALE - Roll forward (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of non-current assets held for sale [Line Items]
Balance at the beginning of the year	$ 186,714
Recovery of impairment losses	8,055
Balance at year end balance	206,193	$ 186,714
Non-current assets held for sale [member]
Disclosure of non-current assets held for sale [Line Items]
Balance at the beginning of the year	186,714	101,382	$ 259,527
Additions	193,735	180,296	89,216
Assets sold, net	(147,760)	(52,164)	(78,784)
Changes in fair value	2,296	(25,136)	(37,818)
Reclassifications	(29,989)	(20,038)	(134,795)
Exchange gains in foreign currency	1,197	2,374	4,036
Balance at year end balance	206,193	186,714	101,382
Non-current assets held for sale [member] | Investment property [member]
Disclosure of non-current assets held for sale [Line Items]
Reclassifications	(21,722)	(19,718)	(108,924)
Non-current assets held for sale [member] | Investment
Disclosure of non-current assets held for sale [Line Items]
Reclassifications		(21)	(23,368)
Non-current assets held for sale [member] | Other assets [member]
Disclosure of non-current assets held for sale [Line Items]
Reclassifications	$ (14,980)	$ (299)	(2,503)
Non-current assets held for sale [member] | Property, plant and equipment [member]
Disclosure of non-current assets held for sale [Line Items]
Reclassifications			$ 6,713

NON-CURRENT ASSETS HELD FOR S_4

NON-CURRENT ASSETS HELD FOR SALE - Foreclosed Assets, Leasing Agreements, Other (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	$ 206,193	$ 186,714
Foreclosed assets
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	184,614	141,924
Foreclosed assets | Movable Property
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	4,079	19,733
Foreclosed assets | Residential Real Estates
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	34,162	33,622
Foreclosed assets | Other real estate
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	146,373	88,569
Assets Received From Leasing Agreements [Member]
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	10,869	41,033
Assets Received From Leasing Agreements [Member] | Machinery
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	3,777	14,989
Assets Received From Leasing Agreements [Member] | Vehicles
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	104	984
Assets Received From Leasing Agreements [Member] | Real estate
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	6,988	25,060
Other Non-Current Assets Held For Sale [Member]
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	10,710	3,757
Other Non-Current Assets Held For Sale [Member] | Land
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	1,225
Other Non-Current Assets Held For Sale [Member] | Real estate
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	9,037	3,517
Other Non-Current Assets Held For Sale [Member] | Other property, plant and equipment
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	448	240
Non-current assets held for sale [member]
Disclosure of non-current assets held for sale [Line Items]
Non-current assets or disposal groups classified as held for sale	$ 206,193	$ 186,714	$ 101,382	$ 259,527

NON-CURRENT ASSETS HELD FOR S_5

NON-CURRENT ASSETS HELD FOR SALE - Associated Liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of non-current assets held for sale [Line Items]
Liabilities included in disposal groups classified as held for sale	$ 54,834	$ 15,876
Commercial accounts payable
Disclosure of non-current assets held for sale [Line Items]
Liabilities included in disposal groups classified as held for sale	$ 54,834	$ 15,876

INVESTMENTS IN ASSOCIATES AND_3

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Tabular disclosure (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of investments in associates and joint ventures [Abstract]
Associates	$ 985,497	$ 975,032
Joint ventures	2,465	7,711
Total	$ 987,962	$ 982,743

INVESTMENTS IN ASSOCIATES AND_4

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Voting Right Percentage (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of associates [line items]
Book value	$ 985,497	$ 975,032
Gas natural de lima y callao s.a. calidda s.a [Member]
Disclosure of associates [line items]
Ownership interest	40.00%	40.00%
Book value	$ 435,359	$ 410,984
Gases del Caribe S.A. E.S.P. [Member]
Disclosure of associates [line items]
Ownership interest	31.00%	31.00%
Book value	$ 268,234	$ 269,185
Credibanco S.A. [Member]
Disclosure of associates [line items]
Ownership interest	25.00%	25.00%
Book value	$ 200,953	$ 195,157
Redeban Multicolor S.A. [Member]
Disclosure of associates [line items]
Ownership interest	20.00%	20.00%
Book value	$ 22,825	$ 20,508
A.C.H Colombia S.A. [Member]
Disclosure of associates [line items]
Ownership interest	34.00%	34.00%
Book value	$ 17,187	$ 14,010
Aerocali S.A. [Member]
Disclosure of associates [line items]
Ownership interest	50.00%	50.00%
Book value	$ 12,648	$ 19,157
Colombiana de Extrusion S.A. Extrucol
Disclosure of associates [line items]
Ownership interest	30.00%	30.00%
Book value	$ 12,539	$ 11,327
Energia Eficiente S.A. [Member]
Disclosure of associates [line items]
Ownership interest	39.00%	39.00%
Book value	$ 10,119	$ 8,252
Servicios de Identidad Digital S.A.S
Disclosure of associates [line items]
Ownership interest	33.00%
Book value	$ 2,352
Metrex S.A. [Member]
Disclosure of associates [line items]
Ownership interest	18.00%	18.00%
Book value	$ 2,080	$ 2,054
Concentra Inteligencia en Energia S.A.S.
Disclosure of associates [line items]
Ownership interest	29.00%	24.00%
Book value	$ 692	$ 601
ADL Digital Lab SAS
Disclosure of associates [line items]
Ownership interest	34.00%
Book value	$ 404
C.I. Acepalma S.A. [Member]
Disclosure of associates [line items]
Ownership interest	0.20%	11.00%
Book value	$ 105	$ 5,458
Concesionaria Tibitoc S.A. [Member]
Disclosure of associates [line items]
Ownership interest		33.00%
Book value		$ 18,339

INVESTMENTS IN ASSOCIATES AND_5

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Ownership Interest and Book Value (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of joint ventures [line items]
Book value	$ 2,465	$ 7,711
Cfc Sk El Dorado Latam Management Company Ltd.
Disclosure of joint ventures [line items]
Ownership interest	50.00%	50.00%
Book value	$ 1,911	$ 6,764
Cfc Sk El Dorado Latam Capital Partners, Ltd.
Disclosure of joint ventures [line items]
Ownership interest	50.00%	50.00%
Book value	$ 356	$ 549
Cfc Sk El Dorado Latam Advisory Company S.A.S.
Disclosure of joint ventures [line items]
Ownership interest	50.00%	50.00%
Book value	$ 198	$ 398
Concesionaria Ruta Del Sol S.A.S. [Member]
Disclosure of joint ventures [line items]
Ownership interest	33.00%	33.00%
Investment provisioned (as a percent)		100.00%
Investment provisioned		$ 111,783

INVESTMENTS IN ASSOCIATES AND_6

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Roll forward of investment in associates (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of associates [line items]
Balance at the beginning of the year	$ 975,032
Participation in Other Comprehensive Income	701,730	$ (209,751)	$ 75,370
Year-end balance	985,497	975,032
Associates [member]
Disclosure of associates [line items]
Balance at the beginning of the year	975,032	925,823	865,410
Change in accounting policy		(3,691)
Acquisitions	2,789
Participation in the profit or loss of the period	231,693	195,991	170,349
Participation in Other Comprehensive Income	(9,061)	22,400	1,135
Dividends received	(192,602)	(171,899)	(107,812)
Sale of investments	(5,125)
Entity Liquidation	(4,956)
Allowance for Impairment	(225)
Exchange difference	(12,048)	6,408	(3,259)
Year-end balance	$ 985,497	$ 975,032	$ 925,823

INVESTMENTS IN ASSOCIATES AND_7

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Roll forward of investment in joint ventures (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [line items]
Balance at the beginning of the year	$ 7,711
Participation in Other Comprehensive Income	701,730	$ (209,751)	$ 75,370
Year-end balance	2,465	7,711
Joint ventures [member]
Disclosure of joint ventures [line items]
Balance at the beginning of the year	7,711	117,191	281,237
Participation in the profit or loss of the period	(2,067)	1,724	1,615
Participation in Other Comprehensive Income			(7)
Dividends received	(3,310)
Capitalization			87
Allowance for Impairment		(111,783)	(140,691)
Transfers / reclassification			(12,405)
Exchange difference	131	579
Balance acquired in business combination			(12,645)
Year-end balance	$ 2,465	$ 7,711	$ 117,191

INVESTMENTS IN ASSOCIATES AND_8

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Financial information of associates (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of associates [line items]
Assets	$ 278,832,589	$ 259,675,153
Liabilities	245,484,320	230,120,805
Equity	33,348,269	29,554,348	$ 25,871,227	$ 24,659,222
Income	37,055,156	34,083,225	31,659,852
Expenses	31,689,702	28,898,674	28,497,419
Net income for the year	5,365,454	5,184,551	$ 3,162,433
Associates [member]
Disclosure of associates [line items]
Assets	7,731,480	6,705,431
Liabilities	5,116,084	4,173,778
Equity	2,615,396	2,531,653
Income	6,032,828	5,714,806
Expenses	5,354,015	5,136,677
Net income for the year	678,813	578,129
A.C.H Colombia S.A. [Member]
Disclosure of associates [line items]
Assets	86,801	78,878
Liabilities	35,964	37,437
Equity	50,837	41,441
Income	103,702	83,612
Expenses	72,534	64,067
Net income for the year	31,168	19,545
Redeban Multicolor S.A. [Member]
Disclosure of associates [line items]
Assets	231,453	213,133
Liabilities	118,474	111,626
Equity	112,979	101,507
Income	254,615	214,360
Expenses	238,215	201,980
Net income for the year	16,400	12,380
Credibanco S.A. [Member]
Disclosure of associates [line items]
Assets	373,818	263,521
Liabilities	176,118	93,951
Equity	197,700	169,570
Income	282,888	240,489
Expenses	238,143	219,166
Net income for the year	44,745	21,323
Aerocali S.A. [Member]
Disclosure of associates [line items]
Assets	82,107	104,506
Liabilities	56,812	66,191
Equity	25,295	38,315
Income	155,643	214,805
Expenses	136,736	205,171
Net income for the year	18,907	9,634
Colombiana de Extrusion S.A. Extrucol
Disclosure of associates [line items]
Assets	77,724	86,398
Liabilities	35,929	48,642
Equity	41,795	37,756
Income	108,772	113,749
Expenses	101,872	108,781
Net income for the year	6,900	4,968
Concesionaria Tibitoc S.A. [Member]
Disclosure of associates [line items]
Assets	56,223	57,420
Liabilities	281	2,403
Equity	55,942	55,017
Income	2,459	20,468
Expenses	1,313	15,964
Net income for the year	1,146	4,504
Metrex S.A. [Member]
Disclosure of associates [line items]
Assets	33,408	31,482
Liabilities	21,852	19,938
Equity	11,556	11,544
Income	30,561	43,468
Expenses	28,689	41,254
Net income for the year	1,872	2,214
C.I. Acepalma S.A. [Member]
Disclosure of associates [line items]
Assets	240,527	281,161
Liabilities	193,974	232,843
Equity	46,553	48,318
Income	528,203	723,908
Expenses	520,083	717,637
Net income for the year	8,120	6,271
Gases del Caribe S.A. [Member]
Disclosure of associates [line items]
Assets	2,875,918	2,585,669
Liabilities	1,993,317	1,608,107
Equity	882,601	977,562
Income	2,040,033	1,938,431
Expenses	1,761,015	1,646,970
Net income for the year	279,018	291,461
Calidda S.A. [Member]
Disclosure of associates [line items]
Assets	3,586,674	2,943,477
Liabilities	2,432,743	1,916,017
Equity	1,153,931	1,027,460
Income	2,216,510	2,007,368
Expenses	1,951,117	1,804,907
Net income for the year	265,393	202,461
Concentra Inteligencia en Energia S.A.S.
Disclosure of associates [line items]
Assets	2,829	2,560
Liabilities	400	435
Equity	2,429	2,125
Income	2,006	1,234
Expenses	1,628	1,292
Net income for the year	378	(58)
Energia Eficiente S.A. [Member]
Disclosure of associates [line items]
Assets	74,985	57,226
Liabilities	49,451	36,188
Equity	25,534	21,038
Income	307,435	112,914
Expenses	302,606	109,488
Net income for the year	4,829	$ 3,426
Servicios de Identidad Digital S.A.S
Disclosure of associates [line items]
Assets	7,824
Liabilities	769
Equity	7,055
Income	1
Expenses	53
Net income for the year	(52)
ADL Digital Lab SAS
Disclosure of associates [line items]
Assets	1,189
Equity	1,189
Expenses	11
Net income for the year	$ (11)

INVESTMENTS IN ASSOCIATES AND_9

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Financial information of joint ventures (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of joint ventures [line items]
Assets	$ 278,832,589	$ 259,675,153
Liabilities	245,484,320	230,120,805
Equity	33,348,269	29,554,348	$ 25,871,227	$ 24,659,222
Income	37,055,156	34,083,225	31,659,852
Expenses	31,689,702	28,898,674	28,497,419
Net income for the year	5,365,454	5,184,551	$ 3,162,433
Joint ventures [member]
Disclosure of joint ventures [line items]
Assets	5,249	15,775
Liabilities	321	352
Equity	4,928	15,423
Income	1,104	5,786
Expenses	5,239	2,298
Net income for the year	(4,135)	3,488
Cfc Sk El Dorado Latam Advisory Company S.A.S.
Disclosure of joint ventures [line items]
Assets	662	1,077
Liabilities	267	281
Equity	395	796
Income	1,301	1,939
Expenses	1,701	1,762
Net income for the year	(400)	177
Cfc Sk El Dorado Latam Management Company Ltd.
Disclosure of joint ventures [line items]
Assets	3,851	13,573
Liabilities	28	45
Equity	3,823	13,528
Income	1	3,697
Expenses	3,329	410
Net income for the year	(3,328)	3,287
Cfc Sk El Dorado Latam Capital Partners, Ltd.
Disclosure of joint ventures [line items]
Assets	736	1,125
Liabilities	26	26
Equity	710	1,099
Income		150
Income, other	(198)
Expenses	209	126
Net income for the year	$ (407)	$ 24

INVESTMENTS IN ASSOCIATES AN_10

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Textual (Details) - COP ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of investments in associates and joint ventures [Line Items]
Investments in joint ventures accounted for using equity method		$ 2,465	$ 7,711
Concesionaria Ruta del Sol [Member]
Disclosure of investments in associates and joint ventures [Line Items]
Proportion of ownership interest in joint venture		100.00%		33.00%
Allowance for Impairment				$ 140,691
Investments in joint ventures				$ 111,783
Estudios y Proyectos del Sol S.A.S.
Disclosure of investments in associates and joint ventures [Line Items]
Proportion of ownership interest in subsidiary		38.63%
Estudios y Proyectos del Sol S.A.S. | Corporacion Financiera Colombiana S.A.
Disclosure of investments in associates and joint ventures [Line Items]
Proportion of ownership interest in subsidiary			100.00%
C.I. Acepalma S.A. [Member]
Disclosure of investments in associates and joint ventures [Line Items]
Percentage of shares held for sale sold	98.00%

TANGIBLE ASSETS - Carrying Valu

TANGIBLE ASSETS - Carrying Value (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ 6,588,483
Property, plant and equipment	8,950,411	$ 6,588,483
Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	9,668,799	9,355,172	$ 9,054,173
Effects of amendments in accounting policies by rights of use	2,274,285
Purchases or capitalized expenses	1,003,782	631,509	582,197
Withdrawals / Sales	(455,463)	(492,869)	(425,279)
Changes in fair value	38,511	60,021	60,178
Revaluation of investment properties	5,288
Transfers to/from non-current assets held for sale	13,940	21,054	102,056
Effect of movement in exchange rates	104,947	120,766	(65,404)
Reclassifications	134,936	(26,854)	47,251
Property, plant and equipment	12,789,025	9,668,799	9,355,172
Gross carrying amount | Pizano and Banco Corficolombiana Panama [member]
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales		(114,099)
Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,074,412)	(2,693,773)	(2,492,071)
Effects of amendments in accounting policies by rights of use	(56,905)
Withdrawals / Sales	240,213	165,922	276,840
Transfers to/from non-current assets held for sale	1,069
Effect of movement in exchange rates	(25,178)	(63,058)	20,881
Reclassifications	(79,447)	(4,897)	(35,531)
Depreciation, property, plant and equipment	(839,105)	(478,606)	(463,892)
Property, plant and equipment	(3,833,765)	(3,074,412)	(2,693,773)
Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(5,904)	(7,393)	(2,587)
Year impairment charge			(4,806)
Withdrawals / Year impairment charge	1,055	1,489
Property, plant and equipment	(4,849)	(5,904)	(7,393)
Investment property [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	836,324
Property, plant and equipment	928,566	836,324
Investment property [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	836,324	783,794	610,188
Purchases or capitalized expenses	116,702	61,300	84,036
Withdrawals / Sales	(68,989)	(78,684)	(28,431)
Changes in fair value	19,597	39,415	46,675
Revaluation of investment properties	5,288
Transfers to/from non-current assets held for sale	21,722	19,719	101,469
Reclassifications	(2,078)	10,780	(30,143)
Property, plant and equipment	928,566	836,324	783,794
Investment property [member] | Accumulated impairment | Pizano and Banco Corficolombiana Panama [member]
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales		3,064
Biological assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	84,206
Property, plant and equipment	104,857	84,206
Biological assets [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	84,206	66,139	48,002
Purchases or capitalized expenses	20,559	20,900	24,409
Withdrawals / Sales	(18,822)	(23,343)	(19,775)
Changes in fair value	18,914	20,606	13,503
Reclassifications		(96)
Property, plant and equipment	104,857	84,206	66,139
Biological assets [member] | Gross carrying amount | Pizano and Banco Corficolombiana Panama [member]
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales		(4,225)
Property, plant and equipment not subject to operating leases [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	5,663,743
Property, plant and equipment	5,783,234	5,663,743
Property, plant and equipment not subject to operating leases [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	8,740,485	8,497,557	8,388,936
Effects of amendments in accounting policies by rights of use	(91,604)
Purchases or capitalized expenses	671,219	547,668	470,650
Withdrawals / Sales	(287,264)	(389,303)	(374,606)
Transfers to/from non-current assets held for sale	(7,782)	1,335	587
Effect of movement in exchange rates	54,794	120,766	(65,404)
Reclassifications	143,507	(37,538)	77,394
Property, plant and equipment	9,223,355	8,740,485	8,497,557
Property, plant and equipment not subject to operating leases [member] | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,070,841)	(2,690,167)	(2,487,188)
Effects of amendments in accounting policies by rights of use	25,446
Withdrawals / Sales	231,892	164,541	274,804
Transfers to/from non-current assets held for sale	1,069
Effect of movement in exchange rates	(25,950)	(63,058)	20,881
Reclassifications	(83,564)	(4,897)	(35,531)
Depreciation, property, plant and equipment	(513,357)	(477,260)	(463,133)
Property, plant and equipment	(3,435,305)	(3,070,841)	(2,690,167)
Property, plant and equipment not subject to operating leases [member] | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(5,901)	(7,393)	(2,499)
Year impairment charge			(4,894)
Withdrawals / Year impairment charge	1,085	1,492
Property, plant and equipment	(4,816)	(5,901)	(7,393)
Property, plant and equipment subject to operating leases, IAS 17 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	4,210
Property, plant and equipment	8,196	4,210
Property, plant and equipment subject to operating leases, IAS 17 [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	7,784	7,682	7,047
Purchases or capitalized expenses	7,468	1,641	3,102
Withdrawals / Sales	(310)	(1,539)	(2,467)
Reclassifications	(1,671)
Property, plant and equipment	13,271	7,784	7,682
Property, plant and equipment subject to operating leases, IAS 17 [member] | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,571)	(3,606)	(4,883)
Withdrawals / Sales	19	1,381	2,036
Reclassifications	1,062
Depreciation, property, plant and equipment	(2,552)	(1,346)	(759)
Property, plant and equipment	(5,042)	(3,571)	(3,606)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3)		(88)
Year impairment charge			$ 88
Withdrawals / Year impairment charge	(30)	(3)
Property, plant and equipment	(33)	$ (3)
Property, plant and equipment subject to operating leases [member] | Right of use assets
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,125,558
Property, plant and equipment subject to operating leases [member] | Right of use assets | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Effects of amendments in accounting policies by rights of use	2,365,889
Purchases or capitalized expenses	187,834
Withdrawals / Sales	(80,078)
Effect of movement in exchange rates	50,153
Reclassifications	(4,822)
Property, plant and equipment	2,518,976
Property, plant and equipment subject to operating leases [member] | Right of use assets | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Effects of amendments in accounting policies by rights of use	(82,351)
Withdrawals / Sales	8,302
Effect of movement in exchange rates	772
Reclassifications	3,055
Depreciation, property, plant and equipment	(323,196)
Property, plant and equipment	$ (393,418)

TANGIBLE ASSETS - Properties, p

TANGIBLE ASSETS - Properties, plant and equipment balance (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ 8,950,411	$ 6,588,483
Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	12,789,025	9,668,799	$ 9,355,172	$ 9,054,173
Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,833,765)	(3,074,412)	(2,693,773)	(2,492,071)
Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(4,849)	(5,904)	(7,393)	(2,587)
Property, plant and equipment not subject to operating leases [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	5,783,234	5,663,743
Property, plant and equipment not subject to operating leases [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	9,223,355	8,740,485	8,497,557	8,388,936
Property, plant and equipment not subject to operating leases [member] | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,435,305)	(3,070,841)	(2,690,167)	(2,487,188)
Property, plant and equipment not subject to operating leases [member] | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(4,816)	(5,901)	$ (7,393)	$ (2,499)
Property, plant and equipment not subject to operating leases [member] | Land
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,003,109	1,007,276
Property, plant and equipment not subject to operating leases [member] | Land | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,007,388	1,011,018
Property, plant and equipment not subject to operating leases [member] | Land | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(4,279)	(3,742)
Property, plant and equipment not subject to operating leases [member] | Buildings
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,131,281	2,082,359
Property, plant and equipment not subject to operating leases [member] | Buildings | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,770,341	2,652,100
Property, plant and equipment not subject to operating leases [member] | Buildings | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(639,060)	(569,741)
Property, plant and equipment not subject to operating leases [member] | Office Equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	328,882	329,095
Property, plant and equipment not subject to operating leases [member] | Office Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,069,621	1,013,974
Property, plant and equipment not subject to operating leases [member] | Office Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(740,455)	(684,617)
Property, plant and equipment not subject to operating leases [member] | Office Equipment | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(284)	(262)
Property, plant and equipment not subject to operating leases [member] | Computer Equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	593,248	464,822
Property, plant and equipment not subject to operating leases [member] | Computer Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,028,137	1,725,795
Property, plant and equipment not subject to operating leases [member] | Computer Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(1,434,889)	(1,260,973)
Property, plant and equipment not subject to operating leases [member] | Motor vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	65,051	63,556
Property, plant and equipment not subject to operating leases [member] | Motor vehicles | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	135,334	134,417
Property, plant and equipment not subject to operating leases [member] | Motor vehicles | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(70,283)	(70,826)
Property, plant and equipment not subject to operating leases [member] | Motor vehicles | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		(35)
Property, plant and equipment not subject to operating leases [member] | Machinery
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,129,868	1,131,554
Property, plant and equipment not subject to operating leases [member] | Machinery | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,397,337	1,355,555
Property, plant and equipment not subject to operating leases [member] | Machinery | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(267,216)	(222,139)
Property, plant and equipment not subject to operating leases [member] | Machinery | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(253)	(1,862)
Property, plant and equipment not subject to operating leases [member] | Silos [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,895	2,874
Property, plant and equipment not subject to operating leases [member] | Silos [Member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	8,613	8,613
Property, plant and equipment not subject to operating leases [member] | Silos [Member] | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(6,718)	(5,739)
Property, plant and equipment not subject to operating leases [member] | Warehouses
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	28,996	17,737
Property, plant and equipment not subject to operating leases [member] | Warehouses | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	62,002	44,416
Property, plant and equipment not subject to operating leases [member] | Warehouses | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(33,006)	(26,679)
Property, plant and equipment not subject to operating leases [member] | Leasehold improvements
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	180,255	160,219
Property, plant and equipment not subject to operating leases [member] | Leasehold improvements | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	410,224	381,158
Property, plant and equipment not subject to operating leases [member] | Leasehold improvements | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(229,969)	(220,939)
Property, plant and equipment not subject to operating leases [member] | Construction in progress
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	96,576	185,264
Property, plant and equipment not subject to operating leases [member] | Construction in progress | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	96,576	185,264
Property, plant and equipment not subject to operating leases [member] | Bearer plants
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	224,073	218,987
Property, plant and equipment not subject to operating leases [member] | Bearer plants | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	237,782	228,175
Property, plant and equipment not subject to operating leases [member] | Bearer plants | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ (13,709)	$ (9,188)

TANGIBLE ASSETS - Operating Lea

TANGIBLE ASSETS - Operating Lease (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ 8,950,411	$ 6,588,483
Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	12,789,025	9,668,799	$ 9,355,172	$ 9,054,173
Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,833,765)	(3,074,412)	(2,693,773)	(2,492,071)
Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(4,849)	(5,904)	(7,393)	(2,587)
Property, plant and equipment subject to operating leases, IAS 17 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	8,196	4,210
Property, plant and equipment subject to operating leases, IAS 17 [member] | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	13,271	7,784	7,682	7,047
Property, plant and equipment subject to operating leases, IAS 17 [member] | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(5,042)	(3,571)	$ (3,606)	(4,883)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(33)	(3)		$ (88)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Office Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		98
Property, plant and equipment subject to operating leases, IAS 17 [member] | Office Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		(98)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Computer Equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	5,437	2,401
Property, plant and equipment subject to operating leases, IAS 17 [member] | Computer Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	8,758	4,041
Property, plant and equipment subject to operating leases, IAS 17 [member] | Computer Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,321)	(1,641)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Computer Equipment | Accumulated impairment recovery
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		1
Property, plant and equipment subject to operating leases, IAS 17 [member] | Motor vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,696	1,524
Property, plant and equipment subject to operating leases, IAS 17 [member] | Motor vehicles | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	3,061	3,176
Property, plant and equipment subject to operating leases, IAS 17 [member] | Motor vehicles | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(1,365)	(1,648)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Motor vehicles | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		(4)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Machinery
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,063	285
Property, plant and equipment subject to operating leases, IAS 17 [member] | Machinery | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,452	469
Property, plant and equipment subject to operating leases, IAS 17 [member] | Machinery | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(356)	$ (184)
Property, plant and equipment subject to operating leases, IAS 17 [member] | Machinery | Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ (33)

TANGIBLE ASSETS - Minimum Lease

TANGIBLE ASSETS - Minimum Lease Payments (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis of operating lease payments [line items]
Minimum operating lease payments receivable, at present value	$ 7,637
Minimum operating lease payments receivable, at present value		$ 4,901
Not later than one year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Minimum operating lease payments receivable, at present value	3,700
Minimum operating lease payments receivable, at present value		2,313
More than 1 year and no more than 5 years
Disclosure of maturity analysis of operating lease payments [line items]
Minimum operating lease payments receivable, at present value	$ 3,937
Minimum operating lease payments receivable, at present value		$ 2,588

TANGIBLE ASSETS - Right of Use

TANGIBLE ASSETS - Right of Use Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ 8,950,411	$ 6,588,483
Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	12,789,025	9,668,799	$ 9,355,172	$ 9,054,173
Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(3,833,765)	(3,074,412)	(2,693,773)	(2,492,071)
Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(4,849)	$ (5,904)	$ (7,393)	$ (2,587)
Property, plant and equipment subject to operating leases [member] | Right of use assets
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,125,558
Property, plant and equipment subject to operating leases [member] | Right of use assets | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,518,976
Property, plant and equipment subject to operating leases [member] | Right of use assets | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(393,418)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Land
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	26,201
Property, plant and equipment subject to operating leases [member] | Right of use assets | Land | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	27,411
Property, plant and equipment subject to operating leases [member] | Right of use assets | Land | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(1,210)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Buildings
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	1,758,317
Property, plant and equipment subject to operating leases [member] | Right of use assets | Buildings | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	2,028,767
Property, plant and equipment subject to operating leases [member] | Right of use assets | Buildings | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(270,450)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Office Equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	46
Property, plant and equipment subject to operating leases [member] | Right of use assets | Office Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	73
Property, plant and equipment subject to operating leases [member] | Right of use assets | Office Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(27)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Computer Equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	73,505
Property, plant and equipment subject to operating leases [member] | Right of use assets | Computer Equipment | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	89,818
Property, plant and equipment subject to operating leases [member] | Right of use assets | Computer Equipment | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(16,313)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Motor vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	55,189
Property, plant and equipment subject to operating leases [member] | Right of use assets | Motor vehicles | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	74,410
Property, plant and equipment subject to operating leases [member] | Right of use assets | Motor vehicles | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(19,221)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Machinery
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	114,742
Property, plant and equipment subject to operating leases [member] | Right of use assets | Machinery | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	183,936
Property, plant and equipment subject to operating leases [member] | Right of use assets | Machinery | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	(69,194)
Property, plant and equipment subject to operating leases [member] | Right of use assets | Warehouses
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	97,558
Property, plant and equipment subject to operating leases [member] | Right of use assets | Warehouses | Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	114,561
Property, plant and equipment subject to operating leases [member] | Right of use assets | Warehouses | Accumulated depreciation and amortization
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	$ (17,003)

TANGIBLE ASSETS - Biological As

TANGIBLE ASSETS - Biological Assets (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about biological assets [line items]
Biological assets	$ 104,857	$ 84,206
In production | African Palm Plantation
Disclosure of detailed information about biological assets [line items]
Biological assets	32,509	29,783
In production | Rubber Plantation
Disclosure of detailed information about biological assets [line items]
Biological assets	57,698	41,533
Other biological assets | Rubber Plantation
Disclosure of detailed information about biological assets [line items]
Biological assets	$ 14,650	$ 12,890

TANGIBLE ASSETS - Area Planted

TANGIBLE ASSETS - Area Planted in Hectares (Details) - a	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [abstract]
Areas planted in hectares	8,936	8,534

TANGIBLE ASSETS - Hectares Expe

TANGIBLE ASSETS - Hectares Expected Years (Details) - a	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Area of land used for agriculture	8,936	8,534
Not later than one year [member]
Disclosure of detailed information about property, plant and equipment [line items]
Area of land used for agriculture	435	1,639
More than 1 year and no more than 5 years
Disclosure of detailed information about property, plant and equipment [line items]
Area of land used for agriculture	4,751	3,194
More than 5 years and no more than 10 years
Disclosure of detailed information about property, plant and equipment [line items]
Area of land used for agriculture	1,610	1,966
More than 10 years
Disclosure of detailed information about property, plant and equipment [line items]
Area of land used for agriculture	2,140	1,735

TANGIBLE ASSETS - Statement of

TANGIBLE ASSETS - Statement of Income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [abstract]
Sales of biological goods	$ 107,590	$ 88,382	$ 43,788
Changes in fair value of biological assets	18,914	20,606	13,503
Subtotal	126,504	108,988	57,291
Costs and expenses	(93,626)	(73,981)	(37,313)
Depreciation of bearer plants	(5,249)	(11,816)	(3,405)
General administration costs and sales	(9,260)	(5,390)	(7,278)
Financial costs	(6,221)	(5,599)	(4,136)
Subtotal	(114,356)	(96,786)	(52,132)
Total net income	$ 12,148	$ 12,202	$ 5,159

TANGIBLE ASSETS - Investment pr

TANGIBLE ASSETS - Investment properties - Summary (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Investment properties, cost	$ 684,497	$ 586,799
Investment properties, accumulated adjustments to fair value	244,069	249,525
Investment properties	928,566	836,324
Land
Disclosure of detailed information about property, plant and equipment [line items]
Investment properties, cost	446,012	371,087
Investment properties, accumulated adjustments to fair value	194,289	198,252
Investment properties	640,301	569,339
Buildings
Disclosure of detailed information about property, plant and equipment [line items]
Investment properties, cost	238,485	215,712
Investment properties, accumulated adjustments to fair value	49,780	51,273
Investment properties	$ 288,265	$ 266,985

TANGIBLE ASSETS - Investment _2

TANGIBLE ASSETS - Investment properties - Amounts recognized in statement of income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [abstract]
Income from rents	$ 10,289	$ 10,370	$ 11,992
Direct operating expenses deriving from property investments which create income from rent	(1,929)	(1,486)	(1,053)
Direct operating expenses deriving from property investments which do not create income from rent	(6,211)	(5,112)	(4,239)
Net	$ 2,149	$ 3,772	$ 6,700

TANGIBLE ASSETS - Textual (Deta

TANGIBLE ASSETS - Textual (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]
Capitalization of intangible	$ 329	$ 325
Assets received in total or partial settlement of payment obligations of debtors	114,331	6,895	$ 8,219
Biological assets	104,857	84,206
Short-term crops and fish farming
Disclosure of detailed information about property, plant and equipment [line items]
Biological assets	9,081	7,633
Gross carrying amount
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales	$ (455,463)	(492,869)	(425,279)
Gross carrying amount | Pizano and Banco Corficolombiana Panama [member]
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales		$ (114,099)
Gross carrying amount | Consorcio Consol [member]
Disclosure of detailed information about property, plant and equipment [line items]
Withdrawals / Sales			(30,440)
Accumulated impairment
Disclosure of detailed information about property, plant and equipment [line items]
Year impairment charge			$ 4,806

CONCESSION ARRANGEMENTS RIGHT_2

CONCESSION ARRANGEMENTS RIGHTS (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	$ 259,515,428	$ 245,105,338
Assets	278,832,589	259,675,153
Accumulated impairment
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	(8,557,039)	(8,611,594)		$ (5,875,018)
Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	7,031,916	5,118,683	$ 3,531,683	3,068,629	$ 2,275,915
Intangible assets	7,521,488	5,514,481	$ 3,734,116	$ 3,114,167	$ 2,805,314
Assets	14,553,404	10,633,164
Service concession arrangement [member] | Accumulated impairment
Disclosure of detailed information about service concession arrangements [line items]
Intangible assets	(2,032)
Financial assets at fair value through profit or loss, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	11,996,398	9,754,120
Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	2,706,030	2,488,414
Financial assets at amortised cost, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	224,581,946	215,324,860
Financial assets at amortised cost, category [member] | Accumulated impairment
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	(8,472,997)	(8,453,149)
Financial assets at amortised cost, category [member] | Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	4,325,886	2,630,269
Financial assets at amortised cost, category [member] | Service concession arrangement [member] | Accumulated impairment
Disclosure of detailed information about service concession arrangements [line items]
Financial assets	$ (1,176)	$ (966)

CONCESSION ARRANGEMENTS RIGHT_3

CONCESSION ARRANGEMENTS RIGHTS - Financial assets in concession arrangements (Details) - COP ($) $ in Millions	Jan. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period		$ 245,105,338
Net impairment loss on financial assets		(3,755,103)	$ (3,797,345)	$ (3,854,894)
Financial assets at end of period		259,515,428	245,105,338
Financial assets at fair value through profit or loss, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period		9,754,120
Financial assets at end of period		11,996,398	9,754,120
Financial assets at amortised cost, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period		215,324,860
Financial assets at end of period		224,581,946	215,324,860
Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period	$ 3,068,629	5,118,683	3,068,629	2,275,915
Additions or new concession arrangements		1,495,035	1,361,261	698,749
Collections during the year		(23,674)	(22,803)	(162,271)
Adjustment to fair value credited to income		217,616	205,803	209,937
Accrued interest		225,432	43,137	46,299
Net impairment loss on financial assets		(1,176)	(398)
Financial assets at end of period	3,531,683	7,031,916	5,118,683	3,068,629
Service concession arrangement [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	463,622
Service concession arrangement [member] | Increase (decrease) due to application of IFRS 9
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	(568)
Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period		2,488,414
Financial assets at end of period		2,706,030	2,488,414
Service concession arrangement [member] | Financial assets at amortised cost, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period		2,630,269
Financial assets at end of period		4,325,886	2,630,269
Gas and Energy Concession Arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period	2,282,611	2,488,414	2,282,611	2,072,674
Adjustment to fair value credited to income		217,616	205,803	209,937
Financial assets at end of period	2,282,611	2,706,030	2,488,414	2,282,611
Infrastructure Concession Arrangement [member] | Financial assets at amortised cost, category [member]
Disclosure of detailed information about service concession arrangements [line items]
Financial assets at beginning of period	786,018	2,630,269	786,018	203,241
Additions or new concession arrangements		1,495,035	1,361,261	698,749
Collections during the year		(23,674)	(22,803)	(162,271)
Accrued interest		225,432	43,137	46,299
Net impairment loss on financial assets		(1,176)	(398)
Financial assets at end of period	1,249,072	$ 4,325,886	$ 2,630,269	$ 786,018
Infrastructure Concession Arrangement [member] | Financial assets at amortised cost, category [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	463,622
Infrastructure Concession Arrangement [member] | Financial assets at amortised cost, category [member] | Increase (decrease) due to application of IFRS 9
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	$ (568)

CONCESSION ARRANGEMENTS RIGHT_4

CONCESSION ARRANGEMENTS RIGHTS - Intangible assets in concession arrangements - Tabular disclosure (Details) - COP ($) $ in Millions	Jan. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about service concession arrangements [line items]
Amortization of the year		$ (191,768)	$ (161,533)	$ (137,497)
Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Ending Balance	$ 619,949
Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	3,114,167	5,514,481	3,114,167	2,805,314
Ending Balance	3,734,116	7,521,488	5,514,481	3,114,167
Service concession arrangement [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	619,949
Gas and Energy Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	2,176,163	2,531,277	2,176,163	2,118,200
Ending Balance	2,176,163	3,145,811	2,531,277	2,176,163
Infrastructure Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	938,004	2,983,204	938,004	687,114
Ending Balance	1,557,953	4,375,677	2,983,204	938,004
Infrastructure Concession Arrangement [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	619,949
Gross carrying amount | Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	4,041,684	6,765,773	4,041,684	3,449,729
Additions		2,285,995	2,045,681	610,909
Reclassification to PPE		407	25,840	(14,408)
Withdrawals		(773,817)	(1,374)	(3,505)
Effect of movements in exchange rates		1,434	33,993	(1,041)
Cost / (Amortization) / (Impairment loss)		1,514,019	2,104,140	591,955
Ending Balance	4,661,633	8,279,792	6,765,773	4,041,684
Gross carrying amount | Service concession arrangement [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	619,949
Gross carrying amount | Gas and Energy Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	2,546,056	3,033,014	2,546,056	2,369,931
Additions		760,982	428,375	193,489
Reclassification to PPE		407	25,840	(14,408)
Withdrawals		(10,299)	(1,250)	(1,915)
Effect of movements in exchange rates		1,434	33,993	(1,041)
Cost / (Amortization) / (Impairment loss)		752,524	486,958	176,125
Ending Balance	2,546,056	3,785,538	3,033,014	2,546,056
Gross carrying amount | Infrastructure Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	1,495,628	3,732,759	1,495,628	1,079,798
Additions		1,525,013	1,617,306	417,420
Withdrawals		(763,518)	(124)	(1,590)
Cost / (Amortization) / (Impairment loss)		761,495	1,617,182	415,830
Ending Balance	2,115,577	4,494,254	3,732,759	1,495,628
Gross carrying amount | Infrastructure Concession Arrangement [member] | Increase (decrease) due to application of IFRS 15
Disclosure of detailed information about service concession arrangements [line items]
Impact of the adoption	619,949
Accumulated depreciation and amortization | Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	(927,517)	(1,251,292)	(927,517)	(644,415)
Reclassification to PPE		7	(665)	841
Amortization of the year		(248,704)	(300,210)	(284,489)
Withdrawals		744,190		630
Withdrawals			(21,083)
Effect of movements in exchange rates		(473)	(1,817)	(84)
Cost / (Amortization) / (Impairment loss)		495,020	(323,775)	(283,102)
Ending Balance		(756,272)	(1,251,292)	(927,517)
Accumulated depreciation and amortization | Gas and Energy Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	(369,893)	(501,737)	(369,893)	(251,731)
Reclassification to PPE		7	(665)	841
Amortization of the year		(140,488)	(129,509)	(119,549)
Withdrawals		2,964	147	630
Effect of movements in exchange rates		(473)	(1,817)	(84)
Cost / (Amortization) / (Impairment loss)		(137,990)	(131,844)	(118,162)
Ending Balance		(639,727)	(501,737)	(369,893)
Accumulated depreciation and amortization | Infrastructure Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Beginning Balance	$ (557,624)	(749,555)	(557,624)	(392,684)
Amortization of the year		(108,216)	(170,701)	(164,940)
Withdrawals		741,226
Withdrawals			(21,230)
Cost / (Amortization) / (Impairment loss)		633,010	(191,931)	(164,940)
Ending Balance		(116,545)	$ (749,555)	$ (557,624)
Accumulated impairment | Service concession arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Impairment charge		(2,032)
Cost / (Amortization) / (Impairment loss)		(2,032)
Ending Balance		(2,032)
Accumulated impairment | Infrastructure Concession Arrangement [member]
Disclosure of detailed information about service concession arrangements [line items]
Impairment charge		(2,032)
Cost / (Amortization) / (Impairment loss)		(2,032)
Ending Balance		$ (2,032)

CONCESSION ARRANGEMENTS RIGHT_5

CONCESSION ARRANGEMENTS RIGHTS - Intangible assets in concession arrangements - Additional information (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Infrastructure Concession Arrangement [member] | Proyectos de Infraestructura S.A.
Disclosure of detailed information about service concession arrangements [line items]
Amortization offset against liability	$ 21,884	$ 21,230

CONCESSION ARRANGEMENTS RIGHT_6

CONCESSION ARRANGEMENTS RIGHTS - Summary of the main concession contracts (Details)	12 Months Ended
	Dec. 31, 2019
Gas and Energy Concession Arrangement [member] | Surtigas S.A. E.S.P.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Gas and Energy Concession Arrangement [member] | Transmetano E.S.P. S.A
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Gas and Energy Concession Arrangement [member] | Promigas S.A. E.S.P.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Gas and Energy Concession Arrangement [member] | Promioriente S.A. E.S.P
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Gas and Energy Concession Arrangement [member] | Gases de Occidente S.A. E.S.P
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Gas and Energy Concession Arrangement [member] | Compania Energetica de Occidente S.A. E.S.P.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	38.33%
Gas and Energy Concession Arrangement [member] | Gases del Pacifico S.A.C.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	62.00%
Gas and Energy Concession Arrangement [member] | Sociedad Portuaria El Cayao S.A. E.S.P.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Infrastructure Concession Arrangement [member] | Proyectos de Infraestructura S.A.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Infrastructure Concession Arrangement [member] | Concesionaria vial de los Andes S.A.S. Coviandes
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Infrastructure Concession Arrangement [member] | Concesiones CCFC S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Infrastructure Concession Arrangement [member] | Concesionaria Panamericana S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	100.00%
Infrastructure Concession Arrangement [member] | Concesionaria Vial Del Pacifico S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	33.85%
Infrastructure Concession Arrangement [member] | Concesionaria Nueva Via del Mar S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	3.85%
Infrastructure Concession Arrangement [member] | Concesionaria Vial Andina S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	64.81%
Infrastructure Concession Arrangement [member] | Concesionaria Vial Del Oriente S.A.S.
Disclosure of detailed information about service concession arrangements [line items]
Percentage of progress of building	23.13%

GOODWILL - Roll forwards (Detai

GOODWILL - Roll forwards (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in goodwill [abstract]
Balance at the beginning of the year	$ 7,318,594	$ 6,901,056
Impairment charge	(13,041)
Effect of movements in exchange rates	43,034	417,538
Balance at the end of the year	$ 7,348,587	$ 7,318,594

GOODWILL - Carrying Amount (Det

GOODWILL - Carrying Amount (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	$ 7,348,587	$ 7,318,594	$ 6,901,056
Leasing Bogota Panama S.A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	5,148,935	5,105,901
Banco de Bogota S.A. over Megabanco
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	465,905	465,905
Promigas S.A. E.S.P.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	169,687	169,687
Concesionaria Panamericana S.A.S.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	106,874	119,915
Concesionaria Covipacífico S.A.S.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	102,376	102,376
Hoteles Estelar S. A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	6,661	6,661
Banco de Occidente S.A. over Banco Unión
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	22,724	22,724
Banco Popular S.A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	358,401	358,401
Banco de Bogota S.A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	301,222	301,222
Banco de Occidente S.A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	127,571	127,571
Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A.
Disclosure of information for cash-generating units [line items]
Goodwill carrying amount	$ 538,231	$ 538,231

GOODWILL - Projection (Details)

GOODWILL - Projection (Details) - Leasing Bogota Panama S.A.	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in goodwill [line items]
Discount rate after taxes	11.50%
Growth rate after ten years	3.00%
Not later than one year [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	11.30%	11.40%
Borrowing rate	2.80%	2.90%
Growth in income from commissions	(0.20%)	2.00%
Growth in expenses	5.90%	5.30%
Discount rate after taxes	11.50%	11.80%
Growth rate after ten years	3.00%	3.00%
Later than one year and not later than two years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	11.40%	11.40%
Borrowing rate	2.80%	3.00%
Growth in income from commissions	6.60%	7.70%
Growth in expenses	5.50%	6.20%
Later than two years and not later than three years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	11.40%	11.40%
Borrowing rate	2.80%	3.00%
Growth in income from commissions	8.40%	8.00%
Growth in expenses	5.40%	5.80%
Later than three years and not later than four years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	11.30%	11.30%
Borrowing rate	2.80%	3.00%
Growth in income from commissions	8.70%	7.80%
Growth in expenses	5.70%	6.00%
Later than four years and not later than five years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	11.30%	11.30%
Borrowing rate	2.80%	3.00%
Growth in income from commissions	8.70%	7.70%
Growth in expenses	6.20%	6.30%

GOODWILL - Cash Generating Unit

GOODWILL - Cash Generating Units (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	$ 7,348,587	$ 7,318,594	$ 6,901,056
Banco de Bogota S.A. over Megabanco
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	100.00%
Goodwill	$ 465,905	$ 465,905
Cash-generating units four [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	6.70%
Goodwill	$ 31,304
Cash-generating units three [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	27.00%
Goodwill	$ 125,934
Cash-generating units two [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	30.80%
Goodwill	$ 143,287
Cash-generating units one [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	32.70%
Goodwill	$ 152,539
Cash-generating units five [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of goodwill allocated	2.80%
Goodwill	$ 12,841

GOODWILL - Cash Generating Un_2

GOODWILL - Cash Generating Units with Allocated Goodwill (Details) - Banco de Bogota S.A. over Megabanco	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in goodwill [line items]
Discount rate after taxes	13.00%
Growth rate after five years	3.30%
Not later than one year [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	9.00%	9.40%
Borrowing rate	3.70%	3.50%
Growth in income from commissions	13.00%	9.90%
Growth in expenses	0.10%	3.70%
Inflation	3.20%	2.90%
Discount rate after taxes	13.00%	14.00%
Growth rate after five years	3.30%	3.10%
Later than one year and not later than two years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	9.40%	10.00%
Borrowing rate	3.70%	3.80%
Growth in income from commissions	7.80%	7.50%
Growth in expenses	5.30%	3.90%
Inflation	2.70%	3.10%
Later than two years and not later than three years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	10.00%	10.10%
Borrowing rate	4.10%	3.90%
Growth in income from commissions	7.80%	8.00%
Growth in expenses	5.70%	3.10%
Inflation	3.50%	2.70%
Later than three years and not later than four years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	10.30%	10.30%
Borrowing rate	4.40%	4.20%
Growth in income from commissions	8.40%	7.90%
Growth in expenses	5.20%	3.50%
Inflation	3.30%	3.50%
Later than four years and not later than five years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Lending rate on the loan portfolio and investments	10.40%	10.50%
Borrowing rate	4.30%	4.30%
Growth in income from commissions	8.60%	8.30%
Growth in expenses	4.90%	3.60%
Inflation	3.30%	3.30%

GOODWILL - Projection Rate (Det

GOODWILL - Projection Rate (Details) - Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A.	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in goodwill [line items]
Discount interest rate after taxes	12.00%
Growth rate after twenty years	3.20%
Not later than one year [member]
Disclosure of reconciliation of changes in goodwill [line items]
Interest rate on investments	2.70%	4.60%
Borrowing rate	6.30%	6.30%
Growth in income from commissions	0.70%	1.00%
Growth in expenses	3.40%	4.30%
Inflation	3.20%	2.90%
Discount interest rate after taxes	12.00%	13.00%
Growth rate after twenty years	3.20%	3.10%
Later than one year and not later than two years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Interest rate on investments	2.80%	5.70%
Borrowing rate	6.30%	6.30%
Growth in income from commissions	6.30%	9.40%
Growth in expenses	4.80%	4.60%
Inflation	2.70%	3.10%
Later than two years and not later than three years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Interest rate on investments	3.20%	5.70%
Borrowing rate	6.30%	6.30%
Growth in income from commissions	7.50%	7.50%
Growth in expenses	5.50%	5.60%
Inflation	3.50%	2.70%
Later than three years and not later than four years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Interest rate on investments	3.10%	6.50%
Borrowing rate	6.30%	6.30%
Growth in income from commissions	6.50%	7.80%
Growth in expenses	(0.50%)	6.60%
Inflation	3.30%	3.50%
Later than four years and not later than five years [member]
Disclosure of reconciliation of changes in goodwill [line items]
Interest rate on investments	3.10%	6.30%
Borrowing rate	6.30%	6.30%
Growth in income from commissions	6.40%	6.80%
Growth in expenses	3.20%	0.50%
Inflation	3.30%	3.30%

GOODWILL - Textual (Details)

GOODWILL - Textual (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	$ 7,348,587	$ 7,318,594	$ 6,901,056
Impairment	$ 13,041
Explanation of period over which management has projected cash flows	Such calculations used cash flow projections, covering periods from 5 to 20 years.
Banco Bilbao Vizcaya Argentaria S.A. Panama [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of voting equity interests acquired	98.92%
Grupo Financiero Reformador de Guatemala [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of voting equity interests acquired	100.00%
Banco de Credito y Desarrollo Social [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of voting equity interests acquired	94.99%
Medios de Pago MP S.A [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of voting equity interests acquired	100.00%
Gain (loss) that relates to identifiable assets acquired or liabilities assumed in business combination and is of such size, nature or incidence that disclosure is relevant to understanding combined entity's financial statements	$ 853,401
COINCA Corporation Inc [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Percentage of voting equity interests acquired	100.00%
Concesionaria Panamericana S.A.S.
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	$ 106,874	119,915
Recoverable amount of asset or cash-generating unit	177,526
Impairment	13,041
Book value of cash-generating unit	190,567
Leasing Bogota Panama S.A.
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	5,148,935	5,105,901
Recoverable amount of asset or cash-generating unit	$ 21,490,101
Explanation of period over which management has projected cash flows	10 year projection
Book value of cash-generating unit	$ 14,611,105
Growth rate used to extrapolate cash flow projections	3.00%
Discount rate applied to cash flow projections	11.50%
Increase decrease in discount rate applied to cash flow projections	1.00%
Recoverable value if discount rate was 1.0% higher	$ 18,763,763
Exceeds the Book Value Of Cash generating Unit	6,878,995
Banco de Bogota S.A. over Megabanco
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	465,905	465,905
Recoverable amount of asset or cash-generating unit	$ 11,106,623
Explanation of period over which management has projected cash flows	5-year projection
Book value of cash-generating unit	$ 8,239,489
Growth rate used to extrapolate cash flow projections	3.30%
Discount rate applied to cash flow projections	13.00%
Increase decrease in discount rate applied to cash flow projections	1.00%
Recoverable value if discount rate was 1.0% higher	$ 10,030,439
Exceeds the Book Value Of Cash generating Unit	2,867,134
Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A.
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill	538,231	$ 538,231
Recoverable amount of asset or cash-generating unit	$ 5,731,871
Explanation of period over which management has projected cash flows	20 years projection
Book value of cash-generating unit	$ 3,472,787
Growth rate used to extrapolate cash flow projections	3.20%
Discount rate applied to cash flow projections	12.00%
Increase decrease in discount rate applied to cash flow projections	1.00%
Recoverable value if discount rate was 1.0% higher	$ 5,128,364
Exceeds the Book Value Of Cash generating Unit	$ 2,259,084

OTHER INTANGIBLE ASSETS (Detail

OTHER INTANGIBLE ASSETS (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other intangibles assets
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	$ 1,206,491	$ 1,033,884
Other intangibles assets | Gross carrying amount
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	1,993,638	1,634,149
Other intangibles assets | Accumulated depreciation and amortization
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	(787,147)	(600,265)
Software and information technology applications purchased
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	1,153,815	980,754
Software and information technology applications purchased | Internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	535,699	372,428
Software and information technology applications purchased | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	618,116	608,326
Software and information technology applications purchased | Gross carrying amount
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	1,917,602	1,564,536
Software and information technology applications purchased | Gross carrying amount | Internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	607,130	418,852
Software and information technology applications purchased | Gross carrying amount | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	1,310,472	1,145,684
Software and information technology applications purchased | Accumulated depreciation and amortization
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	(763,787)	(583,782)
Software and information technology applications purchased | Accumulated depreciation and amortization | Internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	(71,431)	(46,424)
Software and information technology applications purchased | Accumulated depreciation and amortization | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	(692,356)	(537,358)
Other intangible assets excluding software and information technology applications purchased and licences
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	52,676	53,130
Other intangible assets excluding software and information technology applications purchased and licences | Internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	5,356	2,673
Other intangible assets excluding software and information technology applications purchased and licences | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	47,320	50,457
Other intangible assets excluding software and information technology applications purchased and licences | Gross carrying amount
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	76,036	69,613
Other intangible assets excluding software and information technology applications purchased and licences | Gross carrying amount | Internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	5,356	2,673
Other intangible assets excluding software and information technology applications purchased and licences | Gross carrying amount | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	70,680	66,940
Other intangible assets excluding software and information technology applications purchased and licences | Accumulated depreciation and amortization
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	(23,360)	(16,483)
Other intangible assets excluding software and information technology applications purchased and licences | Accumulated depreciation and amortization | Non-internally generated
Disclosure of detailed information about intangible assets [line items]
Intangible assets other than goodwill	$ (23,360)	$ (16,483)

INCOME TAX - Components of the

INCOME TAX - Components of the income tax expense (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income tax [Abstract]
Current period income tax	$ 1,564,056	$ 1,746,881	$ 1,276,458
Income tax surcharge		95,630	151,980
Subtotal current period taxes	1,564,056	1,842,511	1,428,438
Prior years adjustments	(16,931)	(74,230)	(117,568)
Adjustment due to settlement of uncertain tax positions form prior years	(22,113)	24,277	(7,367)
Deferred taxes current period	647,718	357,032	449,291
Deferred taxes - Prior years adjustments	(86,473)
Subtotal deferred taxes	561,245	357,032	449,291
Total tax expense	$ 2,086,257	$ 2,149,590	$ 1,752,794

INCOME TAX - Reconciliation bet

INCOME TAX - Reconciliation between total expenses of income tax and tax expense (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income tax [Line Items]
Profit before income tax	$ 7,451,711	$ 7,334,141	$ 4,915,227
Enacted tax rate in Colombia	33.00%	37.00%	40.00%
Theoretical income tax expense	$ 2,459,065	$ 2,713,632	$ 1,966,091
Non deductible expenses	484,615	373,918	387,933
Tax losses considered non recoverable for income tax purpose	54,698	100,249	96,266
Presumptive income considered non recoverable for income tax purpose	7,071	33,296	7,991
Wealth tax			40,762
Nontaxable dividends	(24,172)	(23,457)	(19,587)
Nontaxable income under equity method in associates	(69,399)	(39,901)	(68,026)
Profit (loss) in sales or appraisal of investment	(1,167)	(2,148)	(16,584)
Nontaxable interest income and other income	(19,088)	(212,992)	(137,312)
Other nontaxable income	(339,253)	(167,091)	(155,010)
Revenues taxable by different tax rate	(5,851)	15,378	(658)
Difference from expenses deductibles at different tax rate		(11,060)	(11,822)
Tax benefits in the acquisition of property and equipment	(42,375)	(22,715)	(20,585)
Tax discounts	(80,742)
Profits (losses) in Subsidiaries in tax free countries or with different tax rate	(116,155)	(168,117)	(200,661)
Effect on the deferred income tax due to changes in tax rates	(129,172)	(308,534)	(38,574)
Prior years adjustments	(16,931)	(74,230)	(117,568)
Adjustments due to uncertain tax positions in previous year	(22,113)	24,277	(7,367)
Deferred taxes - Prior years adjustments	(86,473)
Other	33,699	(80,915)	47,505
Total tax expense	$ 2,086,257	$ 2,149,590	$ 1,752,794
Effective income tax rate	28.00%	29.31%	35.66%
Deferred tax rate, current	30.00%
Deferred tax rate, previous	33.00%
Corporacion Financiera Colombiana S.A.
Disclosure of income tax [Line Items]
Effect on the deferred income tax due to changes in tax rates		$ (233,865)
Banco de Bogota S.A.
Disclosure of income tax [Line Items]
Tax Discount	$ 47,155
Effect on the deferred income tax due to changes in tax rates		(59,054)
Banco de Occidente S.A.
Disclosure of income tax [Line Items]
Tax Discount	7,068
Effect on the deferred income tax due to changes in tax rates		(8,408)
Banco Commercial Av Villas S A
Disclosure of income tax [Line Items]
Effect on the deferred income tax due to changes in tax rates		(6,934)
Banco Popular S.A.
Disclosure of income tax [Line Items]
Tax Discount	6,257
Effect on the deferred income tax due to changes in tax rates		$ (362)
Banco AV Villas
Disclosure of income tax [Line Items]
Tax Discount	10,444
Corficolombiana
Disclosure of income tax [Line Items]
Tax Discount	8,498
Grupo Aval Holding
Disclosure of income tax [Line Items]
Tax Discount	$ 1,230

INCOME TAX - Tax losses and exc

INCOME TAX - Tax losses and excess of presumptive income (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	$ 1,046,172	$ 904,584
Excess of presumptive income not recognized as deferred tax assets	243,021	267,481
Tax loss carry forwards and excess of presumptive income not recognized as deferred tax assets	1,289,193	1,172,065
Not later than one year [member]
Disclosure of income tax [Line Items]
Excess of presumptive income not recognized as deferred tax assets		61,152
Later than one year and not later than two years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	15	66
Excess of presumptive income not recognized as deferred tax assets	44,318	45,738
Later than two years and not later than three years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets		1,216
Excess of presumptive income not recognized as deferred tax assets	60,302	61,296
Later than three years and not later than four years [member]
Disclosure of income tax [Line Items]
Excess of presumptive income not recognized as deferred tax assets	51,056	51,077
Later than four years and not later than five years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	174,370	173,118
Excess of presumptive income not recognized as deferred tax assets	58,965	48,218
Later than five years and not later than six years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	279,545	271,685
Excess of presumptive income not recognized as deferred tax assets	28,380
Later than six years and not later than seven years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	156,521
Later than seven years and not later than eight years [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	4,293
Without expiration date [member]
Disclosure of income tax [Line Items]
Tax loss carry forwards not recognized as deferred tax assets	$ 431,428	$ 458,499

INCOME TAX - Deferred taxes by

INCOME TAX - Deferred taxes by type of temporary difference (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	$ (1,819,604)	$ (1,557,420)	$ (1,051,847)
Change in accounting policies	13,290	154,208
Credited (charged) to profit or loss	(561,245)	(357,032)	(449,291)
Deferred tax expense (income) credited (charged) to OCI	(283,182)	(62,659)	(60,960)
Foreign exchange adjustments	26,030	3,299	4,678
Deferred tax (liabilities) assets at the end of the period	(2,624,711)	(1,819,604)	(1,557,420)
Deferred tax assets [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	1,863,249	1,520,787	1,637,801
Change in accounting policies	649,307	125,629
Credited (charged) to profit or loss	75,633	320,619	(123,089)
Deferred tax expense (income) credited (charged) to OCI	(195,492)	(55,390)	624
Foreign exchange adjustments	27,527	(48,396)	5,451
Deferred tax (liabilities) assets at the end of the period	2,420,224	1,863,249	1,520,787
Deferred tax assets [member] | Debt securities at fair value [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	29,650	8,081	62,627
Change in accounting policies		(2,431)
Credited (charged) to profit or loss	(14,680)	18,840	(30,580)
Deferred tax expense (income) credited (charged) to OCI	(4,540)	4,563	(23,966)
Foreign exchange adjustments	844	597
Deferred tax (liabilities) assets at the end of the period	11,274	29,650	8,081
Deferred tax assets [member] | Equity securities at fair value [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	622	8	1,583
Change in accounting policies		102
Credited (charged) to profit or loss	(1,129)	512	(1,254)
Deferred tax expense (income) credited (charged) to OCI	872		(321)
Deferred tax (liabilities) assets at the end of the period	365	622	8
Deferred tax assets [member] | Derivative instruments [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	73,154	36,805	78,740
Credited (charged) to profit or loss	68,038	(102,681)	(41,935)
Deferred tax expense (income) credited (charged) to OCI	15,351	185,803
Foreign exchange adjustments		(46,773)
Deferred tax (liabilities) assets at the end of the period	156,543	73,154	36,805
Deferred tax assets [member] | Accounts receivables [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period		699	16,278
Credited (charged) to profit or loss	147		(15,589)
Foreign exchange adjustments			10
Deferred tax (liabilities) assets at the end of the period	147		699
Deferred tax assets [member] | Allowance Of Investments Securities [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	136	366
Change in accounting policies		31
Credited (charged) to profit or loss	37	(264)
Foreign exchange adjustments		3
Deferred tax (liabilities) assets at the end of the period	173	136	366
Deferred tax assets [member] | Allowance for Accounts Receivable [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	41,390	333
Credited (charged) to profit or loss	8,750	44,660
Foreign exchange adjustments	4	(3,603)
Deferred tax (liabilities) assets at the end of the period	50,144	41,390	333
Deferred tax assets [member] | Loans and receivables
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	14,917	71,938	6,014
Change in accounting policies		64,527
Credited (charged) to profit or loss	(13,440)	(121,072)	65,924
Foreign exchange adjustments	173	(476)
Deferred tax (liabilities) assets at the end of the period	1,650	14,917	71,938
Deferred tax assets [member] | Allowance for impairment on loans and receivables [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	159,169	66,127	105,573
Change in accounting policies		68,513
Credited (charged) to profit or loss	54,517	13,808	(39,446)
Foreign exchange adjustments	(1,463)	10,721
Deferred tax (liabilities) assets at the end of the period	212,223	159,169	66,127
Deferred tax assets [member] | Allowance for other accounts receivable [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period		4,649	6,219
Credited (charged) to profit or loss		(4,649)	(1,570)
Deferred tax (liabilities) assets at the end of the period			4,649
Deferred tax assets [member] | Financial assets in concession contracts
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	158,645	28,536	25,837
Credited (charged) to profit or loss	89,238		2,571
Foreign exchange adjustments			128
Deferred tax (liabilities) assets at the end of the period	247,883	158,645	28,536
Deferred tax assets [member] | Foreclosed assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	2,927	18,161	4,846
Credited (charged) to profit or loss		(15,474)	13,315
Foreign exchange adjustments		240
Deferred tax (liabilities) assets at the end of the period		2,927	18,161
Deferred tax assets [member] | Allowance for foreclosed assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	2,927
Credited (charged) to profit or loss	(1,203)
Foreign exchange adjustments	132
Deferred tax (liabilities) assets at the end of the period	1,856	2,927
Deferred tax assets [member] | Property, plant and equipment [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	284,111	364,540	296,269
Credited (charged) to profit or loss	16,749	(77,625)	68,271
Foreign exchange adjustments	3,908	(2,804)
Deferred tax (liabilities) assets at the end of the period	304,768	284,111	364,540
Deferred tax assets [member] | Depreciation of Property, Plant and Equipment [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	20,903	11,993	5,699
Credited (charged) to profit or loss	15,180	8,854	6,294
Foreign exchange adjustments		56
Deferred tax (liabilities) assets at the end of the period	36,083	20,903	11,993
Deferred tax assets [member] | Investment property [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Credited (charged) to profit or loss	18,323
Deferred tax (liabilities) assets at the end of the period	18,323
Deferred tax assets [member] | Deferred charges and of intangible assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	168,856	145,625	113,817
Credited (charged) to profit or loss	(69,272)	23,233	30,922
Foreign exchange adjustments		(2)	886
Deferred tax (liabilities) assets at the end of the period	99,584	168,856	145,625
Deferred tax assets [member] | Tax losses carry forward [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	299,201	332,354	385,855
Credited (charged) to profit or loss	(24,518)	365,698	(53,556)
Deferred tax expense (income) credited (charged) to OCI	(240,420)	(402,042)
Foreign exchange adjustments	22,253	3,191	55
Deferred tax (liabilities) assets at the end of the period	56,516	299,201	332,354
Deferred tax assets [member] | Surplus of presumptive income [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	4,670	2,528	19,480
Credited (charged) to profit or loss	991	2,142	(16,952)
Deferred tax (liabilities) assets at the end of the period	5,661	4,670	2,528
Deferred tax assets [member] | Provisions [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	189,882	197,963	212,695
Change in accounting policies		(11,038)
Credited (charged) to profit or loss	35,111	2,163	(17,649)
Foreign exchange adjustments	(1,755)	794	2,917
Deferred tax (liabilities) assets at the end of the period	223,238	189,882	197,963
Deferred tax assets [member] | Employee benefits [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	131,783	98,924	104,606
Credited (charged) to profit or loss	(27,270)	41,406	(29,658)
Deferred tax expense (income) credited (charged) to OCI	15,308	(9,394)	23,976
Foreign exchange adjustments	546	847
Deferred tax (liabilities) assets at the end of the period	120,367	131,783	98,924
Deferred tax assets [member] | Goodwill [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Credited (charged) to profit or loss	859
Deferred tax (liabilities) assets at the end of the period	859
Deferred tax assets [member] | Deferred income [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	2,587		113,380
Change in accounting policies		12,349
Credited (charged) to profit or loss	(2,587)	(9,762)	(113,380)
Deferred tax (liabilities) assets at the end of the period		2,587
Deferred tax assets [member] | Financial Assets In Concession Arrangement [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	158,645	28,536
Change in accounting policies		(6,322)
Credited (charged) to profit or loss		136,431
Deferred tax (liabilities) assets at the end of the period		158,645	28,536
Deferred tax assets [member] | Biological asset [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	104	169	101
Credited (charged) to profit or loss	282	(65)	68
Deferred tax expense (income) credited (charged) to OCI	(166)
Deferred tax (liabilities) assets at the end of the period	220	104	169
Deferred tax assets [member] | Lease agreement [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	8,592	8,042	9,160
Change in accounting policies	649,307
Credited (charged) to profit or loss	(74,500)	625	(1,118)
Foreign exchange adjustments	3,480	(75)
Deferred tax (liabilities) assets at the end of the period	586,879	8,592	8,042
Deferred tax assets [member] | Other
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	271,950	123,645	69,022
Change in accounting policies		(102)
Credited (charged) to profit or loss	(3,989)	(6,161)	52,233
Deferred tax expense (income) credited (charged) to OCI	18,102	165,680	935
Foreign exchange adjustments	(595)	(11,112)	1,455
Deferred tax (liabilities) assets at the end of the period	285,468	271,950	123,645
Deferred tax liabilities [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(3,682,853)	(3,078,207)	(2,689,648)
Change in accounting policies	(636,017)	28,579
Credited (charged) to profit or loss	(636,878)	(677,651)	(326,202)
Deferred tax expense (income) credited (charged) to OCI	(87,690)	(7,269)	(61,584)
Foreign exchange adjustments	(1,497)	51,695	(773)
Deferred tax (liabilities) assets at the end of the period	(5,044,935)	(3,682,853)	(3,078,207)
Deferred tax liabilities [member] | Debt securities at fair value [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(49,937)	(44,492)	(27,278)
Change in accounting policies		9,555
Credited (charged) to profit or loss	43,565	(14,843)	29,105
Deferred tax expense (income) credited (charged) to OCI	(65,399)	26	(46,319)
Foreign exchange adjustments	(3,343)	(183)
Deferred tax (liabilities) assets at the end of the period	(75,114)	(49,937)	(44,492)
Deferred tax liabilities [member] | Equity securities at fair value [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(115,877)	(121,226)	(100,484)
Change in accounting policies		(298)
Credited (charged) to profit or loss	20,716	7,361	302
Deferred tax expense (income) credited (charged) to OCI	(10,773)	2,084	33
Foreign exchange adjustments	432	(3,798)	(21,077)
Deferred tax (liabilities) assets at the end of the period	(105,502)	(115,877)	(121,226)
Deferred tax liabilities [member] | Derivative instruments [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(17,565)	(87,525)	(67,974)
Credited (charged) to profit or loss	17,410	23,187	(15,190)
Deferred tax expense (income) credited (charged) to OCI	(10,272)		(4,361)
Foreign exchange adjustments	3,163	46,773
Deferred tax (liabilities) assets at the end of the period	(7,264)	(17,565)	(87,525)
Deferred tax liabilities [member] | Accounts receivables [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(287,526)	(306,774)	(260,621)
Change in accounting policies		(17)
Credited (charged) to profit or loss	195,426	17,677	(46,335)
Deferred tax expense (income) credited (charged) to OCI		1,588
Foreign exchange adjustments			182
Deferred tax (liabilities) assets at the end of the period	(92,100)	(287,526)	(306,774)
Deferred tax liabilities [member] | Allowance Of Investments Securities [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(23,150)	(182)
Change in accounting policies		57
Credited (charged) to profit or loss		(23,025)
Foreign exchange adjustments			(182)
Deferred tax (liabilities) assets at the end of the period		(23,150)	(182)
Deferred tax liabilities [member] | Allowance for Accounts Receivable [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(23,150)
Credited (charged) to profit or loss	(62,434)
Deferred tax (liabilities) assets at the end of the period	(85,584)	(23,150)
Deferred tax liabilities [member] | Loans and receivables
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(63,567)	(322,746)	(268,747)
Change in accounting policies		3,668
Credited (charged) to profit or loss	25,769	256,357	(53,999)
Foreign exchange adjustments	(288)	(846)
Deferred tax (liabilities) assets at the end of the period	(38,086)	(63,567)	(322,746)
Deferred tax liabilities [member] | Allowance for impairment on loans and receivables [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(270,947)	(397,838)	(275,785)
Change in accounting policies		204,100
Credited (charged) to profit or loss	(163,948)	(77,442)	(122,053)
Foreign exchange adjustments	2,188	233
Deferred tax (liabilities) assets at the end of the period	(432,707)	(270,947)	(397,838)
Deferred tax liabilities [member] | Financial assets in concession contracts
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(898,741)	(700,738)
Change in accounting policies		(228,241)
Credited (charged) to profit or loss		30,238
Deferred tax (liabilities) assets at the end of the period		(898,741)	(700,738)
Deferred tax liabilities [member] | Foreclosed assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(92,416)	(72,209)	(46,783)
Credited (charged) to profit or loss	2,140	(20,314)	(25,426)
Foreign exchange adjustments		107
Deferred tax (liabilities) assets at the end of the period	(90,276)	(92,416)	(72,209)
Deferred tax liabilities [member] | Property, plant and equipment [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(357,384)	(363,814)	(400,180)
Credited (charged) to profit or loss	54,139	11,305	36,404
Foreign exchange adjustments	8,942	(4,875)	(38)
Deferred tax (liabilities) assets at the end of the period	(294,303)	(357,384)	(363,814)
Deferred tax liabilities [member] | Depreciation of Property, Plant and Equipment [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(170,138)	(179,877)	(209,549)
Credited (charged) to profit or loss	(86,092)	9,908	30,948
Foreign exchange adjustments	(9,275)	(169)	(1,276)
Deferred tax (liabilities) assets at the end of the period	(265,505)	(170,138)	(179,877)
Deferred tax liabilities [member] | Right Of Use [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Change in accounting policies	(636,017)
Credited (charged) to profit or loss	144,618
Foreign exchange adjustments	(3,524)
Deferred tax (liabilities) assets at the end of the period	(494,923)
Deferred tax liabilities [member] | Investment property [member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Credited (charged) to profit or loss	(69,732)
Deferred tax expense (income) credited (charged) to OCI	(333)
Deferred tax (liabilities) assets at the end of the period	(70,065)
Deferred tax liabilities [member] | Deferred charges and of intangible assets
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(621,878)	(107,721)	(60,598)
Credited (charged) to profit or loss	539,796	(514,157)	(47,123)
Deferred tax (liabilities) assets at the end of the period	(82,082)	(621,878)	(107,721)
Deferred tax liabilities [member] | Provisions [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(24,280)	(575)	(471)
Credited (charged) to profit or loss	21,285	(22,312)	(62)
Deferred tax expense (income) credited (charged) to OCI		304	116
Foreign exchange adjustments	(6,413)	(1,697)	(158)
Deferred tax (liabilities) assets at the end of the period	(9,408)	(24,280)	(575)
Deferred tax liabilities [member] | Employee benefits [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Credited (charged) to profit or loss	(28,020)
Deferred tax expense (income) credited (charged) to OCI	322
Foreign exchange adjustments	206
Deferred tax (liabilities) assets at the end of the period	(27,492)
Deferred tax liabilities [member] | Goodwill [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(193,030)	(169,675)	(86,036)
Credited (charged) to profit or loss	(29,483)	(23,355)	(83,639)
Deferred tax (liabilities) assets at the end of the period	(222,513)	(193,030)	(169,675)
Deferred tax liabilities [member] | Deferred income [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(116,034)	(40,534)	(34,613)
Change in accounting policies		40,534
Credited (charged) to profit or loss	(11,189)	(116,034)	(5,921)
Deferred tax (liabilities) assets at the end of the period	(127,223)	(116,034)	(40,534)
Deferred tax liabilities [member] | Financial Assets In Concession Arrangement [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(898,741)	(700,738)	(718,496)
Credited (charged) to profit or loss	(1,182,031)		20,548
Foreign exchange adjustments			(2,790)
Deferred tax (liabilities) assets at the end of the period	(2,080,772)	(898,741)	(700,738)
Deferred tax liabilities [member] | Biological asset [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(23,333)	(16,583)	(6,806)
Credited (charged) to profit or loss	(4,371)	(6,750)	(9,777)
Deferred tax (liabilities) assets at the end of the period	(27,704)	(23,333)	(16,583)
Deferred tax liabilities [member] | Lease agreement [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(4,293)	(32,636)
Credited (charged) to profit or loss	(226,874)	28,343
Foreign exchange adjustments			(32,636)
Deferred tax (liabilities) assets at the end of the period	(231,167)	(4,293)	(32,636)
Deferred tax liabilities [member] | Other
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(243,665)	(71,408)	(65,400)
Change in accounting policies		(779)
Credited (charged) to profit or loss	62,260	(176,699)	(30,128)
Deferred tax expense (income) credited (charged) to OCI	(1,235)	(11,271)	(11,053)
Foreign exchange adjustments	6,106	16,492	35,173
Deferred tax (liabilities) assets at the end of the period	(176,534)	(243,665)	(71,408)
Deferred tax liabilities [member] | Provision for foreclosed assets [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period	(109,092)	(41,654)	(37,798)
Credited (charged) to profit or loss	100,172	(67,096)	(3,856)
Foreign exchange adjustments	309	(342)
Deferred tax (liabilities) assets at the end of the period	$ (8,611)	$ (109,092)	(41,654)
Deferred tax liabilities [member] | Unrealized profits of foreign subsidiaries [Member]
Reconciliation of changes in deferred tax liability (asset) [abstract]
Deferred tax (liabilities) assets at the beginning of the period			(22,029)
Foreign exchange adjustments			$ 22,029

INCOME TAX - Deferred tax asset

INCOME TAX - Deferred tax assets and liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets, Gross	$ 246,598	$ 341,338
Deferred tax liability, Gross	(2,871,309)	(2,160,942)
Net	(2,624,711)	(1,819,604)	$ (1,557,420)	$ (1,051,847)
Deferred tax assets, offset		(1,521,911)
Deferred tax liabilities, offset		1,521,911
Deferred tax assets, net		341,338
Deferred tax liability, net		(2,160,942)
Deferred tax assets [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets, Gross	2,420,224	1,863,249
Net	2,420,224	1,863,249	1,520,787	1,637,801
Deferred tax assets, offset	(2,173,626)
Deferred tax assets, net	246,598
Deferred tax liabilities [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax liability, Gross	(5,044,935)	(3,682,853)
Net	(5,044,935)	$ (3,682,853)	$ (3,078,207)	$ (2,689,648)
Deferred tax liabilities, offset	2,173,626
Deferred tax liability, net	$ (2,871,309)

INCOME TAX - Estimates (Details

INCOME TAX - Estimates (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of income tax [Line Items]
Deferred tax asset	$ 246,598	$ 341,338
Deferred tax liability	(2,871,309)	(2,160,942)
Current tax asset	895,208	593,837
Current tax liability	(387,274)	(413,456)
Deferred tax assets [member]
Disclosure of income tax [Line Items]
Deferred tax asset	2,420,224	1,863,249
Deferred tax assets [member] | Later than one year [member]
Disclosure of income tax [Line Items]
Deferred tax asset	385,937	399,074
Deferred tax assets [member] | Not later than one year [member]
Disclosure of income tax [Line Items]
Deferred tax asset	2,034,287	1,464,175
Deferred tax liabilities [member]
Disclosure of income tax [Line Items]
Deferred tax liability	(5,044,935)	(3,682,853)
Deferred tax liabilities [member] | Later than one year [member]
Disclosure of income tax [Line Items]
Deferred tax liability	(1,232,899)	(917,965)
Deferred tax liabilities [member] | Not later than one year [member]
Disclosure of income tax [Line Items]
Deferred tax liability	(3,812,036)	(2,764,888)
Current Tax Assets [Member]
Disclosure of income tax [Line Items]
Current tax asset	1,309,721	801,348
Current Tax Assets [Member] | Later than one year [member]
Disclosure of income tax [Line Items]
Current tax asset	987,830	650,879
Current Tax Assets [Member] | Not later than one year [member]
Disclosure of income tax [Line Items]
Current tax asset	321,891	150,469
Current Tax Liability [Member]
Disclosure of income tax [Line Items]
Current tax liability	(801,787)	(620,967)
Current Tax Liability [Member] | Later than one year [member]
Disclosure of income tax [Line Items]
Current tax liability	(698,901)	(507,555)
Current Tax Liability [Member] | Not later than one year [member]
Disclosure of income tax [Line Items]
Current tax liability	$ (102,886)	$ (113,412)

INCOME TAX - Effect of the curr

INCOME TAX - Effect of the current and deferred taxes in each component of other comprehensive income in equity (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income tax [Line Items]
Amount before tax	$ 737,759	$ (519,807)	$ 148,987
Current tax (expense) income	247,153	372,715	(12,657)
Deferred tax expense (income) credited (charged) to OCI	(283,182)	(62,659)	(60,960)
Total other comprehensive income	701,730	(209,751)	75,370
Items that will be reclassified to profit or loss [Member]
Disclosure of income tax [Line Items]
Amount before tax	555,912	(403,736)	191,974
Current tax (expense) income	247,153	372,715	(12,657)
Deferred tax expense (income) credited (charged) to OCI	(287,191)	(49,577)	(84,321)
Total other comprehensive income	515,874	(80,598)	94,996
Hedging Of Net Investments In Foreign Subsidiaries Operations [Member]
Disclosure of income tax [Line Items]
Amount before tax	95,329	1,124,732	(47,197)
Deferred tax expense (income) credited (charged) to OCI	145
Total other comprehensive income	95,474	1,124,732	(47,197)
Hedging Derivatives In Foreign Currency [Member]
Disclosure of income tax [Line Items]
Amount before tax	(50,318)	(547,310)	16,832
Current tax (expense) income		372,715
Deferred tax expense (income) credited (charged) to OCI	18,221	(227,807)	(5,554)
Total other comprehensive income	(32,097)	(402,402)	11,278
Hedging Financial Liabilities In Foreign Currency [Member]
Disclosure of income tax [Line Items]
Amount before tax	(47,942)	(576,881)	30,568
Current tax (expense) income	247,153
Deferred tax expense (income) credited (charged) to OCI	(229,627)	176,378	(11,065)
Total other comprehensive income	(30,416)	(400,503)	19,503
Cash Flow Hedgings [Member]
Disclosure of income tax [Line Items]
Amount before tax	13,469	(19,789)	(2,340)
Deferred tax expense (income) credited (charged) to OCI	(4,988)	6,697	969
Total other comprehensive income	8,481	(13,092)	(1,371)
Foreign Currency Translation Of Net Investments In Foreign Operations [Member]
Disclosure of income tax [Line Items]
Amount before tax	128,135	(299,804)	(91,497)
Current tax (expense) income			(12,657)
Deferred tax expense (income) credited (charged) to OCI	(1,235)	(16,006)	956
Total other comprehensive income	126,900	(315,810)	(103,198)
Investment In Associates And Joint Ventures [Member]
Disclosure of income tax [Line Items]
Amount before tax	(9,061)	(107,084)	1,128
Deferred tax expense (income) credited (charged) to OCI		11,554	116
Total other comprehensive income	(9,061)	(95,530)	1,244
Debt Financial Instruments [Member]
Disclosure of income tax [Line Items]
Amount before tax	426,300	22,400	284,480
Deferred tax expense (income) credited (charged) to OCI	(69,707)	(393)	(69,743)
Total other comprehensive income	356,593	22,007	214,737
Items that will not be reclassified to profit or loss [Member]
Disclosure of income tax [Line Items]
Amount before tax	181,847	(116,071)	(42,987)
Deferred tax expense (income) credited (charged) to OCI	4,009	(13,082)	23,361
Total other comprehensive income	185,856	(129,153)	(19,626)
Actuarial Gains Losses From Defined Benefit Pension Plans [Member]
Disclosure of income tax [Line Items]
Amount before tax	(61,222)	18,013	(100,232)
Deferred tax expense (income) credited (charged) to OCI	15,630	(7,191)	24,081
Total other comprehensive income	(45,592)	10,822	(76,151)
Equity Financial Instruments [Member]
Disclosure of income tax [Line Items]
Amount before tax	237,781	(134,084)	57,245
Deferred tax expense (income) credited (charged) to OCI	(11,288)	(5,891)	(720)
Total other comprehensive income	226,493	$ (139,975)	$ 56,525
Effect Of Moving Investment Properties For Own Use [Member]
Disclosure of income tax [Line Items]
Amount before tax	5,288
Deferred tax expense (income) credited (charged) to OCI	(333)
Total other comprehensive income	$ 4,955

INCOME TAX - Uncertainties in o

INCOME TAX - Uncertainties in open tax positions (Details) - Tax contingent liability - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 107,166	$ 121,832	$ 94,692	$ 104,156
Banco de Bogota S.A.
Disclosure of income tax [Line Items]
Tax uncertainty liability	99,808	113,345
Banco de Occidente S.A.
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 7,358	6,095
Corporacion Financiera Colombiana S.A.
Disclosure of income tax [Line Items]
Tax uncertainty liability		$ 2,392

INCOME TAX - Tax uncertainties

INCOME TAX - Tax uncertainties (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income tax [Line Items]
Adjustments due to uncertain tax positions in previous year	$ (22,113)	$ 24,277	$ (7,367)
Tax contingent liability
Disclosure of income tax [Line Items]
Balance at the beginning of the year	121,832	94,692	104,156
Adjustments due to uncertain tax positions in previous year	837	11,904	18,039
Provisions used	(4,301)	(1,088)	(873)
Amounts reversed due to provisions not used	(135)	(2,960)	(32,010)
Financial cost	(19,904)	16,421	7,477
Foreign exchange adjustments	8,836	2,863	(2,097)
Balance at the end of the year	$ 107,166	$ 121,832	$ 94,692

INCOME TAX - Tax returns expiry

INCOME TAX - Tax returns expiry (Details) - Tax contingent liability - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 107,166	$ 121,832	$ 94,692	$ 104,156
Not later than one year [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability		3,006
Later than one year and not later than two years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	33,869	27,968
Later than two years and not later than three years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	36,049	30,478
Later than three years and not later than four years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	30,221	27,276
Later than four years and not later than five years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	2,445	31,373
Later than five years and not later than six years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	1,391	1,579
Later than six years and not later than seven years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	2,736	$ 152
Later Than Eight Years And Not Later Than Nine Years [Member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	179
Later Than Nine Years And Not Later Than Ten Years [Member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 277

INCOME TAX - Textual (Details)

INCOME TAX - Textual (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)item$ / item	Dec. 31, 2018COP ($)	Dec. 31, 2017COP ($)	Dec. 31, 2016COP ($)
Disclosure of income tax [Line Items]
Applicable tax rate	33.00%	37.00%	40.00%
Unaccounted deferred tax liabilities	$ 10,176,800	$ 8,231,985
Minimum
Disclosure of income tax [Line Items]
Required percentage of increase in net income tax to get audit benefit	20.00%
Maximum
Disclosure of income tax [Line Items]
Required percentage of increase in net income tax to get audit benefit	30.00%
Tax contingent liability
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 107,166	121,832	$ 94,692	$ 104,156
Tax contingent liability | Not later than one year [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability		3,006
Tax contingent liability | Later than one year and not later than two years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	33,869	27,968
Tax contingent liability | Later than two years and not later than three years [member]
Disclosure of income tax [Line Items]
Tax uncertainty liability	36,049	30,478
Banco de Occidente S.A.
Disclosure of income tax [Line Items]
Deferred tax reversal	63,849
Income tax recovery	50,316
Banco de Occidente S.A. | Tax contingent liability
Disclosure of income tax [Line Items]
Tax uncertainty liability	7,358	6,095
Banco Popular S.A.
Disclosure of income tax [Line Items]
Deferred tax reversal	24,914
Corporacion Financiera Colombiana S.A.
Disclosure of income tax [Line Items]
Income tax recovery	17,812
Corporacion Financiera Colombiana S.A. | Tax contingent liability
Disclosure of income tax [Line Items]
Tax uncertainty liability		2,392
Banco de Bogota S.A.
Disclosure of income tax [Line Items]
Income tax recovery		109,632
Banco de Bogota S.A. | Tax contingent liability
Disclosure of income tax [Line Items]
Tax uncertainty liability	$ 99,808	$ 113,345
Bogota Panama | Subsidiaries
Disclosure of income tax [Line Items]
Applicable tax rate				0.00%
Colombia
Disclosure of income tax [Line Items]
Applicable tax rate	33.00%	33.00%	34.00%
Tax rate of special free zone	20.00%	20.00%	20.00%
Tax rate on presumptive income	1.50%	3.50%	3.50%
Number of units of tax value | item	120,000
Units of Tax value | $ / item	35,607
Probability percentage of industry and commerce tax paid	50.00%
Colombia | Not later than one year [member]
Disclosure of income tax [Line Items]
Applicable tax rate		32.00%
Percentage of reduction of presumptive income	0.50%
Colombia | Later than one year and not later than two years [member]
Disclosure of income tax [Line Items]
Applicable tax rate		31.00%
Percentage of reduction of presumptive income	0.00%
Colombia | Later than two years and not later than three years [member]
Disclosure of income tax [Line Items]
Applicable tax rate		30.00%
Probability percentage of income tax paid	100.00%	100.00%	100.00%
Colombia | Surcharge
Disclosure of income tax [Line Items]
Applicable tax rate		4.00%	6.00%
Colombia | Surcharge | Not later than one year [member]
Disclosure of income tax [Line Items]
Applicable tax rate	4.00%
Colombia | Surcharge | Later than one year and not later than two years [member]
Disclosure of income tax [Line Items]
Applicable tax rate	3.00%
Colombia | Surcharge | Later than two years and not later than three years [member]
Disclosure of income tax [Line Items]
Applicable tax rate	3.00%
Colombia | Capital gain Tax
Disclosure of income tax [Line Items]
Applicable tax rate		10.00%
Panama | Subsidiaries
Disclosure of income tax [Line Items]
Applicable tax rate	25.00%	25.00%	25.00%
Guatemala | Subsidiaries
Disclosure of income tax [Line Items]
Applicable tax rate	25.00%	25.00%	25.00%
El Salvador | Subsidiaries
Disclosure of income tax [Line Items]
Applicable tax rate	30.00%	30.00%	30.00%
Honduras
Disclosure of income tax [Line Items]
Applicable tax rate	30.00%	30.00%	30.00%
Costa Rica
Disclosure of income tax [Line Items]
Applicable tax rate	30.00%	30.00%	30.00%
Nicaragua
Disclosure of income tax [Line Items]
Applicable tax rate	30.00%	30.00%	30.00%
Peru | Subsidiaries
Disclosure of income tax [Line Items]
Applicable tax rate	29.50%	29.50%	29.50%

CUSTOMER DEPOSITS - Deposits Re

CUSTOMER DEPOSITS - Deposits Received (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Customer Deposits [Line Items]
Checking accounts	$ 42,449,702	$ 39,702,878
Savings accounts	59,352,760	57,221,439
Other funds on demand	463,770	582,122
Total demand deposits	102,266,232	97,506,439
Balances on term deposits from customers	73,225,189	66,853,012
Total Customer deposits	175,491,421	164,359,451
Colombia, Pesos
Disclosure of Customer Deposits [Line Items]
Total Customer deposits	101,427,370	99,388,366
Foreign currency
Disclosure of Customer Deposits [Line Items]
Total Customer deposits	54,963,501	48,478,108
Other currencies
Disclosure of Customer Deposits [Line Items]
Total Customer deposits	$ 19,100,550	$ 16,492,977

CUSTOMER DEPOSITS - Effective I

CUSTOMER DEPOSITS - Effective Interest Rates (Details)	Dec. 31, 2019	Dec. 31, 2018
Colombia, Pesos | Minimum | Interest Bearing Checking Accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.04%	0.04%
Colombia, Pesos | Minimum | Savings accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.01%	0.01%
Colombia, Pesos | Minimum | Fixed term deposit certificates
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.01%	0.05%
Colombia, Pesos | Maximum | Interest Bearing Checking Accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	2.50%	4.76%
Colombia, Pesos | Maximum | Savings accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	6.03%	6.00%
Colombia, Pesos | Maximum | Fixed term deposit certificates
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	11.60%	9.05%
Foreign currency | Minimum | Interest Bearing Checking Accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.03%	0.25%
Foreign currency | Minimum | Savings accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.02%	0.05%
Foreign currency | Minimum | Fixed term deposit certificates
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	0.15%	0.05%
Foreign currency | Maximum | Interest Bearing Checking Accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	5.50%	5.50%
Foreign currency | Maximum | Savings accounts
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	8.00%	8.00%
Foreign currency | Maximum | Fixed term deposit certificates
Disclosure of Customer Deposits [Line Items]
Borrowings, interest rate	10.35%	11.45%

CUSTOMER DEPOSITS - Concentrati

CUSTOMER DEPOSITS - Concentration of Deposits Received (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 175,491,421	$ 164,359,451
Concentrations of Deposits Percentage	100.00%	100.00%
Individuals
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 30,714,387	$ 26,626,082
Concentrations of Deposits Percentage	18.00%	16.00%
Commerce
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 24,234,289	$ 27,454,858
Concentrations of Deposits Percentage	14.00%	17.00%
Government and Colombian Government Entities
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 16,670,646	$ 20,817,529
Concentrations of Deposits Percentage	9.00%	13.00%
Manufacturing
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 3,192,627	$ 8,634,657
Concentrations of Deposits Percentage	2.00%	5.00%
Real Estates
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 3,703,896	$ 6,235,260
Concentrations of Deposits Percentage	2.00%	4.00%
Agriculture and livestock
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 1,256,291	$ 2,200,313
Concentrations of Deposits Percentage	1.00%	1.00%
Colombian Municipalities
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 29,302	$ 1,807,946
Concentrations of Deposits Percentage	0.00%	1.00%
Foreign Governments
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 681,466	$ 652,670
Concentrations of Deposits Percentage	0.00%	1.00%
Other
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 46,267,256	$ 44,928,212
Concentrations of Deposits Percentage	26.00%	27.00%
Financial
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 48,741,261	$ 25,001,924
Concentrations of Deposits Percentage	28.00%	15.00%

CUSTOMER DEPOSITS - Textual (De

CUSTOMER DEPOSITS - Textual (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 175,491,421	$ 164,359,451
Deposits received	23,808,900	$ 20,686,104
Education sector
Disclosure of Customer Deposits [Line Items]
Deposits from customers	2,422,713
Services sector
Disclosure of Customer Deposits [Line Items]
Deposits from customers	17,279,692
Insurance Sector [Member]
Disclosure of Customer Deposits [Line Items]
Deposits from customers	1,353,557
Transport sector
Disclosure of Customer Deposits [Line Items]
Deposits from customers	1,176,385
Tourism sector
Disclosure of Customer Deposits [Line Items]
Deposits from customers	501,073
Others in the sector
Disclosure of Customer Deposits [Line Items]
Deposits from customers	$ 23,533,836

FINANCIAL OBLIGATIONS - Interba

FINANCIAL OBLIGATIONS - Interbank borrowings, overnight funds (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Lease contracts	$ 5,778	$ 7,347
Total borrowings from banks and others	19,803,344	20,610,766
Total interbank borrowings, overnight funds and borrowings from banks and others	29,043,823	27,424,844
Colombia, Pesos
Disclosure of detailed information about borrowings [line items]
Overnight funds	9,027	4,152
Interbank funds purchased	1,595,504	173,274
Commitments to transfer open and closed repo operations	1,706,368	1,884,750
Commitments to transfer simultaneous operations	4,456,544	2,306,037
Commitments originated in short positions simultaneous operations	262,873	362,833
Total interbank funds	8,030,316	4,731,046
Borrowings	2,192,128	1,964,408
Lease contracts	1,539,871
Letters of credit		300
Bankers Acceptances	17	217
Total borrowings from banks and others	3,732,016	1,964,925
Foreign currency
Disclosure of detailed information about borrowings [line items]
Overnight funds	6,283
Interbank funds purchased	921,500	1,568,172
Commitments to transfer open and closed repo operations	282,380	514,860
Total interbank funds	1,210,163	2,083,032
Borrowings	12,336,206	17,190,315
Lease contracts	1,493,631
Andean Development Corporation	551,198	384,758
Letters of credit	622,730	356,640
Bankers Acceptances	1,008,485	664,429
Discoveries in bank current account	59,078	49,699
Total borrowings from banks and others	$ 16,071,328	$ 18,645,841

FINANCIAL OBLIGATIONS - Borrowi

FINANCIAL OBLIGATIONS - Borrowings (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Other borrowings	$ 3,882,485	$ 3,646,796
BANCOLDEX
Disclosure of detailed information about borrowings [line items]
Other borrowings	$ 1,326,045	1,303,648
BANCOLDEX | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	0.02%
BANCOLDEX | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	21.15%
BANCOLDEX | DTF | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.10%
BANCOLDEX | DTF | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.83%
BANCOLDEX | LIBOR 1 | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	2.15%
BANCOLDEX | LIBOR 1 | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.54%
BANCOLDEX | LIBOR 6 | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	2.38%
BANCOLDEX | LIBOR 6 | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.08%
BANCOLDEX | IBR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.10%
BANCOLDEX | IBR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	8.31%
FINAGRO
Disclosure of detailed information about borrowings [line items]
Other borrowings	$ 338,195	278,025
FINAGRO | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	0.50%
FINAGRO | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	15.48%
FINAGRO | DTF | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.50%
FINAGRO | DTF | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	7.00%
FINAGRO | IBR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.90%
FINAGRO | IBR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	1.90%
FINDETER
Disclosure of detailed information about borrowings [line items]
Other borrowings	$ 2,218,245	$ 2,065,123
FINDETER | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	0.25%
FINDETER | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	13.38%
FINDETER | DTF | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.60%
FINDETER | DTF | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.38%
FINDETER | IPC | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.50%
FINDETER | IPC | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.00%
FINDETER | LIBOR 6 | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.51%
FINDETER | LIBOR 6 | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.81%
FINDETER | IBR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	0.40%
FINDETER | IBR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	3.90%

FINANCIAL OBLIGATIONS - Liabili

FINANCIAL OBLIGATIONS - Liabilities maturity date (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 21,918,268	$ 20,140,350
Colombia, Pesos
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 9,234,172	8,857,766
Colombia, Pesos | Parent Company
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 03/12/2009 and 14/11/2019
Bonds issued	$ 1,201,189	1,108,713
Maturity Date	Between 28/06/2020 and 28/06/2042
Interest Rate	6.42%
Colombia, Pesos | Parent Company | CPI | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	2.69%
Colombia, Pesos | Parent Company | CPI | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.20%
Colombia, Pesos | Banco de Bogota S.A.
Disclosure of detailed information about borrowings [line items]
Issue Date	23/02/2010
Bonds issued	$ 137,598	134,736
Maturity Date	23/02/2020
Colombia, Pesos | Banco de Bogota S.A. | CPI
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.45%
Colombia, Pesos | Banco de Bogota S.A. | UVR
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.45%
Colombia, Pesos | Banco de Occidente S.A.
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 22/09/2011 and 18/09/2019
Bonds issued	$ 3,246,333	3,143,903
Maturity Date	Between 27/04/2020 and 14/12/2032
Colombia, Pesos | Banco de Occidente S.A. | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	5.83%
Colombia, Pesos | Banco de Occidente S.A. | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	6.18%
Colombia, Pesos | Banco de Occidente S.A. | CPI | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	1.75%
Colombia, Pesos | Banco de Occidente S.A. | CPI | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.65%
Colombia, Pesos | Corporacion Financiera Colombiana S.A.
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 27/08/2009 and 27/08/2019
Bonds issued	$ 2,895,156	2,853,685
Maturity Date	Between 29/01/2020 and 02/03/2043
Interest Rate	7.10%
Colombia, Pesos | Corporacion Financiera Colombiana S.A. | CPI | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	2.16%
Colombia, Pesos | Corporacion Financiera Colombiana S.A. | CPI | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	5.99%
Colombia, Pesos | Banco Popular S.A.
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 26/02/2013 and 13/02/2019
Bonds issued	$ 1,753,896	1,616,729
Maturity Date	Between 14/02/2020 and 12/10/2026
Colombia, Pesos | Banco Popular S.A. | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	6.17%
Colombia, Pesos | Banco Popular S.A. | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	8.10%
Colombia, Pesos | Banco Popular S.A. | CPI | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	2.90%
Colombia, Pesos | Banco Popular S.A. | CPI | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowing rate interest rate basis	4.13%
Foreign currency
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 12,684,096	11,282,584
Foreign currency | Banco de Bogota S.A. Bajo Regla 144A
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 19/02/2013 and 03/08/2017
Bonds issued	$ 7,109,822	7,042,678
Maturity Date	Between 19/02/2023 and 03/08/2027
Foreign currency | Banco de Bogota S.A. Bajo Regla 144A | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	4.38%
Foreign currency | Banco de Bogota S.A. Bajo Regla 144A | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	6.25%
Foreign currency | BAC Credomatic Inc.
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 1,046,769	972,598
Foreign currency | BAC Credomatic Inc. | El Salvador
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 11/02/2013 and 19/08/2019
Bonds issued	$ 726,607	753,556
Maturity Date	Between 11/02/2020 and 19/08/2024
Foreign currency | BAC Credomatic Inc. | El Salvador | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	5.20%
Foreign currency | BAC Credomatic Inc. | El Salvador | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	5.85%
Foreign currency | BAC Credomatic Inc. | Honduras
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 12/05/2017 and 15/11/2019
Bonds issued	$ 320,162	205,017
Maturity Date	Between 12/05/2020 and 11/04/2022
Foreign currency | BAC Credomatic Inc. | Honduras | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	0.75%
Foreign currency | BAC Credomatic Inc. | Honduras | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	9.50%
Foreign currency | BAC Credomatic Inc. | Guatemala
Disclosure of detailed information about borrowings [line items]
Issue Date	Between 09/07/2018 and 24/08/2018
Bonds issued		14,025
Maturity Date	Between 09/07/2019 and 26/08/2019
Foreign currency | BAC Credomatic Inc. | Guatemala | Minimum
Disclosure of detailed information about borrowings [line items]
Interest Rate	4.25%
Foreign currency | BAC Credomatic Inc. | Guatemala | Maximum
Disclosure of detailed information about borrowings [line items]
Interest Rate	5.50%
Foreign currency | Banco de Bogota SA and BAC Credomatic
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 8,156,591	8,015,276
Foreign currency | Corficolombiana
Disclosure of detailed information about borrowings [line items]
Issue Date	16/10/2019
Bonds issued	$ 1,258,876
Maturity Date	16/10/2029
Interest Rate	3.75%
Foreign currency | Grupo Aval Limited
Disclosure of detailed information about borrowings [line items]
Issue Date	19/09/2012
Bonds issued	$ 3,268,629	$ 3,267,308
Maturity Date	26/09/2022
Interest Rate	4.75%

FINANCIAL OBLIGATIONS - Reconci

FINANCIAL OBLIGATIONS - Reconciliation of movements of liabilities (Details) - COP ($) $ in Millions	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	$ 41,958,506	$ 41,958,506	$ 38,637,538	$ 37,708,846
Change in accounting policies on January 1, 2019	2,225,545
Cash flows from financing activities:
Dividends paid to shareholders		(1,266,920)	(1,128,535)	(1,307,525)
Dividends paid to non-controlling interest		(804,302)	(745,932)	(768,769)
Payment of outstanding debt securities		(1,544,225)	(1,139,897)	(3,913,694)
Acquisition of NCI without a change in control				(4,096)
Issuance of shares			988,072
Equity transaction		(67,097)	(67,157)
Issuance of debt securities (excluding interest issuance of debt securities)		3,130,254	1,095,892	4,548,108
Interest issuance of debt securities		18,633
Leases		(362,334)
Net cash used in financing activities		(895,991)	(997,557)	(1,445,976)
Cash flows from operating activities:
Accrued interest		1,426,064	1,162,699	1,162,203
Interest paid		(1,297,808)	(922,968)	(1,205,741)
Other changes		1,528,564	1,880,762	1,199,713
Total liabilities related to other changes		1,656,821	2,120,493	1,156,175
Total equity related to other changes		2,603,750	2,198,032	1,218,493
Balance at end of period		47,548,631	41,958,506	38,637,538
Issued capital [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	22,281	22,281	22,281	22,281
Cash flows from operating activities:
Balance at end of period		22,281	22,281	22,281
Additional paid-in capital
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	8,472,336	8,472,336	8,303,431	8,307,527
Cash flows from financing activities:
Acquisition of NCI without a change in control				(4,096)
Equity transaction		(26,570)	(12,674)
Net cash used in financing activities		(26,570)	(12,674)	(4,096)
Cash flows from operating activities:
Total equity related to other changes			181,579
Balance at end of period		8,445,766	8,472,336	8,303,431
Non-controlling interests [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	11,764,639	11,764,639	9,564,584	9,057,669
Cash flows from financing activities:
Issuance of shares			988,072
Equity transaction		(40,527)	(54,483)
Net cash used in financing activities		(40,527)	933,589
Cash flows from operating activities:
Other changes		(830,160)	(749,987)	(711,578)
Total liabilities related to other changes		(830,160)	(749,987)	(711,578)
Total equity related to other changes		2,603,750	2,016,453	1,218,493
Balance at end of period		13,497,702	11,764,639	9,564,584
Dividends Payable [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	535,310	535,310	590,041	644,733
Cash flows from financing activities:
Dividends paid to shareholders		(1,266,920)	(1,128,535)	(1,307,525)
Dividends paid to non-controlling interest		(804,302)	(745,932)	(768,769)
Net cash used in financing activities		(2,071,222)	(1,874,467)	(2,076,294)
Cash flows from operating activities:
Other changes		2,167,023	1,819,736	2,021,602
Total liabilities related to other changes		2,167,023	1,819,736	2,021,602
Balance at end of period		631,111	535,310	590,041
Bonds Issued [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	20,140,351	20,140,351	19,102,196	18,568,236
Cash flows from financing activities:
Payment of outstanding debt securities		(1,544,225)	(1,139,897)	(3,913,694)
Issuance of debt securities (excluding interest issuance of debt securities)		3,130,254	1,095,892	4,548,108
Interest issuance of debt securities		18,633
Net cash used in financing activities		1,604,662	(44,005)	634,414
Cash flows from operating activities:
Accrued interest		1,220,437	1,162,699	1,162,203
Interest paid		(1,103,218)	(922,968)	(1,205,741)
Other changes		56,037	842,429	(56,916)
Total liabilities related to other changes		173,255	1,082,160	(100,454)
Balance at end of period		21,918,268	20,140,351	19,102,196
Lease liabilities [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of period	1,023,589	1,023,589	1,055,005	1,108,400
Change in accounting policies on January 1, 2019	$ 2,225,545
Cash flows from financing activities:
Leases		(362,334)
Net cash used in financing activities		(362,334)
Cash flows from operating activities:
Accrued interest		205,627
Interest paid		(194,589)
Other changes		135,665	(31,416)	(53,395)
Total liabilities related to other changes		146,703	(31,416)	(53,395)
Balance at end of period		$ 3,033,502	$ 1,023,589	$ 1,055,005

FINANCIAL OBLIGATIONS - Textual

FINANCIAL OBLIGATIONS - Textual (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of deposits from financial obligations [abstract]
Amount of interbank borrowings, overnight funds and borrowings from banks and others due over 12 months	$ 8,692,991	$ 7,219,765
Simultaneous and repo operations	4,456,544	2,306,037
Guaranteed with investments	7,162,889	4,663,828
Amount of borrowings	3,633,973	3,203,170
Scheduled maturities of bonds	$ 19,908,991	$ 18,772,405

EMPLOYEE BENEFITS - Liabilities

EMPLOYEE BENEFITS - Liabilities for employee benefits (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [line items]
Gross employee Benefits	$ 1,257,736	$ 1,264,881
Plan Asset	(22,756)
Net Employee Benefits	1,234,980	1,264,881
Short-term Benefits
Disclosure of defined benefit plans [line items]
Gross employee Benefits	480,489	481,320
Post-Employment benefits
Disclosure of defined benefit plans [line items]
Gross employee Benefits	590,914	541,226
Long-Term Benefits
Disclosure of defined benefit plans [line items]
Gross employee Benefits	$ 186,333	$ 242,335

EMPLOYEE BENEFITS - Post-employ

EMPLOYEE BENEFITS - Post-employment benefit expense (Details) - Post-Employment benefits - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [line items]
Defined contribution plan	$ 73,297	$ 88,147
Defined benefit plan	$ 52,723	$ 31,336

EMPLOYEE BENEFITS - Post-empl_2

EMPLOYEE BENEFITS - Post-employment and long-term benefits movements (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of net defined benefit liability (asset) [line items]
Total changes in actuarial assumptions	$ 61,222	$ (18,013)	$ 100,232
Post-Employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Balance at the beginning of the year	541,226	604,110
Balance at the end of the year	568,158	541,226	604,110
Long-Term Benefits
Disclosure of net defined benefit liability (asset) [line items]
Balance at the beginning of the year	242,335	229,770
Balance at the end of the year	186,333	242,335	229,770
Plan obligation | Post-Employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Balance at the beginning of the year	541,226	604,110	509,022
Service costs	14,567	13,127	4,425
Interests cost	37,138	36,700	50,826
Gain on settlements		(18,300)	253
Past Service Costs	1,018	(191)	200
Net defined benefit liability asset After Adjustment	593,949	635,446	564,726
Changes in actuarial assumptions from changes in demographic assumptions	7,407	6,136	(8,863)
Changes in actuarial assumptions from changes in financial assumptions	54,674	(24,149)	109,095
Total changes in actuarial assumptions	62,081	(18,013)	100,232
Payments to employees	(63,580)	(79,709)	(59,866)
Effect of movements in exchange rates	(1,536)	3,502	(982)
Balance at the end of the year	590,914	541,226	604,110
Plan obligation | Long-Term Benefits
Disclosure of net defined benefit liability (asset) [line items]
Balance at the beginning of the year	242,335	229,770	191,112
Service costs	22,860	21,040	18,201
Interests cost	14,252	13,460	12,889
Gain on settlements			(112)
Past Service Costs	(49,400)	1,632	(3,961)
Net defined benefit liability asset After Adjustment	230,047	265,902	218,129
Changes in actuarial assumptions from changes in demographic assumptions		388	(1,432)
Changes in actuarial assumptions from changes in financial assumptions	(13,008)	11,831	43,870
Total changes in actuarial assumptions	(13,008)	12,219	42,438
Payments to employees	(30,706)	(35,786)	(30,797)
Balance at the end of the year	186,333	$ 242,335	$ 229,770
Plan Assets | Post-Employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Interests cost	(318)
Recognition of the active plan	(21,474)
Remeasurements on plan assets	(859)
Effect of movements in exchange rates	(105)
Balance at the end of the year	$ (22,756)

EMPLOYEE BENEFITS - Assumptions

EMPLOYEE BENEFITS - Assumptions (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Post-Employment benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Discount interest rate	5.87%	7.29%
Inflation rate	3.00%	3.00%
Salary growth rate	4.00%	3.00%
Pension growth rate	3.00%	3.00%
Description on actuarial assumption of employee turnover rate	Tabla de Rotación SoA 2003	Tabla de Rotación SoA 2003
Long-Term Benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Discount interest rate	5.34%	6.75%
Inflation rate	3.00%	3.00%
Salary growth rate	4.00%	3.00%
Description on actuarial assumption of employee turnover rate	Tabla de Rotación SoA 2003	Tabla de Rotación SoA 2003

EMPLOYEE BENEFITS - Sensitivity

EMPLOYEE BENEFITS - Sensitivity analysis (Details) $ in Millions	Dec. 31, 2019COP ($)
Actuarial assumption of discount rates | Post-Employment benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Decrease	$ 24,833
Increase	(20,931)
Actuarial assumption of discount rates | Long-Term Benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Decrease	4,993
Increase	(4,721)
Actuarial assumption of expected rates of salary increases | Post-Employment benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Decrease	(5,057)
Increase	5,297
Actuarial assumption of expected rates of salary increases | Long-Term Benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Decrease	(5,628)
Increase	5,904
Actuarial assumption of expected rates of pension increases | Post-Employment benefits
Disclosure Of Defined Benefit Plan Explanatory [Line Items]
Decrease	(14,827)
Increase	$ 18,921

EMPLOYEE BENEFITS - Future bene

EMPLOYEE BENEFITS - Future benefit payments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)
Post-Employment benefits | Not later than one year [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	$ 65,527
Post-Employment benefits | Later than one year and not later than two years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	58,646
Post-Employment benefits | Later than two years and not later than three years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	58,776
Post-Employment benefits | Later than three years and not later than four years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	56,645
Post-Employment benefits | Later than four years and not later than five years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	55,602
Post-Employment benefits | Later than five years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	257,815
Long-Term Benefits | Not later than one year [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	30,418
Long-Term Benefits | Later than one year and not later than two years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	24,672
Long-Term Benefits | Later than two years and not later than three years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	25,342
Long-Term Benefits | Later than three years and not later than four years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	24,512
Long-Term Benefits | Later than four years and not later than five years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	27,014
Long-Term Benefits | Later than five years [member]
Disclosure of defined benefit plans [line items]
Estimate of contributions expected to be paid to plan for next annual reporting period	$ 114,490

EMPLOYEE BENEFITS - Textual (De

EMPLOYEE BENEFITS - Textual (Details)	Dec. 31, 2019
Disclosure of defined benefit plans [abstract]
Percentage of reasonably possible increase and decrease in actuarial assumption	0.50%

LEGAL AND OTHER PROVISIONS - Ro

LEGAL AND OTHER PROVISIONS - Roll-forward of legal provisions (Details) - COP ($) $ in Millions	Jan. 01, 2019	Jan. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of provisions for legal and others
Beginning Balance	$ 695,288	$ 692,615	$ 695,288	$ 692,615	$ 620,356
Impact of the adoption of IFRS 9		16,217
Impact of the adoption of IFRS 16	32,107
Provisions increased during the period			294,233	289,159	255,019
Use of provisions			(86,899)	(222,112)	(132,655)
Amounts reversed due to provisions not utilized			(65,201)	(84,414)	(50,329)
Reclassification					224
Exchange differences			(886)	3,823
Ending Balance	727,395	708,832	868,642	695,288	692,615
Not later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			75,462
Later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			793,180
For Legal
Disclosure of provisions for legal and others
Beginning Balance	125,929	165,353	125,929	165,353	155,749
Provisions increased during the period			116,627	98,473	32,670
Use of provisions			(34,603)	(73,086)	(15,012)
Amounts reversed due to provisions not utilized			(13,296)	(64,562)	(7,870)
Reclassification					(184)
Exchange differences			23	(249)
Ending Balance	125,929	165,353	194,680	125,929	165,353
For Legal | Not later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			3,496
For Legal | Later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			191,184
Other provisions
Disclosure of provisions for legal and others
Beginning Balance	569,359	527,262	569,359	527,262	464,607
Impact of the adoption of IFRS 9		16,217
Impact of the adoption of IFRS 16	32,107
Provisions increased during the period			177,606	190,686	222,349
Use of provisions			(52,296)	(149,026)	(117,643)
Amounts reversed due to provisions not utilized			(51,905)	(19,852)	(42,459)
Reclassification					408
Exchange differences			(909)	4,072
Ending Balance	$ 601,466	$ 543,479	673,962	$ 569,359	$ 527,262
Other provisions | Not later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			71,966
Other provisions | Later than one year [member]
Disclosure of provisions for legal and others
Ending Balance			$ 601,996

LEGAL AND OTHER PROVISIONS - Le

LEGAL AND OTHER PROVISIONS - Legal provisions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)m²	Dec. 31, 2018COP ($)
Disclosure of provisions for legal and others
Legal proceedings provision	$ 194,680	$ 125,929
Other provisions	$ 673,962	569,359
Area of land under litigation | m²	37,018
Porvenir S.A. and its subsidiary
Disclosure of provisions for legal and others
Other provisions	$ 233,128	206,786
Administrative and other proceedings
Disclosure of provisions for legal and others
Provisions for administrative and other proceedings attributable to contracts	18,391	12,296
Labor proceedings
Disclosure of provisions for legal and others
Legal proceedings provision	38,848	41,618
Other provisions
Disclosure of provisions for legal and others
Legal proceedings provision	137,441	72,015
Other provisions	673,962	569,359
Other provisions | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A.
Disclosure of provisions for legal and others
Legal proceedings provision	105,118	20,937
Other provisions | Corporacion Financiera Colombiana S.A.
Disclosure of provisions for legal and others
Other provisions	259,185	242,446
Other provisions | Compania Hotelera Cartagena de Indias
Disclosure of provisions for legal and others
Legal proceedings provision	24,815	24,815
Provision for decommissioning, restoration and rehabilitation costs
Disclosure of provisions for legal and others
Other provisions	85,385	46,868
Provision for credit commitments
Disclosure of provisions for legal and others
Other provisions	$ 49,962	$ 59,428

OTHER LIABILITIES - Accounts pa

OTHER LIABILITIES - Accounts payable and other liabilities (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
OTHER LIABILITIES
Suppliers and services payable	$ 1,877,694	$ 1,846,831
Income received for third parties	1,338,265	453,450
Cashier checks	789,680	690,195
Dividends payable	631,111	535,311
Transactions ACH and ATH	585,526	605,657
Contract liability related to concessions	539,584	535,960
Non-financial liabilities	507,513	478,833
Withholdings taxes and labor contributions	471,201	427,782
Commissions and fees	290,160	430,279
Collection service	282,184	314,785
Collection on behalf of third parties	250,769	1,514,309
Cash surplus	235,840	167,309
Affiliate establishments	169,807	335,078
Customer loyalty programs	150,846	154,979
Tax levies	86,568	71,691
Checks drawn and not paid	46,220	48,864
Anticipated income	39,427	34,605
Canceled accounts	28,524	26,987
Contributions and affiliations	27,004	28,785
Insurance payables	26,767	48,505
Financial transactions tax	22,280	45,905
Promissory buyers	8,601	18,371
Leases	5,778	7,347
Compensation to customers	2,102	3,191
Deferred credits	1,075	938
Other liabilities	314,856	182,006
Total	8,729,382	$ 9,007,953
Advance payment by (ANI)	$ 857,990
Validity period for customer loyalty points	2 years

OTHER LIABILITIES - Other liabi

OTHER LIABILITIES - Other liabilities (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [line items]
Other liabilities	$ 8,729,382	$ 9,007,953
Not later than one year [member]
Disclosure of financial liabilities [line items]
Other liabilities	5,946,523	6,970,611
Later than one year [member]
Disclosure of financial liabilities [line items]
Other liabilities	$ 2,782,859	$ 2,037,342

EQUITY ATTRIBUTABLE TO OWNERS_3

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Authorized, issued and outstanding (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of controlling interest equity [Line Items]
Authorized shares	120,000,000,000	120,000,000,000
Subscribed fully paid shares	22,281,017,159	22,281,017,159
Subscribed but pending to be paid shares Total outstanding shares	22,281,017,159	22,281,017,159
Number of shares outstanding	22,281,017,159	22,281,017,159	22,281,017,159	22,281,017,159
Non-controlling interests	$ 13,497,702	$ 11,764,639
Corficolombiana S.A | Maximum
Disclosure of controlling interest equity [Line Items]
Participation percentage	38.25%
Corficolombiana S.A | Minimum
Disclosure of controlling interest equity [Line Items]
Participation percentage	38.63%
Non-controlling interests [member] | Proyectos de Infraestructura S.A. - PISA
Disclosure of controlling interest equity [Line Items]
Non-controlling interests	$ 67,097
Number of shares issued	290,061,750
Proportion of ownership interests held by non-controlling interests	49.50%
Non-controlling interests [member] | Proyectos de Infraestructura S.A. - PISA | Maximum
Disclosure of controlling interest equity [Line Items]
Proportion of ownership interest in subsidiary	100.00%
Non-controlling interests [member] | Proyectos de Infraestructura S.A. - PISA | Minimum
Disclosure of controlling interest equity [Line Items]
Proportion of ownership interest in subsidiary	50.50%
Common voting shares [Member]
Disclosure of controlling interest equity [Line Items]
Number of shares outstanding	15,137,789,974	15,164,816,696
Preferred non-voting shares [Member]
Disclosure of controlling interest equity [Line Items]
Number of shares outstanding	7,143,227,185	7,116,200,463

EQUITY ATTRIBUTABLE TO OWNERS_4

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Appropriated retained earnings (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of controlling interest equity [Abstract]
Retained earnings	$ 2,475,939	$ 2,321,729
Withholding Tax over dividends	(14,344)
Legal reserve	11,140	11,140
Statutory and voluntary reserves	7,816,338	6,265,450
Retained earnings	$ 10,289,073	$ 8,598,319

EQUITY ATTRIBUTABLE TO OWNERS_5

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Declared Dividends (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)installment$ / sharesshares	Dec. 31, 2018COP ($)installment$ / sharesshares	Dec. 31, 2017COP ($)installment$ / sharesshares	Dec. 31, 2016COP ($)installment$ / sharesshares
Disclosure of controlling interest equity [Abstract]
Net income for the periods ended in | $	$ 3,031,238	$ 2,887,749	$ 2,001,178	$ 1,053,594
Cash dividends declared information	At the General Meeting of Shareholders that took place on March 30, 2020, it was declared a dividend of 5.00 per month for the preferred and common shares, during period of twelve-month between April, 2020 and March 2021	In the general assembly held in March 2019, 60.00 pesos per share payable in twelve installments of 5.00 pesos per share, from April 2019 to March 2020.	In the general assembly held in March 2018, 48.00 pesos per share payable in twelve installments of 4.00 pesos per share, from April 2018 to March 2019.	In the general assembly held in March 2017, 58.80 pesos per share payable in twelve installments of 4.90 pesos per share, from April 2017 to March 2018.
Cash dividends declared | $ / shares	$ 60	$ 60	$ 48	$ 58.80
Number of installments dividends payable | installment	12	12	12	12
Cash dividend declared, per installment | $ / shares	$ 5	$ 5	$ 4	$ 4.90
Number of shares outstanding | shares	22,281,017,159	22,281,017,159	22,281,017,159	22,281,017,159
Total dividends declared | $	$ 1,336,861	$ 1,336,861	$ 1,069,489	$ 1,310,124

EQUITY ATTRIBUTABLE TO OWNERS_6

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Earnings per share (Details) - COP ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of controlling interest equity [Line Items]
Net income for the year	$ 5,365,454	$ 5,184,551	$ 3,162,433
Less: participation of non- controlling interests	(2,331,045)	(2,271,857)	(1,200,019)
Net income attributable to owners of the parents	3,034,409	2,912,694	1,962,414
Less: Allocation of undistributed earnings to preferred stockholders	(970,070)	(929,656)	(622,215)
Net Income allocated to common shareholders for basic and diluted EPS	$ 2,064,339	$ 1,983,038	$ 1,340,199
Weighted average of the common and preferred shares used in the calculation of earnings per basic share (common and preferred)	22,281,017,159	22,281,017,159	22,281,017,159
Basic earnings of the owners of the parent per share in Colombian pesos	$ 136.188	$ 130.725	$ 88.076
Common shares
Disclosure of controlling interest equity [Line Items]
Weighted average number of common shares outstanding used in basic EPS calculation (2)	15,158,004,812	15,169,502,784	15,216,468,601
Basic and diluted earnings (loss) per share	$ 136.188	$ 130.725	$ 88.076
ADR [Member]
Disclosure of controlling interest equity [Line Items]
Basic and diluted earnings (loss) per share	$ 2,723.76	$ 2,614.51	$ 1,761.51

EQUITY ATTRIBUTABLE TO OWNERS_7

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Consolidated Other Comprehensive Income (OCI) (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of analysis of other comprehensive income by item [line items]
Balance	$ 29,554,348	$ 25,871,227	$ 24,659,222
Balance	33,348,269	29,554,348	25,871,227
Accumulated other comprehensive income including non-controlling interests
Disclosure of analysis of other comprehensive income by item [line items]
Balance	1,248,772	1,354,510	1,279,140
Change in accounting policy		104,013
Current period change	701,730	(209,751)	75,370
Balance	1,950,502	1,248,772	1,354,510
AOCI related to foreign currency translation differences from hedged foreign operations
Disclosure of analysis of other comprehensive income by item [line items]
Balance	(206,783)	(207,324)	(207,527)
Current period change	(2,931)	541	203
Balance	(209,714)	(206,783)	(207,324)
AOCI related to revaluation investment properties
Disclosure of analysis of other comprehensive income by item [line items]
Current period change	5,288
Balance	5,288
AOCI related to cash flow hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance	(14,343)	5,446	7,786
Current period change	13,469	(19,789)	(2,340)
Balance	(874)	(14,343)	5,446
AOCI related to foreign currency translation differences from unhedged foreign operations
Disclosure of analysis of other comprehensive income by item [line items]
Balance	(466,212)	(166,408)	(74,911)
Current period change	128,135	(299,804)	(91,497)
Balance	(338,077)	(466,212)	(166,408)
AOCI related to debt securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance	(38,622)	12,264	(272,216)
Change in accounting policy		56,198
Current period change	426,300	(107,084)	284,480
Balance	387,678	(38,622)	12,264
AOCI related to equity securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance	484,274	547,129	489,884
Change in accounting policy		71,229
Current period change	237,781	(134,084)	57,245
Balance	722,055	484,274	547,129
Investments in associates and joint ventures
Disclosure of analysis of other comprehensive income by item [line items]
Balance	111,346	92,637	91,509
Change in accounting policy		(3,691)
Current period change	(9,061)	22,400	1,128
Balance	102,285	111,346	92,637
Actuarial Gains Losses From Defined Benefit Pension Plan
Disclosure of analysis of other comprehensive income by item [line items]
Balance	(114,444)	(132,457)	(32,225)
Current period change	(61,222)	18,013	(100,232)
Balance	(175,666)	(114,444)	(132,457)
Income tax relating to OCI
Disclosure of analysis of other comprehensive income by item [line items]
Balance	1,493,556	1,203,223	1,276,840
Change in accounting policy		(19,723)
Current period change	(36,029)	310,056	(73,617)
Balance	$ 1,457,527	$ 1,493,556	$ 1,203,223

EQUITY ATTRIBUTABLE TO OWNERS_8

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Consolidated Other Comprehensive Income (OCI) (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of analysis of other comprehensive income by item [line items]
Balance	$ 29,554,348	$ 25,871,227	$ 24,659,222
Balance	33,348,269	29,554,348	25,871,227
Accumulated other comprehensive income including non-controlling interests
Disclosure of analysis of other comprehensive income by item [line items]
Balance	1,248,772	1,354,510	1,279,140
Change in accounting policy		104,013
Current period change	701,730	(209,751)	75,370
Balance	1,950,502	1,248,772	1,354,510
Accumulated other comprehensive income attributable to non-controlling interests
Disclosure of analysis of other comprehensive income by item [line items]
Balance	551,999	567,644	529,523
Change in accounting policy		58,180
Current period change	305,056	(73,825)	38,121
Balance	857,055	551,999	567,644
Accumulated other comprehensive income [member]
Disclosure of analysis of other comprehensive income by item [line items]
Balance	696,773	786,866	749,617
Change in accounting policy		45,833
Current period change	396,674	(135,926)	37,249
Balance	$ 1,093,447	$ 696,773	$ 786,866

EQUITY ATTRIBUTABLE TO OWNERS_9

EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Textual (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of controlling interest equity [Line Items]
Nominal value per share	$ 1
Legal reserve as percentage of net profit	10.00%
Maximum legal reserve as percentage of subscription capital stock	50.00%
Common stock conversion to Preferred Stock	27,026,722	8,364,069
Description of preferential rights of preferred shareholders	Preferred shares have the right to receive a preferential minimum dividend of one Colombian peso (Ps. 1) per semester per share. This preferential minimum dividend is only applicable when dividends declared for common shares are less than one Colombian peso (Ps. 1). Preferential minimum dividends are not cumulative.
Description of creation of reserve through appropriation	create a legal reserve through the appropriation of (10%) of the net profits of each year up to an amount equal to (50%) of the subscribed capital stock. This reserve may be reduced below (50%) of the subscribed capital stock to stem losses in excess of retained earnings. The legal reserve cannot be less than the percentage aforementioned except to cover losses in excess of retained earnings.
Number of preferred shares per ADS	20	20	20
Preference shares
Disclosure of controlling interest equity [Line Items]
Preferential minimum dividend per semester per share	$ 1

NON-CONTROLLING INTEREST - Fina

NON-CONTROLLING INTEREST - Financial information (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of non-controlling interest [Line Items]
Non-controlling Interest share of equity	$ 13,497,702	$ 11,764,639
Non-controlling interest share of net income	2,331,045	2,271,857	$ 1,200,019
Dividends paid to non-controlling interest	$ (804,302)	$ (745,932)	$ (768,769)
Corporacion Financiera Colombiana S.A.
Disclosure of non-controlling interest [Line Items]
Country	Colombia	Colombia
Non-controlling Interest	61.37%	61.75%
Non-controlling Interest share of equity	$ 6,045,690	$ 5,071,562
Non-controlling interest share of net income	1,231,081	1,222,634
Dividends paid to non-controlling interest	$ (319,429)	$ (308,254)
Banco de Bogota S.A.
Disclosure of non-controlling interest [Line Items]
Country	Colombia	Colombia
Non-controlling Interest	31.26%	31.26%
Non-controlling Interest share of equity	$ 5,813,830	$ 5,851,536
Non-controlling interest share of net income	876,732	858,253
Dividends paid to non-controlling interest	$ (381,111)	$ (332,297)
Banco de Occidente S.A.
Disclosure of non-controlling interest [Line Items]
Country	Colombia	Colombia
Non-controlling Interest	27.73%	27.73%
Non-controlling Interest share of equity	$ 1,068,830	$ 305,790
Non-controlling interest share of net income	156,587	110,321
Dividends paid to non-controlling interest	$ (78,235)	$ (75,838)
Banco Commercial Av Villas S A
Disclosure of non-controlling interest [Line Items]
Country	Colombia	Colombia
Non-controlling Interest	20.13%	20.13%
Non-controlling Interest share of equity	$ 348,711	$ 324,151
Non-controlling interest share of net income	46,705	43,896
Dividends paid to non-controlling interest	$ (16,508)	$ (15,425)
Banco Popular S.A.
Disclosure of non-controlling interest [Line Items]
Country	Colombia	Colombia
Non-controlling Interest	6.26%	6.26%
Non-controlling Interest share of equity	$ 220,641	$ 211,600
Non-controlling interest share of net income	19,940	36,753
Dividends paid to non-controlling interest	$ (9,019)	$ (14,118)

NON-CONTROLLING INTEREST - Non-

NON-CONTROLLING INTEREST - Non-controlling interests (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of non-controlling interest [Line Items]
Assets	$ 278,832,589	$ 259,675,153
Liabilities	245,484,320	230,120,805
Revenue	37,055,156	34,083,225	$ 31,659,852
Profit (loss)	5,365,454	5,184,551	3,162,433
Comprehensive income	6,067,184	4,974,800	3,237,803
Cash flows from (used in) operating activities	5,634,994	8,731,562	$ 5,108,316
Corporacion Financiera Colombiana S.A.
Disclosure of non-controlling interest [Line Items]
Assets	31,809,578	26,240,636
Liabilities	21,841,524	18,121,948
Revenue	10,244,488	9,159,971
Profit (loss)	2,004,164	2,068,518
Comprehensive income	780,447	505,807
Cash flows from (used in) operating activities	2,006,112	4,597,371
Banco de Bogota S.A.
Disclosure of non-controlling interest [Line Items]
Assets	175,019,580	163,302,510
Liabilities	153,159,578	143,634,735
Revenue	19,207,112	17,725,706
Profit (loss)	3,073,654	3,131,213
Comprehensive income	1,378,393	853,134
Cash flows from (used in) operating activities	6,671,466	2,868,435
Banco de Occidente S.A.
Disclosure of non-controlling interest [Line Items]
Assets	42,577,698	38,921,610
Liabilities	37,708,620	34,415,453
Revenue	4,296,870	4,040,260
Profit (loss)	568,059	416,294
Comprehensive income	102,338	29,097
Cash flows from (used in) operating activities	(570,873)	339,411
Banco Commercial Av Villas S A
Disclosure of non-controlling interest [Line Items]
Assets	15,207,537	14,207,481
Liabilities	13,412,397	12,587,301
Revenue	1,823,204	1,724,332
Profit (loss)	236,624	216,468
Comprehensive income	62,949	38,065
Cash flows from (used in) operating activities	231,652	858,440
Banco Popular S.A.
Disclosure of non-controlling interest [Line Items]
Assets	25,117,577	24,648,668
Liabilities	22,047,597	21,757,734
Revenue	2,757,661	2,666,731
Profit (loss)	302,120	354,961
Comprehensive income	2,134	(7,631)
Cash flows from (used in) operating activities	$ (931,478)	$ 1,106,042

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Dec. 06, 2018COP ($)	Sep. 13, 2018COP ($)	Dec. 31, 2019COP ($)item	Dec. 31, 2018COP ($)
Disclosure of contingent liabilities [line items]
Capital commitments			$ 311,729	$ 127,367
Number of legal charges | item			2
Amount litigation settlement	$ 800,156	$ 87,780
Debarment defendants	10 years
Settlement amount	$ 715,656
Loss Contingency, maximum impact		$ 234,602	$ 276,445
Estudios y Proyectos del Sol S.A.S.
Disclosure of contingent liabilities [line items]
Proportion of voting rights held in subsidiary			100.00%
Proportion of participation interest in subsidiary			33.00%
Labor proceedings
Disclosure of contingent liabilities [line items]
Estimated financial effect of contingent liabilities			$ 85,663	80,113
Civil proceedings
Disclosure of contingent liabilities [line items]
Estimated financial effect of contingent liabilities			305,198	391,310
Administrative and other proceedings
Disclosure of contingent liabilities [line items]
Estimated financial effect of contingent liabilities			$ 64,077	$ 241,092

INCOME FROM CONTRACTS WITH CU_3

INCOME FROM CONTRACTS WITH CUSTOMERS - Income and Expenses (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income From Contract With Customers [Abstract]
Commissions on banking services	$ 3,006,506	$ 2,718,482	$ 2,567,704
Fees on credit cards	1,364,244	1,187,716	1,112,319
Pension and severance fund management	1,129,391	987,323	926,771
Trust activities	334,910	312,901	311,837
Storage services	161,298	156,638	169,815
Commissions on drafts, checks and checkbooks	50,026	49,645	60,768
Office network services	24,618	30,220	42,639
Other commissions	12,350	10,457	10,272
Total income for commission and fees	6,083,343	5,453,382	5,202,125
Banking Services	(311,098)	(307,191)	(332,811)
Sales and Services Commissions	(184,481)	(171,680)	(119,987)
Fees paid to pension funds sales forces	(94,285)	(75,130)	(74,531)
Information Processing Services of Operators	(17,969)	(22,525)	(23,039)
Offices Network Services	(8,508)	(23,040)	(29,874)
Collection Service of Contributions to Financial Entities	(1,177)	(7,110)	(5,618)
Banks Guarantees	(18)	(128)	(88)
Fiduciary Businesses	(61)	(46)	(41)
Credit Cards	(6)	(12)	(2)
Other	(10,396)	(6,901)	(37,123)
Total expenses from commissions and fees	(627,999)	(613,763)	(623,114)
Net commission and fee income	$ 5,455,344	$ 4,839,619	$ 4,579,011

INCOME FROM CONTRACTS WITH CU_4

INCOME FROM CONTRACTS WITH CUSTOMERS - Income and Cost for Goods and Services (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Income From Contract With Customers [Line Items]
Others operating income	$ 139,575	$ 182,594	$ 136,379
Total income from sales of good and services	9,156,588	8,126,014	5,792,850
Cost of sales	(5,041,089)	(3,812,993)	(3,408,808)
Allowance for impairment of loans and receivables	(43,401)	(21,829)	(22,239)
General and administrative expenses	(659,262)	(645,690)	(668,616)
Personnel expenses	(555,038)	(499,750)	(481,892)
Amortization	(267,808)	(317,035)	(300,325)
Depreciation	(98,963)	(100,388)	(79,981)
Depreciation right of use assets	(30,425)
Bonus payments	(36,300)	(34,503)	(34,436)
Commissions and fees expenses	(30,885)	(32,876)	(24,361)
Donations expenses	(14,704)	(14,320)	(12,604)
Labor severances	(3,902)	(2,718)	(2,565)
Total costs for goods and services	(6,781,777)	(5,482,102)	(5,035,827)
Gross profit from sales of goods and services	2,374,811	2,643,912	757,023
Energy And Gas E & G
Disclosure Of Income From Contract With Customers [Line Items]
Income from goods and services from non-financial sector	4,524,903	3,411,674	2,908,292
Infrastructure
Disclosure Of Income From Contract With Customers [Line Items]
Income from goods and services from non-financial sector	3,783,534	3,826,101	2,290,786
Hotels
Disclosure Of Income From Contract With Customers [Line Items]
Income from goods and services from non-financial sector	366,835	332,749	236,760
Agro
Disclosure Of Income From Contract With Customers [Line Items]
Income from goods and services from non-financial sector	135,928	133,095	87,800
Others Services
Disclosure Of Income From Contract With Customers [Line Items]
Income from goods and services from non-financial sector	$ 205,813	$ 239,801	$ 132,833

NET TRADING INCOME (Details)

NET TRADING INCOME (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Net Trading Income [Line Items]
Net trading income	$ 761,911	$ 582,709	$ 561,362
Derivatives
Disclosure Of Net Trading Income [Line Items]
Net trading income	142,075	427,208	164,920
Net income (loss) on financial derivatives	19,932	247,880	(75,224)
Other trading income	122,143	179,328	240,144
Trading securities
Disclosure Of Net Trading Income [Line Items]
Fixed income securities	270,310	98,024	218,994
Equities	349,526	57,477	177,448
Net trading income	$ 619,836	$ 155,501	$ 396,442

OTHER INCOME AND EXPENSE - Othe

OTHER INCOME AND EXPENSE - Other income - Tabular disclosure (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of other income and expense [abstract]
Foreign exchange gains (losses), net	$ 312,267	$ 283,440	$ 424,483
Share of profit of equity accounted investees, net of tax	229,626	197,715	171,964
Net gain on sale of debt and equity securities	198,562	1,104	51,712
Dividends	84,686	71,487	50,439
Gain on the sale of non-current assets held for sale	23,381	20,062	13,568
Gain on sale of assets properties, plant and equipment	24,381	390,472	10,581
Net gain in assets valuation	14,151	37,307	39,012
Other income	395,909	357,094	389,986
Total	$ 1,282,963	$ 1,358,681	$ 1,151,745

OTHER INCOME AND EXPENSE - Ot_2

OTHER INCOME AND EXPENSE - Other income - Sale of fixed income investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019COP ($)
Debt securities | Investment securities at fair value | Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Profit on sale of investment	$ 197,458

OTHER INCOME AND EXPENSE - Ot_3

OTHER INCOME AND EXPENSE - Other income - Recognition of income from sales with subsequent leasing of assets (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [line items]
Gain on sale of assets properties, plant and equipment	$ 24,381	$ 390,472	$ 10,581
Banco de Bogota S.A.
Disclosure of operating segments [line items]
Gain on sale of assets properties, plant and equipment		312,316
Banco Popular S.A.
Disclosure of operating segments [line items]
Gain on sale of assets properties, plant and equipment		$ 60,474

OTHER INCOME AND EXPENSE - Ot_4

OTHER INCOME AND EXPENSE - Other expense - Tabular disclosure (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of other income and expense [abstract]
Personnel expenses	$ (4,085,396)	$ (3,877,584)	$ (3,671,117)
Taxes and fees	(914,476)	(757,936)	(731,316)
Depreciation	(416,946)	(378,218)	(383,911)
Consultancy, audit and other fees	(661,645)	(569,276)	(460,978)
Affiliation contributions and transfers	(664,835)	(511,811)	(429,825)
Wealth tax			(101,988)
Leases (Rent)	(175,002)
Leases (Rent)		(476,590)	(431,507)
Maintenance and repairs	(458,522)	(378,433)	(392,271)
Insurance	(382,322)	(375,611)	(351,745)
Marketing	(351,104)	(327,539)	(314,657)
Depreciation right of use assets	(292,771)
Warehouse services	(277,574)	(270,223)	(277,849)
Amortization of intangible assets	(191,768)	(161,533)	(137,497)
Transportation services	(184,720)	(181,687)	(166,429)
Impairment losses other assets	(20,755)	(166,300)	(174,255)
Loss from sale of non-current assets held for sale	(4,392)	(5,200)	(6,957)
Outsourcing services expenses	(149,280)	(128,495)	(128,656)
Cleaning and security services	(137,721)	(126,822)	(131,451)
Supplies and stationary	(103,104)	(85,128)	(82,113)
Data processing	(83,542)	(81,426)	(73,872)
Adaptation and installation	(58,904)	(55,815)	(62,809)
Travel expenses	(58,663)	(52,584)	(48,193)
Other	(497,907)	(402,822)	(443,695)
Total	$ (10,171,349)	$ (9,371,033)	$ (9,003,091)

OTHER INCOME AND EXPENSE - Ot_5

OTHER INCOME AND EXPENSE - Other expense - Additional information (Details)	Dec. 31, 2018
Concesionaria Ruta Del Sol S.A.S. [Member]
Disclosure of joint ventures [line items]
Investment provisioned (as a percent)	100.00%

ANALYSIS OF OPERATING SEGMENT_2

ANALYSIS OF OPERATING SEGMENTS - Statement of financial position (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets
Trading assets	$ 9,113,668	$ 7,204,312
Investment securities	26,000,311	23,030,159
Hedging derivative assets	166,598	30,138
Investments in associates and joint ventures	987,962	982,743
Loans and receivables	173,942,317	168,685,654
Other Assets	68,621,733	59,742,147
Total Assets	278,832,589	259,675,153
Liabilities
Customer Deposits	175,491,421	164,359,451
Borrowings	54,844,576	51,211,990
Other Liabilities	15,148,323	14,549,364
Total Liabilities	245,484,320	230,120,805
Banco de Bogota S.A.
Assets
Trading assets	4,199,830	3,086,060
Investment securities	14,721,063	11,238,754
Hedging derivative assets	163,004	32,981
Investments in associates and joint ventures	4,752,358	4,157,015
Loans and receivables	113,110,128	111,018,238
Other Assets	38,073,197	33,769,462
Total Assets	175,019,580	163,302,510
Liabilities
Customer Deposits	117,794,986	108,404,522
Borrowings	29,359,125	28,560,065
Other Liabilities	6,005,467	6,670,148
Total Liabilities	153,159,578	143,634,735
Banco de Occidente S.A.
Assets
Trading assets	2,730,366	1,670,934
Investment securities	4,487,707	5,070,964
Investments in associates and joint ventures	1,434,246	1,247,935
Loans and receivables	29,374,122	26,996,654
Other Assets	4,551,257	3,935,123
Total Assets	42,577,698	38,921,610
Liabilities
Customer Deposits	28,726,381	25,592,232
Borrowings	7,195,231	6,881,717
Other Liabilities	1,787,008	1,941,504
Total Liabilities	37,708,620	34,415,453
Banco Popular S.A.
Assets
Trading assets	284,790	235,283
Investment securities	2,556,181	2,900,778
Investments in associates and joint ventures	486,524	396,289
Loans and receivables	19,260,152	18,287,166
Other Assets	2,529,930	2,829,152
Total Assets	25,117,577	24,648,668
Liabilities
Customer Deposits	16,988,939	17,571,388
Borrowings	3,955,801	3,139,013
Other Liabilities	1,102,857	1,047,333
Total Liabilities	22,047,597	21,757,734
Banco Commercial Av Villas S A
Assets
Trading assets	295,234	302,226
Investment securities	1,675,897	1,225,551
Investments in associates and joint ventures	3,027	2,347
Loans and receivables	11,671,190	11,027,826
Other Assets	1,562,189	1,649,531
Total Assets	15,207,537	14,207,481
Liabilities
Customer Deposits	11,851,426	11,425,400
Borrowings	1,078,588	647,872
Other Liabilities	482,383	514,029
Total Liabilities	13,412,397	12,587,301
Corporacion Financiera Colombiana S.A.
Assets
Trading assets	1,729,563	1,987,205
Investment securities	3,316,757	3,189,297
Hedging derivative assets	3,594	43
Investments in associates and joint ventures	752,060	759,222
Loans and receivables	2,115,859	2,575,561
Other Assets	23,891,745	17,729,308
Total Assets	31,809,578	26,240,636
Liabilities
Customer Deposits	4,067,504	3,805,028
Borrowings	12,152,007	9,673,342
Other Liabilities	5,622,013	4,643,578
Total Liabilities	21,841,524	18,121,948
All other segments
Assets
Trading assets	187	212
Investments in associates and joint ventures	405
Other Assets	4,129,975	3,924,117
Total Assets	4,130,567	3,924,329
Liabilities
Borrowings	4,484,293	4,376,021
Other Liabilities	519,887	443,591
Total Liabilities	5,004,180	4,819,612
Elimination of intersegment amounts [member]
Assets
Trading assets	(126,302)	(77,608)
Investment securities	(757,294)	(595,185)
Hedging derivative assets		(2,886)
Investments in associates and joint ventures	(6,440,658)	(5,580,065)
Loans and receivables	(1,589,134)	(1,219,791)
Other Assets	(6,116,560)	(4,094,546)
Total Assets	(15,029,948)	(11,570,081)
Liabilities
Customer Deposits	(3,937,815)	(2,439,119)
Borrowings	(3,380,469)	(2,066,040)
Other Liabilities	(371,292)	(710,819)
Total Liabilities	$ (7,689,576)	$ (5,215,978)

ANALYSIS OF OPERATING SEGMENT_3

ANALYSIS OF OPERATING SEGMENTS - Statement of income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income
Interest income	$ 19,552,735	$ 18,356,636	$ 18,741,833
Income for commission and fees	6,083,343	5,453,382	5,202,125
Income from sales of goods and services	9,156,588	8,126,014	5,792,850
Participation in profit or loss associates and joint business	229,626	197,715	171,964
Dividends	84,686	71,487	50,439
Other Income	1,948,178	1,877,991	1,700,641
Total income	37,055,156	34,083,225	31,659,852
Expenses
Interest expense	(8,267,217)	(7,484,841)	(8,227,699)
Impairment loss on loan and other accounts receivable	(4,193,980)	(4,149,972)	(4,119,334)
Depreciation and amortization	(901,485)	(539,751)	(521,408)
Expenses from commissions and fees	(627,999)	(613,763)	(623,114)
Costs and expenses of sales goods and services	(6,781,777)	(5,482,102)	(5,035,827)
Administrative expenses	(4,954,307)	(4,640,460)	(4,513,148)
Other expense	(3,876,680)	(3,838,195)	(3,704,095)
Income tax expense	(2,086,257)	(2,149,590)	(1,752,794)
Total Expenses	(31,689,702)	(28,898,674)	(28,497,419)
Net income for the year	5,365,454	5,184,551	3,162,433
Banco de Bogota S.A.
Income
Interest income	12,279,546	11,136,903	11,241,897
Income for commission and fees	4,948,265	4,394,989	4,187,221
Income from sales of goods and services	107,012	130,007	104,277
Participation in profit or loss associates and joint business	10,633	6,126	5,847
Dividends	4,878	4,855	1,321
Other Income	1,183,179	1,211,601	954,355
Total income	18,533,513	16,884,481	16,494,918
Expenses
Interest expense	(4,879,514)	(4,328,845)	(4,594,100)
Impairment loss on loan and other accounts receivable	(2,767,818)	(2,610,893)	(2,459,293)
Depreciation and amortization	(631,835)	(363,264)	(361,621)
Expenses from commissions and fees	(382,972)	(362,810)	(351,073)
Costs and expenses of sales goods and services	(235,928)	(254,904)	(238,836)
Administrative expenses	(3,406,083)	(3,171,147)	(3,035,346)
Other expense	(2,830,267)	(2,552,588)	(2,491,823)
Income tax expense	(999,041)	(950,042)	(970,207)
Total Expenses	(16,133,458)	(14,594,493)	(14,502,299)
Net income for the year	3,073,654	3,131,213	2,132,951
Banco de Occidente S.A.
Income
Interest income	3,107,030	3,087,525	3,450,056
Income for commission and fees	423,571	399,785	396,658
Income from sales of goods and services	58,947	65,916	62,294
Participation in profit or loss associates and joint business	4,272	2,688	2,402
Dividends	336	286	370
Other Income	262,541	152,866	194,155
Total income	3,856,697	3,709,066	4,105,935
Expenses
Interest expense	(1,228,385)	(1,135,189)	(1,388,144)
Impairment loss on loan and other accounts receivable	(867,085)	(1,014,420)	(993,350)
Depreciation and amortization	(107,651)	(77,174)	(69,255)
Expenses from commissions and fees	(85,289)	(71,570)	(94,089)
Costs and expenses of sales goods and services	(305,866)	(242,943)	(206,532)
Administrative expenses	(725,963)	(699,653)	(703,106)
Other expense	(347,474)	(418,471)	(390,812)
Income tax expense	(61,098)	35,454	(115,778)
Total Expenses	(3,728,811)	(3,623,966)	(3,961,066)
Net income for the year	568,059	416,294	377,687
Banco Popular S.A.
Income
Interest income	2,297,087	2,192,941	2,196,753
Income for commission and fees	263,985	245,721	224,233
Income from sales of goods and services		12,124	58,184
Participation in profit or loss associates and joint business	5,232	3,083	2,622
Dividends	1,155	2,314	1,991
Other Income	97,372	132,562	63,157
Total income	2,664,831	2,588,745	2,546,940
Expenses
Interest expense	(880,056)	(850,707)	(977,441)
Impairment loss on loan and other accounts receivable	(350,302)	(186,622)	(258,926)
Depreciation and amortization	(82,028)	(50,819)	(45,417)
Expenses from commissions and fees	(65,713)	(89,515)	(86,228)
Costs and expenses of sales goods and services		(13,962)	(26,764)
Administrative expenses	(640,153)	(564,289)	(520,204)
Other expense	(384,756)	(402,933)	(334,944)
Income tax expense	(52,533)	(152,923)	(108,914)
Total Expenses	(2,455,541)	(2,311,770)	(2,358,838)
Net income for the year	302,120	354,961	205,694
Banco Commercial Av Villas S A
Income
Interest income	1,460,981	1,383,023	1,305,784
Income for commission and fees	281,324	261,769	250,824
Income from sales of goods and services	(5,466)
Participation in profit or loss associates and joint business	3,819	2,550	2,043
Dividends	1,795	1,399	1,514
Other Income	53,340	53,724	62,642
Total income	1,795,793	1,702,465	1,622,807
Expenses
Interest expense	(421,033)	(370,015)	(423,069)
Impairment loss on loan and other accounts receivable	(269,269)	(297,265)	(327,833)
Depreciation and amortization	(65,455)	(33,438)	(29,897)
Expenses from commissions and fees	(137,275)	(107,759)	(108,572)
Administrative expenses	(392,862)	(408,079)	(375,522)
Other expense	(195,290)	(190,005)	(180,186)
Income tax expense	(105,396)	(101,303)	(63,174)
Total Expenses	(1,586,580)	(1,507,864)	(1,508,253)
Net income for the year	236,624	216,468	137,695
Corporacion Financiera Colombiana S.A.
Income
Interest income	407,843	556,068	547,028
Income for commission and fees	77,012	77,936	95,086
Income from sales of goods and services	8,996,095	7,917,967	5,568,095
Participation in profit or loss associates and joint business	205,674	183,268	159,050
Dividends	76,522	62,633	45,243
Other Income	348,779	324,524	423,255
Total income	10,111,925	9,122,396	6,837,757
Expenses
Interest expense	(925,197)	(781,037)	(852,501)
Impairment loss on loan and other accounts receivable	(11,598)	(40,772)	(79,932)
Depreciation and amortization	(7,789)	(7,750)	(5,881)
Expenses from commissions and fees	(12,737)	(13,322)	(10,772)
Costs and expenses of sales goods and services	(6,256,833)	(5,011,808)	(4,577,538)
Administrative expenses	(85,533)	(95,338)	(119,271)
Other expense	(137,701)	(233,165)	(241,854)
Income tax expense	(802,936)	(908,261)	(440,043)
Total Expenses	(8,240,324)	(7,091,453)	(6,327,792)
Net income for the year	2,004,164	2,068,518	563,553
All other segments
Income
Interest income	248	176	315
Income for commission and fees	89,186	73,182	48,103
Participation in profit or loss associates and joint business	(4)
Other Income	2,967	2,714	3,077
Total income	92,397	76,072	51,495
Expenses
Interest expense	(240,723)	(222,519)	(216,694)
Depreciation and amortization	(10,135)	(7,306)	(9,337)
Expenses from commissions and fees	(4,419)	(2,511)	(2,550)
Costs and expenses of sales goods and services	20,755	5,409	5,901
Administrative expenses	(279,356)	(206,690)	(229,821)
Other expense	366,572	283,719	311,137
Income tax expense	(62,399)	(70,145)	(51,957)
Total Expenses	(209,705)	(220,043)	(193,321)
Net income for the year	39,626	(9,616)	30,158
Operating segments [member] | Banco de Bogota S.A.
Income
Total income	19,207,112	17,725,706	16,635,250
Operating segments [member] | Banco de Occidente S.A.
Income
Total income	4,296,870	4,040,260	4,338,753
Operating segments [member] | Banco Popular S.A.
Income
Total income	2,757,661	2,666,731	2,564,532
Operating segments [member] | Banco Commercial Av Villas S A
Income
Total income	1,823,204	1,724,332	1,645,948
Operating segments [member] | Corporacion Financiera Colombiana S.A.
Income
Total income	10,244,488	9,159,971	6,891,345
Operating segments [member] | All other segments
Income
Total income	249,331	210,427	223,479
Elimination of intersegment amounts [member]
Income
Interest income	(254,302)	(105,575)	(142,946)
Income for commission and fees	(104,177)	(123,877)	(124,008)
Income from sales of goods and services	(177,935)	(116,274)	(99,353)
Participation in profit or loss associates and joint business	(831,335)	(797,473)	(176,252)
Dividends	(12,393)	(27,488)	(17,819)
Other Income	(143,368)	(273,515)	(79,077)
Total income	(1,523,510)	(1,444,202)	(639,455)
Expenses
Interest expense	307,691	203,471	224,250
Impairment loss on loan and other accounts receivable	72,092
Depreciation and amortization	3,408
Expenses from commissions and fees	60,406	33,724	30,170
Costs and expenses of sales goods and services	(3,905)	36,106	7,942
Administrative expenses	575,643	504,736	470,122
Other expense	(347,764)	(324,752)	(375,613)
Income tax expense	(2,854)	(2,370)	(2,721)
Total Expenses	664,717	450,915	354,150
Net income for the year	(858,793)	(993,287)	(285,305)
Elimination of intersegment amounts [member] | Banco de Bogota S.A.
Income
Interest income	(95,675)	(58,463)	(72,910)
Income for commission and fees	(4,339)	(5,977)	(2,988)
Income from sales of goods and services	(1,968)	(580)	(15)
Participation in profit or loss associates and joint business	(513,721)	(562,070)	(36,782)
Dividends	(5,288)	(12,894)	(3,101)
Other Income	(52,608)	(201,241)	(24,536)
Total income	(673,599)	(841,225)	(140,332)
Elimination of intersegment amounts [member] | Banco de Occidente S.A.
Income
Interest income	(13,344)	(10,971)	(1,818)
Income for commission and fees	(8,328)	(9,395)	(5,171)
Income from sales of goods and services	(164,635)	(109,927)	(78,286)
Participation in profit or loss associates and joint business	(246,576)	(180,142)	(139,555)
Dividends	(2,022)	(2,414)	(5,494)
Other Income	(5,268)	(18,345)	(2,494)
Total income	(440,173)	(331,194)	(232,818)
Elimination of intersegment amounts [member] | Banco Popular S.A.
Income
Interest income	(13,411)	(3,681)	(1,047)
Income for commission and fees	(2,904)	(6,760)	(4,133)
Participation in profit or loss associates and joint business	(73,370)	(57,340)	376
Dividends	(2,925)	(9,355)	(6,810)
Other Income	(220)	(850)	(5,978)
Total income	(92,830)	(77,986)	(17,592)
Elimination of intersegment amounts [member] | Banco Commercial Av Villas S A
Income
Interest income	(3,441)	(1,726)	(4,797)
Income for commission and fees	(18,905)	(19,992)	(15,065)
Income from sales of goods and services	(5,466)
Participation in profit or loss associates and joint business	3,997	3,230	(132)
Dividends	(2,053)	(1,614)	(1,170)
Other Income	(1,543)	(1,765)	(1,977)
Total income	(27,411)	(21,867)	(23,141)
Elimination of intersegment amounts [member] | Corporacion Financiera Colombiana S.A.
Income
Interest income	(128,352)	(30,590)	(62,097)
Income for commission and fees	(1,474)	(1,350)	(1,339)
Income from sales of goods and services	(5,866)	(5,767)	(6,992)
Participation in profit or loss associates and joint business	(1,665)	(1,151)	(159)
Dividends	(105)	(1,211)	(1,244)
Other Income	4,899	2,494	18,243
Total income	(132,563)	(37,575)	(53,588)
Elimination of intersegment amounts [member] | All other segments
Income
Interest income	(79)	(144)	(277)
Income for commission and fees	(68,227)	(80,403)	(95,312)
Income from sales of goods and services			(14,060)
Other Income	(88,628)	(53,808)	(62,335)
Total income	$ (156,934)	$ (134,355)	$ (171,984)

ANALYSIS OF OPERATING SEGMENT_4

ANALYSIS OF OPERATING SEGMENTS - Revenue from contracts with customers (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Revenue from contracts with customers	$ 15,239,931	$ 13,579,396
Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	558,591	1,740,736
Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	14,681,340	11,838,660
Banco de Bogota S.A.
Disclosure of operating segments [line items]
Revenue from contracts with customers	5,060,573	4,530,757
Banco de Bogota S.A. | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	232,277	1,156,598
Banco de Bogota S.A. | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	4,828,296	3,374,159
Banco de Occidente S.A.
Disclosure of operating segments [line items]
Revenue from contracts with customers	651,537	582,571
Banco de Occidente S.A. | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	31,763	126,524
Banco de Occidente S.A. | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	619,774	456,047
Banco Popular S.A.
Disclosure of operating segments [line items]
Revenue from contracts with customers	266,889	262,703
Banco Popular S.A. | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	22,784	72,090
Banco Popular S.A. | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	244,105	190,613
Banco Commercial Av Villas S A
Disclosure of operating segments [line items]
Revenue from contracts with customers	300,229	281,761
Banco Commercial Av Villas S A | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	83,687	159,147
Banco Commercial Av Villas S A | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	216,542	122,614
Corporacion Financiera Colombiana S.A.
Disclosure of operating segments [line items]
Revenue from contracts with customers	8,679,277	7,770,108
Corporacion Financiera Colombiana S.A. | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	116,974	167,440
Corporacion Financiera Colombiana S.A. | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	8,562,303	7,602,668
All other segments
Disclosure of operating segments [line items]
Revenue from contracts with customers	437,415	437,292
All other segments | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	436,504	436,697
All other segments | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	911	595
Elimination of intersegment amounts [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	(155,989)	(285,796)
Elimination of intersegment amounts [member] | Goods or services transferred at point in time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers	(365,398)	(377,760)
Elimination of intersegment amounts [member] | Goods or services transferred over time [member]
Disclosure of operating segments [line items]
Revenue from contracts with customers, other	$ 209,409	$ 91,964

ANALYSIS OF OPERATING SEGMENT_5

ANALYSIS OF OPERATING SEGMENTS - Income by country (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [line items]
Interest income	$ 19,552,735	$ 18,356,636	$ 18,741,833
Income for commission and fees	6,083,343	5,453,382	5,202,125
Storage services	161,298	156,638	169,815
Trust activities	334,910	312,901	311,837
Pension and severance fund management	1,129,391	987,323	926,771
Fees on credit cards	1,364,244	1,187,716	1,112,319
Office network services	24,618	30,220	42,639
Commissions on drafts, checks and checkbooks	50,026	49,645	60,768
Other commissions	12,350	10,457	10,272
Commissions on banking services	3,006,506	2,718,482	2,567,704
Share of profit of equity accounted investees, net of tax	229,626	197,715	171,964
Dividends	84,686	71,487	50,439
Income from sales of goods and services	9,156,588	8,126,014	5,792,850
Others operating income	139,575	182,594	136,379
Other Income	1,948,178	1,877,991	1,700,641
Income	37,055,156	34,083,225	31,659,852
Energy And Gas E & G
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	4,524,903	3,411,674	2,908,292
Infrastructure
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	3,783,534	3,826,101	2,290,786
Hotels
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	366,835	332,749	236,760
Agro
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	135,928	133,095	87,800
Others Services
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	205,813	239,801	132,833
Colombia
Disclosure of operating segments [line items]
Interest income	12,891,567	12,721,895	13,512,361
Income for commission and fees	3,506,114	3,238,516	3,122,497
Storage services	161,298	156,638	169,815
Trust activities	334,910	312,901	311,837
Pension and severance fund management	1,088,849	955,912	898,537
Fees on credit cards	606,581	557,533	534,209
Office network services	24,618	30,220	42,639
Commissions on drafts, checks and checkbooks	49,546	49,196	60,268
Other commissions	12,350	10,457	10,272
Commissions on banking services	1,227,962	1,165,659	1,094,920
Share of profit of equity accounted investees, net of tax	229,626	197,715	171,964
Dividends	80,443	66,980	50,023
Income from sales of goods and services	8,710,572	7,861,701	5,570,536
Others operating income	139,575	182,594	136,379
Other Income	1,484,085	1,307,370	1,267,920
Income	26,902,407	25,394,177	23,695,301
Colombia | Energy And Gas E & G
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	4,102,181	3,168,649	2,701,124
Colombia | Infrastructure
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	3,783,534	3,826,101	2,290,786
Colombia | Hotels
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	343,541	311,461	221,613
Colombia | Agro
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	135,928	133,095	87,800
Colombia | Others Services
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	205,813	239,801	132,833
Panama
Disclosure of operating segments [line items]
Interest income	1,418,362	1,205,059	1,076,412
Income for commission and fees	352,996	309,546	294,630
Fees on credit cards	45,016	42,560	23,247
Commissions on drafts, checks and checkbooks	480	449	500
Commissions on banking services	307,500	266,537	270,883
Dividends	2,666	3,143	416
Income from sales of goods and services	669	575	409
Other Income	44,292	9,302	38,701
Income	1,818,985	1,527,625	1,410,568
Panama | Hotels
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	669	575	409
Costa Rica
Disclosure of operating segments [line items]
Interest income	2,128,292	1,797,230	1,647,600
Income for commission and fees	1,173,411	999,648	922,251
Pension and severance fund management	31,711	25,516	23,342
Fees on credit cards	406,458	343,791	320,208
Commissions on banking services	735,242	630,341	578,701
Other Income	72,026	269,119	182,258
Income	3,373,729	3,065,997	2,752,109
Guatemala
Disclosure of operating segments [line items]
Interest income	1,058,404	882,648	830,179
Income for commission and fees	278,198	260,158	233,758
Fees on credit cards	69,367	57,929	61,599
Commissions on banking services	208,831	202,229	172,159
Dividends	870	713
Other Income	147,776	130,052	68,709
Income	1,485,248	1,273,571	1,132,646
Honduras
Disclosure of operating segments [line items]
Interest income	950,760	763,975	759,401
Income for commission and fees	344,010	275,111	255,317
Pension and severance fund management	8,831	5,895	4,892
Fees on credit cards	99,055	81,512	66,210
Commissions on banking services	236,124	187,704	184,215
Dividends	707	651
Other Income	59,667	55,773	42,229
Income	1,355,144	1,095,510	1,056,947
Nicaragua
Disclosure of operating segments [line items]
Interest income	391,889	423,149	413,925
Income for commission and fees	170,261	157,034	164,030
Fees on credit cards	50,568	41,552	50,344
Commissions on banking services	119,693	115,482	113,686
Other Income	114,740	90,549	84,453
Income	676,890	670,732	662,408
El Salvador
Disclosure of operating segments [line items]
Interest income	660,029	544,267	485,703
Income for commission and fees	223,982	194,870	185,761
Fees on credit cards	63,467	54,590	51,686
Commissions on banking services	160,515	140,280	134,075
Other Income	5,486	8,060	4,812
Income	889,497	747,197	676,276
Peru
Disclosure of operating segments [line items]
Interest income	6,162	107	87
Income from sales of goods and services	445,347	263,738	221,906
Other Income	6,635	3,297	6,345
Income	458,144	267,142	228,338
Peru | Energy And Gas E & G
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	422,722	243,025	207,168
Peru | Hotels
Disclosure of operating segments [line items]
Income from goods and services from non-financial sector	22,625	20,713	14,738
Other countries
Disclosure of operating segments [line items]
Interest income	47,270	18,306	16,165
Income for commission and fees	34,371	18,499	23,881
Fees on credit cards	23,732	8,249	4,816
Commissions on banking services	10,639	10,250	19,065
Other Income	13,471	4,469	5,214
Income	$ 95,112	$ 41,274	$ 45,260

ANALYSIS OF OPERATING SEGMENT_6

ANALYSIS OF OPERATING SEGMENTS - Non-current assets by country (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Property plant and equipment, net	$ 8,950,411	$ 6,588,483
Intangible assets	16,076,566	13,866,959
Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	5,783,234	5,663,743
Colombia
Disclosure of operating segments [line items]
Intangible assets	10,299,669	8,625,595
Colombia | Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	4,441,733	4,450,061
Panama
Disclosure of operating segments [line items]
Intangible assets	4,005,751	3,979,443
Panama | Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	210,348	213,090
Costa Rica
Disclosure of operating segments [line items]
Intangible assets	101,324	100,631
Costa Rica | Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	403,107	378,554
Guatemala
Disclosure of operating segments [line items]
Intangible assets	17,981	15,988
Guatemala | Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	139,793	108,167
Other countries
Disclosure of operating segments [line items]
Intangible assets	1,651,841	1,145,302
Other countries | Property, plant and equipment not subject to operating leases [member]
Disclosure of operating segments [line items]
Property plant and equipment, net	$ 588,253	$ 513,871

UNCONSOLIDATED STRUCTURED ENT_3

UNCONSOLIDATED STRUCTURED ENTITIES (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of unconsolidated structured entities [line items]
Percentage of total assets	1.26%	1.35%
Unconsolidated structured entities [member]
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	$ 3,536,897	$ 2,229,889
Grupo Aval’s maximum exposure	3,536,897	2,229,889
Unconsolidated structured entities [member] | Trade receivables / other accounts receivable
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	40,149	34,431
Unconsolidated structured entities [member] | Financial assets at fair value through profit or loss, category [member] | Investment securities at fair value
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	3,496,748	2,195,458
Securitisation vehicles [member]
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	10,102	13,733
Grupo Aval’s maximum exposure	10,102	13,733
Securitisation vehicles [member] | Financial assets at fair value through profit or loss, category [member] | Investment securities at fair value
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	10,102	13,733
Managed funds [member]
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	3,526,795	2,216,156
Grupo Aval’s maximum exposure	3,526,795	2,216,156
Managed funds [member] | Trade receivables / other accounts receivable
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	40,149	34,431
Managed funds [member] | Financial assets at fair value through profit or loss, category [member] | Investment securities at fair value
Disclosure of unconsolidated structured entities [line items]
Total assets in relation to the Grupo Aval’s interests in the unconsolidated structured entities	$ 3,486,646	$ 2,181,725

TRANSFERS OF FINANCIAL ASSETS -

TRANSFERS OF FINANCIAL ASSETS - Textual (Details) - Debt securities - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 620,920	$ 1,139,782
Financial assets at amortised cost, category [member]
Disclosure of financial assets [line items]
Financial assets pledged as collateral	323,954
Financial assets measured at fair value through other comprehensive income, category [member]
Disclosure of financial assets [line items]
Financial assets pledged as collateral	6,988,500	4,198,537
Financial assets measured at fair value through other comprehensive income, category [member] | Pledged in money market operations and pledged as collateral to special entities such as CRCC, BR and BVC
Disclosure of financial assets [line items]
Financial assets pledged as collateral	$ 6,662,608	$ 4,029,816

RELATED PARTIES - General infor

RELATED PARTIES - General information (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and equivalents	$ 30,117,236	$ 28,401,283	$ 22,336,838	$ 22,193,004
Financial assets in credit operations		709,778
Loans and receivables	182,128,114	176,881,841
Other assets	427,220	462,890
Liabilities
Deposits	175,491,421	164,359,451
Financial liabilities	231,392,733	216,578,285
Other liabilities	8,729,382	9,007,953
Individuals with Control Over Entity [Member]
Assets
Financial assets in credit operations	2,936	2,680
Loans and receivables	9	9
Liabilities
Deposits	273,224	100,199
Accounts payable	561	38
Financial liabilities	3	1
Key management personnel of entity or parent [member]
Assets
Financial assets in credit operations	7,775	17,062
Loans and receivables	14	58
Liabilities
Deposits	27,000	21,726
Accounts payable	347	686
Financial liabilities	15	3
Associates [member]
Assets
Financial assets in investments	1,006,340	920,170
Financial assets in credit operations	1,148,522	1,443,476
Loans and receivables	12,243	8,105
Other assets	14,118	20,348
Liabilities
Deposits	97,097	70,960
Accounts payable	9,165	10,114
Financial liabilities	72	102
Other liabilities	1,937	25,040
Entities controlled by individuals [Member]
Assets
Financial assets in credit operations	1,513,287	1,513,218
Loans and receivables	2,958	3,329
Other assets	3,232	5,030
Liabilities
Deposits	1,290,574	570,558
Accounts payable	514,976	291,328
Financial liabilities	30,000	7
Other liabilities	714	194
Entities with joint control or significant influence over entity [member]
Assets
Financial assets in credit operations	122,964	102,958
Loans and receivables	241	17
Liabilities
Deposits	7,032	23,470
Accounts payable	$ 21	1
Other liabilities		$ 3

RELATED PARTIES - Transactions

RELATED PARTIES - Transactions (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income
Interest income	$ 19,552,735	$ 18,356,636	$ 18,741,833
Fee income and commissions	6,083,343	5,453,382	5,202,125
Other income	1,282,963	1,358,681	1,151,745
Expenses
Expenses from commissions and fees	(627,999)	(613,763)	(623,114)
Other expenses	(10,171,349)	(9,371,033)	(9,003,091)
Individuals with Control Over Entity [Member]
Income
Interest income	290	216	164
Fee income and commissions	17	5	5
Other income	7	4	4
Expenses
Finance costs	(169)	(216)	(243)
Expenses from commissions and fees	(3)	(4)	(4)
Operating expenses	(300)
Other expenses	(14)	(16)
Key management personnel of entity or parent [member]
Income
Interest income	722	907	757
Fee income and commissions	45	58	48
Other income	7	243	59
Expenses
Finance costs	(628)	(740)	(1,197)
Expenses from commissions and fees	(1,410)	(1,549)	(1,510)
Operating expenses	(7,850)	(25,808)	(9,706)
Other expenses	(1,893)	(496)	(1,635)
Associates [member]
Income
Interest income	28,172	101,539	155,690
Fee income and commissions	36,505	6,664	26,249
Leases		45	321
Other income	274,349	241,797	236,871
Expenses
Finance costs	(1,251)	(735)	(129,335)
Expenses from commissions and fees	(20,066)	(14,741)	(24,039)
Operating expenses		(53)	(3,572)
Other expenses	(444,730)	(30,250)	(32,691)
Bad debts owed by related parties	400,630
Entities controlled by individuals [Member]
Income
Interest income	90,281	131,368	123,671
Fee income and commissions	106,120	65,615	57,180
Leases	324	315	301
Other income	6,285	4,252	6,391
Expenses
Finance costs	(20,319)	(17,322)	(30,431)
Expenses from commissions and fees	(2,098)	(1,796)	(3,276)
Operating expenses	(3,278)	(4,013)	(1,892)
Other expenses	(41,276)	(27,034)	(34,400)
Entities with joint control or significant influence over entity [member]
Income
Interest income	7,998	4,789	543
Fee income and commissions	6	5
Other income	534
Expenses
Finance costs	(28)	(22)	(6)
Expenses from commissions and fees	(380)	$ (5)	(1)
Operating expenses			$ (113)
Other expenses	$ (25)

RELATED PARTIES - Compensation

RELATED PARTIES - Compensation of key management personnel (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Total	$ 59,022	$ 75,528	$ 53,035
Parent
Disclosure of transactions between related parties [line items]
Salaries	16,778	18,123	17,073
Short term benefits for employees	4,654	3,244	3,167
Total	21,432	21,367	20,240
Subsidiaries
Disclosure of transactions between related parties [line items]
Total	$ 37,590	$ 54,161	$ 32,795

SUBSEQUENT EVENTS - Issuance of

SUBSEQUENT EVENTS - Issuance of bonds (Details) - Senior Notes, January 28, 2020 $ in Billions	Jan. 28, 2020USD ($)
Disclosure of non-adjusting events after reporting period [line items]
Notional amount	$ 1
Borrowing rate	4.375%
Borrowings term	10 years

SUBSEQUENT EVENTS - Dividends -

SUBSEQUENT EVENTS - Dividends - Declared (Details) - COP ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of non-adjusting events after reporting period [abstract]
Cash dividend declared, per installment	$ 5	$ 5	$ 4	$ 4.90
Dividend declared	$ 1,336,861	$ 1,336,861	$ 1,069,489	$ 1,310,124
Cash dividends declared information	At the General Meeting of Shareholders that took place on March 30, 2020, it was declared a dividend of 5.00 per month for the preferred and common shares, during period of twelve-month between April, 2020 and March 2021	In the general assembly held in March 2019, 60.00 pesos per share payable in twelve installments of 5.00 pesos per share, from April 2019 to March 2020.	In the general assembly held in March 2018, 48.00 pesos per share payable in twelve installments of 4.00 pesos per share, from April 2018 to March 2019.	In the general assembly held in March 2017, 58.80 pesos per share payable in twelve installments of 4.90 pesos per share, from April 2017 to March 2018.

SUBSEQUENT EVENTS - Dividends_2

SUBSEQUENT EVENTS - Dividends - Total income available for disposal (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of non-adjusting events after reporting period [abstract]
Net income for period ended December 31, 2018 included in the unconsolidated financial statements of Grupo Aval	$ 3,031,238	$ 2,887,749	$ 2,001,178	$ 1,053,594
Occasional reserve release at the disposal of the General Meeting of Shareholders	7,816,338
Total Income available for disposal of the General Meeting of Shareholders	$ 10,847,576

SUBSEQUENT EVENTS - Dividends_3

SUBSEQUENT EVENTS - Dividends - General information (Details)	12 Months Ended
	Dec. 31, 2019installment$ / sharesshares	Dec. 31, 2018installment$ / sharesshares	Dec. 31, 2017installment$ / sharesshares	Dec. 31, 2016installment$ / sharesshares
Disclosure of non-adjusting events after reporting period [abstract]
Cash dividends declared	$ 60	$ 60	$ 48	$ 58.80
Number of installments dividends payable | installment	12	12	12	12
Cash dividend declared, per installment	$ 5	$ 5	$ 4	$ 4.90
Total shares outstanding | shares	22,281,017,159	22,281,017,159	22,281,017,159	22,281,017,159

SUBSEQUENT EVENTS - Dividends_4

SUBSEQUENT EVENTS - Dividends - Occasional reserve at disposal (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of non-adjusting events after reporting period [abstract]
Total Income available for disposal of the General Meeting of Shareholders	$ 10,847,576
Dividend declared	1,336,861	$ 1,336,861	$ 1,069,489	$ 1,310,124
To Occasional reserve at the disposal of General Meeting of shareholders	$ 9,510,715

PARENT COMPANY INFORMATION - St

PARENT COMPANY INFORMATION - Statement of Financial Position (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 30,117,236	$ 28,401,283	$ 22,336,838	$ 22,193,004
Accounts receivable from related parties	147,617	136,551
Non current Assets
Property plant and equipment	8,950,411	6,588,483
Deferred	246,598	341,338
Assets	278,832,589	259,675,153
Long-term liabilities
Outstanding bonds	19,908,991	18,772,405
Deferred tax liabilities	2,871,309	2,160,942
Liabilities	245,484,320	230,120,805
Equity
Shareholders’ equity	33,348,269	29,554,348	25,871,227	24,659,222
Total liabilities and shareholders’ equity	278,832,589	259,675,153
Parent
Current Assets
Cash and cash equivalents	51,299	38,667	$ 35,478	$ 47,280
Trading securities	212	1,543
Accounts receivable from related parties	328,307	267,640
Other assets	442	517
Total current assets	380,260	308,367
Non current Assets
Investments in subsidiaries and associates	22,016,681	19,932,376
Investments in subsidiaries and associates	22,016,277	19,932,376
Property plant and equipment	8,351	2,414
Deferred	331	476
Total non current assets	22,025,363	19,935,266
Assets	22,405,623	20,243,633
Current liabilities
Borrowings at amortized cost	189,297	2,808
Outstanding bonds at amortized cost	107,435	284,758
Accounts payable	468,298	405,372
Other non-financial liabilities	1,214	1,214
Total current liabilities	766,244	694,152
Long-term liabilities
Borrowings at amortized cost	241,141	541,924
Outstanding bonds	1,124,520	824,520
Total non current liabilities	1,365,661	1,366,444
Liabilities	2,131,905	2,060,596
Equity
Shareholders’ equity	20,273,718	18,183,037
Total liabilities and shareholders’ equity	$ 22,405,623	$ 20,243,633

PARENT COMPANY INFORMATION - _2

PARENT COMPANY INFORMATION - Statement of Income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating revenue
Participation in profit or loss associates and joint business	$ 229,626	$ 197,715	$ 171,964
Other revenue from ordinary activities	395,909	357,094	389,986
Expenses, net
Administrative expenses	(4,954,307)	(4,640,460)	(4,513,148)
Other expenses	(10,171,349)	(9,371,033)	(9,003,091)
Net income before taxes	7,451,711	7,334,141	4,915,227
Income tax expense	(2,086,257)	(2,149,590)	(1,752,794)
Net income	5,365,454	5,184,551	3,162,433
Parent
Operating revenue
Participation in profit or loss associates and joint business	3,014,756	2,893,435	2,005,155
Other revenue from ordinary activities	286,778	285,218	234,502
Total operating revenue	3,301,534	3,178,653	2,239,657
Expenses, net
Administrative expenses	(83,902)	(75,348)	(89,823)
Other expenses	(236)	(166)	(274)
(Losses) gains from exchange differences	(812)	(1,601)	98
Operating income	3,216,584	3,101,538	2,149,658
Finance costs	(121,794)	(118,892)	(133,171)
Net income before taxes	3,094,790	2,982,646	2,016,487
Income tax expense	(61,411)	(66,662)	(51,568)
Net income	$ 3,033,379	$ 2,915,984	$ 1,964,919

PARENT COMPANY INFORMATION - Ca

PARENT COMPANY INFORMATION - Cash flow (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of parent company information
Net income	$ 5,365,454	$ 5,184,551	$ 3,162,433
Net cash provided by operating activities	5,634,994	8,731,562	5,108,316
Net cash provided (used in) by investing activities	(3,063,527)	(3,047,304)	(3,610,068)
Net cash (used in) provided by financing activities	(895,991)	(997,557)	(1,445,976)
Effect of exchange rate changes on cash and cash equivalents	40,477	1,377,744	91,562
Cash and cash equivalents at beginning of year	28,401,283	22,336,838	22,193,004
Cash and cash equivalents at end of year	30,117,236	28,401,283	22,336,838
Parent
Disclosure of parent company information
Net income	3,033,379	2,915,984	1,964,919
Adjustments to reconcile net income to net cash used by operating activities	(1,753,640)	(1,785,764)	(880,322)
Net cash provided by operating activities	1,279,739	1,130,220	1,084,597
Net cash provided (used in) by investing activities	(145)	(144)	(295)
Net cash (used in) provided by financing activities	(1,267,976)	(1,128,498)	(1,096,011)
Increase (decrease) in cash and cash equivalents (before effect of exchange rate changes on cash and cash equivalents)	11,618	1,578	(11,709)
Effect of exchange rate changes on cash and cash equivalents	1,014	1,611	(93)
Cash and cash equivalents at beginning of year	38,667	35,478	47,280
Cash and cash equivalents at end of year	$ 51,299	$ 38,667	$ 35,478

PARENT COMPANY INFORMATION - In

PARENT COMPANY INFORMATION - Investment in Subsidiaries and Associates (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
ADL Digital Lab SAS
Disclosure of parent company information
Proportion of ownership interest in associate	34.00%
Banco de Bogota S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	68.74%
Banco de Occidente S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	72.27%
Banco Commercial Av Villas S A
Disclosure of parent company information
Proportion of ownership interest in subsidiary	79.87%
Banco Popular S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	93.74%
Corporacion Financiera Colombiana S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	38.63%
Parent
Disclosure of parent company information
Investments in subsidiaries	$ 22,016,277	$ 19,932,376
Investments in subsidiaries and associates	$ 22,016,681	$ 19,932,376
Parent | ADL Digital Lab SAS
Disclosure of parent company information
Proportion of ownership interest in subsidiary	34.00%
Investments in associates	$ 404
Parent | Banco de Bogota S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	68.74%	68.74%
Investments in subsidiaries	$ 13,325,612	$ 11,905,815
Parent | Banco de Occidente S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	72.27%	72.27%
Investments in subsidiaries	$ 3,415,545	$ 3,183,351
Parent | Banco Commercial Av Villas S A
Disclosure of parent company information
Proportion of ownership interest in subsidiary	79.87%	79.87%
Investments in subsidiaries	$ 1,410,765	$ 1,290,056
Parent | Banco Popular S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	93.74%	93.74%
Investments in subsidiaries	$ 3,074,428	$ 2,923,562
Parent | Corporacion Financiera Colombiana S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	38.63%	38.25%
Investments in subsidiaries	$ 821,827	$ 674,484
Parent | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A.
Disclosure of parent company information
Proportion of ownership interest in subsidiary	75.67%	75.69%
Investments in subsidiaries	$ 503,993	$ 440,707
Parent | Grupo Aval Limited
Disclosure of parent company information
Proportion of ownership interest in subsidiary	100.00%	100.00%
Investments in subsidiaries	$ (535,893)	$ (347,082)
Parent | Grupo Aval International Limited
Disclosure of parent company information
Proportion of ownership interest in subsidiary		100.00%
Investments in subsidiaries		$ (138,517)

PARENT COMPANY INFORMATION - Ou

PARENT COMPANY INFORMATION - Outstanding bonds (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Bonds issued	$ 21,918,268	$ 20,140,350
Parent
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	1,504,080
Bonds issued	1,231,955	1,109,278
Parent | Bonds issued November 2019, maturing November 2024 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 100,000
Outstanding bonds, Maturity	November, 2024
Interest Rate	6.42%
Bonds issued	$ 100,824
Parent | Bonds issued November 2019, maturing November 2039 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 300,000
Outstanding bonds, Maturity	November, 2039
Bonds issued	$ 302,951
Parent | Bonds issued November 2019, maturing November 2039 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	3.69%
Parent | Bonds issued June 2017, maturing June 2020 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 100,000
Outstanding bonds, Maturity	June, 2020
Bonds issued	$ 100,071	100,065
Parent | Bonds issued June 2017, maturing June 2020 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	2.69%
Parent | Bonds issued June 2017, maturing June 2042 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 300,000
Outstanding bonds, Maturity	June, 2042
Bonds issued	$ 300,255	300,237
Parent | Bonds issued June 2017, maturing June 2042 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	3.99%
Parent | Bonds issued November 2016, maturing November 2026 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 93,000
Outstanding bonds, Maturity	November, 2026
Bonds issued	$ 93,741	93,690
Parent | Bonds issued November 2016, maturing November 2026 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	3.86%
Parent | Bonds issued November 2016, maturing November 2036 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 207,000
Outstanding bonds, Maturity	November, 2036
Bonds issued	$ 208,709	208,597
Parent | Bonds issued November 2016, maturing November 2036 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	4.15%
Parent | Bonds issued December 2009, maturing December 2019 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 279,560
Outstanding bonds, Maturity	December, 2019
Bonds issued		281,341
Parent | Bonds issued December 2009, maturing December 2019 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	4.84%
Parent | Bonds issued December 2009, maturing December 2024 [member]
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, tranches	$ 124,520
Outstanding bonds, Maturity	December, 2024
Bonds issued	$ 125,404	$ 125,348
Parent | Bonds issued December 2009, maturing December 2024 [member] | IPC
Disclosure of detailed information about borrowings [line items]
Outstanding bonds, Coupon rate	5.20%

PARENT COMPANY INFORMATION - Ma

PARENT COMPANY INFORMATION - Maturities of bonds (Details) - COP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of parent company information
Scheduled maturities of bonds	$ 21,918,268	$ 20,140,350
Parent
Disclosure of parent company information
Scheduled maturities of bonds	1,231,955	$ 1,109,278
Parent | Not later than one year [member]
Disclosure of parent company information
Scheduled maturities of bonds	107,435
Parent | Later than two years [member]
Disclosure of parent company information
Scheduled maturities of bonds	$ 1,124,520