Banco Itau Chile (ITCLY) 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, 2019shares
Document and entity information [abstract]
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	CORPBANCA/FI
Entity Central Index Key	0001276671
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Interactive Data Current	No
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding	512,406,760,091

Consolidated Statements of Fina

Consolidated Statements of Financial Position - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Cash and deposits in banks	$ 1,009,681	$ 987,680
Cash items in process of collection	231,305	318,658
Financial instruments at fair value through profit or loss	183,702	96,943
Financial instruments at fair value through other comprehensive income	3,598,890	2,657,154
Interbank loans at amortized cost	56,396	341,244
Loans and accounts receivable from customers at amortized cost	22,254,697	20,714,370
Financial instruments at amortized cost	115,658	198,923
Investments under resale agreements	75,975	109,467
Financial derivative contracts	3,154,957	1,368,957
Investment in associates	9,605
Intangible assets	1,574,433	1,570,964
Property, plant and equipment	95,080	95,564
Right of use asset under lease agreements	167,441	176,795
Current taxes	85,516	123,129
Deferred taxes	208,657	178,686
Other assets	770,861	501,797
Other non-current assets held for sale	17,202	59,802
TOTAL ASSETS	33,610,056	29,323,338
LIABILITIES
Deposits and other demand liabilities	4,873,448	4,300,475
Cash in process of being cleared	164,573	247,165
Obligations under repurchase agreements	559,457	1,015,614
Time deposits and other time liabilities	11,620,187	10,121,111
Financial derivative contracts	2,938,034	1,112,806
Interbank borrowings	2,646,756	2,327,723
Debt instruments issued	6,408,356	6,010,124
Other financial liabilities	12,966	12,400
Lease contracts liabilities	172,924
Current taxes	13	1,191
Deferred taxes	263	471
Provisions	177,827	214,903
Other liabilities	708,914	521,795
Liabilities directly associated with non-current assets held for sale	0	0
TOTAL LIABILITIES	30,283,718	25,885,778
Attributable to equity holders of the Bank:
Equity	1,862,826	1,862,826
Reserves	1,195,849	1,290,131
Valuation accounts	47,292	16,159
Retained earnings:	125,926	50,362
Retained earnings (accumulated losses) from prior years	50,362	(69,355)
Net income for the year	113,684	171,331
Less: Provision for mandatory dividends	(38,120)	(51,614)
Total equity attributable to equity holders of the Bank	3,231,893	3,219,478
Non-controlling interest	94,445	218,082
TOTAL EQUITY	3,326,338	3,437,560
TOTAL LIABILITIES AND EQUITY	$ 33,610,056	$ 29,323,338

Consolidated Statements of Inco

Consolidated Statements of Income - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Profit or loss [abstract]
Interest income	$ 1,773,640	$ 1,739,317	$ 1,646,329
Interest expense	(873,222)	(851,654)	(863,347)
Net interest income	900,418	887,663	782,982
Fee and commission income	244,196	237,956	216,420
Fee and commission expense	(69,792)	(51,827)	(38,849)
Net fee and commission income	174,404	186,129	177,571
Net income from financial operations	143,634	172,755	8,268
Net foreign exchange gain (loss)	27,626	(17,965)	46,165
Other operating income	44,972	26,656	41,532
Net operating profit before provision for loan losses	1,291,054	1,255,238	1,056,518
Provision for loan losses	(382,678)	(279,798)	(315,417)
NET OPERATING PROFIT	908,376	975,440	741,101
Personnel salaries and expenses	(298,209)	(294,747)	(281,323)
Administrative expenses	(248,881)	(291,736)	(305,622)
Depreciation and amortization	(127,166)	(86,817)	(81,845)
Impairment	(728)	(28)	(27)
Other operating expenses	(61,549)	(68,199)	(62,330)
Total operating expenses	(736,533)	(741,527)	(731,147)
Income from investment in associates	532
Operating income before income taxes	172,375	233,913	9,954
Income taxes	(47,853)	(67,059)	52,871
Consolidated income from continuing operations	124,522	166,854	62,825
Loss from discontinued operations	532
TOTAL CONSOLIDATED INCOME FOR THE YEAR	124,522	166,854	62,825
Attributable to:
Equity holders of the Bank	113,684	171,331	67,821
Non-controlling interest	$ 10,838	$ (4,477)	$ (4,996)
Earnings per share attributable to equity holders of the Bank (in Chilean pesos)
Basic earnings per share	$ 0.222	$ 0.334	$ 0.132
Diluted earnings per share	$ 0.222	$ 0.334	$ 0.132

Consolidated Statements of Othe

Consolidated Statements of Other Comprehensive Income - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of comprehensive income [abstract]
CONSOLIDATED INCOME FOR THE YEAR	$ 124,522	$ 166,854	$ 62,825
OTHER COMPREHENSIVE INCOME (LOSS) WHICH MAY BE RECLASSIFIED SUBSEQUENTLY TO PROFIT OR LOSS:
Debt instruments at fair value through other comprehensive income	21,703	(1,441)
Available for sale investments			9,966
Exchange differences on investment in Colombia and New York branch	73,855	48,610	(78,302)
Gain (loss) from hedge of net investments in foreign operations	(46,786)	(36,533)	49,197
Gain (loss) from cash flow hedge	(6,792)	11,289	(127)
Other comprehensive income (loss) before income taxes	41,980	21,925	(19,266)
Income taxes related to financial instruments at FVTOCI	(5,926)	(2,172)
Income taxes related to available for sale investments			(3,333)
Income taxes related to hedge of net investment in foreign operations	14,373	10,565	(14,211)
Income taxes related to cash flow hedge	(162)	(1,669)	44
Income taxes on other comprehensive income (loss)	8,285	6,724	(17,500)
Other comprehensive income (loss) which may be reclassified subsequently to profit or loss, net of income taxes	50,265	28,649	(36,766)
OTHER COMPREHENSIVE INCOME (LOSS) WHICH MAY NOT BE RECLASSIFIED SUBSEQUENTLY TO PROFIT OR LOSS:
Defined benefits obligations	(4,432)	(754)	(208)
Income taxes related to defined benefits obligations	1,542	(44)	(6)
Changes in the fair value of equity investments at fair value through other comprehensive income	814	482
Other comprehensive loss which may not be reclassified subsequently to profit or loss, net of income taxes	(2,076)	(316)	(214)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) FOR THE YEAR	48,189	28,333	(36,980)
CONSOLIDATED COMPREHENSIVE INCOME FOR THE YEAR	172,711	195,187	25,845
Attributable to:
Equity holders of the Bank	144,817	191,228	47,534
Non-controlling interest	$ 27,894	$ 3,959	$ (21,689)

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - CLP ($) $ in Millions	Number of shares issued [member]	Capital [Member]	Revaluation surplus [member]	Other equity interest [member]	Valuation Accounts [member]	Retained earnings [member]	Retained earnings1 [member]	Provision for mandatory dividends [member]	Total Attributable to Equity Holders of the Bank [Member]	Non controlling Interest [Member]	Total
Beginning Balance at Dec. 31, 2016		$ 1,862,826	$ 451,011	$ 843,097	$ 15,552	$ 13,286		$ (1,029)	$ 3,184,743	$ 238,969	$ 3,423,712
Beginning Balance at Dec. 31, 2016	512,407										512,406,760,091
Statement [LineItems]
Dividends paid						(618)		1,029	411		$ 411
Other movements				(3,977)					(3,977)		(3,977)
Provision for mandatory dividends								(17,234)	(17,234)		(17,234)
Comprehensive income (loss) for the year					(20,287)		$ 67,821		47,534	(21,689)	25,845
Ending Balance at Dec. 31, 2017		1,862,826	451,011	839,120	(4,735)	12,668	67,821	(17,234)	3,211,477	217,280	$ 3,428,757
Ending Balance at Dec. 31, 2017	512,407										512,406,760,091
Statement [LineItems]
Distribution of income from previous year						67,821	(67,821)
Ending Balance (Revised For IFRS 9 [member]) at Jan. 01, 2018		1,862,826	451,011	839,120	(3,738)	(46,376)		(17,234)	3,085,609	214,123	$ 3,299,732
Ending Balance at Jan. 01, 2018		1,862,826	451,011	839,120	(4,735)	80,489		(17,234)	3,211,477	217,280	3,428,757
Ending Balance (Revised For IFRS 9 [member]) at Jan. 01, 2018	512,407
Ending Balance at Jan. 01, 2018	512,407
Statement [LineItems]
Distribution of income from previous year						(22,979)		17,234	(5,745)		(5,745)
Provision for mandatory dividends								(51,614)	(51,614)		(51,614)
Comprehensive income (loss) for the year					19,897		171,331		191,228	3,959	195,187
Ending Balance at Dec. 31, 2018		1,862,826	451,011	839,120	16,159	(69,355)	171,331	(51,614)	3,219,478	218,082	$ 3,437,560
Ending Balance at Dec. 31, 2018	512,407										512,406,760,091
Statement [LineItems]
Changes due to initial application of IFRS 9 | Increase (decrease) due to changes in accounting policy required by IFRSs [member]					997	(126,865)			(125,868)	(3,157)	$ (129,025)
Distribution of income from previous year						171,331	(171,331)
Ending Balance at Jan. 01, 2019		1,862,826	451,011	839,120	16,159	101,976		(51,614)	3,219,478	218,082	3,437,560
Ending Balance at Jan. 01, 2019	512,407
Beginning Balance at Dec. 31, 2018		1,862,826	451,011	839,120	16,159	(69,355)	171,331	(51,614)	3,219,478	218,082	$ 3,437,560
Beginning Balance at Dec. 31, 2018	512,407										512,406,760,091
Statement [LineItems]
Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings											$ (175)
Ending Balance at Dec. 31, 2019		1,862,826	451,011	744,838	47,117	50,537	113,684	(38,120)	3,231,893	94,445	$ 3,326,338
Ending Balance at Dec. 31, 2019	512,407										512,406,760,091
Beginning Balance at Jan. 01, 2019		1,862,826	451,011	839,120	16,159	101,976		(51,614)	3,219,478	218,082	$ 3,437,560
Beginning Balance at Jan. 01, 2019	512,407
Statement [LineItems]
Distribution of income from previous year						(51,614)		51,614
Provision for mandatory dividends								(38,120)	(38,120)		(38,120)
Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings					(175)	175
Comprehensive income (loss) for the year					31,133		113,684		144,817	27,894	172,711
Increase participation in Colombia				(94,282)					(94,282)	(151,531)	(245,813)
Ending Balance at Dec. 31, 2019		$ 1,862,826	$ 451,011	$ 744,838	$ 47,117	$ 50,537	$ 113,684	$ (38,120)	$ 3,231,893	$ 94,445	$ 3,326,338
Ending Balance at Dec. 31, 2019	512,407										512,406,760,091

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Operating income before income taxes	$ 172,375	$ 233,913	$ 9,954
Debits (credits) to income that do not represent cash flows
Depreciation and amortization	127,166	86,817	81,845
Provisions for loans and accounts receivable from customers and interbank loans	441,343	328,266	346,980
Provisions and write-offs for assets received in lieu of payment	18,284	16,132	14,472
Provisions for contingencies	507	1,998	586
Impairment	728	28	27
Net gain on sale of loans and accounts receivable from customers	(14,588)	(1,602)	(15,121)
Income received from FVTPL / Trading and derivative activities	(92,959)	(74,071)	63,625
Income received from sale of FVTOCI / Available for sale	(33,867)	(13,765)	(13,641)
Net interest income	(900,418)	(887,663)	(782,982)
Fee and commission income	(244,196)	(237,956)	(216,420)
Fee and commission expense	69,792	51,827	38,849
Net foreign exchange gain (loss)	(27,626)	17,965	(46,165)
Net gain on sale of property, plant and equipment	(1,593)	(5,212)	(13,020)
Other charges (credits) that do not represent cash flows	50,422	20,684	8,887
Subtotal	(434,630)	(462,639)	(522,124)
Loans and accounts receivable from customers and interbank loans	(1,254,664)	(1,610,676)	393,967
Investments under resale agreements	33,492	(80,943)	(10,784)
Obligations under repurchase agreements	(456,157)	594,694	47,041
Financial instruments at FVTPL / Trading investments	(55,236)	326,131	207,263
Financial instruments at FVTOCI / Available for sale investments	(941,256)	166,753	(933,263)
Financial instruments at amortized cost / Held to maturity investments	83,228	3,120	24,392
Other assets and liabilities	(41,251)	(99,717)	319,624
Penalty fee recover			21,765
Time deposits and other time liabilities	1,499,076	430,141	(1,521,753)
Deposits and other demand liabilities	572,973	159,296	(312,332)
Foreign borrowings obtained	3,163,543	2,741,786	3,911,800
Repayment of foreign borrowings	(2,928,952)	(2,636,867)	(3,839,035)
Interest paid	(590,814)	(873,121)	(875,702)
Interest received	1,663,507	1,951,250	1,661,537
Net fee and commission income	171,682	186,258	177,660
Taxes paid	(152,681)	(105,683)	(136,184)
Repayment of other borrowings	(566)	(4,666)	(8,497)
Proceeds from sale of assets received in lieu of payment	23,203	10,638	3,762
Net cash flows provided by (used in) operating activities	354,497	695,755	(1,390,863)
CASH FLOWS FROM INVESTMENT ACTIVITIES:
Purchase of property, plant and equipment and intangible assets	(65,716)	(82,952)	(87,155)
Sales of property, plant and equipment	18,263	41,078
Payments for investments in subsidiaries	(268,174)
Net cash flows provided by (used in) investing activities	(315,627)	(41,874)	(87,155)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt instruments issued	649,321	484,754	1,076,452
Redemption of debt issued	(633,671)	(911,047)	(726,232)
Dividends paid	(51,347)	(22,979)	(618)
Payments of lease liabilities	(34,226)
Net cash flows provided by financing activities	(69,923)	(449,272)	349,602
Effect of changes in exchange rates	115,940	83,354	86,761
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	84,887	287,963	(1,041,655)
Cash and cash equivalents at the beginning of the year	1,363,052	1,075,089	2,116,744
Cash and cash equivalents at end of the year	1,447,939	1,363,052	1,075,089
Net increase (decrease) in cash and cash equivalents	$ 84,887	$ 287,963	$ (1,041,655)

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement [LineItems]
Debt instruments issued opening balance	$ 6,186,919
Debt instruments issued opening balance	6,010,124	$ 5,950,038
Cash flows received	649,321	484,754
Cash flows payments	(667,897)	(911,047)
Other changes different of cash acquisition	12,998
Other changes different of cash interest	358,034	322,252
Other changes different of cash currency movement	41,905	164,127
Debt instruments issued ending balance	6,408,356	6,010,124
Debt instruments issued ending balance	6,581,280	6,186,919
Dividends paid	(51,347)	(22,979)
Subtotal cash flows from financing activities - Cash flows received	649,321	484,754
Subtotal cash flows from financing activities - Cash flows payments	(719,244)	(934,026)
Total cash flows from financing activities (net)	(34,226)	(449,272)
Mortgage finance bonds [member]
Statement [LineItems]
Debt instruments issued opening balance	53,463
Debt instruments issued opening balance	53,463	67,938
Cash flows payments	(14,523)	(17,438)
Other changes different of cash interest	1,993	2,963
Debt instruments issued ending balance		53,463
Debt instruments issued ending balance	40,933	53,463
Bonds (senior and subordinated) [member]
Statement [LineItems]
Debt instruments issued opening balance	5,956,661
Debt instruments issued opening balance	5,956,661	5,882,100
Cash flows received	649,321	484,754
Cash flows payments	(619,148)	(893,609)
Other changes different of cash interest	340,480	319,289
Other changes different of cash currency movement	40,109	164,127
Debt instruments issued ending balance		5,956,661
Debt instruments issued ending balance	6,367,423	5,956,661
Lease obligations [member]
Statement [LineItems]
Debt instruments issued opening balance	176,795
Cash flows payments	(34,226)
Other changes different of cash acquisition	12,998
Other changes different of cash interest	15,561
Other changes different of cash currency movement	1,796
Debt instruments issued ending balance	$ 172,924	$ 176,795

General Information and Summary

General Information and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
General Information and Summary of Significant Accounting Policies	Note 1 – General Information and Summary of Significant Accounting Policies General Information – Background of Itaú Corpbanca and subsidiaries Itaú Corpbanca (the “Bank”) is a corporation incorporated under the laws of the Republic of Chile and regulated by the Commission for the Financial Market (onwards “CMF”) which, as of June 1, 2019, assumed the functions of the Superintendency of Banks and Financial Institutions (“SBIF”), according to the Decree with Force of Law (DFL) No.3 of January 12, 2019, which sets a new consolidated, systematized and agreed text for the General Bank Law. The entity is the merger result between Banco Itaú Chile and Corpbanca (the latter is the legal successor) which was consummated on April 1, 2016, the date on which the Bank was renamed “Itaú Corpbanca” 1 . The current ownership structure is 38.14% owned by Itaú Unibanco, 28.57% owned by CorpGroup (Saieh Family) and 33.29% owned by minority shareholders. Itaú Unibanco is the sole controlling shareholder of the merged bank. Within this context and without limiting the above, Itaú Unibanco and CorpGroup have signed a shareholders’ agreement relating to corporate governance, dividend policy (based on performance and capital metrics), transfer of shares, liquidity, and other matters. Itaú Corpbanca is headquartered in Chile and has operations in Colombia and Panama. In addition, Itaú Corpbanca has a branch in New York and a representative office in Lima. The Bank has total consolidated assets for MCh$33,600,585 (MMUS$48,874) and total equity attributable to holders of the Bank for MCh$3,232,103 (MMUS$4,316). The legal address of Itaú Corpbanca is Rosario Norte No. 660, Las Condes, Santiago, Chile, and its website is www.itau.cl These Consolidated Financial Statements as of December 31, 2019, were approved by the Board of Directors on April 24, 2020. Significant Accounting Policies and Others a) Accounting period The Consolidated Financial Statements are referred as of December 31, 2019 and 2018 and comprise the years ended December 31, 2019, 2018 and 2017. b) Basis of preparation of the Consolidated Financial Statements These Consolidated Financial Statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS-IASB”). These Consolidated Financial Statements incorporate a significant accounting change due to the adoption of IFRS 16 “Leases” . See new accounting policies in letter t) of this section and disclosures related to impacts and criteria applied are set forth in Note 2 - Accounting Changes. Notes to these Consolidated Financial Statements contain information additional to that disclosed in the Consolidated Statements of Financial Position, Consolidated Statements of Income, Consolidated Statements of Other Comprehensive Income, Consolidated Statements of Changes in Equity, and Consolidated Statements of Cash Flows. 1. The business combination was a “reverse acquisition” as established in IFRS 3 “Business Combinations” , in which Banco Itaú Chile is the successor for accounting purposes and Corpbanca is the legal successor. Note 1 – General Information and Summary of Significant Accounting Policies, continued c) Consolidation criteria These Consolidated Financial Statements comprise the preparation of the Financial Statements of the Bank and the controlled entities which participate in the consolidation as of December 31, 2019 and 2018 and for the years ended December 31, 2019, 2018 and 2017, and include the necessary adjustments and reclassifications to standardize the accounting policies and valuation criteria applied by the Bank, in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS-IASB”). Intercompany balances and any unrealized income or loss arising from intercompany transactions are eliminated upon consolidation during the preparation of the Consolidated Financial Statements. (i) The Bank, regardless of the nature of its involvement with an entity (the investee), shall determine whether it is a parent by assessing whether it controls the investee. The Bank controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Thus, the Bank controls an investee if and only if has all the following: 1) Power over the investee, which is related to the existing rights that give the Bank the current ability to direct the relevant activities, these being those that significantly affect the investee’s returns; 2) Exposure, or rights, to variable returns from its involvement with the investee; 3) Ability to use its power over the investee to affect the amount of the Bank’s returns; When the Bank has less than a majority of the voting rights over an investee, but such voting rights are sufficient to have the actual ability to direct the relevant activities, then it will be concluded that the Bank has control over the investee. The Bank considers all relevant factors and circumstances when assessing if the voting rights are sufficient to obtain control, these include: · The amount of voting rights held by the Bank in relation to the amount and dispersion of those held by other vote holders. · Potential voting rights held by the Bank, other voting holders or other parties. · Rights that arise from other contractual agreements. · Any additional facts and circumstances that indicate that the Bank has, or does not have, the current ability to direct the relevant activities at the time those decisions need to be made, including the patterns of voting behavior in previous shareholders meetings. The Bank reassesses whether or not it has control over an investee when facts and circumstances indicate that there are changes in one or more of the control elements listed above. The financial statements of the controlled companies are consolidated with those of the bank through the global integration method (line by line). In accordance with this method, all balances and transactions between consolidated companies are eliminated upon consolidation. Therefore, the Consolidated Financial Statements refer to assets, liabilities, equity, income, expenses, and cash flows of the parent and its subsidiaries presented as if they were a single economic entity. The Bank prepares Consolidated Financial Statements using uniform accounting policies for transactions and other events that, being similar, have occurred in similar circumstances. Note 1 – General Information and Summary of Significant Accounting Policies, continued The following table details the entities controlled by Itaú Corpbanca: Ownership percentage Functional As of December 31, 2019 As of December 31, 2018 Market Country currency Direct Indirect Total Direct Indirect Total % % % % % % Itaú Corredores de Bolsa Limitada (1) (10) (12) National Chile $ Itaú Administradora General de Fondos S.A. (1) (9) Chile $ Itaú Corredores de Seguros S.A. (1) (5) (8) Chile $ Itaú Asesorías Financieras S.A. (1) (7) (14) Chile $ CorpLegal S.A. (1) (13) (15) Chile $ — — — Recaudaciones y Cobranzas Limitada (1) (11) Chile $ Itaú Corpbanca New York Branch (1) (6) Foreign USA US$ — — Itaú Corpbanca Colombia S.A. (2) (16) Colombia COP$ — — Itaú Corredor de Seguro Colombia S.A. (2) Colombia COP$ — — Itaú Securities Services Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ Itaú Comisionista de Bolsa Colombia S.A (2) (16) Colombia COP$ Itaú Asset Management Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ — — Itaú (Panamá) S.A. (3) (16) Panama US$ — — Itaú Casa de Valores S.A (4) (16) Panama US$ — — (1) Companies regulated by the Commission for the Financial Market, hereinafter CMF (formerly Superintendency of Securities and Insurance – SVS). (2) Companies regulated by the Colombian Financial Superintendency (SFC), which has a supervision agreement with the CMF. (3) Company regulated by the Superintendency of Banks of Panama. (4) Company regulated by the Superintendency of the Securities Market of Panama. (5) On April 1, 2018, the merger of Corpbanca Corredores de Seguro S.A. and Itaú Chile Corredora de Seguros Limitada took place. (6) Company regulated by the Office of the Comptroller of the Currency (OCC) and the Federal Reserve (FED). (7) On July 4, 2018, Itaú Asesorías Financieras acquired 2 shares of the company to minority shareholders, therefore Itaú Corpbanca and subsidiaries controls, directly and indirectly, 100% of the company’s shares. (8) On September 10, 2018, Itaú Corpbanca acquired 127,901 shares of the company to minority shareholders, therefore Itaú Corpbanca controls, directly and indirectly, 100% of the company’s shares. (9) On December 10, 2018, Itaú Corpbanca acquired 1 share from a minority investor, thereby controlling (directly and indirectly) 100% of the entity. (10) On August 1, 2018, the corporate name of Itaú Corpbanca Corredores de Bolsa S.A. was changed to Itaú Corredores de Bolsa Limitada. (11) On May 2, 2019, Itaú Corpbanca Recaudaciones y Cobranzas S.A (Instacob) acquired from Itaú Corredores de Bolsa its participation in Itaú Asesorías Financieras. (12) On May 2, 2019, Itaú Corredores de Bolsa acquired from Itaú Asesoría Financieras its participation on Instacob (Itaú Corpbanca Recaudaciones y Cobranzas S.A). (13) On May 2, 2019 Itaú Corredores de Bolsa sold to Itaú Corpbanca the participation in Corplegal, with which Itaú Corpbanca becomes a 100% shareholder of the entity. (14) On May 2, 2019 Itaú Asesoría Financieras modifies its legal statute turning from a public company (S.A.) to a private limited company. (15) On May 20, 2019, the dissolution of Corplegal S.A. took place. (16) On December 3, 2019 Itaú Corpbanca completed the acquisition of Itaú Corpbanca Colombia shares owned by Helm LLC and Kresge Stock Holding Company Inc. Note 1 – General Information and Summary of Significant Accounting Policies, continued (ii) Associated entities are those over which the Bank has significant influence; although not control or joint control. If the Bank holds, directly or indirectly (e.g. through subsidiaries), 20% or more of the voting power of the investee, it is presumed that the Bank has significant influence, unless it can be clearly demonstrated that this is not the case, and subsequently increased or decreased to recognize either the Bank’s proportional share in the net profit or loss of the associate and other movements recognized in its equity. The lower value arising from the acquisition of an associate is included in the book value of the investment net of any accumulated impairment loss. Other factors considered to determine the significant influence on an entity are the representations in the Board of Directors and the existence of material transactions. The existence of these factors could determine the existence of significant influence on an entity, despite having a participation of less than 20% of the shares with the right to vote. The following entities are classified as “Associates”, were the Bank has an interest and are accounted for using the equity method, according to IAS 28: As of December 31, Associate Main Operation Operation Place 2019 % Share Nexus S.A Credit and debit card operator Santiago, Chile 12.90 % Transbank S.A Credit card operator Santiago, Chile 8.72 % Itaú Corpbanca exercises significant influence by virtue of its voting right to appoint a representative in the Board of Directors for each one of these entities. This, among other business considerations, led Management to conclude that, in 2019, Itaú Corpbanca gained significant influence over the aforementioned entities. (iii) Shares or rights in other companies are those in which the Bank has no control or significant influence. Such holdings are recorded at fair value through profit and loss or at fair value through other comprehensive income, when the Bank has irrevocably elected at initial recognition to recognize in this category, without recycling to profit or loss, according to IFRS 9 “Financial instruments” . (iv) The Bank and its subsidiaries manage assets held in publicly offered investment funds and other investment vehicles on behalf of investors and receive market-rate compensation for providing this type of services. Managed funds belong to third parties and, therefore, are not included in the Consolidated Statement of Financial Position. The Bank provides trust commissions and other fiduciary services that result in the participation or investment of assets by clients. Assets held in a fiduciary activity are not reported in the Consolidated Financial Statements, since they are not Bank assets and there is no control over them. Contingencies and commitments arising from this activity are disclosed in Note 23 - Contingencies, Commitments, and Responsibilities, letter c), related to Responsibilities recorded in off-balance-sheet accounts. Note 1 – General Information and Summary of Significant Accounting Policies, continued In accordance with IFRS 10 “ Consolidated Financial Statements ,” for consolidation purposes, the role of the Bank and its subsidiaries with respect to the managed funds must be evaluated to determine whether it is acting as Agent or Principal. According to this standard, an Agent is a party primarily engaged in acting on behalf and for the benefit of another party or parties (the Principal or Principals) and, therefore, it does not control the investee when it exercises decision-making authority. This evaluation must take into account the following aspects: · Scope of its decision-making authority over the investee. · Rights held by other parties · The remuneration to which it is entitled to in accordance with the remuneration agreements. · Decision-maker’s exposure to variability of returns from other interests that it holds in the investee. The Bank does not control or consolidate any trusts or other entities related to this type of business. The Bank manages the funds on behalf and for the benefit of investors, acting solely as an Agent. The assets managed by the Bank and its subsidiaries are owned by third parties. Under this category, and in accordance with the aforementioned standard, they do not control the assets when they exercise their decision-making authority. Therefore, as of December 31, 2019 and 2018 they act as Agent and none of these investment vehicles is consolidated. d) Non-controlling interest Non-controlling interest represents the portion of net income or loss and net assets which the Bank does not own, either directly or indirectly. It is disclosed as “Attributable to non-controlling interest” separately in the Consolidated Statement of Income. Additionally, non-controlling interests are presented in the Consolidated Statement of Financial Position under the heading "Non-controlling interest", separately from the equity attributable to owners of the Bank. Changes in a parent’s ownership interest in a subsidiary that do not result in a loss of control are equity transactions (i.e. transactions with owners in their capacity as owners). The Bank attributes the profit or loss for the period and each component of other comprehensive income to the owners of the Bank and to non-controlling interests. The Bank also attributes total comprehensive income to the owners of the Bank and non-controlling interests even if the results of the non-controlling interests result in a debit balance. e) Business combination and goodwill Business combinations are accounted for using the acquisition method. The consideration transferred in a business combination is measured at fair value, which is calculated as the sum of the acquisition-date fair values of the assets transferred by the Bank, liabilities incurred by the Bank to the former owners of the acquiree and the equity interests issued by the Bank in exchange for control of the acquiree. Acquisition costs incurred are expensed and included in administrative expenses. When Itaú Corpbanca and its subsidiaries (the Group) acquires a business, evaluates the identifiable assets acquired and liabilities assumed to determine proper classification and designation based on contractual conditions, economic circumstances, and other relevant conditions as of the acquisition date. This includes the assessment of whether an embedded derivative should be separated from a host contract in accordance with IFRS 9. Note 1 – General Information and Summary of Significant Accounting Policies, continued Goodwill, defined as the difference between the consideration transferred and the amount recognized for the non-controlling interest in the net identifiable assets acquired and liabilities assumed, is measured initially at cost. If this consideration is less than the fair value of the net assets of the acquired subsidiary, the difference is recognized directly in profit or loss as of the acquisition date. After initial recognition, goodwill is measured at cost less any accumulated impairment losses. Goodwill acquired in a business combination is assigned, from the date of acquisition, to each of the Group’s cash generating units (CGU) (or group of CGUs) that are expected to benefit from the combination, independently of whether other assets or liabilities of the acquiree are assigned to those units. When goodwill is allocated to a CGU (or group of CGUs) and an operation within that unit is sold, the goodwill associated with that operation is included in the carrying amount of the operation sold when determining the gain or loss on disposal. Goodwill that is derecognized under such circumstances is measured on the basis of the relative values of the operation disposed of and the retained portion of the CGU (or group of CGUs). f) Functional and presentation currency The Bank has defined as its functional and presentation currency the Chilean peso, which is the currency of the primary economic environment in which the Bank operates and the currency that influences its costs and revenue structure. Therefore, all balances and transactions denominated in currencies other than the Chilean peso are treated as "foreign currency". The Bank translates accounting records of its New York branch and subsidiaries in Colombia and Panama into Chilean pesos from US dollars and Colombian pesos, as applicable, in accordance with IAS 21 "Effects of the Variations in the Exchange Rates of the Foreign Currency" . All amounts in the Consolidated Statements of Income, Consolidated Statements of Other Comprehensive Income and the Consolidated Statements of Financial Position are translated into Chilean pesos according to the exchange rate indicated in letter g) below. None of the markets in which Itaú Corpbanca and its subsidiaries operate qualify as a hyperinflationary economy. g) Foreign currency Transactions in foreign currency are initially recorded by the Bank at the exchange rates of their respective functional currencies at the date these transactions first meet the conditions for their recognition. Monetary assets and liabilities denominated in foreign currency are converted at the closing exchange rate of the functional currency in force at the closing date of the reporting period. All differences arising from the settlement or conversion of monetary items are recorded in income, except for those that correspond to monetary items that are part of the hedge of a net investment in a foreign operation, for which the cumulative difference is recorded in equity and subsequently reclassified to profit and loss (on disposal). Tax effects attributable to the exchange differences on such monetary items are also recorded in Other Comprehensive Income. Non-monetary items in foreign currency, which are measured in terms of historical cost, are converted using the exchange rate on the date of the transaction. Non-monetary items that are measured at their fair value in foreign currency are translated using the exchange rates on the date on which that fair value is measured. Gains or losses arising from the translation of non-monetary items measured at their fair value are recognized based on how the gains and losses arising from the change in fair value are recognized in Other Comprehensive Income or in Income, in accordance with IAS 21. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank grants loans and receives deposits in amounts denominated in foreign currency, mainly in US dollars and Colombian pesos. Balances in the financial statements of the consolidated entities whose functional currency is different from the Chilean peso are converted into the presentation currency, according to the following criteria: · Assets and liabilities, by using exchange rates as of the date of the Consolidated Financial Statements. · Income and expenses and cash flows, by using the exchange rates as of the date of each transaction. Exchange differences arising from translating balances into functional currencies of the consolidated entities other than Chilean pesos into Chilean pesos, are recorded as "Exchange differences" in Equity under the line item "Valuation accounts", until they meet the derecognition criteria for the Consolidated Statement of Financial Position, and is subsequently recorded in profit or loss. The net amount of foreign exchange gains and losses includes the recognition of the effects of changes in the exchange rates over assets and liabilities denominated in foreign currencies and gains and losses arising from exchange rates changes affecting current and future transactions (highly probable transactions) entered into by the Bank. Assets and liabilities in foreign currencies are shown at their equivalent amount in Chilean pesos, calculated using the exchange rate of $748.77 per US$1 (US dollar) as of December 31, 2019 ($694.73 as of December 31, 2018 and $614.48 as of December 31, 2017) and the exchange rate of $0.2284 per COP$1 (Colombian peso) as of December 31, 2019 ($0.2139 as of December 31, 2018 and $0.2058 as of December 31, 2017). The financial statements of the New York branch, as well as the Colombian and Panamanian subsidiaries, have been translated using these exchange rates for consolidation purposes, in accordance with IAS 21, related to the valuation of investments abroad in countries with stable economies. h) Use of estimates and judgments The preparation of the Consolidated Financial Statements requires Bank’s management to make estimates, judgments and assumptions that affect the application of the accounting policies and the reported balances of assets and liabilities, disclosures of contingencies with respect to assets and liabilities as of the date of the Consolidated Financial Statements, as well as income and expenses during the year. Actual results may differ from these estimates. Estimates and relevant assumptions are regularly reviewed by Management in order to properly measure some assets, liabilities, income, and expenses. Accounting estimates changes due to reviews are recognized in the year in which the estimate is reviewed and in any future period affected. In certain cases, International Financial Reporting Standards requires that assets and liabilities be recorded or disclosed at their fair values. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction in the principal (or most advantageous) market at the measurement date under current market conditions (i.e. an exit price) regardless of whether that price is directly observable or estimated using another valuation technique. When market prices in active markets are available, they have been used as a basis for valuation. When market prices in active markets are not available, the Bank has estimated those values as values based on the best available information, including the use of modeling and other valuation techniques. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank has established allowances to cover expected credit losses over its loan portfolio and other financial assets. These allowances must be regularly reviewed taking into consideration factors such as changes in the nature and volume of the loan portfolio, trends in forecasted portfolio quality, credit quality and economic conditions that may adversely affect the borrowers’ ability to pay. Increases in the allowances for loan losses are reflected as “Provision for loan losses” in the Consolidated Statement of Income. Loans are charged-off when the Bank’s management determines that a loan or a portion thereof is impaired. Charge-offs are recorded as a reduction of the allowance for loan losses. In particular, information on significant areas of estimate due to uncertainties and critical judgments in the application of accounting policies that have the most important effect on the amounts recorded in the Consolidated Financial Statements are the following: · Allowances for loan losses · Fair value of financial assets and liabilities · Contingencies and commitments · Impairment losses of certain assets, including Goodwill · Current taxes and deferred taxes During the year ended December 31, 2019, there have been no significant changes compared with the prior year, other than those indicated in Note 2 to these Consolidated Financial Statements. i) Operating segments The Bank provides financial information for each operating segment in conformity with IFRS 8 “Operating Segments” in order to disclose information that enables financial statement users to evaluate the nature and financial effects of the business activities in which the Bank engages and the economic environments in which it operates and to allow them to: · Better understand the Bank’s performance. · Better evaluate its future cash flow projections. · Form better opinions regarding the Bank as a whole. To comply with IFRS 8, Itaú Corpbanca identifies operating segments (Chile and Colombia) used by the Executive Committee to analyze and make decisions regarding operating, financing and investment matters, based on the following elements: (1) The nature of the products and services; (2) The nature of the processes; (3) The type or class of customer for their products and services; (4) The methods used to distribute their products or provide their services; and (5) If applicable, the nature of the regulatory environment, for example, banking, insurance or public utilities. The Executive Committee manages these segments using an in-house system of internal profitability reports and reviews its segments on the basis of the operating results and uses efficiency, profitability and other indicators to evaluate performance and allocate resources. The Bank has also included geographic disclosures on its operations in New York and Colombia. More information on each segment is presented in Note 4 - Reporting Segments. Note 1 – General Information and Summary of Significant Accounting Policies, continued j) Transactions with resale agreements are entered into as a form of investment. Under these agreements, financial instruments are sold, which are included as assets under "Investments under resale agreement” and are accounted for at amortized cost using the effective interest rate of the agreement. There are also sales transactions with a repurchase agreement as a form of financing. In this regard, the investments that are sold subject to a repurchase obligation and that serve as collateral for the loan, form part of the investment items of "Financial instruments at fair value through profit or loss" or "Financial instruments at fair value through profit or loss". The obligation to repurchase the investment is classified in liabilities as "Repurchase agreements and securities loans", recognizing interest and inflation-indexation adjustments accrued as of the closing date. k) I. Classification of financial instrument (i) Classification of financial assets Financial assets are classified into a measurement category based on both the Bank’s business model for managing the financial asset and the contractual cash flow characteristics of the financial asset. Contractual cash flow assessment determine if the cash flows from the financial asset meet the SPPI (solely payment of principal and interest) criterion, i.e. whether the contractual terms of the financial asset give rise, on specific dates, to cash flows that are solely payments of principal and interest. Principal is the fair value of the financial assets at initial recognition, and interest is the consideration for the time value of money, the credit risk associated with the principal outstanding, and also may include liquidity risk, administrative cost and profit margin. For classification process the Bank perform the SPPI test, which assesses the contractual term to identify whether they meet SPPI criterion, the contract is a basic lending arrangement. The Bank applies judgment and considers relevant factors such as currency in which the financial asset is denominated, and period for which the interest rate is set. Business model refers to how the Bank manages its financial assets in order to generate cash flows. The Bank determined its business model on initial application of IFRS 9 at the level that best reflects how it manages groups of financial assets to achieve its business objective. The Bank’s business model represents how financial assets are managed to generate cash flows and does not depend on the Management’s intention regarding an individual instrument, but at a higher level of aggregated portfolio and is based on observable factors such as: risks that affect the performance of business model; how business managers are compensated; how the performance of business model is assessed and reported to Management. In addition, the Banks’s business model is not assessed on an instrument-by-instrument basis, but at a higher level of aggregated portfolio and is based on observable factors such as: performance of the financial assets, the risk that affect the performance, and the expected frequency, value and timing of sales, among others. Note 1 – General Information and Summary of Significant Accounting Policies, continued In accordance with IFRS 9 the business models are: · Held to collect business model (HTC) - financial assets that are held within a business model whose objective is to hold assets in order to collect contractual cash flows are managed to realize cash flows by collecting contractual payments over the life of the instrument, under this business model sales made when there is an increase in the credit risk, or to manage credit concentration risk are not inconsistent with a business model whose objective is to hold financial assets to collect contractual cash flows. · Held to collect and sell (HTC&S) - financial assets under this business model achieve the objective by both collecting contractual cash flows and selling financial assets, then involve a greater frequency and value of sales than HTC business model. · Other business model - financial assets held in this business has the objective of realizing cash flows through the sale of the assets. The Bank makes decisions based on the assets’ fair values and manages the assets to realize those fair values. (ii) Reclassifications Reclassification of financial assets is required if, and only if, the objective of the Bank’s business model for managing those financial assets changes. Financial liabilities cannot be reclassified. There are no reclassificacions in these Consolidated Financial Statements. II. Measurement of financial instruments (i) Initial measurement On initial recognition, financial assets and financial liabilities are measured at the transaction price, i.e. the fair value of the consideration given or received (IFRS 13). In the case of financial instruments not at fair value through profit or loss, transaction costs of financial assets and financial liabilities carried at fair value are expensed in profit or loss. (ii) Subsequent measurement - Financial assets After initial recognition, the Bank shall measures a financial asset at: (a) Amortized cost Financial assets that are held in a business model to collect the contractual cash flows and contain contractual terms that give rise on specific dates to cash flows that are SPPI, are measured at amortized cost. The effective interest method is used in the calculation of the amortized cost of a financial asset or a financial liability and in the allocation and recognition of the interest revenue or interest expense in profit or loss ove

Accounting Changes

Accounting Changes	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Accounting Changes	Note 2 - Accounting Changes 2.1 IFRS 16 “Leases” adoption On January 13, 2016, the IASB published IFRS 16 "Leases". The new standard, adopted on January 1, 2019, requires that leases that meet the requirements set by the standard to presented on the tenant balance sheet under a single model, eliminating the distinction between operating and financial leases. The Bank adopted the "prospectively modified” approach for the initial application of the standard, as of January 1, 2019 the required measurements were performed in order to determine the right of use assets under lease agreements and the lease contracts liabilities to be recognized as of the application date onwards, without considering the date of origin of the contract. For more detail on the recognition practices, refer to letter t) of Note 1. Bank’s Management evaluated the impact on the adoption of this standard through the valuation of its executed lease agreements, recognizing an right of use assets under lease agreements and lease contracts liabilities as of January 1, 2019 of MCh$176,795, which generated impact on the consolidated solvency indicators of 11 basis points going from 14.62% to 14.51% (for additional information see Note 35 Risk Management letter d) Capital Requirements). Below is a breakdown of the impacts and reclassifications due to initial application of the standard as of January 1, 2019: As of As of December 31, Initial January 1, 2018 recognition 2019 MCh$ MCh$ MCh$ Right of use asset under lease agreements — 176,795 176,795 Subtotals assets — 176,795 176,795 Lease contracts liabilities — 176,795 176,795 Subtotals liabilities — 176,795 176,795 Additional disclosures are presented in Note 15 - Assets for Right to Use and Obligations for Lease Contracts. 2.2 IFRS 9 “Financial instruments” adoption The Bank has adopted IFRS 9 as issued by the IASB in July 2014 with a date of transition of January 1, 2018, which resulted in changes in accounting policies. The adoption of IFRS 9 has resulted in changes in our accounting policies for recognition, classification and measurement of financial assets and financial liabilities and impairment of financial assets. IFRS 9 also significantly amends other standars dealing with financial instruments such as IFRS 7 “Financial Instruments: Disclosures”. As per the permitted transitional provisions of IFRS 9, the Bank elected not to revise comparative figures, accordingly, some IFRS 9 disclosures presented in respect to certain financial assets are not comparable because their classification may have changed between both standards. Any adjustments to the carrying amounts of financial assets and liabilities as of the date of transition were recognized as an adjustment to the opening retained earings. The Bank has also elected to continue to apply the hedge accounting requirements of IAS 39 on the adoption of IFRS 9. The comparative period disclosures show those disclosures made in the prior year. Note 2 - Accounting Changes, continued Set out below are disclosures regarding the impact of the adoption of IFRS 9 on the Bank and further details of the specific IFRS 9 accounting policies applied in the current period (as well as the previous IAS 39 accounting policies applied in the comparative period). a) Classification and measurement of financial instrument IAS 39 as of December 31, 2017 IFRS 9 as of January 1, 2018 Measurement Book Value Measurement Book Value Balance category Portfolio MCh$ category Portfolio MCh$ Trading investments Fair value through profit or loss Financial instruments classified as trading investments 415,061 Financial instruments at fair value through profit or loss Financial instruments at fair value through profit or loss 423,855 Investments instruments Fair value through profit or loss Financial assets available for sale (including those that were valued at cost at December) 2,663,478 Financial instruments at fair value through other comprehensive income Financial instruments at fair value through other comprehensive income 2,658,739 Amortized cost Financial assets classified as held to maturity 202,030 Amortized cost Financial instruments at fair value through profit or loss 201,993 Loans and accounts receivable from customers Amortized cost Loans and accounts receivable from customers, net of allowances for loan losses according to IAS 39. 19,764,078 Amortized cost Loans and accounts receivable from customers, net of allowances for loan losses according to IFRS 9. 19,612,201 Interbank loans Amortized cost Interbank loans, net of allowances for loan losses according to IAS 39. 70,077 Amortized cost Interbank loans, net of allowances for loan losses according to IFRS 9. 70,077 b) The following table shows in detail the reconciliation the consolidated balance sheet under IAS 39 as of 31 December 2017 to IFRS 9 as of 1 January 2018 distinguishing between the impacts due to classification and measurement and due to impairment once adopted IFRS 9: Note 2 - Accounting Changes, continued IAS 39 Carrying IFRS 9 Carrying amount As of amount As of December 31, 2017 Reclassifications Remeasurements January 1, 2018 MCh$ MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 964,030 — — 964,030 Cash items in process of collection 157,017 — — 157,017 Financial instruments at fair value through profit or loss — 421,331 2,524 423,855 (i) Financial instruments at fair value through other comprehensive income — 2,657,208 1,531 2,658,739 (ii) Interbank loans at amortized cost — 70,077 — 70,077 (iii) Loans and accounts receivable from customers at amortized cost — 19,764,078 (151,877) 19,612,201 (iv) Financial instruments at amortized cost — 202,030 (37) 201,993 (v) Investments under resale agreements 28,524 — — 28,524 Financial derivative contracts 1,248,775 — — 1,248,775 Interbank loans, net 70,077 (70,077) — — Trading investments 415,061 (415,061) — Loans and accounts receivable from customers, net 19,764,078 (19,764,078) — — Available for sale investments 2,663,478 (2,663,478) — — Held to maturity investments 202,030 (202,030) — — Intangible assets 1,562,654 — — 1,562,654 Property, plant, and equipment 130,579 — — 130,579 Current taxes 238,452 — — 238,452 Deferred taxes 140,685 — 42,792 183,477 (vi) Other assets 429,025 — — 429,025 Other non-current assets held for sale 18,308 — — 18,308 TOTAL ASSETS 28,032,773 — (105,067) 27,927,706 LIABILITIES — Deposits and other demand liabilities 4,141,667 — — 4,141,667 Cash in process of being cleared 109,496 — — 109,496 Obligations under repurchase agreements 420,920 — — 420,920 Time deposits and other time liabilities 10,065,243 — — 10,065,243 Financial derivative contracts 1,095,154 — — 1,095,154 Interbank borrowings 2,196,130 — — 2,196,130 Debt instruments issued 5,950,038 — — 5,950,038 Other financial liabilities 17,066 — — 17,066 Current taxes 624 — — 624 Deferred taxes 26,354 — (2,550) 23,804 (vii) Provisions 117,889 — 20,801 138,690 (viii) Other liabilities 463,435 — — 463,435 Liabilities directly associated with non-current assets held for sale — — — — TOTAL LIABILITIES 24,604,016 — 18,251 24,622,267 EQUITY Attributable to equity holders of the Bank: Capital 1,862,826 — — 1,862,826 Reserves 1,290,131 — — 1,290,131 Valuation accounts (4,735) — 997 (3,738) (ix) Retained earnings: 63,255 — (123,082) (59,827) Retained earnings from prior years 12,668 — (55,261) (42,593) (x) Net income for the year 67,821 — (67,821) — Less: Provision for mandatory dividends (17,234) — — (17,234) Total equity attributable to equity holders of the Bank 3,211,477 — (122,085) 3,089,392 Non-controlling interest 217,280 — (1,233) 216,047 (xi) TOTAL EQUITY 3,428,757 — (123,318) 3,305,439 TOTAL LIABILITIES AND EQUITY 28,032,773 — (105,067) 27,927,706 (i) Includes reclassifications and remeasurements of instruments previously classified as Trading investments and investments in equity instruments previously classified as Available for sale investments according to IAS 39. (ii) Includes reclassifications and reamesurements of financial assets previously classified as Available for sale instruments according to IAS 39. (iii) Includes reclassifications of financial instruments previously classified as Interbank loans according to IAS 39 and remesurement of the allowances for expected credit losses under the new model according to IFRS 9. Note 2 - Accounting Changes, continued (iv) Includes reclassifications of financial instruments previously classified as Loans and accounts receivable from customers according to IAS 39 and remesurement of the allowances for expected credit losses under the new model according to IFRS 9. (v) Includes reclassifications of financial instruments previously classified as held to maturity investments according to IAS 39 and reamesurement due to allowances for expected credit losses under the new model according to IFRS 9. (vi) Recognition of deferred taxes according to IAS 12 due to IFRS 9 adoption. (vii) Recognition of deferred taxes according to IAS 12 due to IFRS 9 adoption. (viii) Includes the recognition of provision for expected credit losses related to Contingent loans under the new model according to IFRS 9. (ix) Includes remeasurement due to recognition of credit risk related to financial assets classified as FVTOCI. (x) Includes all the effects due to IFRS 9 first application. (xi) Includes the non-controlling portion of the effects arising from IFRS 9 first application. There were no changes to the classification and measurement of financial liabilities. The composition of the loan portfolio classified as Loans and accounts receivable at amortized cost as of January 1, 2018 is as follows: Individual Group Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Total loans Balances as of December 31, 2017 12,409,654 3,813,662 728,918 16,952,234 962,263 1,776,783 452,505 3,191,551 20,143,785 Restatement of the prior year — — — — — — — — — Balances as of January 1, 2018 12,409,654 3,813,662 728,918 16,952,234 962,263 1,776,783 452,505 3,191,551 20,143,785

Significant Events

Significant Events	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Significant Events	Note 3 - Significant Events As of December 31, 2019, the following significant events have influenced the operations of the Bank and its subsidiaries or the Consolidated Financial Statements: ITAÚ CORPBANCA Annual Ordinary Shareholders’ Meeting Agreements At the Ordinary Shareholders Meeting of Itaú Corpbanca, held on March 19, 2019, the following agreements were adopted, among others: 1) The Board of Directors was completely renewed, electing the following eleven (11) Directors and two (2) Alternate Directors, in accordance with the Statutes of Itaú Corpbanca: Directors Jorge Andrés Saieh Guzmán Ricardo Villela Marino Jorge Selume Zaror Fernando Aguad Dagach Caio Ibrahim David Milton Maluhy Filho Andrés Bucher Cepeda Gustavo Arriagada Morales Pedro Samhan Escándar Bernard Pasquier Fernando Concha Ureta Alternate Directors: Diego Fresco Gutiérrez Jessica López Saffie It was submitted that directors, Mr. Gustavo Arriagada Morales, Mr. Pedro Samhan Escándar, Bernard Pasquier and Fernando Concha Ureta, were appointed as independent directors, in accordance with the provisions of article 50 bis of Law No. 18,046. 2) It was approved to distribute 30% of the profits of the year ended on December 31, 2018 as a dividend to shareholders, which corresponds to the amount of MCh$51,614, which entitles a dividend per share of $0.100728627. Close of the representative office in Madrid On April 24, 2019, the SBIF (currently CMF) was informed of the intention to close the representative office in Madrid, which was completed on July 31, 2019. Acquisition of the MCC entities On May 28, 2019, the Board of Directors of Itaú Corpbanca approved the acquisition of the MCC entities, which include MCC Securities Inc., MCC Asesorías Ltda. and MCC S.A. Corredores de Bolsa, in accordance with the provisions of the Transaction Agreement and in compliance with the provisions of Title XVI of Law No. 18,046 on Corporations. Note 3 - Significant Events, continued The acquisition of the MCC entities by Itaú Corpbanca is subject to the approval of the corresponding regulators, including the Commission for the Financial Market (CMF). The detail of the aforementioned transaction is further discussed on Note 23 Contingencies, Commitments and Responsibilities, letter b). Purchase of shares in Itaú Corpbanca Colombia shares (participation held by Helm LLC and KSHC ) On May 29, 2019, the CMF authorized the Bank to acquire the participation held by Helm LLC and KSHC in Itaú Corpbanca Colombia of 19.44% and 1.38%, respectively. On July 4, 2019, the Central Bank of Chile authorized the acquisition of 19.44% of Helm LLC’s ownership and 1.38% of KSHC’s ownership, under the terms set forth by said authority. On December 3, 2019, after obtaining regulatory approvals from banking supervisors in Chile, Colombia and Brazil, Itaú Corpbanca completed the acquisition of the shares. The interests of Helm LLC and Kresge Stock Holding Company Inc. were acquired by Itaú Corpbanca in a number of shares representing 20.82% of the share capital of Itaú Corpbanca Colombia, for a total price of approximately US$ 334 million. As a result of these acquisitions, Itaú Corpbanca owns 87.10% of the capital stock of Itaú Corpbanca Colombia. Subsequent to these transactions, the shareholders agreement dated July 31, 2013, which applied with respect to Itaú Corpbanca Colombia, was terminated. ITAÚ CORREDORES DE SEGUROS S.A. On March 18, 2019, at the Ordinary Shareholders Meeting, 61.1027% of the profits for 2018 were distributed, which corresponds to the amount of MCh$14,722, as a dividend to shareholders. The Board of Directors of the Company was renewed at the same Ordinary Shareholders Meeting. The following Directors were appointed: Cristián Toro Cañas Arturo Achondo Guzman Julian Acuna Moreno Walter Krefft Moreno Pablo Meyer Black On August 28, 2019, the Chairman of the Board of Directors, in ordinary session, Mr. Cristián Toro Cañas, reports that on the 23rd of the same month, Mr. Arturo Achondo Guzmán submitted his resignation to the position of Chief Executive Officer and Director of the company. In its place, the Board of Directors unanimously agreed on the appointment of Mr. Felipe Benavente Nazar as Chief Executive Officer who assumed his duties as of September 2, 2019. On September 30, 2019, in an extraordinary session, the Board of Directors agreed to appoint Mr. Felipe Benavente Nazar as Director of the company, remaining in this position until the next Ordinary Shareholders Meeting. This situation was communicated to the Commission for the Financial Market. Note 3 - Significant Events, continued ITAÚ ADMINISTRADORA GENERAL DE FONDOS S.A. In an ordinary session of the Board of Directors dated February 25, 2019, the Board of Itaú AGF was informed and resolved to accept the resignation of the director Mr. Fernando Beyruti. Consequently, and given the vacancy of the position, the Board of Directors of Itaú AGF designed Mr. Jorge Novis Neto as a replacement for Mr. Beyruti, as of that date. During the session, Mrs. Luciana Hildebrandi Marchione was appointed as director of the Company. On March 18, 2019, the Ordinary Shareholders' Meeting of Itaú Administradora General de Fondos S.A. was held, where it was approved to distribute all of the profits for the year ended December 31, 2018, as dividends, for an equivalent amount of MCh$6,790. During the meeting, the renewal of the members of the Board of Directors was approved in accordance with the provisions of Article 32 of Law 18,046, the following persons were appointed as directors of Itaú Administradora General de Fondos S.A.: Gabriel Amado de Moura Marcello Siniscalchi Julian Acuna Moreno Jorge Novis Neto Luciana Hildebrandi Marchione In extraordinary session of the Board of Directors held on May 27, 2019, the resignation of the Director of the Company, Mr. Marcello Siniscalchi, was accepted, which became effective immediately. ITAÚ ASESORÍAS FINANCIERAS LTDA. On March 15, 2019, it was agreed at the Ordinary Shareholders Meeting to distribute 90% of the profits for the year ended December 31, 2018, amounting to MCh$7,489 as dividends. On April 5, 2019, the CMF authorized by letter addressed to the Chief Executive Officer of Itaú Corpbanca the following: · Recaudaciones y Cobranzas Limitada may acquire from Itaú Corpbanca Corredores de Bolsa S.A. the full shares that said entity holds in Itaú Asesoría Financieras Limitada. · Itaú Asesorías Financieras S.A. proceeded to be transformed into a private limited liability company. On May 2, 2019, Itaú Corredores de Bolsa sold its stake in Itaú Asesorías Financieras, corresponding to 3 shares of a total of 30,000, to Recaudaciones y Cobranzas Limitada. On this same date, an Extraordinary Shareholders Meeting was held, where the transformation of Itaú Asesorías Financieras S.A. was unanimously agreed to a private limited liability company, changing its name to Itaú Asesorías Financieras Limitada. Note 3 - Significant Events, continued CORPLEGAL S.A. On January 8, 2019, authorization was requested to the CMF in order to proceed with the dissolution of the subsidiary CorpLegal S.A., in order to conduct the dissolution, Itaú Corpbanca will acquire the participation of CorpLegal held by Itaú Corredores de Bolsa (the “transaction”), both subsidiaries of the Bank, as a result of this transaction, all of its shares will be held by one shareholder, meeting with the provisions of article 103 number 2 of Law 18,046 to dissolve a Corporation, the transaction was authorized by SBIF (currently CMF) on February 26, 2019. During the Board of Directors of the Bank held on March 27, 2019, it was approved the dissolution of CorpLegal S.A. in the terms mentioned above. On May 20, 2019, the dissolution of the company and subsidiary of Itaú Corpbanca, Corplegal S.A., was materialized. ITAÚ CORPBANCA COLOMBIA Dividend distribution As stated in the irrevocable commitment of the Bank with the Financial Superintendence of Colombia to capitalize the profits generated in 2018, it was approved at the Ordinary Shareholders Meeting held on March 23, 2018, to capitalize 100% of the profits for the year ended December 31, 2018 for a total amount of COP$10,343,857,073.51, as legal reserve. Directors appointment On March 18, 2019 a Shareholders Meeting was held, where the Board of Directors for the period 2019-2020 was elected. The following members were appointed: Roberto de Santa Ana Brigard Holguín Luis Fernando Martínez Lema Cristián Toro Cañas Gabriel Amado de Moura Juan Bernabé Echeverría González Manuel Olivares Rossetti Maria Carmiña Ferro Iriarte Mónica Inés María Aparicio Smith Rafael Pardo Soto Statutes modifications On December 10, 2019, the statutes of Itaú Corpbanca Colombia S.A. were modified, decreasing the number of members of the Board of Directors from 9 directors to 5 directors. At the Shareholders' Meeting, the following Directors were appointed: Roberto Brigard Holguin Mónica Aparicio Smith Manuel Olivares Rossetti Gabriel Amado de Moura Juan Echeverría González

Reporting Segments

Reporting Segments	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Reporting Segments	Note 4 - Reporting Segments The information reported by segments is determined by the Bank on the basis of its operating segments (Chile, that includes the New York branch, and Colombia), which are mainly differentiated by the risks and rewards that affect them. The reporting segments and the criteria used to inform the highest authority of the Bank on the decision making of the operation are in accordance with what is set forth in IFRS 8 “Operating segments”. a) Segments According to the above, the descriptions of each operating segment are as follows: i) Chile The Bank’s business activities in Chile take place mainly in the local market. It has strategically aligned its operations into the following five business areas that are directly related to its customers’ needs and the Bank’s strategy: 1) Wholesale Banking (a) Corporate Banking, (b) Large Companies, and (c) Real Estate and Construction; 2) Retail Banking (a) Itaú Private Bank, (b) Itaú Companies, (c) Itaú Personal Bank (d) Itaú and (e) Banco Condell; 3) Treasury; 4) Corporate; and 5) Other financial services. The Bank manages these business areas using a reporting system for internal profitability. The operating results are reviewed regularly by the entity’s Chief Operating Decision Maker (CODM) for operating decisions as one single reporting segment, to decide about resource allocation for the segment and evaluate its performance. The Bank did not enter into transactions with a particular customer or third party that exceed 10% of its total revenue in 2019, 2018 and 2017. ii) Colombia Colombia has been identified as a separate operating segment based on the business activities. Its operating results are regularly reviewed by the entity’s Chief Operating Decision Maker (CODM) for operating decisions as one single reporting segment, to decide on the resource allocation for the segment and evaluate its performance. Separate financial information is available for this reporting segment. The commercial activities of this segment are carried out by Itaú Corpbanca Colombia S.A. and subsidiaries b) Geographical information The segments reported by Itaú Corpbanca, discloses revenue from ordinary activities from external clients: (i) attributed to the entity’s country of domicile and (ii) attributed, in aggregate, to all foreign countries where the entity obtains revenue. Note 4 - Reporting Segments, continued When revenue from external customers attributed to a particular foreign country is significant, it is disclosed separately. Pursuant to the foregoing, the Bank operates in two main geographic areas: Chile and Colombia. Chile reporting segment includes operations carried out by Itaú Corpbanca New York branch and the Colombia reporting segment includes the operations carried out by Itaú S.A. (Panama) and Itaú Casa de Valores S.A. The information on interest income and interest expenses for the years ended December 31, 2019, 2018 and 2017 of the aforementioned reporting segments is presented below: 2019 2018 2017 Chile Colombia Total Chile Colombia Total Chile Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Interest income 1,245,465 528,175 1,773,640 1,208,481 530,836 1,739,317 1,067,124 579,205 1,646,329 Interest expense (631,279) (241,943) (873,222) (593,796) (257,858) (851,654) (529,584) (333,763) (863,347) Net interest income 614,186 286,232 900,418 614,685 272,978 887,663 537,540 245,442 782,982 Note 4 - Reporting Segments, continued c) Information on assets, liabilities and income Segment information on assets and liabilities is presented as of December 31, 2019 and 2018. c.1) Assets and Liabilities As of December 31, 2019 Note Chile Colombia Total MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 610,901 398,780 1,009,681 Cash items in process of collection 5b) 230,595 710 231,305 Financial instruments at fair value through profit or loss 6 112,224 71,478 183,702 Financial instruments at fair value through other comprehensive income 11 2,751,959 846,931 3,598,890 Loans and accounts receivable at amortized cost and interbank loans 9-10 17,651,839 4,659,254 22,311,093 Investment in associates 12 5,833 3,772 9,605 Financial instruments at amortized cost 11 30,123 85,535 115,658 Investments under resale agreements 7 46,686 29,289 75,975 Financial derivative contracts 8 3,061,530 93,427 3,154,957 Intangible assets (*) 13 1,408,003 166,430 1,574,433 Property, plant, and equipment 14 73,169 21,911 95,080 Right of use assets under lease agreements 15 128,868 38,573 167,441 Current taxes 16 30,773 54,743 85,516 Deferred taxes 16 200,747 7,910 208,657 Other assets 17a) 699,679 71,182 770,861 Other non-current assets held for sale 17b) 10,291 6,911 17,202 TOTAL ASSETS 27,053,220 6,556,836 33,610,056 As of December 31, 2019 Note Chile Colombia Total MCh$ MCh$ MCh$ LIABILITIES Deposits and other demand liabilities 18a) 2,765,496 2,107,952 4,873,448 Cash in process of being cleared 5b) 164,573 — 164,573 Obligations under repurchase agreements 7b) 499,136 60,321 559,457 Time deposits and other time liabilities 18b) 9,700,785 1,919,402 11,620,187 Financial derivative contracts 8 2,839,914 98,120 2,938,034 Interbank borrowings 19 1,883,900 762,856 2,646,756 Debt instruments issued 20 5,687,763 720,593 6,408,356 Other financial liabilities 20 12,966 — 12,966 Lease contracts liabilities 15 137,334 35,590 172,924 Current taxes 16 13 — 13 Deferred taxes 16 — 263 263 Provisions 21 88,579 89,248 177,827 Other liabilities 22a) 653,786 55,128 708,914 Liabilities directly associated with non-current assets held for sale 22b) — — — TOTAL LIABILITIES 24,434,245 5,849,473 30,283,718 (*) This includes goodwill generated in business combination between Itaú Chile and Corpbanca totaling MCh$1,151,019 as of December 31, 2019. Note 4 - Reporting Segments, continued As of December 31, 2018 Note Chile Colombia Total MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 483,416 504,264 987,680 Cash items in process of collection 5b) 318,433 225 318,658 Financial instruments at fair value through profit or loss 6 54,162 42,781 96,943 Financial instruments at fair value through other comprehensive income 8 1,594,955 1,062,199 2,657,154 Loans and accounts receivable at amortized cost and interbank loans 6 16,616,358 4,439,256 21,055,614 Financial instruments at amortized cost 10 122,385 76,538 198,923 Investments under resale agreements 11 91,510 17,957 109,467 Financial derivative contracts 11 1,266,218 102,739 1,368,957 Intangible assets (*) 13 1,432,529 138,435 1,570,964 Property, plant, and equipment 14 78,430 17,134 95,564 Right of use asset under lease agreements 15 — — — Current taxes 16 70,255 52,874 123,129 Deferred taxes 16 151,194 27,492 178,686 Other assets 17a) 378,691 123,106 501,797 Other non-current assets held for sale 17b) 59,802 — 59,802 TOTAL ASSETS 22,718,338 6,605,000 29,323,338 As of December 31, 2018 Note Chile Colombia Total MCh$ MCh$ MCh$ LIABILITIES Deposits and other demand liabilities 18a) 2,463,722 1,836,753 4,300,475 Cash in process of being cleared 5b) 247,165 — 247,165 Obligations under repurchase agreements 7b) 370,623 644,991 1,015,614 Time deposits and other time liabilities 18b) 8,104,729 2,016,382 10,121,111 Financial derivative contracts 8 1,035,394 77,412 1,112,806 Interbank borrowings 19 1,602,125 725,598 2,327,723 Debt instruments issued 20 5,445,000 565,124 6,010,124 Other financial liabilities 20 12,400 — 12,400 Lease contracts liabilities 15 — — — Current taxes 16 528 663 1,191 Deferred taxes 16 — 471 471 Provisions 21 140,663 74,240 214,903 Other liabilities 22a) 471,672 50,123 521,795 Liabilities directly associated with non-current assets held for sale 22b) — — — TOTAL LIABILITIES 19,894,021 5,991,757 25,885,778 (*) This includes goodwill generated in business combination between Itaú Chile and Corpbanca totaling MCh$1,135,392 as of December 31, 2018. Note 4 - Reporting Segments, continued c.2) Income for the years ended December 31, 2019, 2018, and 2017 2019 2018 2017 Chile Colombia Total Chile Colombia Total Chile Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Net interest income 614,186 286,232 900,418 614,685 272,978 887,663 537,540 245,442 782,982 Net fee and commission income 138,007 36,397 174,404 149,673 36,456 186,129 135,624 41,947 177,571 Net income from financial operations 152,600 (8,966) 143,634 128,264 44,491 172,755 (49,615) 57,883 8,268 Net foreign exchange gain (loss) (24,389) 52,015 27,626 5,726 (23,691) (17,965) 34,661 11,504 46,165 Other operating income 20,460 24,512 44,972 14,337 12,319 26,656 33,398 8,134 41,532 Provision for loan losses (295,116) (87,562) (382,678) (127,804) (151,994) (279,798) (169,233) (146,184) (315,417) NET OPERATING PROFIT 605,748 302,628 908,376 784,881 190,559 975,440 522,375 218,726 741,101 Depreciation and amortization (86,593) (40,573) (127,166) (53,544) (33,273) (86,817) (51,213) (30,632) (81,845) Operating expenses (*) (394,271) (215,096) (609,367) (442,943) (211,767) (654,710) (424,733) (224,569) (649,302) OPERATING INCOME 124,884 46,959 171,843 288,394 (54,481) 233,913 46,429 (36,475) 9,954 Income from investment in associates 800 (268) 532 — — — — — — Income taxes (33,393) (14,460) (47,853) (85,269) 18,210 (67,059) 31,188 21,683 52,871 CONSOLIDATED INCOME FOR THE YEAR 92,291 32,231 124,522 203,125 (36,271) 166,854 77,617 (14,792) 62,825 (*) Includes personnel salaries and expenses, administrative expenses, impairment, and other operating expenses

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Cash and Cash Equivalents	Note 5 - Cash and Cash Equivalents a) Detail of cash and cash equivalents The detail of the balances included under cash and cash equivalents is as follows: As of December 31, 2019 2018 MCh$ MCh$ Cash and deposits in banks Cash 253,779 255,449 Deposits in the Central Bank of Chile 103,756 70,444 Deposits in local banks 14,254 4,422 Deposits in foreign banks 637,892 657,365 Subtotals cash and deposits in banks 1,009,681 987,680 Cash items in process of collection, net 66,732 71,493 Highly liquid financial instruments (1) 295,551 194,412 Investments under resale agreements (2) 75,975 109,467 Totals cash and cash equivalents 1,447,939 1,363,052 (1) Highly liquid financial instruments: Corresponds to those financial instruments included in the Financial instruments at fair value through profit or loss Financial trading and available-for-sale portfolios with maturities that do not exceed three months from the acquisition date and the detail is as follows: As of December 31, Notes 2019 2018 MCh$ MCh$ Highly liquid financial instruments Financial instruments at fair value through profit or loss 6 28,772 15,741 Financial instruments at fair value through other comprehensive income 11 266,779 178,671 Totals 295,551 194,412 (2) Investments under resale agreements: corresponds to resale agreements with maturities that do not exceed three months from the acquisition date, which are presented under the item "Investments under resale agreements" in the Consolidated Statement of Financial Position. The detail is as follows: As of December 31, Notes 2019 2018 MCh$ MCh$ Investment under resale agreements 7a) 75,975 109,467 Note 5 - Cash and Cash Equivalents, continued b) Cash in process of collection and in process of being cleared Cash items in process of collection and in process of being cleared represent domestic transactions, which have not been processed through the central domestic clearinghouse, or international transactions that may be delayed in settlement due to timing differences. The detail of these balances is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets Documents held by other banks (documents to be cleared) 76,922 77,085 Funds receivable 154,383 241,573 Subtotals assets 231,305 318,658 Liabilities Funds payable 164,573 247,165 Subtotals liabilities 164,573 247,165 Cash items in process of collection, net 66,732 71,493 c) Based on the nature of its activities, the Bank considers that its funding has a direct relationship with its loan and investing portfolio; for such purpose all those activities are taken into consideration to determine, approve and monitor the financial strategies that guide the Bank with respect to the composition of its assets and liabilities, cash inflows and outflows and transactions with financial instruments. Finally, the Bank, based on its overall business strategy, considers that gains and losses derived from these transactions are part of the main revenue generating activities and core business, and that the presentation of the cash flows from those items under operating activities consequently shows consistency between our Consolidated Statement of Income and our Consolidated Statement of Cash Flows. Examples of cash flows from operating activities are: i. Investments under resale agreements and obligations under repurchase agreements . These items represent the cash flows (collections and payments) corresponding to the purchase and sale of obligations and securities lending associated with financial intermediation activities (see Note 7). ii. Investments portfolio. This item represents the cash flows (collections and payments) of our trading and investment portfolios (see Notes 6 and 11). iii. Foreign borrowings and repayment of foreign borrowings. These items represent the cash flows (funds received and payments made) from interbank borrowings (see note 18) which are mainly used in the financing of customers through foreign trade loans, which are included as part of the following items: “Interbank loans” (see Note 9) and “Loans and accounts receivable from customers” (see Note 10). iv. Increase and repayment of other borrowings. These items represent the cash flows (collections and payments) arising from the obligations corresponding to financing or operations specific to the business (see Note 19).

Financial Instruments at Fair V

Financial Instruments at Fair Value through Profit or Loss	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Financial Instruments at Fair Value through Profit or Loss	Note 6 - The detail of the financial instruments at fair value through profit or loss is as follows: As of December 31, 2019 2018 MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 52,019 21,736 Other Chilean Central Bank and Government securities 28,879 14,872 Other Chilean securities Bonds 905 3 Notes — 4,014 Other securities 22,218 — Foreign financial securities Bonds 67,088 23,276 Other securities 4,390 19,505 Investments in mutual funds Funds managed by related entities 5,870 3,532 Funds managed by third parties 33 — Other investments Other financial instruments at FVTPL 2,300 10,005 Totals 183,702 96,943 As of December 31, 2019, financial instruments at fair value through profit or loss include MCh$28,772 (MCh$15,741 as of December 31, 2018) in instruments with maturities which do not exceed three months from the acquisition date and are considered as cash equivalents (see Note 5).

Investments under Resale Agreem

Investments under Resale Agreements and Obligations under Repurchase Agreements	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Investments under Resale Agreements and Obligations under Repurchase Agreements	Note 7 - Investments under Resale Agreements and Obligations under Repurchase Agreements a) The Bank purchases financial instruments agreeing to resell them at a future date. As of December 31, 2019 and 2018 the instruments acquired under resale agreements are as follows: As of December 31, 2019 As of December 31, 2018 Between 3 Between 3 Up to 3 months and Over 1 Up to 3 months and Over 1 months 1 year year Totals months 1 year year Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 20,593 — — 20,593 14,533 — — 14,533 Government securities 17,491 — — 17,491 76,977 — — 76,977 Other Chilean Central Bank and Government securities — — — — — — — — Other Chilean securities Bonds 8,603 — — 8,603 — — — — Notes — — — — — — — — Other securities — — — — — — — — Foreign financial securities Central Banks and Government securities 27,546 — — 27,546 17,351 — — 17,351 Other foreign instruments 1,742 — — 1,742 606 — — 606 Totals 75,975 — — 75,975 109,467 — — 109,467 b) As of December 31, 2019 and 2018, the instruments acquired under agreements to repurchase are as follows: As of December 31, 2019 As of December 31, 2018 Between 3 Between 3 Up to 3 months and Over 1 Up to 3 months and Over 1 months 1 year year Totals months 1 year year Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 168,778 — — 168,778 21,018 — — 21,018 Government securities 11,970 — — 11,970 283,898 — — 283,898 Other Chilean Central Bank and Government securities — — — — — — — — Other Chilean securities Bonds 318,389 — — 318,389 — — — — Notes — — — — — — — — Other Chilean securities — — — — 65,707 — — 65,707 Foreign financial securities Central Banks and Government securities — — — — — — — — Other foreign instruments 60,320 — — 60,320 644,991 — — 644,991 Totals 559,457 — — 559,457 1,015,614 — — 1,015,614

Financial Derivative Contracts

Financial Derivative Contracts and Hedge Accounting	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Financial Derivative Contracts and Hedge Accounting	Note 8 - Financial Derivative Contracts and Hedge Accounting a) Total derivative contracts portfolio The Bank and subsidiaries use the following derivative financial instruments for hedge accounting and trading purposes, which, in order to capture the credit risk in the valuation, are adjusted to reflect the CVA (Credit Value Adjustment) and DVA (Debit Value Adjustment). The detail of these instruments is presented below: As of December 31, 2019 As of December 31, 2018 Assets Liabilities Assets Liabilities MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 203,868 144,069 86,562 75,615 Derivatives held for trading 2,951,089 2,793,965 1,282,395 1,037,191 Totals 3,154,957 2,938,034 1,368,957 1,112,806 a.1) Financial derivative assets As of December 31, 2019 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 8,174,950 3,931,647 1,234,741 454,300 Currency swaps 217,953 923,526 6,640,937 855,780 Interest rate swaps 4,125,562 7,225,228 31,308,891 1,840,855 Call currency options 34,713 49,753 748 3,805 Put currency options 5,067 15,940 — 217 Totals 12,558,245 12,146,094 39,185,317 3,154,957 As of December 31, 2018 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 3,643,505 703,790 419,833 342,993 Currency swaps 168,254 1,817,002 6,449,984 468,093 Interest rate swaps 3,061,784 8,933,622 34,958,699 553,608 Call currency options 26,435 102,163 17,750 4,217 Put currency options 1,119 33,260 — 46 Totals 6,901,097 11,589,837 41,846,266 1,368,957 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued a.2) Financial derivative liabilities As of December 31, 2019 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 11,622,926 4,440,565 830,870 504,276 Currency swaps 182,481 831,635 6,249,881 769,072 Interest rate swaps 2,939,069 6,101,205 29,362,545 1,662,363 Call currency options 31,482 51,810 — 1,758 Put currency options 18,837 39,941 374 565 Totals 14,794,795 11,465,156 36,443,670 2,938,034 As of December 31, 2018 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 1,406,262 550,427 113,872 322,241 Currency swaps 658,937 1,035,357 3,169,546 298,415 Interest rate swaps 3,111,787 5,826,465 26,522,433 489,718 Call currency options 11,540 35,344 — 1,493 Put currency options 16,367 38,172 11,115 939 Totals 5,204,893 7,485,765 29,816,966 1,112,806 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued a.3) Portfolio detail As of December 31, 2019 and 2018, the portfolio of financial derivative instruments held for hedge accounting and trading purposes is as follows: As of December 31, 2019 Notional Fair value Between 3 months and Up to 3 months 1 year Over 1 year Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 3,679,576 1,371,790 3,072,685 203,868 144,069 Fair value hedge Currency forwards — — — — — Currency swaps — — 47,463 — 1,479 Interest rate swaps — 29,342 1,952,968 152,011 50,247 Subtotals — 29,342 2,000,431 152,011 51,726 Cash flow hedge Currency forwards 1,426,697 849,243 556,633 4,174 17,798 Currency swaps — 47,155 78,592 6,145 2,703 Interest rate swaps 32,408 — 437,029 2,722 5,820 Subtotals 1,459,105 896,398 1,072,254 13,041 26,321 Hedge of net investment in a foreign operation Currency forwards 2,220,471 446,050 — 38,816 66,022 Subtotals 2,220,471 446,050 — 38,816 66,022 Derivatives held for trading 23,673,464 22,239,460 72,556,302 2,951,089 2,793,965 Currency forwards 16,150,708 7,076,919 1,508,978 411,310 420,456 Currency swaps 400,434 1,708,006 12,764,763 849,635 764,890 Interest rate swaps 7,032,223 13,297,091 58,281,439 1,686,122 1,606,296 Call currency options 66,195 101,563 748 3,805 1,758 Put currency options 23,904 55,881 374 217 565 Subtotals 23,673,464 22,239,460 72,556,302 2,951,089 2,793,965 Totals 27,353,040 23,611,250 75,628,987 3,154,957 2,938,034 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Fair value Between 3 months and Up to 3 months 1 year Over 1 year MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 3,744,312 1,323,671 2,527,255 86,562 75,615 Fair value hedge Currency forwards 32,639 17,421 102,847 16,461 5,814 Currency swaps 610,980 192,926 — 7,697 11,038 Interest rate swaps 1,231 52,105 2,194,956 15,492 16,995 Subtotals 644,850 262,452 2,297,803 39,650 33,847 Cash flow hedge Currency forwards 2,188,426 — 130,191 4,835 1,283 Currency swaps — 330,033 — 13,363 17,593 Interest rate swaps — 198,573 99,261 1,119 1,892 Subtotals 2,188,426 528,606 229,452 19,317 20,768 Hedge of net investment in a foreign operation Currency forwards 911,036 532,613 — 27,595 21,000 Subtotal 911,036 532,613 — 27,595 21,000 Derivatives held for trading 8,361,678 17,751,931 69,135,977 1,282,395 1,037,191 Currency forwards 1,917,666 704,183 300,667 294,102 294,144 Currency swaps 216,211 2,329,400 9,619,530 447,033 269,784 Interest rate swaps 6,172,340 14,509,409 59,186,915 536,997 470,831 Call currency options 37,975 137,507 17,750 4,217 1,493 Put currency options 17,486 71,432 11,115 46 939 Subtotals 8,361,678 17,751,931 69,135,977 1,282,395 1,037,191 Totals 12,105,990 19,075,602 71,663,232 1,368,957 1,112,806 b) Hedge accounting b.1) Fair value hedges The Bank uses interest rate derivatives to manage its structural risk by minimizing accounting asymmetries in the Statement of Financial Position. Through different hedging strategies, it redenominates an element originally at a fixed rate to a floating rate, thus decreasing the financial duration and consequently risk, aligning the balance sheet structure with expected movements in the yield curve. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued The following table presents the hedged items and the hedging instrument at fair value as of December 31, 2019 and 2018, detailed by maturity: As of December 31, 2019 Notional Between 1 Between 3 and Up to 1 year and 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Loans and accounts receivable from customers Commercial and mortgage loans 1,032 — — — 1,032 Mortgage loans (1) — 342,159 80,629 263,067 685,855 Financial instruments at FVTPL Treasury bonds — 52,704 49,932 25,458 128,094 Debt instruments issued Current bonds 28,310 98,310 80,620 1,007,834 1,215,074 Totals 29,342 493,173 211,181 1,296,359 2,030,055 Hedging instruments Currency forwards — — — — — Currency swaps — 47,463 — — 47,463 Interest rate swaps 29,342 445,428 211,181 1,296,359 1,982,310 Totals 29,342 492,891 211,181 1,296,359 2,029,773 (1) Colombia: The information includes the effects on the hedge item generated by prepayments, therefore, cash flows from the hedge item and the hedging instrument are not perfectly balanced. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Between 1 Between 3 and Up to 1 year and 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Loans and accounts receivable from customers Commercial and mortgage loans 1,232 156,772 261,860 289,724 709,588 Available for sale investments Treasury bonds 666,388 52,132 35,297 42,189 796,006 Debt instruments issued Current bonds 239,682 55,132 94,000 1,310,697 1,699,511 Totals 907,302 264,036 391,157 1,642,610 3,205,105 Hedging instruments Currency forwards — — — — — Currency swaps 187,578 — — — 187,578 Interest rate swaps 719,724 264,036 391,157 1,642,610 3,017,527 Totals 907,302 264,036 391,157 1,642,610 3,205,105 Below is an estimate of the periods in which flows are expected to be produced: Forecasted cash flows by interest rate risk: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows (1) 9,890 66,797 13,343 4,570 94,600 Outflows (45,795) (36,038) (129,595) (54,460) (265,888) Net Flows (35,905) 30,759 (116,252) (49,890) (171,288) Hedging instruments (*) Outflows (9,890) (66,515) (13,343) (4,570) (94,318) Inflows 45,795 36,038 129,595 54,460 265,888 Net flows 35,905 (30,477) 116,252 49,890 171,570 (1) Colombia: The information includes the effects on the hedge item generated by prepayments, therefore, cash flows from the hedge item and the hedging instrument are not perfectly balanced. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 9,678 17,366 15,632 7,728 50,404 Outflows (24,604) (37,185) (50,215) (70,615) (182,619) Net flows (14,926) (19,819) (34,583) (62,887) (132,215) Hedging instruments (*) Outflows (9,678) (17,366) (15,632) (7,728) (50,404) Inflows 24,604 37,185 50,215 70,615 182,619 Net flows 14,926 19,819 34,583 62,887 132,215 (*) Only includes cash flows forecast portion of the hedge instruments used to cover interest rate risk. b.2) Cash flow hedges: Cash flow hedge is used by the Bank mainly to: · Reduce the volatility of cash flows in items in the Statement of Financial position that are indexed to inflation through the use of inflation forwards and combinations of swaps in pesos and indexed units. · Set the rate of a portion of the pool of short-term liabilities in pesos, thus reducing the risk of an important part of the Bank’s cost of funding, although still maintaining the liquidity risk of the pool. This is achieved by setting the cash flows of the hedged items equal to those of the derivative instruments, modifying uncertain cash flows for certain cash flows. · It also sets the rate of funding sources at a floating rate, decreasing the risk that its funding costs increase. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued The following table presents the nominal values of the hedged item as of December 31, 2019 and 2018: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts at amortized cost Loans (inflation-indexed) 1,804,079 566,729 — — 2,370,808 Commercial loans (interest rate) 5,000 43,000 — — 48,000 Time deposits and other time liabilities Time deposits 27,408 — 342,633 41,300 411,341 Debt instruments issued Current bonds — — — — — Interbank borrowings Interbank loans 476,036 — 78,592 — 554,628 Forecast Transaction Payment in USD 42,979 — — — 42,979 Totals 2,355,502 609,729 421,225 41,300 3,427,756 Hedging instruments Currency forwards 2,275,939 556,633 — — 2,832,572 Currency swaps 47,155 — 78,592 — 125,747 Interest rate swaps 32,408 53,096 342,633 41,300 469,437 Totals 2,355,502 609,729 421,225 41,300 3,427,756 As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) 2,015,643 9,961 — — 2,025,604 Commercial loans (interest rate) — 28,000 20,000 — 48,000 Time deposits and other time liabilities Time deposits 129,100 52,027 — 46,698 227,825 Debt instruments issued Current bonds 173,683 — — — 173,683 Interbank borrowings Interbank loans 398,606 — 72,766 — 471,372 Totals 2,717,032 89,988 92,766 46,698 2,946,484 Hedging instruments Currency forwards 2,073,971 — — — 2,073,971 Currency swaps 444,488 — 72,766 — 517,254 Interest rate swaps 198,573 89,988 20,000 46,698 355,259 Totals 2,717,032 89,988 92,766 46,698 2,946,484 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued Below is an estimate of the periods in which flows are expected to occur. Forecasted cash flows by interest rate risk: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 43,430 23,797 — — 67,227 Outflows (484,997) (17,615) (13,260) (941) (516,813) Net Flows (441,567) 6,182 (13,260) (941) (449,586) Hedging instruments (*) Outflows (43,430) (23,797) — — (67,227) Inflows 484,997 17,615 13,260 941 516,813 Net flows 441,567 (6,182) 13,260 941 449,586 As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 1,848,702 169,442 521 — 2,018,665 Outflows (11,046) (3,797) (5,693) (2,837) (23,373) Net Flows 1,837,656 165,645 (5,172) (2,837) 1,995,292 Hedging instruments (*) Outflows (1,848,702) (169,442) (521) — (2,018,665) Inflows 11,046 3,797 5,693 2,837 23,373 Net flows (1,837,656) (165,645) 5,172 2,837 (1,995,292) (*) Only includes cash flows forecast portion of the hedge instruments used to cover interest rate risk. As of December 31, 2019 2018 Effective Ineffective Effective Ineffective portion portion portion portion MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) (3,698) (516) 13,963 2,032 Commercial loans (interest rate) 1,135 289 1,270 270 Time deposits and other time liabilities Time deposits (4,275) 91 (158) — Debt instruments issued Current bonds — — (3,829) (2,718) Interbank borrowings Interbank loans (3,019) (8) 43 — Forecast Transaction Payment in USD 3,065 — — — Totals (6,792) (144) 11,289 (416) Note 8 - Financial Derivative Contracts and Hedge Accounting, continued The effective portion generated by cash flow derivatives recorded in the Statement of Changes in Equity as of December 31, 2019 and 2018. The ineffective portion is recognized immediately in the Consolidated Statement of Income. This ineffectivess is generated because both the hedged item and the hedged object do not mirror each other, which means that changes in value attributable to rate and reset components are not fully offset, but remain within the effectiveness range defined by the standard. The income generated by cash flow hedge derivatives whose effect was transferred from Other Comprehensive Income to Income for the year, is as follow: As of December 31, 2019 2018 MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) — — Commercial loans (interest rate) — — Time deposits and other time liabilities Time deposits 200 Debt instruments issued Current bonds — — Interbank borrowings Interbank loans — — Forecast Transaction Payment in USD — — Totals 789 200 b.3) Hedge of net investment in foreign operations: Itaú Corpbanca, the parent company whose functional currency is the Chilean peso, has foreign business investments consisting of a branch in New York and subsidiaries in Colombia. As a result of the proper accounting treatment for these investments, fluctuations in the value of the investments as a result of changes in the Chilean peso-Colombian peso exchange rate alter the parent company’s equity. The objective of these hedges is to safeguard the value of equity by managing exchange rate risk affecting the investments. Hedges of a net investment in a foreign operation, including hedges of monetary items that are accounted for as part of a net investment, are recorded to cash flow hedges, where: · The portion of the gain or loss from the hedge instrument that is determined to be an effective hedge is recognized in equity. As of December 31, 2019, this was a credit of MCh$10,756 (debit of MCh$21,657 net of deferred taxes as of December 31, 2018). · The ineffective portion is recognized in profit or loss. No such amounts were recorded in 2019 and 2018. As of December 31, Notes 2019 2018 MCh$ MCh$ Opening balances 21,657 47,454 Gains (losses) on hedge of net investment in foreign operation, before tax 24 b. (46,786) (35,338) Income tax relating to hedges of net investment in foreign operations 24 b. 14,373 9,541 Ending balances (10,756) 21,657 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued Each hedge is detailed in the table below: Hedge of net investment As of December 31, 2019 Statements of Changes in Statement Notional Equity of Income Effective Between 1 and Between 3 and portion for the Ineffective Up to 1 year 3 years 6 years Over 6 years year portion MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Net investment in New York Branch 2,360,798 — — — (35,744) — Net investment Itaú Corpbanca Colombia 305,723 — — — (11,042) — Total 2,666,521 — — — (46,786) — Hedging instrument Foreign currency forwards 2,666,521 — — — (46,786) — As of December 31, 2018 Statements of Changes in Statement Notional Equity of Income Effective Between 1 and Between 3 and portion for the Ineffective Up to 1 year 3 years 6 years Over 6 years year portion MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Net investment in New York Branch 1,326,934 — — — (26,179) — Net investment Itaú Corpbanca Colombia 116,715 — — — (10,354) — Total 1,443,649 — — — (36,533) — Hedging instrument Foreign currency forwards 1,443,649 — — — (36,533) —

Interbank Loans

Interbank Loans	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Interbank Loans	Note 9 - a) As of December 31, 2019 and 2018, the balances presented under the item "Interbank loans, net" are as follow: As of December 31, 2019 2018 MCh$ MCh$ Local banks Loans to local banks — — Allowances for loans losses — — Subtotals — — Foreign banks Interbank cash loans 37,048 30,507 Loans to foreign banks 755 5,594 Non-transferable deposits with foreign banks 18,832 65,556 Allowances for loans losses (239) (463) Subtotals 56,396 101,194 Chilean Central Bank Deposits with the Chilean Central Bank not available (*) — 240,050 Subtotals — 240,050 Totals 56,396 341,244 (*) These are deposits that do not qualify as time deposits b) Interbank loans allowances 2019 2018 Stage 1 Stage 2 Stage 2 Stage 1 Stage 2 Stage 2 12-Month ECL Lifetime ECL Lifetime ECL Totals 12-Month ECL Lifetime ECL Lifetime ECL Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 463 — — 463 208 — — 208 Changes in the allowances - Transfer to stage 1 — — — — — — — — - Transfer to stage 2 — — — — — — — — - Transfer to stage 3 — — — — — — — — - Increases due to change in credit risk — — — — — — — — - Decreases due to change in credit risk — — — — — — — — - Charge-offs — — — — — — — — - Changes due to modifications that did not result in derecognition — — — — — — — — New financial assets originated or purchased 316 — — 316 344 — — 344 Financial assets that have been derecognized (574) — — (574) (131) — — (131) Changes in models/risk parameters — — — — — — — — Foreign exchange and other movements 34 — — 34 42 — — 42 Ending balances as of December 31, 239 — — 239 463 — — 463

Loans and Accounts Receivable f

Loans and Accounts Receivable from Customers	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Loans and Accounts Receivable from Customers	Note 10 - Loans and Accounts Receivable from Customers a) Loans and accounts receivable from customers As of December 31, 2019, the composition of the loan portfolio is as follows: Allowances for loan losses Individual Group As of December 31, 2019 Gross Assets allowances allowances Totals Net assets MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans: Commercial loans 12,288,810 193,135 224,925 418,060 11,870,750 Foreign trade loans 1,109,169 — 74,488 74,488 1,034,681 Checking account debtors 154,276 — 10,508 10,508 143,768 Factoring transactions 221,104 — 3,694 3,694 217,410 Student loans 654,721 — 19,442 19,442 635,279 Leasing transactions 1,005,209 — 16,302 16,302 988,907 Other commercial loans and receivables 27,255 — 2,705 2,705 24,550 Subtotals 15,460,544 193,135 352,064 545,199 14,915,345 Mortgage loans: Loans with mortgage finance bonds 30,269 — 378 378 29,891 Endorsable mutual mortgage loans 103,850 — 1,408 1,408 102,442 Other mutual mortgage loans 4,384,547 — 63,528 63,528 4,321,019 Mortgage leasing transactions 336,587 — 12,879 12,879 323,708 Other mortgage loans and receivables 20,788 — 308 308 20,480 Subtotals 4,876,041 — 78,501 78,501 4,797,540 Consumer loans: Installment consumer loans 2,005,038 — 193,726 193,726 1,811,312 Checking account debtors 206,738 — 20,106 20,106 186,632 Credit card balances 537,741 — 37,998 37,998 499,743 Consumer leasing transactions 3,113 — 227 227 2,886 Other consumer loans and receivables 45,599 — 4,360 4,360 41,239 Subtotals 2,798,229 — 256,417 256,417 2,541,812 Totals 23,134,814 193,135 686,982 880,117 22,254,697 Note 10 - Loans and Accounts Receivable from Customers, continued As of December 31, 2018, the composition of the loan portfolio is as follows: Allowances for loan losses Individual Group As of December 31, 2018 Gross Assets allowances allowances Totals Net assets MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans: Commercial loans 11,457,388 133,610 258,177 391,787 11,065,601 Foreign trade loans 928,443 — 7,964 7,964 920,479 Checking account debtors 131,100 — 6,801 6,801 124,299 Factoring transactions 210,567 — 9 9 210,558 Student loans 676,689 — 51,091 51,091 625,598 Leasing transactions 928,160 — 25,113 25,113 903,047 Other commercial loans and receivables 34,553 — 1,942 1,942 32,611 Subtotals 14,366,900 133,610 351,097 484,707 13,882,193 Mortgage loans: Loans with mortgage finance bonds 38,364 — 472 472 37,892 Endorsable mutual mortgage loans 118,668 — 8,016 8,016 110,652 Other mutual mortgage loans 3,953,245 — 52,138 52,138 3,901,107 Mortgage leasing transactions 312,118 — 4,395 4,395 307,723 Other mortgage loans and receivables 23,432 — 1,096 1,096 22,336 Subtotals 4,445,827 — 66,117 66,117 4,379,710 Consumer loans: Installment consumer loans 1,921,785 — 155,472 155,472 1,766,313 Checking account debtors 209,492 — 17,579 17,579 191,913 Credit card balances 481,567 — 38,426 38,426 443,141 Consumer leasing transactions 6,203 — 476 476 5,727 Other consumer loans and receivables 50,716 — 5,343 5,343 45,373 Subtotals 2,669,763 — 217,296 217,296 2,452,467 Totals 21,482,490 133,610 634,510 768,120 20,714,370 Guarantees taken by the Bank to secure collections of rights reflected in its loan portfolios are real mortgage-type guarantees (urban and rural property, farm land, ships and aircraft, mining claims and other assets) and pledges (inventory, farm assets, industrial assets, plantings and other pledged assets). As of December 31, 2019 and 2018, the fair value of guarantees taken corresponds to 135.51% and 136.48% of the assets covered, respectively. In the case of mortgage guarantees, as of December 31, 2019 and 2018, the fair value of the guarantees taken corresponds to 89.87% and 90.10% of the balance receivable on loans, respectively. The Bank finances its customers’ purchases of assets, including real estate and other personal property, through finance lease agreements that are presented within this item. As of December 31, 2019, the Bank recorded MCh$ 628,823 in finance leases for property (MCh$436,654 as of December 31, 2018) and MCh$ 716,401 in finance leases for real estate property (MCh$809,826 as of December 31, 2018). Note 10 - Loans and Accounts Receivable from Customers, continued The following tables present the movements for the total loan portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2019 and 2018: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Loan portfolio Opening balances as of January 1, 2019 — 367,611 140,943 508,554 17,697,774 2,532,128 744,034 20,973,936 21,482,490 Changes in the allowances — — - Transfer to stage 1 — — — — 392,454 (371,983) (20,471) — — - Transfer to stage 2 — — — — (749,463) 816,577 (67,114) — — - Transfer to stage 3 — (116,202) 116,202 — (113,903) (192,565) 306,468 — — -Charge-off — — (21,841) (21,841) (13,979) (22,862) (114,590) (151,431) (173,272) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 55,367 32,129 87,496 6,487,407 583,765 184,664 7,255,836 7,343,332 Financial assets that have been derecognized — (46,681) (11,754) (58,435) (5,024,522) (771,046) (201,451) (5,997,019) (6,055,454) Net transfer from (to) group assessed 20,807 25,659 — 46,466 (20,807) (25,659) — (46,466) — Foreign exchange and other movements — 35,734 12,532 48,266 36,154 315,844 137,454 489,452 537,718 Ending balances as of December 31, 2019 20,807 321,488 268,211 610,506 18,691,115 2,864,199 968,994 22,524,308 23,134,814 Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Loan portfolio Opening balances as of January 1, 2018 39,213 307,702 22,132 369,047 15,227,713 3,540,274 1,245,571 20,013,558 20,382,605 Changes in the allowances — — - Transfer to stage 1 — — — — 465,545 (453,418) (12,127) — — - Transfer to stage 2 (39,213) 39,213 — — (624,014) 684,868 (60,854) — — - Transfer to stage 3 — — — — (63,263) (138,912) 202,175 — — -Charge-off — — — — (13,837) (26,525) (105,451) (145,813) (145,813) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 69,356 41,626 110,982 5,530,053 501,380 186,025 6,217,458 6,328,440 Financial assets that have been derecognized — (8,129) — (8,129) (4,221,649) (871,600) (212,737) (5,305,986) (5,314,115) Net transfer from (to) group assessed — — — — — — — — — Foreign exchange and other movements — (40,531) 77,185 36,654 1,397,226 (703,939) (498,568) 194,719 231,373 Ending balances as of December 31, 2018 — 367,611 140,943 508,554 17,697,774 2,532,128 744,034 20,973,936 21,482,490 Note 10 - Loans and Accounts Receivable from Customers, continued The following table presents the movements for the Commercial loans portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2019: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 367,611 140,943 508,554 11,935,270 1,428,951 494,125 13,858,346 14,366,900 Changes in the allowances - Transfer to stage 1 — — — — 158,836 (145,228) (13,608) — — - Transfer to stage 2 — — — — (430,358) 454,203 (23,845) — — - Transfer to stage 3 — (116,202) 116,202 — (85,689) (113,481) 199,170 — — -Charge-off — — (21,841) (21,841) (654) (1,314) (74,877) (76,845) (98,686) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 55,367 32,129 87,496 4,901,848 341,720 115,347 5,358,915 5,446,411 Financial assets that have been derecognized — (46,681) (11,754) (58,435) (4,049,247) (506,777) (149,445) (4,705,469) (4,763,904) Net transfer from (to) group assessed 20,807 25,659 — 46,466 (20,807) (25,659) — (46,466) — Foreign exchange and other movements — 35,733 12,533 48,266 36,212 293,402 131,943 461,557 509,823 Ending balances as of December 31, 2019 20,807 321,487 268,212 610,506 12,445,411 1,725,817 678,810 14,850,038 15,460,544 The following table presents the movements for the Commercial loans portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2018: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 39,213 307,702 22,132 369,047 10,143,732 2,252,265 951,502 13,347,499 13,716,546 Changes in the allowances - Transfer to stage 1 — — — — 252,306 (245,768) (6,538) — — - Transfer to stage 2 (39,213) 39,213 — — (297,179) 319,361 (22,182) — — - Transfer to stage 3 — — — — (38,989) (70,966) 109,955 — — -Charge-off — — — — (248) (2,739) (68,752) (71,739) (71,739) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 69,356 41,626 110,982 4,181,172 271,747 131,865 4,584,784 4,695,766 Financial assets that have been derecognized — (8,129) — (8,129) (3,359,810) (638,568) (172,661) (4,171,039) (4,179,168) Net transfer from (to) group assessed — — — — — — Foreign exchange and other movements — (40,531) 77,185 36,654 1,054,286 (456,381) (429,064) 168,841 205,495 Ending balances as of December 31, 2018 — 367,611 140,943 508,554 11,935,270 1,428,951 494,125 13,858,346 14,366,900 Note 10 - Loans and Accounts Receivable from Customers, continued The following table presents the movements of the Mortgage loans portfolio for the year ended December 31, 2019: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2019 3,626,811 659,119 159,897 4,445,827 Changes in the allowances - Transfer to stage 1 112,611 (112,195) (416) — - Transfer to stage 2 (174,723) 210,287 (35,564) — - Transfer to stage 3 (12,815) (64,770) 77,585 — -Charge-off (36) (115) (12,230) (12,381) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 763,342 17,230 2,298 782,870 Financial assets that have been derecognized (330,014) (62,240) (20,063) (412,317) Foreign exchange and other movements 58,589 8,694 4,759 72,042 Ending balances as of December 31, 2019 4,043,765 656,010 176,266 4,876,041 The following table presents the movements of the Mortgage loans portfolio for the year ended December 31, 2018: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2018 3,273,643 702,101 177,009 4,152,753 Changes in the allowances - Transfer to stage 1 104,374 (103,260) (1,114) — - Transfer to stage 2 (189,936) 223,677 (33,741) — - Transfer to stage 3 (12,797) (57,063) 69,860 — -Charge-off — (3) (8,697) (8,700) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 589,959 17,008 2,417 609,384 Financial assets that have been derecognized (302,784) (62,366) (18,533) (383,683) Foreign exchange and other movements 164,352 (60,975) (27,304) 76,073 Ending balances as of December 31, 2018 3,626,811 659,119 159,897 4,445,827 Note 10 - Loans and Accounts Receivable from Customers, continued The following table presents the movements of the Consumer loans portfolio for the year ended December 31, 2019: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2019 2,135,693 444,058 90,012 2,669,763 Changes in the allowances - Transfer to stage 1 121,007 (114,560) (6,447) — - Transfer to stage 2 (144,382) 152,087 (7,705) — - Transfer to stage 3 (15,399) (14,314) 29,713 — -Charge-off (13,289) (21,433) (27,483) (62,205) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 822,217 224,815 67,019 1,114,051 Financial assets that have been derecognized (645,261) (202,029) (31,943) (879,233) Foreign exchange and other movements (58,647) 13,748 752 (44,147) Ending balances as of December 31, 2019 2,201,939 482,372 113,918 2,798,229 The following table presents the movements of the Consumer loans portfolio for the year ended December 31, 2018: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2018 1,810,338 585,908 117,060 2,513,306 Changes in the allowances - Transfer to stage 1 108,865 (104,390) (4,475) — - Transfer to stage 2 (136,899) 141,830 (4,931) — - Transfer to stage 3 (11,477) (10,883) 22,360 — -Charge-off (13,589) (23,783) (28,002) (65,374) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 758,922 212,625 51,743 1,023,290 Financial assets that have been derecognized (559,055) (170,666) (21,543) (751,264) Foreign exchange and other movements 178,588 (186,583) (42,200) (50,195) Ending balances as of December 31, 2018 2,135,693 444,058 90,012 2,669,763 Note 10 - Loans and Accounts Receivable from Customers, continued b) Portfolio characteristics As of December 31, 2019 and 2018, the loan portfolio before allowances for loan losses by customer economic activity was as follows: As of December 31, 2019 Local loans Foreign loans Totals Distribution percentage MCh$ MCh$ MCh$ % Commercial loans Manufacturing 988,739 111,000 1,099,739 Mining 292,263 259,352 551,615 Electricity, gas and water 685,749 439,792 1,125,541 Agriculture and livestock 309,648 174,295 483,943 Forestry and wood extraction 48,192 5,136 53,328 Fishing 42,397 4,505 46,902 Transport 478,737 80,534 559,271 Communications 25,209 9,717 34,926 Construction 1,757,874 348,955 2,106,829 Commerce 1,439,969 689,210 2,129,179 Services 2,864,307 1,080,264 3,944,571 Others 2,275,275 1,049,425 3,324,700 Subtotals 11,208,359 4,252,185 15,460,544 Mortgage loans 4,211,094 664,947 4,876,041 Consumer loans 1,923,745 874,484 2,798,229 Total 17,343,198 5,791,616 23,134,814 As of December 31, 2018 Local loans Foreign loans Totals Distribution percentage MCh$ MCh$ MCh$ % Commercial loans Manufacturing 982,497 114,714 1,097,211 5.11 % Mining 424,883 252,894 677,777 3.16 % Electricity, gas and water 600,667 356,706 957,373 4.46 % Agriculture and livestock 207,271 139,098 346,369 1.61 % Forestry and wood extraction 24,511 5,172 29,683 0.14 % Fishing 1,945 1,530 3,475 0.02 % Transport 509,354 191,047 700,401 3.26 % Communications 23,886 62,191 86,077 0.40 % Construction 1,436,096 310,530 1,746,626 8.13 % Commerce 861,291 758,817 1,620,108 7.54 % Services 2,735,023 1,137,037 3,872,060 18.02 % Others 2,436,337 793,403 3,229,740 15.03 % Subtotals 10,243,761 4,123,139 14,366,900 66.88 % Mortgage loans 3,852,962 592,865 4,445,827 20.70 % Consumer loans 1,750,986 918,777 2,669,763 12.43 % Total 15,847,709 5,634,781 21,482,490 100 % Note 10 - Loans and Accounts Receivable from Customers, continued c) Allowances for loans losses Movements in allowances for loan losses during the year ended December 31, 2019 and 2018, under IFRS 9, detailed as follows: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 46,153 87,457 133,610 138,492 232,447 263,571 634,510 768,120 Changes in the allowances -Net transfer to stage 1 — — — — 29,418 (23,245) (6,173) — — -Net transfer to stage 2 — — — — (14,077) 28,023 (13,946) — — -Net transfer to stage 3 — (22,642) 22,642 — (5,171) (29,876) 35,047 — — - Increases due to change in credit risk — 1,216 62,685 63,901 19,691 80,613 105,143 205,447 269,348 - Decreases due to change in credit risk — (7,758) (1,096) (8,854) (51,409) (39,540) (11,452) (102,401) (111,255) - Charge-Offs — — (13,891) (13,891) (983) (7,631) (144,859) (153,473) (167,364) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 12,496 7,376 19,872 73,009 91,324 98,595 262,928 282,800 Financial assets that have been derecognized — (1,824) (3,152) (4,976) (49,158) (62,668) (82,517) (194,343) (199,319) Net transfer from (to) group assessed — 933 — 933 — (933) — (933) — Foreign exchange and other movements — 13,426 (10,886) 2,540 5,603 (8,217) 37,861 35,247 37,787 Ending balances as of December 31, 2019 — 42,000 151,135 193,135 145,415 260,297 281,270 686,982 880,117 Note 10 - Loans and Accounts Receivable from Customers, continued Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 — 49,389 32,736 82,125 126,230 248,129 284,089 658,448 740,573 Changes in the allowances -Net transfer to stage 1 — — — — — 36,325 41,471 77,796 77,796 -Net transfer to stage 2 — — — — (5,233) — 49,097 43,864 43,864 -Net transfer to stage 3 — — — — (4,354) (22,811) — (27,165) (27,165) - Increases due to change in credit risk — 3,732 16,587 20,319 18,307 18,459 28,670 65,436 85,755 - Decreases due to change in credit risk — (532) (1,706) (2,238) (23,460) (27,162) (9,105) (59,727) (61,965) - Charge-Offs — — — — (21,316) (18,559) (95,091) (134,966) (134,966) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 6,428 17,037 23,465 66,074 54,568 77,069 197,711 221,176 Financial assets that have been derecognized — (20,636) (15,355) (35,991) (19,950) (58,405) (78,728) (157,083) (193,074) Net transfer from (to) group assessed — 7,772 38,158 45,930 138 (1,761) (38,158) (39,781) 6,149 Foreign exchange and other movements — — — — 2,056 3,664 4,257 9,977 9,977 Ending balances as of December 31, 2018 — 46,153 87,457 133,610 138,492 232,447 263,571 634,510 768,120 The detail by type of portfolio (commercial, mortgage and consumer) is as follow: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime Commercial ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 46,153 87,457 133,610 61,971 109,805 179,321 351,097 484,707 Changes in the allowances -Net transfer to stage 1 — — — — 9,243 (7,555) (1,688) — — -Net transfer to stage 2 — — — — (6,626) 10,260 (3,634) — — -Net transfer to stage 3 — (22,642) 22,642 — (1,927) (11,340) 13,267 — — - Increases due to change in credit risk — 1,216 62,685 63,901 13,071 32,280 46,212 91,563 155,464 - Decreases due to change in credit risk — (7,758) (1,096) (8,854) (18,572) (19,449) (8,373) (46,394) (55,248) - Charge-Offs — — (13,891) (13,891) (28) (179) (68,119) (68,326) (82,217) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 12,496 7,376 19,872 36,672 35,008 45,007 116,687 136,559 Financial assets that have been derecognized — (1,824) (3,152) (4,976) (23,152) (28,514) (58,013) (109,679) (114,655) Net transfer from (to) group assessed — 933 — 933 — (933) — (933) — Foreign exchange and other movements — 13,426 (10,886) 2,540 2,384 (9,712) 25,377 18,049 20,589 Ending balances as of December 31, 2019 — 42,000 151,135 193,135 73,036 109,671 169,357 352,064 545,199 Note 10 - Loans and Accounts Receivable from Customers, continued Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime Commercial ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 — 49,389 32,736 82,125 63,093 131,854 211,463 406,410 488,535 Changes in the allowances -Net transfer to stage 1 — — — — — 14,148 24,174 38,322 38,322 -Net transfer to stage 2 — — — — (1,047) — 39,461 38,414 38,414 -Net transfer to stage 3 — — — — (3,426) (18,176) — (21,602) (24,602) - Increases due to change in credit risk — 3,732 16,587 20,319 8,594 6,716 12,823 28,133 48,452 - Decreases due to change in credit risk — (532) (1,706) (2,238) (12,651) (10,713) (8,321) (31,685) (33,923) - Charge-Offs — — — — (10,983) (7,447) (57,566) (75,996) (75,996) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 6,428 17,037 23,465 27,419 16,594 42,544 86,557 110,022 Financial assets that have been derecognized — (20,636) (15,355) (35,991) (10,395) (23,782) (50,516) (84,693) (120,684) Net transfer from (to) group assessed — 7,772 38,158 45,930 138 (1,761) (38,158) (39,781) 6,149 Foreign exchange and other movements — — — — 1,229 2,372 3,417 7,018 7,018 Ending balances as of December 31, 2018 — 46,153 87,457 133,610 61,971 109,805 179,321 351,097 484,707 Note 10 - Loans and Accounts Receivable from Customers, continued Group assessed Stage 1 Stage 2 Stage 3 Mortgage 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2019 5,756 37,800 22,561 66,117 66,117 Changes in the allowances - Transfer to stage 1 3,316 (2,901) (415) — — - Transfer to stage 2 (484) 5,430 (4,946) — — - Transfer to stage 3 (244) (7,413) 7,657 — — - Increases due to change in credit risk 530 25,837 5,502 31,869 31,869 - Decreases due to change in credit risk (4,200) (8,916) (2,564) (15,680) (15,680) - Write-Offs — (16) (2,624) (2,640) (2,640) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 1,347 1,622 512 3,481 3,481 Financial assets that have been derecognized (605) (2,553) (2,343) (5,501) (5,501) Changes in models/risk parameters — — — — — Foreign exchange and other movements 264 182 409 855 855 Ending balances as of December 31, 2019 5,680 49,072 23,749 78,501 78,501 Group assessed Stage 1 Stage 2 Stage 3 Mortgage 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2018 3,962 37,460 19,049 60,471 60,471 Changes in the allowances - Transfer to stage 1 — 5,344 2,644 7,988 7,988 - Transfer to stage 2 (206) — 4,253 4,047 4,047 - Transfer to stage 3 (73) (2,918) — (2,991) (2,991) - Increases due to change in credit risk 1,203 5,921 1,619 8,743 8,743 - Decreases due to change in credit risk (394) (7,002) (321) (7,717) (7,717) - Write-Offs — (13) (2,491) (2,504) (2,504) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 1,639 1,577 405 3,621 3,621 Financial assets that have been derecognized (399) (2,792) (271) (5,901) (5,901) Changes in models/risk parameters — — — — — Foreign exchange and other movements 24 223 113 360 360 Ending balances as of December 31, 2018 5,756 37,800 22,561 66,117 66,117 Note 10 - Loans and Accounts Receivable from Customers, continued Group assessed Stage 1 Stage 2 Stage 3 Consumer 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2019 70,765 84,842 61,689 217,296 217,296 Changes in the allowances - Transfer to stage 1 16,859 (12,789) (4,070) — — - Transfer to stage 2 (6,968) 12,334 (5,366) — — - Transfer to stage 3 (3,000) (11,123) 14,123 — — - Increases due to change in credit risk 6,090 34,493 53,429 94,012 94,012 - Decreases due to change in credit risk (28,637) (11,175) (515) (40,327) (40,327) - Write-Offs (955) (7,436) (74,116) (82,507) (82,507) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 34,990 54,694 53,076 142,760 142,760 Financial assets that have been derecognized (25,401) (31,601) (22,161) (79,163) (79,163) Changes in models/risk parameters — — — — — Foreign exchange and other movements 2,949 1,268 129 4,346 4,346 Ending balances as of December 31, 2019 66,692 113,507 76,218 256,417 256,417 Group assessed Stage 1 Stage 2 Stage 3 Consumer 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2018 59,175 78,815 53,577 191,567 191,567 Changes in the allowances - Transfer to stage 1 — 16,833 14,653 31,486 31,486 - Transfer to stage 2 (3,980) — 5,383 1,403 1,403 - Transfer to stage 3 (855) (1,717) — (2,572) (2,572) - Increases due to change in credit risk 8,510 5,822 14,228 28,560 28,560 - Decreases due to change in credit risk (10,415) (9,447) (463) (20,325) (20,325) - Write-Offs (10,333) (11,099) (35,034) (56,466) (56,466) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 37,016 36,397 34,120 107,533 107,533 Financial assets that have been derecognized (9,156) (31,831) (25,502) (66,489) (66,489) Changes in models/risk parameters — — — — Foreign exchange and other movements 803 1,069 727 2,599 2,599 Ending balances as of December 31, 2018 70,765 84,842 61,689 217,296 217,296 Note 10 - Loans and Accounts Receivable from Customers, continued d) Portfolio sales As of December 31, 2019 and 2018, the Bank and its subsidiaries engaged in portfolio purchases and sales. The effect on result of these transactions amounts to MCh$14,588 as of December 31, 2019 (MCh$1,602 as of December 31, 2018), is recorded within net gains from trading and investment income activities in the consolidated statement of income for the year, disclosed in Note 25 “Net income (expense) from financial operations” within “Sale of loans and accounts receivable from customers”. d.1) Current and charged-off portfolios sales As of December 31, 2019 and 2018, the Bank and its subsidiaries derecognized 100% of its sold portfolio, thus complying with the requirements of the accounting policy for derecognizing financial assets and liabilities in Note 1, letter l), point iv) of the annual Consolidated Financial Statements. The main sales during 2019 and 2018 were of loans related to Law 20,027, which are detailed in point d.2). For the year ended December 31, 2019 For the year ended December 31, 2018 Adjustment Net effect on Adjustment Net effect on Portfolio Loan Value Allowances Sale price to EIR income Loan Value Allowances Sale price to EIR income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Currents 14,231 (14,113) 4,130 (207) 3,805 62,261 24,797 24,662 — (12,802) Charged-offs — — 2,199 — 2,199 — — 1,132 — 1,132 Totales 14,231 (14,113) 6,329 (207) 6,004 62,261 24,797 25,794 — (11,670) d.2) CAE portfolio sale For the year ended December 31, 2019, a gain was recognized amounting to MCh$8,584 (MCh$13,272 for the year ended December 31, 2018) corresponding to the income generated in the sale included directly in the Consolidated Statement of Income under “Net income from financial operations”. An adjustment to the effective interest rate for MCh$9,079 as of December 31, 2019 (MCh$11,768 as of December 31, 2018) is allocated to the portion of the CAE portfolio that was classified as loans at amortized cost, recognizing an effective interest rate equivalent for all these operations, according to IFRS 9. Al 31 de diciembre de 2019 Al 31 de diciembre de 2018 Adjustment Net effect on Adjustment Net effect on Portfolio Loan Value Allowances Sale price to EIR income Loan Value Allowances Sale price to EIR income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ CAE 103,201 (849) 120,015 9,079 8,584 95,521 (119) 120,442 11,768 13,272 Note 10 - Loans and Accounts Receivable from Customers, continued e) Lease As of December 31, 2019 and 2018, the Bank’s scheduled cash flows to be received from finance lease contracts have the following maturities: Total receivable Unearned income Net lease receivable As of December 31, As of December 31, As of December 31, 2019 2018 2019 2018 2019 2018 MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Up to one month 13,793 29,177 7 1,310 13,786 27,867 More than 1 month to 3 months 4,033 31,278 54 2,636 3,979 28,642 More than 3 months up to 1 year 39,184 116,526 1,839 10,621 37,345 105,905 More than 1 year up to 3 years 263,280 257,976 23,286 31,491 239,994 226,485 More than 3 years up to 6 years 413,066 28,492 71,543 54,922 341,523 229,998 More than 6 years 1,172,198 1,077,447 463,916 449,864 708,282 627,584 Totals 1,905,554 1,797,324 560,645 550,844 1,344,909 1,246,481 As of December 31, Leasing transactions 2019 2018 MCh$ MCh$ Commercial 1,005,209 928,160 Mortgage 336,587 312,118 Consumer 3,113 6,203 Totals 1,344,909 1,246,481

Investment instruments

Investment instruments	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Investment instruments	Note 11 – Investment instruments a) Investment instruments at fair value through other comprehensive income and at amortized cost As of December 31, 2019 and 2018, the detail of financial instruments measured at FVOCI and at amortized cost is as follows: As of December 31, 2019 As of December 31, 2018 At FVOCI At amortized cost Totals At FVOCI At amortized cost Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Debt instruments 3,588,214 115,658 3,703,872 2,644,797 198,923 2,843,720 Equity instruments 10,676 — 10,676 12,357 — 12,357 Totals 3,598,890 115,658 3,714,548 2,657,154 198,923 2,856,077 b) Debt instruments at fair value through other comprehensive income and at amortized cost As of December 31, 2019 and 2018, the detail of financial instruments measured at FVOCI and at amortized cost is as follows: As of December 31, 2019 As of December 31, 2018 At FVOCI At amortized cost Totals At FVOCI At amortized cost Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities quoted in active markets Chilean Central Bank and Government securities Chilean Central Bank instruments 477,900 — 477,900 411,431 — 411,431 Chilean Treasury bonds 1,609,397 — 1,609,397 913,041 — 913,041 Other goverment securities 86,981 — 86,981 27,612 — 27,612 Other local institutions financial instruments — Time deposits in local banks 412,962 — 412,962 185,501 — 185,501 Mortgage finance bonds 41 — 41 50 — 50 Chilean financial institutions bonds 118,583 — 118,583 — — — Other local financial investments — — — — — — Foreign institutions financial instruments — Foreign Governments and Central Banks financial instruments 165,927 — 165,927 769,693 198,923 968,616 Other foreign financial instruments 716,423 115,658 832,081 332,560 — 332,560 Investments not quoted in active markets — Corporate bonds — — — 4,909 — 4,909 Totals 3,588,214 115,658 3,703,872 2,644,797 198,923 2,843,720 As of December 31, 2019 this total includes MCh$266,779, included in Note 5 “Cash and cash equivalents,” which corresponds to those financial instruments with maturities that do not exceed three months from their dates of acquisition. As of December 31, 2019, the portfolio at FVTOCI includes an unrealized gain of MCh$46,033, presented in Equity as valuation accounts, distributed among a gain of MCh$38,818 attributable to equity holders and a gain of MCh$7,215 attributable to non-controlling interest. Note 11 – Investment instruments, continued c) Impairment of debt instruments at fair value through other comprehensive income and at amortized cost As of December 31, 2019 and 2018 the portfolios of debt securities classified as investment instruments at fair value through other comprehensive income includes impairment movements as summarized below: Financial instruments at FVOCI Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2019 134 — — 134 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-Offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 2,195 — — 2,195 Financial assets that have been derecognized (19) — — (19) Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2019 2,310 — — 2,310 Financial instruments at FVOCI Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2018 520 — — 520 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-Offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 25 — — 25 Financial assets that have been derecognized (411) — — (411) Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2018 134 — — 134 Note 11 – Investment instruments, continued As of December 31, 2019 and 2018 the portfolios of investment instruments at amortized cost includes impairment movements as summarized below: Financial instruments at Amortized cost Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2019 (13) — — (13) Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 24 — — 24 Financial assets that have been derecognized 13 — — 13 Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2019 24 — — 24 Financial instruments at Amortized cost Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2018 37 — — 37 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk (50) — — (50) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased — — — — Financial assets that have been derecognized — — — — Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2018 (13) — — (13) Note 11 – Investment instruments, continued d) Unrealized gains and losses of the portfolio at FVTOCI Unrealized gains and losses of the FVTOCI portfolio as of December 31, 2019 and 2018 are detailed as follows: As of December 31, 2019 As of December 31, 2018 Acquisition Unrealized Fair Acquisition Unrealized Fair cost Gain Losses value cost Gain Losses value Securities quoted in active markets Chilean Central Bank and Government securities Chilean Central Bank instruments 477,127 2,023 (1,250) 477,900 411,223 533 (325) 411,431 Chilean Treasury bonds 1,593,550 19,865 (4,018) 1,609,397 911,596 2,458 (1,013) 913,041 Other government securities 86,454 626 (99) 86,981 28,131 — (519) 27,612 Other local institutions financial instruments Time deposits in local banks 412,936 85 (59) 412,962 185,468 70 (37) 185,501 Mortgage finance bonds 40 1 — 41 50 — — 50 Chilean financial institutions bonds 117,641 1,008 (66) 118,583 — — — — Foreign institutions financial instruments Foreign Governments and Central Banks financial instruments 160,481 5,520 (74) 165,927 752,791 24,505 (7,603) 769,693 Other foreign financial instruments 697,663 18,965 (205) 716,423 329,196 5,741 (2,377) 332,560 Investments not quoted in active markets Corporate bonds — — — — 4,924 5 (20) 4,909 Equity instruments Unlisted securities 6,965 3,711 — 10,676 8,325 4,032 — 12,357 Totals 3,552,857 51,804 (5,771) 3,598,890 2,631,704 37,344 (11,894) 2,657,154 e) Equity instruments at fair value through other comprehensive income As of December 31, 2019 and 2018 the portfolio of equity investment instruments at fair value through comprehensive income are detail as follows: 2019 2018 Unlisted securities MCh$ MCh$ Domestic entities Stock Exchanges 4,990 5,979 Foreign entities A.C.H Colombia 989 799 Redeban Multicolor S.A. 634 539 Cámara de Compensación Divisas de Col. S.A. 270 229 Cámara de Riesgo Central de Contraparte S.A. 160 132 Servibanca - Tecnibanca (*) — 1,818 Bolsa de Valores de Colombia 781 466 Credibanco 2,831 2,378 Others 21 17 Totals 10,676 12,357 (*) In February 2019, 100% of the shares in the company were sold at fair value, thus no income or loss was generated in this transaction. This sale responded to a change in the business strategy where a holding in this company was no longer required in order to operate with it and to invest proceeds from sale in other activities in order to create greater value to the Bank’s shareholders. Note 11 – Investment instruments, continued Amounts recognized in profit and loss and other comprehensive income For the years ended December 31, 2019 and 2018, the following gains and losses were recognized in profit or loss and other comprehensive income: 2019 2018 MCh$ MCh$ Dividends from equity investments held at FVOCI recognized in profit or loss 904 1,241 Related to investments derecognized during the period 35,489 13,765 Related to investments held at the end of the reporting period — — Totals 35,489 13,765

Investment in Associates

Investment in Associates	12 Months Ended
	Dec. 31, 2019
Investments in Associates.
Investments in Associates	Note 12 – Investments in Associates In 2019, the Bank gained significant influence over Nexus S.A. and Transbank S.A. Management concluded that, by the election of one of the Board members for each one on these entities, in addition to other factors, such as material transactions between the Bank and these entities, exchange of essential technical information with its investees, etc., the Bank has the power to participate in the financial and operating policy decisions of these investees, but does not control them. Consequently, the equity method has been applied. a) As of December 31, 2019, investments in associates are as follows: Investment Entity's share as of December 31, Investment amount Income as of December 31 Entity 2019 2019 2019 % MM$ MM$ Nexus S.A (*) 12.90 % 2,281 (133) Transbank S.A (*) 8.72 % 7,324 665 Totals 9,605 532 (*) This investments were previously classified as “Financial instruments at fair value through profit or loss” and classified as associates since significant influence was gained. Acquisition cost is deemed to be equivalent to the fair value of each investment as of the date in which it became an associate. b) Summarized financial information of associates as of December 31, 2019: As of December 31 2019 Assets Liabilities Equity Income MCh$ MCh$ MCh$ MCh$ Nexus S.A 31,147 13,472 4,097 13,578 Transbank S.A 1,217,448 1,134,781 69,265 13,402 Totals 1,248,595 1,148,253 73,362 26,980 c) During the year ended December 31, 2019, the Bank received dividends from its associates, as detailed below: 2019 MCh$ Dividends received (**) 268 Totals 268 (**) Dividends are considered as received before significant influence was obtained, thus are presented under “Net income from financial operations” in the Consolidated Statement of Income in accordance with the previous classification and measurement as financial instruments at fair value through profit and loss according with IFRS 9. Note 12 – Investments in Associates, continued d) Investment in associates movements for the year ended December 31, 2019 are as follow: 2019 MCh$ Opening balance as of January 1, 2019 — Investment acquisition — Sale of investments — Initial application of equity method (**) 9,073 Participation in income 532 Ending balance as of December 31, 2019 9,605 (**) As indicated in a) above “significant influence” was gained in 2019, thus the equity method was initially applied this year.

Intangible assets

Intangible assets	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Intangible assets	Note 13 - Intangible assets a) Composition of intangibles assets as of December 31, 2019 and 2018 is as follows: Remaining Net assets as Net assets as Useful amortization of January 1, Gross Accumulated of December Concept life years years 2019 balance amortization 31, 2019 MCh$ MCh$ MCh$ MCh$ Computer equipment system or software 6 3 151,840 314,200 (134,457) 179,743 IT projects and licenses 6 2 12,614 33,352 (28,160) 5,192 Assets generated in business combination 1,406,016 1,544,767 (156,465) 1,388,302 Goodwill — — 1,135,392 1,151,019 — 1,151,019 Trademarks 10 8 37,002 51,459 (19,561) 31,898 Customer relationship 12 10 69,259 98,268 (34,951) 63,317 Core deposits 9 7 164,363 244,021 (101,953) 142,068 Other projects 10 1 494 4,055 (2,859) 1,196 Totals 1,570,964 1,896,374 (321,941) 1,574,433 Remaining Net assets as Net assets as Useful amortization of January 1, Gross Accumulated of December Concept life years years 2018 balance amortization 31, 2018 MCh$ MCh$ MCh$ MCh$ Computer equipment system or software 6 3 113,355 263,179 (111,339) 151,840 IT projects and licenses 6 2 16,663 42,601 (29,987) 12,614 Assets generated in business combination 1,431,990 1,518,599 (112,583) 1,406,016 Goodwill — — 1,126,663 1,135,392 — 1,135,392 Trademarks 10 8 42,106 51,432 (14,430) 37,002 Customer relationship 12 10 76,038 93,591 (24,332) 69,259 Core deposits 9 7 187,183 238,184 (73,821) 164,363 Other projects 10 1 646 3,645 (3,151) 494 Totals 1,562,654 1,828,024 (257,060) 1,570,964 b) Movements on gross balances of intangible assets as of December 31, 2019 and 2018 are as follows: Computer Assets equipment generated in system or IT projects business software and licenses combination Goodwill Other projects Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2019 263,179 42,601 383,207 1,135,392 3,645 1,828,024 Acquisitions 53,140 80 — — — 53,220 Exchange differences 5,308 20 12,876 15,627 — 33,831 Others (7,427) (9,349) (2,335) — 410 (18,701) Balances as of December 31, 2019 314,200 33,352 393,748 1,151,019 4,055 1,896,374 Note 13 - Intangible assets, continued Computer Assets equipment generated in system or IT projects business software and licenses combination Goodwill Other projects Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 203,080 42,474 375,952 1,126,663 3,645 1,751,814 Acquisitions 58,085 111 — — — 58,196 Disposals (147) — — — — (147) Exchange differences 2,161 16 7,255 8,729 — 18,161 Balances as of December 31, 2018 263,179 42,601 383,207 1,135,392 3,645 1,828,024 c) Movements on accumulated amortization of intangible assets for the years ended December 31, 2019 and 2018 are as follows: Computer Assets equipment generated in system or IT projects business software and licenses combination Other projects Totals MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2019 (111,339) (29,987) (112,583) (3,151) (257,060) Amortization for the year (30,363) (2,809) (40,816) (152) (74,140) Disposals 3 — — — 3 Exchange differences (2,995) (14) (4,648) — (7,657) Others 10,237 4,650 1,582 444 16,913 Balances as of December 31, 2019 (134,457) (28,160) (156,465) (2,859) (321,941) Computer Assets equipment generated in system or IT projects business software and licenses combination Other projects Totals MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 (89,725) (25,811) (70,625) (2,999) (189,160) Amortization for the year (20,868) (4,164) (40,976) (150) (66,158) Exchange differences (746) (12) (982) (2) (1,742) Balances as of December 31, 2018 (111,339) (29,987) (112,583) (3,151) (257,060) Note 13 - Intangible assets, continued d) Impairment Itaú Corpbanca evaluates, at the end of each reporting period, whether there is any indication of impairment of any asset (including Goodwill). If this indication exists, or when an impairment test is required, the Bank estimates the recoverable amount of the asset. As of December 31, 2019 and 2018 there is no indication nor concrete evidence of impairment (see details in note 30). As of the date of these Consolidated Financial Statements, there have been no events that require the recognition of impairment. e) Restrictions Itaú Corpbanca and its subsidiaries have no restrictions on intangible assets as of December 31, 2019 and 2018. In addition, no intangible assets have been pledged as collateral to secure the fulfillment of any obligations. Moreover, there are no amounts owed by the Bank on intangible assets as of the aforementioned dates.

Property, plant and equipment

Property, plant and equipment	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Property, plant and equipment	Note 14 - Property, plant and equipment a) Property, plant and equipment as of December 31, 2019 and 2018 are broken down as follows. Remaining Net assets as Net assets Useful life depreciation of January Gross Accumulated as of December years years 1, 2019 Balance depreciation 31, 2019 MCh$ MCh$ MCh$ MCh$ Land and buildings 19 14 43,065 89,290 (39,068) 50,222 Equipment 3 1 32,607 81,423 (53,872) 27,551 Others 3 2 19,892 47,748 (30,441) 17,307 Furniture 9,373 27,088 (18,209) 8,879 Others 10,519 20,660 (12,232) 8,428 Totals 95,564 218,461 (123,381) 95,080 Remaining Net assets as Net assets Useful life depreciation of January Gross Accumulated as of December years years 1, 2018 Balance depreciation 31, 2018 MCh$ MCh$ MCh$ MCh$ Land and buildings 19 14 83,151 65,843 (22,778) 43,065 Equipment 3 1 25,160 80,383 (47,776) 32,607 Others 3 2 22,268 50,248 (30,356) 19,892 Furniture 10,357 27,440 (18,067) 9,373 Leased assets — 28 (28) — Others 11,911 22,780 (12,261) 10,519 Totals 130,579 196,474 (100,910) 95,564 The useful life presented in the preceding tables, corresponds to the total useful life and residual useful life for the property, plant and equipment. Total useful lives have been determined based on our expected use of the assets, considering quality of the original construction, the environment in which the assets are located, quality and degree of maintenance carried out, and appraisals performed by external experts of the Bank. b) Movements on gross balances as of December 31, 2019, and 2018, are as follows: Land and buildings Equipment Other Totals MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 65,843 80,383 50,248 196,474 Acquisitions 9,449 8,503 2,488 20,440 Sales and/or disposals for the year (3,592) (4,493) (4,014) (12,099) Exchange differences 507 2,514 969 3,990 Reclassification from assets held for sale (*) 9,863 — — 9,863 Others 7,220 (5,484) (1,943) (207) Ending balances as of December 31, 2019 89,290 81,423 47,748 218,461 (*) Corresponds to properties reincorporated to land and buildings that were previously classified as held for the sale of Itaú Corpbanca Colombia S.A. See Note - Other assets and non-current assets held for sale. Note 14 - Property, plant and equipment, continued Land and buildings Equipment Other Totals MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 118,481 65,018 50,773 234,272 Acquisitions 6,207 16,253 2,296 24,756 Sales and/or disposals for the year (14,010) (2,334) (3,187) (19,531) Reclassification to assets held for sale (*) (45,123) (101) (101) (45,325) Exchange differences 288 1,547 467 2,302 Balances as of December 31, 2018 65,843 80,383 50,248 196,474 (*) Corresponds to buildings owned by Itaú Corpbanca Colombia S.A. held for sale, as approved by the Board of Directors of said company, held on July 31, 2018. See detail in Note 17 - Other assets and non-current assets held for sale. c) Movements of accumulated depreciation of property, plant and equipment for years ended December 31, 2019 and 2018, are as follows: Land and buildings Equipment Other Total MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 (22,778) (47,776) (30,356) (100,910) Depreciation for the year (7,814) (9,026) (4,329) (21,169) Sales and/or disposals for the year 2,884 3,622 2,079 8,585 Exchange differences (79) (2,110) (705) (2,894) Reclasification from asset held for sale (*) (6,829) — — (6,829) Impairment (241) (11) (476) (728) Others (4,211) 1,429 3,346 564 Ending balances as of December 31, 2019 (39,068) (53,872) (30,441) (123,381) (*) Corresponds to properties reincorporated to land and buildings that were previously classified as held for the sale of Itaú Corpbanca Colombia S.A. See Note - Other assets and non-current assets held for sale. Land and buildings Equipment Other Total MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 (35,330) (39,858) (28,505) (103,693) Depreciation for the year (7,833) (9,182) (3,644) (20,659) Sales and/or disposals for the year 6,796 2,237 2,429 11,462 Reclassification to assets held for sale (*) 14,472 42 69 14,583 Exchange differences (883) (987) (705) (2,575) Impairment — (28) — (28) Balances as of December 31, 2018 (22,778) (47,776) (30,356) (100,910) (*) Corresponds to buildings owned by Itaú Corpbanca Colombia S.A. held for sale, as approved by the Board of Directors of said company, held on July 31, 2018. See detail in Note 17 - Other assets and non-current assets held for sale. Note 14 - Property, plant and equipment, continued d) As of December 31, 2019 and 2018, the Bank has contracts of operating lease that cannot be cancel unilaterally. The information for future payments is as follows : Future operating lease payments for land, buildings and equipment Between 1 and Up to 1 year 5 years Over 5 years Totals MCh$ MCh$ MCh$ MCh$ As of December 31, 2019 (*) — — — — As of December 31, 2018 23,140 59,171 54,892 137,203 (*) As of Januany 1, 2019 IFRS 16 “Leases” was adopted, as such information related to leases is disclosed in Note 15 - Assets for right-to-use and obligations for lease contracts. e) As of December 31, 2019 and 2018, the Bank holds finance lease contracts that cannot be rescinded or unilaterally terminated. The future payment information is detailed as follows: Future financial leasing payments for land, buildings and equipment Between 1 and Up to 1 year 5 years Over 5 years Totals MCh$ MCh$ MCh$ MCh$ As of December 31, 2019 (*) — — — — As of December 31, 2018 9,373 181,804 45,451 236,628 (*) As of Januany 1, 2019 IFRS 16 “Leases” was adopted, as such information related to leases is disclosed in Note 15 - Assets for right-to-use and obligations for lease contracts. f) The Bank and subsidiaries have no restrictions on property, plant and equipment as of December 31, 2019 and 2018. Additionally, property, plant and equipment has not been pledged to ensure compliance with obligations. Furthermore, there are no amounts owed by the Bank on property, plant and equipment as of the aforementioned dates.

Assets for Rights-of-Use and Ob

Assets for Rights-of-Use and Obligations for Lease Contracts	12 Months Ended
	Dec. 31, 2019
Assets for Rights-of-Use and Obligations for Lease Contracts
Assets for Rights-of-Use and Obligations for Lease Contracts	Note 15 - Assets for Rights-of-Use and Obligations for Lease Contracts a) Asset for right-of-use As indicated in Note 2 - Accounting Changes, no comparative balances are presented as of December 31, 2018, due to the application of the "modified prospective" approach for adoption purposes. (i) The Bank has mainly lease agreements for its branches and corporate building. The composition of this item as of December 31, 2019, is as follows Years Years of of average useful remaining Net Assets as of Accumulated Net Assets as of life useful life January 01, 2019 Gross Balances Depreciation December 31, 2019 N° N° MCh$ MCh$ MCh$ MCh$ Buildings and land 5 5 176,795 197,065 (29,800) 167,265 Others leased assets 3 3 — 190 (14) 176 Totals 176,795 197,255 (29,814) 167,441 (ii) Movement in the gross balance of assets for the right to use assets under lease at 31 December 2019 is as follows Buildings and land Others leased assets Totals MCh$ MCh$ MCh$ Balance as January 01, 2019 176,795 — 176,795 Additions of the period 25,624 190 25,814 Disposals due to early termination (16,953) — (16,953) Reclasifications — — — Inflation indexation adjustments (*) 9,488 — 9,488 Exchange rate difference 2,111 — 2,111 Totals 197,065 190 197,255 (*) Corresponds to subsequent adjustments due to liabilities remeasurements due to index changes, according to each lease agreement. (iii) The movement in the accumulated depreciation of assets for the right to use assets under lease as of December 31, 2019, is as follows Buildings and land Other leased assets Totals MCh$ MCh$ MCh$ Opening balance as of January 1, 2019 — — — Depreciation of the period (**) (31,843) (14) (31,857) Disposals due to early termination 2,590 — 2,590 Exchange rate difference (547) — (547) Reclasifications — — — Impairment — — — Ending balances as of December 31, 2019 (29,800) (14) (29,814) (**) Note 15 - Assets for Rights-of-Use and Obligations for Lease Contracts, continued b) Lease obligations i) As of December 31, 2019, the obligations for lease contracts are as follows As of December 31, 2019 MCh$ Lease Obligations 172,924 Totals 172,924 The Bank and its subsidiaries have contracts, with certain renewal options, for which there is reasonable certainty that the option will be exercised. In such cases, the lease period used to measure the liabilities and assets corresponds to an estimate of future renewals. ii) Movement in lease liabilities and cash flows for the period is shown below 2019 MCh$ Opening balance as January 1, 176,795 Additions due to new contracts 25,624 Disposals due to early termination (10,808) Interest expenses 5,034 Inflation indexation adjustments 9,488 Exchange difference 2,868 Capital and interest payments (36,077) Ending balance as December 31, 172,924 iii) Future maturities of lease liabilities are as follows As of December 31, 2019 MCh$ Within 1 year 10,193 After 1 year but within 2 years 9,802 After 2 years but within 3 years 11,348 After 3 years but within 4 years 13,286 After 4 years but within 5 years 7,221 After 5 years 121,074 Totals 172,924

Current Taxes and Deferred Taxe

Current Taxes and Deferred Taxes	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Current Taxes and Deferred Taxes	Note 16 - Current Taxes and Deferred Taxes a) Current taxes At the end of each reporting period, the Bank and subsidiaries recognize a First Category Income Tax Provision, which is determined based on currently enacted tax legislation. The net provision for current taxes recognized as of December 31, 2019 was MCh$85,503 (MCh$121,938 as of December 31, 2018), according to the following detail: a.1) Current taxes assets and liabilities by geographical area: As of December 31, 2019 As of December 31, 2018 Chile USA (*) Colombia Totals Chile USA (*) Colombia Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current tax assets 30,773 — 54,743 85,516 68,094 2,161 52,874 123,129 Current tax liabilities (13) — — (13) (528) — (663) (1,191) Totas, net 30,760 — 54,743 85,503 67,566 2,161 52,211 121,938 a.2) Details of current tax items by geographical area: As of December 31, 2019 As of December 31, 2018 Chile USA (*) Colombia Total Chile USA (*) Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income tax (68,075) — (9,062) (77,137) (81,487) — (14,273) (95,760) Less: Monthly Provisional Payment 61,621 — 27,218 88,839 21,424 — 1,544 22,968 Tax Credit for Training Costs 850 — — 850 800 — — 800 Tax Credit Donations 802 — — 802 745 — — 745 Other taxes to be recovered (**) 35,562 — 36,587 72,149 126,084 2,161 64,940 193,185 Totals 30,760 — 54,743 85,503 67,566 2,161 52,211 121,938 (*) Corresponds to the branch located in New York. (**) The other taxes to be recovered correspond mainly to monthly provisional payments paid in previous years, credits for training expenses, provisional payments for absorbed utilities with right to return, among others. b) Effect on income The tax expense for the years ended December 31, 2019, 2018 and 2017 is comprised of the following items: 2019 2018 2017 MCh$ MCh$ MCh$ Income tax expense Current tax expense (77,137) (95,760) (19,689) Deferred taxes Deferred tax expenses 33,727 28,110 74,611 Subtotals (43,410) (67,650) 54,922 Others (4,443) 591 (2,051) Net expense for income taxes (47,853) (67,059) 52,871 Note 16 - Current Taxes and Deferred Taxes, continued c) Effective tax rate reconciliation The following table reconciles the income tax rate to the effective rate applied to determine the Bank’s income tax expense as of December 31, 2019, 2018 and 2017. The nominal tax rates of the countries where consolidated subsidiaries are located are: 2019 2018 2017 Tax rates Tax rates Tax rates Chile Colombia USA For the years ended December 31, 2019 2018 2017 Tax rate Amount Tax rate Amount Tax rate Amount % MCh$ % MCh$ % MCh$ Amount calculated by using the statutory rates 27.00 (46,541) 27.00 (63,157) 25.50 (2,538) Exchange differences due to investments in Colombia 9.51 (16,399) 13.47 (31,499) (204.84) 20,390 Equity price level restatement for tax purposes (13.94) 24,037 (9.49) 22,188 (141.93) 14,128 Local tax for USA and Panama income 1.76 (3,030) 0.02 (54) (98.46) 9,801 Effect of rate change Chile — — — — (51.68) 5,144 Tax Reform USA 35%-21% — — — — 95.21 (9,477) Effect of rate change Colombia (2.29) 3,954 (0.01) 20 47.07 (4,685) Effect of rates New York subsidiary (**) 0.05 (81) (0.18) 433 14.65 (1,458) Effect of rates Colombia subsidiary (**) 3.42 (5,896) 0.50 (1,173) (54.55) 5,430 Penalty fee SBIF — — 0.69 (1,616) — — Permanent and other differences (*) 2.26 (3,897) (3.33) 7,799 (162.11) 16,136 Totals 27.77 (47,853) 28.67 (67,059) (531.14) 52,871 (*) Other includes, mainly, benefits derived from the tax effect of goodwill from business combinations in Colombia made by Corpbanca prior to the acquisition of Itaú, amounting to MCh$11,276 in 2018, and MCh$20,568 in 2017 (**) This line reflects the differences in tax rates in other jurisdictions, based on the Bank’s consolidated results. d) Other comprehensive income – tax effects The table below sets for a summary of the deferred tax effect on other comprehensive income for the years ended December 31, 2019, 2018 and 2017, which consists of the following items: d.1) Tax effect of “OCI” that may be reclassified subsequently to profit or loss: 2019 2018 2017 MCh$ MCh$ MCh$ Debt instruments at fair value through other comprehensive income (5,926) (2,172) — Available for sale investments — — (3,333) Hedge of a net investment in foreign operations 14,373 10,565 (14,211) Cash flow hedge (162) (1,669) 44 Total charge to other comprehensive income 8,285 6,724 (17,500) Note 16 - Current Taxes and Deferred Taxes, continued d.2) “OCI” that may not be reclassified subsequently to profit or loss: 2019 2018 2017 MCh$ MCh$ MCh$ Income tax relating to defined benefit obligation 1,542 (44) (6) Total charge to other comprehensive income 1,542 (44) (6) e) Effect of deferred taxes e.1) Totals deferred taxes Detail of effects for deferred taxes presented in assets and liabilities is as follows: As of December 31, 2019 As of December 31, 2018 Assets (*) Liabilities (*) Net Assets (*) Liabilities (*) Net MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Allowances for loan losses 162,874 — 162,874 124,408 — 124,408 Accrued interest on past due portfolio 8,214 — 8,214 7,377 — 7,377 Unearned price differences 324 — 324 288 — 288 Personnel provisions 20,618 — 20,618 18,220 (155) 18,065 Miscellaneous provisions 41,576 — 41,576 51,033 — 51,033 Tax losses 55,598 — 55,598 62,685 — 62,685 Net tax value of amortizable assets 16,051 — 16,051 14,739 — 14,739 Depreciation of property, plant and equipment (47,423) — (47,423) (42,581) — (42,581) Lease division and others 18,925 — 18,925 19,261 — 19,261 Mark to market of financial instruments (15,846) — (15,846) (26,821) 138 (26,683) Itaú-Corpbanca business combination (57,996) — (57,996) (61,521) — (61,521) Others 4,339 (263) 4,076 11,598 (454) 11,144 IFRS 16 leases effect 1,403 — 1,403 — — — Totals assets (liabilities) for deferred taxes 208,657 (263) 208,394 178,686 (471) 178,215 e.2) Deferred taxes by geographic area: As of December 31, 2019 As of December 31, 2018 Chile USA Colombia Total Chile USA Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Deferred tax assets 182,657 18,527 7,473 208,657 130,883 20,311 27,492 178,686 Deferred tax liabilities — — (263) (263) — — (471) (471) Net by geographic area 182,657 18,527 7,210 208,394 130,883 20,311 27,021 178,215 Note 16 - Current Taxes and Deferred Taxes, continued Effects of deferred taxes on assets and liabilities arising from temporary differences (by geographic area) are as follows: As of December 31, 2019 As of December 31, 2018 Chile USA Colombia Total Chile USA Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Allowances for loan losses 155,115 358 7,401 162,874 99,621 (4,531) 29,318 124,408 Accrued interest on past due portfolio 8,214 — — 8,214 7,377 — — 7,377 Unearned price differences 324 — — 324 288 — — 288 Personnel provisions 16,860 (91) 3,849 20,618 13,871 139 4,055 18,065 Miscellaneous provisions 49,335 856 (8,615) 41,576 43,824 3,843 3,366 51,033 Tax losses 1,912 15,750 37,936 55,598 2,460 11,034 49,191 62,685 Net tax value of amortizable assets 16,051 — — 16,051 14,739 — — 14,739 Depreciation of property, plant and equipment (50,746) — 3,323 (47,423) (37,513) — (5,068) (42,581) Lease division and others 11,619 — 7,306 18,925 9,422 — 9,839 19,261 Mark to market of financial instruments (13,484) — (2,362) (15,846) (6,535) — (20,148) (26,683) Itaú-Corpbanca business combination (16,584) — (41,412) (57,996) (16,613) — (44,908) (61,521) Others 3,136 1,654 (714) 4,076 (58) 9,826 1,376 11,144 IFRS 16 leases effect 905 — 498 1,403 — — — — Totals assets (liabilities), net 182,657 18,527 7,210 208,394 130,883 20,311 27,021 178,215

Other Assets and Non-current As

Other Assets and Non-current Assets Held for Sale	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Other Assets and Non-current Assets Held for Sale	Note 17 - Other Assets and Non-current Assets Held for Sale a) The detail of other assets is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets for leasing (1) 18,724 33,991 Other assets 752,137 467,806 Deposits in guarantee 33,786 30,016 Accounts and notes receivable (2) 48,017 147,248 Rights on brokerage transactions 158,687 52,361 Repossessed assets from leasing transactions 1,787 5,368 Rentals paid in advance (3) — 5,698 Prepaid expenses (4) 21,179 19,674 Collateral for financial transactions (threshold) 407,529 155,641 Claims receivable from insurance companies 1,933 360 Asset management fees receivable 816 1,496 Insurance brokerage fees receivable 5,654 6,537 Other assets 72,749 43,407 Totals 770,861 501,797 (1) Property, plant and equipment acquired to be ceded under financial leases. (2) This includes rights and accounts receivable that fall outside the Bank’s line of business such as tax credits, cash guarantee deposits and other balances pending of collection . (3) Leases paid in advance to SMU S.A. in connection with ATM locations (see Note 34, letter b) (4) Includes payments made in advance for different services that will be received (leases, insurance, and others). b) The detail of non-currents assets held for sale is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets received in lieu of payment 10,291 29,060 Property, plant and equipment held for sale (1) 6,911 30,742 Totals 17,202 59,802 (1) Corresponds to buildings owned by Itaú Corpbanca Colombia S.A. held for sale, as approved by the Board of Directors of the entity, during the meeting held on July 31, 2018.

Deposits and Other Demand Liabi

Deposits and Other Demand Liabilities and Time Deposits	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Deposits and Other Demand Liabilities and Time Deposits	Note 18 - Deposits and Other Demand Liabilities and Time Deposits a) As of December 31, 2019 and 2018 deposits and other demand liabilities are as follow: As of December 31, 2019 2018 MCh$ MCh$ Checking accounts 2,882,535 2,570,436 Other deposits and demand accounts 1,698,439 1,396,573 Advance payments received from customers 45,902 79,801 Other demand liabilities 246,572 253,665 Totals 4,873,448 4,300,475 b) As of December 31, 2019 and 2018 the composition of time deposits and other time liabilities is as follows: As of December 31, 2019 2018 MCh$ MCh$ Time deposits 11,599,943 10,093,703 Time savings accounts 20,016 27,156 Other time liabilities 228 252 Totals 11,620,187 10,121,111

Interbank Borrowings

Interbank Borrowings	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Interbank Borrowings	Note 19 - Interbank Borrowings a) As of December 31, 2019 and 2018, interbank borrowings are as follows: As of December 31, 2019 2018 MCh$ MCh$ Loans obtained from local financial institutions Banco BTG Pactual Chile — 5,863 Subtotals — 5,863 Loans obtained from foreign financial institutions Shanghai Commercial & Savings Bank 279,202 2,244 Standard Chartered Bank 229,063 68,169 Citibank N.A. 206,549 118,975 Credicorp Capital SASAF 200,374 175,326 Bank of America, N.A. 160,243 153,546 The Export-Import Bank of Korea 146,549 2,244 IFC Corporación Financiera Internacional 118,065 145,817 Banco Crédito del Perú 104,831 90,022 Bank of Montreal 104,331 106,586 Bank of Nova Scotia 101,989 65,802 BNP Paribas 98,817 91,072 BBVA Asset Management Continental S.A. (Perú) 86,709 73,481 Wells Fargo Bank, N.A. 82,480 209,615 Corporación Andina de Fomento 75,149 104,273 HSBC USA 74,877 43,214 Commerzbank A.G. 71,646 75,032 Other banks 65,252 67,288 Banco Latinoamericano de Exportación 63,991 52,817 Interfondos S.A. Sociedad Administradora de Fondos 55,596 45,149 Bancoldex S.A. (Colombia) 46,390 80,394 Sumitomo Mitsui Banking Corporation 44,826 242,883 Findeter S.A. Financiera del Desarrollo Territorial 44,552 38,364 Scotia Fondos Sociedad Administradora de Fondos S.A. 34,951 108,979 Apple Bank for Saving 34,195 18,147 Cobank C.B. 30,882 33,850 KBC Bank NV 21,896 — Ing Bank NV 14,870 30,874 La Caixa 13,961 — Export Development Canada 12,078 11,199 Banco de Bogotá 8,250 8,560 China Construction Bank 5,556 5,155 Mizuho Corporate Bank 2,411 31,763 Bancaribe Curacao Bank N.V. 2,411 12,694 Bayern Landesbank 2,411 2,237 Banco República 1,403 1,805 Fondos SURA SAF S.A.C. — 2,827 Scotiabank Perú S.A — 1,457 Subtotals 2,646,756 2,321,860 Totals 2,646,756 2,327,723 Note 19 - Interbank Borrowings, continued b) Interbank borrowings from financial institutions by maturity is as follows: As of December 31, 2019 2018 MCh$ MCh$ Within 1 year 1,997,751 1,829,814 After 1 year but within 2 years 442,784 319,870 After 2 years but within 3 years 83,908 17,595 After 3 years but within 4 years 80,073 77,993 After 4 years but within 5 years 7,521 11,644 After 5 years 34,719 70,807 Totals 2,646,756 2,327,723

Debt Instruments Issued and Oth

Debt Instruments Issued and Other Financial Liabilities	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Debt Instruments Issued and Other Financial Liabilities	Note 20 - Debt Instruments Issued and Other Financial Liabilities As of December 31, 2019 and 2018, composition of debt instruments issued and other financial liabilities is as follows: As of December 31, 2019 2018 MCh$ MCh$ Debt instruments issued Mortgage finance bonds 40,933 53,463 Senior bonds 5,289,084 4,882,341 Subordinated bonds 1,078,339 1,074,320 Subtotals 6,408,356 6,010,124 Other financial liabilities Liabilities with the public sector 10 10 Borrowings from local financial institutions 12,956 12,390 Foreign borrowings — — Subtotals 12,966 12,400 Totals 6,421,322 6,022,524 Debt classified as short term includes demand obligations or obligations that will mature in less than one year. All other debt is classified as long term, and is detailed as follows: As of December 31, 2019 Long term Short term Totals MCh$ MCh$ MCh$ Mortgage finance bonds 33,046 7,887 40,933 Senior bonds 4,645,463 643,621 5,289,084 Subordinated bonds 1,078,339 — 1,078,339 Debt instruments issued 5,756,848 651,508 6,408,356 Other financial liabilities — 12,966 12,966 As of December 31, 2018 Long term Short term Totals MCh$ MCh$ MCh$ Mortgage finance bonds 43,029 10,434 53,463 Senior bonds 4,220,626 661,715 4,882,341 Subordinated bonds 1,052,111 22,209 1,074,320 Debt instruments issued 5,315,766 694,358 6,010,124 Other financial liabilities — 12,400 12,400 The following tables provide with additional information, including maturities, for each type of debt issued as of December 31, 2019 and 2018. Note 20 - Debt Instruments Issued and Other Financial Liabilities, continued a) Mortgage finance bonds Detail of maturities for mortgage finance bonds is as follows: As of December 31, 2019 2018 MCh$ MCh$ Within 1 year 7,887 10,434 After 1 year but within 2 years 6,508 7,612 After 2 years but within 3 years 6,072 7,092 After 3 years but within 4 years 5,524 6,516 After 4 years but within 5 years 5,121 5,908 After 5 years 9,821 15,901 Totals 40,933 53,463 b) Senior bonds Details for senior bonds, by currency, are as follows: As of December 31, 2019 2018 MCh$ MCh$ Bonds in UF 4,273,637 3,568,532 Bonds in CLP 481,083 416,116 Bonds in USD — 529,363 Bonds in COP 534,364 368,330 Totals 5,289,084 4,882,341 Detail of maturities for senior bonds is as follows: As of December 31, 2019 2018 MCh$ MCh$ Due within 1 year 643,621 661,715 After 1 year but within 2 years 323,921 637,595 After 2 years but within 3 years 608,342 216,695 After 3 years but within 4 years 282,882 446,323 After 4 years but within 5 years 478,634 276,047 After 5 years 2,951,684 2,643,966 Totals 5,289,084 4,882,341 Note 20 - Debt Instruments Issued and Other Financial Liabilities, continued The following table presents details for senior bonds issued: Senior bonds issued during the year ended December 31, 2019 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORAM0710 UF 2,000,000 5 years and 5 months 3% annual 02/11/2019 07/01/2024 BCORAM0710 UF 3,000,000 5 years and 5 months 3% annual 02/15/2019 07/01/2024 BITACU0418 UF 2,000,000 9 years and 7 months 2% annual 02/25/2019 10/09/2028 BITACU0418 UF 2,000,000 9 years and 7 months 2% annual 02/26/2019 10/09/2028 BITACV0418 UF 2,000,000 10 years and 7 months 2% annual 03/07/2019 10/09/2029 BITACV0418 UF 2,000,000 10 years and 7 months 2% annual 03/14/2019 10/09/2029 BITACW0418 UF 2,500,000 11 years and 5 months 2% annual 05/07/2019 10/09/2030 BITACS0418 UF 2,000,000 7 years and 3 months 2% annual 07/03/2019 10/09/2026 Totals 17,500,000 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORBX0914 CLP 40,000,000 2 years and 2 months 5% annual 07/04/2019 09/01/2021 BCORBX0914 CLP 1,000,000 2 years and 2 months 5% annual 07/05/2019 09/01/2021 BCORBX0914 CLP 14,500,000 2 years and 2 months 5% annual 07/10/2019 09/01/2021 BCORBX0914 CLP 1,500,000 2 years and 2 months 5% annual 07/15/2019 09/01/2021 Totals 57,000,000 Serie Currency Amount Term Issuance rate Placement date Maturity date SUBSERIE A36 COP 163,035,000,000 3 years 6,13% annual 05/21/2019 05/21/2022 SUBSERIE C60 COP 186,965,000,000 5 years 2,86% annual 05/21/2019 05/21/2024 SERIE A SUBSERIE A60 – 60 COP 170,820,000,000 5 years 6,05% annual 10/16/2019 10/16/2024 SERIE C SUBSERIE C84 – 84 COP 50,000,000,000 7 years 2,28% annual 10/16/2019 10/16/2026 SERIE C SUBSERIE C120 COP 129,180,000,000 10 years 2,76% annual 10/16/2019 10/16/2029 Totals 700,000,000,000 Senior bonds issued during the year ended December 31, 2018 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORAQ0710 UF 2,000,000 10 years and 4 months 3% annual 02/06/2018 07/01/2028 BCORAR0710 UF 2,450,000 11 years and 4 months 3% annual 02/21/2018 07/01/2029 BCORAR0710 UF 5,000,000 11 years and 4 months 3% annual 03/14/2018 07/01/2029 BCORAN0710 UF 2,000,000 7 years and 5 months 3% annual 06/05/2018 07/01/2025 Totals 11,450,000 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORBY0914 CLP 70,000,000,000 4 years and 5 months 5% annual 04/13/2018 09/01/2022 Totals 70,000,000,000 Serie Currency Amount Term Issuance rate Placement date Maturity date SUBSERIE B30 COP 55,470,000,000 3 years and 6 months 1.20% annual 11/22/2018 05/10/2021 SUBSERIE C48 COP 258,706,000,000 4 years 2.91% annual 11/22/2018 11/01/2022 Totals 314,176,000,000 Note 20 - Debt Instruments Issued and Other Financial Liabilities, continued c) Subordinated bonds Details of subordinated bonds, by currency, are as follows As of December 31, 2019 2018 MCh$ MCh$ Bonds in UF 95,545 95,599 Bonds in CLP 796,564 781,925 Bonds in COP 186,230 196,796 Totals 1,078,339 1,074,320 Detail of maturities for subordinated bonds is as follows As of December 31, 2019 2018 MCh$ MCh$ Within 1 year — 22,209 After 1 year but within 2 years — — After 2 years but within 3 years 14,526 — After 3 years but within 4 years 23,923 18,604 After 4 years but within 5 years 128,717 22,484 After 5 years 911,173 1,011,023 Totals 1,078,339 1,074,320 For the years ended December 31, 2019 and 2018 no issuance of subordinated bonds took place. d) Others financial obligations As of December 31, 2019 2018 MCh$ MCh$ Within 1 year — — After 1 year but within 2 years — — After 2 years but within 3 years — — After 3 years but within 4 years — — After 4 years but within 5 years — — After 5 years — — Totals financial liabilities — — Short-term financial liabilities Amounts due to credit card transactions 12,956 12,390 Others 10 10 Totals short-term financial liabilities 12,966 12,400 Totals other financial liabilities 12,966 12,400 As of December 31, 2019 and 2018, the Bank has no financial debt covenants to comply with.

Provisions

Provisions	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Provisions	Note 21 - Provisions As of December 31, 2019 and 2018, the Bank has registered the following movements in its provisions: a) Provisions composition Provisions disclosed in liabilities as of December 31, 2019 and 2018 present the following detail: As of December 31, 2019 2018 MCh$ MCh$ Provisions for personnel salaries and expenses 102,877 99,945 Provisions for mandatory dividends 38,120 51,614 Provisions for contingent loans risk 34,271 45,848 Provisions for contingencies 2,559 17,496 Totals 177,827 214,903 b) Movements in provisions for contingent loans risk, for the year ended December 31, 2019 are as follows: Contingent loans risk Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Opening balances as of January 1, 2019 15,879 28,112 1,857 45,848 Changes in the allowances - Transfers to stage 1 1,123 (1,036) (87) — - Transfers to stage 2 (521) 570 (49) — - Transfers to stage 3 (90) (161) 251 — - Increases due to change in credit risk 1,932 1,618 4,605 8,155 - Decreases due to change in credit risk (5,695) (802) (157) (6,654) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 5,490 1,193 780 7,463 Financial assets that have been derecognized (4,927) (15,322) (990) (21,239) Changes in models/risk parameters — — — — Foreign exchange and other movements 698 — — 698 Ending balances as of December 31, 2019 13,889 14,172 6,210 34,271 Note 21 – Provisions, continued Movements in provisions for contingent loans risk, for the year ended December 31, 2018 are as follows: Contingent loans risk Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Ending balances as of December 31, 2017 — — — — Restatement of the prior year due to IFRS 9 adoption 13,485 44,107 2,099 59,691 Opening Opening balances as of January 1, 2018 13,485 44,107 2,099 59,691 Changes in the allowances - Transfers to stage 1 — (504) 116 (388) - Transfers to stage 2 (155) — 268 113 - Transfers to stage 3 (42) (66) — (108) - Increases due to change in credit risk 2,283 5,528 38 7,849 - Decreases due to change in credit risk (1,298) (446) (39) (1,783) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 5,104 965 126 6,195 Financial assets that have been derecognized (3,763) (21,558) (754) (26,075) Changes in models/risk parameters — — — — Foreign exchange and other movements 265 86 3 354 Ending balances as of December 31, 2018 15,879 28,112 1,857 45,848 c) The provision balance changes during 2019 and 2018, are as follows: Provisions for personnel Provisions for Provisions for Provisions for salaries and expenses mandatory dividends contingent loans risk contingencies (i) (ii) (iii) Totals MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 99,945 51,614 45,848 17,496 214,903 Provisions applied (71,020) (51,614) (23,804) 5,601 (140,837) Provisions established 82,456 38,120 18,483 5,408 144,467 Provisions released (17,514) — (6,954) (26,367) (50,835) Other movements 9,010 — 698 421 10,129 Ending balances as of December 31, 2019 102,877 38,120 34,271 2,559 177,827 Provisions for personnel Provisions for Provisions for Provisions for salaries and expenses mandatory dividends contingent loans risk contingencies (i) (ii) (iii) Totals MCh$ MCh$ MCh$ MCh$ MCh$ Opening Opening balances as of January 1, 2018 90,559 17,234 — 10,096 117,889 Provisions established due to IFRS 9 adoption — — 59,691 — 59,691 Provisions applied (27,026) (17,234) — — (44,260) Provisions recorded 53,156 51,614 14,511 8,993 128,274 Provisions released (25,561) — (28,354) (1,347) (55,262) Other movements 8,817 — — (246) 8,571 Ending balances as of December 31, 2018 99,945 51,614 45,848 17,496 214,903 (i) Employee benefits and staff salaries are recorded in “Personnel salaries expenses.” (ii) Mandatory dividends are recorded in the Equity Statement, against “Accrual for mandatory dividends.” Note 21 – Provisions, continued (iii) The contingency provisions/ (releases) are included in Other operating (expenses)/income, depending on whether they are debit or a credit. d) Provisions for payroll and employee benefits As of December 31, 2019 2018 MCh$ MCh$ Provision for long-term termination benefits (e.1) 9,814 8,298 Provision for pension plan (e.2) 35,166 30,908 Provision for retroactive unemployment plan (e.3) 334 373 Provision for retirements bonus plan (e.4) 687 542 Provision for other employee benefits (*) 41,645 46,249 Vacation accrual (*) 15,231 13,575 Totals 102,877 99,945 (*) Short-term benefits e) The main aspects of the Bank’s long term employee benefits are detailed below e.1) Other long-term employee benefits Description: Annual payment during the month in which the employee completes a given number of years of service (in five-year intervals from 5 to 50). Measurement: The projected unit credit method was used to determine the present value of the defined-benefit obligation and the corresponding service cost. For all active plan participants, the “projected accrued benefit” is based on the plan formula and years of service as of the date of calculation, but using assumptions such an average salary and social security benefits, projected to the age at which it is assumed that the employee will stop providing services. The total benefit is used for inactive members. The plan does not have any related policies (and therefore no reimbursements) or assets, but rather uses structured funding based on the entity’s financial conditions. The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Summary of economic assumptions Discount rate 6.25 Expected rate of salary increase 5.50 5.70 Note 21 – Provisions, continued The movements of the present value of the obligation for this type of benefit and the amounts recognized in the Consolidated Statements of Income are determined using the projected credit unit method and it consist of the following: As of December 31, 2019 2018 MCh$ MCh$ Opening Opening balances as of January 1, 8,298 7,914 Net cost of benefits (*) 1,490 1,397 Payments (815) (973) Provisions recorded 278 (350) Exchange differences 563 310 Ending balances as of December 31, 9,814 8,298 (*) Detail of net cost of benefit is as follows: As of December 31, 2019 2018 MCh$ MCh$ Current services cost 836 Interest expense on obligation 561 Total 1,490 1,397 e.2) Pension plan Description : Old-age pension or Survivors in accordance with the Social Security Law in Colombia and benefits acquired with the Entity. Measurement: The projected unit credit method is using for the determination of present value of the obligation by benefit and the associated cost to that. Using this method the obligation by benefit is the present value of current benefits for past services, but calculating the plan benefit basing on the salary projected to the date on which it is assumed that the participant receives the benefit. The plan has no policy (without refund) or associated assets, being a structured financing according to the financial conditions of the entity. The summary of the economic assumptions is as follows: As of December 31, 2019 2018 % % Assumptions Discount rate 6.50 6.75 Expected rate of salary increases 3.00 3.20 Inflation rate 3.00 3.20 Note 21 – Provisions, continued The detail of Pension plan balances movements is as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 30,908 31,761 Interest expense on obligation 2,120 2,359 Payments (3,768) (3,802) Actuarial losses (gains) 4,512 (698) Exchange differences 1,394 1,288 Ending balances as of December 31, 35,166 30,908 e.3) Retroactive unemployment plan Description : Retroactive unemployment plan prior to Law 50 from 1990 in Colombia. Measurement: The projected unit credit method was used to determine the present value of the defined-benefit obligation and the corresponding service cost. For all active plan participants, the “projected accrued benefit” is based on the plan formula and years of service as of the date of calculation, but using an average salary and social security benefits, etc., projected to the age at which it is assumed that the employee will stop providing services. The total benefit is used for inactive members. The plan does not have any related policies (and therefore no reimbursements) or assets, but rather uses structured funding based on the entity’s financial conditions. The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Assumptions Discount rate 5.50 5.75 Expected rate of salary increases 5.50 5.70 Inflation rate 3.00 3.20 The details of movements for this benefits during years ended December 31, 2019 and 2018 are as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 373 371 Current services costs 136 108 Interest expense on obligations 21 24 Actuarial gains (113) (32) Payments of benefits (108) (115) Exchange differences 25 17 Ending balances as of December 31, 334 373 Note 21 – Provisions, continued e.4) Retirement Bonus Plan Description: Fixed payment upon retirement Measurement: The projected unit credit method is used to determine the present value of the benefit obligation and the corresponding cost. Under this method, the benefit obligation is the present value of the current benefits for past service but calculating the plan benefit based on the projected salary as of the date in which it is assumed that the participant will receive the benefit. The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Summary of economic hypothesis Discount rate(s) 6.75 Expected rate(s) of salary increase 5.20 Inflation rate 3.20 The amounts recognized for this benefit are as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 542 476 Current service costs — 39 Interest expense on obligation 81 37 Actuarial (gains) losses 33 (24) Payments of benefits (6) (5) Exchange differences 37 19 Ending balances as of December 31, 687 542 The effect on Other Comprehensive Income is summarized as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Pension plan (e.2) (4,512) (698) 223 Retroactive unemployment plan (e.3) 113 (32) (19) Retirement bonus plan (e.4) (33) (24) 4 Total recognition of obligations for defined benefits (4,432) (754) 208 Note 21 – Provisions, continued Future payments · Future actuarial calculations may differ with respect to the calculations presented, due to the following factors: The experience of the plans differs from those anticipated by the selected economic and demographic hypotheses. · Changes in economic and demographic assumptions. · Expected increases or decreases as a natural part of the functioning of the methodology for these calculations (for example, the end of the amortization period or additional costs based on the financing situation of the plan). · Changes in the characteristics of the applicable plan or law, and with respect thereto, there are no significant events affecting the results presented since the last assessment. The following is a detail of future payments for the year 2019 and 2018: Long-term Retroactive Retirement termination unemployment benefit 2019 benefits Pension plan plan plan MCh$ MCh$ MCh$ MCh$ Fiscal year 2020 948 3,116 69 64 Fiscal year 2021 1,058 2,960 16 28 Fiscal year 2022 1,250 2,793 70 47 Fiscal year 2023 1,245 2,725 77 50 Fiscal year 2024-2031 (combined) 915 2,698 29 42 Fiscal year 2025-2031 (combined) 5,134 12,844 71 222 Long-term Retroactive termination unemployment Retirement 2018 benefits Pension plan plan benefit plan MCh$ MCh$ MCh$ MCh$ Fiscal year 2019 783 2,995 66 40 Fiscal year 2020 842 2,858 38 22 Fiscal year 2021 1,003 2,682 20 26 Fiscal year 2022 1,147 2,527 70 40 Fiscal year 2023-2031 (combined) 1,160 2,457 102 43 Fiscal year 2024-2031 (combined) 4,749 11,751 94 203

Other liabilities and liabiliti

Other liabilities and liabilities directly associated with non-current assets held for sale	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Other liabilities and liabilities directly associated with non-current assets held for sale	Note 22 - Other liabilities and liabilities directly associated with non-current assets held for sale a) As of December 31, 2019 and 2018 the other liabilities are as follows: As of December 31, 2019 2018 MCh$ MCh$ Accounts and notes payable (1)(2) 382,271 317,703 Dividends payable 267 270 Unearned income (3) 5,644 9,089 Unearned fees 8,321 8,604 Payables due to brokerage transactions 140,799 75,872 Collateral for financial transactions (threshold) 116,654 91,223 Other liabilities 54,958 19,034 Totals 708,914 521,795 (1) Obligations other than those directly related to the business operations, such as payable withholding taxes, payable social security contributions, balances due on purchases of materials, balances due on obligations under lease agreements for the acquisition of fixed assets, accounts payable for expenses, and others. (2) As of December 31, 2018 it includes MCh$5,985 corresponding to a penalty fee payable to the former SBIF (currently CMF). (3) It corresponds to commissions associated with financial advisory and insurance brokerage businesses that must be deferred in accordance with applicable regulations. b) As of December 31, 2019 and 2018 there are no liabilities directly associated with non-current assets held for sale.

Contingencies, Commitments, and

Contingencies, Commitments, and Responsibilities	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Contingencies, Commitments, and Responsibilities	Note 23 - Contingencies, Commitments, and Responsibilities a) Lawsuits and Legal Proceedings Lawsuits against the Bank with provision As of the date of issuance of these Consolidated Financial Statements, legal actions have been filed against the Bank and its subsidiaries involving its transactions in the ordinary course of business. They are mainly lawsuits pending against the Bank related to loans and other matters, most of which, according to the Bank’s Legal Services Divisions involved in the lawsuits, present no risk of significant loss. Notwithstanding the above, provisions for MCh$280 and MCh$956 as of December 31, 2019 and December 31, 2018, respectively, have been recorded in the Consolidated Financial Statements. Other lawsuits against the Bank without provision Other legal actions have been filed against the Bank and its subsidiaries involving its transactions carried out in the ordinary course of business. The Bank’s maximum exposure for these lawsuits amounts to approximately MCh$22,207 as of December 31, 2019 and MCh$26,995 as of December 31, 2018. However, in Management’s opinion based on reports from the Legal Division as of December 31, 2019, it is more likely than not that these lawsuits will not result in significant losses not contemplated by the Bank in these Consolidated Financial Statements. Itaú Corpbanca Colombia S.A. The Bank and its subsidiaries are involved in civil, administrative and labor proceedings. The outstanding civil and administrative proceedings are related to Banking transactions, and the remaining ones derive from the ownership of leased assets. Such claims amount, in the aggregate, to MCh$38,503 as of December 31, 2019 (MCh$32,375 as of December, 2018). According to the evaluation of the expected results in each lawsuit the Bank has recorded a provision of MCh$141 as of December 31, 2019 (MCh$152 as of December 31, 2018). a) Commitments Transaction Agreement On January 29, 2014, Inversiones Corp Group Limitada, Inversiones Saga Limitada (both together CorpGroup), Itaú-Unibanco Holding S.A., Corpbanca, and Banco Itaú Chile, subscribed a contract called “Transaction Agreement”, in accordance to the contract, they agreed a strategic association of its operations in Chile and Colombia. This strategic association gave rise to the merger of Corpbanca and Banco Itaú Chile, which was be renamed “Itaú Corpbanca” and took place on April 1, 2016. The Transaction Agreement (from January 2014 and its subsequent modifications) also contemplates that on January 28, 2022 Itaú Corpbanca will purchase from CorpGroup the 12.36% of shares in Itaú Corpbanca Colombia, equivalent to the participation that CorpGroup held (directly or through other entities) in said entity at the merger date, corresponding to 93,306,684 shares. The purchase price agreed will be US$3.5367 per share, amounting to US$329,997,749.30, plus interest from August 4, 2015 until the payment date at an annual interest rate equal to Libor plus 2.7% minus the sum of the aggregate amount of dividends paid by Itaú Corpbanca Colombia to CorpGroup for the corresponding shares. This agreement, as explicitly noted, is subject to the prior approvals from the regulators, as applicable, in Chile and abroad. Note 23 - Contingencies, Commitments, and Responsibilities, continued According to article 76 of the General Banking Law, investments in shares of banks established abroad are subject to the prior approval of the Superintendency of Banks and Financial Institutions in Chile (currently CMF), as well as the Central Bank of Chile (BCCH), which in turn is subject to compliance with the conditions set forth in article 78 of said legal corp. Additionally, in the case of banks incorporated in Colombia, an eventual acquisition of shares in Itaú Corpbanca Colombia by Itaú Corpbanca is also subject to the prior authorization of the Financial Superintendency of Colombia (SFC). Consequently, the aforementioned transaction must be confirmed only by the occurrence of one or more future and uncertain events that are not entirely under the control of the Bank. Acquisition of the MCC entities In accordance with the provisions of the Transaction Agreement executed on January 29, 2014 between Inversiones Corp Group Interhold SpA, Inversiones Saga Limitada (these last two, together “CorpGroup”), Itaú Unibanco Holding S.A., Corpbanca, and Banco Itaú Chile, as amended on June 2, 2015 and on January 20, 2017, hereinafter the “Transaction Agreement”, Itaú Unibanco Holding S.A. assumed the obligation to transfer to Itaú Corpbanca, and the latter the obligation to acquire, 100% of its shares in MCC Securities Inc., MCC Asesorías Limitada, and MCC S.A. Corredores de Bolsa (herein “MCC entities”) in accordance with the terms agreed upon and subject to the usual terms and conditions for this kind of transactions. On May 28, 2019, the Board of Directors of Itaú Corpbanca approved to proceed with the acquisition of the MCC entities, in accordance with the provisions of the Transaction Agreement and in compliance with the provisions of Title XVI of Law No. 18,046 on Corporations. The acquisition of the shares of the MCC entities by Itaú Corpbanca is subject to the corresponding regulatory approvals, including approval from the Commission for the Financial Market. Participation increase in Nexus S.A. In accordance with exempt resolution No. 6,482 of September 13, 2019 the CMF authorized Banco Santander Chile to sell its 537,141 Nexus S.A. shares. Itaú Corpbanca is in the process of obtaining the approval of the Central Bank of Brazil to increase its participation in Nexus S.A., by acquiring the equivalent to 1.9% of ownership, whose approval is mandatory before executing the transaction. Further information on this transaction is disclosed in Note 39 - Subsequent Events. Acquisition of 20% ownership in Itaú Corredor de Seguros Colombia S.A. On November 5, 2019, Itaú Corpbanca committed to acquire 20% of the shares that Helm LLC holds in Itaú Corredor de Seguros de Colombia S.A. The acquisition of the shares of Itaú Corredor de Seguros de Colombia S.A. by Itaú Corpbanca, is subject to the corresponding regulatory approvals, including the approval from the Commission for the Financial Market. Note 23 - Contingencies, Commitments, and Responsibilities, continued b) Contingent loans and provisions The following table contains the amounts for which the Bank and its subsidiaries are contractually obliged to grant loans together with the relevant provisions: As of December 31, 2019 2018 MCh$ MCh$ Collateral and guarantees 548,521 411,023 Confirmed foreign letters of credit 509 — Letters of credit issued 97,553 95,476 Documented guarantees 1,501,957 1,286,805 Available on demand credit lines 2,623,744 2,143,333 Other credit commitments 1,167,802 1,447,277 Totals 5,940,086 5,383,914 For information on provisions for contingent loans, see Note 21, letter b. d) The Bank and its subsidiaries have the following responsibilities arising from their regular course of business: As of December 31, 2019 2018 MCh$ MCh$ Third party operations Collections 17,985 17,030 Transferred financial assets managed by the Bank 1,200,155 1,101,327 Third party funds under management 2,541,495 2,306,154 Subtotals 3,759,635 3,424,511 Custody of securities Securities held in custody 5,229,078 5,896,162 Securities held in custody deposited in other entities — 315,347 Securities issued by the Bank held in custody 131,648 148,193 Subtotals 5,360,726 6,359,702 Totals 9,120,361 9,784,213 e) Itaú Corredores de Seguros S.A. In order to comply with Article 58, letter d) of the Chilean Decree with Force of Law (“DFL”) 251 of 1930, which states that, “Insurance brokers, in order to conduct business, must comply with the requirement of contracting insurance policies as determined by the Commission for the Financial Market (Ex-Superintendency of Securities and Insurance), in order to correctly and fully comply with the obligations arising from its activities and especially regarding damages that may be incurred by insured parties taking policies through the brokerage house” the subsidiary has renewed the following insurance policies: Entity From To Amount (UF) Beneficiary Consorcio Nacional de Seguros S.A. 04-12-2019 04-12-2020 60,000 and 500 Itaú Corredores de Seguros S.A. Note 23 - Contingencies, Commitments, and Responsibilities, continued Itaú Corredores de Bolsa Limitada In order to comply with articles 30 and 31 of Chilean Law 18,045, this subsidiary kept a bank guarantee certificate with the Chilean Electronic Stock Exchange and Santiago Stock Exchange, to ensure the correct and complete fulfillment of its obligations as stockbroker. The beneficiaries are the current or future creditors that the subsidiary has or will have derived from its transactions. The detail of the bank guarantee certificate is as follows: Entity From To Amount (UF) Beneficiary Itaú Corpbanca Chile 04-23-2019 04-23-2020 16,000 Bolsa Electrónica de Chile Mapfre Compañía de Seguros S.A 04-23-2019 04-23-2020 4,000 Bolsa de Comercio de Santiago Itaú Corpbanca Chile 04-23-2019 04-23-2020 10,000 Comisión para el Mercado Financiero In addition, the company has taken out a comprehensive insurance policy to comply with Law No. 52 of the Chilean Electronic Stock Exchange. Amounts recorded with respect to the comprehensive insurance policy are as follows: Entity From To Amount (UF) Beneficiary Orión Seguros Generales S.A 05-29-2019 05-31-2020 5,000 and 10,000 Bolsa Electrónica de Chile The Company pledged the shares of the Santiago Stock Exchange in favor of said company, to guarantee compliance with the obligations with respect to transactions carried out with other brokers. The amount amounts to MCh$18,479 as of December 31, 2019 (MCh$12,630 as of December 31, 2018). The Broker is registered in the Registry of Portfolio Administrators since November 22, 2017, for which it maintains a guarantee ticket in Itaú Corpbanca with an expiration date of June 20, 2020, for an amount of UF 10,000 as representative of the beneficiaries of the guarantee in articles 98 and 99 of Law No. 20,172, in order to guarantee the faithful and full compliance of the Portfolio Administration obligations. There are guarantees for ThUS$100 equivalent to ThCh$75 and ThUS$30 equivalent to ThCh$23, to guarantee operations with foreign traders, Pershing and Corp FX respectively. The latter is a Chilean brokerage firm dedicated fundamentally to the purchase and sale, by itself or on behalf of third parties, of financial assets, and in general, the performance of all types of purchase and sale operations, arbitrage and/or any transaction or operation on any monetary and/or financial assets, including expressly the derivative contracts, whether swaps, forwards, options and/or arbitration, all with respect to any underlying asset, and also to receive the guarantees given in respect of the aforementioned contracts and operations, and to accept all types of mandate with respect to these, whatever the asset on which these guarantees are given. As of December 31, 2019, the Broker maintains in the Santiago Stock Exchange, cash and fixed income securities to guarantee operations in the Securities Clearing and Settlement House for MCh$9,067 (MCh$5,042 as of December 31, 2018). Note 23 - Contingencies, Commitments, and Responsibilities, continued Itaú Administradora General de Fondos S.A. Below are the guarantee slips and beneficiaries that Corpbanca Administradora General de Fondos S.A. maintains in effect to date, which were required to comply with the obligations of portfolio management contracts, their committees, Funds, payment of labor and social obligations with the contractor’s workers Entity From To Amount (UF) Amount (MCh$) Beneficiary Banco Santander Chile 06-02-2017 08-31-2021 15,000 — Corporación de Fomento de la Producción CORFO Banco Santander Chile 08-14-2017 08-30-2021 500 — Corporación de Fomento de la Producción CORFO Itaú Corpbanca 06-27-2019 07-01-2020 — 50 Ferrocarriles del Estado

Equity

Equity	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Equity	Note 24 - Equity a) Movements in equity accounts and reserves (attributable to the equity holders of the Bank): As of December 31, 2019, 2018 and 2017, the paid-in capital of the Bank is represented by common shares subscribed and paid, with no par value, and its motion presented below: Common shares 2019 2018 2017 (number) (number) (number) Issued as of January 1, 512,406,760,091 512,406,760,091 512,406,760,091 Issuance of paid shares — — — Increase in share for Itaú-Corpbanca business combination — — — Issuance of shares pending payment — — — Repurchase of own shares — — — Sale of own shares — — — Totals 512,406,760,091 512,406,760,091 512,406,760,091 · Subscribed and paid shares As of December 31, 2019, 2018 and 2017, the Bank has a capital in the amount of MCh$1,862,826, consisting of 512,406,760,091 common shares subscribed and paid, with no par value. · Purchase and sale of own shares During the years ended December 31, 2019 and 2018, there were no transactions to buy and sell shares of own issuance. Note 24 – Equity, continued · List of major shareholders The shareholders list as of December 31, 2019, 2018 and 2017, is as follows: Shares 2019 2018 2017 Number of Ownership Number of Ownership Number of Ownership Company name or shareholder name shares % shares % shares % Itaú Unibanco 195,408,043,473 38.14 % 195,408,043,473 38.14 % 184,756,488,453 36.06 % Itaú Unibanco Holding S.A. 115,039,610,411 22.45 % 115,039,610,411 22.45 % 115,039,610,411 22.45 % ITB Holding Brasil Participaçoes Ltda. 57,008,875,206 11.13 % 57,008,875,206 11.13 % 57,008,875,206 11.13 % CGB II SpA 10,908,002,836 2.13 % 10,908,002,836 2.13 % 10,908,002,836 2.13 % CGB III SpA 1,800,000,000 0.35 % 1,800,000,000 0.35 % 1,800,000,000 0.35 % Saga II SpA 7,000,000,000 1.37 % 7,000,000,000 1.37 % — — % Saga III SpA (1) 3,651,555,020 0.71 % 3,651,555,020 0.71 % — — % Saieh Family 146,394,540,608 28.57 % 146,394,540,608 28.57 % 157,046,095,628 30.65 % Corp Group Banking S.A. 136,127,850,073 26.57 % 136,127,850,073 26.57 % 136,127,850,073 26.57 % Compañía Inmobiliaria y de Inversiones Saga SpA (2) 10,266,690,535 2.00 % 10,266,690,535 2.00 % 20,918,245,555 4.08 % International Finance Corporation 17,017,909,711 3.32 % 17,017,909,711 3.32 % 17,017,909,711 3.32 % Others 153,586,266,299 29.97 % 153,586,266,299 29.97 % 153,586,266,299 29.97 % Stock brokers 63,397,824,244 12.37 % 55,791,614,655 10.89 % 53,400,666,996 10.42 % ADR holders and foreign investors 50,376,882,652 9.83 % 42,838,887,354 8.36 % 50,064,467,904 9.77 % Asset management companies 27,989,426,434 5.46 % 17,778,018,941 3.47 % 16,892,054,779 3.30 % Santo Domingo Group 11,822,132,969 2.31 % 9,817,092,180 1.92 % 9,817,092,180 1.92 % Insurance companies — — % 5,220,388,512 1.02 % 5,212,338,243 1.02 % Pension funds management companies — — % 3,981,075,117 0.77 % 944,399,401 0.18 % Other minority shareholders — — % 18,159,189,540 3.54 % 17,255,246,796 3.36 % Totals 512,406,760,091 100 % 512,406,760,091 100 % 512,406,760,091 100 % (1) Shares in custody of a third party. (2) Includes 640,844,096 shares in custody of a third party. b) At the Ordinary Meeting of the Shareholders of Itaú Corpbanca held on March 19, 2019, the shareholders agreed to distribute net income for MCh$51,614 representing 30% of the profits for 2018 (as filed with the CMF) and at an Ordinary Meeting of the Shareholders of Itaú Corpbanca held on March 27, 2018, the shareholders agreed to distribute profits for MCh$22,979, representing 40% of the 2017 net income (as filed with the CMF). See Note 39 “Subsequent events” for 2019 dividends distribution decision. Income Allocated to attributable to reserves and Dividend per equity holders retained Allocated to Percentage share Years (*) earnings (*) dividends distributed Number of shares (in pesos) MCh$ MCh$ MCh$ % Year 2018 (Shareholders’ Meeting March 2019) 172,047 120,433 51,614 0.30 512,406,760,091 0.10073 Year 2017 (Shareholders’ Meeting March 2018) 57,447 34,468 22,979 0.40 512,406,760,091 0.04485 (*) According to the Consolidated Financial Statements filed with the CMF. Note 24 – Equity, continued As of December 31, 2019 and 2018 and for the year ended December 31, 2019, 2018 and 2017, the basic earnings and diluted earnings are as follows: As of and for the years ended December 31, 2019 2018 2017 N° of Shares Amount N° of Shares Amount N° of Shares Amount Millions MCh$ Millions MCh$ Millions MCh$ Basic earnings per share Net income for the period — 113,684 — 171,331 — 67,821 Weighted average number of outstanding shares 512,407 — 512,407 — 512,407 — Assumed convertible debt conversion — — — — — — Adjusted number of outstanding shares 512,407 — 512,407 — — — Basic earnings per share (Chilean pesos) — 0.222 — 0.334 — 0.132 Diluted earnings per share Net income for the period — 113,684 — 171,331 — 67,821 Weighted average number of outstanding shares 512,407 — 512,407 — 512,407 — Dilutive effects Assumed convertible debt conversion — — — — — — Conversion of common shares — — — — — — Options rights — — — — — — Adjusted number of shares 512,407 — 512,407 512,407 — — Diluted earnings per share (Chilean pesos) — 0.222 — 0.334 — 0.132 During the years ended December 31, 2019, 2018 and 2017, there were no dilutive effects. c) Financial instruments at FVTOCI/available for sale investments: It includes accumulated net changes in the fair value of investments at FVTOCI for the year ended on December 31, 2019 and 2018. Available for sale investment accumulated changes in fair value up to December 31, 2017 until de investment is disposed of or there is a significant or prolonged decline in value. Hedge of net investment in foreign operations: Corresponds to adjustments for hedges of net investments in foreign operations. Cash flow hedge: It includes the effects of hedges on the Bank’s exposure to variations in cash flows that are attributed to a particular risk related to a recognized asset and/or liability, which may affect the results of the period. Exchange differences on investments in Colombia and New York branch: It includes the effects of converting the financial statements of the New York branch and Colombian subsidiaries, whose functional currencies are the US dollar and Colombian peso, respectively, to the presentation currency of Bank Itaú Corpbanca (Chilean peso). Defined benefits obligations: This includes the effects of complying with IAS 19 “ Employees Benefit ”. Note 24 – Equity, continued The following are the equity effects and income taxes for years ended December 31, 2019 and 2018: Exchange differences on Hedge of net investment in Debt investments in Colombia and Defined Equity instruments Cash flow foreign New York benefits instruments As of December 31, 2019 at FVTOCI hedge operations branch obligations at FVTOCI Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2019 16,459 5,559 29,403 (19,119) (3,236) 1,334 30,400 Effects for the period 21,025 (6,381) (46,786) 56,487 (3,248) 540 21,637 Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings — — — (40) — (135) (175) Ending balances as of December 31, 2019 37,484 (822) (17,383) 37,328 (6,484) 1,739 51,862 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2019 (6,904) (280) (7,746) — 689 — (14,241) Effects for the period (5,801) (185) 14,373 — 1,109 — 9,496 Ending balances as of December 31, 2019 (12,705) (465) 6,627 — 1,798 — (4,745) Net balances as of December 31, 2019 24,779 (1,287) (10,756) 37,328 (4,686) 1,739 47,117 Exchange differences on Hedge of net investment in Debt investments Colombia and Defined Equity instruments Cash flow in foreign New York benefits instruments As of December 31, 2018 at FVTOCI hedge operations branch obligations at FVTOCI Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2018 16,592 (5,730) 64,741 (57,485) (2,736) — 15,382 Changes due initial adoption IFRS 9 481 — — — — 1,015 1,496 Restated opening balances as of January 1, 2018 17,073 (5,730) 64,741 (57,485) (2,736) 1,015 16,878 Effects for the year (614) 11,289 (35,338) 38,366 (500) 319 13,522 Ending balances as of December 31, 2018 16,459 5,559 29,403 (19,119) (3,236) 1,334 30,400 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2018 (4,937) 1,389 (17,287) — 718 — (20,117) Changes due initial adoption IFRS 9 (499) — — — — — (499) Restated opening balances as of January 1, 2018 (5,436) 1,389 (17,287) — 718 — (20,616) Effects for the year (1,468) (1,669) 9,541 — (29) — 6,375 Ending balances as of December 31, 2018 (6,904) (280) (7,746) — 689 — (14,241) Net balances as of December 31, 2018 9,555 5,279 21,657 (19,119) (2,547) 1,334 16,159 Note 24 – Equity, continued Exchange differences on Hedge of net investment Available for investments in Colombia Defined sale Cash flow in foreign and New York benefits As of December 31, 2017 investments hedge operations branch obligations Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2017 10,372 (5,603) 14,917 2,380 (2,598) 19,468 Effects for the period 6,220 (127) 49,824 (59,865) (138) (4,086) Ending balances as of December 31, 2017 16,592 (5,730) 64,741 (57,485) (2,736) 15,382 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2017 (2,764) 1,345 (3,219) — 722 (3,916) Effects for the period (2,173) 44 (14,068) — (4) (16,201) Ending balances as of December 31, 2017 (4,937) 1,389 (17,287) — 718 (20,117) Net balances as of December 31, 2017 11,655 (4,341) 47,454 (57,485) (2,018) (4,735) d) This item corresponds to “Other non-earnings reserves” corresponding to the adjustments recorded as a result of the business combination between Banco Itaú Chile and Corpbanca for MCh$839,120 as of December 31, 2018 and MCh$744,838 as of December 31, 2019, and reserves from Banco Itaú Chile before the business combination for MCh$451,011 as of December 31, 2019 and 2018. e) Corresponds to retained earnings as of December 31, 2019 for a total of MCh$50,537, not distributed to shareholders, and accumulated losses as of December 31, 2018 for a total of MCh$69,355. f) This corresponds to the net amount of equity in the consolidated subsidiaries attributable to capital that does not belong, directly or indirectly, to the Bank, including the part of profit for the period that is attributed to them. Non-controlling interest in the subsidiary’s equity and profit for the year is detailed as follows: As of December 31, 2019 Other Comprehensive Income Hedge of Exchange net Financial differences investment Cash Defined Total other Total Non- Net instruments at on in foreign flow benefits Deferred comprehensive comprehensive Subsidiaries controlling Equity income FVTOCI (1) translation operations hedge obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguro Colombia S.A. 20.200 478 125 — — — — — — — 125 Itaú Corpbanca Colombia S.A. and subsidiaries (2) 12.900 93,967 10,713 952 17,368 — (411) (1,184) 331 17,056 27,769 Itaú Corredores de Seguros S.A. — — — — — — — — — — — Totals 94,445 10,838 952 17,368 — (411) (1,184) 331 17,056 27,894 (1) Financial instruments at FVOCI includes debt instruments for MCh$678 and equity instruments MCh$274. (2) On December 3, 2019, after obtaining regulatory approvals from banking supervisors in Chile, Colombia and Brazil, Itaú Corpbanca completed the acquisition of the Itaú Corpbanca Colombia shares owned by Helm LLC and Kresge Stock Holding Company Inc. As a result of these acquisitions, Itaú Corpbanca owns approximately 87.10% of the shares of Itaú Corpbanca Colombia. Note 24 – Equity, continued As of December 31, 2018 Other Comprehensive Income Hedge of Exchange net Financial differences investment Cash Defined Total other Total Non- Net instruments at on in foreign flow benefits Deferred comprehensive comprehensive Subsidiaries controlling Equity income FVTOCI (3) translation operations hedge obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguro Colombia S.A. 20.200 % 409 15 — — — — — — — 15 Itaú Corpbanca Colombia S.A. y filiales 33.721 % 217,673 (4,500) (664) 10,244 (1,195) — (254) 305 8,436 3,936 Itaú Corredores de Seguros S.A. (4) — % — 8 — — — — — — — 8 Itaú Administradora General de Fondos S.A. (5) — % — — — — — — — — — — Itaú Corpbanca Corredores de Bolsa Limitada (6) — % — — — — — — — — — — Totals 218,082 (4,477) (664) 10,244 (1,195) — (254) 305 8,436 3,959 (3) Financial instruments at FVOCI includes debt instruments for MCh$827 loss and equity instruments MCh$163 gain. As of December 31, 2017 Other Comprehensive Income Hedge of Exchange net Available differences investment Cash Defined Total other Non- Net for sale on in foreign Flow benefits Deferred comprehensive Comprehensive Subsidiaries controlling Equity income investments translation operations hedges obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguros S.A 20.200 % 380 (5) — — — — — — — (5) Itaú Corpbanca Colombia S.A 33.721 % 216,883 (5,001) 3,746 (18,437) (627) — (70) (1,305) (16,693) (21,694) Itaú Chile Corredores de Seguros Ltda. (4) 0.029 % 12 10 — — — — — — — 10 Itaú Administradora General de Fondos S.A. (5) 0.600 % 1 — — — — — — — — — Itaú Corpbanca Corredores de Bolsa Ltda. (6) — % 4 — — — — — — — — — Totals 217,280 (4,996) 3,746 (18,437) (627) — (70) (1,305) (16,693) (21,689) (4) On April 1, 2018, the merger of Corpbanca Corredores de Seguro S.A. and Itaú Chile Corredora de Seguros Limitada through the absorption of this last entity in the first took place, being its new name Itaú Corredores de Seguros S.A. On September 10, 2018, Itaú Corpbanca acquired 127,901 shares from minority investors. As a result, the Bank and its subsidiaries own a 100% of the Company shares. (5) On December 10, 2018, Itaú Corpbanca acquired 1 share from minority investors. As a result, the Bank and its subsidiaries own a 100% of the Company shares. (6) On July 4, 2018, Itaú Asesorías Financieras acquired 2 shares from minority investors. As a result, the Bank and its subsidiaries own a 100% of the Company shares. The following table shows the non-controlling interest movements for the year ended December 31, 2019, 2018 and 2017: As of December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Opening balances as of January 1, 218,082 217,280 238,969 Changes due to initial application of IFRS 9 — (3,157) — Restated opening balances as of January 1, 218,082 214,123 238,969 Increase participation in Colombia (151,531) — — Comprehensive income 27,894 3,959 (21,689) Ending balances as of December 31, 94,445 218,082 217,280 The main subsidiary with non-controlling interest of Itaú Corpbanca, is the following: As of December 31, 2019 2018 Group Non-controlling Group Non-controlling Entity Name Country participation participation participation participation Itaú Corpbanca Colombia S.A. and subsidiaries Colombia 87.10 % 12.90 % 66.28 % 33.72 % Note 24 – Equity, continued Summarized financial information for the main subsidiary with non-controlling interest, is as follows: As of December 31, Summary Statements of Financial Position 2019 2018 2017 MCh$ MCh$ MCh$ Current assets 5,383,819 4,669,275 4,589,487 Current liabilities (3,112,252) (3,523,186) (3,939,253) Net current assets (liabilities) 2,271,567 1,146,089 650,234 Non-current assets 1,174,958 1,664,700 1,690,890 Non-current liabilities (2,729,714) (2,160,781) (1,697,961) Net non-current assets (liabilities) (1,554,756) (496,081) (7,071) Total net assets (liabilities) 716,811 650,008 643,163 Accumulated non-controlling interest 93,967 217,673 216,883 For the years ended December 31, Summary Income Statements 2019 2018 2017 MCh$ MCh$ MCh$ Interest income and readjustments 528,150 553,937 579,176 Income of the period 16,490 (13,087) (14,830) Non-controlling interests income 10,713 (4,500) (5,001) For the years ended December 31, Summary Cash Flows Statements 2019 2018 2017 MCh$ MCh$ MCh$ Net cash flows provided by (used in) operating activities (359,168) 232,480 16,822 Net cash flows provided by (used in) investing activities 111,607 (145,665) (158,402) Net cash flows provided by (used in) financing activities 115,303 (24,122) 35,937 Net increase (decrease) in cash flows (132,258) 62,693 (105,643) Note 24 – Equity, continued g) Consolidated comprehensive income for the years ended December 31, 2019, 2018 and 2017 2019 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 113,684 10,838 124,522 Other comprehensive income (loss) before income taxes Debt instruments at fair value through other comprehensive income 21,025 678 21,703 Hedge of net investment in foreign operations (46,786) — (46,786) Cash flow hedge (6,381) (411) (6,792) Exchange differences 56,487 17,368 73,855 Changes in the fair value of equity investments at fair value through other comprehensive income 540 274 814 Defined benefits obligation (3,248) (1,184) (4,432) Subtotals 21,637 16,725 38,362 Income taxes Debt instruments at fair value through other comprehensive income (5,801) (125) (5,926) Hedge of net investment in foreign operations 14,373 — 14,373 Cash flow hedge (185) 23 (162) Defined benefits obligation 1,109 433 1,542 Subtotals 9,496 331 9,827 Other comprehensive income for the year 31,133 17,056 48,189 Comprehensive income for the year 144,817 27,894 172,711 2018 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 171,331 (4,477) 166,854 Other comprehensive income (loss) before income taxes Debt instruments at fair value through other comprehensive income (614) (827) (1,441) Net investment in foreign operations hedges (35,338) (1,195) (36,533) Cash flow hedges 11,289 — 11,289 Exchange differences 38,366 10,244 48,610 Changes in the fair value of equity investments at fair value through other comprehensive income 319 163 482 Defined benefits obligations (500) (254) (754) Subtotals 13,522 8,131 21,653 Income taxes Debt instruments at fair value through other comprehensive income (1,468) (704) (2,172) Net investment in foreign operations hedges 9,541 1,024 10,565 Cash flows hedges (1,669) — (1,669) Defined benefits obligations (29) (15) (44) Subtotals 6,375 305 6,680 Other comprehensive income (loss) for the year 19,897 8,436 28,333 Comprehensive income (loss) for the year 191,228 3,959 195,187 Note 24 – Equity, continued 2017 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 67,821 (4,996) 62,825 Other comprehensive income (loss) before income taxes Available for sale investments 6,220 3,746 9,966 Net investment in foreign operations hedges 49,824 (627) 49,197 Cash flow hedges (127) — (127) Exchange differences (59,865) (18,437) (78,302) Defined benefits obligations (138) (70) (208) Subtotals (4,086) (15,388) (19,474) Income taxes Available for sale investments (2,173) (1,160) (3,333) Net investment in foreign operations hedges (14,068) (143) (14,211) Cash flows hedges 44 — 44 Defined benefits obligations (4) (2) (6) Subtotals (16,201) (1,305) (17,506) Other comprehensive income (loss) for the year (20,287) (16,693) (36,980) Comprehensive income (loss) for the year 47,534 (21,689) 25,845

Interest Income and Interest Ex

Interest Income and Interest Expense	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Interest Income and Interest Expense	Note 25 - Interest Income and Interest Expense This item comprises interest accrued in the year by all financial assets and liabilities, interest income and expenses, whose implicit or explicit performance is measured by applying the effective interest rate method, independently if these are measured at fair value, as well as the effects from accounting hedges, which are part of the interest income and expenses included in the Consolidated Statement of Income for the year. a) The composition of interest income and inflation-indexing for the years ended December 31, 2019, 2018 and 2017 is as follows: For the years ended December 31, 2019 2018 2017 Inflation Inflation Inflation Interest adjustments (1) Totals Interest adjustments (1) Totals Interest adjustments (1) Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Investments under agreements to resell 4,996 (2) 4,994 4,988 — 4,988 6,643 2 6,645 Loans and receivables to banks 4,361 — 4,361 5,013 — 5,013 5,460 — 5,460 Commercial loans 850,212 119,461 969,673 816,193 115,468 931,661 872,416 68,729 941,145 Mortgage loans 202,945 107,352 310,297 196,598 107,364 303,962 188,094 59,149 247,243 Consumer loans 379,030 135 379,165 372,148 194 372,342 360,268 64 360,332 Financial investments 79,114 15,539 94,653 101,274 19,060 120,334 70,556 8,274 78,830 Other interest income 17,588 2,543 20,131 10,882 9,850 20,732 9,656 545 10,201 Gain (loss) from accounting hedges (*) (9,634) — (9,634) (19,715) — (19,715) (3,527) — (3,527) Totals 1,528,612 245,028 1,773,640 1,487,381 251,936 1,739,317 1,509,566 136,763 1,646,329 b) For the years ended December 31, 2019, 2018 and 2017, the detail of the amount of interest and inflation-indexation adjustment expense is as follows: For the years ended December 31, 2019 2018 2017 Inflation Inflation Inflation Interest adjustments (1) Totals Interest adjustments (1) Totals Interest adjustments (1) Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Deposits and other demand liabilities (52,181) (220) (52,401) (49,536) (141) (49,677) (72,732) (139) (72,871) Obligations under repurchase agreements (26,349) — (26,349) (29,660) (4) (29,664) (32,677) — (32,677) Time deposits and other time liabilities (369,048) (8,560) (377,608) (370,206) (15,528) (385,734) (420,190) (13,047) (433,237) Interbank borrowings (81,557) — (81,557) (69,054) (206) (69,260) (51,922) (2,463) (54,385) Debt instruments issued (212,346) (130,127) (342,473) (199,420) (122,832) (322,252) (210,104) (72,780) (282,884) Other financial liabilities (501) — (501) (752) — (752) (114) — (114) Lease obligations (5,034) (92) (5,126) — — — — — — Other Interest expense (79) (3,227) (3,306) (397) (4,292) (4,689) (556) (1,962) (2,518) Gain (loss) from hedge accounting (*) 16,099 — 16,099 10,374 — 10,374 15,339 — 15,339 Totals (730,996) (142,226) (873,222) (708,651) (143,003) (851,654) (772,956) (90,391) (863,347) (1) The inflation indexation adjustment is the result of changes in the Unidades de Fomento (“UF”). The UF is an inflation-index Chilean monetary unit with a value in Chilean pesos that changes daily to reflect changes in the Official Consumer Price Index (“CPI”) of the Instituto Nacional de Estadísticas (the Chilean National Institute of Statistics) for the previous month. The effect of any changes in the nominal peso value of our UF-denominated interest earning assets and interest bearing liabilities is reflected in our results of operations as an increase (or decrease, in the event of deflation) in interest income and expense respectively. · (*) The mark to market adjustments are presented in this line for hedging derivatives used in hedging of assets except in the case of foreign currency hedges and cash flow hedges (cross-currency), their all-in mark to market adjustment is included in the foreign exchange gain (losses) (see Note 28 “Net foreign exchange income (losses)”).

Fee and Commission Income and E

Fee and Commission Income and Expense	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Fee and Commission Income and Expense	Note 26 - Fee and Commission Income and Expense This item comprises the amount of all commissions accrued and paid in the year, except for those that form an integral part of the effective interest rate of the financial instruments. a) Fee and commission income This item comprises the financial income for the year corresponding to remunerations generated by the services rendered by the Bank and its subsidiaries and corresponds to the following items: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Fees and commissions from lines of credits and overdrafts 1,553 5,292 3,306 Fees and commissions from guarantees and letters of credit 15,147 15,317 14,776 Fees and commissions from card services 75,574 72,932 63,388 Fees and commissions from accounts management 15,406 11,512 12,024 Fees and commissions from collections and payments 23,921 20,359 25,359 Fees and commissions from brokerage and securities management 9,844 10,966 13,183 Fees and commissions from asset management 25,845 24,718 25,965 Compensation for insurance brokerage 35,783 36,693 26,096 Investment banking and advisory fees 20,657 19,403 8,162 Fees and commissions from student loans ceded 5,735 5,300 4,680 Commissions on loan transactions 893 651 2,560 Commissions for mortgage loans 1,300 1,486 1,112 Other fees from services rendered 10,321 10,982 12,088 Other commissions earned 2,217 2,345 3,721 Totals 244,196 237,956 216,420 b) Fee and commission expense This item includes expenses for commissions accrued during the year from operations, and corresponds to the following items: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Compensation for cards transactions (55,232) (35,676) (23,439) Fees and commissions for securities transactions (2,716) (2,963) (4,855) Commissions paid for foreign trade transactions (2,300) (2,550) (2,449) Commissions paid for customer loyalty program benefits (3,725) (2,607) (1,439) Commissions paid for services to customers management (3,905) (3,455) (3,157) Other commissions paid (1,914) (4,576) (3,510) Totals (69,792) (51,827) (38,849) Commissions earned on loans with mortgage finance bonds are recorded in the Consolidated Statement of Income under “Interest income.” Note 26 - Fee and Commission Income and Expense, continued c) Below are the income and expenses for commissions generated by segment and the revenue recognition calendar for ordinary activities, for the year ended December 31, 2019 according to IFRS 15. Revenue recognition calendar Segments for ordinary activities Transferred Transferred at a point in Accrual Chile Colombia Total over time time model MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fees and commissions from lines of credits and overdrafts 1,453 101 1,554 1,453 101 — Fees and commissions from guarantees and letters of credit 12,086 3,060 15,146 12,086 3,060 — Fees and commissions from card services 49,393 26,182 75,575 — 75,575 — Fees and commissions from accounts management 12,534 2,872 15,406 — 15,406 — Fees and commissions from collections and payments 15,651 8,271 23,922 — 10,385 13,537 Fees and commissions from brokerage and securities management 5,785 4,057 9,842 — 9,842 — Fees and commissions from asset management 15,727 10,118 25,845 — 25,845 — Compensation for insurance brokerage 35,783 — 35,783 — — 35,783 Investment banking and advisory fees 20,657 — 20,657 — 20,657 — Fees and commissions from student loans ceded 7,057 — 7,057 — 7,057 — Commissions on loan transactions 473 — 473 — 473 — Commissions for mortgage loans 753 — 753 — 753 — Other commissions earned 1,223 10,960 12,183 — 12,183 — Totals 178,575 65,621 244,196 13,539 181,337 49,320 Revenue recognition calendar Segments for ordinary activities Transferred Transferred at a point in Accrual Chile Colombia Total over time time model MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Compensation for cards transactions (29,950) (25,282) (55,232) — (55,232) — Fees and commissions for securities transactions (1,557) (1,159) (2,716) — (2,716) — Commissions paid for foreign trade transactions — — — — — — Commissions paid for customer loyalty program benefits — — — — — — Commissions paid for services to customers management — — — — — — Other commissions paid (4,625) (7,219) (11,844) — (11,844) — Totals (36,132) (33,660) (69,792) — (69,792) —

Net Income (Expense) from Finan

Net Income (Expense) from Financial Operations	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Net Income (Expense) from Financial Operations	Note 27 - Net Income (Expense) from Financial Operations This item includes the amount of changes in the fair value of financial instruments, except those attributable to interest accrued by applying the effective interest rate method, as well as the results obtained in the purchase and sale thereof. Net income (expense) from financial operations in the Consolidated Statements of Income for the year is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Trading instruments (securities) 17,287 2,527 43,323 Financial derivative contracts (trading) 77,040 152,732 (63,992) Sale of loans and accounts receivable from customers (*) 14,588 1,602 15,121 Net gain on sale of financial instruments at fair value through other comprehensive income 35,489 13,765 — Net gain on sale of available for sale investments — — 13,641 Others (770) 2,129 175 Totals 143,634 172,755 8,268 (*) See details Note 10, letter d.

Net Foreign Exchange Gain (Loss

Net Foreign Exchange Gain (Loss)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Net Foreign Exchange Gain (Loss)	Note 28 - Net Foreign Exchange Gain (Loss) This item includes the income earned from foreign currency trading, differences arising from converting monetary items in a foreign currency to the functional currency, and those generated by non-monetary assets in foreign currency at the time of their disposal. Net foreign exchange gains (losses) details are as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Net foreign exchange gain (loss) Gain (loss) on net foreign currency exchange positions 37,404 (64,278) 131,196 Other foreign currency exchange gains (losses) 4,128 5,421 1,537 Subtotals 41,532 (58,857) 132,733 Net exchange rate adjustments gain (loss) Adjustments for loans and accounts receivable from customers 702 93 (82) Adjustment for investment instruments — 105 (824) Adjustment for other assets and liabilities 2 (322) 1,385 Net gain (loss) from hedge accounting (14,610) 41,016 (87,047) Subtotals (13,906) 40,892 (86,568) Totals 27,626 (17,965) 46,165

Provisions for Impairment of Fi

Provisions for Impairment of Financial Assets	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Provisions for Impairment of Financial Assets	Note 29 - Provisions for Impairment of Financial Assets a) The movement registered in income for the year related to allowances and impairment due to credit risk, for the years ended December 31, 2019, 2018 and 2017, is summarized as follows: 2019 – According to IFRS 9 Financial Financial Interbank Loans and accounts receivable from customers at amortized cost instruments at instruments at Contingent 2019 loans Commercial Mortgage Consumer FVTOCI amortized cost loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loss for provisions established (507) (423,043) (35,031) (279,002) (2,223) (9) (25,577) (765,392) Income for provisions released 765 178,243 9,102 89,247 19 — 46,673 324,049 Recovery of loans previously charged-off — 22,213 2,791 33,661 — — — 58,665 Net charge to income 258 (222,587) (23,138) (156,094) (2,204) (9) 21,096 (382,678) 2018 – According to IFRS 9 Financial Financial Interbank Loans and accounts receivable from customers at amortized cost Instruments at instruments at Contingent 2018 loans Commercial Mortgage Consumer FVTOCI amortized cost loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loss for provisions established (344) (634,886) (78,185) (562,620) (25) — (14,511) (1,290,571) (*) Income for provisions released 131 474,192 78,873 380,294 411 50 28,354 962,305 (*) Recovery of loans previously charged-off — 19,921 2,588 25,959 — — — 48,468 Net charge to income (213) (140,773) 3,276 (156,367) 386 50 13,843 (279,798) 2017 – According to IAS 39 Loans and accounts receivable from customers Interbank Commercial Mortgage Consumer 2017 loans loans loans loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ Provisions established Individually assessed (226) (338,701) — — (338,927) Collectively assessed — (104,171) (63,699) (312,697) (480,567) Income (loss) for provisions established (226) (442,872) (63,699) (312,697) (819,494) (*) Provisions released Individually assessed 209 302,504 — — 302,713 Collectively assessed — 33,538 31,310 104,953 169,801 Income (loss) for provisions released 209 336,042 31,310 104,953 472,514 (*) Recovery of loans previously charged-off — 13,236 1,908 16,419 31,563 Net charge to income (17) (93,594) (30,481) (191,325) (315,417) (*)The amounts disclosed in the Consolidated Statements of Cash Flows are detailed below: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Charge to income for provisions established 765,392 1,290,571 819,494 Credit to income for provisions used (324,049) (962,305) (472,514) 441,343 328,266 346,980 Note 29 - Provisions for Impairment of Financial Assets, continued b) The detail by type of loans, analyzed collectively and individually, which were constituted and released by way of provision, is as follows: 2019 – According to IFRS 9 As of December 31, 2019 Note Provision established Provision released Totals MCh$ MCh$ MCh$ Commercial (423,043) 178,243 (244,800) Mortgage (35,031) 9,102 (25,929) Consumer (279,002) 89,247 (189,755) Subtotals 10 (737,076) 276,592 (460,484) Interbank loans, net 9 (507) 765 258 Totals (737,583) 277,357 (460,226) 2018 – According to IFRS 9 As of December 31, 2018 Note Provision established Provision released Totals MCh$ MCh$ MCh$ Commercial (634,886) 474,192 (160,694) Mortgage (78,185) 78,873 688 Consumer (562,620) 380,294 (182,326) Subtotals 10 (1,275,691) 933,359 (342,332) Interbank loans, net 9 (344) 131 (213) Totals (1,276,035) 933,490 (342,545) 2017 – According to IAS 39 As of December 31, 2017 Provisions established Provisions released Note Individual Group Totals Individual Group Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans (338,701) (104,171) (442,872) 302,504 33,538 336,042 Mortgage loans — (63,699) (63,699) — 31,310 31,310 Consumer loans — (312,697) (312,697) — 104,953 104,953 Subtotals 10 (338,701) (480,567) (819,268) 302,504 169,801 472,305 Interbank loans, net 9 (226) — (226) 209 — 209 Totals (338,927) (480,567) (819,494) 302,713 169,801 472,514

Personnel Salaries and Expenses

Personnel Salaries and Expenses	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Personnel Salaries and Expenses	Note 30 - Personnel Salaries and Expenses Personnel salaries expenses for the years ended December 31, 2019, 2018 and 2017 are as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Personnel compensation (181,431) (176,083) (174,029) Bonuses or gratifications (82,129) (84,754) (68,946) Compensation for years of service (12,830) (12,477) (18,803) Training expenses (825) (804) (734) Health and life insurance (2,910) (2,590) (3,487) Other personnel expenses (18,084) (18,039) (15,324) Totals (298,209) (294,747) (281,323)

Administrative Expenses

Administrative Expenses	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Administrative Expenses	Note 31 - Administrative Expenses For the years ended as of December 31, 2019, 2018 and 2017, the composition of this item is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Administrative expenses (177,919) (214,666) (217,130) Maintenance and repair of fixed assets (35,213) (31,673) (34,754) Office lease — (36,201) (36,482) Equipment lease — (2,925) (2,890) Insurance payments (16,389) (20,704) (22,624) Office supplies (1,679) (1,885) (2,228) IT and communications expenses (47,878) (43,667) (41,872) Utilities and other services (4,558) (4,443) (5,022) Security and transportation of securities services (5,232) (5,250) (4,691) Representation and personnel travel expenses (3,345) (3,612) (3,347) Legal and notarial expenses (20,384) (15,112) (9,546) Technical report fees (13,647) (11,626) (11,274) Professional services fees (1,656) (1,825) (2,358) Fees for classification of titles — (134) (1,613) Fines (1,947) (6,059) (75) ATM maintenance and management services (2,436) (2,630) (5,837) Temporary external services (1,032) (545) (812) Postage and mailing expenses (1,110) (1,341) (1,397) Internal events (648) (248) (666) Commercial programs (1,246) (1,242) (1,253) Credit card management services (4,051) (3,102) (4,363) Other administrative expenses (15,468) (20,442) (24,026) Subcontracted services (22,134) (22,303) (24,724) Data processing (12,990) (13,044) (14,733) Products sales — (275) (832) Others (9,144) (8,984) (9,159) Board of Directors compensation (1,350) (1,529) (1,394) Marketing and advertising (13,353) (14,384) (16,268) Real estate taxes, contributions and levies (34,125) (38,854) (46,106) Real estate taxes (286) (393) (671) Patents (1,206) (1,121) (1,430) Other taxes (*) (24,467) (29,324) (36,031) Contributions to SBIF (8,166) (8,016) (7,974) Totals (248,881) (291,736) (305,622) (*) These amounts primarily correspond to taxes other than income taxes that affect Itaú Corpbanca Colombia and its subsidiaries (Colombian segment). These are taxes on local financial transactions, ongoing performance of commercial activities or services, non-discountable value added tax and equity tax, among others.

Depreciation, Amortization, and

Depreciation, Amortization, and Impairment	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Depreciation, Amortization, and Impairment	Note 32 - Depreciation, Amortization, and Impairment a) Depreciation and amortization The amounts corresponding to charges to results for depreciation and amortization for the years ended December 31, 2019, 2018 and 2017, are detailed below: For the years ended December 31, Notes 2019 2018 2017 MCh$ MCh$ MCh$ Depreciation of property, plant and equipment 14 (21,169) (20,659) (19,370) Amortization of intangible assets 13 (74,140) (66,158) (62,475) Depreciation of assets for right-of-use assets 15 (31,857) — — Totals (127,166) (86,817) (81,845) b) Impairment For the years ended December 31, 2019, 2018 and 2017, the composition of this item is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Impairment of financial investments available-for-sale — — — Impairment of financial investments held-to-maturity — — — Subtotal financial assets — — — Impairment of property, plant and equipment (1) (489) (28) (27) Impairment of goodwill and intangibles (239) — — Subtotal Non-financial assets (728) (28) (27) Totals (728) (28) (27) (1) Corresponds to impairment for due to technological obsolescence caused by the current regulations (Decree N°222 of October 30, 2013 of the Ministry of the Interior and Public Security) applied to ATMs, which is in accordance with stipulated by IAS 36 Impairment of assets. The Bank has defined two CGUs: CGU Chile (Itaú Corpbanca and its Chileans subsidiaries and subsidiary allocated in New York) and CGU Colombia (Itaú Corpbanca Colombia and its subsidiaries and Itaú Corredores de Seguros S.A.). These CGUs were defined based on their main geographic areas. Their cash flow generation and performance are analyzed separately by Top management because their contributions to the consolidated entity may be identified independently. It is worth mentioning that these CGUs are consistent with the Bank’s operating segments (see Note 4). Carrying amount of these CGUs is as follows: As of December 31, CGU 2019 2018 MCh$ MCh$ Chile 2,366,517 2,600,114 Colombia 959,821 843,943 Note 32 - Depreciation, Amortization, and Impairment, continued 1. The Goodwill generated in the reverse acquisition mentioned in Note 1, section “General information background of Itaú Corpbanca and subsidiaries” was allocated in the following manner to the two identified CGUs 2 : As of December 31, Goodwill 2019 2018 MCh$ MCh$ Chile 904,868 904,868 Colombia 246,151 230,524 2. Consistent with the prior year, the recoverable amounts of CGU Chile and CGU Colombia have been determined using the dividend discount model. This methodology considers the cash flows that would be generated by dividends distributed to shareholders at perpetuity, discounted to their cost of capital rate as of the valuation date. Therefore, the economic value of equity can be estimated using cash flow projections derived from financial budgets and other assumptions approved by management. In testing goodwill for impairment, management considered different sources of information, including: · Historical information existing for both Banks post-merger and, if relevant, pre-merger. Historical information for events assessed as one-time and non-recurring was excluded. · Assumptions approved by management. · Information from external sources such as analyst reports, regulators, central Banks and press releases. · Observable market information such as rate curves, inflation and growth projections. · The competitive strategy defined for both Banks. The projected funding structure and its impact on the Bank’s capital requirements and internal policy 3. Key assumptions used in calculating the recoverable amount. The key assumptions used in calculating recoverable amount, defined as those variables to which the calculation is more sensitive, are presented below: As of December 31, 2019 2018 Chile Colombia Chile Colombia Perpetuity rate (%) 5.20 6.50 5.20 6.50 Projected inflation rate (%) 3.00 3.00 3.00 3.00 Discount rate (%) 10.00 11.30 10.59 11.99 Loans growth (%) 9.05 - 10.28 9.70 – 10.30 9.65 – 11.10 8.60 – 10.40 Solvency index limit (%) 11.40 – 12.40 10.60 – 14.00 12.50 – 14.70 11.50 – 4.00 2 Goodwill generated by the acquisition of a business abroad (Colombia case) is expressed in the functional currency of the aforementioned business (Colombian peso), converted at the closing exchange rate (exchange rate COP to CLP for the purpose of accounting registration. In Chile in accordance with IAS 21 "Effects of Changes in Exchange Rates of the Foreign Currency". (See Note 13). Note 32 - Depreciation, Amortization, and Impairment, continued i. When performing the goodwill impairment in 2019, cash flow projections are prepared for a period of 5 years from 2020 to 2024. After this period, the present value of cash flows for the year 2024 are calculated, projected to perpetuity using GDP growth rates expected for the markets in which the aforementioned CGUs operate. In 2017, management defined to project 6 years as it was consistent with the time needed to deploy the Corporate Integration plan, whose objective was to better capture the opportunities for creating value for the Bank. In this way, the strategy being implemented implied, in addition to the changes in the managerial staff and the operating models of both Banks, the change towards a new product mix, customer segmentation and medium and long-term objectives, consistent with the vision of becoming the third largest Bank in Chile. This transformation involved certain costs and other economic efforts in order to harness synergies starting in 2018. ii. Loans were projected considering an increase of around 9.92% per year in Chile and 10.00% in Colombia. Anticipated changes in the product mix were also modeled for both countries. The deposit portfolio was projected using target reciprocity. iii. Interest and fee income were projected in line with loans, modeling interest rates and commissions expected for each portfolio and type of product. Other relevant macroeconomic variables were also considered such as inflation and base interest rates. iv. The cost projections are mainly determined based on demand deposits and term deposits balances, considering an annual average ratio of 3.7% for Chile and 4.0% for Colombia. In the cost of funding, the Bank models the impact of the aforementioned reciprocity strategy with no significant changes in the funding structure. v. Estimated as the discount rate of the Cost of Capital (Ke) in local currency, which was used to discount the cash flows of each CGU. This calculation considers a premium for the risk of the country for each CGU. vi. The perpetuity growth rates are aligned with the growth of the economy in both jurisdictions. Consequently, these were built considering local inflation and GDP growth projections vii. The payment of dividends was made by maximizing the cash flows of the shareholder taking as a restriction that the solvency indicator (ratio of technical equity with risk-weighted assets) does not fall below the minimum limits required by the regulatory entities. In this way, a dividend for the CGU of Chile of 30% for the first 5 years and 50% in perpetuity was considered; and for the CGU Colombia of 30% and 55% respectively. Note 32 - Depreciation, Amortization, and Impairment, continued 4. Outcome of impairment testing As a result of the impairment testing process described above, management concludes that the recoverable amount of the CGUs exceeds their carrying amount, as shown in the following table: As of December 31, 2019 2018 Chile Colombia Chile Colombia Recoverable Amount / Carrying Value (%) 121.38 107.09 113.00 102.90 Consequently, management has not identified an impairment impact that has to be recognized in the financial statements. 5. Uncertainty and sensitivity of calculation to changes in key assumptions The estimates and judgments included in the calculations of recoverable amount are based on historical experience and other factors, including management’s expectations of future events considered reasonable based on current circumstances. However, the assumptions used are subject to a large degree of uncertainty and actual future results could differ from projections. For example: · The Bank considers that the operational integration of the banks in Chile will be completed in 2020. · The model for estimating the recoverable amount of the Colombian CGU assumed a recovery of the business from 2019 onward. · This, together with other measures, will result in growth of the various loan portfolios above industry averages. The Bank has sensitized discount and growth rates at perpetuity separately for CGU Colombia so that the Recoverable Amount (AR) of CGU Colombia is equal to its Carrying Value (CV): As of December 31, 2019 2018 Discount rates (%) 12.35 12.21 Perpetuity growth rate (%) 6.28 6.29 Management has considered and analyzed possible reasonable changes in key assumptions and has not identified other situations in which the Carrying Value exceeds the Recoverable Amount. Additionally, the ranges of the discount and growth rates in perpetuity of the CGU Colombia have been sensitized, separately, in both cases of 60 basis points As of December 31, 2019 2018 Discount rates (%) 11.30 11.99 Range (%) 10.70 – 11.90 11.39 – 12.59 Range (RA/CV) (%) 91.70 – 120.90 93.01 – 118.21 Perpetuity growth rate (%) 6.50 6.50 Range (%) 5.90 – 7.10 5.90 – 7.10 Range (RA/CV) (%) 93.37 – 118.71 94.72 – 116.05 Note 32 - Depreciation, Amortization, and Impairment, continued 6. Reconciliation of before and after taxes The Bank has used the cost of own capital (Ke) rate as a discount rate in its calculation of the recoverable amount, a rate that is observable after taxes. The following table shows the effect of considering the flows and the discount rate before taxes. As of December 31, 2019 2018 Chile Colombia Chile Colombia Discount rates (%) 13.22 18.08 Recoverable amount/Carrying value (%) 126.50 111.90

Other operating income and expe

Other operating income and expenses	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Other operating income and expenses	Note 33 - Other Operating Income and Expenses a) Other operating income The detail of other operating income is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Income from assets received in lieu of payment Gain on sales of assets received in lieu of payment 5,449 8,562 5,566 Other income 13,163 30 2,578 Subtotals 18,612 8,592 8,144 Other income Compensations from insurance companies 6 53 — Gain on sale of property, plant and equipment 2,248 5,519 14,119 Recovery of leased assets 73 1,349 522 Other operating income, subsidiaries 3,020 2,158 3,092 Gain on sale of leased assets 1,914 1,447 19 Other operating income 432 199 173 Revenue from insurance companies agreement 4,538 3,626 4,128 Other operating income, leases 267 724 446 Other income for recovery foreign expenses 747 620 420 Recoveries from expenses provisions 7,243 1,166 2,352 Other income 5,872 1,203 8,117 Subtotals 26,360 18,064 33,388 Totals 44,972 26,656 41,532 Note 33 - Other Operating Income and Expenses, continued b) Other operating expenses During the years ended December 31, 2019, 2018 and 2017, the Bank presents other operating expenses according to the following detail : For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Provisions for assets received in lieu of payment (18,062) (16,132) (14,472) Maintenance expenses for assets received in lieu of payment (1,663) (1,301) (714) Subtotal (19,725) (17,433) (15,186) Provisions for contingencies Other provisions for contingencies (507) (1,998) (586) Subtotals (507) (1,998) (586) Other expenses. Loss on sale of property, plant and equipment (655) (307) (1,099) Credit card loyalty point benefits expenses — (14,306) (13,238) Operating loss expenses (17,468) (10,589) (8,098) Insurance expense (law 20,027) (802) (622) (1,205) Provision expense for recovered leased assets (3,105) (4,170) (4,835) Expenses loss on sale of assets (9,386) — — Banking expenses (1,932) (2,450) (3,482) Fines and penalties (2,454) (13,110) (2,025) Loss on damaged assets (696) (2,311) (2,026) Other expenses (4,819) (903) (10,550) Subtotals (41,317) (48,768) (46,558) Totals (61,549) (68,199) (62,330) (*) For the year ended December 31, 2019, the Bank presents credit card loyalty benefits expenses amounting to MCh$7,515 in the Consolidated Statements of Income under Fee and commission expense.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Related Party Transactions	Note 34 - Related Party Transactions In accordance with the provisions set forth in the Chilean General Banking Law and the instructions issued by the Commission for the Financial Market, related parties are those individuals or corporations related to the ownership or management of the Institution directly or through third parties. Article 89 of the Ley de Sociedades Anónimas (Chilean Companies Law), which also applies to Banks, establishes that any transaction with a related party must be carried out on an arm’s length basis. In the case of sociedades anónimas abiertas (publicly traded companies) and their subsidiaries, transactions with related parties involve any negotiation, act, contract or transaction in which the company must intervene; the following are considered as parties related to them: those entities of the corporate Bank to which the company belongs; the corporations that, with respect to the company, have the status as parent, controlling entity, affiliate, subsidiary; the Directors, Managers, Administrators, Chief Executive Officer or Liquidators of the company, acting in their own names or on behalf of individuals other than the company, and their respective spouses or their relatives up to the second degree of consanguinity, as well as any entity controlled either directly or indirectly, through any of them; and any person who either acting individually or jointly with others with whom it has executed a joint operation agreement, may appoint at least one member of the management of the company or controls 10% or more of its capital stock, with the right to vote, in the case of a sociedad por acciones (stock corporation); those established by the bylaws of the company, or justifiably identified by the Directors’ Committee; and those in which it has acted as Director, Manager, Administrator, Chief Executive Officer or Liquidator of the company, during the last eighteen months. Article 147 of the Ley de Sociedades Anónimas (Chilean Companies Law) sets forth that a sociedad anónima abierta (publicly traded company) may only carry out transactions with related parties when they are intended to contribute to the corporate interest, are adjusted in the price, terms and conditions to those prevailing in the market at the time of their approval and comply with the requirements and the procedure indicated by it. Moreover, Article 84 of the Chilean General Banking Law establishes limits for the loans that may be granted to related parties and the prohibition to grant loans to the Directors, Managers or General Attorneys of the Bank. a) Loans granted to related parties As of December 31, 2019 and 2018, the loans granted to related persons are detailed below : As of December 31, 2019 As of December 31, 2018 Productive Investment Productive Investment companies companies Individuals companies companies Individuals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loans and accounts receivable from customers Commercial loans 109,840 11,910 5,054 170,873 64,073 3,960 Mortgage loans — — 29,419 — — 21,154 Consumer loans — — 8,987 — — 5,961 Gross loans and accounts receivable from customers 109,840 11,910 43,460 170,873 64,073 31,075 Allowance for loan losses (1,705) (134) (283) (2,550) (70) (63) Loans and receivables to customers, net 108,135 11,776 43,177 168,323 64,003 31,012 Note 34 - Related Party Transactions, continued b) Other transactions with related parties For the years ended December 31, 2019, 2018 and 2017, the Bank entered into the following transactions with related parties for amounts are detailed below: As of December 31, 2019 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Adexus S.A. Data transmission services — — 567 Bcycle Latam SPA Administrative consulting — — 1,518 CAI Gestion Inmobiliaria S.A. Department stores — — 3 Combanc S.A. Data transmission services — — 366 Comder Contraparte Central S.A Banking services — — 910 Compañía Chilena de Televisión S.A. Tv broadcasting services — — 47 Corp Group Holding Inversiones Limitada Advisory services — — 382 Corp Imagen y diseños S.A. Marketing — — 101 Corp Research S.A. Advisory services — — 474 Hotel Corporation of Chile S.A. Hotel, events — — 39 Inmobiliaria Edificio Corpgroup S.A. Office lease and building fees (*) (15,625) — 1,994 Inmobiliaria Gabriela S.A Other services — — 121 Inversiones Corp Group Interhold Ltda. Administrative consulting — — 2,537 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 46 248 Itaú Chile Inv. Serv. y Administración S.A. Leases (*) (441) — 220 Itaú Unibanco Business management reimbursement 349 2,051 — Operadora de Tarjeta de Crédito Nexus S.A. Credit card management — — 3,037 Pulso Editorial S.A. Publishing services — — 23 Redbanc S.A. ATM management — — 3,388 SMU S.A., Rendic Hnos. S.A. Lease of ATM (Note 17) 3,379 — 2,319 Transbank S.A. Credit card management — — 14,208 (*) As of 2019, due to the adoption of IFRS 16, leases are recognized as a financial obligation and a right-of-use asset. See Note 1 letter g). For disclosure purposes we have included the unpaid balance of the liability and the interest expense. These transactions were carried out at normal market prices prevailing at the day of the transactions. Note 34 - Related Party Transactions, continued As of December 31, 2018 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Adexus S.A. Data transmission services — — 254 Bcycle Latam SPA Administrative consulting — — 4,048 Bolsa de Comercio de Santiago Other services — — 204 CAI Gestion Inmobiliaria S.A. Department stores — — 103 Combanc S.A. Data transmission services — — 350 Comder Contraparte Central S.A Banking services — — 902 Corp Group Holding Inversiones Limitada Advisory services — — 408 Corp Imagen y diseños S.A. Marketing — — 99 Corp Research S.A. Advisory services — — 463 Everis Chile S.A. Advisory services — — 906 Hotel Corporation of Chile S.A. Hotel, events — — 94 Inmobiliaria Edificio Corpgroup S.A. Office lease and building fees — — 4,693 Instituto de Estudios Bancarios Guillermo Subercaseaux Education services — — 121 Inversiones Corp Group Interhold Ltda. Administrative consulting — — 2,476 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 93 706 Itaú Chile Inv. Serv. y Administración S.A. Leases — 204 141 Operadora de Tarjeta de Crédito Nexus S.A. Credit card management — — 2,909 Pulso Editorial S.A Publishing services — — 471 Redbanc S.A. ATM management — — 3,002 SMU S.A., Rendic Hnos. S.A. Lease of ATM (Note 17) 5,698 — 2,262 Transbank S.A. Credit card management — — 15,469 VIP Asesorias y Servicios Integrales Ltda. Advisory services — — 129 As of December 31, 2017 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Bcycle Latam SPA Other services — — 552 CAI Gestion Inmobiliaria S.A. Commercial home (Department stores) — — 115 Combanc S.A. Data transmission services — — 378 Comder Contraparte Central S.A Banking services — — 1,067 Corp Group Holding Inversiones Limitada Advisory services — — 398 Corp Imagen y diseños S.A. Other services — — 196 Corp Research S.A. Management advisory services — — 453 Everis Chile S.A. Advisory services — — 607 Hotel Corporation of Chile S.A. Accommodation, events — — 265 Inmobiliaria Edificio Corpgroup S.A. Corporate office rent and building cost — — 4,725 Instituto de Estudios Bancarios Guillermo Subercaseaux Education services — — 143 Inversiones Corp Group Interhold Ltda. Management advisory services — — 3,097 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 7,819 948 Itaú Chile Inv. Serv. y Administración S.A. Leases — — 650 Operadora de Tarjeta de Crédito Nexus S.A. Credit Card processing — — 3,836 Promoservice S.A. Promotion services — — 267 Pulso Editorial S.A Publishing services — — 509 Redbanc S.A. ATM management — — 3,355 SMU S.A., Rendic Hnos. S.A. Prepaid rent for space for ATMs 7,960 — 2,221 Transbank S.A. Credit card management — — 14,586 VIP Asesorias y Servicios Integrales Ltda. Advisory services — — 415 These transactions were carried out at normal market prices prevailing at the day of the transactions. Note 34 - Related Party Transactions, continued c) Donations For the years ended December 31, Name or corporate name Description 2019 2018 2017 MCh$ MCh$ MCh$ Fundación Corpgroup Centro Cultural Donations 1,325 1,225 1,302 Fundación Descúbreme Donations 194 200 Fundación Itaú Donations 157 167 Fundación de Inclusión Social Aprendamos Donations — — 5 d) Other assets and liabilities with related parties. As of December 31, 2019 2018 MCh$ MCh$ ASSETS 28,474 26,854 Derivative financial instruments 27,458 25,708 Other assets 1,016 1,146 LIABILITIES 420,273 188,057 Derivative financial instruments 1,565 860 Current accounts and demand deposits 34,416 30,466 Time deposits and saving accounts 354,794 145,995 Other liabilities 29,498 10,736 e) Results of transactions with related parties For the years ended December 31, 2019 2018 2017 Type of recognized income or expense Income Expenses Income Expenses Income Expenses MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income and interest expenses and readjustments 11,269 7,328 3,748 2,970 10,146 4,902 Income and expenses for commissions and services 3,232 — 829 — 5,227 — Profit and loss from trading 2,585 888 1,146 501 2,333 1,534 Operational support expenses 901 — 1,075 — 537 99 Other income and expenses 207 327 84 222 216 390 Totals 18,194 8,543 6,882 3,693 18,459 6,925 Note 34 - Related Party Transactions, continued f) Payments to Board of Directors and key management personnel. Compensation received by key personnel of Management correspond to the following categories: As of December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Short-term employee benefits 31,364 31,892 27,759 Post-employment benefits — — — Other long-term benefits — — — Compensation for termination of contract 799 1,337 3,471 Totals 32,163 33,229 31,230 As of December 31, 2019, the total compensation received during 2019 by the managers and top executives of Itaú Corpbanca amounts to MCh$23,315 (MCh$22,185 million as of December 31, 2018). g) Conformation of key personnel Compensation received by directors and key management personnel is categorized as follows: Number of executives As of December 31, Position 2019 2018 Board Member 14 21 Chief Executive Officer 10 16 Corporate Director 39 50 Area Manager 161 194 Manager 143 163 h) Transactions with key personnel The following transactions with key personnel have been performed during the years ended December 31, 2019 and As of December 31, 2019 2018 MCh$ MCh$ Credits cards 89 Consumer loans 339 Commercial loans 536 Mortgage loans 2,325

Fair Value of Financial Assets

Fair Value of Financial Assets and Liabilities	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Fair Value of Financial Assets and Liabilities	Note 35 - Fair Value of Financial Assets and Liabilities This disclosure was prepared based on the guidelines “Fair Value of Financial Instruments” from the IFRS 13 “Fair Value Measurements”. The following section details the main guidelines and definitions used by the Bank: Fair value: 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 (i.e. an exit price). The transaction is carried out in the principal or most advantageous market and is not forced (i.e. it does not consider factors specific to the Bank that may influence a real transaction). Market participants: Buyers and sellers in the principal (or most advantageous) market for the asset or liability that have all of the following characteristics: · They are independent of each other, i.e. they are not related parties as defined in IAS 24 “Related Party Disclosures,” although the price in a related party transaction may be used as an input to a fair value measurement if the entity has evidence that the transaction was entered into at market terms. · They are knowledgeable, having a reasonable understanding about the asset or liability and the transaction using all available information, including information that might be obtained through due diligence efforts that are usual and customary. · They are able to enter into a transaction for the asset or liability. · They are willing to enter into a transaction for the asset or liability (i.e. they are motivated, but not forced or otherwise compelled, to do so). Fair value measurement: When measuring fair value, the Bank takes into account the same characteristics of the asset or liability that market participants would consider in pricing that asset or liability on the measurement date. Aspects of the transaction: A fair value measurement assumes that the asset or liability is exchanged in an orderly transaction between market participants to sell the asset or transfer the liability at the measurement date under current market conditions. The measurement assumes that the transaction to sell the asset or transfer the liability takes place: (a) on the principal market for the asset or liability; or (b) in the absence of a principal market, on the most advantageous market for the asset or liability. Market participants: The fair value measurement measures the fair value of the asset or liability using the assumptions that the market participants would use in pricing the asset or liability, assuming that the participants act in their best economic interest. Prices: Fair value is the price that will be received for the sale of an asset or paid for the transfer of a liability in an orderly transaction on the main (or most advantageous) market as of the measurement date under current market conditions (i.e. exit price) regardless of whether that price is directly observable or estimated using another valuation technique. Note 35 - Fair Value of Financial Assets and Liabilities, continued Highest and best use of non-financial assets: The fair value measurement of these assets takes into account the market participant’s ability to generate economic benefits through the highest and best use of the asset or through the sale of the asset to another market participant that would maximize the value of the asset. Bank’s own liabilities and equity instruments: The fair value measurement assumes that these items are transferred to a market participant on the date of measurement. The transfer of these items assumes that: a) A liability would remain outstanding and the market participant transferee would be required to fulfill the obligation. The liability would not be settled with the counterparty or otherwise extinguished on the measurement date. b) An entity’s own equity instrument would remain outstanding and the market participant transferee would take on the rights and responsibilities associated with the instrument. The instrument would not be cancelled or otherwise extinguished on the measurement date. Default risk: The fair value of a liability reflects the effect of the default risk. This risk includes, but is not limited to, the entity’s own credit risk. This risk is assumed to be the same before and after the liability is transferred. Initial recognition: When an asset is acquired or a liability assumed in an exchange transaction involving that asset or liability, the transaction price is the price paid to acquire the asset or received to assume the liability (the entry price). In contrast, the fair value of the asset or liability is the price received to sell the asset or paid to transfer the liability (the exit price). Entities do not necessarily sell assets at the prices paid to acquire them. Likewise, they do not necessarily transfer liabilities at the price received to assume them. Valuation techniques: The Bank will use techniques that are appropriate for the circumstances and for which sufficient data is available to measure the fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. The following approaches deserve mention: a) Market approach . Uses prices and other relevant information generated by market transactions involving identical or comparable (similar) assets, liabilities, or a Bank of assets and liabilities (e.g. a business). b) Income approach . Converts future amounts (cash flows or income and expenses) to a single current (discounted) amount, reflecting current market expectations about those future amounts. The fair value measurement is determined based on the value indicated by the current market expectations about those future amounts. c) Cost approach . Reflects the amount that would be required currently to replace the service capacity of an asset (current replacement cost). Present value techniques: Technique to adjust the discount rate and expected cash flows (expected present value). The present value technique used to measure the fair value will depend on the specific facts and circumstances of the asset or liability being measured and the availability of sufficient data. Components of the present value measurement: Present value is the tool used to link future amounts (e.g. cash flows or values) to a present amount using a discount rate. A fair value measurement of an asset or a liability using a present value technique captures all the following elements from the perspective of market participants at the measurement date: a) An estimate of future cash flows for the asset or liability being measured. b) Expectations about possible variations in the amount and timing of the cash flows representing the uncertainty inherent in the cash flows. Note 35 - Fair Value of Financial Assets and Liabilities, continued c) The time value of money, represented by the rate on risk-free monetary assets that have maturity dates or durations that coincide with the period covered by the cash flows and pose neither uncertainty in timing nor risk of default to the holder (i.e. a risk-free interest rate). d) The price for bearing the uncertainty inherent in the cash flows (i.e. a risk premium). e) Other factors that market participants would take into account in the circumstances. f) For a liability, the non-performance risk relating to that liability, including the entity’s (i.e. the debtor’s) own credit risk. Fair value hierarchy : Gives the highest priority to quoted prices (unadjusted) in active markets for identical assets and liabilities (Level 1 inputs) and lowest priority to unobservable inputs (Level 3 inputs). Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. The following tables summarizes the fair values of the Bank’s main financial assets and liabilities as of December 31, 2019 and 2018, including those that are not recorded at fair value in the Consolidated Statement of Financial Position. Determination of the fair value as of December 31, 2019 and 2018 As of December 31, 2019 Estimated fair value Book value Recurring Non-recurring (*) MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 — 1,009,681 Cash items in process of collection 231,305 — 231,305 Financial instruments at fair value through profit or loss 183,702 183,702 — Financial instruments at fair value through other comprehensive income 3,598,890 3,598,890 — Loans and accounts receivable at amortized cost 22,254,697 — 23,313,453 Financial instruments at amortized cost 115,658 — 114,175 Investments under resale agreements 75,975 — 75,975 Financial derivative contracts 3,154,957 3,154,957 — Interbank loans, net 56,396 — 56,396 Totals 30,681,261 6,937,549 24,800,985 LIABILITIES Deposits and other demand liabilities 4,873,448 — 4,873,448 Cash in process of being cleared 164,573 — 164,573 Obligations under repurchase agreements 559,457 — 559,457 Time deposits and other time liabilities 11,620,187 — 11,692,076 Financial derivative contracts 2,938,034 2,938,034 — Interbank borrowings 2,646,756 — 2,646,176 Debt instruments issued 6,408,356 — 7,244,551 Lease contract liabilities 172,924 — 175,263 Other financial liabilities 12,966 — 12,966 Totals 29,396,701 2,938,034 27,368,510 (*) Non-recurring items correspond to those line items that are carried at cost, but their corresponding fair value has been estimated for disclosure purposes only. Note 35 - Fair Value of Financial Assets and Liabilities, continued As of December 31, 2018 Estimated fair value Book value Recurring Non-recurring MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 987,680 — 987,680 Cash items in process of collection 318,658 — 318,658 Financial instruments at fair value through profit or loss 96,943 96,943 — Financial instruments at fair value through other comprehensive income 2,657,154 2,657,154 — Loans and accounts receivable at amortized cost 20,714,370 — 20,827,852 Financial instruments at amortized cost 198,923 — 199,561 Investments under resale agreements 109,467 — 109,467 Financial derivative contracts 1,368,957 1,368,957 — Interbank loans, net 341,244 — 341,244 Totals 26,793,396 4,123,054 22,784,462 LIABILITIES Deposits and other demand liabilities 4,300,475 — 4,300,475 Cash in process of being cleared 247,165 — 247,165 Obligations under repurchase agreements 1,015,614 — 1,015,614 Time deposits and other time liabilities 10,121,111 — 10,135,722 Financial derivative contracts 1,112,806 1,112,806 — Interbank borrowings 2,327,723 — 2,335,509 Debt instruments issued 6,010,124 — 6,311,527 Other financial liabilities 12,400 — 12,400 Totals 25,147,418 1,112,806 24,358,412 Fair Value Measurements of assets and liabilities only for disclosure purposes (non-recurring) : As of December 31, Non-recurring fair value measurement 2019 2018 MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 987,680 Cash items in process of collection 231,305 318,658 Loans and accounts receivable at amortized cost 23,313,453 20,827,852 Investments under resale agreements 75,975 109,467 Interbank loans, net 56,396 341,244 Financial instruments at amortized cost 114,175 199,561 Totals 24,800,985 22,784,462 LIABILITIES Deposits and other demand liabilities 4,873,448 4,300,475 Cash in process of being cleared 164,573 247,165 Obligations under repurchase agreements 559,457 1,015,614 Time deposits and other time liabilities 11,692,076 10,135,722 Interbank borrowings 2,646,176 2,335,509 Debt issued 7,244,551 6,311,527 Lease contract liabilities 175,263 — Other financial obligations 12,966 12,400 Totals 27,368,510 24,358,412 Note 35 - Fair Value of Financial Assets and Liabilities, continued The following section describes the methods used to estimate fair value: Cash, short-term assets and short-term liabilities The fair value of these items approximates their book value given their short-term nature. These items include: · Cash and deposits in Banks · Cash in the process of collection · Financial instruments at fair value through profit or loss · Trading investments · Current accounts and demand deposits · Other financial obligations Loans The fair value of loans is determined using a discounted cash flow analysis, using a risk-free interest rate adjusted for expected losses from debtors based on their credit quality. The credit risk adjustment is based on the Bank’s credit risk policies and methodologies: These items include: · Interbank loans · Loans and receivables from customers Financial instruments held to maturity The estimated fair value of these financial instruments is determined using quotes and transactions observed in the main market for identical instruments, or in their absence, for similar instruments. Fair value estimates of debt instruments or securities representative of debt take into account additional variables and inputs to the extent that they apply, including estimates of prepayment rates and the credit risk of issuers. Financial instruments held to maturity The estimated fair value of these financial instruments is determined using quotes and transactions observed in the main market for identical instruments, or in their absence, for similar instruments. Fair value estimates of debt instruments or securities representative of debt take into account additional variables and inputs to the extent that they apply, including estimates of prepayment rates and the credit risk of issuers. Medium and long-term liabilities The fair value of medium and long-term liabilities is determined using a discounted cash flow analysis, using an interest rate curve that reflects current market conditions at which the entity’s debt instruments are traded. Medium and long-term liabilities include: · Time deposits and saving accounts · Borrowings from financial institutions · Debt issued Note 35 - Fair Value of Financial Assets and Liabilities, continued Fair Value measurement of financial assets and liabilities (recurring) -: As of December 31, Fair value measurement of recurring items 2019 2018 MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 96,943 Central Bank of Chile and Government securities 80,898 36,608 Other securities issued in Chile 23,123 4,017 Foreign government and Central Bank instruments 67,088 23,276 Other instruments issued abroad 4,390 19,505 Investments in mutual funds 5,903 3,532 Other investments at FVTPL 2,300 10,005 Financial instruments at fair value through other comprehensive income 3,598,890 2,657,154 Central Bank of Chile and Government securities 2,174,278 1,352,084 Other securities issued in Chile 536,576 196,439 Foreign government and Central Bank instruments 165,927 769,693 Other instruments issued abroad 716,423 332,560 Other investments at FVOCI 5,686 6,378 Financial derivative contracts 3,154,957 1,368,957 Forwards 454,300 342,993 Swaps 2,696,635 1,021,701 Call options 3,805 4,217 Put options 217 46 Others — — Total 6,937,549 4,123,054 LIABILITIES Financial derivative contracts 2,938,034 1,112,806 Forwards 504,275 322,241 Swaps 2,431,436 788,133 Call options 1,758 1,493 Put options 565 939 Total 2,938,034 1,112,806 Financial Instruments The estimated fair value of these financial instruments is determined using quotes and transactions observed in the main market for identical instruments, or in their absence, for similar instruments. Fair value estimates of debt instruments or securities representative of debt take into account additional variables and inputs to the extent that they apply, including estimates of prepayment rates and the credit risk of issuers. These financial instruments are classified as follows: · Trading portfolio financial assets · Financial investments available for sale Note 35 - Fair Value of Financial Assets and Liabilities, continued Financial Derivative Instruments The estimated fair value of derivative instruments is calculated using prices quoted in the market for financial instruments with similar characteristics. Therefore, the methodology recognizes the credit risk of each counterparty. The adjustments are known internationally as the counterparty value adjustment (“CVA”), which consists of an adjustment for debtor risk (credit value adjustment or CVA) and for creditor risk (debit value adjustment or “DVA”). The sum of these adjustments gives the effective counterparty risk that the derivative contract must have. These adjustments are recorded periodically in the financial statements. As of December 2018, 2017 and 2016, the portfolio of derivative contracts in both Chile and Colombia is detailed as follows: As of December 31, 2019 2018 2017 CVA DVA CVA DVA CVA DVA MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedging (2) 1 — — (2) 815 Fair value hedge — — — — (11) 783 Currency forwards — — — — — — Currency swaps — — — — (5) 222 Interest rate swaps — — — — (6) 561 Cash flow hedge (2) 1 — — 1 54 Currency forwards (2) 1 — — (1) (13) Currency swaps — — — — — 27 Interest rate swaps — — — — 2 40 Hedge of net investments in a foreign operation — — — — 8 (22) Currency forwards — — — — 8 (22) Currency swaps — — — — — — Interest rate swaps — — — — — — Derivatives held for trading (28,172) 446 (37,821) 340 (53,396) 554 Currency forwards (341) 123 (127) 65 (258) (724) Currency swaps (4,642) 295 (31,167) 127 (42,829) 367 Interest rate swaps (23,189) 28 (6,527) 148 (10,244) 911 Call currency options — — — — — — Put currency options — — — — (65) — Total financial derivative contracts (28,174) 447 (37,821) 340 (53,398) 1,369 Note 35 - Fair Value of Financial Assets and Liabilities, continued Fair value hierarchy IFRS 13 establishes a fair value hierarchy that classifies assets and liabilities based on the characteristics of the data that the technique requires for its valuation: Level 1: Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Entity can access at the measurement date. The inputs needed to value the instruments in this category are available daily and used directly. In the case of currency, shares and mutual funds, prices are observed directly in over-the-counter (OTC) markets and the stock exchange. These prices correspond to the values at which the exact same assets are traded. As a result, the portfolio valuation does not require assumptions or models of any type. For instruments issued by the Chilean Central Bank and the Chilean Treasury, a price provider is used, which corresponds to a public quotation. The comparative prices are defined under the criterion of similarity in duration, type of currency and they are traded equivalently on a daily basis. The valuation of these instruments is identical to the Stock Exchange Comercio de Santiago, which is a standard and international methodology. This methodology uses the rate of internal return to discount the flows of the instrument. Level 2: The specific instrument does not have daily quotes. However, similar instruments can be observed (e.g. same issuer, different maturity; or different issuer, same maturity and risk rating). In general, they are diverse combinations of pseudo-arbitration. Although the inputs are not directly observable, observable inputs are available with the needed periodicity. In this category, instruments are valued by discounting contractual cash flows based on a zero-coupon curve determined through the price of instruments with similar characteristics and a similar issuer risk. The income approach is used, which converts future amounts to present amounts. For derivative instruments within this category, quotes from over-the-counter (OTC) transactions reported by the most important brokers in the Chilean market and the Bloomberg platform are used. The inputs observed include forward prices, interest rates and volatilities. Based on these inputs, market curves are modeled. They are a numerical representation of the opportunity costs of the instrument’s cash flows or the price volatility of an asset. Finally, cash flows are discounted. The Black and Scholes model is used for options based on prices of brokers in the Over-The-Counter market. For money market instruments, prices of transactions on the Santiago Stock Exchange are observed and used to model market curves. For corporate or Bank bonds, given the lack of market depth, the Bank uses transactions (if any) in the Chilean market, on foreign markets, zero-coupon curves of risk-free instruments, adjustment curves, spread modeling, correlation with similar financial instruments, etc. and creates market curves for use in the final result. These market curves are provided by a pricing supplier and are widely accepted by the market, regulators and scholars. Note 35 - Fair Value of Financial Assets and Liabilities, continued Level 3: Inputs are unobservable inputs for the asset or liability. This is used when prices, data or necessary inputs are not directly or indirectly observable for similar instruments for the asset or liability as of the valuation date. These fair value valuation models are subjective in nature. Therefore, they base their estimate of prices on a series of assumptions that Management believes are commonly used by the financial services industry. The Bank has two products in this category. · Due to the lack of liquidity of the active Banking rate (TAB), the price is not observable and, therefore, models must be used to estimate the future cash flows of the contract. This spread is calculated on a historical basis using the Interest Rate Swap with the greatest market depth. · In addition, the Bank develops American forwards to meet its customers’ needs. They do not have a secondary market and, therefore, their value is estimated using an extension of the Hull-White model, used widely by the financial services industry. None of these products generate significant impacts on the Bank’s results as a result of recalibration. The TAB swap does not have significant impacts on the valuation as the parameters are stable and the reversal to a historic average is empirically quick, which this model reflects correctly. On the other hand, the American forward behaves like a traditional forward when there is an important curve differential, which is the case between the Chilean peso-US dollar curve. Also, the model’s parameters are very stable. The table below summarizes the impacts on the portfolio of a recalibration of the models based on a stress scenario, recalibrating parameters with the shock incorporated. As of December 31, 2019 As of December 31, 2018 Forward Forward Americano Basis TAB Basis TAB Americano Basis TAB Basis TAB Impact calibration USD-CLP CLP CLF USD-CLP CLP CLF MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Volatility exchange rate USD-CLP — — — — — — TAB 30 — 98 — — 116 — TAB 90 — 4 — — 26 — TAB 180 — 39 18 — 50 21 TAB 360 — — 4 — 3 5 Totals — 141 22 — 195 26 Note 35 - Fair Value of Financial Assets and Liabilities, continued The following table summarizes the fair value hierarchy for the Bank’s recurring valuation of financial instruments: Level Instrument Issuer Price Source Model I Currencies Not Applicable OTC, Bloomberg Directly observable price. Shares Various Stock Exchange Directly observable price. Mutual Funds Asset Managers CMF (formerly the SVS) Directly observable price. Bonds Chilean Central Bank and Chilean Treasury Stock Exchange Internal rate of return (“IRR”) based on prices. II Derivatives Not Applicable OTC (brokers), Bloomberg Interest rate curves based on forward prices and coupon rates. Money market instruments Chilean Central Bank and Chilean Treasury Stock Exchange Interest rate curves based on prices. Money market instruments Banks Stock Exchange Interest rate curves based on prices. Bonds Companies, Banks Pricing provider Interest rate curves based on correlations, spreads, interpolations, etc. III Derivatives, active Banking rate (TAB) Not Applicable OTC (brokers) Interest rate curves based on modeling of TAB-Chamber spread. Derivatives, American forwards Not Applicable Bloomberg Black and Scholes with inputs from European options. Note 35 - Fair Value of Financial Assets and Liabilities, continued The following table classifies assets and liabilities measured at fair value on a recurring basis, in accordance with the fair value hierarchy established in IFRS 13, as of December 31, 2019 and 2018 : As of December 31, 2019 Market value of the Other observable Non-observable Measurement at fair value of instruments asset for identified assets significant inputs significant inputs on a recurring basis using Fair value (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 177,009 6,693 — Central Bank of Chile and Government securities 80,898 80,898 — — Other securities issued locally 23,123 23,120 3 — Foreign government and Central Bank instruments 67,088 67,088 — — Other securities issued abroad 4,390 — 4,390 — Investments in mutual funds 5,903 5,903 — — Other investments at FVTPL 2,300 — 2,300 — Financial instruments at fair value through other comprehensive income 3,598,890 3,009,607 589,283 — Central Bank of Chile and Government securities 2,174,278 2,174,278 — — Other securities issued locally 536,576 — 536,576 — Foreign government and Central Bank instruments 165,927 165,927 — — Other securities issued abroad 716,423 669,402 47,021 — Other investments at FVOCI 5,686 — 5,686 — Financial derivative contracts 3,154,957 — 3,127,525 27,432 Forwards 454,299 — 449,239 5,060 Swaps 2,696,636 — 2,674,264 22,372 Call options 3,805 — 3,805 — Put options 217 — 217 — Totals 6,937,549 3,186,616 3,723,501 27,432 LIABILITIES Financial derivative contracts 2,938,034 — 2,936,915 1,119 Forwards 504,275 — Swaps 2,431,436 — Call options 1,758 — — Put options 565 — — Totals 2,938,034 — 2,936,915 1,119 Note 35 - Fair Value of Financial Assets and Liabilities, continued As of December 31, 2018 Market value of the Other observable Non-observable Measurement at fair value of instruments asset for identified assets significant inputs significant inputs on a recurring basis using Fair value (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 96,943 67,430 29,513 — Central Bank of Chile and Government securities 36,608 36,608 — — Other securities issued locally 4,017 4,014 3 — Foreign government and Central Bank instruments 23,276 23,276 — — Other securities issued abroad 19,505 — 19,505 — Investments in mutual funds 3,532 3,532 — — Other investments at FVTPL 10,005 — 10,005 — Financial instruments at fair value through other comprehensive income 2,657,154 2,458,410 198,744 — Central Bank of Chile and Government securities 1,352,084 1,352,084 — — Other securities issued locally 196,439 5,979 190,460 — Foreign government and Central Bank instruments 769,693 769,693 — — Other securities issued abroad 332,560 330,654 1,906 — Other investments at FVOCI 6,378 — 6,378 — Financial derivative contracts 1,368,957 — 1,341,801 27,156 Forwards 342,993 — 342,375 618 Swaps 1,021,701 — 995,163 26,538 Call options 4,217 — 4,217 — Put options 46 — 46 — Totals 4,123,054 2,525,840 1,570,058 27,156 LIABILITIES Financial derivative contracts 1,112,806 — 1,112,237 569 Forwards 322,241 — 322,192 49 Swaps 788,133 — 787,613 520 Call options 1,493 — 1,493 — Put options 939 — 939 — Totals 1,112,806 — 1,112,237 569 Note 35 - Fair Value of Financial Assets and Liabilities, continued Transfers between level 1 and 2 As of December 31, 2019 and 2018 no transfers were observed between Level 1 and Level 2, as shown below As of December 31, Measurement at fair value of instruments 2019 that are valued recurrently Fair value Level 1 to 2 Level 2 to 1 MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 — — Financial instruments at fair value through other comprehensive income 3,598,890 — — Financial derivative contracts 3,154,957 — — Totals 6,937,549 — — LIABILITIES Financial derivative contracts 2,938,034 — — Totals 2,938,034 — — As of December 31, Measurement at fair value of instruments 2018 that are valued recurrently Fair value Level 1 to 2 Level 2 to 1 MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 96,943 — — Financial instruments at fair value through other comprehensive income 2,657,154 — — Financial derivative contracts 1,368,957 — — Totals 4,123,054 — — LIABILITIES Financial derivative contracts 1,112,806 — — Totals 1,112,806 — — Disclosures regarding level 3 assets and liabilities During 2019 and 2018, no assets were transferred between levels 1 and 2. Disclosures Regarding Level 3 Assets and Liabilities Level 3 assets and liabilities are valued using techniques that require inputs that are not observable on the market, for which the income approach is used to convert future amounts to present amounts. This category includes: · Financial derivative instruments indexed to the TAB rate. This rate is comprised of an interbank rate and a liquidity premium charged to financial institutions and is determined using a short-rate model with mean reversion. · American forward options. As none of these products has a market, the Bank uses financial engineering valuation techniques that use unobservable variables. Note 35 - Fair Value of Financial Assets and Liabilities, continued These techniques use the following inputs: transaction prices from the main financial instrument markets and assumptions that Management believes are commonly used by the financial services industry. Using this information, unobservable variables are constructed such as: adjustment curves, spreads, volatilities and other variables necessary for the valuation. Lastly, all of the models are subject to internal contrasts by independent areas and have been reviewed by internal auditors and regulators. None of these products generate significant impacts on the Bank’s results as a result of recalibration. The American Forward is only offered for the US dollar-Chilean peso market and until now, given the important differential between these interest rates, the product behaves like a traditional forward. The TAB swap does not have significant impacts on the valuation as the modeled liquidity premiums have a quick mean reversion for the short part and low volatility for the long part, concentrating on the book’s sensitivity in the longest part of the curve. The following table reconciles assets and liabilities measured at fair value on a recurring basis as of December 31, 2019 and 2018. As of December 31, 2019 Gain (loss) Gain (loss) Purchases, Transfers Opening recognized in recognized in sales and from level 1 Ending Level 3 reconciliation balance profit or loss equity agreements or level 2 balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS Financial derivative contracts 27,156 17,328 — (17,052) — 27,432 Forwards 618 12,398 — (7,956) — 5,060 Swaps 26,538 4,930 — (9,096) — 22,372 Call options — — — — — — Put options — — — — — — Totals 27,156 17,328 — (17,052) — 27,432 LIABILITIES Financial derivative contracts 569 3,208 — (2,658) — 1,119 Forwards 49 2,565 — (2,433) — 181 Swaps 520 643 — (225) — 938 Call options — — — — — — Put options — — — — — — Totals 569 3,208 — (2,658) — 1,119 As of December 31, 2018 Gain (loss) Gain (loss) Purchases, Transfers Opening recognized in recognized in sales and from level 1 Ending Level 3 reconciliation balance profit or loss equity agreements or level 2 balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS Financial derivative contracts 30,528 5,863 — (9,235) — 27,156 Forwards 53 716 — (151) — 618 Swaps 30,475 5,147 — (9,084) — 26,538 Call options — — — — — — Put options — — — — — — Totals 30,528 5,863 — (9,235) — 27,156 LIABILITIES Financial derivative contracts 605 1,223 — (1,259) — 569 Forwards — 831 — (782) — 49 Swaps 605 392 — (477) — 520 Call options — — — — — — Put options — — — — — — Totals 605 1,223 — (1,259) — 569 Note 35 - Fair Value of Financial Assets and Liabilities, continued Hierarchy for remaining assets and liabilities The following table classifies assets and liabilities measured at fair value on a non-recurring basis, in accordance with the fair value hierarchy as of December 31, 2019 and 2018. As of December 31, 2019 Market value of the Other observable Non-observable Estimated fair asset for identified significant inputs significant inputs Measurement at fair value of items on a non-recurring basis value assets (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 1,009,681 — — Cash items in process of collection 231,305 231,305 — — Loans and accounts receivable at amortized cost 23,313,453 — — 23,313,453 Financial instruments at amortized cost 114,175 114

Risk management

Risk management	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Risk management	Note 36 - Risk management The Bank and its subsidiaries, through their activity, are exposed to several types of risk mainly related to loans portfolio and financial instruments. Risk management policies are established in order to identify and analyze the risks faced by the Bank, set limits and adequate controls, monitor risks and comply with limits. The risk management policies and risk administration structures are reviewed periodically in order to reflect changes in the institution’s activities. The Bank, through its rules and procedures, intends to develop an appropriate control environment, in which all employees understand their roles and responsibilities. The following is a description of the main business activities and policies of the Bank in terms of risk management. Risk Management Structure Board of Directors At the Bank and its Subsidiaries, the Board of Directors plays a leading role in corporate governance. It is responsible for establishing and monitoring the Bank’s risk management structure, for which it has a corporate governance system aligned with international best practices and Chilean regulations, mainly from the CMF. One of the principal functions of the Board of Directors is to ensure that measures are in place to monitor, evaluate and guide senior management to ensure that their actions are in line with best practices and defined risk appetite levels. To accomplish this, a governance structure made up of various committees has been created. These committees lay out behavioral guidelines for the Bank’s associates and assist them in carrying out their functions related to controlling and managing the Bank’s risks. Audit Committee The Audit Committee’s objective is to monitor the Bank’s internal control systems and its compliance with regulations and other internal standards. It is also responsible for the oversight of the different aspects of maintenance, application and functioning of the Bank’s internal controls, monitoring compliance with standards and procedures regulating its practices, and having an understanding of the risks that can arise from the business conducted by the Bank. The committee is linked to the Board of Directors through the participation of at least two board members named by the Board itself. These members must report to the Board situations and events analyzed by the Committee, thus holding the Bank’s Board members responsible for complying with both self-control policies established and practiced by the entity as well as laws and regulations to which it is subject. The Audit Committee must reinforce and support Internal Audit function including its independence from management and serve, at the same time, as a link between the internal audit department and the independent auditors as well as between both auditors and the Board of Directors. Directors’ Committee The Directors’ Committee’s objective is to strengthen the self-regulation of the Bank and other entities under its control, making the Board’s work more efficient through increased oversight of management’s activities. Likewise, responsible for making the agreements necessary to protect shareholders, especially minority shareholders, examining executive compensation systems and analyzing and issuing a report on the transactions referenced in title XVI of Law 18,046. A copy of this report is sent to the Board, which must read the report and approve or reject each respective transaction. Note 36 - Risk management, continued In its role as overseer of corporate activity, the committee must inform the market of any violations or major corporate events as well as transactions that the company carries out with related parties of the controlling shareholder or takeovers of any form. Corporate Governance Committee For the purposes of this committee, which is aware of how difficult it is to bring together all aspects of good corporate governance under one definition, corporate governance shall be defined as the set of bodies and institutional practices that impact a company’s decision making process, contributing to sustainable value creation in a framework of transparency, proper management, risk control and corporate responsibility towards the market. Therefore, appropriate corporate governance in a Bank must align organizational incentives and promote the rights of shareholders and other direct or indirect stakeholders. The Corporate Governance Committee is a consultation body of the Board of Directors whose mission is to ensure the existence and development within the Bank of the best corporate governance practices for financial entities. To this end, it will evaluate the current practices and policies, propose and make recommendations to the Board of Directors on improvements, reforms and adjustments that it deems appropriate and work to ensure proper implementation and application of these corporate governance practices and policies defined by the Board of Directors. Asset-Liability Committee (ALCO) After the Board and its specialized committees, the Asset-Liability Committee (hereinafter also “ALCO”) is the next highest body involved in managing the institution’s financial policies. The committee’s main purpose is to comply with the financial guidelines set by the Board of Directors. In this spirit, it must approve and monitor the financial strategies that guide the Bank with respect to the composition of its assets and liabilities, cash inflows and outflows and transactions with financial instruments. It will consider the diverse alternatives available to make decisions that ensure the highest and most sustainable returns with financial risk levels that are compatible with the business, current regulations and internal standards.| Anti-Money Laundering and Anti-Terrorism Finance Prevention Committee This committee’s main purpose is to plan and coordinate activities to comply with policies and procedures to prevent asset laundering, terrorism financing and bribery, to maintain itself informed of the work carried out by the Compliance Officer, who has also been designated as the head of prevention in conformity with Law No. 20,393, as well as to adopt agreements to improve prevention and control measures proposed by the Compliance Officer. Operational Risk Committee This committee’s objective is to evaluate the status of critical processes that are directly related to the Bank’s Operational Risk and Internal Controls, in accordance with current Commission for the Financial Market standards in order to improve any weaknesses that the Bank may present and ensure proper implementation of regulatory changes. It is also responsible for attaining critical processes under an internal control environment that enables the Bank to operate stably and consistently, thus procuring desired levels of reliability, integrity and availability for information resources. Note 36 - Risk management, continued Compliance Committee The Compliance Committee’s main purpose is to define, promote and ensure that the conduct of all Itaú Corpbanca employees meets the highest possible standards of personal and professional excellence. Employee conduct should, at all times, be guided by the principles and values that embody our organization’s spirit, philosophy and good business practices. It is also responsible for ensuring that the Regulatory Compliance Model is properly applied in accordance with definitions set by this committee, and for maintaining itself informed of the work carried out by the Compliance Officer on such matters, as well as adopting agreements to improve control measures proposed by the Compliance Officer. Committee on Risk Methodologies The objective of the Risk Methodologies Committee is to ensure the quality of all methodologies for estimating the Bank’s provisions for all business areas. This Committee - which exercises its functions with respect to the Bank, its Divisions and Subsidiaries - deals with certain corporate aspects such as policies, manuals and procedures related to the methodologies of Bank provisions, as well as the statistical models of admission, behavior and provisions. Its main members are: Corporate Risk Manager, Risk Control Manager, Retail Credit Manager, Financial Risk Manager, Responsible for Monitoring and Control of Retail and Responsible for Risk Models. Portfolio Committee The objective of the Portfolio Committee is to monitor the evolution of the Bank’s wholesale and retail portfolios in terms of their risk-return ratio, their adjustment to the defined risk appetite and the progress made in materializing short-term strategies or instructions. Also, long term that this committee has defined. As a result, it considers in its analysis the competition, the movements of its most relevant actors and the main risks that affect the management of the portfolios, as well as the projects that have an impact on the matter. Its main members are: General Manager, Corporate Risk Manager, Risk Control Manager, Wholesale Credit Manager, Wholesale Banking Manager, Retail Credit Manager, Retail Banking Manager, Financial Planning and Control Manager and Product Manager and Marketing Internal Audit The main function of Internal Audit is to support the Board of Directors and senior management to independently asses the maintenance, application and proper functioning of the Bank’s internal control system, which also entails supervising compliance with rules and procedures. Code of Conduct and Market Information Manual The objective is to continue progressing to become the best Bank and have first-rate human capital. All associates, directors and Subsidiaries must adhere to ethical standards based on principles and values designed to guide and maintain the highest possible standards. In response to our clients’ trust and recognition, which are vital to our success, all associates and directors should strive to retain this trust, strictly complying with the General Code of Conduct. Note 36 - Risk management, continued Main Risks and Requirements Affecting the Bank and its Subsidiaries: Credit risk Credit risk is the risk that a customer or counterparty will default on its contractual obligations resulting in financial loss to the Bank. The Bank’s main income generating activity is lending to customers and therefore credit risk is a principal risk. Credit risk mainly arises from loans and advances to customers and other Banks (including related commitments to lend such as loan or credit card facilities), investments in debt securities and derivatives that are an asset position. The Bank considers all elements of credit risk exposure such as counterparty default risk, geographical risk and sector risk for risk management purposes. Credit risk management The Bank’s credit committee is responsible for managing the Bank’s credit risk by: · Ensuring that the Bank has appropriate credit risk practices, including an effective system of internal control, to consistently determine adequate allowances in accordance with the Bank’s stated policies and procedures, IFRS and relevant supervisory guidance. · Identifying, assessing and measuring credit risk across the Bank, from an individual instrument to a portfolio level. · Creating credit policies to protect the Bank against the identified risks including the requirements to obtain collateral from borrowers, to perform robust ongoing credit assessment of borrowers and to continually monitor exposures against internal risk limits. · Limiting concentrations of exposure by type of asset, counterparties, industry, credit rating, geographic location etc. · Establishing a robust control framework regarding the authorization structure for the approval and renewal of credit facilities. · Developing and maintaining the Bank’s risk grading to categorize exposures according to the degree of risk of default. Risk grades are subject to regular reviews. · Developing and maintaining the Bank’s processes for measuring ECL including monitoring of credit risk, incorporation of forward looking information and the method used to measure ECL. · Ensuring that the Bank has policies and procedures in place to appropriately maintain and validate models used to assess and measure ECL. · Establishing a sound credit risk accounting assessment and measurement process that provides it with a strong basis for common systems, tools and data to assess credit risk and to account for ECL. Providing advice, guidance and specialist skills to business units to promote best practice throughout the Bank in the management of credit risk. The internal audit function performs regular audits making sure that the established controls and procedures are adequately designed and implemented. Note 36 - Risk management, continued Significant increase in credit risk The Bank analyzes all data collected using statistical models and estimates the remaining lifetime PD of exposures and how these are expected to change over time. The factors taken into account in this process include macro-economic data such as GDP growth, unemployment, benchmark interest rates and house prices. The Bank generates a ‘base case’ scenario of the future direction of relevant economic variables as well as a representative range of other possible forecast scenarios. The Bank then uses these forecasts, which are probability-weighted, to adjust its estimates of PDs. Under the Bank’s monitoring procedures a significant increase in credit risk is identified before the exposure has defaulted, and at the latest when the exposure becomes 30 days past due, unless the Bank has reasonable and supportable information that demonstrates otherwise. The Bank uses different criteria to determine whether credit risk has increased significantly per portfolio of assets. The criteria used are both quantitative changes in PDs as well as qualitative. The table below summarizes per type of asset the range above which an increase in lifetime PD is determined to be significant, as well as some indicative qualitative indicators assessed. Criteria used for Chile % of absolute increase PD ranges per in lifetime Type of portfolio Debtor category debtor category PD Stages Days of arrears to the end of the month A1 A2 0.04 – 0.25% 0.13% A3 Stage 1 Up to 29 days A4 2.00% 1.62% A5 (*) A6 4.75 – 10% 3.52% B1 Stage 2 From 30 to 89 days Corporate B2 B3 15 -45% 23.05% B4 C1 C2 C3 C4 100% 100% Stage 3 90 days or more C5 C6 (*) Loans originated in A5 are considered Stage 1 at inception. Loans that were originated in a higher category and subsequently downgraded to A5 are considered Stage 2. Note 36 - Risk management, continued Probability of default (PD) and Type of portfolio Stages Days of arrears to the end of the month qualitative considerations Stage 1 Up to 29 days Difference between Referential Life Time PD and PD Life Time at origination < 20% Group Stage 2 From 30 to 89 days Difference between Referential Life Time PD and PD Life Time at origination >= 20% Stage 3 90 days or more Restructured loans with 60 days in arrears before restructuring The quantitative criteria is used to identify where an exposure has increased in credit risk and it is applied based on whether an increase in the lifetime PD since the recognition date exceeds the threshold set in absolute and relative terms. The following formulas are used to determine such thresholds: Relative comparison formula Threshold = Lifetime PD (at reporting date) - 1 Lifetime PD (at origination) Absolute comparison formula Threshold = Lifetime PD (at reporting date) – Lifetime PD (at origination) Note 36 - Risk management, continued Criteria used for Colombia % of absolute increase in % of relative increase Qualitative lifetime PD in lifetime PD indicators assessed Corporate portfolio Without information 34.39 % 86.90 % Small company 22.26 % 1,314.07 % Small company 33.91 % 1,326.89 % Medium company 22.53 % 64.23 % ● Debt restructuring Medium company 25.67 % 1,203.61 % ● Increase in credit risk of other financial instruments Large company 10.28 % 99.15 % Low default 0.46 % 0.48 % Low default (Government and Financial) — % 324.00 % Group portfolio Leasing 33.23 % 82.04 % Payroll deductible loan 2.79 % 77.14 % Revolving line of credit 35.22 % 85.65 % Overdraft limit 0.70 % 241.11 % Credit card 29.44 % 175.32 % Mortgage loan 2.55 % 151.19 % Personal debt restructuring 44.04 % 101.64 % ● Increase in credit risk of other financial instruments Other loans 26.53 % 174.02 % Loan commitments are assessed along with the category of loan the Bank is committed to provide, i.e. commitments to provide mortgages are assessed using similar criteria to mortgage loans, while commitments to provide a corporate loan are assessed using similar criteria to corporate loans. The Bank has monitoring procedures in place to make sure that the criteria used to identify significant increases in credit are effective, meaning that significant increase in credit risk is identified before the exposure is defaulted or when the asset becomes 30 days past due. The Bank performs periodic back-testing of its ratings to consider whether the drivers of credit risk that led to default were accurately reflected in the rating in a timely manner. Incorporation of forward-looking information The Bank uses forward-looking information that is available without undue cost or effort in its assessment of significant increase of credit risk as well as in its measurement of ECL. The Bank employs experts who use external and internal information to generate a ‘base case’ scenario of future forecast of relevant economic variables along with a representative range of other possible forecast scenarios. The external information used includes economic data and forecasts published by governmental bodies and monetary authorities. Note 36 - Risk management, continued The Bank applies probabilities to the forecast scenarios identified. The base case scenario is the single most-likely outcome and consists of information used by the Bank for strategic planning and budgeting. The Bank has identified and documented key drivers of credit risk and credit losses for each portfolio of financial instruments and, using a statistical analysis of historical data, has estimated relationships between macro-economic variables and credit risk and credit losses. The Bank has not made changes in the estimation techniques or significant assumptions made during the reporting period. The table below summarizes the principal macroeconomic indicators included in the economic scenarios used as of December 31, 2019 until December 31, 2023 in the countries where the Bank and its subsidiaries operate and therefore are the countries that have a material impact on ECLs. Criteria for Chile 2019 2020 2021 Indicators Portfolio Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Unemployment rate Base scenario % Range of upside scenarios % Range of downside scenarios % Consumer's price index (IPC) Base scenario 104.01 103.56 103.76 103.31 102.69 102.81 102.98 103.01 103.00 103.00 103.00 103.00 Range of upside scenarios 105.15 105.32 105.11 104.50 103.54 103.53 103.65 103.60 103.55 103.50 103.45 103.40 Range of downside scenarios 103.27 102.90 103.06 102.70 102.50 102.61 102.77 102.80 102.80 102.80 102.80 102.80 Interbank interest rate Base scenario % Range of upside scenarios % Range of downside scenarios % Cooper Base scenario 2.68 2.68 2.68 2.68 2.69 2.69 2.70 2.71 2.72 2.73 2.73 2.74 Range of upside scenarios 2.54 2.54 2.54 2.54 2.55 2.56 2.57 2.57 2.58 2.59 2.60 2.60 Range of downside scenarios 2.94 2.94 2.94 2.94 2.95 2.96 2.97 2.98 2.99 3.00 3.01 3.02 Note 36 - Risk management, continued Criteria for Colombia As of December 31, 2020 2021 2022 GDP growth Base scenario 3.11 2.66 2.63 Range of upside scenarios 4.33 4.20 4.25 Range of downside scenarios 3.72 3.43 3.44 Unemployment rates Base scenario 9.84 9.84 9.84 Range of upside scenarios 9.50 9.40 9.34 Range of downside scenarios 10.21 10.29 10.35 Benchmark interest rates Base scenario 4.75 4.75 4.75 Range of upside scenarios 5.75 5.75 5.75 Range of downside scenarios 3.75 3.75 3.75 currency exchange rate Base scenario 3,180 3,180 3,150 Range of upside scenarios 3,104 3,071 3,025 Range of downside scenarios 3,256 3,289 3,335 Consumer’s Price Index Base scenario 3.40 3.00 3.00 Range of upside scenarios 3.95 3.91 4.27 Range of downside scenarios 2.74 1.86 1.38 Predicted relationships between the key indicators and default and loss rates on various portfolios of financial assets have been developed based on analyzing historical data over the past 3 years. Sensitivity analysis The most significant assumptions affecting the ECL allowance, as indicated in the tables above by country, are as follows: Chile: § Unemployment rate, given its impact on secured and unsecure borrowers’ ability to meet their contractual repayments. · Consumer’s Price Index (IPC), given its impact on housing prices, mortgage collateral valuations, and consumers acquisition power · Interbank interest rate, given its impact on companies’ likelihood of default · Cooper, given its impact on the Chilean economy as a whole Note 36 - Risk management, continued Colombia: · GDP growth, given the significant impact on companies’ performance and collateral valuations · Unemployment rates, given its impact on secured and unsecure borrowers’ ability to meet their contractual repayments. · Interest rate, given its impact on companies’ likelihood of default · Exchange rates, given its impact on companies’ financial position and debt · Consumer’s Price Index (IPC), given its impact on housing prices and consumers acquisition power Set out below are the changes to ECL as of December 31, 2019 that would result from reasonably possible changes in these parameters from the actual assumptions used in the Bank’s economic variable assumptions as set forth in the tables above for Base scenarios, upside scenarios, and downside scenarios. ECL coverage of loans and accounts receivable at amortized cost subject to significant measurement uncertainty as of December 31, 2019 Chile Colombia MCh$ MCh$ Reported ECL 606,828 273,289 Loans and accounts receivable at amortized cost 18,245,234 4,889,580 Reported Coverage (Reported ECL/ loans and accounts receivable at amortized cost) % Consensus upside scenario (Upside scenario for ECL/ loans and accounts receivable at amortized cost) % Consensus central scenario (Base scenario for ECL/ loans and accounts receivable at amortized cost) % Consensus downside scenario (Downside scenario for ECL/ loans and accounts receivable at amortized cost) % ECL coverage rates reflect the underlying observed credit defaults, the sensitivity to economic environment, extent of collateral and the effective maturity of the book. Measurement of ECL The key inputs used for measuring ECL are: · probability of default (PD); · loss given default (LGD); and · exposure at default (EAD). As explained above these figures are generally derived from internally developed statistical models and other historical data and they are adjusted to reflect probability-weighted forward-looking information. Note 36 - Risk management, continued PD is an estimate of the likelihood of default over a given time horizon. It is estimated as at a point in time. The calculation is based on statistical rating models, and assessed using rating tools tailored to the various categories of counterparties and exposures. These statistical models are based on market data (where available), as well as internal data comprising both quantitative and qualitative factors. PDs are estimated considering the contractual maturities of exposures and estimated prepayment rates. The estimation is based on current conditions, adjusted to take into account estimates of future conditions that will impact PD. LGD is an estimate of the loss arising on default. It is based on the difference between the contractual cash flows due and those that the lender would expect to receive, taking into account cash flows from any collateral. The LGD models for secured assets consider forecasts of future collateral valuation taking into account sale discounts, time to realization of collateral, cross-collateralization and seniority of claim, cost of realization of collateral and cure rates (i.e. exit from non-performing status). LGD models for unsecured assets consider time of recovery, recovery rates and seniority of claims. The calculation is on a discounted cash flow basis, where the cash flows are discounted by the current interest rate. EAD is an estimate of the exposure at a future default date, taking into account expected changes in the exposure after the reporting date, including repayments of principal and interest, and expected drawdowns on committed facilities. The Bank’s modelling approach for EAD reflects expected changes in the balance outstanding over the lifetime of the loan exposure that are permitted by the current contractual terms, such as amortization profiles, early repayment or overpayment, changes in utilization of undrawn commitments and credit mitigation actions taken before default. The Bank uses EAD models that reflect the characteristics of the portfolios. The Bank measures ECL considering the risk of default over the maximum contractual period (including extension options) over which the entity is exposed to credit risk and not a longer period, even if contact extension or renewal is common business practice. However, for financial instruments such as credit cards, revolving credit facilities and overdraft facilities that include both a loan and an undrawn commitment component, the Bank’s contractual ability to demand repayment and cancel the undrawn commitment does not limit the Bank’s exposure to credit losses to the contractual notice period. For such financial instruments the Bank measures ECL over the period that it is exposed to credit risk and ECL would not be mitigated by credit risk management actions, even if that period extends beyond the maximum contractual period. These financial instruments do not have a fixed term or repayment structure and have a short contractual cancellation period. However, the Bank does not enforce in the normal day-to-day management the contractual right to cancel these financial instruments. This is because these financial instruments are managed on a collective basis and are canceled only when the Bank becomes aware of an increase in credit risk at the facility level. This longer period is estimated taking into account the credit risk management actions that the Bank expects to take to mitigate ECL, e.g. reduction in limits or cancellation of the loan commitment. The measurement of ECL is based on probability weighted average credit loss. As a result, the measurement of the loss allowance should be the same regardless of whether it is measured on an individual basis or a collective basis (although measurement on a collective basis is more practical for large portfolios of items). In relation to the assessment of whether there has been a significant increase in credit risk it can be necessary to perform the assessment on a collective basis as noted below. Note 36 - Risk management, continued Credit quality A detail by credit quality, which includes loans and accounts receivable from customers and interbank loans as of December 31, 2019 and 2018 is summarized as follows: As of December 31, 2019 Corporate Stage 1 Stage 2 Stage 3 Totals corporate Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % A1 101,936 — — 101,936 14 — — 14 A2 600,732 — — 600,732 124 — — 124 A3 3,063,847 — — 3,063,847 1,636 — — 1,636 A4 4,238,157 — — 4,238,157 12,582 — — 12,582 A5 2,723,568 — — 2,723,568 21,246 — — 21,246 A6 — 1,041,531 — 1,041,531 — 25,533 — 25,533 B1 — 364,393 — 364,393 — 11,971 — 11,971 B2 — 154,200 — 154,200 — 12,071 — 12,071 B3 — 73,505 — 73,505 — 11,058 — 11,058 B4 — 413,676 — 413,676 — 96,699 — 96,699 C1 — — 167,177 167,177 — — 2,464 2,464 C2 — — 43,587 43,587 — — 3,213 3,213 C3 — — 80,574 80,574 — — 14,848 14,848 C4 — — 91,831 91,831 — — 27,076 27,076 C5 — — 205,639 205,639 — — 98,523 98,523 C6 — — 144,115 144,115 — — 95,606 95,606 Subtotals corporate 10,728,240 2,047,305 732,923 13,508,468 35,602 157,333 241,730 434,665 As of December 31, 2019 Group Stage 1 Stage 2 Stage 3 Total group Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % Commercial loans 1,737,978 — 214,098 1,952,076 37,434 — 73,100 110,534 Mortgage loans 4,043,765 656,010 176,266 4,876,041 5,680 49,072 23,749 78,501 Consumer loans 2,201,939 482,372 113,918 2,798,229 66,692 113,507 76,218 256,417 Subtotals group 7,983,682 1,138,382 504,282 9,626,346 109,806 162,579 173,067 445,452 Totals portfolio 18,711,922 3,185,687 1,237,205 23,134,814 145,408 319,912 414,797 880,117 Note 36 - Risk management, continued As of December 31, 2018 Corporate Stage 1 Stage 2 Stage 3 Totals corporate Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % A1 115,422 — — 115,422 0.53 % 899 — — 899 0.12 % A2 681,792 — — 681,792 3.12 % 1,477 — — 1,477 0.19 % A3 3,033,770 — — 3,033,770 13.90 % 5,901 — — 5,901 0.77 % A4 4,007,691 — — 4,007,691 18.36 % 37,650 — — 37,650 4.90 % A5 2,727,643 — — 2,727,643 12.50 % 96,956 — — 96,956 12.61 % A6 — 837,283 — 837,283 3.84 % — 14,829 — 14,829 1.93 % B1 — 377,954 — 377,954 1.73 % — 10,116 — 10,116 1.32 % B2 — 104,513 — 104,513 0.48 % — 5,479 — 5,479 0.71 % B3 — 84,197 — 84,197 0.39 % — 8,830 — 8,830 1.15 % B4 — 297,570 — 297,570 1.36 % — 37,422 — 37,422 4.87 % C1 — — 137,216 137,216 0.63 % — — 2,344 2,344 0.30 % C2 — — 79,134 79,134 0.36 % — — 6,758 6,758 0.88 % C3 — — 334,263 334,263 0.16 % — — 7,317 7,317 0.95 % C4 — — 62,242 62,242 0.29 % — — 21,265 21,265 2.77 % C5 — — 63,181 63,181 0.29 % — — 47,576 47,576 6.19 % C6 — — 127,874 127,874 0.59 % — — 84,475 84,475 11.00 % Subtotals corporate 10,566,318 1,701,517 803,910 13,071,745 58.53 % 142,883 76,676 169,735 389,294 50.66 % As of December 31, 2018 Group Stage 1 Stage 2 Stage 3 Total group Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % Commercial loans 1,710,659 95,045 131,158 1,936,862 8.87 % 39,864 20,622 35,390 95,876 12.47 % Mortgage loans 3,626,811 659,119 159,897 4,445,827 20.37 % 5,756 37,800 22,561 66,117 8.60 % Consumer loans 2,135,693 444,058 90,012 2,669,763 12.23 % 70,765 84,842 61,689 217,296 28.27 % Subtotals group 7,473,163 1,198,222 381,067 9,052,452 41.47 % 116,385 143,264 119,640 379,289 49.34 % Totals portfolio 18,039,481 2,899,739 1,184,977 21,824,197 100 % 259,268 219,940 289,375 768,583 100 % Note 36 - Risk management, continued The table below provides an analysis of the gross carrying amount of loans and advances to customers by past due: Less than 30 days overdue Between 30 and 89 days overdue More than 90 days overdue Total overdue MCh$ MCh$ MCh$ MCh$ Interbank loans — — — — Loans and accounts receivable from customers Commercial loans 542,648 134,505 490,641 1,167,794 Mortgage loans 166,105 88,072 102,650 356,827 Consumer loans 152,507 73,347 60,373 286,227 Totals 861,260 295,924 653,664 1,810,848 Less than 30 days overdue Between 30 and 89 days overdue More than 90 days overdue Total overdue MCh$ MCh$ MCh$ MCh$ Interbank loans — — — — Loans and accounts receivable from customers Commercial loans 251,596 117,386 314,870 683,852 Mortgage loans 108,783 64,088 91,107 263,978 Consumer loans 69,412 59,616 46,970 175,998 Totals 429,791 241,090 452,947 1,123,828 An analysis for the movement of the allowance for losses during the year by individual and group portfolio is included in Note 10, letter c. Note 36 - Risk management, continued Maximum Exposure to Credit Risk The following table shows the Bank’s maximum credit risk exposure by financial asset as of December 31, 2019, 2018, 2017 for different balance sheet items, including derivatives, without deducting real guarantees or other credit enhancements received: Maximum Exposure as of December 31, 2019 Balance sheet asset Off-balance sheet Collateral Notes Gross amounts Allowances Net amounts Gross amounts Allowances Net amounts Cash Non-cash Net exposure MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial instruments at fair value through other comprehensive income 11 3,598,890 — 3,598,890 — — — — — 3,598,890 Loans and accounts receivable at amortized cost 10 23,134,814 880,117 22,254,697 5,895,139 34,271 5,860,868 — 27,344,699 770,866 Commercial loans 15,460,544 545,199 14,915,345 5,895,139 34,271 5,860,868 — 17,686,941 3,089,272 Mortgage loans 4,876,041 78,501 4,797,540 — — — — 7,424,712 (2,627,172) Consumer loans 2,

Maturity of assets and liabilit

Maturity of assets and liabilities	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Maturity of assets and liabilities	Note 37 - Maturity of assets and liabilities The main assets grouped by maturity, including interest accrued as of December 31, 2019 and 2018, are detailed as follows: As of December 31, 2019 Between Between 1 month Between Between 3 years to 3 3 month 1 year to to 6 Over 6 Up to 1 month months to 1 year 3 years years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Financial instruments at fair value through profit or loss 20,465 54,382 39,730 39,822 26,703 2,600 183,702 Financial instruments at fair value through other comprehensive income 258,843 151,014 609,862 1,515,340 896,383 167,448 3,598,890 Loans and accounts receivable from customers at amortized cost (**) 1,641,670 2,723,589 2,796,116 2,576,345 3,778,435 9,618,659 23,134,814 Commercial loans 1,443,029 2,209,624 2,693,582 1,962,306 2,516,050 4,635,953 15,460,544 Mortgages loans 3,040 550 2,760 22,657 115,878 4,731,156 4,876,041 Consumer loans 195,601 513,415 99,774 591,382 1,146,507 251,550 2,798,229 Financial instruments at amortized cost 29,026 7,543 78,138 951 — — 115,658 Investments under resale agreements 75,975 — — — — — 75,975 Financial derivative contracts 151,952 160,523 306,284 602,190 662,530 1,271,478 3,154,957 Interbank loans (*) 55,881 — 945 — — — 56,826 Liabilities Investments under resale agreements 559,457 — — — — — 559,457 Deposits and other demand liabilities 3,946,542 2,432,029 3,913,833 827,802 128,756 371,225 11,620,187 Financial derivative contracts 235,652 145,905 283,404 580,829 703,285 988,959 2,938,034 Interbank borrowings 90,251 246,214 1,781,437 406,539 96,281 26,034 2,646,756 Lease obligations 1,177 76,333 52,074 14,561 20,734 8,045 172,924 Debt instruments issued 30,419 378 620,710 959,369 1,375,640 3,421,840 6,408,356 (*) Interbank loans are presented gross. The amount of allowances corresponds to MCh$239. (**) Loans and accounts receivable from customers at amortized cost are presented gross. Allowances by loan type are detailed as follows: Commercial MCh$545,119; Mortgage MCh$78,501; and Consumer MCh$256,417. Note 37 - Maturity of assets and liabilities, continued As of December 31, 2018 Between Between 1 month Between Between 3 years to 3 3 month 1 year to to 6 Over 6 Up to 1 month months to 1 year 3 years years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Financial instruments at fair value through profit or loss 46,266 470 19,002 22,027 4,573 4,605 96,943 Financial instruments at fair value through other comprehensive income 151,521 103,048 582,899 1,314,188 330,485 175,013 2,657,154 Loans and accounts receivable from customers at amortized cost (**) 1,595,651 2,343,263 2,115,285 2,322,459 3,464,140 9,641,692 21,482,490 Commercial loans 1,391,707 1,876,174 2,023,542 1,734,720 2,238,373 5,102,384 14,366,900 Mortgages loans 2,544 1,021 3,876 18,192 103,965 4,316,229 4,445,827 Consumer loans 201,400 466,068 87,867 569,547 1,121,802 223,079 2,669,763 Financial instruments at amortized cost 27,012 18,238 153,673 — — — 198,923 Investments under resale agreements 109,467 — — — — — 109,467 Financial derivative contracts 120,361 102,992 178,826 263,595 279,427 423,756 1,368,957 Interbank loans (*) 65,398 16,685 17,437 242,187 — — 341,707 Liabilities Investments under resale agreements 1,015,614 — — — — — 1,015,614 Deposits and other demand liabilities 3,624,335 2,311,111 2,910,851 762,998 102,155 409,661 10,121,111 Financial derivative contracts 128,367 95,019 161,214 200,052 248,765 279,389 1,112,806 Interbank borrowings 231,419 446,436 1,151,959 337,465 100,455 59,989 2,327,723 Debt instruments issued 2,449 23,261 668,648 868,994 1,125,037 3,321,735 6,010,124 (*) Interbank loans are presented gross. The amount of allowances corresponds to MCh$463. (**) Loans and accounts receivable from customers at amortized cost are presented gross. Allowances by loan type are detailed as follows: Commercial MCh$484,707; Mortgage MCh$66,117; and Consumer MCh$217,296.

Foreign currency position

Foreign currency position	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Foreign currency position	Note 38 - Foreign currency position In the Consolidated Statements of Financial Position as of December 31, 2019 and 2018, assets and liabilities are included in local and foreign currency, as well as adjustable by the variation of the exchange rate, for the amounts indicated below: Others As of December 31, 2019 Note CLP (*) UF USD COP EUR currency Readjustment Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 243,754 — 364,594 398,780 2,553 — — 1,009,681 Cash items in process of collection 5b) 150,463 — 80,132 710 — — — 231,305 Financial instruments at fair value through profit or loss 6 112,224 — — 71,478 — — — 183,702 Financial instruments at fair value through other comprehensive income 11 1,600,147 1,023,726 124,310 850,707 — — — 3,598,890 Loans and accounts receivable at amortized cost 10 5,678,458 8,749,298 3,459,607 4,355,845 841 — 10,648 22,254,697 Financial instruments at amortized cost 11 — — 30,123 85,535 — — — 115,658 Investments under resale agreements 7 46,686 — — 29,289 — — — 75,975 Investments in companies 5,833 — — 3,772 — — — 9,605 Financial derivative contracts 8 2,199,266 324,414 536,936 93,427 914 — — 3,154,957 Interbank loans, net 9 — — 35,944 20,452 — — — 56,396 Intangible assets 12 1,400,449 — 1,104 172,880 — — — 1,574,433 Property, plant, and equipment 13 72,766 — 422 21,892 — — — 95,080 Right-of-use asset under lease agreements 121,241 — 7,936 38,264 — — — 167,441 Current taxes 14 30,773 — — 54,743 — — — 85,516 Deferred taxes 14 182,302 — 20,942 5,413 — — — 208,657 Other assets 15 248,755 91,456 359,198 71,182 — — 270 770,861 Other non-current assets held for sale 16 17,202 — — — — — — 17,202 TOTAL ASSETS 12,110,319 10,188,894 5,021,248 6,274,369 4,308 — 10,918 33,610,056 Deposits and other demand liabilities 16 2,255,736 2,855 534,005 2,079,465 1,387 — — 4,873,448 Cash in process of being cleared 5b) 100,395 — 64,178 — — — — 164,573 Obligations under repurchase agreements 7 499,136 — — 60,321 — — — 559,457 Time deposits and other time liabilities 16 7,952,973 391,679 1,356,132 1,919,402 — — 1 11,620,187 Financial derivative contracts 8 1,960,447 402,899 476,568 97,212 908 — — 2,938,034 Interbank borrowings 17 — — 2,563,630 83,126 — — — 2,646,756 Debt instruments issued 18 763,503 4,924,260 129,281 590,471 841 — — 6,408,356 Other financial liabilities 18 12,956 10 — — — — — 12,966 Lease contracts liabilities 659 129,034 7,689 35,273 — — 269 172,924 Current taxes 14 13 — — — — — — 13 Deferred taxes 14 — — — 263 — — — 263 Provisions 19 106,456 — — 71,371 — — — 177,827 Other liabilities 20 265,814 268,685 115,196 54,446 — — 4,773 708,914 Liabilities directly associated with non-current assets held for sale 20 — — — — — — — — TOTAL LIABILITIES 13,918,088 6,119,422 5,246,679 4,991,350 3,136 — 5,043 30,283,718 Assets (liabilities) net (1,807,769) 4,069,472 (225,431) 1,283,019 1,172 — 5,875 3,326,338 (*) Includes transactions denominated in foreign currencies but that are settled in pesos. Note 38 - Foreign currency position, continued Others As of December 31, 2018 Note CLP (*) UF USD COP EUR currency Readjustment Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 223,099 — 449,437 299,458 15,686 — — 987,680 Cash items in process of collection 5b) 195,640 — 119,725 226 2,861 206 — 318,658 Financial instruments at fair value through profit or loss 6 54,162 — — 42,781 — — — 96,943 Financial instruments at fair value through other comprehensive income 11 835,543 680,505 78,908 1,060,143 — — — 2,657,154 Loans and accounts receivable at amortized cost 10 5,571,537 7,785,104 3,208,848 4,120,535 19,391 13 8,942 20,714,370 Financial instruments at amortized cost 11 — — 122,391 76,532 — — — 198,923 Investments under resale agreements 7 91,510 — — 17,957 — — — 109,467 Financial derivative contracts 8 972,693 66,989 226,561 102,709 5 — — 1,368,957 Interbank loans, net 9 239,963 — 70,823 30,458 — — — 341,244 Intangible assets 12 1,389,518 — 1,308 180,138 — — — 1,570,964 Property, plant, and equipment 13 77,639 — 846 17,079 — — — 95,564 Current taxes 14 68,094 — 2,887 52,148 — — — 123,129 Deferred taxes 14 130,883 — 20,311 27,492 — — — 178,686 Other assets 15 200,164 7,787 164,724 121,619 7,467 36 — 501,797 Other non-current assets held for sale 16 59,802 — — — — — — 59,802 TOTAL ASSETS 10,110,247 8,540,385 4,466,769 6,151,330 45,410 255 8,942 29,323,338 Deposits and other demand liabilities 16 2,058,537 4,214 444,668 1,785,581 7,418 57 — 4,300,475 Cash in process of being cleared 5b) 133,926 — 112,284 — 796 159 — 247,165 Obligations under repurchase agreements 7 363,789 — 6,834 644,991 — — — 1,015,614 Time deposits and other time liabilities 16 6,513,874 609,136 1,955,631 1,042,445 25 — — 10,121,111 Financial derivative contracts 8 773,186 83,339 178,869 76,207 1,205 — — 1,112,806 Interbank borrowings 17 — 5,863 2,279,817 39,859 2,170 14 — 2,327,723 Debt instruments issued 18 439,805 4,475,832 649,897 444,590 — — — 6,010,124 Other financial liabilities 18 12,390 10 — — — — — 12,400 Current taxes 14 528 — — 663 — — — 1,191 Deferred taxes 14 — — 454 17 — — — 471 Provisions 19 140,925 — — 73,978 — — — 214,903 Other liabilities 20 239,175 133,106 69,900 49,508 2,509 — 27,597 521,795 Liabilities directly associated with non-current assets held for sale 20 — — — — — — — — TOTAL LIABILITIES 10,676,135 5,311,500 5,698,354 4,157,839 14,123 230 27,597 28,885,778 Assets (liabilities) net (565,888) 3,228,885 (1,231,585) 1,993,491 31,287 25 (18,655) 3,437,560

Subsequent events

Subsequent events	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Subsequent events	Note 39 - Subsequent events Chief Executive Officer appointment On January 9, 2020 it was communicated the decision made between Mr. Manuel Olivares Rossetti, the Board of Directors, and the main shareholders, to allow Mr. Olivares to serve as Chief Executive Officer of Itaú Corpbanca until January 29, 2020. The Board also agreed to appoint Mr. Gabriel Moura as the new Chief Executive Officer of Itaú Corpbanca, starting on January 30, 2020. Investment increase in Nexus S.A. On January 22, 2020 Itaú Corpbanca acquired 79,577 shares of Nexus S.A. corresponding to 1.91% of the total equity of this company, for an approximated amount of MCh$338. With this transaction the Bank’s participation increased to 14.81%. Sale on the investment in Itaú Casa de Valores, Panama Itaú Comisionista de Bolsa Colombia S.A., a subsidiary of Itaú Corpbanca Colombia S.A., sold its investment in Itaú Casa de Valores S.A., a public limited company , domiciled in Panama, to LVM Holdings SpA, a company domiciled in Chile. The value of the transaction was determined at 1.5 times the price value of its equity as of January 23, 2020. Changes in the Board of Directors of Itaú Corpbanca Colombia On January 27, 2020, the Shareholders’ Meeting of Itaú Corpbanca Colombia S.A. elected the following members of the Board of Directors: Gabriel Amado de Moura Cristián Toro Cañas Juan Echeverría Gonzalez Monica Aparicio Smith Roberto Brigard Holguín Annual Ordinary Shareholders’ Meeting Agreements At the Ordinary Shareholders’ Meeting of Itaú Corpbanca, held on March 18, 2020, it was approved to distribute a dividend equivalent to 100% of the net income attributable to equity holders of the Bank for the year ended December 31, 2019, which represents an aggregate amount equal to $127.065.130.654 payable to the shareholders of the Bank entitled to receive dividends in a proportion of $0,2479770771 per share. COVID-19 pandemia The first case of COVID-19 in Chile was detected on March 3, 2020. As of the date of this Annual Report, the Chilean government has taken various measures in order to prepare the country for mass contagion, including partial lockdown for some regions. Further government actions may be imposed according to when and how the peak of contagion will occur. Note 39 - Subsequent events, continued From a macroeconomic point of view, the impact of COVID-19 in Chile is uncertain. According to Management, estimates indicate that COVID-19 could result in a decline of 1.9% in Chilean GDP in 2020. However, it is worth noting that there is a considerable degree of uncertainty about GDP growth forecasts for this year, which stems from uncertainty about (i) the duration of the lockdown / isolation measures and (ii) the pace of recovery in the second half of 2020. It is reasonable to believe that, the longer the duration of the isolation measures, the slower the recovery will be in the second half of this year, since the consequences on the financial condition of corporates and households tend to be more intense, delaying the normalization. Economic stagnation, contraction and increased unemployment levels may affect our cost of funding, the recoverability and value of our assets and could result in lower loan portfolio growth, higher past-due loans, given the deteriorated financial condition of our customers and, therefore, higher provisions for loans losses, resulting in lower net income. To mitigate the impact on the economy the Government has enacted several laws to combat the economic consequences of COVID-19 and the Central Bank of Chile has taken some measures for providing liquidity to the market, as well as, reducing the overnight interest rate. In order to manage the impacts of COVID-19 in our operations, we organized ourselves in three main pillars. The first pillar is related to our clients and what needed to be done to continue to be fully accessible through our digital channels and to continue to provide the solutions requested by our clients. The second pillar is related to our people and how we could support and protect them at the same time as we reinforce our organizational values and culture. The third pillar relates to our efforts to maintain our strong focus on risk management and our operational and technological capabilities to keep the Bank running strong, safe and solid. Itaú Corpbanca maintains its operational activities and continues to monitor and assess the impacts of this pandemic on its results, as well as its effects on critical estimates and judgments including allowance for loan losses and impairments, considering that this event does not impact its financial results for the year ended December 31, 2019 and its financial position as of December 31, 2019. Others Between January 1 and April 24, 2020, the date of issuance of these Consolidated Financial Statements, there have been no other events after the reporting period that could affect the presentation and results of the financial statements. Roxana Zamorano Gabriel Moura Chief Accounting Officer Chief Executive Officer

General Information and Summa_2

General Information and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Statement [LineItems]
Accounting period	a) Accounting period The Consolidated Financial Statements are referred as of December 31, 2019 and 2018 and comprise the years ended December 31, 2019, 2018 and 2017.
Basis of preparation of the Consolidated Financial Statements	b) Basis of preparation of the Consolidated Financial Statements These Consolidated Financial Statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS-IASB”). These Consolidated Financial Statements incorporate a significant accounting change due to the adoption of IFRS 16 “Leases” . See new accounting policies in letter t) of this section and disclosures related to impacts and criteria applied are set forth in Note 2 - Accounting Changes. Notes to these Consolidated Financial Statements contain information additional to that disclosed in the Consolidated Statements of Financial Position, Consolidated Statements of Income, Consolidated Statements of Other Comprehensive Income, Consolidated Statements of Changes in Equity, and Consolidated Statements of Cash Flows. 1. The business combination was a “reverse acquisition” as established in IFRS 3 “Business Combinations” , in which Banco Itaú Chile is the successor for accounting purposes and Corpbanca is the legal successor.
Consolidation criteria	c) Consolidation criteria These Consolidated Financial Statements comprise the preparation of the Financial Statements of the Bank and the controlled entities which participate in the consolidation as of December 31, 2019 and 2018 and for the years ended December 31, 2019, 2018 and 2017, and include the necessary adjustments and reclassifications to standardize the accounting policies and valuation criteria applied by the Bank, in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS-IASB”). Intercompany balances and any unrealized income or loss arising from intercompany transactions are eliminated upon consolidation during the preparation of the Consolidated Financial Statements. (i) The Bank, regardless of the nature of its involvement with an entity (the investee), shall determine whether it is a parent by assessing whether it controls the investee. The Bank controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Thus, the Bank controls an investee if and only if has all the following: 1) Power over the investee, which is related to the existing rights that give the Bank the current ability to direct the relevant activities, these being those that significantly affect the investee’s returns; 2) Exposure, or rights, to variable returns from its involvement with the investee; 3) Ability to use its power over the investee to affect the amount of the Bank’s returns; When the Bank has less than a majority of the voting rights over an investee, but such voting rights are sufficient to have the actual ability to direct the relevant activities, then it will be concluded that the Bank has control over the investee. The Bank considers all relevant factors and circumstances when assessing if the voting rights are sufficient to obtain control, these include: · The amount of voting rights held by the Bank in relation to the amount and dispersion of those held by other vote holders. · Potential voting rights held by the Bank, other voting holders or other parties. · Rights that arise from other contractual agreements. · Any additional facts and circumstances that indicate that the Bank has, or does not have, the current ability to direct the relevant activities at the time those decisions need to be made, including the patterns of voting behavior in previous shareholders meetings. The Bank reassesses whether or not it has control over an investee when facts and circumstances indicate that there are changes in one or more of the control elements listed above. The financial statements of the controlled companies are consolidated with those of the bank through the global integration method (line by line). In accordance with this method, all balances and transactions between consolidated companies are eliminated upon consolidation. Therefore, the Consolidated Financial Statements refer to assets, liabilities, equity, income, expenses, and cash flows of the parent and its subsidiaries presented as if they were a single economic entity. The Bank prepares Consolidated Financial Statements using uniform accounting policies for transactions and other events that, being similar, have occurred in similar circumstances. Note 1 – General Information and Summary of Significant Accounting Policies, continued The following table details the entities controlled by Itaú Corpbanca: Ownership percentage Functional As of December 31, 2019 As of December 31, 2018 Market Country currency Direct Indirect Total Direct Indirect Total % % % % % % Itaú Corredores de Bolsa Limitada (1) (10) (12) National Chile $ Itaú Administradora General de Fondos S.A. (1) (9) Chile $ Itaú Corredores de Seguros S.A. (1) (5) (8) Chile $ Itaú Asesorías Financieras S.A. (1) (7) (14) Chile $ CorpLegal S.A. (1) (13) (15) Chile $ — — — Recaudaciones y Cobranzas Limitada (1) (11) Chile $ Itaú Corpbanca New York Branch (1) (6) Foreign USA US$ — — Itaú Corpbanca Colombia S.A. (2) (16) Colombia COP$ — — Itaú Corredor de Seguro Colombia S.A. (2) Colombia COP$ — — Itaú Securities Services Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ Itaú Comisionista de Bolsa Colombia S.A (2) (16) Colombia COP$ Itaú Asset Management Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ — — Itaú (Panamá) S.A. (3) (16) Panama US$ — — Itaú Casa de Valores S.A (4) (16) Panama US$ — — (1) Companies regulated by the Commission for the Financial Market, hereinafter CMF (formerly Superintendency of Securities and Insurance – SVS). (2) Companies regulated by the Colombian Financial Superintendency (SFC), which has a supervision agreement with the CMF. (3) Company regulated by the Superintendency of Banks of Panama. (4) Company regulated by the Superintendency of the Securities Market of Panama. (5) On April 1, 2018, the merger of Corpbanca Corredores de Seguro S.A. and Itaú Chile Corredora de Seguros Limitada took place. (6) Company regulated by the Office of the Comptroller of the Currency (OCC) and the Federal Reserve (FED). (7) On July 4, 2018, Itaú Asesorías Financieras acquired 2 shares of the company to minority shareholders, therefore Itaú Corpbanca and subsidiaries controls, directly and indirectly, 100% of the company’s shares. (8) On September 10, 2018, Itaú Corpbanca acquired 127,901 shares of the company to minority shareholders, therefore Itaú Corpbanca controls, directly and indirectly, 100% of the company’s shares. (9) On December 10, 2018, Itaú Corpbanca acquired 1 share from a minority investor, thereby controlling (directly and indirectly) 100% of the entity. (10) On August 1, 2018, the corporate name of Itaú Corpbanca Corredores de Bolsa S.A. was changed to Itaú Corredores de Bolsa Limitada. (11) On May 2, 2019, Itaú Corpbanca Recaudaciones y Cobranzas S.A (Instacob) acquired from Itaú Corredores de Bolsa its participation in Itaú Asesorías Financieras. (12) On May 2, 2019, Itaú Corredores de Bolsa acquired from Itaú Asesoría Financieras its participation on Instacob (Itaú Corpbanca Recaudaciones y Cobranzas S.A). (13) On May 2, 2019 Itaú Corredores de Bolsa sold to Itaú Corpbanca the participation in Corplegal, with which Itaú Corpbanca becomes a 100% shareholder of the entity. (14) On May 2, 2019 Itaú Asesoría Financieras modifies its legal statute turning from a public company (S.A.) to a private limited company. (15) On May 20, 2019, the dissolution of Corplegal S.A. took place. (16) On December 3, 2019 Itaú Corpbanca completed the acquisition of Itaú Corpbanca Colombia shares owned by Helm LLC and Kresge Stock Holding Company Inc. Note 1 – General Information and Summary of Significant Accounting Policies, continued (ii) Associated entities are those over which the Bank has significant influence; although not control or joint control. If the Bank holds, directly or indirectly (e.g. through subsidiaries), 20% or more of the voting power of the investee, it is presumed that the Bank has significant influence, unless it can be clearly demonstrated that this is not the case, and subsequently increased or decreased to recognize either the Bank’s proportional share in the net profit or loss of the associate and other movements recognized in its equity. The lower value arising from the acquisition of an associate is included in the book value of the investment net of any accumulated impairment loss. Other factors considered to determine the significant influence on an entity are the representations in the Board of Directors and the existence of material transactions. The existence of these factors could determine the existence of significant influence on an entity, despite having a participation of less than 20% of the shares with the right to vote. The following entities are classified as “Associates”, were the Bank has an interest and are accounted for using the equity method, according to IAS 28: As of December 31, Associate Main Operation Operation Place 2019 % Share Nexus S.A Credit and debit card operator Santiago, Chile 12.90 % Transbank S.A Credit card operator Santiago, Chile 8.72 % Itaú Corpbanca exercises significant influence by virtue of its voting right to appoint a representative in the Board of Directors for each one of these entities. This, among other business considerations, led Management to conclude that, in 2019, Itaú Corpbanca gained significant influence over the aforementioned entities. (iii) Shares or rights in other companies are those in which the Bank has no control or significant influence. Such holdings are recorded at fair value through profit and loss or at fair value through other comprehensive income, when the Bank has irrevocably elected at initial recognition to recognize in this category, without recycling to profit or loss, according to IFRS 9 “Financial instruments” . (iv) The Bank and its subsidiaries manage assets held in publicly offered investment funds and other investment vehicles on behalf of investors and receive market-rate compensation for providing this type of services. Managed funds belong to third parties and, therefore, are not included in the Consolidated Statement of Financial Position. The Bank provides trust commissions and other fiduciary services that result in the participation or investment of assets by clients. Assets held in a fiduciary activity are not reported in the Consolidated Financial Statements, since they are not Bank assets and there is no control over them. Contingencies and commitments arising from this activity are disclosed in Note 23 - Contingencies, Commitments, and Responsibilities, letter c), related to Responsibilities recorded in off-balance-sheet accounts. Note 1 – General Information and Summary of Significant Accounting Policies, continued In accordance with IFRS 10 “ Consolidated Financial Statements ,” for consolidation purposes, the role of the Bank and its subsidiaries with respect to the managed funds must be evaluated to determine whether it is acting as Agent or Principal. According to this standard, an Agent is a party primarily engaged in acting on behalf and for the benefit of another party or parties (the Principal or Principals) and, therefore, it does not control the investee when it exercises decision-making authority. This evaluation must take into account the following aspects: · Scope of its decision-making authority over the investee. · Rights held by other parties · The remuneration to which it is entitled to in accordance with the remuneration agreements. · Decision-maker’s exposure to variability of returns from other interests that it holds in the investee. The Bank does not control or consolidate any trusts or other entities related to this type of business. The Bank manages the funds on behalf and for the benefit of investors, acting solely as an Agent. The assets managed by the Bank and its subsidiaries are owned by third parties. Under this category, and in accordance with the aforementioned standard, they do not control the assets when they exercise their decision-making authority. Therefore, as of December 31, 2019 and 2018 they act as Agent and none of these investment vehicles is consolidated.
Non-controlling interest	d) Non-controlling interest Non-controlling interest represents the portion of net income or loss and net assets which the Bank does not own, either directly or indirectly. It is disclosed as “Attributable to non-controlling interest” separately in the Consolidated Statement of Income. Additionally, non-controlling interests are presented in the Consolidated Statement of Financial Position under the heading "Non-controlling interest", separately from the equity attributable to owners of the Bank. Changes in a parent’s ownership interest in a subsidiary that do not result in a loss of control are equity transactions (i.e. transactions with owners in their capacity as owners). The Bank attributes the profit or loss for the period and each component of other comprehensive income to the owners of the Bank and to non-controlling interests. The Bank also attributes total comprehensive income to the owners of the Bank and non-controlling interests even if the results of the non-controlling interests result in a debit balance.
Business combination and goodwill	e) Business combination and goodwill Business combinations are accounted for using the acquisition method. The consideration transferred in a business combination is measured at fair value, which is calculated as the sum of the acquisition-date fair values of the assets transferred by the Bank, liabilities incurred by the Bank to the former owners of the acquiree and the equity interests issued by the Bank in exchange for control of the acquiree. Acquisition costs incurred are expensed and included in administrative expenses. When Itaú Corpbanca and its subsidiaries (the Group) acquires a business, evaluates the identifiable assets acquired and liabilities assumed to determine proper classification and designation based on contractual conditions, economic circumstances, and other relevant conditions as of the acquisition date. This includes the assessment of whether an embedded derivative should be separated from a host contract in accordance with IFRS 9. Note 1 – General Information and Summary of Significant Accounting Policies, continued Goodwill, defined as the difference between the consideration transferred and the amount recognized for the non-controlling interest in the net identifiable assets acquired and liabilities assumed, is measured initially at cost. If this consideration is less than the fair value of the net assets of the acquired subsidiary, the difference is recognized directly in profit or loss as of the acquisition date. After initial recognition, goodwill is measured at cost less any accumulated impairment losses. Goodwill acquired in a business combination is assigned, from the date of acquisition, to each of the Group’s cash generating units (CGU) (or group of CGUs) that are expected to benefit from the combination, independently of whether other assets or liabilities of the acquiree are assigned to those units. When goodwill is allocated to a CGU (or group of CGUs) and an operation within that unit is sold, the goodwill associated with that operation is included in the carrying amount of the operation sold when determining the gain or loss on disposal. Goodwill that is derecognized under such circumstances is measured on the basis of the relative values of the operation disposed of and the retained portion of the CGU (or group of CGUs).
Functional and presentation currency	f) Functional and presentation currency The Bank has defined as its functional and presentation currency the Chilean peso, which is the currency of the primary economic environment in which the Bank operates and the currency that influences its costs and revenue structure. Therefore, all balances and transactions denominated in currencies other than the Chilean peso are treated as "foreign currency". The Bank translates accounting records of its New York branch and subsidiaries in Colombia and Panama into Chilean pesos from US dollars and Colombian pesos, as applicable, in accordance with IAS 21 "Effects of the Variations in the Exchange Rates of the Foreign Currency" . All amounts in the Consolidated Statements of Income, Consolidated Statements of Other Comprehensive Income and the Consolidated Statements of Financial Position are translated into Chilean pesos according to the exchange rate indicated in letter g) below. None of the markets in which Itaú Corpbanca and its subsidiaries operate qualify as a hyperinflationary economy.
Foreign currency	g) Foreign currency Transactions in foreign currency are initially recorded by the Bank at the exchange rates of their respective functional currencies at the date these transactions first meet the conditions for their recognition. Monetary assets and liabilities denominated in foreign currency are converted at the closing exchange rate of the functional currency in force at the closing date of the reporting period. All differences arising from the settlement or conversion of monetary items are recorded in income, except for those that correspond to monetary items that are part of the hedge of a net investment in a foreign operation, for which the cumulative difference is recorded in equity and subsequently reclassified to profit and loss (on disposal). Tax effects attributable to the exchange differences on such monetary items are also recorded in Other Comprehensive Income. Non-monetary items in foreign currency, which are measured in terms of historical cost, are converted using the exchange rate on the date of the transaction. Non-monetary items that are measured at their fair value in foreign currency are translated using the exchange rates on the date on which that fair value is measured. Gains or losses arising from the translation of non-monetary items measured at their fair value are recognized based on how the gains and losses arising from the change in fair value are recognized in Other Comprehensive Income or in Income, in accordance with IAS 21. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank grants loans and receives deposits in amounts denominated in foreign currency, mainly in US dollars and Colombian pesos. Balances in the financial statements of the consolidated entities whose functional currency is different from the Chilean peso are converted into the presentation currency, according to the following criteria: · Assets and liabilities, by using exchange rates as of the date of the Consolidated Financial Statements. · Income and expenses and cash flows, by using the exchange rates as of the date of each transaction. Exchange differences arising from translating balances into functional currencies of the consolidated entities other than Chilean pesos into Chilean pesos, are recorded as "Exchange differences" in Equity under the line item "Valuation accounts", until they meet the derecognition criteria for the Consolidated Statement of Financial Position, and is subsequently recorded in profit or loss. The net amount of foreign exchange gains and losses includes the recognition of the effects of changes in the exchange rates over assets and liabilities denominated in foreign currencies and gains and losses arising from exchange rates changes affecting current and future transactions (highly probable transactions) entered into by the Bank. Assets and liabilities in foreign currencies are shown at their equivalent amount in Chilean pesos, calculated using the exchange rate of $748.77 per US$1 (US dollar) as of December 31, 2019 ($694.73 as of December 31, 2018 and $614.48 as of December 31, 2017) and the exchange rate of $0.2284 per COP$1 (Colombian peso) as of December 31, 2019 ($0.2139 as of December 31, 2018 and $0.2058 as of December 31, 2017). The financial statements of the New York branch, as well as the Colombian and Panamanian subsidiaries, have been translated using these exchange rates for consolidation purposes, in accordance with IAS 21, related to the valuation of investments abroad in countries with stable economies.
Use of estimates and judgments	h) Use of estimates and judgments The preparation of the Consolidated Financial Statements requires Bank’s management to make estimates, judgments and assumptions that affect the application of the accounting policies and the reported balances of assets and liabilities, disclosures of contingencies with respect to assets and liabilities as of the date of the Consolidated Financial Statements, as well as income and expenses during the year. Actual results may differ from these estimates. Estimates and relevant assumptions are regularly reviewed by Management in order to properly measure some assets, liabilities, income, and expenses. Accounting estimates changes due to reviews are recognized in the year in which the estimate is reviewed and in any future period affected. In certain cases, International Financial Reporting Standards requires that assets and liabilities be recorded or disclosed at their fair values. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction in the principal (or most advantageous) market at the measurement date under current market conditions (i.e. an exit price) regardless of whether that price is directly observable or estimated using another valuation technique. When market prices in active markets are available, they have been used as a basis for valuation. When market prices in active markets are not available, the Bank has estimated those values as values based on the best available information, including the use of modeling and other valuation techniques. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank has established allowances to cover expected credit losses over its loan portfolio and other financial assets. These allowances must be regularly reviewed taking into consideration factors such as changes in the nature and volume of the loan portfolio, trends in forecasted portfolio quality, credit quality and economic conditions that may adversely affect the borrowers’ ability to pay. Increases in the allowances for loan losses are reflected as “Provision for loan losses” in the Consolidated Statement of Income. Loans are charged-off when the Bank’s management determines that a loan or a portion thereof is impaired. Charge-offs are recorded as a reduction of the allowance for loan losses. In particular, information on significant areas of estimate due to uncertainties and critical judgments in the application of accounting policies that have the most important effect on the amounts recorded in the Consolidated Financial Statements are the following: · Allowances for loan losses · Fair value of financial assets and liabilities · Contingencies and commitments · Impairment losses of certain assets, including Goodwill · Current taxes and deferred taxes During the year ended December 31, 2019, there have been no significant changes compared with the prior year, other than those indicated in Note 2 to these Consolidated Financial Statements.
Operating segments	i) Operating segments The Bank provides financial information for each operating segment in conformity with IFRS 8 “Operating Segments” in order to disclose information that enables financial statement users to evaluate the nature and financial effects of the business activities in which the Bank engages and the economic environments in which it operates and to allow them to: · Better understand the Bank’s performance. · Better evaluate its future cash flow projections. · Form better opinions regarding the Bank as a whole. To comply with IFRS 8, Itaú Corpbanca identifies operating segments (Chile and Colombia) used by the Executive Committee to analyze and make decisions regarding operating, financing and investment matters, based on the following elements: (1) The nature of the products and services; (2) The nature of the processes; (3) The type or class of customer for their products and services; (4) The methods used to distribute their products or provide their services; and (5) If applicable, the nature of the regulatory environment, for example, banking, insurance or public utilities. The Executive Committee manages these segments using an in-house system of internal profitability reports and reviews its segments on the basis of the operating results and uses efficiency, profitability and other indicators to evaluate performance and allocate resources. The Bank has also included geographic disclosures on its operations in New York and Colombia. More information on each segment is presented in Note 4 - Reporting Segments.
Operations with repurchase and resale agreements	j) Operations with repurchase and resale agreements Transactions with resale agreements are entered into as a form of investment. Under these agreements, financial instruments are sold, which are included as assets under "Investments under resale agreement” and are accounted for at amortized cost using the effective interest rate of the agreement. There are also sales transactions with a repurchase agreement as a form of financing. In this regard, the investments that are sold subject to a repurchase obligation and that serve as collateral for the loan, form part of the investment items of "Financial instruments at fair value through profit or loss" or "Financial instruments at fair value through profit or loss". The obligation to repurchase the investment is classified in liabilities as "Repurchase agreements and securities loans", recognizing interest and inflation-indexation adjustments accrued as of the closing date.
Derivatives and hedging activities	m) Derivatives and hedging activities The Bank has elected to continue applying the hedge accounting requirements of IAS 39 on adoption of IFRS 9. The Bank has not provided comparative information for prior periods on the date of initial application of IFRS 9 for the new disclosures introduces by IFRS 9 as a consequential amendment to IFRS 7, as permitted by IFRS 7 paragraph 44z. For presentation purposes, derivatives are presented in accordance with its positive or negative fair value as assets or liabilities, respectively, and include trading and hedging instruments separately (see Note 8). Hedging transactions The Bank has elected to continue applying the hedge accounting requirements in IAS 39 instead of the requirements of IFRS 9, thus the Bank uses financial derivatives for the following purposes: i. to sell to customers who request these instruments in the management of their market and credit risks; ii. to use these derivatives in the management of the risks of the Bank entities’ own positions and assets and liabilities (“hedging derivatives”), and iii. to obtain profits from changes in the price of these derivatives (trading derivatives). All financial derivatives that are not held for hedging purposes are accounted for as trading derivatives. A derivative qualifies for hedge accounting if all the following conditions are met: i. a. Changes in the value of assets and liabilities due to fluctuations, among others, in the interest rate and/or exchange rate to which the position or balance to be hedged is subject (“fair value hedge”); b. Changes in the estimated cash flows arising from financial assets and liabilities, and highly probable forecasted transactions (“cash flow hedge”); c. The net investment in a foreign operation (“hedge of a net investment in a foreign operation”). ii. a. At the date of arrangement the hedge is expected, under normal conditions, to be highly effective (“prospective effectiveness”). b. There is sufficient evidence that the hedge was actually effective during the life of the hedged item or position (“retrospective effectiveness”). iii. There must be adequate documentation evidencing the specific designation of the financial derivative to hedge certain balances or transactions and how this effective hedge was expected to be achieved and measured, provided that this is consistent with the Bank’s management of own risks. Note 1 – General Information and Summary of Significant Accounting Policies, continued The changes in the value of financial instruments qualifying for hedge accounting are recorded as follows: a. For fair value hedges, the gains or losses arising on both hedging instruments and the hedged items (attributable to the type of risk being hedged) are included as “Net income (expense) from financial operations” in the Consolidated Statement of Income. b. For fair value hedges of interest rate risk on a portfolio of financial instruments, gains or losses that arise in measuring hedging instruments within “Interest income and expense”, and other gains or losses due to changes in fair value of the underlying hedged item (attributable to the hedged risk) are recorded in the Consolidated Statement of Income under “Net income (expense) from financial operations”. c. For cash flow hedges, the change in fair value of the hedging instrument is included as “Cash flow hedge” in “Other comprehensive income”. d. The differences in valuation of the hedging instrument corresponding to the ineffective portion of the cash flow hedging transactions are recorded directly in the Consolidated Statements of Income under “Net income (expense) from financial operations”. If a derivative designated as a hedging instrument no longer meets the conditions described above due to expiration, ineffectiveness or for any other reason, hedge accounting treatment is discontinued. When “fair value hedging” is discontinued, the fair value adjustments to the carrying amount of the hedged item arising from the hedged risk are amortized to gain or loss from that date, where applicable. Sources of hedge ineffectiveness may arise from basis risk, including but not limited to the discount rates used for calculating the fair value of derivatives, hedges using instruments with a non-zero fair value, and notional and timing differences between the hedged items and hedging instruments. When cash flow hedges are discontinued, any cumulative gain or loss of the hedging instrument recognized under “Other comprehensive income” (from the period when the hedge was effective) remains recorded in equity until the hedged transaction occurs, at which time it is recorded in the Consolidated Statements of Income, unless the transaction is no longer expected to occur, in which case any cumulative gain or loss is recorded immediately in the Consolidated Statement of Income.
Fair value measurement	n) Fair value measurement In general, financial assets and liabilities are initially recognized at fair value which, in the absence of evidence to the contrary, is deemed to be the transaction price. Financial instruments, other than those measured at fair value through profit or loss, are initially recognized at fair value plus transaction costs. Subsequently, and at the end of each reporting period, financial instruments are measured pursuant to the following criteria: (i) Valuation of financial instruments Financial assets are measured according to their fair value, gross of any transaction costs that may be incurred in the course of a sale, except for loans and accounts receivable from customers. According to IFRS 13 “Fair Value Measurement”, “Fair value” is defined as 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. When measuring fair value an entity shall take into account the characteristics of the asset or liability if market participants would take those characteristics into account when pricing the asset or liability at the measurement date. Note 1 – General Information and Summary of Significant Accounting Policies, continued The fair value measurement assumes that the transaction to sell the asset or transfer the liability takes place either: (a) in the principal market for the asset or liability, or (b) in the absence of a principal market, the most advantageous market for the asset or liability. Even when there is no observable market to provide pricing information in connection with the sale of an asset or the transfer of a liability at the measurement date, the fair value measurement shall assume that the transaction takes place, considered from the perspective of a potential market participant who intends to maximize value associated with the asset or liability. When using valuation techniques, the Bank shall maximize the use of relevant observable inputs and minimize the use of unobservable inputs as available. If an asset or a liability measured at fair value has a bid price and an ask price, the price within the bid-ask spread that is most representative of fair value in the circumstances shall be used to measure fair value regardless of where the input is categorized within the fair value hierarchy (i.e. Level 1, 2 or 3). IFRS 13 establishes a fair value hierarchy that categorizes into three levels the inputs to valuation techniques used to measure fair value. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1 inputs) and the lowest priority to unobservable inputs (Level 3 inputs). All derivatives are recorded in the Consolidated Statements of Financial Position at the fair value previously described. This value is compared to the valuation as at the trade date. If the fair value is subsequently measured positive, this is recorded as an asset. If the fair value is subsequently measured negative, this is recorded as a liability. The fair value on the trade date is deemed, in the absence of evidence to the contrary, to be the transaction price. The changes in the fair value of derivatives from the trade date are recorded in “Net income (expense) from financial operations” in the Consolidated Statement of Income. Specifically, the fair value of financial derivatives included in the portfolios of financial assets or liabilities held for trading is deemed to be their daily quoted price. If, for exceptional reasons, the quoted price cannot be determined on a given date, the fair value is determined using similar methods to those used to measure over the counter (OTC) derivatives. The fair value of OTC derivatives is the sum of the future cash flows resulting from the instrument, discounted to present value at the date of valuation (“present value” or “theoretical close”) using valuation techniques commonly used by the financial markets: “net present value” (NPV) and option pricing models, among other methods. Also, within the fair value of derivatives are included Credit Valuation Adjustment (CVA) and Debit Valuation Adjustment (DVA), all with the objective that the fair value of each instrument includes the credit risk of its counterparty and Bank’s own risk. The Credit valuation adjustment (CVA) is a valuation adjustment to OTC derivatives as a result of the risk associated with the credit exposure assumed by each counterparty. The CVA is calculated taking into account potential exposure to each counterparty in each future period. The debit valuation adjustment (DVA) is a valuation adjustment similar to the CVA but, in this case, it arises as a result of the Bank’s own risk assumed by its counterparties in OTC derivatives. (ii) Valuation techniques Financial instruments at fair value, determined on the basis of price quotations in active markets, include government debt securities, private sector debt securities, equity shares, short positions, and fixed-income securities issued. Note 1 – General Information and Summary of Significant Accounting Policies, continued In cases where price quotations cannot be observed in available markets, the Bank’s management determines a best estimate of the price that the market would set using its own internal models. In most cases, these models use data based on observable market parameters as significant inputs however for some valuations of financial instruments, significant inputs are unobservable in the market. To determine a value for those instruments, various techniques are employed to make these estimates, including the extrapolation of observable market data. The most reliable evidence of the fair value of a financial instrument on initial recognition usually is the transaction price, however due to lack of availability of market information, the value of the instrument may be derived from other market transactions performed with the same or similar instruments or may be measured by using a valuation technique in which the variables used include only observable market data, mainly interest rates. The main techniques used as of December 31, 2019 and 2018 by the Bank’s internal models to determine the fair value of the financial instruments are as follows: i. In the valuation of financial instruments permitting static hedging (mainly forwards and swaps), the present value method is used. Estimated future cash flows are discounted using the interest rate curves of the related currencies. The interest rate curves are generally observable market data. ii. In the valuation of financial instruments requiring dynamic hedging (mainly structured options and other structured instruments), the Black- Scholes model is normally used. Where appropriate, observable market inputs are used to obtain factors such as the bid-offer spread, exchange rates, volatility, correlation indexes and market liquidity. iii. In the valuation of certain financial instruments exposed to interest rate risk, such as interest rate futures, caps and floors, the present value method (futures) and the Black-Scholes model (plain vanilla options) are used. The main inputs used in these models are observable market data, including the related interest rate curves, volatilities, correlations and exchange rates. The fair value of the financial instruments calculated by the aforementioned internal models considers contractual terms and observable market data, which include interest rates, credit risk, exchange rates, quoted market price of shares, volatility and prepayments, among others. The Bank’s management considers that its valuation models are not significantly subjective, since these methodologies can be adjusted and evaluated, as appropriate, through the internal calculation of fair value and the subsequent comparison with the related actively traded price.
Recognizing income and expenses	o) Recognizing income and expenses The most significant criteria used by the Bank to recognize its revenues and expenses are summarized as follows: (i) Interest income, interest expense, and similar items Interest income and expense are recorded on an accrual basis using the effective interest method. Interest income is calculated by applying the effective interest rate to the gross carrying amount of financial assets, except for financial assets that have subsequently become credit-impaired (or ‘stage 3’), for which interest revenue is calculated by applying the effective interest rate to their amortized cost (i.e. net of the ECL provision). Note 1 – General Information and Summary of Significant Accounting Policies, continued (ii) Dividends received Dividends received from investments in other companies are recognized on income when the right to receive them arises and are recorded in the item “Income from investments in companies”. (iii) Commissions, fees, and similar items Fee and commission income and expenses are recognized in the Consolidated Statement of Income as set forth on IFRS 15 “Revenue from contracts with customers”, based on the terms of the contract held with customers, excluding amounts collected on behalf of third parties.The Bank recognizes revenue as the performance obligations is fulfilled by transferring a service to a customer; under this definition an asset is transferred when (or as) the customer obtains control of that asset or a services is rendered. The Bank considers the terms of the contract and its customary business practices to determine the transaction price. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties. The Bank transfers control of a good or service over time and, therefore, satisfies a performance obligation and recognizes revenue over time, and/or the Bank satisfies the performance obligation at a point in time. The main revenues arising from commissions, fees and similar items correspond to: · Fees and commissions for lines of credits and overdrafts: includes accrued fees related to granting lines of credit and overdrafts in checking accounts. · Fees and commissions for guarantees and letters of credit: includes accrued fees in the period relating to granting of guarantee payment for current and contingent third party obligations. · Fees and commissions for card services: includes accrued and earned commissions in the period related to use of credit cards, debit cards and other cards · Fees and commissions for management of accounts: includes accrued commissions for the maintenance of checking, savings and other accounts · Fees and commissions for collections and payments: includes income arising from collections and payments services provided by the Bank. · Fees and commissions for intermediation and management of securities: includes income from brokerage, placements, administration and securities’ custody services. · Fees and commissions for insurance brokerage fees: includes income arising for insurances distribution. · Other fees and commissions: includes income arising from currency changes, financial advisory, cashier check issuance, placement of financial products and online banking services. The main expenses arising from commissions, fees and similar items correspond to: · Compensation for card operation: includes commission expenses for credit and debit card operations related to income commissions’ card services. · Fees and commissions for securities transactions: includes commissions’ expense for deposits, securities custody service and securities’ brokerage. · Other fees and commissions: includes mainly expenses generated from online services. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank has incorporated disaggregated revenue and expense disclosures and reportable segment relationship in Note 26. Additionally, the Bank grants a group of benefits to its cardholders for which, in accordance with IFRS 15, has established provisions enough to comply with its performance obligations when these benefits become enforceable. Revenue recognition accounting and disclosures for the year 2017 was under IAS 18 “Revenue recognition”, fees and commission income and expense were recognized in according to their nature. The main criteria was: · Fee and commission income and expenses on financial assets and liabilities were recognized when they are earned. · Those arising from transactions or services that were performed over a period of time, were recognized over the life of these transactions or services. · Those relating to services provided in a single transaction were recognized when the single transaction was performed. (iv) Loan arrangement fees Fees that arise as a result of the origination of a loan, mainly application and analysis-related fees, are deferred and charged to the Consolidated Statement of Income over the term of the loan. In the case of commitment fees these are immediately recorded in the Consolidated Statement of Income when it is unlikely that a specific lending arrangement will be entered into and the loan commitment is not measured at FVTPL.
Impairment	p) Impairment Assets are acquired or purchased based on the future economic benefits they produce. Accordingly, impairment is recorded when the carrying amount of those assets is lower than the recoverable amount, assets are subject to impairment tests in order to properly reflect the future economic benefits that assets are capable to produce when used by the Bank. The Bank assesses on a forward-looking basis the expected credit losses (ECL) associated with its debt instrument assets carried at amortized cost and FVOCI and with the exposure arising from loan commitments and financial guarantee contracts. The Bank recognizes a loss allowance for such losses at each reporting date. The measurement of ECL reflects: · An unbiased and probability-weighted amount that is determined by evaluating a range of possible outcomes; · The time value of money; and Reasonable and supportable information that is available without undue cost or effort at the repotting date about past events, current conditions and forecasts of future economic conditions. The Bank follows the criteria described below in order to assess impairment, when applicable: (i) A financial asset, other than those recorded at fair value through profit and loss, is evaluated on each financial statement reporting date in order to determine whether objective evidence of impairment exists. At the end of each reporting period the Bank assesses if objective evidence exist for a financial asset or group of financial assets to be impaired. Note 1 – General Information and Summary of Significant Accounting Policies, continued A financial asset or group of financial assets will be impaired if, and only if, objective evidence of impairment exists as a result of one or more events that occurred after initial recognition of the asset (“event causing the loss”), and this event or events causing the loss have an impact on the estimated future cash flows of a financial asset or group of financial assets. An impairment loss relating to financial assets recorded at amortized cost is calculated as the difference between the recorded amount of the asset and the present value of estimated future cash flows, discounted at the financial asset’s original effective interest rate. Objective evidence for an asset or group of assets to be impaired includes the following events that cause losses: (i) significant financial difficulties of the issuer or debtor; (ii) noncompliance of the terms of the contract; (iii) the lender, due to economic or legal reasons related to financial difficulties of the debtor, grants waivers or give unusual conditions that will not be granted in normal circumstances; (iv) it is probable that the debtor is in bankruptcy or in another form of financial reorganization; (v) there is no longer a market for the financial asset due to financial difficulties; or (vi) observable data indicates that since initial recognition of a group of financial assets there is a decrease in the estimated future cash flows regardless of individual identification for each asset, including data about: (a) adverse changes in the payment behavior of debtors in the group; or (b) local or national economic conditions correlated to non-compliant in the group. Individually significant financial assets are individually assessed to determine their impairment. The remaining financial assets are collectively evaluated in groups that share similar credit risk characteristics. Impairment loss for available for sale investments is calculated as the difference between the acquisition cost (net of any principal reimbursement) and the current fair value less any impairment loss previously recorded in income. For equity investments classified as available for sale investment, objective evidence includes a significant and extended decrease under the initial fair value of the invested amount. In the case of debt instruments classified as available for sale investments, the Bank assess if objective evidence for impairment exist based on the criteria used for assessing loans impairment losses. If impairment evidence exists, any amount previously recorded in equity is transferred from equity to the Consolidated Statement of Income, presented as available for sale investments net gains or losses. This amount is calculated as the difference between acquisition cost (net of any amortization and reimbursement) and the current fair value of the asset, less any impairment loss on the investment previously recorded in the Consolidated Statement of Income. In respect to equity financial investments, impairment losses previously recognized in the Consolidated Statement of Income are not reversed through income. Any increase in fair value subsequent to an impairment loss is recognized in other comprehensive income and accumulated under available for sale investments as part of “Valuation accounts”. All impairment losses are recorded in income. Any impairment loss relating to a financial asset available for sale previously recorded in equity is transferred to profit or loss. The reversal of an impairment loss occurs only if it can be objectively related to an event occurring after the initial impairment loss was recorded. The reversal of an impairment loss shall not exceed the carrying amount that would have been determined if no impairment loss has been recognized for the asset in prior years. The reversal is recorded in income with the exception of available for sale equity financial assets, in which case it is recorded in other comprehensive income. Note 1 – General Information and Summary of Significant Accounting Policies, continued (ii) The Bank’s non-financial assets, are reviewed at each reporting date to determine whether they show signs of impairment (i.e. its carrying amount exceeds its recoverable amount). If any such evidence exists, the recoverable amount of the asset is estimated, in order to determine the extent of the impairment loss. If the recoverable amount of an asset is estimated to be less than its carrying amount, the carrying amount of the asset is reduced to its recoverable amount. An impairment loss is recognized immediately in profit or loss. Recoverable amount is the higher of fair value less costs to sell and value in use. In assessing value in use, the estimated future cash flows are 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 for which the estimates of future cash flows have not been adjusted. In connection with other assets, impairment losses recorded in prior periods are assessed at each reporting date to determine whether the loss has decreased and should be reversed. The increased carrying amount of an asset other than goodwill attributable to a reversal of an impairment loss shall not exceed the carrying amount that would have been determined (net of amortization or depreciation) had no impairment loss been recognized for the asset in prior years. Goodwill impairment is not reversed. The Bank shall assess at the end of each reporting period whether there is any indication that an impairment loss recognized in prior periods for an asset other than goodwill may no longer exist or may have decreased. If any such indication exists, the entity shall estimate the recoverable amount of that asset. In assessing whether there is any indication that an impairment loss recognized in prior periods for an asset other than goodwill may no longer exist or may have decreased, an entity shall consider, as a minimum, external sources of information, such as there are observable indications that the asset’s value has increased significantly during the period; significant changes with a favorable effect on the entity have taken place during the period, or will take place in the near future, in the technological, market, economic or legal environment in which the entity operates or in the market to which the asset is dedicated; market interest rates or other market rates of return on investments have decreased during the period, and those decreases are likely to affect the discount rate used in calculating the asset’s value in use and increase the asset’s recoverable amount materially and internal sources of information such as significant changes with a favorable effect on the entity have taken place during the period, or are expected to take place in the near future, in the extent to which, or manner in which, the asset is used or is expected to be used. These changes include costs incurred during the period to improve or enhance the asset’s performance or restructure the operation to which the asset belongs. In the case of goodwill and indefinite useful life intangible assets or not yet available for use the recoverable amount is estimated at least annually. When impairment exists the carrying amount of the asset shall be reduced to its recoverable amount if, and only if, the recoverable amount of an asset is less than its carrying amount. This reduction is an impairment loss. An impairment loss shall be recognized immediately in profit or loss, unless the asset is carried at revalued amount in accordance with another standard. Any impairment loss of a revalued asset shall be treated as a revaluation decrease in accordance with that other standard. When the amount estimated for an impairment loss is greater than the carrying amount of the asset to which it relates, an entity shall recognize a liability if, and only if, that is required by another standard. After the recognition of an Note 1 – General Information and Summary of Significant Accounting Policies, continued impairment loss, the depreciation (amortization) charge for the asset shall be adjusted in future periods to allocate the asset’s revised carrying amount, less its residual value (if any), on a systematic basis over its remaining useful life. If an impairment loss is recognized, any related deferred tax assets or liabilities are determined in accordance with IAS 12 “ Income Taxes ” by comparing the revised carrying amount of the asset with its tax base. Impairment losses recognized in previous years are assessed at the end of each reporting period in order to identify any indication for impairment reduction or disappearance. The increased carrying amount of an asset other than goodwill attributable to a reversal of an impairment loss shall not exceed the carrying amount that would have been determined (net of amortization or depreciation) had no impairment loss been recognized for the asset in prior years. (iii) Goodwill is tested annually in order to determine if impairment losses exist and whenever there is an indication that the carrying value may be impaired. The impairment of goodwill is determined by evaluating the recoverable amount of each CGU (or group of CGUs) to which the goodwill relates. An impairment loss is recognized when the recoverable amount of the CGU is less than its carrying amount. For the purpose of impairment testing, goodwill acquired in a business combination shall, from the acquisition date, be allocated to each of the acquirer’s cash-generating units, or groups of cash-generating units irrespective of whether other assets or liabilities of the acquire are assigned to those units or groups of units. An impairment loss recognized for goodwill shall not be reversed in a subsequent period. According to IAS 36 “ Impairment of Assets ” the annual impairment test for a cash-generating unit to which goodwill has been allocated or for intangible assets with indefinite useful lives may be performed at any time during an annual period, provided the test is performed at the same time every year. Different cash-generating units may be tested for impairment at different times.
Property, plant and equipment	q) Property, plant and equipment Items of property, plant and equipment are measured at acquisition cost, net of accumulated depreciation and impairment, if any. In addition to the price paid to acquire each item, the cost also includes, where applicable, the capitalized cost. The capitalized cost includes expenses attributed directly to the asset acquisition and any other costs directly attributable to the process of placing the asset in conditions to be used. When some part of an item of the plan and equipment are measured has a different useful life to that fixed asset, it is recognized as a separate component (significant components of plan and equipment are measured). This item includes the amounts of property, land, furniture, vehicles, technological equipment and other facilities own by the consolidated entities or acquired under financial leases. These assets are classified based on their use in: (i) Property, plant and equipment for own use includes but is not limited to tangible assets received by the consolidated entities in full or partial satisfaction of financial assets representing accounts receivable from third parties which are intended to be held for continuing own use and tangible assets acquired under finance leases. These assets are presented at acquisition cost less the related accumulated depreciation and, if applicable, any impairment losses (when net carrying Note 1 – General Information and Summary of Significant Accounting Policies, continued amount was higher than recoverable amount). For accounting purposes, acquisition cost of the received asset is considered to be its net amount. Depreciation is calculated using the straight line method over the acquisition cost of assets less their residual value, assuming that the land on which buildings and other structures stand has an indefinite life and, therefore, is not subject to depreciation. Property, plant and equipment in leased properties are depreciated over the shorter period of time between their useful lives or the term of the lease, unless it is certain that the Bank will acquire the property at the end of the lease. Maintenance expenses relating to tangible assets held for own use are recorded as an expense in the period in which they are incurred. (ii) The criteria used to record the acquisition cost of assets leased out under operating leases, to calculate their depreciation and their respective estimated useful lives, and to record the impairment losses thereof, are consistent with those described in relation to property, plant and equipment held for own use. As of January 1, 2019 the Bank has started to apply IFRS 16 “Leases”, see letter t) in this Note.
Intangible assets	r) Intangible assets Intangible assets are identified as non-monetary assets (separately identifiable from other assets) without physical substance which arise as a result of legal or contractual rights or it is separable. The Bank recognizes an intangible asset, whether purchased or self-created (at cost), when the cost of the asset can be measured reliably and it is probable that the future economic benefits that are attributable to the asset will flow to the Bank. The cost of intangible assets acquired in a business combination correspond to its fair value at the acquisition date. Intangible assets are recorded initially at acquisition or production cost and are subsequently measured at cost less any accumulated amortization and any accumulated impairment losses. An entity shall assess whether the useful life of an intangible asset is finite or indefinite and, if finite, the length of, or number of production or similar units constituting, that useful life. An intangible asset shall be regarded by the entity as having an indefinite useful life when, based on an analysis of all of the relevant factors, there is no foreseeable limit to the period over which the asset is expected to generate net cash inflows for the entity. The accounting for an intangible asset is based on its useful life. An intangible asset with a finite useful life is amortized over its useful life, and it is reviewed in order to determine if the asset is impaired, the amortization period and the amortization method shall be reviewed at least at each financial year-end. An intangible asset with an indefinite useful life are not amortized and the entity tests for impairment by comparing its recoverable amount with its carrying amount annually and whenever there is an indication that the intangible asset may be impaired. Internally developed computer software is recorded as an intangible asset if, among other requirements (basically the Bank’s ability to use or sell it), it can be identified and its ability to generate future economic benefits can be demonstrated. Expenditure on research activities is recorded as an expense in the year in which it is incurred and cannot be subsequently capitalized. Note 1 – General Information and Summary of Significant Accounting Policies, continued (i) Software acquired by the Bank is recognized at cost less the accumulated amortization and impairment, if any. The expenses in software developed internally are recorded as assets when the Bank is capable of proving its intention and ability to complete development, when internal use will generate future economic benefits, and when the cost of completing its development can be reliably measured. The capitalized costs of the software developed internally include all the direct costs attributable to the development of the software, and it is amortized over the course of its useful life. Software developed internally is recorded at cost less the accumulated amortization and losses from impairment. The subsequent expenditures associated with the asset are capitalized only when future economic benefits from them will flow to the entity. The rest of the expenditures are recognized in income. Intangible assets are amortized on a straight-line basis over their estimated useful life; starting on the date it is ready for use. (ii) According to IFRS 3 “ Business combinations ”, when an intangible asset is acquired or generated in a business combination it cost will be the fair value at the acquisition date. The fair value of an intangible asset represents expectations of market participants at the acquisition date over the probability that future economic benefits from the asset will flow to the entity. In other words, the entity expects that economic benefits flows to it, even though there is uncertainty about the date or the amount of them. As set forth by IAS 38 “ Intangibles assets ” and IFRS 3 “ Business combinations ”, the acquirer will recognize an intangible asset from the acquiree at the acquisition date separately from Goodwill independently if the asset was previously recognized by the acquiree before the business combination. In connection with the aforementioned, the business combination between Banco Itaú Chile y Corpbanca gave rise to intangible assets and Goodwill as indicated in Note 13 Intangible Assets. (iii) Correspond to those intangible assets that can be identified, the Bank controls them, can be reliably measured and it is probable that future benefits will flow to the Bank.
Factoring transactions	s) Factoring transactions The Bank performs operations with their clients, in which they receive invoices and other credit representative trading instruments with or without recourse to the transferor, anticipating a percentage of the total amount receivable of the borrower upon collection. These transactions are valued at the disbursed amounts by the Bank in exchange for invoices or other credit representative trading instruments. The price differences between the disbursed amounts and the nominal amount of the documents are recorded in the Consolidated Statement of Income as interest income applying the effective interest rate method, over the term of the transaction. The responsibility of payment remains with the client (assignor).
Leases	t) Leases As of January 1, 2019 the Bank adopted IFRS 16 “Leases” , using the modified retrospective method and therefore, no comparative information is required; 2018 and 2017 balances continue to be reported under IAS 17 “Leases” . Note 1 – General Information and Summary of Significant Accounting Policies, continued On the date of commencement of a lease the Bank recognizes a right-of-use asset and a lease liability in accordance with the provisions set forth on IFRS 16 “Leases” . Policy applicable from January 1, 2019 (i) Right-of-use assets At commencement date, the right-of-use asset is measured at cost. The cost of right-of-use asset includes (a) the amount of the initial measurement of the lease liability; (b) any lease payments made at or before the commencement date, less any lease incentives received; (c) the initial direct costs incurred by the Bank; and (d) an estimate of the costs to be incurred by the Bank in dismantling and disposing of the underlying asset, restoring the place where it is located or restoring the underlying asset to the condition required by the terms and conditions of the lease. After the initial recognition date, the Bank measures the assets by the right of use by applying the cost model, which is defined as the asset by the right of use measured at cost (a) less any accumulated depreciation and any accumulated impairment losses; and (b) adjusted by any new measurement of the lease liability. The Bank applies the depreciation requirements established by IAS 16 "Property, plant and equipment" when depreciating the right of use asset. If the lease transfers ownership of the underlying asset to the Bank at the end of the lease term or if the cost of the right-of-use asset reflects that the Bank will exercise a purchase option, the Bank depreciates the right-of-use asset from the start date of the lease to the end of the useful life of the underlying asset. Otherwise, the Bank depreciates the right-of-use asset from the start date to the end of the useful life of the asset to which it has a right of use or to the end of the lease term, whichever occurs first. The Bank applies IAS 36 "Impairment of assets" to determine whether a right of use asset is impaired and to account for identified impairment losses. As of December 31, 2019, the Bank has not identified any impairment for the right-of-use assets under lease. (ii) Lease liability The Bank measured the lease liability as the present value of lease payments that have not been paid as of that date. Lease payments are discounted using the interest rate implicit in the lease, if that rate can be easily determined. If that rate cannot be readily determined, the Bank uses its incremental borrowing rate (cost of funding). The lease payments included in the measurement of the lease liability comprise the following payments for the right-of-use the underlying asset during the term of the not cancelable at the measurement date, which includes (a) fixed payments, less any lease incentive receivable; (b) variable lease payments, which depend on an index or a rate, recently measured using the index or rate on the start date; (c) it matters that the lessee expects to pay as residual value guarantees; (d) the exercise price of a purchase option if the lessee is reasonably sure to exercise that option; and (e) payments for penalties arising from the termination of the lease, if the term of the lease reflects that the lessee exercises an option to terminate the lease. After the date of initial recognition, the Bank measures the lease liability in order to recognize (a) the interest on the lease liability; (b) lease payments made; and (c) the new measurements or modifications of the lease, and also for fixed lease payments that have essentially been reviewed. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank makes new measures of the lease liability discounting the modified lease payments, if (a) there is a change in the expected amounts payable related to a residual value guarantee. A lessee will determine the lease payments to determine the change in the amounts expected to be paid under the residual value guarantee; (b) there will be a change in future lease payments determined from a change in an index or a rate used to determine those payments. The Bank measures the lease liability again to modify the modified lease payments only when there is a change in cash flows. The Bank will determine the revised lease payments, for the remainder of the lease term, based on the revised contractual payments. The rent of the lease agreements is agreed in UF and paid in Chilean pesos. According to that, monthly variation in UF should be treated as a new measurement, and therefore, inflation-indexation adjustments should be recognized as a modification to the obligation and the right-of-use asset. In applying IFRS 16 for the first time, the Bank has used the following practical expedients permitted by the standard: · accounting for operating leases with a remaining lease term of less than 12 months as of January 1, 2019 as short-term leases · excluding initial direct costs for the measurement of the right-of-use asset at the date of initial application. The Bank 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, the Bank relied on its assessment made applying IAS 17. As of January 1, 2019, the Bank measured the lease liability at the present value of the lease payments discounted using the incremental interest rate for loans (cost of funding), which was 2.01%. The average incremental interest rate as of December 31, 2019 is 2.04%. Policy applicable prior to January 1, 2019 (i) Finance leases Finance leases are leases that substantially transfer all the risks and rewards incidental to ownership of the leased asset to the lessee. The Bank recognised as lending to third parties under “Loans and accounts receivable from customers” in the Consolidated Statements of Financial Position, the sum of the present value of the lease payments receivable from the lessee, including the exercise price of the lessee’s purchase option at the end of the lease term, when at the inception of the lease it is reasonably certain that the lessee will exercise the option. When consolidated entities acts as lessees, the leased assets are classified based on their nature in the Consolidated Statements of Financial Position, and recognizing an asset and liability at the same amount (the lower between the fair value of the leased property and the present value of the minimum lease payments, plus purchase option). These assets are depreciated in accordance with property, plant and equipment for own use criterion. In both cases, income and expenses arising from these contracts are recorded under “Interest income and expense” in the Consolidated Statement of Income to achieve constant return rate over the lease term. (ii) Operating leases In operating leases, the ownership of the leased asset and substantially all the risks and rewards incidental thereto remain with the lessor. Note 1 – General Information and Summary of Significant Accounting Policies, continued When the consolidated entities act as a lessor, the leased assets are classified at their acquisition cost under “Property, plant and equipment”. The depreciation criterion for these assets is consistent with that for similar items of property, plant and equipment held for own use and revenues from operating leases are recorded on a straight-line basis under “Other operating income” in the Consolidated Statement of Income. When the consolidated entities act as the lessees, the lease expenses, including any incentives granted by the lessor, are charged on a straight-line basis to “Administrative expenses” in the Consolidated Statement of Income. (iii) Sale and leaseback transactions For sale at fair value and operating leasebacks, the profit or loss generated is recorded at the time of the sale except in the case of excess of proceeds over fair value, which is amortized over the period of use of the asset. In the case of finance leasebacks, the profit or loss generated is amortized over the lease term.
Expected credit losses allowance	u) Expected credit losses allowance The Bank uses an “expected credit loss (ECL)” model. The impairment model applies to all financial assets measured at amortized cost and debt securities measured at fair value through other comprehensive income (FVOCI), including commitment and contingent loans. Investments in equity are outside of the scope of the new impairment requirements. The Bank accounted ECL related to financial assets measured at amortized cost as a loss allowance in the statements of financial position, but the carrying amount of these assets is stated net of the loss allowance. ECL related to contingent loans is accounted for as a provision in the statements of financial position. The Bank recognizes in profit or loss, as an impairment gain or loss, the amount of ECL (or reversal) required to adjust the loss allowance at the reporting date, for financial assets measured at amortized cost and contingent loans. The model uses a dual measurement approach, under which the loss allowance is measured as either: · 12‑month expected credit losses · Lifetime expected credit losses The Bank has defined default on an individual or collective basis as follows: · Individual: when exposure is more than 89 days past due, it has been restructured, it is in judicial collection, or it has been written-off. · Collective: when exposure is more than 89 days past due, it has been restructured, or has been identified as impaired by an internal risk committee. For collective assessment purposes, financial assets are grouped based on characteristics of shared credit risk, considering the type of instrument, credit risk classifications, initial recognition date, remaining term, industry, geographical location of the counterparty, among other significant factors. An instrument is considered to be no longer in default when it no longer meets the default criteria for a consecutive period between 4‑11 months, depending on the type of loan. Note 1 – General Information and Summary of Significant Accounting Policies, continued The ECL measurement basis depends on whether there has been a significant increase in credit risk since initial recognition. Based on changes in credit quality since initial recognition, IFRS 9 outlines a “three-stage” model impairment in accordance with the following diagram: Change in credit quality since initial recognition Stage 1 Stage 2 Stage 3 Initial recognition Significant increase in credit risk (“SICR”) since initial recognition Credit impaired assets 12‑month expected credit losses Lifetime expected credit losses Lifetime expected credit losses The Bank, at the end of each reporting period, evaluates whether a financial instrument’s credit risk has significantly increased since initial recognition or whether an asset is considered to be credit-impaired, and consequently classify financial instrument in the respective stage: · Stage 1: When loans are first recognized, the Bank recognizes an allowance based on 12 months ECL. Stage 1 loans also include facilities where the credit risk has improved and the loan has been returned to Stage 1. · Stage 2: When a loan has shown a significant increase in credit risk since origination, the Bank records an allowance based on lifetime ECL. Stage loans also include facilities where the credit risk has improved and the loan has been returned to stage 2. · Stage 3: Loans considered credit-impaired. The Bank records an allowance based on lifetime ECL, setting the Probability of Default (“PD”) at 100%. The Banks assessment of a SICR and the calculation of ECL both incorporate forward-looking information. The Bank performs historical analysis and identify the key economic variables that impacts credit risk and ECL for each portfolio. These can include GDP, inflation, interest rates, and unemployment, among others. Where applicable, we incorporate these economic variables and their associated impacts into our models. Credit risk assessment and forward looking information (including macro-economic factors), includes quantitative and qualitative information based on the Bank’s historical experience, some examples are: a. Financial or economic conditions that are expected to cause a significant change in the borrower’s ability to meet its debt obligations b. An actual or expected internal credit rating downgrade for the borrower or decrease in behavioral scoring c. An actual or expected significant change in the operating results of the borrower. d. Significant increases in credit risk on other financial instruments of the same borrower. e. Significant changes in the value of the collateral supporting the obligation or in the quality of third-party guarantees or credit enhancements. f. Reductions in financial support from a parent entity or other affiliate. g. Expected changes in the loan documentation including an expected breach of contract that may lead to covenant waivers or amendments, interest payment holidays, interest rate step-ups, requiring additional collateral or guarantees, or other changes to the contractual framework of the instrument. The Bank has considered that if contractual payments are more than 30 days past due, the credit risk is deemed to have increased significantly since initial credit recognition, but is not an absolute indicator. The bank did not rebut the backstop presumption of IFRS 9 relating to SICR or default. Note 1 – General Information and Summary of Significant Accounting Policies, continued (i) Expected credit loss measurement The ECL are the probability-weighted estimate of credit losses, i.e. the present value of all cash shortfalls. A cash shortfall is the difference between the cash flows that are due to an entity in accordance with the contract and the cash flows that the entity expects to receive. The three main components to measure the ECL are: PD: The Probability of default is an estimate of the likelihood of default over a given time horizon. A default may only happen at a certain time over the assessed period, if the facility has not been previously derecognized and is still in the portfolio. LGD: The loss given default is an estimate of the loss arising in the case where a default occurs at a given time. It is based on the difference between the contractual cash flows due and those that the lender would expect to receive, including from the realization of any collateral. EAD: The Exposure at default is an estimate of the exposure at a future default date, taking into account expected changes in the exposure after the reporting date, including repayments of principal and interest, whether scheduled by contract or otherwise, expected drawdown on committed facilities, and accrued interest from missed payments. For measuring 12‑month and lifetime ECL, cash shortfalls are identified as follows: · 12‑month expected credit losses: the portion of lifetime expected credit losses that represents the expected credit losses that result from default events on the financial instruments that are possible within the 12 months after the reporting date. · Lifetime expected credit losses: the expected credit losses that result from all possible default events over the expected life of the financial instrument. The Bank considered a multi-factor analysis to perform credit risk analysis. The type of portfolio or transactions, and whether individually or collectivelly assessed. The Bank divides its portfolio in commercial loans, mortgage loans, consumer loans and contingent loans. The Bank assesses individually whether objective evidence of impairment exists for loans that are individually significant, then collectively assesses loans that are not individually significant and loans which are significant but for which there is no objective evidence of impairment available under individually assessment. (ii) Contingent loans The Bank enters into various irrevocable loan commitments and contingent liabilities. Even though these obligations may not be recognized on the statements of financial position, they contain credit risk and, therefore, form part of the overall risk of the Bank. When the Bank estimates the ECL for contingent loans, it estimates the expected portion of the loan commitment that will be drawn down over its expected life. (iii) Forward looking information The ECL model includes a broad range of forward looking information as economic inputs, such as: · GDP growth Note 1 – General Information and Summary of Significant Accounting Policies, continued · Unemployment rates · Central Banks interest rates · Real estate prices (iv) Modifications of financial assets When a loan measured at amortized cost has been renegotiated or modified but not derecognized, the Bank recognizes the resulting gains or losses as the difference between the carrying amount of the original loans, and modified contractual cash flows discounted using the EIR before modification. For ECL estimation purposes of financial assets that have been modified, the Bank is required to distinguish between modification that result in derecognition from those that does not result in derecognition. If the modification does not result in derecognition, then the subsequent assessment of whether there is a significant increase in credit risk is made comparing the risk at the reporting date based on the modified contractual term and the risk at initial recognition based on the original, unmodified contractual term. If the modification results in derecognition, then the modified asset is considered to be a new asset. Accordingly, the date of modification is treated as the date of initial recognition for the purposes of the impairment requirements. (v) Collateral The Banks seeks to use collateral to mitigate its credit risks on financial assets, where possible. Types of collateral are cash, securities, letters of credit, real estate and inventories. Collateral, unless repossessed, is not recorded on the Bank’s statements of financial position. However, the fair value of collateral affects the calculation of ECLs. The main collateral associated to mortgage loans are real estate, which are valued based on data provided by specialized third parties. The estimation of ECL reflects the cash flows expected from collateral and other credit enhancement that are part of the contractual terms of the financial instruments. According to the Bank’s policy when an asset (real estate) is repossessed, it is transferred to assets held for sale at its fair value less cost to sell and classified as non-financial assets at the repossession date. (vi) Charge-offs The gross carrying amount of a financial asset is reduced when there is no reasonable expectation of recovery and all collection efforts have been exhausted. A charge-off constitutes a derecognition event of the corresponding loan transaction in its entirety, and therefore, include portions not past-due for installments loans or leasing operation (no partial charge-off). Subsequent recoveries of amounts previously charge-off are credited to the income statements, as recovery of loans previously charged-off, as a deduction from provisions for loan losses.
Income taxes and deferred taxes	v) Income taxes and deferred taxes The Bank has recognized an expense (income) arising from gains or losses for each year, according to the applicable taxation rules for each country or jurisdiction it operates. Note 1 – General Information and Summary of Significant Accounting Policies, continued The Bank records, when appropriate, deferred tax assets and liabilities for the estimated future tax effects attributable to differences between the carrying amount of assets and liabilities and their tax bases. The measurement of deferred tax assets and liabilities is based on the tax rate, in accordance with the applicable tax laws, using the tax rate that applies to the period when the deferred asset and liability will be settled. The future effects of changes in tax legislation or tax rates are recorded in deferred taxes beginning on the date on which the law is enacted or substantially enacted.
Provisions and contingent assets and liabilities	w) Provisions and contingent assets and liabilities When preparing the financial statements of the consolidated entities, the Bank’s directors made a distinction between: Provisions: credit balances covering present obligations at the reporting date arising from past events which could give rise to a loss for the consolidated entities, which is considered to be more likely than not to occur and certain as to its nature but uncertain as to its amount and/or timing. Contingent liabilities: possible obligations that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more future events not wholly within the control of the consolidated entities. They include the present obligations of the consolidated entities when it is not probable that an outflow of resources embodying economic benefits will be required to settle them. The Group does not recognize the contingent liability. The Group will disclose a contingent liability, unless the possibility of an outflow of resources embodying economic benefits is remote. Contingent assets: possible assets that arise from past events and whose existence is conditional on, and will be confirmed only by, the occurrence or non-occurrence of one or more uncertain future events not wholly within the control of the Group. Contingent assets are not recognized in the consolidated balance sheet or in the consolidated income statement, but rather are disclosed in the notes, provided that it is probable that these assets will give rise to an increase in resources embodying economic benefits. The Group’s consolidated financial statements include all the material provisions with respect to which it is considered that it is more likely than not the obligation will have to be settled. In accordance with accounting standards, contingent liabilities must not be recognized in the consolidated financial statements, but must rather be disclosed in the notes. Provisions, which are quantified on the basis of the best information available on the consequences of the event giving rise to them and are reviewed and adjusted at the end of each year, are used to cater for the specific obligations for which they were originally recognized. Provisions are fully or partially reversed when such obligations cease to exist or are reduced. Provisions are classified according to the obligations covered as follows (See Note 21): Provision for pensions and similar obligations: includes the amount of all the provisions made to cover post-employment benefits, including obligations to pre-retirees and similar obligations. Provisions for contingent liabilities and commitments: include the amount of the provisions made to cover contingent liabilities -defined as those transactions in which the Group guarantees the obligations of a third party, arising as a result of financial guarantees granted or contracts of another kind- and contingent commitments -defined as irrevocable commitments that may give rise to the recognition of financial assets. Provisions for taxes and other legal contingencies and other provisions: include the amount of the provisions recognized to cover tax and legal contingencies and litigation and the other provisions recognized by the consolidated entities. Other provisions includes, inter alia, any provisions for restructuring costs and environmental measures.
Employee benefits	x) Employee benefits Short-term benefits Correspond to personnel benefits (other than termination benefits) that are expected to be settled within twelve months after year end over which the employees have rendered their services. These are recognized when the employee has rendered the service and are measured at the undiscounted amount of benefits expected to be paid in exchange for that service: · as a liability (accrued expense), after deducting any obligation already satisfied. If the amount already paid is higher than the gross amount of the benefits, the Bank will recognize this excess as an asset (amount paid in advance), when it represents a reduction of future payments or a recoverable amount in cash. · as an expense when the entity consumes the economic benefit arising from the service provided by an employee in exchange for employee benefits, unless other IFRS requires or allows the recognition of those disbursements as part of the cost of an asset. Personnel vacations The annual cost of personnel vacations and benefits are recognized on an accrual basis. Post-employment benefits Correspond to employee benefits (other than termination benefits and short-term employee benefits) that are expected to be settled after the completion of employment. Post-employment benefits plans are agreements, formal and informal, in which the Bank is committed to provide benefits to one or more employees after termination of their employment. Plans providing these benefits are classified as either defined contribution plans or defined benefit plans, depending on the economic substance of the plan as derived from its principal terms and conditi ons. Defined contribution plans: the obligation is recognised for the amounts to be contributed in the period. Defined benefit plans: a liability is recognized based on the estimated benefit cost that employees have accrued for services rendered, less the present value of the defined benefit obligation and present value of present services. Present service cost and gain or loss upon settlement will be recognized in the income statement for the period. Gains and losses generated from the remeasurement of the liability will be recognized in other comprehensive income. Other long-term benefits Other long-term employee benefits are employee benefits, other than short-term, post-employment and termination benefits, which are not due for payment within 12 months after the end of the period in which the employees render the service. The regulations require the recognition of a liability for the present value of the defined benefit obligation less the fair value of the plan assets, if any. The results generated from its remediation will be recognized in the results of the period. Note 1 – General Information and Summary of Significant Accounting Policies, continued Termination benefits Termination benefits are employee benefits provided in exchange for the termination of an employee’s employment, as a consequence of: · a decision of the entity to terminate the employee’s employment before the normal termination date; or · the decision of an employee to accept an offer with benefits in order to terminate the employment before the normal termination date. An entity recognizes a liability and expense for termination benefits at the earlier of the following dates: · when the entity can no longer withdraw the offer of those benefits; and · when the entity recognizes costs for a restructuring that is within the scope of IAS 37 “ Provisions, Contingent Liabilities and Contingent Assets ” and involves the payment of termination benefits.
Provision for mandatory dividends	y) Provision for mandatory dividends The Bank recorded a provision for mandatory dividends calculated as a portion of income for the year in order to comply with dispositions of the Chilean Corporations Act (Ley de Sociedades Anónimas) which requires to distribute at least 30% of income of the year, consistent with the Bank’s internal policy. As of December 31, 2019 and 2018 the Bank provisioned 30% of its income for the year. This provision is recorded, as a deducting item, under the “Retained earnings – provision for mandatory dividends” line of the Consolidated Statement of Changes in Equity. In the Bank’s bylaws, title VII, it is established that the Bank should distribute annually as a dividend to its shareholders, as a proposal of the Board of Directors and based on the number of shares, at least thirty percent (30%) of the net income of the year. Furthermore, no dividends distribution will take place if there are equity losses (negative reserves) until these losses are recovered or if a dividend distribution will cause a non-compliance of the capital requirements established by the Ley General de Bancos (General Bank Law). For all matters related to dividends distributions, the Bank is subject to the terms incorporated in the Transaction Agreement (dated January 29, 2014 and its subsequent modifications), which was approved by the Ordinary Shareholders Meeting (dated March 11, 2016).
Assets received or awarded in lieu of payment	aa) Assets received or awarded in lieu of payment Assets received or awarded in lieu of payment of loans and accounts receivable from clients are recognized at their fair value (as determined by an independent appraisal). A price is agreed upon by the parties through negotiation or, when the parties do not reach an agreement, at the amount at which the Bank is awarded those assets at a judicial auction. In both cases, an independent appraisal is performed. The excess of the outstanding loan balance over the fair value is charged to net income for the year, under “Provision for loan losses”. Any excess of the fair value over the outstanding loan balance, less costs to sell of the collateral, is returned to the client. These assets are subsequently adjusted to their net realizable value less cost to sale, and the difference between the carrying value of the asset and the estimated fair value less costs to sell is charged to income, under “Other operating expenses”.
Customer loyalty programs	bb) Customer loyalty programs The Bank maintains a loyalty program to provide incentives to its customers, allowing them to purchase goods or services with certain benefits which are granted through credit cards issued by the Bank when they purchase according to the conditions established for each loyalty program. The Bank has an adequate level of provisions in order comply with its current obligations and to properly reflect the associated expense when providing the benefits.
Non- current assets held for sale (in "Other Assets")	cc) Non- current assets held for sale (in “Other Assets”) Non-current assets (or a group holding assets and liabilities for disposal) expected to be recovered mainly through the sale of these items rather than through the continued use, are classified as held for sale. Immediately prior to this classification, assets (or elements of a disposable group) are re-measured in accordance with the Bank’s policies. The assets (or disposal group) are measured at the lower of carrying amount and fair value less cost to sell. Impairment losses in initial classification of non-current assets held for sale and with subsequent gains and losses are recorded in income. Gains are not recorded over previously recorded losses.
Earnings per share	dd) Earnings per share Basic earnings per share are determined by dividing the net income attributable to the equity holders of the Bank for the reported period by the weighted average number of shares outstanding during the reported period. Diluted earnings per share are determined in the same way as basic earnings, but the weighted average number of outstanding shares is adjusted to take into consideration the potential diluting effect of stock options, warrants, and convertible debt. As of December 31, 2019, 2018 and 2017 the Bank did not have any instruments that generated dilution.
Consolidated Statement of Cash Flows	ee) Consolidated Statement of Cash Flows The Bank presents cash flows from operating activities, investing activities, and financing activities in a manner that best represent the nature of its activities. The classification of cash flows into the aforementioned categories provides information that allows users to evaluate the impact of the transactions in the financial position of the Bank, as well as over the ending balance of cash and cash equivalents. This information can be also useful when evaluating the relation between those activities (IAS 7). For the preparation of the cash flow statement, the indirect method was used, starting with the Bank’s consolidated pre-tax income and incorporating non-cash transactions, as well as income and expenses associated with cash flows, which are classified as operating, investment or financing activities. Note 1 – General Information and Summary of Significant Accounting Policies, continued For the preparation of the cash flow statement, the following items are considered: · Cash flows : Inflows and outflows of cash and cash equivalents, such as deposits with the Central Bank of Chile, deposits in domestic banks, and deposits in foreign banks. · Operating activities : Principal revenue-producing activities performed by banks and other activities that cannot be classified as investing or financing activities. This section includes, among others, foreign loans obtained, dividends received, available for sale investments and held to maturity. · Investing activities : Correspond to the acquisition and disposal of long-term assets and other investments not included in cash and cash equivalents. · Financing activities : Activities that result in changes in the size and composition of the equity and liabilities that are not part of operating activities nor investing activities. For cash flows statement purposes, it has been considered as cash and cash equivalents amounts included in “Cash and deposits in banks” plus the net amount of cash items in process of collection, plus trading investment and FVTOCI / available for sale investment instruments highly liquid and minimal value change risk which due date is less than three months since the acquisition date and investments under resale agreements under the same terms. Includes also investments in fixed income mutual funds which are presented under FVTPL / trading investments in the Consolidated Statement of Financial Position. The amounts for cash and cash equivalents and the corresponding reconciliation to the Consolidated Statement of Cash Flows are detailed in Note 5 “Cash and Cash Equivalents”. The provision for loan losses included under the operating activities section differs from the amount presented in the Consolidated Statement of Income, because such amount excludes recoveries of transactions previously charged-off for cash flows purposes.
Consolidated Statement of Changes in Equity	ff) Consolidated Statement of Changes in Equity The Consolidated Statement of Changes in Equity presents all movements affecting net equity, including those originated by accounting changes or errors recognition. This statement shows a conciliation between opening and ending balances for the year for all items that form part of consolidated equity, grouping transactions based on their nature, according to the following: · Adjustments due to accounting changes and errors recognition: Includes changes in equity arising as a consequence of restating amounts previously reported in the Consolidated Financial Statements resulting from accounting changes or error recognition. · Net comprehensive income for the year: Includes, in an aggregated manner, net income for the year and other comprehensive income for the year. · Other changes in equity: Includes retained earnings distributions, equity increases, provision for mandatory dividends, dividends paid, among other increases or decreases in consolidated equity. This information is presented in two statements: The Consolidated Statement of Other Comprehensive Income and the Consolidated Statement of Changes in Equity.
Consolidated Statement of Other Comprehensive Income	gg) Consolidated Statement of Other Comprehensive Income In the Consolidated Statement of Other Comprehensive Income are presented income and expenses generated by the Bank as a consequence of its regular activities during the year, clearly identifying those recorded in profit and loss from those recorded in net equity. Due to this, in this statement the following is shown: · Income for the year. · Net amount of income and expenses recorded in equity as “Valuation accounts”. · Deferred income taxes originated by transactions described above, except for those amounts related to exchange differences from foreign net investments. Total amount of consolidated income and expenses recorded attributable to the equity holders of the Bank, calculated as the sum of the items listed above, is presented separately from non-controlling interest.
New accounting pronouncements introduced by IASB	hh) New accounting pronouncements introduced by IASB 1) Standards and interpretations that have been adopted in these Consolidated Financial Statements 1.1 IFRS 16 “ Leases ” On January 13, 2016, the IASB published a new standard, IFRS 16 "Leases". The new standard will imply that most leases are presented in the tenants’ balance sheet under a single model, eliminating the distinction between operating and financial leases. However, the accounting for the lessors remains largely unchanged and the distinction between operating and financial leases is retained. IFRS 16 replaces IAS 17 "Leases" and related interpretations and is effective for periods beginning on or after January 1, 2019. The impacts of the adoption of this standard are presented in Note 2 Accounting Changes and its corresponding disclosures in Note 15 Assets for right of use and lease contracts liabilities. 1.2 IFRIC 23 “Uncertainty regarding the treatment of Income Taxes” Issued on June 7, 2017, it aims to reduce the diversity in how companies recognize and measure a tax liability or a tax asset when there is uncertainty about the treatment of income tax. The Interpretation deals with how to reflect the uncertainty in the accounting for income taxes, being applicable to the determination of the tax base (tax loss), taxable bases, unused fiscal losses, tax credits not used and tax rates when there is uncertainty about tax treatments under IAS 12. The adoption of this interpretation had no impact on the Consolidated Financial Statements. 1.3 Annual improvements 2015‑2017 cycle Amendment published in December 2017 introduces the following improvements: Note 1 – General Information and Summary of Significant Accounting Policies, continued · IFRS 3 “Business Combinations” / IFRS 11 “Joint agreements” : treats the prior interest in a joint operation, as a business combination in stages. · IAS 12 “Income Tax” : deals with the income tax consequences of payments of financial instruments classified as equity · IAS 23 “Borrowing Costs” : deals with eligible costs for capitalization. The implementarion is mandatory from January 1, 2019 The adoption of these amendtments had no impact on the Consolidated Financial Statements 1.4 Amendment to IAS 19 “Employee Benefits” – Plan Amendment, Curtailment or Settlement In February 2018, the International Accounting Standards Board issued the Amendment, Curtailment or Settlement of the Plan (amendments to IAS 19). The amendments clarify the accounting when a plan amendment, curtailment or settlement occurs.. The adoption of this amendtment had no impact on the Consolidated Financial Statements. 1.5 Prepayment Features with Negative Compensation (amendments to IFRS 9) In October 2017, the IASB issued an amendment to IFRS 9 on “Prepayment Features with Negative Compensation”, this amendment allows more assets to be measured at amortized cost than in the previous version of IFRS 9, in particular some prepaid financial assets with negative compensation. Qualifying assets, which include some loans and debt securities that would otherwise have been measured at fair value through profit or loss (FVTPL). To qualify for the amortized cost, the negative compensation must be “reasonable compensation for the early termination of the contract”. The adoption of this amendtment had no impact on the Consolidated Financial Statements. 1.6| Amendment to IAS 28 “Investments in associates and joint ventures ” On October 12, 2017, the IASB published Long-Term Interests in Associates and Joint Ventures (Amendments to IAS 28). The amendments clarify that IFRS 9, including its impairment requirements, applies to long-term interests. Additionally, when applying IFRS 9 to long-term participations, an entity does not take into account the adjustments to its book values required by IAS 28 (that is, adjustments to the book value of long-term shares that originate from the allocation of Investment losses or impairment assessment in accordance with IAS 28). The amendments apply retrospectively to annual periods beginning on or after January 1, 2019. Early application is allowed. Specific transitional provisions apply depending on whether the application for the first time of the amendments coincides with that of IFRS 9. The adoption of this amendtment had no impact on the Consolidated Financial Statements. Note 1 – General Information and Summary of Significant Accounting Policies, continued 2) Standards and interpretations that have not been adopted in these Consolidated Financial Statements 2.1 Amendment to “Conceptual Framerwork ” In March, 2018, the International Accounting Standards Board (IASB) issued a complete set of concepts for the presentation of financial reports, the revised Conceptual Framework for financial information, replacing the previous version of the Conceptual Framework issued in 2010. The revised Conceptual Framework has an effective date from January 1, 2020. The amendment introduces new definitions and includes guidance on certain considerations. Given the nature of the amendment, it will not have a significant impact on the Consolidated Financial Statements. 2.2 Amendment to IFRS 3 “Business Combination” – Business definition In October 2018, the International Accounting Standards Board (IASB) issued the Definition of a business to enable companies to decide whether the activities and assets they acquire are a business or simply a group of assets. Reducing the definitions of a company by focusing the definition of products on goods and services provided to customers and other income from ordinary activities, instead of providing dividends or other economic benefits directly to investors or reducing costs. Amendment to IFRS 3 or has an effective date from January 1, 2020. The amendment clarifies the definition of business in the context of a business combination. The adoption of this amendment will not have an impact on the Consolidated Financial Statements. 2.3 Amendment to IAS 1 “Presentation of Financial Statements” and IAS 8 “Accounting Policies, Changes in Accounting Estimates and Errors” On October 31, 2018, the IASB issued ‘Definition of Material (Amendments to IAS 1 and IAS 8)’ to clarify the definition of ‘material’ and to align the definition used in the Conceptual Framework and the standards themselves. The changes in Definition of Material all relate to a revised definition of ‘material’ which is quoted below from the final amendments: “information is material if omitting, misstating or obscuring it could reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements, which provide financial information about a specific reporting entity.” The new definition of material is found in IAS 1, Presentation of Financial Statements. The definition of material in IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors has been replaced with a reference to IAS 1. The amendments are effective for annual periods beginning on January 1, 2020 . The nature of the amendment includes standardizing the definition of "material", the adoption of which will not have a significant impact on the Consolidated Financial Statements. Note 1 – General Information and Summary of Significant Accounting Policies, continued 2.5 Amendments to IFRS 9, IAS 39 and IFRS 7 – Interest Rate Benchmark Reform The International Accounting Standards Board (IASB) has published ‘Interest Rate Benchmark Reform (Amendments to IFRS 9, IAS 39 and IFRS 7)’ as a first reaction to the potential effects the IBOR reform could have on financial reporting. The amendments deals with issues affecting financial reporting in the period before the replacement of an existing interest rate benchmark with an alternative interest rate and address the implications for specific hedge accounting requirements in IFRS 9 Financial Instruments and IAS 39 Financial Instruments: Recognition and Measurement, which require forward-looking analysis. There are also amendments to IFRS 7 Financial Instruments: Disclosures regarding additional disclosures around uncertainty arising from the interest rate benchmark reform. The amendments are be effective for annual periods beginning on or after 1 January 2020 and must be applied retrospectively. Early application is permitted. The nature of the amendment includes simplifying requirements relating to interest rate benchmark reform. Management is evaluating the impacts of these amendments on the Consolidated Financial Statements.
IFRS9 [member]
Statement [LineItems]
Classification and measurement of financial instruments	k) Classification and measurement of financial instrument under IFRS 9 I. Classification of financial instrument (i) Classification of financial assets Financial assets are classified into a measurement category based on both the Bank’s business model for managing the financial asset and the contractual cash flow characteristics of the financial asset. Contractual cash flow assessment determine if the cash flows from the financial asset meet the SPPI (solely payment of principal and interest) criterion, i.e. whether the contractual terms of the financial asset give rise, on specific dates, to cash flows that are solely payments of principal and interest. Principal is the fair value of the financial assets at initial recognition, and interest is the consideration for the time value of money, the credit risk associated with the principal outstanding, and also may include liquidity risk, administrative cost and profit margin. For classification process the Bank perform the SPPI test, which assesses the contractual term to identify whether they meet SPPI criterion, the contract is a basic lending arrangement. The Bank applies judgment and considers relevant factors such as currency in which the financial asset is denominated, and period for which the interest rate is set. Business model refers to how the Bank manages its financial assets in order to generate cash flows. The Bank determined its business model on initial application of IFRS 9 at the level that best reflects how it manages groups of financial assets to achieve its business objective. The Bank’s business model represents how financial assets are managed to generate cash flows and does not depend on the Management’s intention regarding an individual instrument, but at a higher level of aggregated portfolio and is based on observable factors such as: risks that affect the performance of business model; how business managers are compensated; how the performance of business model is assessed and reported to Management. In addition, the Banks’s business model is not assessed on an instrument-by-instrument basis, but at a higher level of aggregated portfolio and is based on observable factors such as: performance of the financial assets, the risk that affect the performance, and the expected frequency, value and timing of sales, among others. Note 1 – General Information and Summary of Significant Accounting Policies, continued In accordance with IFRS 9 the business models are: · Held to collect business model (HTC) - financial assets that are held within a business model whose objective is to hold assets in order to collect contractual cash flows are managed to realize cash flows by collecting contractual payments over the life of the instrument, under this business model sales made when there is an increase in the credit risk, or to manage credit concentration risk are not inconsistent with a business model whose objective is to hold financial assets to collect contractual cash flows. · Held to collect and sell (HTC&S) - financial assets under this business model achieve the objective by both collecting contractual cash flows and selling financial assets, then involve a greater frequency and value of sales than HTC business model. · Other business model - financial assets held in this business has the objective of realizing cash flows through the sale of the assets. The Bank makes decisions based on the assets’ fair values and manages the assets to realize those fair values. (ii) Reclassifications Reclassification of financial assets is required if, and only if, the objective of the Bank’s business model for managing those financial assets changes. Financial liabilities cannot be reclassified. There are no reclassificacions in these Consolidated Financial Statements. II. Measurement of financial instruments (i) Initial measurement On initial recognition, financial assets and financial liabilities are measured at the transaction price, i.e. the fair value of the consideration given or received (IFRS 13). In the case of financial instruments not at fair value through profit or loss, transaction costs of financial assets and financial liabilities carried at fair value are expensed in profit or loss. (ii) Subsequent measurement - Financial assets After initial recognition, the Bank shall measures a financial asset at: (a) Amortized cost Financial assets that are held in a business model to collect the contractual cash flows and contain contractual terms that give rise on specific dates to cash flows that are SPPI, are measured at amortized cost. The effective interest method is used in the calculation of the amortized cost of a financial asset or a financial liability and in the allocation and recognition of the interest revenue or interest expense in profit or loss over the relevant period. The effective interest rate (EIR) is the rate that exactly discounts estimated future cash payments or receipts through the expected life of the financial asset or financial liability to the gross carrying amount of a financial asset or to the amortized cost of a financial liability. (b) Fair value through other comprehensive income (FVOCI) Financial assets that are debt instruments held in a business model that is achieved by both collecting contractual cash flows and selling, and that contain contractual terms that give rise on specific dates to cash flows that are SPPI, are Note 1 – General Information and Summary of Significant Accounting Policies, continued measured at FVOCI. They are subsequently remeasured at fair value and changes therein (except for those relating to impairment, interest income and foreign currency exchange gains and losses) are recognized in other comprehensive income, until the assets are sold. Upon disposal, the cumulative gain and losses in OCI are recognized in the income statements. (c) Fair value through profit or loss (FVTPL) Financial assets that do not contain contractual terms that give rise on specified dates to cash flows that are SPPI, or if the financial assets, or if the financial asset is not held in a business model that is either (i) a business model to collect the contractual cash flows or (ii) a business model that is achieved by both collecting contractual cash flows and selling. Financial assets held for trading are recognized at fair value through profit or loss, likewise derivatives contracts for trading purposes. (d) Equity instruments For certain equity instruments, the Bank may make an irrevocable election to present subsequent changes in the fair value of the instrument in other comprehensive income, except for dividend income which is recognized in profit or loss. Gains or losses on derecognition of these equity instruments are not transferred to profit or loss. (iii) Subsequent measurement - Financial liabilities After initial recognition, the Bank shall measure a financial liability at amortized cost, except for derivatives that are measured at fair value through profit or loss. III. Derecognition of financial assets and liabilities Financial assets are derecognized when, and only when: · the contractual rights to the cash flows from the financial asset expire, or · the Bank transfers substantially all the risks and rewards of ownership of the financial asset, and therefore the Bank derecognizes the financial asset and recognize separately any rights and obligations created or retained in the transfer. In some cases, the Bank enters into transactions for which it retains the contractual rights to receive the cash flows of the financial asset, but assumes a contractual obligation to pay the cash flows in an arrangement that meets all the conditions required, i.e. the Bank only transfers collected amounts from original assets, selling or pledging original assets is prohibited, and the Bank has the obligation to remit cash flows collected without material delay. When a financial asset is sold and the Bank simultaneously agrees to repurchase it (or an asset that is substantially the same) at a fixed price on a future date, the Bank continues to recognize the financial assets in their entirety in the statements 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. Financial liabilities are derecognized when, and only when, they are extinguished, cancelled or expired. Note 1 – General Information and Summary of Significant Accounting Policies, continued IV. Contingent loans The Bank issues contingent loans (including letters of credit, foreign letters of credit and performance guarantee) and loan commitments. Contingent loans and undrawn loan commitments are commitments under which, over the duration of the commitment, the Bank is required to provide a loan with pre-specified term to the customer. The nominal contractual loan value, when the loan agreed to be provided is on market terms, is not recorded in the statements of financial position. The related expected credit losses allowances are disclosed in Note 21. V. Offsetting Financial assets and financial liabilities are offset in the balance sheet only when there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis, or realize the asset and settle the liability simultaneously.
IAS 39 [member]
Statement [LineItems]
Classification and measurement of financial instruments	l) Classification and measurement of financial instrument under IAS 39 (for years ended up to December 31, 2017) I. Definitions A “financial instrument” is any contract that gives rise to a financial asset of one entity, and a financial liability or equity instrument of another entity. An “equity instrument” is a legal transaction that evidences a residual interest in the assets of an entity deducting all of its liabilities. A “financial derivative” is a financial instrument whose value changes in response to the changes in an underlying observable market variable (such as an interest rate, a foreign exchange rate, a financial instrument’s price, or a market index, including credit ratings), whose initial investment is very small compared with other financial instruments having a similar response to changes in market factors, and which is generally settled at a future date. “Hybrid financial instruments” are contracts that simultaneously include a non-derivative host contract together with a financial derivative, known as an embedded derivative, which is not separately transferable and has the effect that some of the cash flows of the hybrid contract vary in a way similar to a stand-alone derivative. II. Classification of financial assets for measurements purporses Financial assets were classified into the following specified categories: trading investments at fair value through profit or loss (FVTPL), ‘held to maturity investments’, ‘available for sale investments (AFS)’ and ‘loans and accounts receivable from customers’. The classification depends on the nature and purpose of the financial assets and is determined at the time of initial recognition. All regular purchases or sales of financial asset were recognized and derecognized on a trade basis. Regular way purchases or sales of financial assets required delivery of the asset within the time frame established by regulation or convention in the marketplace. Note 1 – General Information and Summary of Significant Accounting Policies, continued Effective interest method The effective interest method is a method of calculating the amortized cost of a debt instrument and of allocating interest income over the relevant period. The effective interest rate is the rate that exactly discounts estimated future cash receipts (including all fees and points paid or received that form an integral part of the effective interest rate, transaction costs and other premiums or discounts) through the expected life of the debt instrument, or, where appropriate, a shorter period, to the net carrying amount on initial recognition. Income was recognized on an effective interest basis for loans and accounts receivables other than those financial assets classified as at fair value through profit or loss. Trading investment Financial assets were classified as FVTPL when the financial asset is either held for trading or they are designated as at fair value through profit or loss. A financial asset was classified as held for trading if: · it has been acquired principally for the purpose of selling it in the near term; or · on initial recognition it is part of a portfolio of identified financial instruments that the Bank manages together and has a recent actual pattern of short-term profit-taking; or · it is a derivative that is not designated and effective as a hedging instrument. A financial asset other than a financial asset held for trading may be designated as FVTPL upon initial recognition if: · such designation eliminates or significantly reduces a measurement or recognition inconsistency that would otherwise arise; or · the financial asset forms part of a group of financial assets or financial liabilities or both, which is managed and its performance is evaluated on a fair value basis, in accordance with the Bank’s documented risk management or investment strategy, and information about the grouping is provided internally on that basis; or · it forms part of a contract containing one or more embedded derivatives, and IAS 39 permits the entire combined contract to be designated as FVTPL. Financial assets at FVTPL were stated at fair value, with any gains or losses arising on remeasurement recognized in profit or loss. The net gain or loss recognized in profit or loss incorporates any dividend or interest earned on the financial asset and was included in the ‘net income (expense) from financial operations’ line item. Held to maturity investments Held-to-maturity investments were non-derivative financial assets with fixed or determinable payments and fixed maturity dates that the Bank had the positive intent and ability to hold to maturity. Subsequent to initial recognition, held-to-maturity investments were measured at amortized cost using the effective interest method less any impairment. Available for sale investments (AFS investments) AFS investments were non-derivatives that were either designated as AFS or were not classified as (a) loans and accounts receivable from customers, (b) held-to-maturity investments or (c) financial assets at fair value through profit or loss (trading investments). Note 1 – General Information and Summary of Significant Accounting Policies, continued Financial instruments held by the Bank that were traded in an active market were classified as AFS and were stated at fair value at the end of each reporting period. The Bank also had investments in financial instruments that were not traded in an active market but that were also classified as AFS investments and stated at fair value at the end of each reporting period (because the Bank considered that fair value can be reliably measured). Changes in the carrying amount of AFS monetary financial assets relating to changes in foreign currency rates, interest income calculated using the effective interest method and dividends on AFS equity investments were recognized in profit or loss. Other changes in the carrying amount of available for sale investments were recognized in other comprehensive income and accumulated under the heading of “Valuation Adjustment”. When the investment was disposed of or it was determined to be impaired, the cumulative gain or loss previously accumulated in the investments revaluation reserve was reclassified to profit or loss. Dividends on AFS equity instruments were recognized in profit or loss when the Bank’s right to receive the dividends wasestablished. The fair value of AFS monetary financial assets denominated in a foreign currency was determined in that foreign currency and translated as the described in f) above. The foreign exchange gains and losses that were recognized in profit or loss were determined based on the amortized cost of the monetary asset. Loans and accounts receivable from customers Loans and accounts receivable from customers were non-derivative financial assets with fixed or determinable payments that were not quoted in an active market. Loans and accounts receivables from customers (including loans and accounts receivable from customers and interbank loans) were measured at amortized cost using the effective interest method, less any impairment. Interest income was recognized by applying the effective interest rate, except for short-term receivables when the effect of discounting is immaterial. III. Classification of financial assets for presentation purposes For presentation purposes, the financial assets were classified by their nature into the following line items in the Consolidated Financial Statements: · Cash and deposits in banks: this line included cash balances, checking accounts and on-demand deposits with the Central Bank of Chile and other domestic and foreign financial institutions. Amounts invested as overnight deposits are included in this item. · Cash items in process of collection: this item represented domestic transactions in the process of transfer through a central domestic clearinghouse or international transactions which may be delayed in settlement due to timing differences. · Trading investments: this item included financial instruments held for trading and investments in mutual funds which must be adjusted to their fair value in the same way as instruments acquired for trading. · Investments under resale agreements: included balances of financial instruments purchased under resale agreement. · Interbank loans: this item included the balances of transactions with domestic and foreign banks, including the Central Bank of Chile, other than those reflected in certain other financial asset classifications listed above. Note 1 – General Information and Summary of Significant Accounting Policies, continued · Loans and accounts receivables from customers: these loans were non-derivative financial assets for which fixed or determined amounts are charged, that were not listed on an active market and which the Bank does not intend to sell immediately or in the short term. When the Bank was the lessor in a lease, and it substantially transferred the risks and rewards incidental to the leased asset, the transaction was presented in loans and accounts receivable from customers while the leased asset is derecognized in the Bank´s statements of financial position. · Investment instruments: were classified into two categories: held-to-maturity investments, and available-for-sale investments. The held-to-maturity investment classification included only those instruments for which the Bank had the ability and intent to hold to maturity. The remaining investments were treated as available for sale. IV. Classification of financial liabilities for measurement purporses The Bank classified all financial liabilities as subsequently measured at amortized cost, except for: Financial liabilities at FVTPL As of December 31, 2017 the Bank did not maintain financial liabilities at FVTPL. Other financial liabilities Other financial liabilities (including interbank borrowings, issued debt instruments and other payables) were initially recorded at fair value and subsequently measured at amortized cost using the effective interest method. V. Classification of financial liabilities for presentation purposes The financial liabilities were classified by their nature into the following line items in the consolidated statements of financial position: · Deposits and other on- demand liabilities: this included all on-demand obligations except for term savings accounts, which were not considered on-demand instruments in view of their special characteristics. Obligations whose payment may be required during the period were deemed to be on-demand obligations. Operations which became callable the day after the closing date were not treated as on-demand obligations. · Cash items in process of being cleared: this represented domestic transactions in the process of transfer through a central domestic clearing house or international transactions which may be delayed in settlement due to timing differences, etc. · Obligations under repurchase agreements: this included the balances of sales of financial instruments under securities repurchase and loan agreements. The Bank did not record in its own portfolio instruments acquired under repurchase agreements. · Time deposits and other time liabilities: this showed the balances of deposit transactions in which a term at the end of which they became callable has been stipulated. · Interbank borrowings: this included obligations due to other domestic banks, foreign banks, or the Central Bank of Chile, other than those reflected in certain other financial liability classifications listed above. · Issued debt instruments: there are three types of instruments issued by the Bank: Obligations under letters of credit, Subordinated bonds and Senior bonds placed in the local and foreign market. · Other financial liabilities: this item included credit obligations to persons other than domestic banks, foreign banks, or the Central Bank of Chile, for financing purposes or operations in the normal course of business. Note 1 – General Information and Summary of Significant Accounting Policies, continued VI. Offseting of financial instruments Financial asset and liability balances were offset, i.e., reported in the Consolidated Statements of Financial Position at their net amount, only if there was a legally enforceable right to offset the recorded amounts and the Bank intended either to settle them on a net basis or to realize the asset and settle the liability simultaneously. As of December 31, 2017 the Bank did not have balance offsetting of financial instruments. VII. Derecognition of financial assets and liabilities The accounting treatment of transfers of financial assets was determined by the extent and the manner in which the risks and rewards associated with the transferred assets are transferred to third parties: (i) If the Bank transferred substantially all the risks and rewards of ownership to third parties, as in the case of unconditional sales of financial assets, sales under repurchase agreements at fair value at the date of repurchase, sales of financial assets with a purchased call option or written put option deeply out of the money, utilization of assets in which the transferor did not retain subordinated debt nor grants any credit enhancement to the new holders, and other similar cases, the transferred financial asset was derecognized from the Consolidated Statements of Financial Position and any rights or obligations retained or created in the transfer were simultaneously recorded. (ii) If the Bank retained substantially all the risks and rewards of ownership associated with the transferred financial asset, as in the case of sales of financial assets under repurchase agreements at a fixed price or at the sale price plus interest, securities lending agreements under which the borrower undertaked to return the same or similar assets, and other similar cases, the transferred financial asset was not derecognized from the Consolidated Statements of Financial Position and continued to be measured by the same criteria as those used before the transfer. However, the following items were recorded: · An associated financial liability for an amount equal to the consideration received; this liability was subsequently measured at amortized cost. · Both the income from the transferred (but not removed) financial asset as well as any expenses incurred due to the new financial liability. (iii) If the Bank neither transferred nor substantially retained all the risks and rewards of ownership associated with the transferred financial asset—as in the case of sales of financial assets with a purchased call option or written put option that was not deeply in or out of the money, securitization of assets in which the transferor retained a subordinated debt or other type of credit enhancement for a portion of the transferred asset, and other similar cases—the following distinction was made: · If the transferor did not retain control of the transferred financial asset: the asset was derecognized from the Consolidated Statements of Financial Position and any rights or obligations retained or created in the transfer were recognized. · If the transferor retained control of the transferred financial asset: it continued to be recognized in the Consolidated Statements of Financial Position for an amount equal to its exposure to changes in value and a financial liability associated with the transferred financial asset is recorded. The net carrying amount of the transferred asset and the associated liability was the amortized cost of the rights and obligations retained, if the transferred asset was measured at amortized cost, or the fair value of the rights and obligations retained, if the transferred asset was measured at fair value. Accordingly, financial assets were only derecognized from the Consolidated Statements of Financial Position when the rights over the cash flows they generated have terminated or when all the inherent risks and rewards of ownership had Note 1 – General Information and Summary of Significant Accounting Policies, continued been substantially transferred to third parties. Similarly, financial liabilities were only derecognized from the Consolidated Statements of Financial Position when the obligations specified in the contract were discharged or cancelled or the contract matured.

General Information and Summa_3

General Information and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of exercise control	The following table details the entities controlled by Itaú Corpbanca: Ownership percentage Functional As of December 31, 2019 As of December 31, 2018 Market Country currency Direct Indirect Total Direct Indirect Total % % % % % % Itaú Corredores de Bolsa Limitada (1) (10) (12) National Chile $ Itaú Administradora General de Fondos S.A. (1) (9) Chile $ Itaú Corredores de Seguros S.A. (1) (5) (8) Chile $ Itaú Asesorías Financieras S.A. (1) (7) (14) Chile $ CorpLegal S.A. (1) (13) (15) Chile $ — — — Recaudaciones y Cobranzas Limitada (1) (11) Chile $ Itaú Corpbanca New York Branch (1) (6) Foreign USA US$ — — Itaú Corpbanca Colombia S.A. (2) (16) Colombia COP$ — — Itaú Corredor de Seguro Colombia S.A. (2) Colombia COP$ — — Itaú Securities Services Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ Itaú Comisionista de Bolsa Colombia S.A (2) (16) Colombia COP$ Itaú Asset Management Colombia S.A. Sociedad Fiduciaria (2) (16) Colombia COP$ — — Itaú (Panamá) S.A. (3) (16) Panama US$ — — Itaú Casa de Valores S.A (4) (16) Panama US$ — — (1) Companies regulated by the Commission for the Financial Market, hereinafter CMF (formerly Superintendency of Securities and Insurance – SVS). (2) Companies regulated by the Colombian Financial Superintendency (SFC), which has a supervision agreement with the CMF. (3) Company regulated by the Superintendency of Banks of Panama. (4) Company regulated by the Superintendency of the Securities Market of Panama. (5) On April 1, 2018, the merger of Corpbanca Corredores de Seguro S.A. and Itaú Chile Corredora de Seguros Limitada took place. (6) Company regulated by the Office of the Comptroller of the Currency (OCC) and the Federal Reserve (FED). (7) On July 4, 2018, Itaú Asesorías Financieras acquired 2 shares of the company to minority shareholders, therefore Itaú Corpbanca and subsidiaries controls, directly and indirectly, 100% of the company’s shares. (8) On September 10, 2018, Itaú Corpbanca acquired 127,901 shares of the company to minority shareholders, therefore Itaú Corpbanca controls, directly and indirectly, 100% of the company’s shares. (9) On December 10, 2018, Itaú Corpbanca acquired 1 share from a minority investor, thereby controlling (directly and indirectly) 100% of the entity. (10) On August 1, 2018, the corporate name of Itaú Corpbanca Corredores de Bolsa S.A. was changed to Itaú Corredores de Bolsa Limitada. (11) On May 2, 2019, Itaú Corpbanca Recaudaciones y Cobranzas S.A (Instacob) acquired from Itaú Corredores de Bolsa its participation in Itaú Asesorías Financieras. (12) On May 2, 2019, Itaú Corredores de Bolsa acquired from Itaú Asesoría Financieras its participation on Instacob (Itaú Corpbanca Recaudaciones y Cobranzas S.A). (13) On May 2, 2019 Itaú Corredores de Bolsa sold to Itaú Corpbanca the participation in Corplegal, with which Itaú Corpbanca becomes a 100% shareholder of the entity. (14) On May 2, 2019 Itaú Asesoría Financieras modifies its legal statute turning from a public company (S.A.) to a private limited company. (15) On May 20, 2019, the dissolution of Corplegal S.A. took place. (16) On December 3, 2019 Itaú Corpbanca completed the acquisition of Itaú Corpbanca Colombia shares owned by Helm LLC and Kresge Stock Holding Company Inc.
Schedule of Associate entity interests	The following entities are classified as “Associates”, were the Bank has an interest and are accounted for using the equity method, according to IAS 28: As of December 31, Associate Main Operation Operation Place 2019 % Share Nexus S.A Credit and debit card operator Santiago, Chile 12.90 % Transbank S.A Credit card operator Santiago, Chile 8.72 %

Accounting Changes (Tables)

Accounting Changes (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Impacts and Reclassifications due to Initial Application	Below is a breakdown of the impacts and reclassifications due to initial application of the standard as of January 1, 2019: As of As of December 31, Initial January 1, 2018 recognition 2019 MCh$ MCh$ MCh$ Right of use asset under lease agreements — 176,795 176,795 Subtotals assets — 176,795 176,795 Lease contracts liabilities — 176,795 176,795 Subtotals liabilities — 176,795 176,795
Summary of Classification and Measurement of Financial Instrument	a) Classification and measurement of financial instrument IAS 39 as of December 31, 2017 IFRS 9 as of January 1, 2018 Measurement Book Value Measurement Book Value Balance category Portfolio MCh$ category Portfolio MCh$ Trading investments Fair value through profit or loss Financial instruments classified as trading investments 415,061 Financial instruments at fair value through profit or loss Financial instruments at fair value through profit or loss 423,855 Investments instruments Fair value through profit or loss Financial assets available for sale (including those that were valued at cost at December) 2,663,478 Financial instruments at fair value through other comprehensive income Financial instruments at fair value through other comprehensive income 2,658,739 Amortized cost Financial assets classified as held to maturity 202,030 Amortized cost Financial instruments at fair value through profit or loss 201,993 Loans and accounts receivable from customers Amortized cost Loans and accounts receivable from customers, net of allowances for loan losses according to IAS 39. 19,764,078 Amortized cost Loans and accounts receivable from customers, net of allowances for loan losses according to IFRS 9. 19,612,201 Interbank loans Amortized cost Interbank loans, net of allowances for loan losses according to IAS 39. 70,077 Amortized cost Interbank loans, net of allowances for loan losses according to IFRS 9. 70,077
Summary of Reconciliation the Consolidated Balance Sheets under IAS39 to IFRS9	b) The following table shows in detail the reconciliation the consolidated balance sheet under IAS 39 as of 31 December 2017 to IFRS 9 as of 1 January 2018 distinguishing between the impacts due to classification and measurement and due to impairment once adopted IFRS 9: Note 2 - Accounting Changes, continued IAS 39 Carrying IFRS 9 Carrying amount As of amount As of December 31, 2017 Reclassifications Remeasurements January 1, 2018 MCh$ MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 964,030 — — 964,030 Cash items in process of collection 157,017 — — 157,017 Financial instruments at fair value through profit or loss — 421,331 2,524 423,855 (i) Financial instruments at fair value through other comprehensive income — 2,657,208 1,531 2,658,739 (ii) Interbank loans at amortized cost — 70,077 — 70,077 (iii) Loans and accounts receivable from customers at amortized cost — 19,764,078 (151,877) 19,612,201 (iv) Financial instruments at amortized cost — 202,030 (37) 201,993 (v) Investments under resale agreements 28,524 — — 28,524 Financial derivative contracts 1,248,775 — — 1,248,775 Interbank loans, net 70,077 (70,077) — — Trading investments 415,061 (415,061) — Loans and accounts receivable from customers, net 19,764,078 (19,764,078) — — Available for sale investments 2,663,478 (2,663,478) — — Held to maturity investments 202,030 (202,030) — — Intangible assets 1,562,654 — — 1,562,654 Property, plant, and equipment 130,579 — — 130,579 Current taxes 238,452 — — 238,452 Deferred taxes 140,685 — 42,792 183,477 (vi) Other assets 429,025 — — 429,025 Other non-current assets held for sale 18,308 — — 18,308 TOTAL ASSETS 28,032,773 — (105,067) 27,927,706 LIABILITIES — Deposits and other demand liabilities 4,141,667 — — 4,141,667 Cash in process of being cleared 109,496 — — 109,496 Obligations under repurchase agreements 420,920 — — 420,920 Time deposits and other time liabilities 10,065,243 — — 10,065,243 Financial derivative contracts 1,095,154 — — 1,095,154 Interbank borrowings 2,196,130 — — 2,196,130 Debt instruments issued 5,950,038 — — 5,950,038 Other financial liabilities 17,066 — — 17,066 Current taxes 624 — — 624 Deferred taxes 26,354 — (2,550) 23,804 (vii) Provisions 117,889 — 20,801 138,690 (viii) Other liabilities 463,435 — — 463,435 Liabilities directly associated with non-current assets held for sale — — — — TOTAL LIABILITIES 24,604,016 — 18,251 24,622,267 EQUITY Attributable to equity holders of the Bank: Capital 1,862,826 — — 1,862,826 Reserves 1,290,131 — — 1,290,131 Valuation accounts (4,735) — 997 (3,738) (ix) Retained earnings: 63,255 — (123,082) (59,827) Retained earnings from prior years 12,668 — (55,261) (42,593) (x) Net income for the year 67,821 — (67,821) — Less: Provision for mandatory dividends (17,234) — — (17,234) Total equity attributable to equity holders of the Bank 3,211,477 — (122,085) 3,089,392 Non-controlling interest 217,280 — (1,233) 216,047 (xi) TOTAL EQUITY 3,428,757 — (123,318) 3,305,439 TOTAL LIABILITIES AND EQUITY 28,032,773 — (105,067) 27,927,706 (i) Includes reclassifications and remeasurements of instruments previously classified as Trading investments and investments in equity instruments previously classified as Available for sale investments according to IAS 39. (ii) Includes reclassifications and reamesurements of financial assets previously classified as Available for sale instruments according to IAS 39. (iii) Includes reclassifications of financial instruments previously classified as Interbank loans according to IAS 39 and remesurement of the allowances for expected credit losses under the new model according to IFRS 9. Note 2 - Accounting Changes, continued (iv) Includes reclassifications of financial instruments previously classified as Loans and accounts receivable from customers according to IAS 39 and remesurement of the allowances for expected credit losses under the new model according to IFRS 9. (v) Includes reclassifications of financial instruments previously classified as held to maturity investments according to IAS 39 and reamesurement due to allowances for expected credit losses under the new model according to IFRS 9. (vi) Recognition of deferred taxes according to IAS 12 due to IFRS 9 adoption. (vii) Recognition of deferred taxes according to IAS 12 due to IFRS 9 adoption. (viii) Includes the recognition of provision for expected credit losses related to Contingent loans under the new model according to IFRS 9. (ix) Includes remeasurement due to recognition of credit risk related to financial assets classified as FVTOCI. (x) Includes all the effects due to IFRS 9 first application. (xi) Includes the non-controlling portion of the effects arising from IFRS 9 first application.
Composition of Loan Portfolio Classified as Loans and Accounts Receivable at Amortized Cost	The composition of the loan portfolio classified as Loans and accounts receivable at amortized cost as of January 1, 2018 is as follows: Individual Group Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Total loans Balances as of December 31, 2017 12,409,654 3,813,662 728,918 16,952,234 962,263 1,776,783 452,505 3,191,551 20,143,785 Restatement of the prior year — — — — — — — — — Balances as of January 1, 2018 12,409,654 3,813,662 728,918 16,952,234 962,263 1,776,783 452,505 3,191,551 20,143,785

Reporting Segments (Tables)

Reporting Segments (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Group Operates in Two Main Geographic Areas	The information on interest income and interest expenses for the years ended December 31, 2019, 2018 and 2017 of the aforementioned reporting segments is presented below: 2019 2018 2017 Chile Colombia Total Chile Colombia Total Chile Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Interest income 1,245,465 528,175 1,773,640 1,208,481 530,836 1,739,317 1,067,124 579,205 1,646,329 Interest expense (631,279) (241,943) (873,222) (593,796) (257,858) (851,654) (529,584) (333,763) (863,347) Net interest income 614,186 286,232 900,418 614,685 272,978 887,663 537,540 245,442 782,982
Schedule of Assets and Liabilities	c.1) Assets and Liabilities As of December 31, 2019 Note Chile Colombia Total MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 610,901 398,780 1,009,681 Cash items in process of collection 5b) 230,595 710 231,305 Financial instruments at fair value through profit or loss 6 112,224 71,478 183,702 Financial instruments at fair value through other comprehensive income 11 2,751,959 846,931 3,598,890 Loans and accounts receivable at amortized cost and interbank loans 9-10 17,651,839 4,659,254 22,311,093 Investment in associates 12 5,833 3,772 9,605 Financial instruments at amortized cost 11 30,123 85,535 115,658 Investments under resale agreements 7 46,686 29,289 75,975 Financial derivative contracts 8 3,061,530 93,427 3,154,957 Intangible assets (*) 13 1,408,003 166,430 1,574,433 Property, plant, and equipment 14 73,169 21,911 95,080 Right of use assets under lease agreements 15 128,868 38,573 167,441 Current taxes 16 30,773 54,743 85,516 Deferred taxes 16 200,747 7,910 208,657 Other assets 17a) 699,679 71,182 770,861 Other non-current assets held for sale 17b) 10,291 6,911 17,202 TOTAL ASSETS 27,053,220 6,556,836 33,610,056 As of December 31, 2019 Note Chile Colombia Total MCh$ MCh$ MCh$ LIABILITIES Deposits and other demand liabilities 18a) 2,765,496 2,107,952 4,873,448 Cash in process of being cleared 5b) 164,573 — 164,573 Obligations under repurchase agreements 7b) 499,136 60,321 559,457 Time deposits and other time liabilities 18b) 9,700,785 1,919,402 11,620,187 Financial derivative contracts 8 2,839,914 98,120 2,938,034 Interbank borrowings 19 1,883,900 762,856 2,646,756 Debt instruments issued 20 5,687,763 720,593 6,408,356 Other financial liabilities 20 12,966 — 12,966 Lease contracts liabilities 15 137,334 35,590 172,924 Current taxes 16 13 — 13 Deferred taxes 16 — 263 263 Provisions 21 88,579 89,248 177,827 Other liabilities 22a) 653,786 55,128 708,914 Liabilities directly associated with non-current assets held for sale 22b) — — — TOTAL LIABILITIES 24,434,245 5,849,473 30,283,718 (*) This includes goodwill generated in business combination between Itaú Chile and Corpbanca totaling MCh$1,151,019 as of December 31, 2019. Note 4 - Reporting Segments, continued As of December 31, 2018 Note Chile Colombia Total MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 483,416 504,264 987,680 Cash items in process of collection 5b) 318,433 225 318,658 Financial instruments at fair value through profit or loss 6 54,162 42,781 96,943 Financial instruments at fair value through other comprehensive income 8 1,594,955 1,062,199 2,657,154 Loans and accounts receivable at amortized cost and interbank loans 6 16,616,358 4,439,256 21,055,614 Financial instruments at amortized cost 10 122,385 76,538 198,923 Investments under resale agreements 11 91,510 17,957 109,467 Financial derivative contracts 11 1,266,218 102,739 1,368,957 Intangible assets (*) 13 1,432,529 138,435 1,570,964 Property, plant, and equipment 14 78,430 17,134 95,564 Right of use asset under lease agreements 15 — — — Current taxes 16 70,255 52,874 123,129 Deferred taxes 16 151,194 27,492 178,686 Other assets 17a) 378,691 123,106 501,797 Other non-current assets held for sale 17b) 59,802 — 59,802 TOTAL ASSETS 22,718,338 6,605,000 29,323,338 As of December 31, 2018 Note Chile Colombia Total MCh$ MCh$ MCh$ LIABILITIES Deposits and other demand liabilities 18a) 2,463,722 1,836,753 4,300,475 Cash in process of being cleared 5b) 247,165 — 247,165 Obligations under repurchase agreements 7b) 370,623 644,991 1,015,614 Time deposits and other time liabilities 18b) 8,104,729 2,016,382 10,121,111 Financial derivative contracts 8 1,035,394 77,412 1,112,806 Interbank borrowings 19 1,602,125 725,598 2,327,723 Debt instruments issued 20 5,445,000 565,124 6,010,124 Other financial liabilities 20 12,400 — 12,400 Lease contracts liabilities 15 — — — Current taxes 16 528 663 1,191 Deferred taxes 16 — 471 471 Provisions 21 140,663 74,240 214,903 Other liabilities 22a) 471,672 50,123 521,795 Liabilities directly associated with non-current assets held for sale 22b) — — — TOTAL LIABILITIES 19,894,021 5,991,757 25,885,778 (*) This includes goodwill generated in business combination between Itaú Chile and Corpbanca totaling MCh$1,135,392 as of December 31, 2018.
Schedule of Income	2019 2018 2017 Chile Colombia Total Chile Colombia Total Chile Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Net interest income 614,186 286,232 900,418 614,685 272,978 887,663 537,540 245,442 782,982 Net fee and commission income 138,007 36,397 174,404 149,673 36,456 186,129 135,624 41,947 177,571 Net income from financial operations 152,600 (8,966) 143,634 128,264 44,491 172,755 (49,615) 57,883 8,268 Net foreign exchange gain (loss) (24,389) 52,015 27,626 5,726 (23,691) (17,965) 34,661 11,504 46,165 Other operating income 20,460 24,512 44,972 14,337 12,319 26,656 33,398 8,134 41,532 Provision for loan losses (295,116) (87,562) (382,678) (127,804) (151,994) (279,798) (169,233) (146,184) (315,417) NET OPERATING PROFIT 605,748 302,628 908,376 784,881 190,559 975,440 522,375 218,726 741,101 Depreciation and amortization (86,593) (40,573) (127,166) (53,544) (33,273) (86,817) (51,213) (30,632) (81,845) Operating expenses (*) (394,271) (215,096) (609,367) (442,943) (211,767) (654,710) (424,733) (224,569) (649,302) OPERATING INCOME 124,884 46,959 171,843 288,394 (54,481) 233,913 46,429 (36,475) 9,954 Income from investment in associates 800 (268) 532 — — — — — — Income taxes (33,393) (14,460) (47,853) (85,269) 18,210 (67,059) 31,188 21,683 52,871 CONSOLIDATED INCOME FOR THE YEAR 92,291 32,231 124,522 203,125 (36,271) 166,854 77,617 (14,792) 62,825 (*) Includes personnel salaries and expenses, administrative expenses, impairment, and other operating expenses

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Balances included under Cash and Cash Equivalents	a) Detail of cash and cash equivalents The detail of the balances included under cash and cash equivalents is as follows: As of December 31, 2019 2018 MCh$ MCh$ Cash and deposits in banks Cash 253,779 255,449 Deposits in the Central Bank of Chile 103,756 70,444 Deposits in local banks 14,254 4,422 Deposits in foreign banks 637,892 657,365 Subtotals cash and deposits in banks 1,009,681 987,680 Cash items in process of collection, net 66,732 71,493 Highly liquid financial instruments (1) 295,551 194,412 Investments under resale agreements (2) 75,975 109,467 Totals cash and cash equivalents 1,447,939 1,363,052 (1) Highly liquid financial instruments: Corresponds to those financial instruments included in the Financial instruments at fair value through profit or loss Financial trading and available-for-sale portfolios with maturities that do not exceed three months from the acquisition date and the detail is as follows: As of December 31, Notes 2019 2018 MCh$ MCh$ Highly liquid financial instruments Financial instruments at fair value through profit or loss 6 28,772 15,741 Financial instruments at fair value through other comprehensive income 11 266,779 178,671 Totals 295,551 194,412 (2) Investments under resale agreements: corresponds to resale agreements with maturities that do not exceed three months from the acquisition date, which are presented under the item "Investments under resale agreements" in the Consolidated Statement of Financial Position. The detail is as follows: As of December 31, Notes 2019 2018 MCh$ MCh$ Investment under resale agreements 7a) 75,975 109,467
Schedule of Cash in the Process of Collection	Cash in process of collection and in process of being cleared Cash items in process of collection and in process of being cleared represent domestic transactions, which have not been processed through the central domestic clearinghouse, or international transactions that may be delayed in settlement due to timing differences. The detail of these balances is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets Documents held by other banks (documents to be cleared) 76,922 77,085 Funds receivable 154,383 241,573 Subtotals assets 231,305 318,658 Liabilities Funds payable 164,573 247,165 Subtotals liabilities 164,573 247,165 Cash items in process of collection, net 66,732 71,493

Financial Instruments at Fair_2

Financial Instruments at Fair Value through Profit or Loss (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Financial Instruments at Fair Value Through Profit or Loss	The detail of the financial instruments at fair value through profit or loss is as follows: As of December 31, 2019 2018 MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 52,019 21,736 Other Chilean Central Bank and Government securities 28,879 14,872 Other Chilean securities Bonds 905 3 Notes — 4,014 Other securities 22,218 — Foreign financial securities Bonds 67,088 23,276 Other securities 4,390 19,505 Investments in mutual funds Funds managed by related entities 5,870 3,532 Funds managed by third parties 33 — Other investments Other financial instruments at FVTPL 2,300 10,005 Totals 183,702 96,943

Investments under Resale Agre_2

Investments under Resale Agreements and Obligations under Repurchase Agreements (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Instruments Acquired Under Agreements to Resale	a) The Bank purchases financial instruments agreeing to resell them at a future date. As of December 31, 2019 and 2018 the instruments acquired under resale agreements are as follows: As of December 31, 2019 As of December 31, 2018 Between 3 Between 3 Up to 3 months and Over 1 Up to 3 months and Over 1 months 1 year year Totals months 1 year year Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 20,593 — — 20,593 14,533 — — 14,533 Government securities 17,491 — — 17,491 76,977 — — 76,977 Other Chilean Central Bank and Government securities — — — — — — — — Other Chilean securities Bonds 8,603 — — 8,603 — — — — Notes — — — — — — — — Other securities — — — — — — — — Foreign financial securities Central Banks and Government securities 27,546 — — 27,546 17,351 — — 17,351 Other foreign instruments 1,742 — — 1,742 606 — — 606 Totals 75,975 — — 75,975 109,467 — — 109,467
Schedule of Instruments Acquired Under Agreements to Repurchase	a) As of December 31, 2019 and 2018, the instruments acquired under agreements to repurchase are as follows: As of December 31, 2019 As of December 31, 2018 Between 3 Between 3 Up to 3 months and Over 1 Up to 3 months and Over 1 months 1 year year Totals months 1 year year Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank securities 168,778 — — 168,778 21,018 — — 21,018 Government securities 11,970 — — 11,970 283,898 — — 283,898 Other Chilean Central Bank and Government securities — — — — — — — — Other Chilean securities Bonds 318,389 — — 318,389 — — — — Notes — — — — — — — — Other Chilean securities — — — — 65,707 — — 65,707 Foreign financial securities Central Banks and Government securities — — — — — — — — Other foreign instruments 60,320 — — 60,320 644,991 — — 644,991 Totals 559,457 — — 559,457 1,015,614 — — 1,015,614

Financial Derivative Contract_2

Financial Derivative Contracts and Hedge Accounting (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [LineItems]
Schedule of Financial Assets and Liabilities	a) Total derivative contracts portfolio The Bank and subsidiaries use the following derivative financial instruments for hedge accounting and trading purposes, which, in order to capture the credit risk in the valuation, are adjusted to reflect the CVA (Credit Value Adjustment) and DVA (Debit Value Adjustment). The detail of these instruments is presented below: As of December 31, 2019 As of December 31, 2018 Assets Liabilities Assets Liabilities MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 203,868 144,069 86,562 75,615 Derivatives held for trading 2,951,089 2,793,965 1,282,395 1,037,191 Totals 3,154,957 2,938,034 1,368,957 1,112,806
Schedule of Portfolio of Financial Derivative Assets	Financial derivative assets As of December 31, 2019 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 8,174,950 3,931,647 1,234,741 454,300 Currency swaps 217,953 923,526 6,640,937 855,780 Interest rate swaps 4,125,562 7,225,228 31,308,891 1,840,855 Call currency options 34,713 49,753 748 3,805 Put currency options 5,067 15,940 — 217 Totals 12,558,245 12,146,094 39,185,317 3,154,957 As of December 31, 2018 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 3,643,505 703,790 419,833 342,993 Currency swaps 168,254 1,817,002 6,449,984 468,093 Interest rate swaps 3,061,784 8,933,622 34,958,699 553,608 Call currency options 26,435 102,163 17,750 4,217 Put currency options 1,119 33,260 — 46 Totals 6,901,097 11,589,837 41,846,266 1,368,957
Schedule of Portfolio of Financial derivative liabilities	Financial derivative liabilities As of December 31, 2019 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 11,622,926 4,440,565 830,870 504,276 Currency swaps 182,481 831,635 6,249,881 769,072 Interest rate swaps 2,939,069 6,101,205 29,362,545 1,662,363 Call currency options 31,482 51,810 — 1,758 Put currency options 18,837 39,941 374 565 Totals 14,794,795 11,465,156 36,443,670 2,938,034 As of December 31, 2018 Notional Between 3 months Up to 3 months and 1 year Over 1 year Fair value MCh$ MCh$ MCh$ MCh$ Currency forwards 1,406,262 550,427 113,872 322,241 Currency swaps 658,937 1,035,357 3,169,546 298,415 Interest rate swaps 3,111,787 5,826,465 26,522,433 489,718 Call currency options 11,540 35,344 — 1,493 Put currency options 16,367 38,172 11,115 939 Totals 5,204,893 7,485,765 29,816,966 1,112,806
Schedule of Portfolio of Derivative Financial Instruments for Hedge Accounting and Trading Purposes	As of December 31, 2019 and 2018, the portfolio of financial derivative instruments held for hedge accounting and trading purposes is as follows: As of December 31, 2019 Notional Fair value Between 3 months and Up to 3 months 1 year Over 1 year Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 3,679,576 1,371,790 3,072,685 203,868 144,069 Fair value hedge Currency forwards — — — — — Currency swaps — — 47,463 — 1,479 Interest rate swaps — 29,342 1,952,968 152,011 50,247 Subtotals — 29,342 2,000,431 152,011 51,726 Cash flow hedge Currency forwards 1,426,697 849,243 556,633 4,174 17,798 Currency swaps — 47,155 78,592 6,145 2,703 Interest rate swaps 32,408 — 437,029 2,722 5,820 Subtotals 1,459,105 896,398 1,072,254 13,041 26,321 Hedge of net investment in a foreign operation Currency forwards 2,220,471 446,050 — 38,816 66,022 Subtotals 2,220,471 446,050 — 38,816 66,022 Derivatives held for trading 23,673,464 22,239,460 72,556,302 2,951,089 2,793,965 Currency forwards 16,150,708 7,076,919 1,508,978 411,310 420,456 Currency swaps 400,434 1,708,006 12,764,763 849,635 764,890 Interest rate swaps 7,032,223 13,297,091 58,281,439 1,686,122 1,606,296 Call currency options 66,195 101,563 748 3,805 1,758 Put currency options 23,904 55,881 374 217 565 Subtotals 23,673,464 22,239,460 72,556,302 2,951,089 2,793,965 Totals 27,353,040 23,611,250 75,628,987 3,154,957 2,938,034 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Fair value Between 3 months and Up to 3 months 1 year Over 1 year MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedge accounting 3,744,312 1,323,671 2,527,255 86,562 75,615 Fair value hedge Currency forwards 32,639 17,421 102,847 16,461 5,814 Currency swaps 610,980 192,926 — 7,697 11,038 Interest rate swaps 1,231 52,105 2,194,956 15,492 16,995 Subtotals 644,850 262,452 2,297,803 39,650 33,847 Cash flow hedge Currency forwards 2,188,426 — 130,191 4,835 1,283 Currency swaps — 330,033 — 13,363 17,593 Interest rate swaps — 198,573 99,261 1,119 1,892 Subtotals 2,188,426 528,606 229,452 19,317 20,768 Hedge of net investment in a foreign operation Currency forwards 911,036 532,613 — 27,595 21,000 Subtotal 911,036 532,613 — 27,595 21,000 Derivatives held for trading 8,361,678 17,751,931 69,135,977 1,282,395 1,037,191 Currency forwards 1,917,666 704,183 300,667 294,102 294,144 Currency swaps 216,211 2,329,400 9,619,530 447,033 269,784 Interest rate swaps 6,172,340 14,509,409 59,186,915 536,997 470,831 Call currency options 37,975 137,507 17,750 4,217 1,493 Put currency options 17,486 71,432 11,115 46 939 Subtotals 8,361,678 17,751,931 69,135,977 1,282,395 1,037,191 Totals 12,105,990 19,075,602 71,663,232 1,368,957 1,112,806
Schedule of the Effective Portion Generated by Cash Flow Derivatives	As of December 31, 2019 2018 Effective Ineffective Effective Ineffective portion portion portion portion MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) (3,698) (516) 13,963 2,032 Commercial loans (interest rate) 1,135 289 1,270 270 Time deposits and other time liabilities Time deposits (4,275) 91 (158) — Debt instruments issued Current bonds — — (3,829) (2,718) Interbank borrowings Interbank loans (3,019) (8) 43 — Forecast Transaction Payment in USD 3,065 — — — Totals (6,792) (144) 11,289 (416) Note 8 - Financial Derivative Contracts and Hedge Accounting, continued The effective portion generated by cash flow derivatives recorded in the Statement of Changes in Equity as of December 31, 2019 and 2018. The ineffective portion is recognized immediately in the Consolidated Statement of Income. This ineffectivess is generated because both the hedged item and the hedged object do not mirror each other, which means that changes in value attributable to rate and reset components are not fully offset, but remain within the effectiveness range defined by the standard. The income generated by cash flow hedge derivatives whose effect was transferred from Other Comprehensive Income to Income for the year, is as follow: As of December 31, 2019 2018 MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) — — Commercial loans (interest rate) — — Time deposits and other time liabilities Time deposits 200 Debt instruments issued Current bonds — — Interbank borrowings Interbank loans — — Forecast Transaction Payment in USD — — Totals 789 200
Schedule of Gains or Losses on the Hedge of the Net Investment	· The ineffective portion is recognized in profit or loss. No such amounts were recorded in 2019 and 2018. As of December 31, Notes 2019 2018 MCh$ MCh$ Opening balances 21,657 47,454 Gains (losses) on hedge of net investment in foreign operation, before tax 24 b. (46,786) (35,338) Income tax relating to hedges of net investment in foreign operations 24 b. 14,373 9,541 Ending balances (10,756) 21,657
Schedule of Hedge Net Investment	Hedge of net investment As of December 31, 2019 Statements of Changes in Statement Notional Equity of Income Effective Between 1 and Between 3 and portion for the Ineffective Up to 1 year 3 years 6 years Over 6 years year portion MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Net investment in New York Branch 2,360,798 — — — (35,744) — Net investment Itaú Corpbanca Colombia 305,723 — — — (11,042) — Total 2,666,521 — — — (46,786) — Hedging instrument Foreign currency forwards 2,666,521 — — — (46,786) — As of December 31, 2018 Statements of Changes in Statement Notional Equity of Income Effective Between 1 and Between 3 and portion for the Ineffective Up to 1 year 3 years 6 years Over 6 years year portion MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Net investment in New York Branch 1,326,934 — — — (26,179) — Net investment Itaú Corpbanca Colombia 116,715 — — — (10,354) — Total 1,443,649 — — — (36,533) — Hedging instrument Foreign currency forwards 1,443,649 — — — (36,533) —
Fair Value Hedges [Member]
Statement [LineItems]
Schedule of nominal value of hedge items	The following table presents the hedged items and the hedging instrument at fair value as of December 31, 2019 and 2018, detailed by maturity: As of December 31, 2019 Notional Between 1 Between 3 and Up to 1 year and 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Loans and accounts receivable from customers Commercial and mortgage loans 1,032 — — — 1,032 Mortgage loans (1) — 342,159 80,629 263,067 685,855 Financial instruments at FVTPL Treasury bonds — 52,704 49,932 25,458 128,094 Debt instruments issued Current bonds 28,310 98,310 80,620 1,007,834 1,215,074 Totals 29,342 493,173 211,181 1,296,359 2,030,055 Hedging instruments Currency forwards — — — — — Currency swaps — 47,463 — — 47,463 Interest rate swaps 29,342 445,428 211,181 1,296,359 1,982,310 Totals 29,342 492,891 211,181 1,296,359 2,029,773 (1) Colombia: The information includes the effects on the hedge item generated by prepayments, therefore, cash flows from the hedge item and the hedging instrument are not perfectly balanced. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Between 1 Between 3 and Up to 1 year and 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Loans and accounts receivable from customers Commercial and mortgage loans 1,232 156,772 261,860 289,724 709,588 Available for sale investments Treasury bonds 666,388 52,132 35,297 42,189 796,006 Debt instruments issued Current bonds 239,682 55,132 94,000 1,310,697 1,699,511 Totals 907,302 264,036 391,157 1,642,610 3,205,105 Hedging instruments Currency forwards — — — — — Currency swaps 187,578 — — — 187,578 Interest rate swaps 719,724 264,036 391,157 1,642,610 3,017,527 Totals 907,302 264,036 391,157 1,642,610 3,205,105 Below is an estimate of the periods in which flows are expected to be produced: Forecasted cash flows by interest rate risk: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows (1) 9,890 66,797 13,343 4,570 94,600 Outflows (45,795) (36,038) (129,595) (54,460) (265,888) Net Flows (35,905) 30,759 (116,252) (49,890) (171,288) Hedging instruments (*) Outflows (9,890) (66,515) (13,343) (4,570) (94,318) Inflows 45,795 36,038 129,595 54,460 265,888 Net flows 35,905 (30,477) 116,252 49,890 171,570 (1) Colombia: The information includes the effects on the hedge item generated by prepayments, therefore, cash flows from the hedge item and the hedging instrument are not perfectly balanced. Note 8 - Financial Derivative Contracts and Hedge Accounting, continued As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 9,678 17,366 15,632 7,728 50,404 Outflows (24,604) (37,185) (50,215) (70,615) (182,619) Net flows (14,926) (19,819) (34,583) (62,887) (132,215) Hedging instruments (*) Outflows (9,678) (17,366) (15,632) (7,728) (50,404) Inflows 24,604 37,185 50,215 70,615 182,619 Net flows 14,926 19,819 34,583 62,887 132,215 (*) Only includes cash flows forecast portion of the hedge instruments used to cover interest rate risk.
Cash Flow Hedges [Member]
Statement [LineItems]
Schedule of nominal value of hedge items	The following table presents the nominal values of the hedged item as of December 31, 2019 and 2018: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts at amortized cost Loans (inflation-indexed) 1,804,079 566,729 — — 2,370,808 Commercial loans (interest rate) 5,000 43,000 — — 48,000 Time deposits and other time liabilities Time deposits 27,408 — 342,633 41,300 411,341 Debt instruments issued Current bonds — — — — — Interbank borrowings Interbank loans 476,036 — 78,592 — 554,628 Forecast Transaction Payment in USD 42,979 — — — 42,979 Totals 2,355,502 609,729 421,225 41,300 3,427,756 Hedging instruments Currency forwards 2,275,939 556,633 — — 2,832,572 Currency swaps 47,155 — 78,592 — 125,747 Interest rate swaps 32,408 53,096 342,633 41,300 469,437 Totals 2,355,502 609,729 421,225 41,300 3,427,756 As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Loans (inflation-indexed) 2,015,643 9,961 — — 2,025,604 Commercial loans (interest rate) — 28,000 20,000 — 48,000 Time deposits and other time liabilities Time deposits 129,100 52,027 — 46,698 227,825 Debt instruments issued Current bonds 173,683 — — — 173,683 Interbank borrowings Interbank loans 398,606 — 72,766 — 471,372 Totals 2,717,032 89,988 92,766 46,698 2,946,484 Hedging instruments Currency forwards 2,073,971 — — — 2,073,971 Currency swaps 444,488 — 72,766 — 517,254 Interest rate swaps 198,573 89,988 20,000 46,698 355,259 Totals 2,717,032 89,988 92,766 46,698 2,946,484 Note 8 - Financial Derivative Contracts and Hedge Accounting, continued Below is an estimate of the periods in which flows are expected to occur. Forecasted cash flows by interest rate risk: As of December 31, 2019 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 43,430 23,797 — — 67,227 Outflows (484,997) (17,615) (13,260) (941) (516,813) Net Flows (441,567) 6,182 (13,260) (941) (449,586) Hedging instruments (*) Outflows (43,430) (23,797) — — (67,227) Inflows 484,997 17,615 13,260 941 516,813 Net flows 441,567 (6,182) 13,260 941 449,586 As of December 31, 2018 Notional Between 1 and Between 3 and Up to 1 year 3 years 6 years Over 6 years Totals MCh$ MCh$ MCh$ MCh$ MCh$ Hedged items Inflows 1,848,702 169,442 521 — 2,018,665 Outflows (11,046) (3,797) (5,693) (2,837) (23,373) Net Flows 1,837,656 165,645 (5,172) (2,837) 1,995,292 Hedging instruments (*) Outflows (1,848,702) (169,442) (521) — (2,018,665) Inflows 11,046 3,797 5,693 2,837 23,373 Net flows (1,837,656) (165,645) 5,172 2,837 (1,995,292) (*) Only includes cash flows forecast portion of the hedge instruments used to cover interest rate risk.

Interbank Loans (Tables)

Interbank Loans (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Interbank Loans, Net	a) As of December 31, 2019 and 2018, the balances presented under the item "Interbank loans, net" are as follow: As of December 31, 2019 2018 MCh$ MCh$ Local banks Loans to local banks — — Allowances for loans losses — — Subtotals — — Foreign banks Interbank cash loans 37,048 30,507 Loans to foreign banks 755 5,594 Non-transferable deposits with foreign banks 18,832 65,556 Allowances for loans losses (239) (463) Subtotals 56,396 101,194 Chilean Central Bank Deposits with the Chilean Central Bank not available (*) — 240,050 Subtotals — 240,050 Totals 56,396 341,244 (*) These are deposits that do not qualify as time deposits
Schedule of Movements in Provisions and Impairment for Loans with Domestic and Foreign Banks	b) Interbank loans allowances 2019 2018 Stage 1 Stage 2 Stage 2 Stage 1 Stage 2 Stage 2 12-Month ECL Lifetime ECL Lifetime ECL Totals 12-Month ECL Lifetime ECL Lifetime ECL Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 463 — — 463 208 — — 208 Changes in the allowances - Transfer to stage 1 — — — — — — — — - Transfer to stage 2 — — — — — — — — - Transfer to stage 3 — — — — — — — — - Increases due to change in credit risk — — — — — — — — - Decreases due to change in credit risk — — — — — — — — - Charge-offs — — — — — — — — - Changes due to modifications that did not result in derecognition — — — — — — — — New financial assets originated or purchased 316 — — 316 344 — — 344 Financial assets that have been derecognized (574) — — (574) (131) — — (131) Changes in models/risk parameters — — — — — — — — Foreign exchange and other movements 34 — — 34 42 — — 42 Ending balances as of December 31, 239 — — 239 463 — — 463

Loans and Accounts Receivable_2

Loans and Accounts Receivable from Customers (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of financial assets [line items]
Schedule of Composition of Loan Portfolio	As of December 31, 2019, the composition of the loan portfolio is as follows: Allowances for loan losses Individual Group As of December 31, 2019 Gross Assets allowances allowances Totals Net assets MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans: Commercial loans 12,288,810 193,135 224,925 418,060 11,870,750 Foreign trade loans 1,109,169 — 74,488 74,488 1,034,681 Checking account debtors 154,276 — 10,508 10,508 143,768 Factoring transactions 221,104 — 3,694 3,694 217,410 Student loans 654,721 — 19,442 19,442 635,279 Leasing transactions 1,005,209 — 16,302 16,302 988,907 Other commercial loans and receivables 27,255 — 2,705 2,705 24,550 Subtotals 15,460,544 193,135 352,064 545,199 14,915,345 Mortgage loans: Loans with mortgage finance bonds 30,269 — 378 378 29,891 Endorsable mutual mortgage loans 103,850 — 1,408 1,408 102,442 Other mutual mortgage loans 4,384,547 — 63,528 63,528 4,321,019 Mortgage leasing transactions 336,587 — 12,879 12,879 323,708 Other mortgage loans and receivables 20,788 — 308 308 20,480 Subtotals 4,876,041 — 78,501 78,501 4,797,540 Consumer loans: Installment consumer loans 2,005,038 — 193,726 193,726 1,811,312 Checking account debtors 206,738 — 20,106 20,106 186,632 Credit card balances 537,741 — 37,998 37,998 499,743 Consumer leasing transactions 3,113 — 227 227 2,886 Other consumer loans and receivables 45,599 — 4,360 4,360 41,239 Subtotals 2,798,229 — 256,417 256,417 2,541,812 Totals 23,134,814 193,135 686,982 880,117 22,254,697 Note 10 - Loans and Accounts Receivable from Customers, continued As of December 31, 2018, the composition of the loan portfolio is as follows: Allowances for loan losses Individual Group As of December 31, 2018 Gross Assets allowances allowances Totals Net assets MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans: Commercial loans 11,457,388 133,610 258,177 391,787 11,065,601 Foreign trade loans 928,443 — 7,964 7,964 920,479 Checking account debtors 131,100 — 6,801 6,801 124,299 Factoring transactions 210,567 — 9 9 210,558 Student loans 676,689 — 51,091 51,091 625,598 Leasing transactions 928,160 — 25,113 25,113 903,047 Other commercial loans and receivables 34,553 — 1,942 1,942 32,611 Subtotals 14,366,900 133,610 351,097 484,707 13,882,193 Mortgage loans: Loans with mortgage finance bonds 38,364 — 472 472 37,892 Endorsable mutual mortgage loans 118,668 — 8,016 8,016 110,652 Other mutual mortgage loans 3,953,245 — 52,138 52,138 3,901,107 Mortgage leasing transactions 312,118 — 4,395 4,395 307,723 Other mortgage loans and receivables 23,432 — 1,096 1,096 22,336 Subtotals 4,445,827 — 66,117 66,117 4,379,710 Consumer loans: Installment consumer loans 1,921,785 — 155,472 155,472 1,766,313 Checking account debtors 209,492 — 17,579 17,579 191,913 Credit card balances 481,567 — 38,426 38,426 443,141 Consumer leasing transactions 6,203 — 476 476 5,727 Other consumer loans and receivables 50,716 — 5,343 5,343 45,373 Subtotals 2,669,763 — 217,296 217,296 2,452,467 Totals 21,482,490 133,610 634,510 768,120 20,714,370
Schedule of movements of disaggregation of the loan porfolio	The following tables present the movements for the total loan portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2019 and 2018: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Loan portfolio Opening balances as of January 1, 2019 — 367,611 140,943 508,554 17,697,774 2,532,128 744,034 20,973,936 21,482,490 Changes in the allowances — — - Transfer to stage 1 — — — — 392,454 (371,983) (20,471) — — - Transfer to stage 2 — — — — (749,463) 816,577 (67,114) — — - Transfer to stage 3 — (116,202) 116,202 — (113,903) (192,565) 306,468 — — -Charge-off — — (21,841) (21,841) (13,979) (22,862) (114,590) (151,431) (173,272) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 55,367 32,129 87,496 6,487,407 583,765 184,664 7,255,836 7,343,332 Financial assets that have been derecognized — (46,681) (11,754) (58,435) (5,024,522) (771,046) (201,451) (5,997,019) (6,055,454) Net transfer from (to) group assessed 20,807 25,659 — 46,466 (20,807) (25,659) — (46,466) — Foreign exchange and other movements — 35,734 12,532 48,266 36,154 315,844 137,454 489,452 537,718 Ending balances as of December 31, 2019 20,807 321,488 268,211 610,506 18,691,115 2,864,199 968,994 22,524,308 23,134,814 Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Loan portfolio Opening balances as of January 1, 2018 39,213 307,702 22,132 369,047 15,227,713 3,540,274 1,245,571 20,013,558 20,382,605 Changes in the allowances — — - Transfer to stage 1 — — — — 465,545 (453,418) (12,127) — — - Transfer to stage 2 (39,213) 39,213 — — (624,014) 684,868 (60,854) — — - Transfer to stage 3 — — — — (63,263) (138,912) 202,175 — — -Charge-off — — — — (13,837) (26,525) (105,451) (145,813) (145,813) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 69,356 41,626 110,982 5,530,053 501,380 186,025 6,217,458 6,328,440 Financial assets that have been derecognized — (8,129) — (8,129) (4,221,649) (871,600) (212,737) (5,305,986) (5,314,115) Net transfer from (to) group assessed — — — — — — — — — Foreign exchange and other movements — (40,531) 77,185 36,654 1,397,226 (703,939) (498,568) 194,719 231,373 Ending balances as of December 31, 2018 — 367,611 140,943 508,554 17,697,774 2,532,128 744,034 20,973,936 21,482,490
Schedule of Loan Portfolio Before Allowances for Loan Losses by Customer Economic	As of December 31, 2019 and 2018, the loan portfolio before allowances for loan losses by customer economic activity was as follows: As of December 31, 2019 Local loans Foreign loans Totals Distribution percentage MCh$ MCh$ MCh$ % Commercial loans Manufacturing 988,739 111,000 1,099,739 Mining 292,263 259,352 551,615 Electricity, gas and water 685,749 439,792 1,125,541 Agriculture and livestock 309,648 174,295 483,943 Forestry and wood extraction 48,192 5,136 53,328 Fishing 42,397 4,505 46,902 Transport 478,737 80,534 559,271 Communications 25,209 9,717 34,926 Construction 1,757,874 348,955 2,106,829 Commerce 1,439,969 689,210 2,129,179 Services 2,864,307 1,080,264 3,944,571 Others 2,275,275 1,049,425 3,324,700 Subtotals 11,208,359 4,252,185 15,460,544 Mortgage loans 4,211,094 664,947 4,876,041 Consumer loans 1,923,745 874,484 2,798,229 Total 17,343,198 5,791,616 23,134,814 As of December 31, 2018 Local loans Foreign loans Totals Distribution percentage MCh$ MCh$ MCh$ % Commercial loans Manufacturing 982,497 114,714 1,097,211 5.11 % Mining 424,883 252,894 677,777 3.16 % Electricity, gas and water 600,667 356,706 957,373 4.46 % Agriculture and livestock 207,271 139,098 346,369 1.61 % Forestry and wood extraction 24,511 5,172 29,683 0.14 % Fishing 1,945 1,530 3,475 0.02 % Transport 509,354 191,047 700,401 3.26 % Communications 23,886 62,191 86,077 0.40 % Construction 1,436,096 310,530 1,746,626 8.13 % Commerce 861,291 758,817 1,620,108 7.54 % Services 2,735,023 1,137,037 3,872,060 18.02 % Others 2,436,337 793,403 3,229,740 15.03 % Subtotals 10,243,761 4,123,139 14,366,900 66.88 % Mortgage loans 3,852,962 592,865 4,445,827 20.70 % Consumer loans 1,750,986 918,777 2,669,763 12.43 % Total 15,847,709 5,634,781 21,482,490 100 %
Movements in Credit Risk Provisions	Movements in allowances for loan losses during the year ended December 31, 2019 and 2018, under IFRS 9, detailed as follows: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 46,153 87,457 133,610 138,492 232,447 263,571 634,510 768,120 Changes in the allowances -Net transfer to stage 1 — — — — 29,418 (23,245) (6,173) — — -Net transfer to stage 2 — — — — (14,077) 28,023 (13,946) — — -Net transfer to stage 3 — (22,642) 22,642 — (5,171) (29,876) 35,047 — — - Increases due to change in credit risk — 1,216 62,685 63,901 19,691 80,613 105,143 205,447 269,348 - Decreases due to change in credit risk — (7,758) (1,096) (8,854) (51,409) (39,540) (11,452) (102,401) (111,255) - Charge-Offs — — (13,891) (13,891) (983) (7,631) (144,859) (153,473) (167,364) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 12,496 7,376 19,872 73,009 91,324 98,595 262,928 282,800 Financial assets that have been derecognized — (1,824) (3,152) (4,976) (49,158) (62,668) (82,517) (194,343) (199,319) Net transfer from (to) group assessed — 933 — 933 — (933) — (933) — Foreign exchange and other movements — 13,426 (10,886) 2,540 5,603 (8,217) 37,861 35,247 37,787 Ending balances as of December 31, 2019 — 42,000 151,135 193,135 145,415 260,297 281,270 686,982 880,117 Note 10 - Loans and Accounts Receivable from Customers, continued Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 — 49,389 32,736 82,125 126,230 248,129 284,089 658,448 740,573 Changes in the allowances -Net transfer to stage 1 — — — — — 36,325 41,471 77,796 77,796 -Net transfer to stage 2 — — — — (5,233) — 49,097 43,864 43,864 -Net transfer to stage 3 — — — — (4,354) (22,811) — (27,165) (27,165) - Increases due to change in credit risk — 3,732 16,587 20,319 18,307 18,459 28,670 65,436 85,755 - Decreases due to change in credit risk — (532) (1,706) (2,238) (23,460) (27,162) (9,105) (59,727) (61,965) - Charge-Offs — — — — (21,316) (18,559) (95,091) (134,966) (134,966) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 6,428 17,037 23,465 66,074 54,568 77,069 197,711 221,176 Financial assets that have been derecognized — (20,636) (15,355) (35,991) (19,950) (58,405) (78,728) (157,083) (193,074) Net transfer from (to) group assessed — 7,772 38,158 45,930 138 (1,761) (38,158) (39,781) 6,149 Foreign exchange and other movements — — — — 2,056 3,664 4,257 9,977 9,977 Ending balances as of December 31, 2018 — 46,153 87,457 133,610 138,492 232,447 263,571 634,510 768,120 The detail by type of portfolio (commercial, mortgage and consumer) is as follow: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime Commercial ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 46,153 87,457 133,610 61,971 109,805 179,321 351,097 484,707 Changes in the allowances -Net transfer to stage 1 — — — — 9,243 (7,555) (1,688) — — -Net transfer to stage 2 — — — — (6,626) 10,260 (3,634) — — -Net transfer to stage 3 — (22,642) 22,642 — (1,927) (11,340) 13,267 — — - Increases due to change in credit risk — 1,216 62,685 63,901 13,071 32,280 46,212 91,563 155,464 - Decreases due to change in credit risk — (7,758) (1,096) (8,854) (18,572) (19,449) (8,373) (46,394) (55,248) - Charge-Offs — — (13,891) (13,891) (28) (179) (68,119) (68,326) (82,217) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 12,496 7,376 19,872 36,672 35,008 45,007 116,687 136,559 Financial assets that have been derecognized — (1,824) (3,152) (4,976) (23,152) (28,514) (58,013) (109,679) (114,655) Net transfer from (to) group assessed — 933 — 933 — (933) — (933) — Foreign exchange and other movements — 13,426 (10,886) 2,540 2,384 (9,712) 25,377 18,049 20,589 Ending balances as of December 31, 2019 — 42,000 151,135 193,135 73,036 109,671 169,357 352,064 545,199 Note 10 - Loans and Accounts Receivable from Customers, continued Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime Commercial ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 — 49,389 32,736 82,125 63,093 131,854 211,463 406,410 488,535 Changes in the allowances -Net transfer to stage 1 — — — — — 14,148 24,174 38,322 38,322 -Net transfer to stage 2 — — — — (1,047) — 39,461 38,414 38,414 -Net transfer to stage 3 — — — — (3,426) (18,176) — (21,602) (24,602) - Increases due to change in credit risk — 3,732 16,587 20,319 8,594 6,716 12,823 28,133 48,452 - Decreases due to change in credit risk — (532) (1,706) (2,238) (12,651) (10,713) (8,321) (31,685) (33,923) - Charge-Offs — — — — (10,983) (7,447) (57,566) (75,996) (75,996) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 6,428 17,037 23,465 27,419 16,594 42,544 86,557 110,022 Financial assets that have been derecognized — (20,636) (15,355) (35,991) (10,395) (23,782) (50,516) (84,693) (120,684) Net transfer from (to) group assessed — 7,772 38,158 45,930 138 (1,761) (38,158) (39,781) 6,149 Foreign exchange and other movements — — — — 1,229 2,372 3,417 7,018 7,018 Ending balances as of December 31, 2018 — 46,153 87,457 133,610 61,971 109,805 179,321 351,097 484,707 Note 10 - Loans and Accounts Receivable from Customers, continued Group assessed Stage 1 Stage 2 Stage 3 Mortgage 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2019 5,756 37,800 22,561 66,117 66,117 Changes in the allowances - Transfer to stage 1 3,316 (2,901) (415) — — - Transfer to stage 2 (484) 5,430 (4,946) — — - Transfer to stage 3 (244) (7,413) 7,657 — — - Increases due to change in credit risk 530 25,837 5,502 31,869 31,869 - Decreases due to change in credit risk (4,200) (8,916) (2,564) (15,680) (15,680) - Write-Offs — (16) (2,624) (2,640) (2,640) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 1,347 1,622 512 3,481 3,481 Financial assets that have been derecognized (605) (2,553) (2,343) (5,501) (5,501) Changes in models/risk parameters — — — — — Foreign exchange and other movements 264 182 409 855 855 Ending balances as of December 31, 2019 5,680 49,072 23,749 78,501 78,501 Group assessed Stage 1 Stage 2 Stage 3 Mortgage 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2018 3,962 37,460 19,049 60,471 60,471 Changes in the allowances - Transfer to stage 1 — 5,344 2,644 7,988 7,988 - Transfer to stage 2 (206) — 4,253 4,047 4,047 - Transfer to stage 3 (73) (2,918) — (2,991) (2,991) - Increases due to change in credit risk 1,203 5,921 1,619 8,743 8,743 - Decreases due to change in credit risk (394) (7,002) (321) (7,717) (7,717) - Write-Offs — (13) (2,491) (2,504) (2,504) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 1,639 1,577 405 3,621 3,621 Financial assets that have been derecognized (399) (2,792) (271) (5,901) (5,901) Changes in models/risk parameters — — — — — Foreign exchange and other movements 24 223 113 360 360 Ending balances as of December 31, 2018 5,756 37,800 22,561 66,117 66,117 Note 10 - Loans and Accounts Receivable from Customers, continued Group assessed Stage 1 Stage 2 Stage 3 Consumer 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2019 70,765 84,842 61,689 217,296 217,296 Changes in the allowances - Transfer to stage 1 16,859 (12,789) (4,070) — — - Transfer to stage 2 (6,968) 12,334 (5,366) — — - Transfer to stage 3 (3,000) (11,123) 14,123 — — - Increases due to change in credit risk 6,090 34,493 53,429 94,012 94,012 - Decreases due to change in credit risk (28,637) (11,175) (515) (40,327) (40,327) - Write-Offs (955) (7,436) (74,116) (82,507) (82,507) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 34,990 54,694 53,076 142,760 142,760 Financial assets that have been derecognized (25,401) (31,601) (22,161) (79,163) (79,163) Changes in models/risk parameters — — — — — Foreign exchange and other movements 2,949 1,268 129 4,346 4,346 Ending balances as of December 31, 2019 66,692 113,507 76,218 256,417 256,417 Group assessed Stage 1 Stage 2 Stage 3 Consumer 12-Month ECL Lifetime ECL Lifetime ECL Subtotals Totals Opening balances as of January 1, 2018 59,175 78,815 53,577 191,567 191,567 Changes in the allowances - Transfer to stage 1 — 16,833 14,653 31,486 31,486 - Transfer to stage 2 (3,980) — 5,383 1,403 1,403 - Transfer to stage 3 (855) (1,717) — (2,572) (2,572) - Increases due to change in credit risk 8,510 5,822 14,228 28,560 28,560 - Decreases due to change in credit risk (10,415) (9,447) (463) (20,325) (20,325) - Write-Offs (10,333) (11,099) (35,034) (56,466) (56,466) - Changes due to modifications that did not result in derecognition — — — — — New financial assets originated or purchased 37,016 36,397 34,120 107,533 107,533 Financial assets that have been derecognized (9,156) (31,831) (25,502) (66,489) (66,489) Changes in models/risk parameters — — — — Foreign exchange and other movements 803 1,069 727 2,599 2,599 Ending balances as of December 31, 2018 70,765 84,842 61,689 217,296 217,296
Schedule of Detail of Loans and Receivables Sold	As of December 31, 2019 and 2018, the Bank and its subsidiaries derecognized 100% of its sold portfolio, thus complying with the requirements of the accounting policy for derecognizing financial assets and liabilities in Note 1, letter l), point iv) of the annual Consolidated Financial Statements. The main sales during 2019 and 2018 were of loans related to Law 20,027, which are detailed in point d.2). For the year ended December 31, 2019 For the year ended December 31, 2018 Adjustment Net effect on Adjustment Net effect on Portfolio Loan Value Allowances Sale price to EIR income Loan Value Allowances Sale price to EIR income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Currents 14,231 (14,113) 4,130 (207) 3,805 62,261 24,797 24,662 — (12,802) Charged-offs — — 2,199 — 2,199 — — 1,132 — 1,132 Totales 14,231 (14,113) 6,329 (207) 6,004 62,261 24,797 25,794 — (11,670) d.2) CAE portfolio sale For the year ended December 31, 2019, a gain was recognized amounting to MCh$8,584 (MCh$13,272 for the year ended December 31, 2018) corresponding to the income generated in the sale included directly in the Consolidated Statement of Income under “Net income from financial operations”. An adjustment to the effective interest rate for MCh$9,079 as of December 31, 2019 (MCh$11,768 as of December 31, 2018) is allocated to the portion of the CAE portfolio that was classified as loans at amortized cost, recognizing an effective interest rate equivalent for all these operations, according to IFRS 9. Al 31 de diciembre de 2019 Al 31 de diciembre de 2018 Adjustment Net effect on Adjustment Net effect on Portfolio Loan Value Allowances Sale price to EIR income Loan Value Allowances Sale price to EIR income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ CAE 103,201 (849) 120,015 9,079 8,584 95,521 (119) 120,442 11,768 13,272
Schedule of Cash Flows to be Received from Finance Lease Contracts	As of December 31, 2019 and 2018, the Bank’s scheduled cash flows to be received from finance lease contracts have the following maturities: Total receivable Unearned income Net lease receivable As of December 31, As of December 31, As of December 31, 2019 2018 2019 2018 2019 2018 MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Up to one month 13,793 29,177 7 1,310 13,786 27,867 More than 1 month to 3 months 4,033 31,278 54 2,636 3,979 28,642 More than 3 months up to 1 year 39,184 116,526 1,839 10,621 37,345 105,905 More than 1 year up to 3 years 263,280 257,976 23,286 31,491 239,994 226,485 More than 3 years up to 6 years 413,066 28,492 71,543 54,922 341,523 229,998 More than 6 years 1,172,198 1,077,447 463,916 449,864 708,282 627,584 Totals 1,905,554 1,797,324 560,645 550,844 1,344,909 1,246,481 As of December 31, Leasing transactions 2019 2018 MCh$ MCh$ Commercial 1,005,209 928,160 Mortgage 336,587 312,118 Consumer 3,113 6,203 Totals 1,344,909 1,246,481
Commercial loans [member]
Disclosure of financial assets [line items]
Schedule of movements of disaggregation of the loan porfolio	Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Loan portfolio Opening balances as of January 1, 2018 39,213 307,702 22,132 369,047 15,227,713 3,540,274 1,245,571 20,013,558 20,382,605 Changes in the allowances — — - Transfer to stage 1 — — — — 465,545 (453,418) (12,127) — — - Transfer to stage 2 (39,213) 39,213 — — (624,014) 684,868 (60,854) — — - Transfer to stage 3 — — — — (63,263) (138,912) 202,175 — — -Charge-off — — — — (13,837) (26,525) (105,451) (145,813) (145,813) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 69,356 41,626 110,982 5,530,053 501,380 186,025 6,217,458 6,328,440 Financial assets that have been derecognized — (8,129) — (8,129) (4,221,649) (871,600) (212,737) (5,305,986) (5,314,115) Net transfer from (to) group assessed — — — — — — — — — Foreign exchange and other movements — (40,531) 77,185 36,654 1,397,226 (703,939) (498,568) 194,719 231,373 Ending balances as of December 31, 2018 — 367,611 140,943 508,554 17,697,774 2,532,128 744,034 20,973,936 21,482,490 Note 10 - Loans and Accounts Receivable from Customers, continued The following table presents the movements for the Commercial loans portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2019: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2019 — 367,611 140,943 508,554 11,935,270 1,428,951 494,125 13,858,346 14,366,900 Changes in the allowances - Transfer to stage 1 — — — — 158,836 (145,228) (13,608) — — - Transfer to stage 2 — — — — (430,358) 454,203 (23,845) — — - Transfer to stage 3 — (116,202) 116,202 — (85,689) (113,481) 199,170 — — -Charge-off — — (21,841) (21,841) (654) (1,314) (74,877) (76,845) (98,686) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 55,367 32,129 87,496 4,901,848 341,720 115,347 5,358,915 5,446,411 Financial assets that have been derecognized — (46,681) (11,754) (58,435) (4,049,247) (506,777) (149,445) (4,705,469) (4,763,904) Net transfer from (to) group assessed 20,807 25,659 — 46,466 (20,807) (25,659) — (46,466) — Foreign exchange and other movements — 35,733 12,533 48,266 36,212 293,402 131,943 461,557 509,823 Ending balances as of December 31, 2019 20,807 321,487 268,212 610,506 12,445,411 1,725,817 678,810 14,850,038 15,460,544 The following table presents the movements for the Commercial loans portfolio disaggregated by individually and group assesed loans for the year ended December 31, 2018: Individually assessed Group assessed Stage 1 Stage 2 Stage 3 Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime 12-Month Lifetime Lifetime ECL ECL ECL Subtotals ECL ECL ECL Subtotals Totals Opening balances as of January 1, 2018 39,213 307,702 22,132 369,047 10,143,732 2,252,265 951,502 13,347,499 13,716,546 Changes in the allowances - Transfer to stage 1 — — — — 252,306 (245,768) (6,538) — — - Transfer to stage 2 (39,213) 39,213 — — (297,179) 319,361 (22,182) — — - Transfer to stage 3 — — — — (38,989) (70,966) 109,955 — — -Charge-off — — — — (248) (2,739) (68,752) (71,739) (71,739) - Changes due to modifications that did not result in derecognition — — — — — — — — — New financial assets originated or purchased — 69,356 41,626 110,982 4,181,172 271,747 131,865 4,584,784 4,695,766 Financial assets that have been derecognized — (8,129) — (8,129) (3,359,810) (638,568) (172,661) (4,171,039) (4,179,168) Net transfer from (to) group assessed — — — — — — Foreign exchange and other movements — (40,531) 77,185 36,654 1,054,286 (456,381) (429,064) 168,841 205,495 Ending balances as of December 31, 2018 — 367,611 140,943 508,554 11,935,270 1,428,951 494,125 13,858,346 14,366,900
Mortgages loans [member]
Disclosure of financial assets [line items]
Schedule of movements of disaggregation of the loan porfolio	The following table presents the movements of the Mortgage loans portfolio for the year ended December 31, 2019: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2019 3,626,811 659,119 159,897 4,445,827 Changes in the allowances - Transfer to stage 1 112,611 (112,195) (416) — - Transfer to stage 2 (174,723) 210,287 (35,564) — - Transfer to stage 3 (12,815) (64,770) 77,585 — -Charge-off (36) (115) (12,230) (12,381) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 763,342 17,230 2,298 782,870 Financial assets that have been derecognized (330,014) (62,240) (20,063) (412,317) Foreign exchange and other movements 58,589 8,694 4,759 72,042 Ending balances as of December 31, 2019 4,043,765 656,010 176,266 4,876,041 The following table presents the movements of the Mortgage loans portfolio for the year ended December 31, 2018: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2018 3,273,643 702,101 177,009 4,152,753 Changes in the allowances - Transfer to stage 1 104,374 (103,260) (1,114) — - Transfer to stage 2 (189,936) 223,677 (33,741) — - Transfer to stage 3 (12,797) (57,063) 69,860 — -Charge-off — (3) (8,697) (8,700) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 589,959 17,008 2,417 609,384 Financial assets that have been derecognized (302,784) (62,366) (18,533) (383,683) Foreign exchange and other movements 164,352 (60,975) (27,304) 76,073 Ending balances as of December 31, 2018 3,626,811 659,119 159,897 4,445,827
Consumer loans [member]
Disclosure of financial assets [line items]
Schedule of movements of disaggregation of the loan porfolio	The following table presents the movements of the Consumer loans portfolio for the year ended December 31, 2019: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2019 2,135,693 444,058 90,012 2,669,763 Changes in the allowances - Transfer to stage 1 121,007 (114,560) (6,447) — - Transfer to stage 2 (144,382) 152,087 (7,705) — - Transfer to stage 3 (15,399) (14,314) 29,713 — -Charge-off (13,289) (21,433) (27,483) (62,205) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 822,217 224,815 67,019 1,114,051 Financial assets that have been derecognized (645,261) (202,029) (31,943) (879,233) Foreign exchange and other movements (58,647) 13,748 752 (44,147) Ending balances as of December 31, 2019 2,201,939 482,372 113,918 2,798,229 The following table presents the movements of the Consumer loans portfolio for the year ended December 31, 2018: Group assessed Stage 1 Stage 2 Stage 3 12-Month Lifetime Lifetime ECL ECL ECL Totals Opening balances as of January 1, 2018 1,810,338 585,908 117,060 2,513,306 Changes in the allowances - Transfer to stage 1 108,865 (104,390) (4,475) — - Transfer to stage 2 (136,899) 141,830 (4,931) — - Transfer to stage 3 (11,477) (10,883) 22,360 — -Charge-off (13,589) (23,783) (28,002) (65,374) - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 758,922 212,625 51,743 1,023,290 Financial assets that have been derecognized (559,055) (170,666) (21,543) (751,264) Foreign exchange and other movements 178,588 (186,583) (42,200) (50,195) Ending balances as of December 31, 2018 2,135,693 444,058 90,012 2,669,763

Investment instruments (Tables)

Investment instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Detail of Investment Instruments Measured at FVOCI	As of December 31, 2019 and 2018, the detail of financial instruments measured at FVOCI and at amortized cost is as follows: As of December 31, 2019 As of December 31, 2018 At FVOCI At amortized cost Totals At FVOCI At amortized cost Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Debt instruments 3,588,214 115,658 3,703,872 2,644,797 198,923 2,843,720 Equity instruments 10,676 — 10,676 12,357 — 12,357 Totals 3,598,890 115,658 3,714,548 2,657,154 198,923 2,856,077
Detail of Financial Instruments Measured at FVOCI	As of December 31, 2019 and 2018, the detail of financial instruments measured at FVOCI and at amortized cost is as follows: As of December 31, 2019 As of December 31, 2018 At FVOCI At amortized cost Totals At FVOCI At amortized cost Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities quoted in active markets Chilean Central Bank and Government securities Chilean Central Bank instruments 477,900 — 477,900 411,431 — 411,431 Chilean Treasury bonds 1,609,397 — 1,609,397 913,041 — 913,041 Other goverment securities 86,981 — 86,981 27,612 — 27,612 Other local institutions financial instruments — Time deposits in local banks 412,962 — 412,962 185,501 — 185,501 Mortgage finance bonds 41 — 41 50 — 50 Chilean financial institutions bonds 118,583 — 118,583 — — — Other local financial investments — — — — — — Foreign institutions financial instruments — Foreign Governments and Central Banks financial instruments 165,927 — 165,927 769,693 198,923 968,616 Other foreign financial instruments 716,423 115,658 832,081 332,560 — 332,560 Investments not quoted in active markets — Corporate bonds — — — 4,909 — 4,909 Totals 3,588,214 115,658 3,703,872 2,644,797 198,923 2,843,720
Summary of Portfolio of Debt Securities Classified as Investment Instruments at Fair Value through Other Comprehensive Income Includes Impairment	As of December 31, 2019 and 2018 the portfolios of debt securities classified as investment instruments at fair value through other comprehensive income includes impairment movements as summarized below: Financial instruments at FVOCI Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2019 134 — — 134 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-Offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 2,195 — — 2,195 Financial assets that have been derecognized (19) — — (19) Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2019 2,310 — — 2,310 Financial instruments at FVOCI Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2018 520 — — 520 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-Offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 25 — — 25 Financial assets that have been derecognized (411) — — (411) Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2018 134 — — 134
Summary of Portfolio of Investment Instruments at Amortized Cost Includes Impairment	As of December 31, 2019 and 2018 the portfolios of investment instruments at amortized cost includes impairment movements as summarized below: Financial instruments at Amortized cost Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2019 (13) — — (13) Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk — — — — - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 24 — — 24 Financial assets that have been derecognized 13 — — 13 Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2019 24 — — 24 Financial instruments at Amortized cost Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Balances as of January 1, 2018 37 — — 37 Changes in the allowances - Transfer to stage 1 — — — — - Transfer to stage 2 — — — — - Transfer to stage 3 — — — — - Increases due to change in credit risk — — — — - Decreases due to change in credit risk (50) — — (50) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased — — — — Financial assets that have been derecognized — — — — Changes in models/risk parameters — — — — Foreign exchange and other movements — — — — Balances as of December 31, 2018 (13) — — (13)
Schedule of Unrealized Gains and Losses on the FVTOCI Portfolio	Unrealized gains and losses of the FVTOCI portfolio as of December 31, 2019 and 2018 are detailed as follows: As of December 31, 2019 As of December 31, 2018 Acquisition Unrealized Fair Acquisition Unrealized Fair cost Gain Losses value cost Gain Losses value Securities quoted in active markets Chilean Central Bank and Government securities Chilean Central Bank instruments 477,127 2,023 (1,250) 477,900 411,223 533 (325) 411,431 Chilean Treasury bonds 1,593,550 19,865 (4,018) 1,609,397 911,596 2,458 (1,013) 913,041 Other government securities 86,454 626 (99) 86,981 28,131 — (519) 27,612 Other local institutions financial instruments Time deposits in local banks 412,936 85 (59) 412,962 185,468 70 (37) 185,501 Mortgage finance bonds 40 1 — 41 50 — — 50 Chilean financial institutions bonds 117,641 1,008 (66) 118,583 — — — — Foreign institutions financial instruments Foreign Governments and Central Banks financial instruments 160,481 5,520 (74) 165,927 752,791 24,505 (7,603) 769,693 Other foreign financial instruments 697,663 18,965 (205) 716,423 329,196 5,741 (2,377) 332,560 Investments not quoted in active markets Corporate bonds — — — — 4,924 5 (20) 4,909 Equity instruments Unlisted securities 6,965 3,711 — 10,676 8,325 4,032 — 12,357 Totals 3,552,857 51,804 (5,771) 3,598,890 2,631,704 37,344 (11,894) 2,657,154
Schedule of Portfolio of Equity Instruments at Fair Value through Comprehensive Income	As of December 31, 2019 and 2018 the portfolio of equity investment instruments at fair value through comprehensive income are detail as follows: 2019 2018 Unlisted securities MCh$ MCh$ Domestic entities Stock Exchanges 4,990 5,979 Foreign entities A.C.H Colombia 989 799 Redeban Multicolor S.A. 634 539 Cámara de Compensación Divisas de Col. S.A. 270 229 Cámara de Riesgo Central de Contraparte S.A. 160 132 Servibanca - Tecnibanca (*) — 1,818 Bolsa de Valores de Colombia 781 466 Credibanco 2,831 2,378 Others 21 17 Totals 10,676 12,357
Schedule of Amount Recognized in Profit and Loss and Other Comprehensive Income	For the years ended December 31, 2019 and 2018, the following gains and losses were recognized in profit or loss and other comprehensive income: 2019 2018 MCh$ MCh$ Dividends from equity investments held at FVOCI recognized in profit or loss 904 1,241 Related to investments derecognized during the period 35,489 13,765 Related to investments held at the end of the reporting period — — Totals 35,489 13,765

Investment in Associates (Table

Investment in Associates (Tables)	12 Months Ended
	Dec. 31, 2019
Investments in Associates.
Summary of investments in associates	a) As of December 31, 2019, investments in associates are as follows: Investment Entity's share as of December 31, Investment amount Income as of December 31 Entity 2019 2019 2019 % MM$ MM$ Nexus S.A (*) 12.90 % 2,281 (133) Transbank S.A (*) 8.72 % 7,324 665 Totals 9,605 532 (*) This investments were previously classified as “Financial instruments at fair value through profit or loss” and classified as associates since significant influence was gained. Acquisition cost is deemed to be equivalent to the fair value of each investment as of the date in which it became an associate.
Summarized financial information of associates	As of December 31 2019 Assets Liabilities Equity Income MCh$ MCh$ MCh$ MCh$ Nexus S.A 31,147 13,472 4,097 13,578 Transbank S.A 1,217,448 1,134,781 69,265 13,402 Totals 1,248,595 1,148,253 73,362 26,980
Schedule of dividends received from associates	2019 MCh$ Dividends received (**) 268 Totals 268
Schedule of movements in investments in associates	2019 MCh$ Opening balance as of January 1, 2019 — Investment acquisition — Sale of investments — Initial application of equity method (**) 9,073 Participation in income 532 Ending balance as of December 31, 2019 9,605

Intangible assets (Tables)

Intangible assets (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Intangibles Assets	a) Composition of intangibles assets as of December 31, 2019 and 2018 is as follows: Remaining Net assets as Net assets as Useful amortization of January 1, Gross Accumulated of December Concept life years years 2019 balance amortization 31, 2019 MCh$ MCh$ MCh$ MCh$ Computer equipment system or software 6 3 151,840 314,200 (134,457) 179,743 IT projects and licenses 6 2 12,614 33,352 (28,160) 5,192 Assets generated in business combination 1,406,016 1,544,767 (156,465) 1,388,302 Goodwill — — 1,135,392 1,151,019 — 1,151,019 Trademarks 10 8 37,002 51,459 (19,561) 31,898 Customer relationship 12 10 69,259 98,268 (34,951) 63,317 Core deposits 9 7 164,363 244,021 (101,953) 142,068 Other projects 10 1 494 4,055 (2,859) 1,196 Totals 1,570,964 1,896,374 (321,941) 1,574,433 Remaining Net assets as Net assets as Useful amortization of January 1, Gross Accumulated of December Concept life years years 2018 balance amortization 31, 2018 MCh$ MCh$ MCh$ MCh$ Computer equipment system or software 6 3 113,355 263,179 (111,339) 151,840 IT projects and licenses 6 2 16,663 42,601 (29,987) 12,614 Assets generated in business combination 1,431,990 1,518,599 (112,583) 1,406,016 Goodwill — — 1,126,663 1,135,392 — 1,135,392 Trademarks 10 8 42,106 51,432 (14,430) 37,002 Customer relationship 12 10 76,038 93,591 (24,332) 69,259 Core deposits 9 7 187,183 238,184 (73,821) 164,363 Other projects 10 1 646 3,645 (3,151) 494 Totals 1,562,654 1,828,024 (257,060) 1,570,964
Schedule of Movement of Intangible Assets	a) Movements on gross balances of intangible assets as of December 31, 2019 and 2018 are as follows: Computer Assets equipment generated in system or IT projects business software and licenses combination Goodwill Other projects Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2019 263,179 42,601 383,207 1,135,392 3,645 1,828,024 Acquisitions 53,140 80 — — — 53,220 Exchange differences 5,308 20 12,876 15,627 — 33,831 Others (7,427) (9,349) (2,335) — 410 (18,701) Balances as of December 31, 2019 314,200 33,352 393,748 1,151,019 4,055 1,896,374 Note 13 - Intangible assets, continued Computer Assets equipment generated in system or IT projects business software and licenses combination Goodwill Other projects Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 203,080 42,474 375,952 1,126,663 3,645 1,751,814 Acquisitions 58,085 111 — — — 58,196 Disposals (147) — — — — (147) Exchange differences 2,161 16 7,255 8,729 — 18,161 Balances as of December 31, 2018 263,179 42,601 383,207 1,135,392 3,645 1,828,024
Schedule of Movements of Accumulated Amortization of Intangible Assets	a) Movements on accumulated amortization of intangible assets for the years ended December 31, 2019 and 2018 are as follows: Computer Assets equipment generated in system or IT projects business software and licenses combination Other projects Totals MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2019 (111,339) (29,987) (112,583) (3,151) (257,060) Amortization for the year (30,363) (2,809) (40,816) (152) (74,140) Disposals 3 — — — 3 Exchange differences (2,995) (14) (4,648) — (7,657) Others 10,237 4,650 1,582 444 16,913 Balances as of December 31, 2019 (134,457) (28,160) (156,465) (2,859) (321,941) Computer Assets equipment generated in system or IT projects business software and licenses combination Other projects Totals MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 (89,725) (25,811) (70,625) (2,999) (189,160) Amortization for the year (20,868) (4,164) (40,976) (150) (66,158) Exchange differences (746) (12) (982) (2) (1,742) Balances as of December 31, 2018 (111,339) (29,987) (112,583) (3,151) (257,060)

Property, plant and equipment (

Property, plant and equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Property, Plant and Equipment	a) Property, plant and equipment as of December 31, 2019 and 2018 are broken down as follows. Remaining Net assets as Net assets Useful life depreciation of January Gross Accumulated as of December years years 1, 2019 Balance depreciation 31, 2019 MCh$ MCh$ MCh$ MCh$ Land and buildings 19 14 43,065 89,290 (39,068) 50,222 Equipment 3 1 32,607 81,423 (53,872) 27,551 Others 3 2 19,892 47,748 (30,441) 17,307 Furniture 9,373 27,088 (18,209) 8,879 Others 10,519 20,660 (12,232) 8,428 Totals 95,564 218,461 (123,381) 95,080 Remaining Net assets as Net assets Useful life depreciation of January Gross Accumulated as of December years years 1, 2018 Balance depreciation 31, 2018 MCh$ MCh$ MCh$ MCh$ Land and buildings 19 14 83,151 65,843 (22,778) 43,065 Equipment 3 1 25,160 80,383 (47,776) 32,607 Others 3 2 22,268 50,248 (30,356) 19,892 Furniture 10,357 27,440 (18,067) 9,373 Leased assets — 28 (28) — Others 11,911 22,780 (12,261) 10,519 Totals 130,579 196,474 (100,910) 95,564
Schedule of Movement of Property, Plant and Equipment	a) Movements on gross balances as of December 31, 2019, and 2018, are as follows: Land and buildings Equipment Other Totals MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 65,843 80,383 50,248 196,474 Acquisitions 9,449 8,503 2,488 20,440 Sales and/or disposals for the year (3,592) (4,493) (4,014) (12,099) Exchange differences 507 2,514 969 3,990 Reclassification from assets held for sale (*) 9,863 — — 9,863 Others 7,220 (5,484) (1,943) (207) Ending balances as of December 31, 2019 89,290 81,423 47,748 218,461 (*) Corresponds to properties reincorporated to land and buildings that were previously classified as held for the sale of Itaú Corpbanca Colombia S.A. See Note - Other assets and non-current assets held for sale. Note 14 - Property, plant and equipment, continued Land and buildings Equipment Other Totals MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 118,481 65,018 50,773 234,272 Acquisitions 6,207 16,253 2,296 24,756 Sales and/or disposals for the year (14,010) (2,334) (3,187) (19,531) Reclassification to assets held for sale (*) (45,123) (101) (101) (45,325) Exchange differences 288 1,547 467 2,302 Balances as of December 31, 2018 65,843 80,383 50,248 196,474
Schedule of Movements of Accumulated Depreciation of Property, Plant and Equipment	c) Movements of accumulated depreciation of property, plant and equipment for years ended December 31, 2019 and 2018, are as follows: Land and buildings Equipment Other Total MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 (22,778) (47,776) (30,356) (100,910) Depreciation for the year (7,814) (9,026) (4,329) (21,169) Sales and/or disposals for the year 2,884 3,622 2,079 8,585 Exchange differences (79) (2,110) (705) (2,894) Reclasification from asset held for sale (*) (6,829) — — (6,829) Impairment (241) (11) (476) (728) Others (4,211) 1,429 3,346 564 Ending balances as of December 31, 2019 (39,068) (53,872) (30,441) (123,381) (*) Corresponds to properties reincorporated to land and buildings that were previously classified as held for the sale of Itaú Corpbanca Colombia S.A. See Note - Other assets and non-current assets held for sale. Land and buildings Equipment Other Total MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2018 (35,330) (39,858) (28,505) (103,693) Depreciation for the year (7,833) (9,182) (3,644) (20,659) Sales and/or disposals for the year 6,796 2,237 2,429 11,462 Reclassification to assets held for sale (*) 14,472 42 69 14,583 Exchange differences (883) (987) (705) (2,575) Impairment — (28) — (28) Balances as of December 31, 2018 (22,778) (47,776) (30,356) (100,910)
Schedule of Operating Lease Contracts	c) As of December 31, 2019 and 2018, the Bank has contracts of operating lease that cannot be cancel unilaterally. The information for future payments is as follows : Future operating lease payments for land, buildings and equipment Between 1 and Up to 1 year 5 years Over 5 years Totals MCh$ MCh$ MCh$ MCh$ As of December 31, 2019 (*) — — — — As of December 31, 2018 23,140 59,171 54,892 137,203 (*) As of Januany 1, 2019 IFRS 16 “Leases” was adopted, as such information related to leases is disclosed in Note 15 - Assets for right-to-use and obligations for lease contracts.
Schedule of Finance Lease Contracts	e) As of December 31, 2019 and 2018, the Bank holds finance lease contracts that cannot be rescinded or unilaterally terminated. The future payment information is detailed as follows: Future financial leasing payments for land, buildings and equipment Between 1 and Up to 1 year 5 years Over 5 years Totals MCh$ MCh$ MCh$ MCh$ As of December 31, 2019 (*) — — — — As of December 31, 2018 9,373 181,804 45,451 236,628

Assets for Rights-of-Use and _2

Assets for Rights-of-Use and Obligations for Lease Contracts (Tables)	12 Months Ended
	Dec. 31, 2019
Assets for Rights-of-Use and Obligations for Lease Contracts
Schedule of asset for right-to-use property under lease	(i) The Bank has mainly lease agreements for its branches and corporate building. The composition of this item as of December 31, 2019, is as follows Years Years of of average useful remaining Net Assets as of Accumulated Net Assets as of life useful life January 01, 2019 Gross Balances Depreciation December 31, 2019 N° N° MCh$ MCh$ MCh$ MCh$ Buildings and land 5 5 176,795 197,065 (29,800) 167,265 Others leased assets 3 3 — 190 (14) 176 Totals 176,795 197,255 (29,814) 167,441 (ii) Movement in the gross balance of assets for the right to use assets under lease at 31 December 2019 is as follows Buildings and land Others leased assets Totals MCh$ MCh$ MCh$ Balance as January 01, 2019 176,795 — 176,795 Additions of the period 25,624 190 25,814 Disposals due to early termination (16,953) — (16,953) Reclasifications — — — Inflation indexation adjustments (*) 9,488 — 9,488 Exchange rate difference 2,111 — 2,111 Totals 197,065 190 197,255 (*) Corresponds to subsequent adjustments due to liabilities remeasurements due to index changes, according to each lease agreement. (iii) The movement in the accumulated depreciation of assets for the right to use assets under lease as of December 31, 2019, is as follows Buildings and land Other leased assets Totals MCh$ MCh$ MCh$ Opening balance as of January 1, 2019 — — — Depreciation of the period (**) (31,843) (14) (31,857) Disposals due to early termination 2,590 — 2,590 Exchange rate difference (547) — (547) Reclasifications — — — Impairment — — — Ending balances as of December 31, 2019 (29,800) (14) (29,814) (**)
Summary of obligations for lease contracts	i) As of December 31, 2019, the obligations for lease contracts are as follows As of December 31, 2019 MCh$ Lease Obligations 172,924 Totals 172,924
Summary of movement in lease liabilities and cash flows	i) Movement in lease liabilities and cash flows for the period is shown below 2019 MCh$ Opening balance as January 1, 176,795 Additions due to new contracts 25,624 Disposals due to early termination (10,808) Interest expenses 5,034 Inflation indexation adjustments 9,488 Exchange difference 2,868 Capital and interest payments (36,077) Ending balance as December 31, 172,924
Schedule of future maturities of lease liabilities	i) Future maturities of lease liabilities are as follows As of December 31, 2019 MCh$ Within 1 year 10,193 After 1 year but within 2 years 9,802 After 2 years but within 3 years 11,348 After 3 years but within 4 years 13,286 After 4 years but within 5 years 7,221 After 5 years 121,074 Totals 172,924

Current Taxes and Deferred Ta_2

Current Taxes and Deferred Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Effect of Current Taxes Assets and Liabilities By Geographic Area	a.1) Current taxes assets and liabilities by geographical area: As of December 31, 2019 As of December 31, 2018 Chile USA (*) Colombia Totals Chile USA (*) Colombia Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current tax assets 30,773 — 54,743 85,516 68,094 2,161 52,874 123,129 Current tax liabilities (13) — — (13) (528) — (663) (1,191) Totas, net 30,760 — 54,743 85,503 67,566 2,161 52,211 121,938
Schedule of curret tax by geograhical area	a.2) Details of current tax items by geographical area: As of December 31, 2019 As of December 31, 2018 Chile USA (*) Colombia Total Chile USA (*) Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income tax (68,075) — (9,062) (77,137) (81,487) — (14,273) (95,760) Less: Monthly Provisional Payment 61,621 — 27,218 88,839 21,424 — 1,544 22,968 Tax Credit for Training Costs 850 — — 850 800 — — 800 Tax Credit Donations 802 — — 802 745 — — 745 Other taxes to be recovered (**) 35,562 — 36,587 72,149 126,084 2,161 64,940 193,185 Totals 30,760 — 54,743 85,503 67,566 2,161 52,211 121,938 (*) Corresponds to the branch located in New York. (**) The other taxes to be recovered correspond mainly to monthly provisional payments paid in previous years, credits for training expenses, provisional payments for absorbed utilities with right to return, among others.
Schedule of Effect on Income	2019 2018 2017 MCh$ MCh$ MCh$ Income tax expense Current tax expense (77,137) (95,760) (19,689) Deferred taxes Deferred tax expenses 33,727 28,110 74,611 Subtotals (43,410) (67,650) 54,922 Others (4,443) 591 (2,051) Net expense for income taxes (47,853) (67,059) 52,871
Schedule of Effective Tax Rate Reconciliation	The nominal tax rates of the countries where consolidated subsidiaries are located are: 2019 2018 2017 Tax rates Tax rates Tax rates Chile Colombia USA For the years ended December 31, 2019 2018 2017 Tax rate Amount Tax rate Amount Tax rate Amount % MCh$ % MCh$ % MCh$ Amount calculated by using the statutory rates 27.00 (46,541) 27.00 (63,157) 25.50 (2,538) Exchange differences due to investments in Colombia 9.51 (16,399) 13.47 (31,499) (204.84) 20,390 Equity price level restatement for tax purposes (13.94) 24,037 (9.49) 22,188 (141.93) 14,128 Local tax for USA and Panama income 1.76 (3,030) 0.02 (54) (98.46) 9,801 Effect of rate change Chile — — — — (51.68) 5,144 Tax Reform USA 35%-21% — — — — 95.21 (9,477) Effect of rate change Colombia (2.29) 3,954 (0.01) 20 47.07 (4,685) Effect of rates New York subsidiary (**) 0.05 (81) (0.18) 433 14.65 (1,458) Effect of rates Colombia subsidiary (**) 3.42 (5,896) 0.50 (1,173) (54.55) 5,430 Penalty fee SBIF — — 0.69 (1,616) — — Permanent and other differences (*) 2.26 (3,897) (3.33) 7,799 (162.11) 16,136 Totals 27.77 (47,853) 28.67 (67,059) (531.14) 52,871 (*) Other includes, mainly, benefits derived from the tax effect of goodwill from business combinations in Colombia made by Corpbanca prior to the acquisition of Itaú, amounting to MCh$11,276 in 2018, and MCh$20,568 in 2017 (**) This line reflects the differences in tax rates in other jurisdictions, based on the Bank’s consolidated results.
Schedule of "OCI" that may be Reclassified Subsequent to Profit or Loss	The table below sets for a summary of the deferred tax effect on other comprehensive income for the years ended December 31, 2019, 2018 and 2017, which consists of the following items: d.1) Tax effect of “OCI” that may be reclassified subsequently to profit or loss: 2019 2018 2017 MCh$ MCh$ MCh$ Debt instruments at fair value through other comprehensive income (5,926) (2,172) — Available for sale investments — — (3,333) Hedge of a net investment in foreign operations 14,373 10,565 (14,211) Cash flow hedge (162) (1,669) 44 Total charge to other comprehensive income 8,285 6,724 (17,500) Note 16 - Current Taxes and Deferred Taxes, continued d.2) “OCI” that may not be reclassified subsequently to profit or loss: 2019 2018 2017 MCh$ MCh$ MCh$ Income tax relating to defined benefit obligation 1,542 (44) (6) Total charge to other comprehensive income 1,542 (44) (6)
Summary of Effect for Deferred Taxes Presented Assets and Liabilities	Detail of effects for deferred taxes presented in assets and liabilities is as follows: As of December 31, 2019 As of December 31, 2018 Assets (*) Liabilities (*) Net Assets (*) Liabilities (*) Net MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Allowances for loan losses 162,874 — 162,874 124,408 — 124,408 Accrued interest on past due portfolio 8,214 — 8,214 7,377 — 7,377 Unearned price differences 324 — 324 288 — 288 Personnel provisions 20,618 — 20,618 18,220 (155) 18,065 Miscellaneous provisions 41,576 — 41,576 51,033 — 51,033 Tax losses 55,598 — 55,598 62,685 — 62,685 Net tax value of amortizable assets 16,051 — 16,051 14,739 — 14,739 Depreciation of property, plant and equipment (47,423) — (47,423) (42,581) — (42,581) Lease division and others 18,925 — 18,925 19,261 — 19,261 Mark to market of financial instruments (15,846) — (15,846) (26,821) 138 (26,683) Itaú-Corpbanca business combination (57,996) — (57,996) (61,521) — (61,521) Others 4,339 (263) 4,076 11,598 (454) 11,144 IFRS 16 leases effect 1,403 — 1,403 — — — Totals assets (liabilities) for deferred taxes 208,657 (263) 208,394 178,686 (471) 178,215
Schedule of Deferred Taxes by Geographic Area	e.2) Deferred taxes by geographic area: As of December 31, 2019 As of December 31, 2018 Chile USA Colombia Total Chile USA Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Deferred tax assets 182,657 18,527 7,473 208,657 130,883 20,311 27,492 178,686 Deferred tax liabilities — — (263) (263) — — (471) (471) Net by geographic area 182,657 18,527 7,210 208,394 130,883 20,311 27,021 178,215
Schedule of Effects of Deferred Taxes on Assets and Liabilities	Effects of deferred taxes on assets and liabilities arising from temporary differences (by geographic area) are as follows: As of December 31, 2019 As of December 31, 2018 Chile USA Colombia Total Chile USA Colombia Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Allowances for loan losses 155,115 358 7,401 162,874 99,621 (4,531) 29,318 124,408 Accrued interest on past due portfolio 8,214 — — 8,214 7,377 — — 7,377 Unearned price differences 324 — — 324 288 — — 288 Personnel provisions 16,860 (91) 3,849 20,618 13,871 139 4,055 18,065 Miscellaneous provisions 49,335 856 (8,615) 41,576 43,824 3,843 3,366 51,033 Tax losses 1,912 15,750 37,936 55,598 2,460 11,034 49,191 62,685 Net tax value of amortizable assets 16,051 — — 16,051 14,739 — — 14,739 Depreciation of property, plant and equipment (50,746) — 3,323 (47,423) (37,513) — (5,068) (42,581) Lease division and others 11,619 — 7,306 18,925 9,422 — 9,839 19,261 Mark to market of financial instruments (13,484) — (2,362) (15,846) (6,535) — (20,148) (26,683) Itaú-Corpbanca business combination (16,584) — (41,412) (57,996) (16,613) — (44,908) (61,521) Others 3,136 1,654 (714) 4,076 (58) 9,826 1,376 11,144 IFRS 16 leases effect 905 — 498 1,403 — — — — Totals assets (liabilities), net 182,657 18,527 7,210 208,394 130,883 20,311 27,021 178,215

Other Assets and Non-current _2

Other Assets and Non-current Assets Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Other Assets	a) The detail of other assets is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets for leasing (1) 18,724 33,991 Other assets 752,137 467,806 Deposits in guarantee 33,786 30,016 Accounts and notes receivable (2) 48,017 147,248 Rights on brokerage transactions 158,687 52,361 Repossessed assets from leasing transactions 1,787 5,368 Rentals paid in advance (3) — 5,698 Prepaid expenses (4) 21,179 19,674 Collateral for financial transactions (threshold) 407,529 155,641 Claims receivable from insurance companies 1,933 360 Asset management fees receivable 816 1,496 Insurance brokerage fees receivable 5,654 6,537 Other assets 72,749 43,407 Totals 770,861 501,797 (1) Property, plant and equipment acquired to be ceded under financial leases. (2) This includes rights and accounts receivable that fall outside the Bank’s line of business such as tax credits, cash guarantee deposits and other balances pending of collection . (3) Leases paid in advance to SMU S.A. in connection with ATM locations (see Note 34, letter b) (4) Includes payments made in advance for different services that will be received (leases, insurance, and others).
Schedule of Non-Currents Assets	a) The detail of non-currents assets held for sale is as follows: As of December 31, 2019 2018 MCh$ MCh$ Assets received in lieu of payment 10,291 29,060 Property, plant and equipment held for sale (1) 6,911 30,742 Totals 17,202 59,802 Corresponds to buildings owned by Itaú Corpbanca Colombia S.A. held for sale, as approved by the Board of Directors of the entity, during the meeting held on July 31, 2018.

Deposits and Other Demand Lia_2

Deposits and Other Demand Liabilities and Time Deposits (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Deposits and Other Demand Liabilities	a) As of December 31, 2019 and 2018 deposits and other demand liabilities are as follow: As of December 31, 2019 2018 MCh$ MCh$ Checking accounts 2,882,535 2,570,436 Other deposits and demand accounts 1,698,439 1,396,573 Advance payments received from customers 45,902 79,801 Other demand liabilities 246,572 253,665 Totals 4,873,448 4,300,475
Schedule of Time Deposits and Other Time Liabilities	a) As of December 31, 2019 and 2018 the composition of time deposits and other time liabilities is as follows: As of December 31, 2019 2018 MCh$ MCh$ Time deposits 11,599,943 10,093,703 Time savings accounts 20,016 27,156 Other time liabilities 228 252 Totals 11,620,187 10,121,111

Interbank Borrowings (Tables)

Interbank Borrowings (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of InterbankBorrowings	a) As of December 31, 2019 and 2018, interbank borrowings are as follows: As of December 31, 2019 2018 MCh$ MCh$ Loans obtained from local financial institutions Banco BTG Pactual Chile — 5,863 Subtotals — 5,863 Loans obtained from foreign financial institutions Shanghai Commercial & Savings Bank 279,202 2,244 Standard Chartered Bank 229,063 68,169 Citibank N.A. 206,549 118,975 Credicorp Capital SASAF 200,374 175,326 Bank of America, N.A. 160,243 153,546 The Export-Import Bank of Korea 146,549 2,244 IFC Corporación Financiera Internacional 118,065 145,817 Banco Crédito del Perú 104,831 90,022 Bank of Montreal 104,331 106,586 Bank of Nova Scotia 101,989 65,802 BNP Paribas 98,817 91,072 BBVA Asset Management Continental S.A. (Perú) 86,709 73,481 Wells Fargo Bank, N.A. 82,480 209,615 Corporación Andina de Fomento 75,149 104,273 HSBC USA 74,877 43,214 Commerzbank A.G. 71,646 75,032 Other banks 65,252 67,288 Banco Latinoamericano de Exportación 63,991 52,817 Interfondos S.A. Sociedad Administradora de Fondos 55,596 45,149 Bancoldex S.A. (Colombia) 46,390 80,394 Sumitomo Mitsui Banking Corporation 44,826 242,883 Findeter S.A. Financiera del Desarrollo Territorial 44,552 38,364 Scotia Fondos Sociedad Administradora de Fondos S.A. 34,951 108,979 Apple Bank for Saving 34,195 18,147 Cobank C.B. 30,882 33,850 KBC Bank NV 21,896 — Ing Bank NV 14,870 30,874 La Caixa 13,961 — Export Development Canada 12,078 11,199 Banco de Bogotá 8,250 8,560 China Construction Bank 5,556 5,155 Mizuho Corporate Bank 2,411 31,763 Bancaribe Curacao Bank N.V. 2,411 12,694 Bayern Landesbank 2,411 2,237 Banco República 1,403 1,805 Fondos SURA SAF S.A.C. — 2,827 Scotiabank Perú S.A — 1,457 Subtotals 2,646,756 2,321,860 Totals 2,646,756 2,327,723
Schedule of Interbank Borrowings from Financial Institutions by Maturity	a) Interbank borrowings from financial institutions by maturity is as follows: As of December 31, 2019 2018 MCh$ MCh$ Within 1 year 1,997,751 1,829,814 After 1 year but within 2 years 442,784 319,870 After 2 years but within 3 years 83,908 17,595 After 3 years but within 4 years 80,073 77,993 After 4 years but within 5 years 7,521 11,644 After 5 years 34,719 70,807 Totals 2,646,756 2,327,723

Debt Instruments Issued and O_2

Debt Instruments Issued and Other Financial Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Composition	As of December 31, 2019 and 2018, composition of debt instruments issued and other financial liabilities is as follows: As of December 31, 2019 2018 MCh$ MCh$ Debt instruments issued Mortgage finance bonds 40,933 53,463 Senior bonds 5,289,084 4,882,341 Subordinated bonds 1,078,339 1,074,320 Subtotals 6,408,356 6,010,124 Other financial liabilities Liabilities with the public sector 10 10 Borrowings from local financial institutions 12,956 12,390 Foreign borrowings — — Subtotals 12,966 12,400 Totals 6,421,322 6,022,524
Schedule of Debt Classified	Debt classified as short term includes demand obligations or obligations that will mature in less than one year. All other debt is classified as long term, and is detailed as follows: As of December 31, 2019 Long term Short term Totals MCh$ MCh$ MCh$ Mortgage finance bonds 33,046 7,887 40,933 Senior bonds 4,645,463 643,621 5,289,084 Subordinated bonds 1,078,339 — 1,078,339 Debt instruments issued 5,756,848 651,508 6,408,356 Other financial liabilities — 12,966 12,966 As of December 31, 2018 Long term Short term Totals MCh$ MCh$ MCh$ Mortgage finance bonds 43,029 10,434 53,463 Senior bonds 4,220,626 661,715 4,882,341 Subordinated bonds 1,052,111 22,209 1,074,320 Debt instruments issued 5,315,766 694,358 6,010,124 Other financial liabilities — 12,400 12,400
Summary of Maturities for Mortgage Finance Bonds	Detail of maturities for mortgage finance bonds is as follows: As of December 31, 2019 2018 MCh$ MCh$ Within 1 year 7,887 10,434 After 1 year but within 2 years 6,508 7,612 After 2 years but within 3 years 6,072 7,092 After 3 years but within 4 years 5,524 6,516 After 4 years but within 5 years 5,121 5,908 After 5 years 9,821 15,901 Totals 40,933 53,463
Schedule of Senior Bonds, by Currency	Details for senior bonds, by currency, are as follows: As of December 31, 2019 2018 MCh$ MCh$ Bonds in UF 4,273,637 3,568,532 Bonds in CLP 481,083 416,116 Bonds in USD — 529,363 Bonds in COP 534,364 368,330 Totals 5,289,084 4,882,341
Schedule of Maturities for Senior Bonds	Detail of maturities for senior bonds is as follows: As of December 31, 2019 2018 MCh$ MCh$ Due within 1 year 643,621 661,715 After 1 year but within 2 years 323,921 637,595 After 2 years but within 3 years 608,342 216,695 After 3 years but within 4 years 282,882 446,323 After 4 years but within 5 years 478,634 276,047 After 5 years 2,951,684 2,643,966 Totals 5,289,084 4,882,341
Summary of Senior Bonds Issued	The following table presents details for senior bonds issued: Senior bonds issued during the year ended December 31, 2019 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORAM0710 UF 2,000,000 5 years and 5 months 3% annual 02/11/2019 07/01/2024 BCORAM0710 UF 3,000,000 5 years and 5 months 3% annual 02/15/2019 07/01/2024 BITACU0418 UF 2,000,000 9 years and 7 months 2% annual 02/25/2019 10/09/2028 BITACU0418 UF 2,000,000 9 years and 7 months 2% annual 02/26/2019 10/09/2028 BITACV0418 UF 2,000,000 10 years and 7 months 2% annual 03/07/2019 10/09/2029 BITACV0418 UF 2,000,000 10 years and 7 months 2% annual 03/14/2019 10/09/2029 BITACW0418 UF 2,500,000 11 years and 5 months 2% annual 05/07/2019 10/09/2030 BITACS0418 UF 2,000,000 7 years and 3 months 2% annual 07/03/2019 10/09/2026 Totals 17,500,000 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORBX0914 CLP 40,000,000 2 years and 2 months 5% annual 07/04/2019 09/01/2021 BCORBX0914 CLP 1,000,000 2 years and 2 months 5% annual 07/05/2019 09/01/2021 BCORBX0914 CLP 14,500,000 2 years and 2 months 5% annual 07/10/2019 09/01/2021 BCORBX0914 CLP 1,500,000 2 years and 2 months 5% annual 07/15/2019 09/01/2021 Totals 57,000,000 Serie Currency Amount Term Issuance rate Placement date Maturity date SUBSERIE A36 COP 163,035,000,000 3 years 6,13% annual 05/21/2019 05/21/2022 SUBSERIE C60 COP 186,965,000,000 5 years 2,86% annual 05/21/2019 05/21/2024 SERIE A SUBSERIE A60 – 60 COP 170,820,000,000 5 years 6,05% annual 10/16/2019 10/16/2024 SERIE C SUBSERIE C84 – 84 COP 50,000,000,000 7 years 2,28% annual 10/16/2019 10/16/2026 SERIE C SUBSERIE C120 COP 129,180,000,000 10 years 2,76% annual 10/16/2019 10/16/2029 Totals 700,000,000,000 Senior bonds issued during the year ended December 31, 2018 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORAQ0710 UF 2,000,000 10 years and 4 months 3% annual 02/06/2018 07/01/2028 BCORAR0710 UF 2,450,000 11 years and 4 months 3% annual 02/21/2018 07/01/2029 BCORAR0710 UF 5,000,000 11 years and 4 months 3% annual 03/14/2018 07/01/2029 BCORAN0710 UF 2,000,000 7 years and 5 months 3% annual 06/05/2018 07/01/2025 Totals 11,450,000 Serie Currency Amount Term Issuance rate Placement date Maturity date BCORBY0914 CLP 70,000,000,000 4 years and 5 months 5% annual 04/13/2018 09/01/2022 Totals 70,000,000,000 Serie Currency Amount Term Issuance rate Placement date Maturity date SUBSERIE B30 COP 55,470,000,000 3 years and 6 months 1.20% annual 11/22/2018 05/10/2021 SUBSERIE C48 COP 258,706,000,000 4 years 2.91% annual 11/22/2018 11/01/2022 Totals 314,176,000,000
Schedule of Subordinated Bonds, by Currency	Details of subordinated bonds, by currency, are as follows As of December 31, 2019 2018 MCh$ MCh$ Bonds in UF 95,545 95,599 Bonds in CLP 796,564 781,925 Bonds in COP 186,230 196,796 Totals 1,078,339 1,074,320
Summary of Maturities for Subordinated Bonds	Detail of maturities for subordinated bonds is as follows As of December 31, 2019 2018 MCh$ MCh$ Within 1 year — 22,209 After 1 year but within 2 years — — After 2 years but within 3 years 14,526 — After 3 years but within 4 years 23,923 18,604 After 4 years but within 5 years 128,717 22,484 After 5 years 911,173 1,011,023 Totals 1,078,339 1,074,320
Summary of Others Financial Obligations	Others financial obligations As of December 31, 2019 2018 MCh$ MCh$ Within 1 year — — After 1 year but within 2 years — — After 2 years but within 3 years — — After 3 years but within 4 years — — After 4 years but within 5 years — — After 5 years — — Totals financial liabilities — — Short-term financial liabilities Amounts due to credit card transactions 12,956 12,390 Others 10 10 Totals short-term financial liabilities 12,966 12,400 Totals other financial liabilities 12,966 12,400

Provisions (Tables)

Provisions (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of defined benefit plans [line items]
Schedule of Provisions	Provisions disclosed in liabilities as of December 31, 2019 and 2018 present the following detail: As of December 31, 2019 2018 MCh$ MCh$ Provisions for personnel salaries and expenses 102,877 99,945 Provisions for mandatory dividends 38,120 51,614 Provisions for contingent loans risk 34,271 45,848 Provisions for contingencies 2,559 17,496 Totals 177,827 214,903
Movements in Contingent Loans Provisions For Contingent Loan Risk According to IFRS9	a) Movements in provisions for contingent loans risk, for the year ended December 31, 2019 are as follows: Contingent loans risk Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Opening balances as of January 1, 2019 15,879 28,112 1,857 45,848 Changes in the allowances - Transfers to stage 1 1,123 (1,036) (87) — - Transfers to stage 2 (521) 570 (49) — - Transfers to stage 3 (90) (161) 251 — - Increases due to change in credit risk 1,932 1,618 4,605 8,155 - Decreases due to change in credit risk (5,695) (802) (157) (6,654) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 5,490 1,193 780 7,463 Financial assets that have been derecognized (4,927) (15,322) (990) (21,239) Changes in models/risk parameters — — — — Foreign exchange and other movements 698 — — 698 Ending balances as of December 31, 2019 13,889 14,172 6,210 34,271 Note 21 – Provisions, continued Movements in provisions for contingent loans risk, for the year ended December 31, 2018 are as follows: Contingent loans risk Stage 1 Stage 2 Stage 3 12-Month ECL Lifetime ECL Lifetime ECL Totals Ending balances as of December 31, 2017 — — — — Restatement of the prior year due to IFRS 9 adoption 13,485 44,107 2,099 59,691 Opening Opening balances as of January 1, 2018 13,485 44,107 2,099 59,691 Changes in the allowances - Transfers to stage 1 — (504) 116 (388) - Transfers to stage 2 (155) — 268 113 - Transfers to stage 3 (42) (66) — (108) - Increases due to change in credit risk 2,283 5,528 38 7,849 - Decreases due to change in credit risk (1,298) (446) (39) (1,783) - Charge-offs — — — — - Changes due to modifications that did not result in derecognition — — — — New financial assets originated or purchased 5,104 965 126 6,195 Financial assets that have been derecognized (3,763) (21,558) (754) (26,075) Changes in models/risk parameters — — — — Foreign exchange and other movements 265 86 3 354 Ending balances as of December 31, 2018 15,879 28,112 1,857 45,848
Schedule of Provision Balance Changes	a) The provision balance changes during 2019 and 2018, are as follows: Provisions for personnel Provisions for Provisions for Provisions for salaries and expenses mandatory dividends contingent loans risk contingencies (i) (ii) (iii) Totals MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 2019 99,945 51,614 45,848 17,496 214,903 Provisions applied (71,020) (51,614) (23,804) 5,601 (140,837) Provisions established 82,456 38,120 18,483 5,408 144,467 Provisions released (17,514) — (6,954) (26,367) (50,835) Other movements 9,010 — 698 421 10,129 Ending balances as of December 31, 2019 102,877 38,120 34,271 2,559 177,827 Provisions for personnel Provisions for Provisions for Provisions for salaries and expenses mandatory dividends contingent loans risk contingencies (i) (ii) (iii) Totals MCh$ MCh$ MCh$ MCh$ MCh$ Opening Opening balances as of January 1, 2018 90,559 17,234 — 10,096 117,889 Provisions established due to IFRS 9 adoption — — 59,691 — 59,691 Provisions applied (27,026) (17,234) — — (44,260) Provisions recorded 53,156 51,614 14,511 8,993 128,274 Provisions released (25,561) — (28,354) (1,347) (55,262) Other movements 8,817 — — (246) 8,571 Ending balances as of December 31, 2018 99,945 51,614 45,848 17,496 214,903 (i) Employee benefits and staff salaries are recorded in “Personnel salaries expenses.” Mandatory dividends are recorded in the Equity Statement, against “Accrual for mandatory dividends.”
Schedule of Provisions for Payroll and Employee Benefits	a) Provisions for payroll and employee benefits As of December 31, 2019 2018 MCh$ MCh$ Provision for long-term termination benefits (e.1) 9,814 8,298 Provision for pension plan (e.2) 35,166 30,908 Provision for retroactive unemployment plan (e.3) 334 373 Provision for retirements bonus plan (e.4) 687 542 Provision for other employee benefits (*) 41,645 46,249 Vacation accrual (*) 15,231 13,575 Totals 102,877 99,945 (*) Short-term benefits
Schedule of Defined Benefit Obligation and the Amounts Recognized in the Statement of Income	The movements of the present value of the obligation for this type of benefit and the amounts recognized in the Consolidated Statements of Income are determined using the projected credit unit method and it consist of the following: As of December 31, 2019 2018 MCh$ MCh$ Opening Opening balances as of January 1, 8,298 7,914 Net cost of benefits (*) 1,490 1,397 Payments (815) (973) Provisions recorded 278 (350) Exchange differences 563 310 Ending balances as of December 31, 9,814 8,298 (*) Detail of net cost of benefit is as follows: As of December 31, 2019 2018 MCh$ MCh$ Current services cost 836 Interest expense on obligation 561 Total 1,490 1,397
Schedule of Summary Effects in Other Comprehensive Income	The effect on Other Comprehensive Income is summarized as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Pension plan (e.2) (4,512) (698) 223 Retroactive unemployment plan (e.3) 113 (32) (19) Retirement bonus plan (e.4) (33) (24) 4 Total recognition of obligations for defined benefits (4,432) (754) 208
Schedule of future payments	The following is a detail of future payments for the year 2019 and 2018: Long-term Retroactive Retirement termination unemployment benefit 2019 benefits Pension plan plan plan MCh$ MCh$ MCh$ MCh$ Fiscal year 2020 948 3,116 69 64 Fiscal year 2021 1,058 2,960 16 28 Fiscal year 2022 1,250 2,793 70 47 Fiscal year 2023 1,245 2,725 77 50 Fiscal year 2024-2031 (combined) 915 2,698 29 42 Fiscal year 2025-2031 (combined) 5,134 12,844 71 222 Long-term Retroactive termination unemployment Retirement 2018 benefits Pension plan plan benefit plan MCh$ MCh$ MCh$ MCh$ Fiscal year 2019 783 2,995 66 40 Fiscal year 2020 842 2,858 38 22 Fiscal year 2021 1,003 2,682 20 26 Fiscal year 2022 1,147 2,527 70 40 Fiscal year 2023-2031 (combined) 1,160 2,457 102 43 Fiscal year 2024-2031 (combined) 4,749 11,751 94 203
Long-term employee benefits [member]
Disclosure of defined benefit plans [line items]
Summary of Economic Assumptions	The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Summary of economic assumptions Discount rate 6.25 Expected rate of salary increase 5.50 5.70
Pension plan [member]
Disclosure of defined benefit plans [line items]
Summary of Economic Assumptions	The summary of the economic assumptions is as follows: As of December 31, 2019 2018 % % Assumptions Discount rate 6.50 6.75 Expected rate of salary increases 3.00 3.20 Inflation rate 3.00 3.20
Schedule of movements of plan balances	Note 21 – Provisions, continued The detail of Pension plan balances movements is as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 30,908 31,761 Interest expense on obligation 2,120 2,359 Payments (3,768) (3,802) Actuarial losses (gains) 4,512 (698) Exchange differences 1,394 1,288 Ending balances as of December 31, 35,166 30,908
Retroactive unemployment plan [member]
Disclosure of defined benefit plans [line items]
Summary of Economic Assumptions	The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Assumptions Discount rate 5.50 5.75 Expected rate of salary increases 5.50 5.70 Inflation rate 3.00 3.20
Schedule of movements of plan balances	The details of movements for this benefits during years ended December 31, 2019 and 2018 are as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 373 371 Current services costs 136 108 Interest expense on obligations 21 24 Actuarial gains (113) (32) Payments of benefits (108) (115) Exchange differences 25 17 Ending balances as of December 31, 334 373
Retirements bonus plan [member]
Disclosure of defined benefit plans [line items]
Summary of Economic Assumptions	The economic assumptions are summarized as follows: As of December 31, 2019 2018 % % Summary of economic hypothesis Discount rate(s) 6.75 Expected rate(s) of salary increase 5.20 Inflation rate 3.20
Schedule of movements of plan balances	The amounts recognized for this benefit are as follows: 2019 2018 MCh$ MCh$ Opening balances as of January 1, 542 476 Current service costs — 39 Interest expense on obligation 81 37 Actuarial (gains) losses 33 (24) Payments of benefits (6) (5) Exchange differences 37 19 Ending balances as of December 31, 687 542

Other liabilities and liabili_2

Other liabilities and liabilities directly associated with non-current assets held for sale (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of other liabilities	a) As of December 31, 2019 and 2018 the other liabilities are as follows: As of December 31, 2019 2018 MCh$ MCh$ Accounts and notes payable (1)(2) 382,271 317,703 Dividends payable 267 270 Unearned income (3) 5,644 9,089 Unearned fees 8,321 8,604 Payables due to brokerage transactions 140,799 75,872 Collateral for financial transactions (threshold) 116,654 91,223 Other liabilities 54,958 19,034 Totals 708,914 521,795 (1) Obligations other than those directly related to the business operations, such as payable withholding taxes, payable social security contributions, balances due on purchases of materials, balances due on obligations under lease agreements for the acquisition of fixed assets, accounts payable for expenses, and others. (2) As of December 31, 2018 it includes MCh$5,985 corresponding to a penalty fee payable to the former SBIF (currently CMF). (3) It corresponds to commissions associated with financial advisory and insurance brokerage businesses that must be deferred in accordance with applicable regulations.

Contingencies, Commitments, a_2

Contingencies, Commitments, and Responsibilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Bank and Its Subsidiaries are Contractually Obliged to Grant Loans	The following table contains the amounts for which the Bank and its subsidiaries are contractually obliged to grant loans together with the relevant provisions: As of December 31, 2019 2018 MCh$ MCh$ Collateral and guarantees 548,521 411,023 Confirmed foreign letters of credit 509 — Letters of credit issued 97,553 95,476 Documented guarantees 1,501,957 1,286,805 Available on demand credit lines 2,623,744 2,143,333 Other credit commitments 1,167,802 1,447,277 Totals 5,940,086 5,383,914
Schedule of Responsibilities Arising From the Regular Course of Business	The Bank and its subsidiaries have the following responsibilities arising from their regular course of business: As of December 31, 2019 2018 MCh$ MCh$ Third party operations Collections 17,985 17,030 Transferred financial assets managed by the Bank 1,200,155 1,101,327 Third party funds under management 2,541,495 2,306,154 Subtotals 3,759,635 3,424,511 Custody of securities Securities held in custody 5,229,078 5,896,162 Securities held in custody deposited in other entities — 315,347 Securities issued by the Bank held in custody 131,648 148,193 Subtotals 5,360,726 6,359,702 Totals 9,120,361 9,784,213
Schedule of Policies	Entity From To Amount (UF) Beneficiary Consorcio Nacional de Seguros S.A. 04-12-2019 04-12-2020 60,000 and 500 Itaú Corredores de Seguros S.A.
Schedule of Performance Bond	Entity From To Amount (UF) Beneficiary Itaú Corpbanca Chile 04-23-2019 04-23-2020 16,000 Bolsa Electrónica de Chile Mapfre Compañía de Seguros S.A 04-23-2019 04-23-2020 4,000 Bolsa de Comercio de Santiago Itaú Corpbanca Chile 04-23-2019 04-23-2020 10,000 Comisión para el Mercado Financiero
Schedule of Comprehensive Insurance Policy	Amounts recorded with respect to the comprehensive insurance policy are as follows: Entity From To Amount (UF) Beneficiary Orión Seguros Generales S.A 05-29-2019 05-31-2020 5,000 and 10,000 Bolsa Electrónica de Chile
Schedule of Guarantee Slips and Beneficiaries	Entity From To Amount (UF) Amount (MCh$) Beneficiary Banco Santander Chile 06-02-2017 08-31-2021 15,000 — Corporación de Fomento de la Producción CORFO Banco Santander Chile 08-14-2017 08-30-2021 500 — Corporación de Fomento de la Producción CORFO Itaú Corpbanca 06-27-2019 07-01-2020 — 50 Ferrocarriles del Estado

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Paid in Capital of the Bank	As of December 31, 2019, 2018 and 2017, the paid-in capital of the Bank is represented by common shares subscribed and paid, with no par value, and its motion presented below: Common shares 2019 2018 2017 (number) (number) (number) Issued as of January 1, 512,406,760,091 512,406,760,091 512,406,760,091 Issuance of paid shares — — — Increase in share for Itaú-Corpbanca business combination — — — Issuance of shares pending payment — — — Repurchase of own shares — — — Sale of own shares — — — Totals 512,406,760,091 512,406,760,091 512,406,760,091
Schedule of Shareholder List	The shareholders list as of December 31, 2019, 2018 and 2017, is as follows: Shares 2019 2018 2017 Number of Ownership Number of Ownership Number of Ownership Company name or shareholder name shares % shares % shares % Itaú Unibanco 195,408,043,473 38.14 % 195,408,043,473 38.14 % 184,756,488,453 36.06 % Itaú Unibanco Holding S.A. 115,039,610,411 22.45 % 115,039,610,411 22.45 % 115,039,610,411 22.45 % ITB Holding Brasil Participaçoes Ltda. 57,008,875,206 11.13 % 57,008,875,206 11.13 % 57,008,875,206 11.13 % CGB II SpA 10,908,002,836 2.13 % 10,908,002,836 2.13 % 10,908,002,836 2.13 % CGB III SpA 1,800,000,000 0.35 % 1,800,000,000 0.35 % 1,800,000,000 0.35 % Saga II SpA 7,000,000,000 1.37 % 7,000,000,000 1.37 % — — % Saga III SpA (1) 3,651,555,020 0.71 % 3,651,555,020 0.71 % — — % Saieh Family 146,394,540,608 28.57 % 146,394,540,608 28.57 % 157,046,095,628 30.65 % Corp Group Banking S.A. 136,127,850,073 26.57 % 136,127,850,073 26.57 % 136,127,850,073 26.57 % Compañía Inmobiliaria y de Inversiones Saga SpA (2) 10,266,690,535 2.00 % 10,266,690,535 2.00 % 20,918,245,555 4.08 % International Finance Corporation 17,017,909,711 3.32 % 17,017,909,711 3.32 % 17,017,909,711 3.32 % Others 153,586,266,299 29.97 % 153,586,266,299 29.97 % 153,586,266,299 29.97 % Stock brokers 63,397,824,244 12.37 % 55,791,614,655 10.89 % 53,400,666,996 10.42 % ADR holders and foreign investors 50,376,882,652 9.83 % 42,838,887,354 8.36 % 50,064,467,904 9.77 % Asset management companies 27,989,426,434 5.46 % 17,778,018,941 3.47 % 16,892,054,779 3.30 % Santo Domingo Group 11,822,132,969 2.31 % 9,817,092,180 1.92 % 9,817,092,180 1.92 % Insurance companies — — % 5,220,388,512 1.02 % 5,212,338,243 1.02 % Pension funds management companies — — % 3,981,075,117 0.77 % 944,399,401 0.18 % Other minority shareholders — — % 18,159,189,540 3.54 % 17,255,246,796 3.36 % Totals 512,406,760,091 100 % 512,406,760,091 100 % 512,406,760,091 100 % (1) Shares in custody of a third party. (2) Includes 640,844,096 shares in custody of a third party.
Schedule of Distribution of Dividends	At the Ordinary Meeting of the Shareholders of Itaú Corpbanca held on March 19, 2019, the shareholders agreed to distribute net income for MCh$51,614 representing 30% of the profits for 2018 (as filed with the CMF) and at an Ordinary Meeting of the Shareholders of Itaú Corpbanca held on March 27, 2018, the shareholders agreed to distribute profits for MCh$22,979, representing 40% of the 2017 net income (as filed with the CMF). See Note 39 “Subsequent events” for 2019 dividends distribution decision. Income Allocated to attributable to reserves and Dividend per equity holders retained Allocated to Percentage share Years (*) earnings (*) dividends distributed Number of shares (in pesos) MCh$ MCh$ MCh$ % Year 2018 (Shareholders’ Meeting March 2019) 172,047 120,433 51,614 0.30 512,406,760,091 0.10073 Year 2017 (Shareholders’ Meeting March 2018) 57,447 34,468 22,979 0.40 512,406,760,091 0.04485 (*) According to the Consolidated Financial Statements filed with the CMF.
Schedule of Attributable to the Equity Holders of the Bank	Note 24 – Equity, continued As of December 31, 2019 and 2018 and for the year ended December 31, 2019, 2018 and 2017, the basic earnings and diluted earnings are as follows: As of and for the years ended December 31, 2019 2018 2017 N° of Shares Amount N° of Shares Amount N° of Shares Amount Millions MCh$ Millions MCh$ Millions MCh$ Basic earnings per share Net income for the period — 113,684 — 171,331 — 67,821 Weighted average number of outstanding shares 512,407 — 512,407 — 512,407 — Assumed convertible debt conversion — — — — — — Adjusted number of outstanding shares 512,407 — 512,407 — — — Basic earnings per share (Chilean pesos) — 0.222 — 0.334 — 0.132 Diluted earnings per share Net income for the period — 113,684 — 171,331 — 67,821 Weighted average number of outstanding shares 512,407 — 512,407 — 512,407 — Dilutive effects Assumed convertible debt conversion — — — — — — Conversion of common shares — — — — — — Options rights — — — — — — Adjusted number of shares 512,407 — 512,407 512,407 — — Diluted earnings per share (Chilean pesos) — 0.222 — 0.334 — 0.132
Schedule of Equity Effects and Income Taxes	Note 24 – Equity, continued The following are the equity effects and income taxes for years ended December 31, 2019 and 2018: Exchange differences on Hedge of net investment in Debt investments in Colombia and Defined Equity instruments Cash flow foreign New York benefits instruments As of December 31, 2019 at FVTOCI hedge operations branch obligations at FVTOCI Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2019 16,459 5,559 29,403 (19,119) (3,236) 1,334 30,400 Effects for the period 21,025 (6,381) (46,786) 56,487 (3,248) 540 21,637 Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings — — — (40) — (135) (175) Ending balances as of December 31, 2019 37,484 (822) (17,383) 37,328 (6,484) 1,739 51,862 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2019 (6,904) (280) (7,746) — 689 — (14,241) Effects for the period (5,801) (185) 14,373 — 1,109 — 9,496 Ending balances as of December 31, 2019 (12,705) (465) 6,627 — 1,798 — (4,745) Net balances as of December 31, 2019 24,779 (1,287) (10,756) 37,328 (4,686) 1,739 47,117 Exchange differences on Hedge of net investment in Debt investments Colombia and Defined Equity instruments Cash flow in foreign New York benefits instruments As of December 31, 2018 at FVTOCI hedge operations branch obligations at FVTOCI Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2018 16,592 (5,730) 64,741 (57,485) (2,736) — 15,382 Changes due initial adoption IFRS 9 481 — — — — 1,015 1,496 Restated opening balances as of January 1, 2018 17,073 (5,730) 64,741 (57,485) (2,736) 1,015 16,878 Effects for the year (614) 11,289 (35,338) 38,366 (500) 319 13,522 Ending balances as of December 31, 2018 16,459 5,559 29,403 (19,119) (3,236) 1,334 30,400 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2018 (4,937) 1,389 (17,287) — 718 — (20,117) Changes due initial adoption IFRS 9 (499) — — — — — (499) Restated opening balances as of January 1, 2018 (5,436) 1,389 (17,287) — 718 — (20,616) Effects for the year (1,468) (1,669) 9,541 — (29) — 6,375 Ending balances as of December 31, 2018 (6,904) (280) (7,746) — 689 — (14,241) Net balances as of December 31, 2018 9,555 5,279 21,657 (19,119) (2,547) 1,334 16,159 Note 24 – Equity, continued Exchange differences on Hedge of net investment Available for investments in Colombia Defined sale Cash flow in foreign and New York benefits As of December 31, 2017 investments hedge operations branch obligations Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Other comprehensive income (loss) before income taxes Opening balances as of January 1, 2017 10,372 (5,603) 14,917 2,380 (2,598) 19,468 Effects for the period 6,220 (127) 49,824 (59,865) (138) (4,086) Ending balances as of December 31, 2017 16,592 (5,730) 64,741 (57,485) (2,736) 15,382 Income taxes related to components of other comprehensive income (loss) Opening balances as of January 1, 2017 (2,764) 1,345 (3,219) — 722 (3,916) Effects for the period (2,173) 44 (14,068) — (4) (16,201) Ending balances as of December 31, 2017 (4,937) 1,389 (17,287) — 718 (20,117) Net balances as of December 31, 2017 11,655 (4,341) 47,454 (57,485) (2,018) (4,735)
Schedule of Non-controlling Interest in the Subsidiary's Equity and Profit	As of December 31, 2019 Other Comprehensive Income Hedge of Exchange net Financial differences investment Cash Defined Total other Total Non- Net instruments at on in foreign flow benefits Deferred comprehensive comprehensive Subsidiaries controlling Equity income FVTOCI (1) translation operations hedge obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguro Colombia S.A. 20.200 478 125 — — — — — — — 125 Itaú Corpbanca Colombia S.A. and subsidiaries (2) 12.900 93,967 10,713 952 17,368 — (411) (1,184) 331 17,056 27,769 Itaú Corredores de Seguros S.A. — — — — — — — — — — — Totals 94,445 10,838 952 17,368 — (411) (1,184) 331 17,056 27,894 (1) Financial instruments at FVOCI includes debt instruments for MCh$678 and equity instruments MCh$274. (2) On December 3, 2019, after obtaining regulatory approvals from banking supervisors in Chile, Colombia and Brazil, Itaú Corpbanca completed the acquisition of the Itaú Corpbanca Colombia shares owned by Helm LLC and Kresge Stock Holding Company Inc. As a result of these acquisitions, Itaú Corpbanca owns approximately 87.10% of the shares of Itaú Corpbanca Colombia. Note 24 – Equity, continued As of December 31, 2018 Other Comprehensive Income Hedge of Exchange net Financial differences investment Cash Defined Total other Total Non- Net instruments at on in foreign flow benefits Deferred comprehensive comprehensive Subsidiaries controlling Equity income FVTOCI (3) translation operations hedge obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguro Colombia S.A. 20.200 % 409 15 — — — — — — — 15 Itaú Corpbanca Colombia S.A. y filiales 33.721 % 217,673 (4,500) (664) 10,244 (1,195) — (254) 305 8,436 3,936 Itaú Corredores de Seguros S.A. (4) — % — 8 — — — — — — — 8 Itaú Administradora General de Fondos S.A. (5) — % — — — — — — — — — — Itaú Corpbanca Corredores de Bolsa Limitada (6) — % — — — — — — — — — — Totals 218,082 (4,477) (664) 10,244 (1,195) — (254) 305 8,436 3,959 (3) Financial instruments at FVOCI includes debt instruments for MCh$827 loss and equity instruments MCh$163 gain. As of December 31, 2017 Other Comprehensive Income Hedge of Exchange net Available differences investment Cash Defined Total other Non- Net for sale on in foreign Flow benefits Deferred comprehensive Comprehensive Subsidiaries controlling Equity income investments translation operations hedges obligations Tax income income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Itaú Corredor de Seguros S.A 20.200 % 380 (5) — — — — — — — (5) Itaú Corpbanca Colombia S.A 33.721 % 216,883 (5,001) 3,746 (18,437) (627) — (70) (1,305) (16,693) (21,694) Itaú Chile Corredores de Seguros Ltda. (4) 0.029 % 12 10 — — — — — — — 10 Itaú Administradora General de Fondos S.A. (5) 0.600 % 1 — — — — — — — — — Itaú Corpbanca Corredores de Bolsa Ltda. (6) — % 4 — — — — — — — — — Totals 217,280 (4,996) 3,746 (18,437) (627) — (70) (1,305) (16,693) (21,689)
Schedule of Non-controlling Interest Movement	The following table shows the non-controlling interest movements for the year ended December 31, 2019, 2018 and 2017: As of December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Opening balances as of January 1, 218,082 217,280 238,969 Changes due to initial application of IFRS 9 — (3,157) — Restated opening balances as of January 1, 218,082 214,123 238,969 Increase participation in Colombia (151,531) — — Comprehensive income 27,894 3,959 (21,689) Ending balances as of December 31, 94,445 218,082 217,280
Schedule of Main Subsidiary with Non-controlling Interest	The main subsidiary with non-controlling interest of Itaú Corpbanca, is the following: As of December 31, 2019 2018 Group Non-controlling Group Non-controlling Entity Name Country participation participation participation participation Itaú Corpbanca Colombia S.A. and subsidiaries Colombia 87.10 % 12.90 % 66.28 % 33.72 %
Schedule of Consolidation Elimination Adjustments	Note 24 – Equity, continued Summarized financial information for the main subsidiary with non-controlling interest, is as follows: As of December 31, Summary Statements of Financial Position 2019 2018 2017 MCh$ MCh$ MCh$ Current assets 5,383,819 4,669,275 4,589,487 Current liabilities (3,112,252) (3,523,186) (3,939,253) Net current assets (liabilities) 2,271,567 1,146,089 650,234 Non-current assets 1,174,958 1,664,700 1,690,890 Non-current liabilities (2,729,714) (2,160,781) (1,697,961) Net non-current assets (liabilities) (1,554,756) (496,081) (7,071) Total net assets (liabilities) 716,811 650,008 643,163 Accumulated non-controlling interest 93,967 217,673 216,883
Summary of Income Statements	For the years ended December 31, Summary Income Statements 2019 2018 2017 MCh$ MCh$ MCh$ Interest income and readjustments 528,150 553,937 579,176 Income of the period 16,490 (13,087) (14,830) Non-controlling interests income 10,713 (4,500) (5,001)
Summary of Cash Flows Statements	For the years ended December 31, Summary Cash Flows Statements 2019 2018 2017 MCh$ MCh$ MCh$ Net cash flows provided by (used in) operating activities (359,168) 232,480 16,822 Net cash flows provided by (used in) investing activities 111,607 (145,665) (158,402) Net cash flows provided by (used in) financing activities 115,303 (24,122) 35,937 Net increase (decrease) in cash flows (132,258) 62,693 (105,643)
Schedule of Consolidated Comprehensive Income	Note 24 – Equity, continued g) Consolidated comprehensive income for the years ended December 31, 2019, 2018 and 2017 2019 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 113,684 10,838 124,522 Other comprehensive income (loss) before income taxes Debt instruments at fair value through other comprehensive income 21,025 678 21,703 Hedge of net investment in foreign operations (46,786) — (46,786) Cash flow hedge (6,381) (411) (6,792) Exchange differences 56,487 17,368 73,855 Changes in the fair value of equity investments at fair value through other comprehensive income 540 274 814 Defined benefits obligation (3,248) (1,184) (4,432) Subtotals 21,637 16,725 38,362 Income taxes Debt instruments at fair value through other comprehensive income (5,801) (125) (5,926) Hedge of net investment in foreign operations 14,373 — 14,373 Cash flow hedge (185) 23 (162) Defined benefits obligation 1,109 433 1,542 Subtotals 9,496 331 9,827 Other comprehensive income for the year 31,133 17,056 48,189 Comprehensive income for the year 144,817 27,894 172,711 2018 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 171,331 (4,477) 166,854 Other comprehensive income (loss) before income taxes Debt instruments at fair value through other comprehensive income (614) (827) (1,441) Net investment in foreign operations hedges (35,338) (1,195) (36,533) Cash flow hedges 11,289 — 11,289 Exchange differences 38,366 10,244 48,610 Changes in the fair value of equity investments at fair value through other comprehensive income 319 163 482 Defined benefits obligations (500) (254) (754) Subtotals 13,522 8,131 21,653 Income taxes Debt instruments at fair value through other comprehensive income (1,468) (704) (2,172) Net investment in foreign operations hedges 9,541 1,024 10,565 Cash flows hedges (1,669) — (1,669) Defined benefits obligations (29) (15) (44) Subtotals 6,375 305 6,680 Other comprehensive income (loss) for the year 19,897 8,436 28,333 Comprehensive income (loss) for the year 191,228 3,959 195,187 Note 24 – Equity, continued 2017 Equity holders Non-controlling Concepts of the Bank interest Totals MCh$ MCh$ MCh$ Income (loss) for the year 67,821 (4,996) 62,825 Other comprehensive income (loss) before income taxes Available for sale investments 6,220 3,746 9,966 Net investment in foreign operations hedges 49,824 (627) 49,197 Cash flow hedges (127) — (127) Exchange differences (59,865) (18,437) (78,302) Defined benefits obligations (138) (70) (208) Subtotals (4,086) (15,388) (19,474) Income taxes Available for sale investments (2,173) (1,160) (3,333) Net investment in foreign operations hedges (14,068) (143) (14,211) Cash flows hedges 44 — 44 Defined benefits obligations (4) (2) (6) Subtotals (16,201) (1,305) (17,506) Other comprehensive income (loss) for the year (20,287) (16,693) (36,980) Comprehensive income (loss) for the year 47,534 (21,689) 25,845

Interest Income and Interest _2

Interest Income and Interest Expense (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Composition of Interest Income and Inflation-indexing	a) The composition of interest income and inflation-indexing for the years ended December 31, 2019, 2018 and 2017 is as follows: For the years ended December 31, 2019 2018 2017 Inflation Inflation Inflation Interest adjustments (1) Totals Interest adjustments (1) Totals Interest adjustments (1) Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Investments under agreements to resell 4,996 (2) 4,994 4,988 — 4,988 6,643 2 6,645 Loans and receivables to banks 4,361 — 4,361 5,013 — 5,013 5,460 — 5,460 Commercial loans 850,212 119,461 969,673 816,193 115,468 931,661 872,416 68,729 941,145 Mortgage loans 202,945 107,352 310,297 196,598 107,364 303,962 188,094 59,149 247,243 Consumer loans 379,030 135 379,165 372,148 194 372,342 360,268 64 360,332 Financial investments 79,114 15,539 94,653 101,274 19,060 120,334 70,556 8,274 78,830 Other interest income 17,588 2,543 20,131 10,882 9,850 20,732 9,656 545 10,201 Gain (loss) from accounting hedges (*) (9,634) — (9,634) (19,715) — (19,715) (3,527) — (3,527) Totals 1,528,612 245,028 1,773,640 1,487,381 251,936 1,739,317 1,509,566 136,763 1,646,329
Schedule of Detail of the Amount Due for Interest and Readjustments	a) For the years ended December 31, 2019, 2018 and 2017, the detail of the amount of interest and inflation-indexation adjustment expense is as follows: For the years ended December 31, 2019 2018 2017 Inflation Inflation Inflation Interest adjustments (1) Totals Interest adjustments (1) Totals Interest adjustments (1) Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Deposits and other demand liabilities (52,181) (220) (52,401) (49,536) (141) (49,677) (72,732) (139) (72,871) Obligations under repurchase agreements (26,349) — (26,349) (29,660) (4) (29,664) (32,677) — (32,677) Time deposits and other time liabilities (369,048) (8,560) (377,608) (370,206) (15,528) (385,734) (420,190) (13,047) (433,237) Interbank borrowings (81,557) — (81,557) (69,054) (206) (69,260) (51,922) (2,463) (54,385) Debt instruments issued (212,346) (130,127) (342,473) (199,420) (122,832) (322,252) (210,104) (72,780) (282,884) Other financial liabilities (501) — (501) (752) — (752) (114) — (114) Lease obligations (5,034) (92) (5,126) — — — — — — Other Interest expense (79) (3,227) (3,306) (397) (4,292) (4,689) (556) (1,962) (2,518) Gain (loss) from hedge accounting (*) 16,099 — 16,099 10,374 — 10,374 15,339 — 15,339 Totals (730,996) (142,226) (873,222) (708,651) (143,003) (851,654) (772,956) (90,391) (863,347) (1) The inflation indexation adjustment is the result of changes in the Unidades de Fomento (“UF”). The UF is an inflation-index Chilean monetary unit with a value in Chilean pesos that changes daily to reflect changes in the Official Consumer Price Index (“CPI”) of the Instituto Nacional de Estadísticas (the Chilean National Institute of Statistics) for the previous month. The effect of any changes in the nominal peso value of our UF-denominated interest earning assets and interest bearing liabilities is reflected in our results of operations as an increase (or decrease, in the event of deflation) in interest income and expense respectively. (*) The mark to market adjustments are presented in this line for hedging derivatives used in hedging of assets except in the case of foreign currency hedges and cash flow hedges (cross-currency), their all-in mark to market adjustment is included in the foreign exchange gain (losses) (see Note 28 “Net foreign exchange income (losses)”).

Fee and Commission Income and_2

Fee and Commission Income and Expense (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Services Rendered by the Bank and Its Subsidiaries and Correspond	This item comprises the financial income for the year corresponding to remunerations generated by the services rendered by the Bank and its subsidiaries and corresponds to the following items: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Fees and commissions from lines of credits and overdrafts 1,553 5,292 3,306 Fees and commissions from guarantees and letters of credit 15,147 15,317 14,776 Fees and commissions from card services 75,574 72,932 63,388 Fees and commissions from accounts management 15,406 11,512 12,024 Fees and commissions from collections and payments 23,921 20,359 25,359 Fees and commissions from brokerage and securities management 9,844 10,966 13,183 Fees and commissions from asset management 25,845 24,718 25,965 Compensation for insurance brokerage 35,783 36,693 26,096 Investment banking and advisory fees 20,657 19,403 8,162 Fees and commissions from student loans ceded 5,735 5,300 4,680 Commissions on loan transactions 893 651 2,560 Commissions for mortgage loans 1,300 1,486 1,112 Other fees from services rendered 10,321 10,982 12,088 Other commissions earned 2,217 2,345 3,721 Totals 244,196 237,956 216,420
Summary of Expenses for Commissions Accrued in the Year for the Operations	This item includes expenses for commissions accrued during the year from operations, and corresponds to the following items: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Compensation for cards transactions (55,232) (35,676) (23,439) Fees and commissions for securities transactions (2,716) (2,963) (4,855) Commissions paid for foreign trade transactions (2,300) (2,550) (2,449) Commissions paid for customer loyalty program benefits (3,725) (2,607) (1,439) Commissions paid for services to customers management (3,905) (3,455) (3,157) Other commissions paid (1,914) (4,576) (3,510) Totals (69,792) (51,827) (38,849)
The Income and Expenses for Commissions Generated by the Segment	a) Below are the income and expenses for commissions generated by segment and the revenue recognition calendar for ordinary activities, for the year ended December 31, 2019 according to IFRS 15. Revenue recognition calendar Segments for ordinary activities Transferred Transferred at a point in Accrual Chile Colombia Total over time time model MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fees and commissions from lines of credits and overdrafts 1,453 101 1,554 1,453 101 — Fees and commissions from guarantees and letters of credit 12,086 3,060 15,146 12,086 3,060 — Fees and commissions from card services 49,393 26,182 75,575 — 75,575 — Fees and commissions from accounts management 12,534 2,872 15,406 — 15,406 — Fees and commissions from collections and payments 15,651 8,271 23,922 — 10,385 13,537 Fees and commissions from brokerage and securities management 5,785 4,057 9,842 — 9,842 — Fees and commissions from asset management 15,727 10,118 25,845 — 25,845 — Compensation for insurance brokerage 35,783 — 35,783 — — 35,783 Investment banking and advisory fees 20,657 — 20,657 — 20,657 — Fees and commissions from student loans ceded 7,057 — 7,057 — 7,057 — Commissions on loan transactions 473 — 473 — 473 — Commissions for mortgage loans 753 — 753 — 753 — Other commissions earned 1,223 10,960 12,183 — 12,183 — Totals 178,575 65,621 244,196 13,539 181,337 49,320 Revenue recognition calendar Segments for ordinary activities Transferred Transferred at a point in Accrual Chile Colombia Total over time time model MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Compensation for cards transactions (29,950) (25,282) (55,232) — (55,232) — Fees and commissions for securities transactions (1,557) (1,159) (2,716) — (2,716) — Commissions paid for foreign trade transactions — — — — — — Commissions paid for customer loyalty program benefits — — — — — — Commissions paid for services to customers management — — — — — — Other commissions paid (4,625) (7,219) (11,844) — (11,844) — Totals (36,132) (33,660) (69,792) — (69,792) —

Net Income (Expense) from Fin_2

Net Income (Expense) from Financial Operations (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Net Income (Expense) from Financial Operations in the Consolidated Statements of Income	Net income (expense) from financial operations in the Consolidated Statements of Income for the year is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Trading instruments (securities) 17,287 2,527 43,323 Financial derivative contracts (trading) 77,040 152,732 (63,992) Sale of loans and accounts receivable from customers (*) 14,588 1,602 15,121 Net gain on sale of financial instruments at fair value through other comprehensive income 35,489 13,765 — Net gain on sale of available for sale investments — — 13,641 Others (770) 2,129 175 Totals 143,634 172,755 8,268 (*) See details Note 10, letter d.

Net Foreign Exchange Gain (Lo_2

Net Foreign Exchange Gain (Loss) (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Net Foreign Exchange Gains (Losses)	Net foreign exchange gains (losses) details are as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Net foreign exchange gain (loss) Gain (loss) on net foreign currency exchange positions 37,404 (64,278) 131,196 Other foreign currency exchange gains (losses) 4,128 5,421 1,537 Subtotals 41,532 (58,857) 132,733 Net exchange rate adjustments gain (loss) Adjustments for loans and accounts receivable from customers 702 93 (82) Adjustment for investment instruments — 105 (824) Adjustment for other assets and liabilities 2 (322) 1,385 Net gain (loss) from hedge accounting (14,610) 41,016 (87,047) Subtotals (13,906) 40,892 (86,568) Totals 27,626 (17,965) 46,165

Provisions for Impairment of _2

Provisions for Impairment of Financial Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Changes in Provision for Loan Losses Recorded on the Income	a) The movement registered in income for the year related to allowances and impairment due to credit risk, for the years ended December 31, 2019, 2018 and 2017, is summarized as follows: 2019 – According to IFRS 9 Financial Financial Interbank Loans and accounts receivable from customers at amortized cost instruments at instruments at Contingent 2019 loans Commercial Mortgage Consumer FVTOCI amortized cost loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loss for provisions established (507) (423,043) (35,031) (279,002) (2,223) (9) (25,577) (765,392) Income for provisions released 765 178,243 9,102 89,247 19 — 46,673 324,049 Recovery of loans previously charged-off — 22,213 2,791 33,661 — — — 58,665 Net charge to income 258 (222,587) (23,138) (156,094) (2,204) (9) 21,096 (382,678) 2018 – According to IFRS 9 Financial Financial Interbank Loans and accounts receivable from customers at amortized cost Instruments at instruments at Contingent 2018 loans Commercial Mortgage Consumer FVTOCI amortized cost loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loss for provisions established (344) (634,886) (78,185) (562,620) (25) — (14,511) (1,290,571) (*) Income for provisions released 131 474,192 78,873 380,294 411 50 28,354 962,305 (*) Recovery of loans previously charged-off — 19,921 2,588 25,959 — — — 48,468 Net charge to income (213) (140,773) 3,276 (156,367) 386 50 13,843 (279,798) 2017 – According to IAS 39 Loans and accounts receivable from customers Interbank Commercial Mortgage Consumer 2017 loans loans loans loans Totals MCh$ MCh$ MCh$ MCh$ MCh$ Provisions established Individually assessed (226) (338,701) — — (338,927) Collectively assessed — (104,171) (63,699) (312,697) (480,567) Income (loss) for provisions established (226) (442,872) (63,699) (312,697) (819,494) (*) Provisions released Individually assessed 209 302,504 — — 302,713 Collectively assessed — 33,538 31,310 104,953 169,801 Income (loss) for provisions released 209 336,042 31,310 104,953 472,514 (*) Recovery of loans previously charged-off — 13,236 1,908 16,419 31,563 Net charge to income (17) (93,594) (30,481) (191,325) (315,417) (*)The amounts disclosed in the Consolidated Statements of Cash Flows are detailed below: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Charge to income for provisions established 765,392 1,290,571 819,494 Credit to income for provisions used (324,049) (962,305) (472,514) 441,343 328,266 346,980
Schedule of Established and Released Provision Amounts	a) The detail by type of loans, analyzed collectively and individually, which were constituted and released by way of provision, is as follows: 2019 – According to IFRS 9 As of December 31, 2019 Note Provision established Provision released Totals MCh$ MCh$ MCh$ Commercial (423,043) 178,243 (244,800) Mortgage (35,031) 9,102 (25,929) Consumer (279,002) 89,247 (189,755) Subtotals 10 (737,076) 276,592 (460,484) Interbank loans, net 9 (507) 765 258 Totals (737,583) 277,357 (460,226) 2018 – According to IFRS 9 As of December 31, 2018 Note Provision established Provision released Totals MCh$ MCh$ MCh$ Commercial (634,886) 474,192 (160,694) Mortgage (78,185) 78,873 688 Consumer (562,620) 380,294 (182,326) Subtotals 10 (1,275,691) 933,359 (342,332) Interbank loans, net 9 (344) 131 (213) Totals (1,276,035) 933,490 (342,545) 2017 – According to IAS 39 As of December 31, 2017 Provisions established Provisions released Note Individual Group Totals Individual Group Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans (338,701) (104,171) (442,872) 302,504 33,538 336,042 Mortgage loans — (63,699) (63,699) — 31,310 31,310 Consumer loans — (312,697) (312,697) — 104,953 104,953 Subtotals 10 (338,701) (480,567) (819,268) 302,504 169,801 472,305 Interbank loans, net 9 (226) — (226) 209 — 209 Totals (338,927) (480,567) (819,494) 302,713 169,801 472,514

Personnel Salaries and Expens_2

Personnel Salaries and Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Personnel Salaries and Expenses	For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Personnel compensation (181,431) (176,083) (174,029) Bonuses or gratifications (82,129) (84,754) (68,946) Compensation for years of service (12,830) (12,477) (18,803) Training expenses (825) (804) (734) Health and life insurance (2,910) (2,590) (3,487) Other personnel expenses (18,084) (18,039) (15,324) Totals (298,209) (294,747) (281,323)

Administrative Expenses (Tables

Administrative Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Administration Expenses	For the years ended as of December 31, 2019, 2018 and 2017, the composition of this item is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Administrative expenses (177,919) (214,666) (217,130) Maintenance and repair of fixed assets (35,213) (31,673) (34,754) Office lease — (36,201) (36,482) Equipment lease — (2,925) (2,890) Insurance payments (16,389) (20,704) (22,624) Office supplies (1,679) (1,885) (2,228) IT and communications expenses (47,878) (43,667) (41,872) Utilities and other services (4,558) (4,443) (5,022) Security and transportation of securities services (5,232) (5,250) (4,691) Representation and personnel travel expenses (3,345) (3,612) (3,347) Legal and notarial expenses (20,384) (15,112) (9,546) Technical report fees (13,647) (11,626) (11,274) Professional services fees (1,656) (1,825) (2,358) Fees for classification of titles — (134) (1,613) Fines (1,947) (6,059) (75) ATM maintenance and management services (2,436) (2,630) (5,837) Temporary external services (1,032) (545) (812) Postage and mailing expenses (1,110) (1,341) (1,397) Internal events (648) (248) (666) Commercial programs (1,246) (1,242) (1,253) Credit card management services (4,051) (3,102) (4,363) Other administrative expenses (15,468) (20,442) (24,026) Subcontracted services (22,134) (22,303) (24,724) Data processing (12,990) (13,044) (14,733) Products sales — (275) (832) Others (9,144) (8,984) (9,159) Board of Directors compensation (1,350) (1,529) (1,394) Marketing and advertising (13,353) (14,384) (16,268) Real estate taxes, contributions and levies (34,125) (38,854) (46,106) Real estate taxes (286) (393) (671) Patents (1,206) (1,121) (1,430) Other taxes (*) (24,467) (29,324) (36,031) Contributions to SBIF (8,166) (8,016) (7,974) Totals (248,881) (291,736) (305,622) (*) These amounts primarily correspond to taxes other than income taxes that affect Itaú Corpbanca Colombia and its subsidiaries (Colombian segment). These are taxes on local financial transactions, ongoing performance of commercial activities or services, non-discountable value added tax and equity tax, among others.

Depreciation, Amortization, a_2

Depreciation, Amortization, and Impairment (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Depreciation and Amortization Expenses	The amounts corresponding to charges to results for depreciation and amortization for the years ended December 31, 2019, 2018 and 2017, are detailed below: For the years ended December 31, Notes 2019 2018 2017 MCh$ MCh$ MCh$ Depreciation of property, plant and equipment 14 (21,169) (20,659) (19,370) Amortization of intangible assets 13 (74,140) (66,158) (62,475) Depreciation of assets for right-of-use assets 15 (31,857) — — Totals (127,166) (86,817) (81,845)
Schedule of Impairment losses	For the years ended December 31, 2019, 2018 and 2017, the composition of this item is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Impairment of financial investments available-for-sale — — — Impairment of financial investments held-to-maturity — — — Subtotal financial assets — — — Impairment of property, plant and equipment (1) (489) (28) (27) Impairment of goodwill and intangibles (239) — — Subtotal Non-financial assets (728) (28) (27) Totals (728) (28) (27) Corresponds to impairment for due to technological obsolescence caused by the current regulations (Decree N°222 of October 30, 2013 of the Ministry of the Interior and Public Security) applied to ATMs, which is in accordance with stipulated by IAS 36 Impairment of assets.
Schedule of CGU Book Value	As of December 31, CGU 2019 2018 MCh$ MCh$ Chile 2,366,517 2,600,114 Colombia 959,821 843,943
Schedule of Respective Authorizations were Obtained in Brazil, Chile and Colombia, Recording and Allocating Goodwill	The Goodwill generated in the reverse acquisition mentioned in Note 1, section “General information background of Itaú Corpbanca and subsidiaries” was allocated in the following manner to the two identified CGUs 2 : As of December 31, Goodwill 2019 2018 MCh$ MCh$ Chile 904,868 904,868 Colombia 246,151 230,524
Schedule of Assumptions Used in Calculating the Recoverable Amount	The key assumptions used in calculating recoverable amount, defined as those variables to which the calculation is more sensitive, are presented below: As of December 31, 2019 2018 Chile Colombia Chile Colombia Perpetuity rate (%) 5.20 6.50 5.20 6.50 Projected inflation rate (%) 3.00 3.00 3.00 3.00 Discount rate (%) 10.00 11.30 10.59 11.99 Loans growth (%) 9.05 - 10.28 9.70 – 10.30 9.65 – 11.10 8.60 – 10.40 Solvency index limit (%) 11.40 – 12.40 10.60 – 14.00 12.50 – 14.70 11.50 – 4.00
Schedule of Impairment Assessment Process	As a result of the impairment testing process described above, management concludes that the recoverable amount of the CGUs exceeds their carrying amount, as shown in the following table: As of December 31, 2019 2018 Chile Colombia Chile Colombia Recoverable Amount / Carrying Value (%) 121.38 107.09 113.00 102.90
Schedule of Discount Rates and Growth in Perpetuity	The Bank has sensitized discount and growth rates at perpetuity separately for CGU Colombia so that the Recoverable Amount (AR) of CGU Colombia is equal to its Carrying Value (CV): As of December 31, 2019 2018 Discount rates (%) 12.35 12.21 Perpetuity growth rate (%) 6.28 6.29 Management has considered and analyzed possible reasonable changes in key assumptions and has not identified other situations in which the Carrying Value exceeds the Recoverable Amount. Additionally, the ranges of the discount and growth rates in perpetuity of the CGU Colombia have been sensitized, separately, in both cases of 60 basis points As of December 31, 2019 2018 Discount rates (%) 11.30 11.99 Range (%) 10.70 – 11.90 11.39 – 12.59 Range (RA/CV) (%) 91.70 – 120.90 93.01 – 118.21 Perpetuity growth rate (%) 6.50 6.50 Range (%) 5.90 – 7.10 5.90 – 7.10 Range (RA/CV) (%) 93.37 – 118.71 94.72 – 116.05
Schedule of Cash Flows	The following table shows the effect of considering the flows and the discount rate before taxes. As of December 31, 2019 2018 Chile Colombia Chile Colombia Discount rates (%) 13.22 18.08 Recoverable amount/Carrying value (%) 126.50 111.90

Other operating income and ex_2

Other operating income and expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Other Operating Income	The detail of other operating income is as follows: For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Income from assets received in lieu of payment Gain on sales of assets received in lieu of payment 5,449 8,562 5,566 Other income 13,163 30 2,578 Subtotals 18,612 8,592 8,144 Other income Compensations from insurance companies 6 53 — Gain on sale of property, plant and equipment 2,248 5,519 14,119 Recovery of leased assets 73 1,349 522 Other operating income, subsidiaries 3,020 2,158 3,092 Gain on sale of leased assets 1,914 1,447 19 Other operating income 432 199 173 Revenue from insurance companies agreement 4,538 3,626 4,128 Other operating income, leases 267 724 446 Other income for recovery foreign expenses 747 620 420 Recoveries from expenses provisions 7,243 1,166 2,352 Other income 5,872 1,203 8,117 Subtotals 26,360 18,064 33,388 Totals 44,972 26,656 41,532
Schedule of Other Operating Expenses	During the years ended December 31, 2019, 2018 and 2017, the Bank presents other operating expenses according to the following detail : For the years ended December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Provisions for assets received in lieu of payment (18,062) (16,132) (14,472) Maintenance expenses for assets received in lieu of payment (1,663) (1,301) (714) Subtotal (19,725) (17,433) (15,186) Provisions for contingencies Other provisions for contingencies (507) (1,998) (586) Subtotals (507) (1,998) (586) Other expenses. Loss on sale of property, plant and equipment (655) (307) (1,099) Credit card loyalty point benefits expenses — (14,306) (13,238) Operating loss expenses (17,468) (10,589) (8,098) Insurance expense (law 20,027) (802) (622) (1,205) Provision expense for recovered leased assets (3,105) (4,170) (4,835) Expenses loss on sale of assets (9,386) — — Banking expenses (1,932) (2,450) (3,482) Fines and penalties (2,454) (13,110) (2,025) Loss on damaged assets (696) (2,311) (2,026) Other expenses (4,819) (903) (10,550) Subtotals (41,317) (48,768) (46,558) Totals (61,549) (68,199) (62,330) (*) For the year ended December 31, 2019, the Bank presents credit card loyalty benefits expenses amounting to MCh$7,515 in the Consolidated Statements of Income under Fee and commission expense.

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Loan Granted to Related Parties	As of December 31, 2019 and 2018, the loans granted to related persons are detailed below : As of December 31, 2019 As of December 31, 2018 Productive Investment Productive Investment companies companies Individuals companies companies Individuals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loans and accounts receivable from customers Commercial loans 109,840 11,910 5,054 170,873 64,073 3,960 Mortgage loans — — 29,419 — — 21,154 Consumer loans — — 8,987 — — 5,961 Gross loans and accounts receivable from customers 109,840 11,910 43,460 170,873 64,073 31,075 Allowance for loan losses (1,705) (134) (283) (2,550) (70) (63) Loans and receivables to customers, net 108,135 11,776 43,177 168,323 64,003 31,012
Schedule of Other Transactions with Related Parties	For the years ended December 31, 2019, 2018 and 2017, the Bank entered into the following transactions with related parties for amounts are detailed below: As of December 31, 2019 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Adexus S.A. Data transmission services — — 567 Bcycle Latam SPA Administrative consulting — — 1,518 CAI Gestion Inmobiliaria S.A. Department stores — — 3 Combanc S.A. Data transmission services — — 366 Comder Contraparte Central S.A Banking services — — 910 Compañía Chilena de Televisión S.A. Tv broadcasting services — — 47 Corp Group Holding Inversiones Limitada Advisory services — — 382 Corp Imagen y diseños S.A. Marketing — — 101 Corp Research S.A. Advisory services — — 474 Hotel Corporation of Chile S.A. Hotel, events — — 39 Inmobiliaria Edificio Corpgroup S.A. Office lease and building fees (*) (15,625) — 1,994 Inmobiliaria Gabriela S.A Other services — — 121 Inversiones Corp Group Interhold Ltda. Administrative consulting — — 2,537 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 46 248 Itaú Chile Inv. Serv. y Administración S.A. Leases (*) (441) — 220 Itaú Unibanco Business management reimbursement 349 2,051 — Operadora de Tarjeta de Crédito Nexus S.A. Credit card management — — 3,037 Pulso Editorial S.A. Publishing services — — 23 Redbanc S.A. ATM management — — 3,388 SMU S.A., Rendic Hnos. S.A. Lease of ATM (Note 17) 3,379 — 2,319 Transbank S.A. Credit card management — — 14,208 (*) As of 2019, due to the adoption of IFRS 16, leases are recognized as a financial obligation and a right-of-use asset. See Note 1 letter g). For disclosure purposes we have included the unpaid balance of the liability and the interest expense. These transactions were carried out at normal market prices prevailing at the day of the transactions. Note 34 - Related Party Transactions, continued As of December 31, 2018 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Adexus S.A. Data transmission services — — 254 Bcycle Latam SPA Administrative consulting — — 4,048 Bolsa de Comercio de Santiago Other services — — 204 CAI Gestion Inmobiliaria S.A. Department stores — — 103 Combanc S.A. Data transmission services — — 350 Comder Contraparte Central S.A Banking services — — 902 Corp Group Holding Inversiones Limitada Advisory services — — 408 Corp Imagen y diseños S.A. Marketing — — 99 Corp Research S.A. Advisory services — — 463 Everis Chile S.A. Advisory services — — 906 Hotel Corporation of Chile S.A. Hotel, events — — 94 Inmobiliaria Edificio Corpgroup S.A. Office lease and building fees — — 4,693 Instituto de Estudios Bancarios Guillermo Subercaseaux Education services — — 121 Inversiones Corp Group Interhold Ltda. Administrative consulting — — 2,476 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 93 706 Itaú Chile Inv. Serv. y Administración S.A. Leases — 204 141 Operadora de Tarjeta de Crédito Nexus S.A. Credit card management — — 2,909 Pulso Editorial S.A Publishing services — — 471 Redbanc S.A. ATM management — — 3,002 SMU S.A., Rendic Hnos. S.A. Lease of ATM (Note 17) 5,698 — 2,262 Transbank S.A. Credit card management — — 15,469 VIP Asesorias y Servicios Integrales Ltda. Advisory services — — 129 As of December 31, 2017 Balances receivable Effect on income (loss) Name or Corporate Name Description (payable) Income Expense MCh$ MCh$ MCh$ Bcycle Latam SPA Other services — — 552 CAI Gestion Inmobiliaria S.A. Commercial home (Department stores) — — 115 Combanc S.A. Data transmission services — — 378 Comder Contraparte Central S.A Banking services — — 1,067 Corp Group Holding Inversiones Limitada Advisory services — — 398 Corp Imagen y diseños S.A. Other services — — 196 Corp Research S.A. Management advisory services — — 453 Everis Chile S.A. Advisory services — — 607 Hotel Corporation of Chile S.A. Accommodation, events — — 265 Inmobiliaria Edificio Corpgroup S.A. Corporate office rent and building cost — — 4,725 Instituto de Estudios Bancarios Guillermo Subercaseaux Education services — — 143 Inversiones Corp Group Interhold Ltda. Management advisory services — — 3,097 Itaú Chile Cía. de Seguros de Vida S.A. Life insurance — 7,819 948 Itaú Chile Inv. Serv. y Administración S.A. Leases — — 650 Operadora de Tarjeta de Crédito Nexus S.A. Credit Card processing — — 3,836 Promoservice S.A. Promotion services — — 267 Pulso Editorial S.A Publishing services — — 509 Redbanc S.A. ATM management — — 3,355 SMU S.A., Rendic Hnos. S.A. Prepaid rent for space for ATMs 7,960 — 2,221 Transbank S.A. Credit card management — — 14,586 VIP Asesorias y Servicios Integrales Ltda. Advisory services — — 415
Schedule of Donations	Note 34 - Related Party Transactions, continued a) Donations For the years ended December 31, Name or corporate name Description 2019 2018 2017 MCh$ MCh$ MCh$ Fundación Corpgroup Centro Cultural Donations 1,325 1,225 1,302 Fundación Descúbreme Donations 194 200 Fundación Itaú Donations 157 167 Fundación de Inclusión Social Aprendamos Donations — — 5
Schedule of Other Assets and Liabilities with Related Parties	As of December 31, 2019 2018 MCh$ MCh$ ASSETS 28,474 26,854 Derivative financial instruments 27,458 25,708 Other assets 1,016 1,146 LIABILITIES 420,273 188,057 Derivative financial instruments 1,565 860 Current accounts and demand deposits 34,416 30,466 Time deposits and saving accounts 354,794 145,995 Other liabilities 29,498 10,736
Schedule of Results of Transactions with Related Parties	For the years ended December 31, 2019 2018 2017 Type of recognized income or expense Income Expenses Income Expenses Income Expenses MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income and interest expenses and readjustments 11,269 7,328 3,748 2,970 10,146 4,902 Income and expenses for commissions and services 3,232 — 829 — 5,227 — Profit and loss from trading 2,585 888 1,146 501 2,333 1,534 Operational support expenses 901 — 1,075 — 537 99 Other income and expenses 207 327 84 222 216 390 Totals 18,194 8,543 6,882 3,693 18,459 6,925
Schedule of Payments to Board of Directors and Key Management Personnel	Compensation received by key personnel of Management correspond to the following categories: As of December 31, 2019 2018 2017 MCh$ MCh$ MCh$ Short-term employee benefits 31,364 31,892 27,759 Post-employment benefits — — — Other long-term benefits — — — Compensation for termination of contract 799 1,337 3,471 Totals 32,163 33,229 31,230
Schedule of Conformation of Key Personnel	Compensation received by directors and key management personnel is categorized as follows: Number of executives As of December 31, Position 2019 2018 Board Member 14 21 Chief Executive Officer 10 16 Corporate Director 39 50 Area Manager 161 194 Manager 143 163
Schedule of Transactions with Key Personnel	The following transactions with key personnel have been performed during the years ended December 31, 2019 and As of December 31, 2019 2018 MCh$ MCh$ Credits cards 89 Consumer loans 339 Commercial loans 536 Mortgage loans 2,325

Fair Value of Financial Asset_2

Fair Value of Financial Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Determination of the Fair Value of Financial Instruments	Determination of the fair value as of December 31, 2019 and 2018 As of December 31, 2019 Estimated fair value Book value Recurring Non-recurring (*) MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 — 1,009,681 Cash items in process of collection 231,305 — 231,305 Financial instruments at fair value through profit or loss 183,702 183,702 — Financial instruments at fair value through other comprehensive income 3,598,890 3,598,890 — Loans and accounts receivable at amortized cost 22,254,697 — 23,313,453 Financial instruments at amortized cost 115,658 — 114,175 Investments under resale agreements 75,975 — 75,975 Financial derivative contracts 3,154,957 3,154,957 — Interbank loans, net 56,396 — 56,396 Totals 30,681,261 6,937,549 24,800,985 LIABILITIES Deposits and other demand liabilities 4,873,448 — 4,873,448 Cash in process of being cleared 164,573 — 164,573 Obligations under repurchase agreements 559,457 — 559,457 Time deposits and other time liabilities 11,620,187 — 11,692,076 Financial derivative contracts 2,938,034 2,938,034 — Interbank borrowings 2,646,756 — 2,646,176 Debt instruments issued 6,408,356 — 7,244,551 Lease contract liabilities 172,924 — 175,263 Other financial liabilities 12,966 — 12,966 Totals 29,396,701 2,938,034 27,368,510 (*) Non-recurring items correspond to those line items that are carried at cost, but their corresponding fair value has been estimated for disclosure purposes only. Note 35 - Fair Value of Financial Assets and Liabilities, continued As of December 31, 2018 Estimated fair value Book value Recurring Non-recurring MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 987,680 — 987,680 Cash items in process of collection 318,658 — 318,658 Financial instruments at fair value through profit or loss 96,943 96,943 — Financial instruments at fair value through other comprehensive income 2,657,154 2,657,154 — Loans and accounts receivable at amortized cost 20,714,370 — 20,827,852 Financial instruments at amortized cost 198,923 — 199,561 Investments under resale agreements 109,467 — 109,467 Financial derivative contracts 1,368,957 1,368,957 — Interbank loans, net 341,244 — 341,244 Totals 26,793,396 4,123,054 22,784,462 LIABILITIES Deposits and other demand liabilities 4,300,475 — 4,300,475 Cash in process of being cleared 247,165 — 247,165 Obligations under repurchase agreements 1,015,614 — 1,015,614 Time deposits and other time liabilities 10,121,111 — 10,135,722 Financial derivative contracts 1,112,806 1,112,806 — Interbank borrowings 2,327,723 — 2,335,509 Debt instruments issued 6,010,124 — 6,311,527 Other financial liabilities 12,400 — 12,400 Totals 25,147,418 1,112,806 24,358,412
Schedule of Fair Value Measurements of Assets and Liabilities Only for Disclosure Purposes (Non-recurring)	Fair Value Measurements of assets and liabilities only for disclosure purposes (non-recurring) : As of December 31, Non-recurring fair value measurement 2019 2018 MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 987,680 Cash items in process of collection 231,305 318,658 Loans and accounts receivable at amortized cost 23,313,453 20,827,852 Investments under resale agreements 75,975 109,467 Interbank loans, net 56,396 341,244 Financial instruments at amortized cost 114,175 199,561 Totals 24,800,985 22,784,462 LIABILITIES Deposits and other demand liabilities 4,873,448 4,300,475 Cash in process of being cleared 164,573 247,165 Obligations under repurchase agreements 559,457 1,015,614 Time deposits and other time liabilities 11,692,076 10,135,722 Interbank borrowings 2,646,176 2,335,509 Debt issued 7,244,551 6,311,527 Lease contract liabilities 175,263 — Other financial obligations 12,966 12,400 Totals 27,368,510 24,358,412
Schedule of Fair Value Measurement of Financial Assets and Liabilities (Recurring)	Fair Value measurement of financial assets and liabilities (recurring) -: As of December 31, Fair value measurement of recurring items 2019 2018 MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 96,943 Central Bank of Chile and Government securities 80,898 36,608 Other securities issued in Chile 23,123 4,017 Foreign government and Central Bank instruments 67,088 23,276 Other instruments issued abroad 4,390 19,505 Investments in mutual funds 5,903 3,532 Other investments at FVTPL 2,300 10,005 Financial instruments at fair value through other comprehensive income 3,598,890 2,657,154 Central Bank of Chile and Government securities 2,174,278 1,352,084 Other securities issued in Chile 536,576 196,439 Foreign government and Central Bank instruments 165,927 769,693 Other instruments issued abroad 716,423 332,560 Other investments at FVOCI 5,686 6,378 Financial derivative contracts 3,154,957 1,368,957 Forwards 454,300 342,993 Swaps 2,696,635 1,021,701 Call options 3,805 4,217 Put options 217 46 Others — — Total 6,937,549 4,123,054 LIABILITIES Financial derivative contracts 2,938,034 1,112,806 Forwards 504,275 322,241 Swaps 2,431,436 788,133 Call options 1,758 1,493 Put options 565 939 Total 2,938,034 1,112,806
Schedule of Financial Derivative Instruments	These adjustments are recorded periodically in the financial statements. As of December 2018, 2017 and 2016, the portfolio of derivative contracts in both Chile and Colombia is detailed as follows: As of December 31, 2019 2018 2017 CVA DVA CVA DVA CVA DVA MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Derivatives held for hedging (2) 1 — — (2) 815 Fair value hedge — — — — (11) 783 Currency forwards — — — — — — Currency swaps — — — — (5) 222 Interest rate swaps — — — — (6) 561 Cash flow hedge (2) 1 — — 1 54 Currency forwards (2) 1 — — (1) (13) Currency swaps — — — — — 27 Interest rate swaps — — — — 2 40 Hedge of net investments in a foreign operation — — — — 8 (22) Currency forwards — — — — 8 (22) Currency swaps — — — — — — Interest rate swaps — — — — — — Derivatives held for trading (28,172) 446 (37,821) 340 (53,396) 554 Currency forwards (341) 123 (127) 65 (258) (724) Currency swaps (4,642) 295 (31,167) 127 (42,829) 367 Interest rate swaps (23,189) 28 (6,527) 148 (10,244) 911 Call currency options — — — — — — Put currency options — — — — (65) — Total financial derivative contracts (28,174) 447 (37,821) 340 (53,398) 1,369
Schedule of Impacts on the Portfolio of a Recalibration	The table below summarizes the impacts on the portfolio of a recalibration of the models based on a stress scenario, recalibrating parameters with the shock incorporated. As of December 31, 2019 As of December 31, 2018 Forward Forward Americano Basis TAB Basis TAB Americano Basis TAB Basis TAB Impact calibration USD-CLP CLP CLF USD-CLP CLP CLF MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Volatility exchange rate USD-CLP — — — — — — TAB 30 — 98 — — 116 — TAB 90 — 4 — — 26 — TAB 180 — 39 18 — 50 21 TAB 360 — — 4 — 3 5 Totals — 141 22 — 195 26
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table classifies assets and liabilities measured at fair value on a recurring basis, in accordance with the fair value hierarchy established in IFRS 13, as of December 31, 2019 and 2018 : As of December 31, 2019 Market value of the Other observable Non-observable Measurement at fair value of instruments asset for identified assets significant inputs significant inputs on a recurring basis using Fair value (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 177,009 6,693 — Central Bank of Chile and Government securities 80,898 80,898 — — Other securities issued locally 23,123 23,120 3 — Foreign government and Central Bank instruments 67,088 67,088 — — Other securities issued abroad 4,390 — 4,390 — Investments in mutual funds 5,903 5,903 — — Other investments at FVTPL 2,300 — 2,300 — Financial instruments at fair value through other comprehensive income 3,598,890 3,009,607 589,283 — Central Bank of Chile and Government securities 2,174,278 2,174,278 — — Other securities issued locally 536,576 — 536,576 — Foreign government and Central Bank instruments 165,927 165,927 — — Other securities issued abroad 716,423 669,402 47,021 — Other investments at FVOCI 5,686 — 5,686 — Financial derivative contracts 3,154,957 — 3,127,525 27,432 Forwards 454,299 — 449,239 5,060 Swaps 2,696,636 — 2,674,264 22,372 Call options 3,805 — 3,805 — Put options 217 — 217 — Totals 6,937,549 3,186,616 3,723,501 27,432 LIABILITIES Financial derivative contracts 2,938,034 — 2,936,915 1,119 Forwards 504,275 — Swaps 2,431,436 — Call options 1,758 — — Put options 565 — — Totals 2,938,034 — 2,936,915 1,119 Note 35 - Fair Value of Financial Assets and Liabilities, continued As of December 31, 2018 Market value of the Other observable Non-observable Measurement at fair value of instruments asset for identified assets significant inputs significant inputs on a recurring basis using Fair value (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 96,943 67,430 29,513 — Central Bank of Chile and Government securities 36,608 36,608 — — Other securities issued locally 4,017 4,014 3 — Foreign government and Central Bank instruments 23,276 23,276 — — Other securities issued abroad 19,505 — 19,505 — Investments in mutual funds 3,532 3,532 — — Other investments at FVTPL 10,005 — 10,005 — Financial instruments at fair value through other comprehensive income 2,657,154 2,458,410 198,744 — Central Bank of Chile and Government securities 1,352,084 1,352,084 — — Other securities issued locally 196,439 5,979 190,460 — Foreign government and Central Bank instruments 769,693 769,693 — — Other securities issued abroad 332,560 330,654 1,906 — Other investments at FVOCI 6,378 — 6,378 — Financial derivative contracts 1,368,957 — 1,341,801 27,156 Forwards 342,993 — 342,375 618 Swaps 1,021,701 — 995,163 26,538 Call options 4,217 — 4,217 — Put options 46 — 46 — Totals 4,123,054 2,525,840 1,570,058 27,156 LIABILITIES Financial derivative contracts 1,112,806 — 1,112,237 569 Forwards 322,241 — 322,192 49 Swaps 788,133 — 787,613 520 Call options 1,493 — 1,493 — Put options 939 — 939 — Totals 1,112,806 — 1,112,237 569
Schedule of Reconciliation by Fair Value Heirarchy	As of December 31, 2019 and 2018 no transfers were observed between Level 1 and Level 2, as shown below As of December 31, Measurement at fair value of instruments 2019 that are valued recurrently Fair value Level 1 to 2 Level 2 to 1 MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 183,702 — — Financial instruments at fair value through other comprehensive income 3,598,890 — — Financial derivative contracts 3,154,957 — — Totals 6,937,549 — — LIABILITIES Financial derivative contracts 2,938,034 — — Totals 2,938,034 — — As of December 31, Measurement at fair value of instruments 2018 that are valued recurrently Fair value Level 1 to 2 Level 2 to 1 MCh$ MCh$ MCh$ ASSETS Financial instruments at fair value through profit or loss 96,943 — — Financial instruments at fair value through other comprehensive income 2,657,154 — — Financial derivative contracts 1,368,957 — — Totals 4,123,054 — — LIABILITIES Financial derivative contracts 1,112,806 — — Totals 1,112,806 — —
Schedule of Reconciliation of Assets and Liabilities	The following table reconciles assets and liabilities measured at fair value on a recurring basis as of December 31, 2019 and 2018. As of December 31, 2019 Gain (loss) Gain (loss) Purchases, Transfers Opening recognized in recognized in sales and from level 1 Ending Level 3 reconciliation balance profit or loss equity agreements or level 2 balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS Financial derivative contracts 27,156 17,328 — (17,052) — 27,432 Forwards 618 12,398 — (7,956) — 5,060 Swaps 26,538 4,930 — (9,096) — 22,372 Call options — — — — — — Put options — — — — — — Totals 27,156 17,328 — (17,052) — 27,432 LIABILITIES Financial derivative contracts 569 3,208 — (2,658) — 1,119 Forwards 49 2,565 — (2,433) — 181 Swaps 520 643 — (225) — 938 Call options — — — — — — Put options — — — — — — Totals 569 3,208 — (2,658) — 1,119 As of December 31, 2018 Gain (loss) Gain (loss) Purchases, Transfers Opening recognized in recognized in sales and from level 1 Ending Level 3 reconciliation balance profit or loss equity agreements or level 2 balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS Financial derivative contracts 30,528 5,863 — (9,235) — 27,156 Forwards 53 716 — (151) — 618 Swaps 30,475 5,147 — (9,084) — 26,538 Call options — — — — — — Put options — — — — — — Totals 30,528 5,863 — (9,235) — 27,156 LIABILITIES Financial derivative contracts 605 1,223 — (1,259) — 569 Forwards — 831 — (782) — 49 Swaps 605 392 — (477) — 520 Call options — — — — — — Put options — — — — — — Totals 605 1,223 — (1,259) — 569
Schedule of Classified Assets and Liabilities Measured at Fair Value on a Non-recurring Basis	The following table classifies assets and liabilities measured at fair value on a non-recurring basis, in accordance with the fair value hierarchy as of December 31, 2019 and 2018. As of December 31, 2019 Market value of the Other observable Non-observable Estimated fair asset for identified significant inputs significant inputs Measurement at fair value of items on a non-recurring basis value assets (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 1,009,681 1,009,681 — — Cash items in process of collection 231,305 231,305 — — Loans and accounts receivable at amortized cost 23,313,453 — — 23,313,453 Financial instruments at amortized cost 114,175 114,175 — — Investments under resale agreements 75,975 75,975 — — Interbank loans, net 56,396 56,396 191 191 Totals 24,800,985 1,487,532 191 23,313,644 LIABILITIES Deposits and other demand liabilities 4,873,448 4,873,448 — — Cash in process of being cleared 164,573 164,573 — — Obligations under repurchase agreements 559,457 559,457 — — Time deposits and other time liabilities 11,692,076 — 11,692,076 — Interbank borrowings 2,646,176 2,646,176 — — Debt instruments issued 7,244,551 — 7,244,551 — Lease contract liabilities 175,263 — 175,263 — Other financial liabilities 12,966 12,966 — — Totals 27,368,510 8,256,620 19,111,890 — As of December 31, 2018 Market value of the Other observable Non-observable Estimated fair asset for identified significant inputs significant inputs Measurement at fair value of items on a non-recurring basis value assets (Level 1) (Level 2) (Level 3) MCh$ MCh$ MCh$ MCh$ ASSETS Cash and deposits in banks 987,680 987,680 — — Cash items in process of collection 318,658 318,658 — — Investments under resale agreements 109,467 109,467 — — Interbank loans, net 199,561 — 199,561 — Loans and accounts receivable from customers, net 20,827,852 — — 20,827,852 Held to maturity investments 341,244 341,244 — — Totals 22,784,462 1,757,049 199,561 20,827,852 LIABILITIES Deposits and other demand liabilities 4,300,475 4,300,475 — — Cash in process of being cleared 247,165 247,165 — — Obligations under repurchase agreements 1,015,614 1,015,614 — — Time deposits and other time liabilities 10,135,722 — 10,135,722 — Borrowings from financial institutions 2,335,509 2,335,509 — — Debt instruments issued 6,311,527 — 6,311,527 — Other financial obligations 12,400 12,400 — — Totals 24,358,412 7,911,163 16,447,249 —

Risk management (Tables)

Risk management (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Details of Significant Increase in Credit Risk	Criteria used for Chile % of absolute increase PD ranges per in lifetime Type of portfolio Debtor category debtor category PD Stages Days of arrears to the end of the month A1 A2 0.04 – 0.25% 0.13% A3 Stage 1 Up to 29 days A4 2.00% 1.62% A5 (*) A6 4.75 – 10% 3.52% B1 Stage 2 From 30 to 89 days Corporate B2 B3 15 -45% 23.05% B4 C1 C2 C3 C4 100% 100% Stage 3 90 days or more C5 C6 (*) Loans originated in A5 are considered Stage 1 at inception. Loans that were originated in a higher category and subsequently downgraded to A5 are considered Stage 2. Note 36 - Risk management, continued Probability of default (PD) and Type of portfolio Stages Days of arrears to the end of the month qualitative considerations Stage 1 Up to 29 days Difference between Referential Life Time PD and PD Life Time at origination < 20% Group Stage 2 From 30 to 89 days Difference between Referential Life Time PD and PD Life Time at origination >= 20% Stage 3 90 days or more Restructured loans with 60 days in arrears before restructuring The quantitative criteria is used to identify where an exposure has increased in credit risk and it is applied based on whether an increase in the lifetime PD since the recognition date exceeds the threshold set in absolute and relative terms. The following formulas are used to determine such thresholds: Relative comparison formula Threshold = Lifetime PD (at reporting date) - 1 Lifetime PD (at origination) Absolute comparison formula Threshold = Lifetime PD (at reporting date) – Lifetime PD (at origination) Note 36 - Risk management, continued Criteria used for Colombia % of absolute increase in % of relative increase Qualitative lifetime PD in lifetime PD indicators assessed Corporate portfolio Without information 34.39 % 86.90 % Small company 22.26 % 1,314.07 % Small company 33.91 % 1,326.89 % Medium company 22.53 % 64.23 % ● Debt restructuring Medium company 25.67 % 1,203.61 % ● Increase in credit risk of other financial instruments Large company 10.28 % 99.15 % Low default 0.46 % 0.48 % Low default (Government and Financial) — % 324.00 % Group portfolio Leasing 33.23 % 82.04 % Payroll deductible loan 2.79 % 77.14 % Revolving line of credit 35.22 % 85.65 % Overdraft limit 0.70 % 241.11 % Credit card 29.44 % 175.32 % Mortgage loan 2.55 % 151.19 % Personal debt restructuring 44.04 % 101.64 % ● Increase in credit risk of other financial instruments Other loans 26.53 % 174.02 %
Summary of Principal Macroeconomic Indicators Included in Economic Scenarios	The table below summarizes the principal macroeconomic indicators included in the economic scenarios used as of December 31, 2019 until December 31, 2023 in the countries where the Bank and its subsidiaries operate and therefore are the countries that have a material impact on ECLs. Criteria for Chile 2019 2020 2021 Indicators Portfolio Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Unemployment rate Base scenario % Range of upside scenarios % Range of downside scenarios % Consumer's price index (IPC) Base scenario 104.01 103.56 103.76 103.31 102.69 102.81 102.98 103.01 103.00 103.00 103.00 103.00 Range of upside scenarios 105.15 105.32 105.11 104.50 103.54 103.53 103.65 103.60 103.55 103.50 103.45 103.40 Range of downside scenarios 103.27 102.90 103.06 102.70 102.50 102.61 102.77 102.80 102.80 102.80 102.80 102.80 Interbank interest rate Base scenario % Range of upside scenarios % Range of downside scenarios % Cooper Base scenario 2.68 2.68 2.68 2.68 2.69 2.69 2.70 2.71 2.72 2.73 2.73 2.74 Range of upside scenarios 2.54 2.54 2.54 2.54 2.55 2.56 2.57 2.57 2.58 2.59 2.60 2.60 Range of downside scenarios 2.94 2.94 2.94 2.94 2.95 2.96 2.97 2.98 2.99 3.00 3.01 3.02 Note 36 - Risk management, continued Criteria for Colombia As of December 31, 2020 2021 2022 GDP growth Base scenario 3.11 2.66 2.63 Range of upside scenarios 4.33 4.20 4.25 Range of downside scenarios 3.72 3.43 3.44 Unemployment rates Base scenario 9.84 9.84 9.84 Range of upside scenarios 9.50 9.40 9.34 Range of downside scenarios 10.21 10.29 10.35 Benchmark interest rates Base scenario 4.75 4.75 4.75 Range of upside scenarios 5.75 5.75 5.75 Range of downside scenarios 3.75 3.75 3.75 currency exchange rate Base scenario 3,180 3,180 3,150 Range of upside scenarios 3,104 3,071 3,025 Range of downside scenarios 3,256 3,289 3,335 Consumer’s Price Index Base scenario 3.40 3.00 3.00 Range of upside scenarios 3.95 3.91 4.27 Range of downside scenarios 2.74 1.86 1.38
Summary of ECL Coverage of Loans and Accounts Receivable at Amortized Cost Subject to Significant Measurement Uncertainty	Set out below are the changes to ECL as of December 31, 2019 that would result from reasonably possible changes in these parameters from the actual assumptions used in the Bank’s economic variable assumptions as set forth in the tables above for Base scenarios, upside scenarios, and downside scenarios. ECL coverage of loans and accounts receivable at amortized cost subject to significant measurement uncertainty as of December 31, 2019 Chile Colombia MCh$ MCh$ Reported ECL 606,828 273,289 Loans and accounts receivable at amortized cost 18,245,234 4,889,580 Reported Coverage (Reported ECL/ loans and accounts receivable at amortized cost) % Consensus upside scenario (Upside scenario for ECL/ loans and accounts receivable at amortized cost) % Consensus central scenario (Base scenario for ECL/ loans and accounts receivable at amortized cost) % Consensus downside scenario (Downside scenario for ECL/ loans and accounts receivable at amortized cost) %
Schedule of Credit Quality by Financial Asset Class	A detail by credit quality, which includes loans and accounts receivable from customers and interbank loans as of December 31, 2019 and 2018 is summarized as follows: As of December 31, 2019 Corporate Stage 1 Stage 2 Stage 3 Totals corporate Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % A1 101,936 — — 101,936 14 — — 14 A2 600,732 — — 600,732 124 — — 124 A3 3,063,847 — — 3,063,847 1,636 — — 1,636 A4 4,238,157 — — 4,238,157 12,582 — — 12,582 A5 2,723,568 — — 2,723,568 21,246 — — 21,246 A6 — 1,041,531 — 1,041,531 — 25,533 — 25,533 B1 — 364,393 — 364,393 — 11,971 — 11,971 B2 — 154,200 — 154,200 — 12,071 — 12,071 B3 — 73,505 — 73,505 — 11,058 — 11,058 B4 — 413,676 — 413,676 — 96,699 — 96,699 C1 — — 167,177 167,177 — — 2,464 2,464 C2 — — 43,587 43,587 — — 3,213 3,213 C3 — — 80,574 80,574 — — 14,848 14,848 C4 — — 91,831 91,831 — — 27,076 27,076 C5 — — 205,639 205,639 — — 98,523 98,523 C6 — — 144,115 144,115 — — 95,606 95,606 Subtotals corporate 10,728,240 2,047,305 732,923 13,508,468 35,602 157,333 241,730 434,665 As of December 31, 2019 Group Stage 1 Stage 2 Stage 3 Total group Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % Commercial loans 1,737,978 — 214,098 1,952,076 37,434 — 73,100 110,534 Mortgage loans 4,043,765 656,010 176,266 4,876,041 5,680 49,072 23,749 78,501 Consumer loans 2,201,939 482,372 113,918 2,798,229 66,692 113,507 76,218 256,417 Subtotals group 7,983,682 1,138,382 504,282 9,626,346 109,806 162,579 173,067 445,452 Totals portfolio 18,711,922 3,185,687 1,237,205 23,134,814 145,408 319,912 414,797 880,117 Note 36 - Risk management, continued As of December 31, 2018 Corporate Stage 1 Stage 2 Stage 3 Totals corporate Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % A1 115,422 — — 115,422 0.53 % 899 — — 899 0.12 % A2 681,792 — — 681,792 3.12 % 1,477 — — 1,477 0.19 % A3 3,033,770 — — 3,033,770 13.90 % 5,901 — — 5,901 0.77 % A4 4,007,691 — — 4,007,691 18.36 % 37,650 — — 37,650 4.90 % A5 2,727,643 — — 2,727,643 12.50 % 96,956 — — 96,956 12.61 % A6 — 837,283 — 837,283 3.84 % — 14,829 — 14,829 1.93 % B1 — 377,954 — 377,954 1.73 % — 10,116 — 10,116 1.32 % B2 — 104,513 — 104,513 0.48 % — 5,479 — 5,479 0.71 % B3 — 84,197 — 84,197 0.39 % — 8,830 — 8,830 1.15 % B4 — 297,570 — 297,570 1.36 % — 37,422 — 37,422 4.87 % C1 — — 137,216 137,216 0.63 % — — 2,344 2,344 0.30 % C2 — — 79,134 79,134 0.36 % — — 6,758 6,758 0.88 % C3 — — 334,263 334,263 0.16 % — — 7,317 7,317 0.95 % C4 — — 62,242 62,242 0.29 % — — 21,265 21,265 2.77 % C5 — — 63,181 63,181 0.29 % — — 47,576 47,576 6.19 % C6 — — 127,874 127,874 0.59 % — — 84,475 84,475 11.00 % Subtotals corporate 10,566,318 1,701,517 803,910 13,071,745 58.53 % 142,883 76,676 169,735 389,294 50.66 % As of December 31, 2018 Group Stage 1 Stage 2 Stage 3 Total group Percentage Stage 1 Stage 2 Stage 3 Totals allowance Percentage MCh$ MCh$ MCh$ MCh$ % MCh$ MCh$ MCh$ MCh$ % Commercial loans 1,710,659 95,045 131,158 1,936,862 8.87 % 39,864 20,622 35,390 95,876 12.47 % Mortgage loans 3,626,811 659,119 159,897 4,445,827 20.37 % 5,756 37,800 22,561 66,117 8.60 % Consumer loans 2,135,693 444,058 90,012 2,669,763 12.23 % 70,765 84,842 61,689 217,296 28.27 % Subtotals group 7,473,163 1,198,222 381,067 9,052,452 41.47 % 116,385 143,264 119,640 379,289 49.34 % Totals portfolio 18,039,481 2,899,739 1,184,977 21,824,197 100 % 259,268 219,940 289,375 768,583 100 %
Schedule of Analysis of Gross Carrying Amount of Loans and Advances to Customers by Past Due Status under IFRS 9 and IAS 39	The table below provides an analysis of the gross carrying amount of loans and advances to customers by past due: Less than 30 days overdue Between 30 and 89 days overdue More than 90 days overdue Total overdue MCh$ MCh$ MCh$ MCh$ Interbank loans — — — — Loans and accounts receivable from customers Commercial loans 542,648 134,505 490,641 1,167,794 Mortgage loans 166,105 88,072 102,650 356,827 Consumer loans 152,507 73,347 60,373 286,227 Totals 861,260 295,924 653,664 1,810,848 Less than 30 days overdue Between 30 and 89 days overdue More than 90 days overdue Total overdue MCh$ MCh$ MCh$ MCh$ Interbank loans — — — — Loans and accounts receivable from customers Commercial loans 251,596 117,386 314,870 683,852 Mortgage loans 108,783 64,088 91,107 263,978 Consumer loans 69,412 59,616 46,970 175,998 Totals 429,791 241,090 452,947 1,123,828
Schedule of Bank's Maximum Credit Risk Exposure by Financial Asset	Maximum Exposure to Credit Risk The following table shows the Bank’s maximum credit risk exposure by financial asset as of December 31, 2019, 2018, 2017 for different balance sheet items, including derivatives, without deducting real guarantees or other credit enhancements received: Maximum Exposure as of December 31, 2019 Balance sheet asset Off-balance sheet Collateral Notes Gross amounts Allowances Net amounts Gross amounts Allowances Net amounts Cash Non-cash Net exposure MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial instruments at fair value through other comprehensive income 11 3,598,890 — 3,598,890 — — — — — 3,598,890 Loans and accounts receivable at amortized cost 10 23,134,814 880,117 22,254,697 5,895,139 34,271 5,860,868 — 27,344,699 770,866 Commercial loans 15,460,544 545,199 14,915,345 5,895,139 34,271 5,860,868 — 17,686,941 3,089,272 Mortgage loans 4,876,041 78,501 4,797,540 — — — — 7,424,712 (2,627,172) Consumer loans 2,798,229 256,417 2,541,812 — — — — 2,233,046 308,766 Financial instruments at amortized cost 11 115,682 24 115,658 — — — — — 115,658 Investments under resale agreements 7 75,975 — 75,975 — — — — 75,975 — Financial derivative contracts 8 3,154,957 — 3,154,957 — — — 116,654 — 3,038,303 Interbank loans, net 9 56,396 239 56,157 — — — — — 56,157 Other assets 15 — — — — — — — — — Totals 30,136,714 880,380 29,256,334 5,895,139 34,271 5,860,868 116,654 27,420,674 7,579,874 Maximum Exposure as of December 31, 2018 Balance sheet asset Off-balance sheet Collateral Notes Gross amounts Allowances Net amounts Gross amounts Allowances Net amounts Cash Non-cash Net exposure MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial instruments at fair value through other comprehensive income 11 2,657,154 — 2,657,154 — — — — — 2,657,154 Loans and accounts receivable at amortized cost 10 21,482,490 768,120 20,714,370 5,383,914 45,848 5,338,066 — 13,143,140 12,909,296 Commercial loans 14,366,900 484,707 13,882,193 5,383,914 45,848 5,338,066 — 5,527,419 13,692,840 Mortgage loans 4,445,827 66,117 4,379,710 — — — — 7,257,682 (2,877,972) Consumer loans 2,669,763 217,296 2,452,467 — — — — 358,039 2,094,428 Financial instruments at amortized cost 11 198,923 — 198,923 — — — — — 198,923 Investments under resale agreements 7 109,467 — 109,467 — — — — 109,467 — Financial derivative contracts 8 1,368,957 — 1,368,957 — — — 91,223 — 1,277,734 Interbank loans, net 9 341,707 463 341,244 — — — — — 341,244 Other assets 15 467,806 — 467,806 — — — — — 467,806 Totals 26,626,504 768,583 25,857,921 5,383,914 45,848 5,338,066 91,223 13,252,607 17,852,157 Note 36 - Risk management, continued Maximum Exposure as of December 31, Notes 2017 MCh$ Investments under resale agreements 7 28,524 Financial derivative contracts 8 1,248,775 Interbank loans, net 9 70,077 Loans and accounts receivable from customers, net 10 19,764,078 Available for sale instruments 11 2,663,478 Held to maturity investments 11 202,030 Other assets 15 429,025 Totals 24,405,987
Summary for Allowances for Loan Losses According to IFRS 9	A summary for the allowances for loan losses is as follows: As of December 31, 2019 2018 MCh$ MCh$ Loans and accounts receivable at amortized cost 880,117 782,713 Interbank loans, net 239 463 Provisions for contingent loans risk 34,271 20,942 Total allowances 914,627 804,118
Schedule of Concentration of Credit Risk by Industry	The following table displays the concentration of credit risk by industry for financial assets: As of December 31, 2019 2018 Maximum Maximum Maximum Maximum gross net gross net Note exposure exposure (1) % exposure exposure (1) % MCh$ MCh$ MCh$ MCh$ Manufacturing 1,099,739 1,037,275 4.66 % 1,097,211 994,246 4.80 % Mining 551,615 479,190 2.15 % 677,777 675,973 3.26 % Electricity, gas and water 1,125,541 989,433 4.45 % 957,373 769,643 3.72 % Agriculture and livestock 483,943 455,842 2.05 % 346,369 341,018 1.65 % Forestry and wood extraction 53,328 51,864 0.23 % 29,683 24,362 0.12 % Fishing 46,902 45,992 0.21 % 3,475 2,621 0.01 % Transport 559,271 510,333 2.29 % 700,401 602,973 2.91 % Communications 34,926 33,720 0.15 % 86,077 84,135 0.41 % Construction 2,106,829 2,076,668 9.33 % 1,746,626 1,729,426 8.35 % Commerce 2,129,179 2,019,636 9.08 % 1,620,108 1,599,435 7.72 % Services 3,944,571 3,908,000 17.56 % 3,872,060 3,869,613 18.68 % Others 3,324,700 3,307,390 14.86 % 3,229,740 3,188,748 15.39 % Subtotal commercial loans 10 a) 15,460,544 14,915,343 67.02 % 14,366,900 13,882,193 67.02 % Consumer loans 10 a) 2,798,229 2,541,812 11.42 % 2,669,763 2,452,467 11.84 % Mortgage loans 10 a) 4,876,041 4,797,540 21.56 % 4,445,827 4,379,710 21.14 % Totals 23,134,814 22,254,695 100 % 21,482,490 20,714,370 100.00 % (1) Net of allowances
Schedule of Banking Book Positions (Products Valued at Amortized Cost and Available-for-sale Instruments and Derivatives Valued at Fair Value)	The following are the Banking Book items (products valued at amortized cost and FVTOCI / instruments available for sale and derivatives valued at fair value) for the most relevant currencies in which the Bank trades at the end of the year ended December 31, 2019 and 2018: As of December 31, 2019 Between 1 and 3 More than 3 months Between 1 and 3 More than 3 Positions Up to 1 month months and less 1 year years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS 15,718,342 5,631,115 9,384,357 8,943,449 12,031,089 51,708,352 CLP 3,507,091 965,331 2,382,124 1,924,539 1,365,975 10,145,060 CLF 536,885 595,857 1,670,189 2,172,579 6,662,306 11,637,816 USD 2,038,658 911,154 1,892,712 88,532 125,788 5,056,844 COP 9,635,708 3,158,773 3,439,332 4,757,799 3,877,020 24,868,632 LIABILITIES (20,036,030) (5,142,757) (10,375,645) (3,733,426) (7,301,728) (46,589,586) CLP (8,633,088) (2,251,174) (3,200,762) (632,972) (215,000) (14,932,996) CLF (432,799) (47,785) (655,079) (752,948) (5,426,561) (7,315,172) USD (1,305,440) (1,418,654) (3,610,341) (69,784) — (6,404,219) COP (9,664,703) (1,425,144) (2,909,463) (2,277,722) (1,660,167) (17,937,199) Derivatives 1,881,267 (1,765,659) (205,036) (425,285) 540,733 26,020 CLP 988,919 1,140,587 900,023 664,608 (407,679) 3,286,458 CLF (936,785) (814,209) (485,247) (904,781) 910,135 (2,230,887) USD 787,971 524,265 806,558 77,221 15,380 2,211,395 COP 1,041,162 (2,616,302) (1,426,370) (262,333) 22,897 (3,240,946) As of December 31, 2018 Between 1 and 3 More than 3 months Between 1 and 3 More than 3 Positions Up to 1 month months and less 1 year years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ ASSETS 7,361,827 2,732,465 5,510,072 4,787,052 8,314,688 28,706,104 CLP 3,519,009 1,000,478 1,753,132 1,800,011 1,181,157 9,253,787 CLF 466,115 447,398 1,329,598 1,845,604 6,182,033 10,270,748 USD 1,469,457 623,505 1,197,716 126,122 102,349 3,519,149 COP 1,907,246 661,084 1,229,626 1,015,315 849,149 5,662,420 LIABILITIES (14,009,676) (2,685,555) (4,724,403) (2,206,000) (5,849,673) (29,475,307) CLP (8,733,561) (1,463,211) (2,101,205) (560,099) (330,000) (13,188,076) CLF (214,266) (181,744) (190,917) (1,072,879) (5,201,884) (6,861,690) USD (1,319,813) (643,544) (1,750,434) (173,922) — (3,887,713) COP (3,742,036) (397,056) (681,847) (399,100) (317,789) (5,537,828) Derivatives (729,147) 444,096 251,673 (21,576) 784,784 729,830 CLP (209,799) 1,521,695 394,300 209,804 65,913 1,981,913 CLF (366,332) (1,221,035) (469,699) (330,428) 762,022 (1,625,472) USD (50,293) 263,381 452,557 (38,395) (8,123) 619,127 COP (102,723) (119,945) (125,485) 137,443 (35,028) (245,738)
Schedule of Structural Interest Rate Position In Banking Book	The consumption of regulatory limit of market risk, specifically for the Trading Book as of December 31, 2019, 2018 and 2017, is presented below: As of December 31, Limit consumption 2019 2018 2017 Market risk exposure (MRE) 80.10 % 71.80 % 71.30 %
Schedule of Banking Book	The following table details regulatory limit consumption for market risk, considered as the limit to be 100% calculated based on the rules indicated above, specifically for the Banking Book as of December 31, 2019, 2018 and 2017: As of December 31, Limit consumption 2019 2018 2017 Short-term exposure to interest rate risk 48.92 % 51.40 % 45.00 % Long-term exposure to interest rate risk 57.82 % 50.30 % 43.20 %
Schedule of Interest Rate	The table below presents a sensitivity analysis for changes of 0.01% in interest rates by term and type of interest rate, and its corresponding impact on profit and loss (net interest margin) and equity (valuation accounts for financial instruments at FVTOCI). Scenarios for impacts on P&L Scenarios for impacts on FVTOCI Chamber Government Chamber Government Curve Curve Chamber Government Chamber Government Curve Curve Term CLP CLP CLF CLF USD MX CLP CLP CLF CLF USD MX 1 day (35) 52 139 140 (101) 101 (35) 52 (139) 140 101 101 3 months (35) 52 139 140 (101) 101 (35) 52 (139) 140 101 101 6 months (35) 52 139 140 (101) 101 (35) 52 (139) 140 101 101 9 months (35) 57 111 116 (86) 86 (35) 57 (111) 116 86 86 1 year (35) 62 81 89 (70) 70 (35) 62 (81) 89 70 70 2 years (46) 52 86 56 (64) 64 (46) 52 (86) 56 64 64 3 years (47) 48 83 60 (65) 65 (47) 48 (83) 60 65 65 4 years (48) 43 79 64 (66) 66 (48) 43 (79) 64 66 66 5 years (48) 39 75 68 (67) 67 (48) 39 (75) 68 67 67 7 years (45) 43 67 68 (65) 65 (45) 43 (67) 68 65 65 10 years (39) 50 55 68 (63) 63 (39) 50 (55) 68 63 63 20 years (39) 50 42 48 (63) 63 (39) 50 (42) 48 63 63 Interest rate scenarios - Colombia (basis points – 0.01%) The table below presents a sensitivity analysis for changes of 0.01% in interest rates by term and type of interest rate, and its corresponding impact on profit and loss (net interest margin) and equity (valuation accounts for financial instruments at FVTOCI). Scenarios for impacts on P&L Scenarios for impacts on FVTOCI Tenor Government COP Swap IBR Curve USD Government COP Swap IBR Curve USD 1 day (18) 44 (1) (18) 44 (1) 3 months (13) 31 (2) (13) 31 (2) 6 months (8) 37 (6) (8) 37 (6) 9 months (3) 40 (9) (3) 40 (9) 1 year 2 43 (12) 2 43 (12) 2 years 22 48 (19) 22 48 (19) 3 years 42 46 (22) 42 46 (22) 4 years 53 55 (24) 53 55 (24) 5 years 54 63 (26) 54 63 (26) 7 years 56 58 (26) 56 58 (26) 10 years 58 50 (27) 58 50 (27) 20 years 49 23 (29) 49 23 (29) Note 36 - Risk management, continued Scenarios for impacts on accrual book Tenor Government COP Curve USD 1 day 44 28 1 month 31 29 3 months 31 32 6 months 37 40 9 months 40 35 1 year 43 31
Schedule of Exchange Rate	The table below presents a sensitivity analysis for changes in the relevant exchanges rates, and its corresponding impact on profit and loss (net income from financial operations and net foreign exchange gain/loss) and equity (valuation accounts for financial instruments at FVTOCI). Change in scenario impacting Change in scenario impacting Change in scenario impacting Exchange rate P&L FVTOCI accrual book % % % USD – CLP (0.0718) (0.0718) (0.0718) USD - COP (0.0717) (0.0717) (0.0717) Exchange rate scenarios Colombia The table below presents a sensitivity analysis for changes in the relevant exchanges rates, and its corresponding impact on profit and loss (net income from financial operations and exchange differences) and equity (valuation accounts for financial instruments at FVTOCI). Change in scenario Change in scenario Change in scenario impacting Exchange rate impacting P&L impacting FVTOCI accrual book % % % USD - COP (0.0466) (0.0466) (0.0466)
Schedule of Trading Book Positions by Risk Factor	The following table presents the impact of movements or reasonably likely scenarios explained above applied to positions in the Trading Book that affect P&L (net income from financial operations, net foreign exchange gain/losses, and net interest margin as applicable) as of December 31, 2019, 2018 and 2017: As of December 31, Potential impact on P&L 2019 2018 2017 MCh$ MCh$ MCh$ CLP rate risk (4,881) (5,019) (849) Derivatives (4,879) (5,018) (847) Debt instruments (2) (1) (2) CLF rate risk (5,130) (5,942) (7,839) Derivatives (5,130) (5,942) (7,839) Debt instruments — — — COP rate risk (1,200) (29,182) (14,895) Derivatives (1,086) (29,094) (9,909) Debt instruments (114) (88) (4,986) UVR rate risk (108) (375) — Derivatives (102) (364) — Debt instruments (6) (11) — USD rate risk (2,711) (2,810) (2,001) Other currencies rate risk (177) (42) (50) Total rate risk (14,207) (43,370) (25,634) Exchange rate risk (763) 150 (755) Options risk 89 156 66 Total impact (14,881) (43,064) (26,323)
Schedule of Potential Impact on Accrual Book	As of December 31, Potential impact on P&L 2019 2018 2017 MCh$ MCh$ MCh$ CLP rate risk (4,881) (5,019) (849) Derivatives (4,879) (5,018) (847) Debt instruments (2) (1) (2) CLF rate risk (5,130) (5,942) (7,839) Derivatives (5,130) (5,942) (7,839) Debt instruments — — — COP rate risk (1,200) (29,182) (14,895) Derivatives (1,086) (29,094) (9,909) Debt instruments (114) (88) (4,986) UVR rate risk (108) (375) — Derivatives (102) (364) — Debt instruments (6) (11) — USD rate risk (2,711) (2,810) (2,001) Other currencies rate risk (177) (42) (50) Total rate risk (14,207) (43,370) (25,634) Exchange rate risk (763) 150 (755) Options risk 89 156 66 Total impact (14,881) (43,064) (26,323) The following table presents the impact on the net interest margin of movements or reasonably likely scenarios on positions in the Accrual Book for the years ended December 31, 2019, 2018 and 2017: For the years ended December 31, Potential impact on Accrual Book 2019 2018 2017 Interest rate shock sensitivity impact (13,981) (12,359) (9,432)
Schedule of Potential Impact on Equity & Prices	In line with the effects on P&L of positions accounted for at fair value and amortized cost, the changes in market factors because of reasonably possible movements in interest and exchange rates also generate impacts on equity accounts as a result of the potential change in market value of the portfolio of investments at FVTOCI/ available-for-sale instruments and the portfolios of cash flow and net foreign investment hedges, which are presented in the following table: For the years ended December 31, 2019 2018 2017 Potential Impact DV01 Impact of Change in Interest DV01 Impact of Change in DV01 Impact of Change in on FVTOCI (+1 bp) Rate (+1 bp) Interest Rate (+1 bp) Interest Rate US$ MUS$ MCh$ US$ MUS$ MCh$ US$ MUS$ MCh$ CLP (377,765) (31.16) (23,334) (254,636) (11.73) (8,180) (386,979) (37.01) (22,745) CLF (221,758) (49.07) (36,744) (177,471) (26.29) (18,328) (245,812) (47.62) (29,261) COP (49,254) (1.37) (1,023) (189,242) (5.74) (3,988) (225,321) (17.50) (10,766) UVR (142,663) (5.25) (3,981) (29,763) (0.55) (380) — — — USD (2,353) (0.14) (105) (33,769) (2.44) (1,701) (48,791) (2.77) (1,700) Other 888 (0.08) (56) — — — — — — Total interest rate impact (792,905) (87.07) (65,243) (684,881) (46.75) (32,577) (906,903) (105) (64,472) Impact due to changes in prices Exchange rate As of December 31, 2019 As of December 31, 2018 ThUS$ MCh$ ThUS$ MCh$ USD (134.51) (100,719) (3.77) (2,624) COP (146.36) (109,591) (3.72) (2,494) Total risk exchange rate (280.87) (210,310) (7.49) (5,118) Total impact (367.94) (275,553) (7.49) (5,118)
Schedule of Potential Impact On Equity And Impact Of Change In Prices	According to local regulations, as of December 31, 2019 and 2018, the relation between assets and risk weighted assets is as follow: Consolidated assets Risk-weighted assets As of December 31, As of December 31, 2019 2018 2019 2018 MCh$ MCh$ MCh$ MCh$ Assets balance (net of allowances) Cash and deposits in banks 1,009,681 987,680 — — Cash items in process of collection 231,305 318,658 40,916 56,963 Trading securities 181,402 86,938 21,755 27,658 Investments under resale agreements 75,975 109,467 57,622 106,916 Financial derivative contract (*) 1,674,743 1,315,165 1,215,171 1,040,274 Interbank loans 56,205 341,244 56,205 95,612 Loans and accounts receivable from customers 22,373,638 20,833,935 20,112,889 18,808,886 Available for sale investments 3,593,204 2,650,776 387,692 551,593 Held to maturity investments 115,682 198,910 52,527 198,910 Investments in companies 14,938 10,555 14,938 10,555 Intangible 1,617,745 1,613,807 423,414 435,572 Fixed assets 57,962 95,564 57,962 95,564 Right-of-use asset under lease agreements 204,559 — 204,559 — Current taxes 85,516 123,129 8,552 12,313 Deferred taxes 184,167 154,599 18,417 15,460 Other assets 783,447 561,435 698,801 505,495 Off-balance sheet assets Contingent loans 2,647,938 2,333,398 1,588,763 1,400,038 Totals 34,908,107 31,735,260 24,960,183 23,361,809 (*) Items presented at their Equivalent Credit Risk value, in accordance with the provisions of Chapter 12‑1 “Equity for Legal and Regulatory Effects” of the RAN, issued by the Commission for the Financial Market (former SBIF).
Schedule of Basic and Regulatory Capital	Amount Ratio As of December 31, As of December 31, 2019 2018 2019 2018 MCh$ MCh$ % % Basic capital 3,346,102 3,324,531 (a) 9.59 10.46 (c) Effective equity 3,280,569 3,415,845 (b) 13.14 14.62 (d) (a) Basic Capital Corresponds to the net amount that must be shown in the Consolidated Financial Statements filed with the CMF under the line item “Equity attributable to equity holders of the Bank” as indicated in the Compendium of Accounting Standards. (b) Based on the consolidated financial statements filed with CMF, the effective net equity of a bank is the sum of (i) a bank’s basic capital, (ii) subordinated bonds issued by a bank valued at their placement price up to 50% of its net capital base; provided that the value of the bonds shall decrease 20% for each year that lapses during the period commencing six years prior to their maturity and (iii) voluntary loan loss allowances in an amount up to 1.25% of a bank’s risk-weighted assets (if a bank has goodwill, this value would be required to be deducted from the calculation of the effective net equity). The calculation of the effective net equity does not include the capital contributions made to subsidiaries of a bank and is made on a consolidated basis rather than on an unconsolidated basis. (c) Consolidated basic capital ratio corresponding to basic capital divided by total assets for capital purposes (includes items outside the Consolidated Financial Statements). Consolidated solvency ratio corresponds to the ratio of effective equity to weighted assets.

Maturity of assets and liabil_2

Maturity of assets and liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule of Maturity of Financial Assets and Liabilities	The main assets grouped by maturity, including interest accrued as of December 31, 2019 and 2018, are detailed as follows: As of December 31, 2019 Between Between 1 month Between Between 3 years to 3 3 month 1 year to to 6 Over 6 Up to 1 month months to 1 year 3 years years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Financial instruments at fair value through profit or loss 20,465 54,382 39,730 39,822 26,703 2,600 183,702 Financial instruments at fair value through other comprehensive income 258,843 151,014 609,862 1,515,340 896,383 167,448 3,598,890 Loans and accounts receivable from customers at amortized cost (**) 1,641,670 2,723,589 2,796,116 2,576,345 3,778,435 9,618,659 23,134,814 Commercial loans 1,443,029 2,209,624 2,693,582 1,962,306 2,516,050 4,635,953 15,460,544 Mortgages loans 3,040 550 2,760 22,657 115,878 4,731,156 4,876,041 Consumer loans 195,601 513,415 99,774 591,382 1,146,507 251,550 2,798,229 Financial instruments at amortized cost 29,026 7,543 78,138 951 — — 115,658 Investments under resale agreements 75,975 — — — — — 75,975 Financial derivative contracts 151,952 160,523 306,284 602,190 662,530 1,271,478 3,154,957 Interbank loans (*) 55,881 — 945 — — — 56,826 Liabilities Investments under resale agreements 559,457 — — — — — 559,457 Deposits and other demand liabilities 3,946,542 2,432,029 3,913,833 827,802 128,756 371,225 11,620,187 Financial derivative contracts 235,652 145,905 283,404 580,829 703,285 988,959 2,938,034 Interbank borrowings 90,251 246,214 1,781,437 406,539 96,281 26,034 2,646,756 Lease obligations 1,177 76,333 52,074 14,561 20,734 8,045 172,924 Debt instruments issued 30,419 378 620,710 959,369 1,375,640 3,421,840 6,408,356 (*) Interbank loans are presented gross. The amount of allowances corresponds to MCh$239. (**) Loans and accounts receivable from customers at amortized cost are presented gross. Allowances by loan type are detailed as follows: Commercial MCh$545,119; Mortgage MCh$78,501; and Consumer MCh$256,417. Note 37 - Maturity of assets and liabilities, continued As of December 31, 2018 Between Between 1 month Between Between 3 years to 3 3 month 1 year to to 6 Over 6 Up to 1 month months to 1 year 3 years years years Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Financial instruments at fair value through profit or loss 46,266 470 19,002 22,027 4,573 4,605 96,943 Financial instruments at fair value through other comprehensive income 151,521 103,048 582,899 1,314,188 330,485 175,013 2,657,154 Loans and accounts receivable from customers at amortized cost (**) 1,595,651 2,343,263 2,115,285 2,322,459 3,464,140 9,641,692 21,482,490 Commercial loans 1,391,707 1,876,174 2,023,542 1,734,720 2,238,373 5,102,384 14,366,900 Mortgages loans 2,544 1,021 3,876 18,192 103,965 4,316,229 4,445,827 Consumer loans 201,400 466,068 87,867 569,547 1,121,802 223,079 2,669,763 Financial instruments at amortized cost 27,012 18,238 153,673 — — — 198,923 Investments under resale agreements 109,467 — — — — — 109,467 Financial derivative contracts 120,361 102,992 178,826 263,595 279,427 423,756 1,368,957 Interbank loans (*) 65,398 16,685 17,437 242,187 — — 341,707 Liabilities Investments under resale agreements 1,015,614 — — — — — 1,015,614 Deposits and other demand liabilities 3,624,335 2,311,111 2,910,851 762,998 102,155 409,661 10,121,111 Financial derivative contracts 128,367 95,019 161,214 200,052 248,765 279,389 1,112,806 Interbank borrowings 231,419 446,436 1,151,959 337,465 100,455 59,989 2,327,723 Debt instruments issued 2,449 23,261 668,648 868,994 1,125,037 3,321,735 6,010,124 (*) Interbank loans are presented gross. The amount of allowances corresponds to MCh$463. (**) Loans and accounts receivable from customers at amortized cost are presented gross. Allowances by loan type are detailed as follows: Commercial MCh$484,707; Mortgage MCh$66,117; and Consumer MCh$217,296.

Foreign currency position (Tabl

Foreign currency position (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Schedule assets and liabilities in local and foreign currency, readjustable by variation of exchange rate	In the Consolidated Statements of Financial Position as of December 31, 2019 and 2018, assets and liabilities are included in local and foreign currency, as well as adjustable by the variation of the exchange rate, for the amounts indicated below: Others As of December 31, 2019 Note CLP (*) UF USD COP EUR currency Readjustment Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 243,754 — 364,594 398,780 2,553 — — 1,009,681 Cash items in process of collection 5b) 150,463 — 80,132 710 — — — 231,305 Financial instruments at fair value through profit or loss 6 112,224 — — 71,478 — — — 183,702 Financial instruments at fair value through other comprehensive income 11 1,600,147 1,023,726 124,310 850,707 — — — 3,598,890 Loans and accounts receivable at amortized cost 10 5,678,458 8,749,298 3,459,607 4,355,845 841 — 10,648 22,254,697 Financial instruments at amortized cost 11 — — 30,123 85,535 — — — 115,658 Investments under resale agreements 7 46,686 — — 29,289 — — — 75,975 Investments in companies 5,833 — — 3,772 — — — 9,605 Financial derivative contracts 8 2,199,266 324,414 536,936 93,427 914 — — 3,154,957 Interbank loans, net 9 — — 35,944 20,452 — — — 56,396 Intangible assets 12 1,400,449 — 1,104 172,880 — — — 1,574,433 Property, plant, and equipment 13 72,766 — 422 21,892 — — — 95,080 Right-of-use asset under lease agreements 121,241 — 7,936 38,264 — — — 167,441 Current taxes 14 30,773 — — 54,743 — — — 85,516 Deferred taxes 14 182,302 — 20,942 5,413 — — — 208,657 Other assets 15 248,755 91,456 359,198 71,182 — — 270 770,861 Other non-current assets held for sale 16 17,202 — — — — — — 17,202 TOTAL ASSETS 12,110,319 10,188,894 5,021,248 6,274,369 4,308 — 10,918 33,610,056 Deposits and other demand liabilities 16 2,255,736 2,855 534,005 2,079,465 1,387 — — 4,873,448 Cash in process of being cleared 5b) 100,395 — 64,178 — — — — 164,573 Obligations under repurchase agreements 7 499,136 — — 60,321 — — — 559,457 Time deposits and other time liabilities 16 7,952,973 391,679 1,356,132 1,919,402 — — 1 11,620,187 Financial derivative contracts 8 1,960,447 402,899 476,568 97,212 908 — — 2,938,034 Interbank borrowings 17 — — 2,563,630 83,126 — — — 2,646,756 Debt instruments issued 18 763,503 4,924,260 129,281 590,471 841 — — 6,408,356 Other financial liabilities 18 12,956 10 — — — — — 12,966 Lease contracts liabilities 659 129,034 7,689 35,273 — — 269 172,924 Current taxes 14 13 — — — — — — 13 Deferred taxes 14 — — — 263 — — — 263 Provisions 19 106,456 — — 71,371 — — — 177,827 Other liabilities 20 265,814 268,685 115,196 54,446 — — 4,773 708,914 Liabilities directly associated with non-current assets held for sale 20 — — — — — — — — TOTAL LIABILITIES 13,918,088 6,119,422 5,246,679 4,991,350 3,136 — 5,043 30,283,718 Assets (liabilities) net (1,807,769) 4,069,472 (225,431) 1,283,019 1,172 — 5,875 3,326,338 (*) Includes transactions denominated in foreign currencies but that are settled in pesos. Note 38 - Foreign currency position, continued Others As of December 31, 2018 Note CLP (*) UF USD COP EUR currency Readjustment Totals MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Cash and deposits in banks 5a) 223,099 — 449,437 299,458 15,686 — — 987,680 Cash items in process of collection 5b) 195,640 — 119,725 226 2,861 206 — 318,658 Financial instruments at fair value through profit or loss 6 54,162 — — 42,781 — — — 96,943 Financial instruments at fair value through other comprehensive income 11 835,543 680,505 78,908 1,060,143 — — — 2,657,154 Loans and accounts receivable at amortized cost 10 5,571,537 7,785,104 3,208,848 4,120,535 19,391 13 8,942 20,714,370 Financial instruments at amortized cost 11 — — 122,391 76,532 — — — 198,923 Investments under resale agreements 7 91,510 — — 17,957 — — — 109,467 Financial derivative contracts 8 972,693 66,989 226,561 102,709 5 — — 1,368,957 Interbank loans, net 9 239,963 — 70,823 30,458 — — — 341,244 Intangible assets 12 1,389,518 — 1,308 180,138 — — — 1,570,964 Property, plant, and equipment 13 77,639 — 846 17,079 — — — 95,564 Current taxes 14 68,094 — 2,887 52,148 — — — 123,129 Deferred taxes 14 130,883 — 20,311 27,492 — — — 178,686 Other assets 15 200,164 7,787 164,724 121,619 7,467 36 — 501,797 Other non-current assets held for sale 16 59,802 — — — — — — 59,802 TOTAL ASSETS 10,110,247 8,540,385 4,466,769 6,151,330 45,410 255 8,942 29,323,338 Deposits and other demand liabilities 16 2,058,537 4,214 444,668 1,785,581 7,418 57 — 4,300,475 Cash in process of being cleared 5b) 133,926 — 112,284 — 796 159 — 247,165 Obligations under repurchase agreements 7 363,789 — 6,834 644,991 — — — 1,015,614 Time deposits and other time liabilities 16 6,513,874 609,136 1,955,631 1,042,445 25 — — 10,121,111 Financial derivative contracts 8 773,186 83,339 178,869 76,207 1,205 — — 1,112,806 Interbank borrowings 17 — 5,863 2,279,817 39,859 2,170 14 — 2,327,723 Debt instruments issued 18 439,805 4,475,832 649,897 444,590 — — — 6,010,124 Other financial liabilities 18 12,390 10 — — — — — 12,400 Current taxes 14 528 — — 663 — — — 1,191 Deferred taxes 14 — — 454 17 — — — 471 Provisions 19 140,925 — — 73,978 — — — 214,903 Other liabilities 20 239,175 133,106 69,900 49,508 2,509 — 27,597 521,795 Liabilities directly associated with non-current assets held for sale 20 — — — — — — — — TOTAL LIABILITIES 10,676,135 5,311,500 5,698,354 4,157,839 14,123 230 27,597 28,885,778 Assets (liabilities) net (565,888) 3,228,885 (1,231,585) 1,993,491 31,287 25 (18,655) 3,437,560

General Information and Summa_4

General Information and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017CLP ($)	Dec. 31, 2019CLP ($)	Jan. 01, 2019CLP ($)	Jan. 01, 2018CLP ($)	Dec. 31, 2016CLP ($)
Disclosure of detailed information about business combination [line items]
Assets		$ 29,323,338		$ 33,610,056
Equity		$ 3,437,560	$ 3,428,757	$ 3,326,338	$ 3,437,560	$ 3,428,757	$ 3,423,712
Incremental interest rate for loans					2.01%
Weighted average incremental interest rate for loans	2.04%
Bank provision, profits	30.00%	30.00%
Percentage of dividend on profit	30.00%	30.00%	40.00%
Lifetime expected credit losses [member]
Disclosure of detailed information about business combination [line items]
Recorded allowance for lifetime expected credit losses	100.00%			100.00%
USD [member]
Disclosure of detailed information about business combination [line items]
Assets	$ 48,874
Equity	$ 4,316
Closing foreign exchange rate	748.77	694.73	614.48	748.77
COP [member]
Disclosure of detailed information about business combination [line items]
Closing foreign exchange rate	0.2284	0.2139	0.2058	0.2284
CLP [member]
Disclosure of detailed information about business combination [line items]
Assets				$ 33,600,585
Equity				$ 3,232,103
Itau Unibanco [member]
Disclosure of detailed information about business combination [line items]
Percentage of voting equity interests acquired	38.14%			38.14%
Saieh Family [member]
Disclosure of detailed information about business combination [line items]
Percentage of voting equity interests acquired	28.57%			28.57%
Non controlling shareholders [member]
Disclosure of detailed information about business combination [line items]
Percentage of voting equity interests acquired	33.29%			33.29%

General Information and Summa_5

General Information and Summary of Significant Accounting Policies - Schedule of exercise control (Detail)	Jul. 04, 2018	Dec. 31, 2019	Dec. 31, 2018
Itau Corredores de Bolsa Limitada [member]
Disclosure of subsidiaries [line items]
Direct interest owned		99.99%	99.99%
Indirect interest owned		0.01%	0.01%
Total interest owned		100.00%	100.00%
Itau Chile Administradora General de Fondos S.A. [member]
Disclosure of subsidiaries [line items]
Direct interest owned		99.994%	99.994%
Indirect interest owned		0.006%	0.006%
Total interest owned		100.00%	100.00%
Itau Corredores de Seguros S.A [member]
Disclosure of subsidiaries [line items]
Direct interest owned		99.99%	99.90%
Indirect interest owned		0.01%	0.10%
Total interest owned		100.00%	100.00%
Itau Asesorias Financieras S.A. [member]
Disclosure of subsidiaries [line items]
Direct interest owned		99.99%	99.99%
Indirect interest owned		0.01%	0.01%
Total interest owned	100.00%	100.00%	100.00%
CorpLegal S.A. [member]
Disclosure of subsidiaries [line items]
Direct interest owned			99.99%
Indirect interest owned			0.01%
Total interest owned			100.00%
Recaudaciones y Cobranzas Limitada [member]
Disclosure of subsidiaries [line items]
Direct interest owned		99.99%	99.999%
Indirect interest owned		0.01%	0.001%
Total interest owned		100.00%	100.00%
Itau Corpbanca New York Branch [member]
Disclosure of subsidiaries [line items]
Direct interest owned		100.00%	100.00%
Total interest owned		100.00%	100.00%
Banco CorpBanca Colombia S.A [member]
Disclosure of subsidiaries [line items]
Direct interest owned		87.10%	66.279%
Total interest owned		87.10%	66.279%
Helm Corredor de Seguros S.A. [member]
Disclosure of subsidiaries [line items]
Direct interest owned		79.98%	79.98%
Total interest owned		79.98%	79.98%
Itau Securities Services Colombia S.A. Sociedad Fiduciaria [member]
Disclosure of subsidiaries [line items]
Direct interest owned		5.499%	5.499%
Indirect interest owned		82.31%	62.634%
Total interest owned		87.809%	68.133%
Helm Comisionista de Bolsa S.A. [member]
Disclosure of subsidiaries [line items]
Direct interest owned		2.219%	2.219%
Indirect interest owned		85.166%	64.807%
Total interest owned		87.385%	67.026%
Helm Fiduciaria S.A. [member]
Disclosure of subsidiaries [line items]
Indirect interest owned		87.083%	66.266%
Total interest owned		87.083%	66.266%
Helm Bank Panama S.A. [member]
Disclosure of subsidiaries [line items]
Indirect interest owned		87.10%	66.279%
Total interest owned		87.10%	66.279%
Helm Casa de Valores Panama S.A. [member]
Disclosure of subsidiaries [line items]
Indirect interest owned		87.10%	66.279%
Total interest owned		87.10%	66.279%

General Information and Summa_6

General Information and Summary of Significant Accounting Policies - Schedule of exercise control other (Detail) - shares	May 02, 2019	Dec. 10, 2018	Sep. 10, 2018	Jul. 04, 2018	Dec. 31, 2019	Dec. 31, 2018
Itau Asesorias Financieras S.A. [member]
Disclosure of subsidiaries [line items]
Number of shares acquired				2
Interest owned				100.00%	100.00%	100.00%
Itau Corpbanca [member]
Disclosure of subsidiaries [line items]
Number of shares acquired		1	127,901
Interest owned	100.00%	100.00%	100.00%

General Information and Summa_7

General Information and Summary of Significant Accounting Policies - Schedule of Entities Classified as Associates (Detail)	12 Months Ended
	Dec. 31, 2019
Nexus S.A [member]
Disclosure of associates [line items]
Entity's share	12.90%
Transbank S.A
Disclosure of associates [line items]
Entity's share	8.72%

Accounting Changes - Summary of

Accounting Changes - Summary of Classification and Measurement of Financial Instrument (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of initial application of standards or interpretations [line items]
Financial instruments at fair value through profit or loss	$ 183,702	$ 96,943
Financial instruments at fair value through other comprehensive income	3,598,890	2,657,154
Interbank loans, net of allowances for loan losses	56,396	341,244
IAS 39 [member]
Disclosure of initial application of standards or interpretations [line items]
Financial assets classified as held to maturity				$ 202,030
Loans and accounts receivable from customers, net of allowances for loan losses				19,764,078
Interbank loans, net of allowances for loan losses				70,077
Financial assets available for sale				2,663,478
IAS 39 [member] | Financial assets at fair value through profit or loss, category [member]
Disclosure of initial application of standards or interpretations [line items]
Financial instruments classified as trading investments				415,061
Financial assets available for sale				2,663,478
IAS 39 [member] | Financial assets at amortised cost [member]
Disclosure of initial application of standards or interpretations [line items]
Financial assets classified as held to maturity				202,030
Loans and accounts receivable from customers, net of allowances for loan losses				19,764,078
Interbank loans, net of allowances for loan losses				$ 70,077
IFRS9 [member]
Disclosure of initial application of standards or interpretations [line items]
Financial instruments at fair value through profit or loss	$ 183,702	$ 96,943	$ 423,855
Financial instruments at fair value through other comprehensive income			2,658,739
IFRS9 [member] | Financial assets at fair value through profit or loss, category [member]
Disclosure of initial application of standards or interpretations [line items]
Financial instruments at fair value through profit or loss			423,855
IFRS9 [member] | Financial assets at amortised cost [member]
Disclosure of initial application of standards or interpretations [line items]
Financial instruments at fair value through profit or loss			201,993
Loans and accounts receivable from customers, net of allowances for loan losses			19,612,201
Interbank loans, net of allowances for loan losses			70,077
IFRS9 [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of initial application of standards or interpretations [line items]
Financial instruments at fair value through other comprehensive income			$ 2,658,739

Accounting Changes - Summary _2

Accounting Changes - Summary of Reconciliation the Consolidated Balance Sheets under IAS39 to IFRS9 (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and deposits in banks	$ 1,009,681		$ 987,680
Cash items in process of collection	231,305		318,658
Financial instruments at fair value through profit or loss	183,702		96,943
Financial instruments at fair value through other comprehensive income	3,598,890		2,657,154
Interbank loans at amortized cost	56,396		341,244
Loans and accounts receivable from customers at amortized cost	22,254,697		20,714,370
Financial instruments at amortized cost	115,658		198,923
Investments under resale agreements	75,975		109,467
Financial derivative contracts	3,154,957		1,368,957
Interbank loans, net	56,396		341,244
Intangible assets	1,574,433		1,570,964
Property, plant and equipment	95,080		95,564		$ 130,579
Current taxes	85,516		123,129
Deferred taxes	208,657		178,686
Other assets	770,861		501,797
Other non-current assets held for sale	17,202		59,802
TOTAL ASSETS	33,610,056		29,323,338
Deposits and other demand liabilities	4,873,448		4,300,475
Cash in process of being cleared	164,573		247,165
Obligations under repurchase agreements	559,457		1,015,614
Time deposits and other time liabilities	11,620,187		10,121,111
Financial derivative contracts	2,938,034		1,112,806
Interbank borrowings	2,646,756		2,327,723
Debt instruments issued	6,408,356		6,010,124		5,950,038
Other financial liabilities	12,966		12,400
Current taxes	13		1,191
Deferred taxes	263		471
Provisions	177,827		214,903		117,889
Other liabilities	708,914		521,795
Liabilities directly associated with non-current assets held for sale	0		0
TOTAL LIABILITIES	30,283,718		25,885,778
Attributable to equity holders of the Bank:
Equity	1,862,826		1,862,826		1,862,826
Reserves	1,195,849		1,290,131
Retained earnings:	125,926		50,362
Net income for the year	113,684		171,331
Less: Provision for mandatory dividends	(38,120)		(51,614)
Total equity attributable to equity holders of the Bank	3,231,893		3,219,478
Non-controllinginterest	94,445		218,082		217,280	$ 238,969
TOTAL EQUITY	3,326,338	$ 3,437,560	3,437,560	$ 3,428,757	3,428,757	$ 3,423,712
TOTAL LIABILITIES AND EQUITY	33,610,056		29,323,338
IAS 39 [member]
ASSETS
Cash and deposits in banks					964,030
Cash items in process of collection					157,017
Investments under resale agreements					28,524
Financial derivative contracts					1,248,775
Interbank loans, net					70,077
Trading investments					415,061
Loans and accounts receivable from customers, net					19,764,078
Available for sale investments					2,663,478
Held to maturity investments					202,030
Intangible assets					1,562,654
Property, plant and equipment					130,579
Current taxes					238,452
Deferred taxes					140,685
Other assets					429,025
Other non-current assets held for sale					18,308
TOTAL ASSETS					28,032,773
Deposits and other demand liabilities					4,141,667
Cash in process of being cleared					109,496
Obligations under repurchase agreements					420,920
Time deposits and other time liabilities					10,065,243
Financial derivative contracts					1,095,154
Interbank borrowings					2,196,130
Debt instruments issued					5,950,038
Other financial liabilities					17,066
Current taxes					624
Deferred taxes					26,354
Provisions					117,889
Other liabilities					463,435
Liabilities directly associated with non-current assets held for sale					0
TOTAL LIABILITIES					24,604,016
Attributable to equity holders of the Bank:
Equity					1,862,826
Reserves					1,290,131
Valuation accounts					(4,735)
Retained earnings:					63,255
Retained earnings from prior years					12,668
Net income for the year					67,821
Less: Provision for mandatory dividends					(17,234)
Total equity attributable to equity holders of the Bank					3,211,477
Non-controllinginterest					217,280
TOTAL EQUITY					3,428,757
TOTAL LIABILITIES AND EQUITY					$ 28,032,773
Reclassification [member]
ASSETS
Financial instruments at fair value through profit or loss				421,331
Financial instruments at fair value through other comprehensive income				2,657,208
Interbank loans at amortized cost				70,077
Loans and accounts receivable from customers at amortized cost				19,764,078
Financial instruments at amortized cost				202,030
Interbank loans, net				(70,077)
Trading investments				(415,061)
Loans and accounts receivable from customers, net				(19,764,078)
Available for sale investments				(2,663,478)
Held to maturity investments				(202,030)
Liabilities directly associated with non-current assets held for sale				0
Increase decrease in remeasurement [member]
ASSETS
Financial instruments at fair value through profit or loss				2,524
Financial instruments at fair value through other comprehensive income				1,531
Loans and accounts receivable from customers at amortized cost				(151,877)
Financial instruments at amortized cost				(37)
Deferred taxes				42,792
TOTAL ASSETS				(105,067)
Deferred taxes				(2,550)
Provisions				20,801
Liabilities directly associated with non-current assets held for sale				0
TOTAL LIABILITIES				18,251
Attributable to equity holders of the Bank:
Valuation accounts				997
Retained earnings:				(123,082)
Retained earnings from prior years				(55,261)
Net income for the year				(67,821)
Total equity attributable to equity holders of the Bank				(122,085)
Non-controllinginterest				(1,233)
TOTAL EQUITY				(123,318)
TOTAL LIABILITIES AND EQUITY				(105,067)
IFRS9 [member]
ASSETS
Cash and deposits in banks				964,030
Cash items in process of collection				157,017
Financial instruments at fair value through profit or loss	$ 183,702		$ 96,943	423,855
Financial instruments at fair value through other comprehensive income				2,658,739
Interbank loans at amortized cost				70,077
Loans and accounts receivable from customers at amortized cost				19,612,201
Financial instruments at amortized cost				201,993
Investments under resale agreements				28,524
Financial derivative contracts				1,248,775
Intangible assets				1,562,654
Property, plant and equipment				130,579
Current taxes				238,452
Deferred taxes				183,477
Other assets				429,025
Other non-current assets held for sale				18,308
TOTAL ASSETS				27,927,706
Deposits and other demand liabilities				4,141,667
Cash in process of being cleared				109,496
Obligations under repurchase agreements				420,920
Time deposits and other time liabilities				10,065,243
Financial derivative contracts				1,095,154
Interbank borrowings				2,196,130
Debt instruments issued				5,950,038
Other financial liabilities				17,066
Current taxes				624
Deferred taxes				23,804
Provisions				138,690
Other liabilities				463,435
Liabilities directly associated with non-current assets held for sale				0
TOTAL LIABILITIES				24,622,267
Attributable to equity holders of the Bank:
Equity				1,862,826
Reserves				1,290,131
Valuation accounts				(3,738)
Retained earnings:				(59,827)
Retained earnings from prior years				(42,593)
Less: Provision for mandatory dividends				(17,234)
Total equity attributable to equity holders of the Bank				3,089,392
Non-controllinginterest				216,047
TOTAL EQUITY				3,305,439
TOTAL LIABILITIES AND EQUITY				$ 27,927,706

Accounting Changes - Schedule o

Accounting Changes - Schedule of Loan Portfolio Classified as Loans and Accounts Receivable at Amortized Cost (Detail) $ in Millions	Jan. 01, 2018CLP ($)
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	$ 20,143,785
Restatement of the prior year	0
Balances as of December 31, 2018	20,143,785
Individually Evaluated [Member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	16,952,234
Restatement of the prior year	0
Balances as of December 31, 2018	16,952,234
Individually Evaluated [Member] | Financial Instrument Initial Recognition of Credit Impaired [Member] | 12-month expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	12,409,654
Restatement of the prior year	0
Balances as of December 31, 2018	12,409,654
Individually Evaluated [Member] | Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	3,813,662
Restatement of the prior year	0
Balances as of December 31, 2018	3,813,662
Individually Evaluated [Member] | Financial instruments credit-impaired [member] | Lifetime expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	728,918
Restatement of the prior year	0
Balances as of December 31, 2018	728,918
Group [Member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	3,191,551
Restatement of the prior year	0
Balances as of December 31, 2018	3,191,551
Group [Member] | Financial Instrument Initial Recognition of Credit Impaired [Member] | 12-month expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	962,263
Restatement of the prior year	0
Balances as of December 31, 2018	962,263
Group [Member] | Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	1,776,783
Restatement of the prior year	0
Balances as of December 31, 2018	1,776,783
Group [Member] | Financial instruments credit-impaired [member] | Lifetime expected credit losses [member]
Disclosure of initial application of standards or interpretations [line items]
Beginning balance	452,505
Restatement of the prior year	0
Balances as of December 31, 2018	$ 452,505

Accounting Changes - Additional

Accounting Changes - Additional Information (Detail) - CLP ($) $ in Millions	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Disclosure of initial application of standards or interpretations [line items]
Right-of-use assets		$ 167,441	$ 176,795
Lease liabilities	$ 176,795	172,924
Adoption Of IFRS 16 [member]
Disclosure of initial application of standards or interpretations [line items]
Liability for lease contract		$ 176,795
Percentage of lease valuation solvency indicator		14.62%
Expected impact of initial application of new standards [member] | Adoption Of IFRS 16 [member]
Disclosure of initial application of standards or interpretations [line items]
Change in percentage of lease valuation solvency indicator	(0.11%)
Percentage of lease valuation solvency indicator	14.51%

Accounting Changes - Summary _3

Accounting Changes - Summary of Impacts and Reclassification due to Initial Application (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure of initial application of standards or interpretations [line items]
Right of use asset under lease agreements	$ 167,441		$ 176,795
TOTAL ASSETS	33,610,056		29,323,338
Lease contracts liabilities	172,924	$ 176,795
TOTAL LIABILITIES	$ 30,283,718		$ 25,885,778
Initial recognition [member]
Disclosure of initial application of standards or interpretations [line items]
Right of use asset under lease agreements		176,795
TOTAL ASSETS		176,795
Lease contracts liabilities		176,795
TOTAL LIABILITIES		176,795
Reclassification [member]
Disclosure of initial application of standards or interpretations [line items]
Right of use asset under lease agreements		176,795
TOTAL ASSETS		176,795
Lease contracts liabilities		176,795
TOTAL LIABILITIES		$ 176,795

Significant Events - Additional

Significant Events - Additional Information (Detail) $ / shares in Units, K in Millions, $ in Millions, $ in Millions

Dec. 03, 2019USD ($)

May 02, 2019shares

Mar. 18, 2019MMK (K)

Mar. 15, 2019MMK (K)

Mar. 23, 2018COP ($)

Dec. 31, 2019item

Dec. 31, 2018CLP ($)$ / shares

Dec. 31, 2017CLP ($)

Dec. 10, 2019item

Dec. 09, 2019item

Jul. 04, 2019

May 29, 2019

Mar. 18, 2019CLP ($)

Disclosure of subsidiaries [line items]

Number of board of directors | item

11

Number of acting board of directors | item

2

Percentage of dividend on profit

30.00%

30.00%

40.00%

Dividend payables

$ 51,614

Distribution of dividends

$ 51,614

$ 22,979

Dividend per share (in dollars per share) | $ / shares

$ 0.100728627

ITAÚ CORREDORES DE SEGUROS S.A.

Disclosure of subsidiaries [line items]

Percentage of dividend on profit

61.1027%

Dividend payables

$ 14,722

ITAÚ ADMINISTRADORA GENERAL DE FONDOS S.A.

Disclosure of subsidiaries [line items]

Dividend payables | K

K 6,790

ITAÚ ASESORÍAS FINANCIERAS LTDA.

Disclosure of subsidiaries [line items]

Percentage of dividend on profit

90.00%

Dividend payables | K

K 7,489

Number Of Shares Sold | shares

3

Total Number Of Shares Held | shares

30,000

ITAÚ CORPBANCA COLOMBIA

Disclosure of subsidiaries [line items]

Percentage of dividend on profit

100.00%

Dividend payables

$ 10,343,857,073.51

The number of board of directors members | item

5

9

ITAÚ CORPBANCA COLOMBIA

Disclosure of subsidiaries [line items]

Percentage of voting equity interests acquired

20.82%

Amount of shares acquired

$ 334

Increase (decrease) in ownership interest

87.10%

ITAÚ CORPBANCA COLOMBIA | Helm LLC

Disclosure of subsidiaries [line items]

Percentage of voting equity interests acquired

19.44%

19.44%

ITAÚ CORPBANCA COLOMBIA | KSHC

Disclosure of subsidiaries [line items]

Percentage of voting equity interests acquired

1.38%

1.38%

Reporting Segments - Schedule o

Reporting Segments - Schedule of Group Operates in Two Main Geographic Areas (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [line items]
Interest income	$ 1,773,640	$ 1,739,317	$ 1,646,329
Interest expense	(873,222)	(851,654)	(863,347)
Net interest income	900,418	887,663	782,982
Chile [member]
Disclosure of geographical areas [line items]
Interest income	1,245,465	1,208,481	1,067,124
Interest expense	(631,279)	(593,796)	(529,584)
Net interest income	614,186	614,685	537,540
Colombia [member]
Disclosure of geographical areas [line items]
Interest income	528,175	530,836	579,205
Interest expense	(241,943)	(257,858)	(333,763)
Net interest income	$ 286,232	$ 272,978	$ 245,442

Reporting Segments - Schedule_2

Reporting Segments - Schedule of Assets and Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [line items]
Cash and deposits in banks	$ 1,009,681		$ 987,680
Cash items in process of collection	231,305		318,658
Financial instruments at fair value through profit or loss	183,702		96,943
Financial instruments at fair value through other comprehensive income	3,598,890		2,657,154
Loans and accounts receivable at amortized cost and interbank loans	22,311,093		21,055,614
Investment in companies	9,605
Financial instruments at amortized cost	115,658		198,923
Investments under resale agreements	75,975		109,467
Financial derivative contracts	3,154,957		1,368,957
Intangible assets	1,574,433		1,570,964
Property, plant and equipment	95,080		95,564	$ 130,579
Right of use asset under lease agreements	167,441		176,795
Current taxes	85,516		123,129
Deferred taxes	208,657		178,686
Other assets	770,861		501,797
Other non-current assets held for sale	17,202		59,802
TOTAL ASSETS	33,610,056		29,323,338
LIABILITIES
Deposits and other demand liabilities	4,873,448		4,300,475
Cash in process of being cleared	164,573		247,165
Obligations under repurchase agreements	559,457		1,015,614
Time deposits and other time liabilities	11,620,187		10,121,111
Financial derivative contracts	2,938,034		1,112,806
Interbank borrowings	2,646,756		2,327,723
Debt instruments issued	6,408,356		6,010,124
Other financial liabilities	12,966		12,400
Lease contracts liabilities	172,924	$ 176,795
Current taxes	13		1,191
Deferred taxes	263		471
Provisions	177,827		214,903
Other liabilities	708,914		521,795
Liabilities directly associated with non-current assets held for sale	0		0
TOTAL LIABILITIES	30,283,718		25,885,778
Goodwill generated in business combination	1,151,019		1,135,392
Chile [member]
Disclosure of geographical areas [line items]
Cash and deposits in banks	610,901		483,416
Cash items in process of collection	230,595		318,433
Financial instruments at fair value through profit or loss	112,224		54,162
Financial instruments at fair value through other comprehensive income	2,751,959		1,594,955
Loans and accounts receivable at amortized cost and interbank loans	17,651,839		16,616,358
Investment in companies	5,833
Financial instruments at amortized cost	30,123		122,385
Investments under resale agreements	46,686		91,510
Financial derivative contracts	3,061,530		1,266,218
Intangible assets	1,408,003		1,432,529
Property, plant and equipment	73,169		78,430
Right of use asset under lease agreements	128,868
Current taxes	30,773		70,255
Deferred taxes	200,747		151,194
Other assets	699,679		378,691
Other non-current assets held for sale	10,291		59,802
TOTAL ASSETS	27,053,220		22,718,338
LIABILITIES
Deposits and other demand liabilities	2,765,496		2,463,722
Cash in process of being cleared	164,573		247,165
Obligations under repurchase agreements	499,136		370,623
Time deposits and other time liabilities	9,700,785		8,104,729
Financial derivative contracts	2,839,914		1,035,394
Interbank borrowings	1,883,900		1,602,125
Debt instruments issued	5,687,763		5,445,000
Other financial liabilities	12,966		12,400
Lease contracts liabilities	137,334
Current taxes	13		528
Provisions	88,579		140,663
Other liabilities	653,786		471,672
Liabilities directly associated with non-current assets held for sale	0		0
TOTAL LIABILITIES	24,434,245		19,894,021
Colombia [member]
Disclosure of geographical areas [line items]
Cash and deposits in banks	398,780		504,264
Cash items in process of collection	710		225
Financial instruments at fair value through profit or loss	71,478		42,781
Financial instruments at fair value through other comprehensive income	846,931		1,062,199
Loans and accounts receivable at amortized cost and interbank loans	4,659,254		4,439,256
Investment in companies	3,772
Financial instruments at amortized cost	85,535		76,538
Investments under resale agreements	29,289		17,957
Financial derivative contracts	93,427		102,739
Intangible assets	166,430		138,435
Property, plant and equipment	21,911		17,134
Right of use asset under lease agreements	38,573
Current taxes	54,743		52,874
Deferred taxes	7,910		27,492
Other assets	71,182		123,106
Other non-current assets held for sale	6,911
TOTAL ASSETS	6,556,836		6,605,000
LIABILITIES
Deposits and other demand liabilities	2,107,952		1,836,753
Obligations under repurchase agreements	60,321		644,991
Time deposits and other time liabilities	1,919,402		2,016,382
Financial derivative contracts	98,120		77,412
Interbank borrowings	762,856		725,598
Debt instruments issued	720,593		565,124
Lease contracts liabilities	35,590
Current taxes			663
Deferred taxes	263		471
Provisions	89,248		74,240
Other liabilities	55,128		50,123
Liabilities directly associated with non-current assets held for sale	0		0
TOTAL LIABILITIES	$ 5,849,473		$ 5,991,757

Reporting Segments - Schedule_3

Reporting Segments - Schedule of Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [line items]
Net interest income	$ 900,418	$ 887,663	$ 782,982
Net fee and commission income	174,404	186,129	177,571
Net income from financial operations	143,634	172,755	8,268
Net foreign exchange gain (loss)	27,626	(17,965)	46,165
Other operating income	44,972	26,656	41,532
Provision for loan losses	(382,678)	(279,798)	(315,417)
NET OPERATING PROFIT	908,376	975,440	741,101
Depreciation and amortization	(127,166)	(86,817)	(81,845)
Operating expenses	(609,367)	(654,710)	(649,302)
OPERATING INCOME (LOSS)	171,843	233,913	9,954
Income from investment in associates and other companies	532
Income taxes	(47,853)	(67,059)	52,871
TOTAL CONSOLIDATED INCOME FOR THE YEAR	124,522	166,854	62,825
Chile [member]
Disclosure of geographical areas [line items]
Net interest income	614,186	614,685	537,540
Net fee and commission income	138,007	149,673	135,624
Net income from financial operations	152,600	128,264	(49,615)
Net foreign exchange gain (loss)	(24,389)	5,726	34,661
Other operating income	20,460	14,337	33,398
Provision for loan losses	(295,116)	(127,804)	(169,233)
NET OPERATING PROFIT	605,748	784,881	522,375
Depreciation and amortization	(86,593)	(53,544)	(51,213)
Operating expenses	(394,271)	(442,943)	(424,733)
OPERATING INCOME (LOSS)	124,884	288,394	46,429
Income from investment in associates and other companies	800
Income taxes	(33,393)	(85,269)	31,188
TOTAL CONSOLIDATED INCOME FOR THE YEAR	92,291	203,125	77,617
Colombia [member]
Disclosure of geographical areas [line items]
Net interest income	286,232	272,978	245,442
Net fee and commission income	36,397	36,456	41,947
Net income from financial operations	(8,966)	44,491	57,883
Net foreign exchange gain (loss)	52,015	(23,691)	11,504
Other operating income	24,512	12,319	8,134
Provision for loan losses	(87,562)	(151,994)	(146,184)
NET OPERATING PROFIT	302,628	190,559	218,726
Depreciation and amortization	(40,573)	(33,273)	(30,632)
Operating expenses	(215,096)	(211,767)	(224,569)
OPERATING INCOME (LOSS)	46,959	(54,481)	(36,475)
Income from investment in associates and other companies	(268)
Income taxes	(14,460)	18,210	21,683
TOTAL CONSOLIDATED INCOME FOR THE YEAR	$ 32,231	$ (36,271)	$ (14,792)

Cash and Cash Equivalents - Sch

Cash and Cash Equivalents - Schedule of Balances included under Cash and Cash Equivalents (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash and deposits in banks
Cash	$ 253,779	$ 255,449
Deposits in the Central Bank of Chile	103,756	70,444
Deposits in local banks	14,254	4,422
Deposits in foreign banks	637,892	657,365
Subtotals cash and deposits in banks	1,009,681	987,680
Cash items in process of collection, net	66,732	71,493
Highly liquid financial instruments	295,551	194,412
Investments under resale agreements	75,975	109,467
Totals cash and cash equivalents	$ 1,447,939	$ 1,363,052	$ 1,075,089	$ 2,116,744

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Highly Liquid Financial Instruments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Highly liquid financial instruments
Highly liquid financial instruments	$ 295,551	$ 194,412
Financial assets at fair value through profit or loss, category [member]
Highly liquid financial instruments
Highly liquid financial instruments	28,772	15,741
Financial assets at fair value through other comprehensive income [member]
Highly liquid financial instruments
Highly liquid financial instruments	$ 266,779	$ 178,671

Cash and Cash Equivalents - S_2

Cash and Cash Equivalents - Schedule of Investment Under Agreement to Resell (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Cash and cash equivalents [abstract]
Investment under resale agreements	$ 75,975	$ 109,467

Cash and Cash Equivalents - S_3

Cash and Cash Equivalents - Schedule of Cash in the Process of Collection (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets
Documents held by other banks (documents to be cleared)	$ 76,922	$ 77,085
Funds receivable	154,383	241,573
Subtotals assets	231,305	318,658
Liabilities
Funds payable	164,573	247,165
Subtotals liabilities	164,573	247,165
Cash items in process of collection, net	$ 66,732	$ 71,493

Financial Instruments at Fair_3

Financial Instruments at Fair Value through Profit or Loss - Schedule of Financial Instruments at Fair Value Through Profit or Loss (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	$ 183,702	$ 96,943
IFRS9 [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	183,702	96,943	$ 423,855
Financial instruments at fair value through profit or loss within three months	28,772	15,741
IFRS9 [member] | Chilean Central Bank And Government Security [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	52,019	21,736
IFRS9 [member] | Chilean Central Bank And Government Security [member] | Other Chilean Central Bank and Government Securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	28,879	14,872
IFRS9 [member] | Other Chilean securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	905	3
IFRS9 [member] | Other Chilean securities [member] | Note [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss		4,014
IFRS9 [member] | Other Chilean securities [member] | Other Securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	22,218
IFRS9 [member] | Foreign Financial Securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	67,088	23,276
IFRS9 [member] | Foreign Financial Securities [member] | Other Securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	4,390	19,505
IFRS9 [member] | Investments in mutual funds [member] | Funds managed by related subsidiaries [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	5,870	3,532
IFRS9 [member] | Investments in mutual funds [member] | Funds managed by third parties [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	33
IFRS9 [member] | Other Investment [member] | Other Financial instruments at fair value through profit loss [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	$ 2,300	$ 10,005

Financial Instruments at Fair_4

Financial Instruments at Fair Value through Profit or Loss - Additional Information (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	$ 183,702	$ 96,943
IFRS9 [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss	$ 183,702	$ 96,943	$ 423,855

Investments Under Resale Agre_3

Investments Under Resale Agreements and Obligations Under Repurchase Agreements - Schedule of Instruments Acquired Under Agreements to Resell (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	$ 75,975	$ 109,467
Foreign Institution Securities [member] | Chilean Central Bank and Government Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	27,546	17,351
Foreign Institution Securities [member] | Other Foreign Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	1,742	606
Other Chilean securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	8,603
Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	20,593	14,533
Chilean Central Bank and Government Securities [member] | Government Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	17,491	76,977
Up to three months [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	75,975	109,467
Up to three months [member] | Foreign Institution Securities [member] | Chilean Central Bank and Government Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	27,546	17,351
Up to three months [member] | Foreign Institution Securities [member] | Other Foreign Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	1,742	606
Up to three months [member] | Other Chilean securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	8,603
Up to three months [member] | Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	20,593	14,533
Up to three months [member] | Chilean Central Bank and Government Securities [member] | Government Securities [member]
Disclosure of financial assets [line items]
Financial assets purchased agreed to resell	$ 17,491	$ 76,977

Investments Under Resale Agre_4

Investments Under Resale Agreements and Obligations Under Repurchase Agreements - Schedule of Instruments Acquired Under Agreements to Repurchase (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	$ 559,457	$ 1,015,614
Other Chilean securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	318,389
Other Chilean securities [member] | Other Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase		65,707
Foreign Institution Securities [member] | Other Foreign Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	60,320	644,991
Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	168,778	21,018
Chilean Central Bank and Government Securities [member] | Government Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	11,970	283,898
Up to three months [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	559,457	1,015,614
Up to three months [member] | Other Chilean securities [member] | Bonds [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	318,389
Up to three months [member] | Other Chilean securities [member] | Other Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase		65,707
Up to three months [member] | Foreign Institution Securities [member] | Other Foreign Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	60,320	644,991
Up to three months [member] | Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	168,778	21,018
Up to three months [member] | Chilean Central Bank and Government Securities [member] | Government Securities [member]
Disclosure of financial assets [line items]
Financial instrument sold in agreement to repurchase	$ 11,970	$ 283,898

Financial Derivative Contract_3

Financial Derivative Contracts and Hedge Accounting - Schedule of Portfolio of Financial Derivatives Assets (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Assets	$ 3,154,957	$ 1,368,957
Liabilities	2,938,034	1,112,806
Derivatives held for hedge accounting [member]
Disclosure of detailed information about financial instruments [line items]
Assets	203,868	86,562
Liabilities	144,069	75,615
Derivatives Held For Trading [member]
Disclosure of detailed information about financial instruments [line items]
Assets	2,951,089	1,282,395
Liabilities	$ 2,793,965	$ 1,037,191

Financial Derivative Contract_4

Financial Derivative Contracts and Hedge Accounting - Schedule of Portfolio of Derivative Financial Instruments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about hedged items [line items]
Fair Value	$ 3,154,957	$ 1,368,957
Derivative financial instruments [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	3,154,957	1,368,957
Derivative financial instruments [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Fair Value	454,300	342,993
Derivative financial instruments [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Fair Value	855,780	468,093
Derivative financial instruments [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	1,840,855	553,608
Derivative financial instruments [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	3,805	4,217
Derivative financial instruments [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	217	46
Up to three months [member]
Disclosure of detailed information about hedged items [line items]
Notional value	27,353,040	12,105,990
Up to three months [member] | Derivative financial instruments [member]
Disclosure of detailed information about hedged items [line items]
Notional value	12,558,245	6,901,097
Up to three months [member] | Derivative financial instruments [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	8,174,950	3,643,505
Up to three months [member] | Derivative financial instruments [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	217,953	168,254
Up to three months [member] | Derivative financial instruments [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	4,125,562	3,061,784
Up to three months [member] | Derivative financial instruments [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	34,713	26,435
Up to three months [member] | Derivative financial instruments [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	5,067	1,119
3 months to 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	23,611,250	19,075,602
3 months to 1 year [member] | Derivative financial instruments [member]
Disclosure of detailed information about hedged items [line items]
Notional value	12,146,094	11,589,837
3 months to 1 year [member] | Derivative financial instruments [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	3,931,647	703,790
3 months to 1 year [member] | Derivative financial instruments [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	923,526	1,817,002
3 months to 1 year [member] | Derivative financial instruments [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	7,225,228	8,933,622
3 months to 1 year [member] | Derivative financial instruments [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	49,753	102,163
3 months to 1 year [member] | Derivative financial instruments [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	15,940	33,260
More than 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	75,628,987	71,663,232
More than 1 year [member] | Derivative financial instruments [member]
Disclosure of detailed information about hedged items [line items]
Notional value	39,185,317	41,846,266
More than 1 year [member] | Derivative financial instruments [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,234,741	419,833
More than 1 year [member] | Derivative financial instruments [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	6,640,937	6,449,984
More than 1 year [member] | Derivative financial instruments [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	31,308,891	34,958,699
More than 1 year [member] | Derivative financial instruments [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 748	$ 17,750

Financial Derivative Contract_5

Financial Derivative Contracts and Hedge Accounting - Schedule of Portfolio of Derivative Financial Instruments for Account Hedging and for Trading Purposes (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about hedged items [line items]
Fair Value	$ 2,938,034	$ 1,112,806
Derivative Financial Instruments Liabilities [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	2,938,034	1,112,806
Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Fair Value	504,276	322,241
Derivative Financial Instruments Liabilities [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Fair Value	769,072	298,415
Derivative Financial Instruments Liabilities [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	1,662,363	489,718
Derivative Financial Instruments Liabilities [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	1,758	1,493
Derivative Financial Instruments Liabilities [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Fair Value	565	939
Up to three months [member]
Disclosure of detailed information about hedged items [line items]
Notional value	27,353,040	12,105,990
Up to three months [member] | Derivative Financial Instruments Liabilities [member]
Disclosure of detailed information about hedged items [line items]
Notional value	14,794,795	5,204,893
Up to three months [member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	11,622,926	1,406,262
Up to three months [member] | Derivative Financial Instruments Liabilities [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	182,481	658,937
Up to three months [member] | Derivative Financial Instruments Liabilities [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,939,069	3,111,787
Up to three months [member] | Derivative Financial Instruments Liabilities [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	31,482	11,540
Up to three months [member] | Derivative Financial Instruments Liabilities [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	18,837	16,367
3 months to 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	23,611,250	19,075,602
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member]
Disclosure of detailed information about hedged items [line items]
Notional value	11,465,156	7,485,765
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	4,440,565	550,427
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	831,635	1,035,357
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	6,101,205	5,826,465
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member] | Currency call options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	51,810	35,344
3 months to 1 year [member] | Derivative Financial Instruments Liabilities [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	39,941	38,172
More than 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	75,628,987	71,663,232
More than 1 year [member] | Derivative Financial Instruments Liabilities [member]
Disclosure of detailed information about hedged items [line items]
Notional value	36,443,670	29,816,966
More than 1 year [member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	830,870	113,872
More than 1 year [member] | Derivative Financial Instruments Liabilities [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	6,249,881	3,169,546
More than 1 year [member] | Derivative Financial Instruments Liabilities [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	29,362,545	26,522,433
More than 1 year [member] | Derivative Financial Instruments Liabilities [member] | Currency put options [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 374	$ 11,115

Financial Derivative Contract_6

Financial Derivative Contracts and Hedge Accounting - Schedule of Portfolio of Derivative Financial Instruments for Hedge Accounting and Trading Purposes (Detail) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		$ 3,154,957	$ 1,368,957
Fair Value Liabilities		2,938,034	1,112,806
Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		203,868	86,562
Fair Value Liabilities		144,069	75,615
Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		2,951,089	1,282,395
Fair Value Liabilities		2,793,965	1,037,191
Forward Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		411,310	294,102
Fair Value Liabilities		420,456	294,144
Currency Swap Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		849,635	447,033
Fair Value Liabilities		764,890	269,784
Interest rate swap [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		1,686,122	536,997
Fair Value Liabilities		1,606,296	470,831
Currency call options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		3,805	4,217
Fair Value Liabilities		1,758	1,493
Currency put options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		217	46
Fair Value Liabilities		565	939
Fair Value Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,029,773	3,205,105
Fair Value Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		152,011	39,650
Fair Value Liabilities		51,726	33,847
Fair Value Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets			16,461
Fair Value Liabilities			5,814
Fair Value Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets			7,697
Fair Value Liabilities		1,479	11,038
Fair Value Hedges [Member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,982,310	3,017,527
Fair Value Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		152,011	15,492
Fair Value Liabilities		50,247	16,995
Cash Flow Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 42,979	3,427,756	2,946,484
Cash Flow Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		13,041	19,317
Fair Value Liabilities		26,321	20,768
Cash Flow Hedges [Member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,832,572	2,073,971
Cash Flow Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		4,174	4,835
Fair Value Liabilities		17,798	1,283
Cash Flow Hedges [Member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		125,747	517,254
Cash Flow Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		6,145	13,363
Fair Value Liabilities		2,703	17,593
Cash Flow Hedges [Member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		469,437	355,259
Cash Flow Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		2,722	1,119
Fair Value Liabilities		5,820	1,892
Hedges of net investment in foreign operations [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		38,816	27,595
Fair Value Liabilities		66,022	21,000
Hedges of net investment in foreign operations [member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Fair Value Assets		38,816	27,595
Fair Value Liabilities		66,022	21,000
Up to three months [member]
Disclosure of detailed information about hedged items [line items]
Notional value		27,353,040	12,105,990
Up to three months [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		3,679,576	3,744,312
Up to three months [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		23,673,464	8,361,678
Up to three months [member] | Forward Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		16,150,708	1,917,666
Up to three months [member] | Currency Swap Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		400,434	216,211
Up to three months [member] | Interest rate swap [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		7,032,223	6,172,340
Up to three months [member] | Currency call options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		66,195	37,975
Up to three months [member] | Currency put options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		23,904	17,486
Up to three months [member] | Fair Value Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			644,850
Up to three months [member] | Fair Value Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			32,639
Up to three months [member] | Fair Value Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			610,980
Up to three months [member] | Fair Value Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			1,231
Up to three months [member] | Cash Flow Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,459,105	2,188,426
Up to three months [member] | Cash Flow Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,426,697	2,188,426
Up to three months [member] | Cash Flow Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		32,408
Up to three months [member] | Hedges of net investment in foreign operations [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,220,471	911,036
Up to three months [member] | Hedges of net investment in foreign operations [member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,220,471	911,036
3 months to 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value		23,611,250	19,075,602
3 months to 1 year [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,371,790	1,323,671
3 months to 1 year [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		22,239,460	17,751,931
3 months to 1 year [member] | Forward Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		7,076,919	704,183
3 months to 1 year [member] | Currency Swap Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,708,006	2,329,400
3 months to 1 year [member] | Interest rate swap [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		13,297,091	14,509,409
3 months to 1 year [member] | Currency call options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		101,563	137,507
3 months to 1 year [member] | Currency put options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		55,881	71,432
3 months to 1 year [member] | Fair Value Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		29,342	262,452
3 months to 1 year [member] | Fair Value Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			17,421
3 months to 1 year [member] | Fair Value Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			192,926
3 months to 1 year [member] | Fair Value Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		29,342	52,105
3 months to 1 year [member] | Cash Flow Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		896,398	528,606
3 months to 1 year [member] | Cash Flow Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		849,243
3 months to 1 year [member] | Cash Flow Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		47,155	330,033
3 months to 1 year [member] | Cash Flow Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			198,573
3 months to 1 year [member] | Hedges of net investment in foreign operations [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		446,050	532,613
3 months to 1 year [member] | Hedges of net investment in foreign operations [member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		446,050	532,613
More than 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value		75,628,987	71,663,232
More than 1 year [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		3,072,685	2,527,255
More than 1 year [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		72,556,302	69,135,977
More than 1 year [member] | Forward Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,508,978	300,667
More than 1 year [member] | Currency Swap Contract [Member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		12,764,763	9,619,530
More than 1 year [member] | Interest rate swap [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		58,281,439	59,186,915
More than 1 year [member] | Currency call options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		748	17,750
More than 1 year [member] | Currency put options [member] | Derivatives Held For Trading [member]
Disclosure of detailed information about hedged items [line items]
Notional value		374	11,115
More than 1 year [member] | Fair Value Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,000,431	2,297,803
More than 1 year [member] | Fair Value Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value			102,847
More than 1 year [member] | Fair Value Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		47,463
More than 1 year [member] | Fair Value Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,952,968	2,194,956
More than 1 year [member] | Cash Flow Hedges [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,072,254	229,452
More than 1 year [member] | Cash Flow Hedges [Member] | Forward Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		556,633	130,191
More than 1 year [member] | Cash Flow Hedges [Member] | Currency Swap Contract [Member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		78,592
More than 1 year [member] | Cash Flow Hedges [Member] | Interest rate swap [member] | Derivatives held for hedge accounting [member]
Disclosure of detailed information about hedged items [line items]
Notional value		$ 437,029	$ 99,261

Financial Derivative Contract_7

Financial Derivative Contracts and Hedge Accounting - Schedule of the Hedged Items and the Hedging Instrument at Fair Value (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 2,666,521	$ 1,443,649
Fair Value Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,029,773	3,205,105
Fair Value Hedges [Member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,982,310	3,017,527
Fair Value Hedges [Member] | Foreign currency swaps contract [member]
Disclosure of detailed information about hedged items [line items]
Notional value	47,463	187,578
Fair Value Hedges [Member] | Hedged Instruments Net Of Prepayments [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,030,055
Fair Value Hedges [Member] | Commercial and mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,032	709,588
Fair Value Hedges [Member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	685,855
Fair Value Hedges [Member] | Chilean Treasury Bonds [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	128,094	796,006
Fair Value Hedges [Member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,215,074	1,699,511
Fair Value Hedges [Member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	29,342	907,302
Fair Value Hedges [Member] | 1 year [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	29,342	719,724
Fair Value Hedges [Member] | 1 year [member] | Foreign currency swaps contract [member]
Disclosure of detailed information about hedged items [line items]
Notional value		187,578
Fair Value Hedges [Member] | 1 year [member] | Hedged Instruments Net Of Prepayments [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	29,342
Fair Value Hedges [Member] | 1 year [member] | Commercial and mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,032	1,232
Fair Value Hedges [Member] | 1 year [member] | Chilean Treasury Bonds [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		666,388
Fair Value Hedges [Member] | 1 year [member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value	28,310	239,682
Fair Value Hedges [Member] | 1 - 3 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	492,891	264,036
Fair Value Hedges [Member] | 1 - 3 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	445,428	264,036
Fair Value Hedges [Member] | 1 - 3 years [member] | Foreign currency swaps contract [member]
Disclosure of detailed information about hedged items [line items]
Notional value	47,463
Fair Value Hedges [Member] | 1 - 3 years [member] | Hedged Instruments Net Of Prepayments [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	493,173
Fair Value Hedges [Member] | 1 - 3 years [member] | Commercial and mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		156,772
Fair Value Hedges [Member] | 1 - 3 years [member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	342,159
Fair Value Hedges [Member] | 1 - 3 years [member] | Chilean Treasury Bonds [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	52,704	52,132
Fair Value Hedges [Member] | 1 - 3 years [member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value	98,310	55,132
Fair Value Hedges [Member] | 3 to 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	211,181	391,157
Fair Value Hedges [Member] | 3 to 6 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	211,181	391,157
Fair Value Hedges [Member] | 3 to 6 years [member] | Hedged Instruments Net Of Prepayments [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	211,181
Fair Value Hedges [Member] | 3 to 6 years [member] | Commercial and mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		261,860
Fair Value Hedges [Member] | 3 to 6 years [member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	80,629
Fair Value Hedges [Member] | 3 to 6 years [member] | Chilean Treasury Bonds [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	49,932	35,297
Fair Value Hedges [Member] | 3 to 6 years [member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value	80,620	94,000
Fair Value Hedges [Member] | Over 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,296,359	1,642,610
Fair Value Hedges [Member] | Over 6 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,296,359	1,642,610
Fair Value Hedges [Member] | Over 6 years [member] | Hedged Instruments Net Of Prepayments [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,296,359
Fair Value Hedges [Member] | Over 6 years [member] | Commercial and mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		289,724
Fair Value Hedges [Member] | Over 6 years [member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value	263,067
Fair Value Hedges [Member] | Over 6 years [member] | Chilean Treasury Bonds [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	25,458	42,189
Fair Value Hedges [Member] | Over 6 years [member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 1,007,834	$ 1,310,697

Financial Derivative Contract_8

Financial Derivative Contracts and Hedge Accounting - Schedule of Forecasted Cash Flows by Interest Rate Risk, Fair Value Hedges (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 2,666,521	$ 1,443,649
Fair Value Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,029,773	3,205,105
Fair Value Hedges [Member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	29,342	907,302
Fair Value Hedges [Member] | 1 - 3 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	492,891	264,036
Fair Value Hedges [Member] | 3 to 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	211,181	391,157
Fair Value Hedges [Member] | Over 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value	1,296,359	1,642,610
Interest rate risk [member] | Fair Value Hedges [Member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(171,288)	(132,215)
Interest rate risk [member] | Fair Value Hedges [Member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	171,570	132,215
Interest rate risk [member] | Fair Value Hedges [Member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	94,600	50,404
Interest rate risk [member] | Fair Value Hedges [Member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	265,888	182,619
Interest rate risk [member] | Fair Value Hedges [Member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(265,888)	(182,619)
Interest rate risk [member] | Fair Value Hedges [Member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(94,318)	(50,404)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(35,905)	(14,926)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	35,905	14,926
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	9,890	9,678
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	45,795	24,604
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(45,795)	(24,604)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 year [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(9,890)	(9,678)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	30,759	(19,819)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(30,477)	19,819
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	66,797	17,366
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	36,038	37,185
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(36,038)	(37,185)
Interest rate risk [member] | Fair Value Hedges [Member] | 1 - 3 years [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(66,515)	(17,366)
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(116,252)	(34,583)
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	116,252	34,583
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	13,343	15,632
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	129,595	50,215
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(129,595)	(50,215)
Interest rate risk [member] | Fair Value Hedges [Member] | 3 to 6 years [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(13,343)	(15,632)
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(49,890)	(62,887)
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	49,890	62,887
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	4,570	7,728
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	54,460	70,615
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value	(54,460)	(70,615)
Interest rate risk [member] | Fair Value Hedges [Member] | Over 6 years [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ (4,570)	$ (7,728)

Financial Derivative Contract_9

Financial Derivative Contracts and Hedge Accounting - Schedule of Nominal Values of the Hedged Item (Detail) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value		$ 2,666,521	$ 1,443,649
Cash Flow Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 42,979	3,427,756	2,946,484
Cash Flow Hedges [Member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,832,572	2,073,971
Cash Flow Hedges [Member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		125,747	517,254
Cash Flow Hedges [Member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		469,437	355,259
Cash Flow Hedges [Member] | Loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,370,808	2,025,604
Cash Flow Hedges [Member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		48,000	48,000
Cash Flow Hedges [Member] | Time deposits [member]
Disclosure of detailed information about hedged items [line items]
Notional value		411,341	227,825
Cash Flow Hedges [Member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value			173,683
Cash Flow Hedges [Member] | Interbank loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		554,628	471,372
Cash Flow Hedges [Member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 42,979	2,355,502	2,717,032
Cash Flow Hedges [Member] | 1 year [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		2,275,939	2,073,971
Cash Flow Hedges [Member] | 1 year [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		47,155	444,488
Cash Flow Hedges [Member] | 1 year [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		32,408	198,573
Cash Flow Hedges [Member] | 1 year [member] | Loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		1,804,079	2,015,643
Cash Flow Hedges [Member] | 1 year [member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		5,000
Cash Flow Hedges [Member] | 1 year [member] | Time deposits [member]
Disclosure of detailed information about hedged items [line items]
Notional value		27,408	129,100
Cash Flow Hedges [Member] | 1 year [member] | Current bonds [member]
Disclosure of detailed information about hedged items [line items]
Notional value			173,683
Cash Flow Hedges [Member] | 1 year [member] | Interbank loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		476,036	398,606
Cash Flow Hedges [Member] | 1 - 3 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		609,729	89,988
Cash Flow Hedges [Member] | 1 - 3 years [member] | Forward Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		556,633
Cash Flow Hedges [Member] | 1 - 3 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		53,096	89,988
Cash Flow Hedges [Member] | 1 - 3 years [member] | Loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		566,729	9,961
Cash Flow Hedges [Member] | 1 - 3 years [member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		43,000	28,000
Cash Flow Hedges [Member] | 1 - 3 years [member] | Time deposits [member]
Disclosure of detailed information about hedged items [line items]
Notional value			52,027
Cash Flow Hedges [Member] | 3 to 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		421,225	92,766
Cash Flow Hedges [Member] | 3 to 6 years [member] | Currency Swap Contract [Member]
Disclosure of detailed information about hedged items [line items]
Notional value		78,592	72,766
Cash Flow Hedges [Member] | 3 to 6 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		342,633	20,000
Cash Flow Hedges [Member] | 3 to 6 years [member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value			20,000
Cash Flow Hedges [Member] | 3 to 6 years [member] | Time deposits [member]
Disclosure of detailed information about hedged items [line items]
Notional value		342,633
Cash Flow Hedges [Member] | 3 to 6 years [member] | Interbank loans [member]
Disclosure of detailed information about hedged items [line items]
Notional value		78,592	72,766
Cash Flow Hedges [Member] | Over 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		41,300	46,698
Cash Flow Hedges [Member] | Over 6 years [member] | Interest rate swap [member]
Disclosure of detailed information about hedged items [line items]
Notional value		41,300	46,698
Cash Flow Hedges [Member] | Over 6 years [member] | Time deposits [member]
Disclosure of detailed information about hedged items [line items]
Notional value		$ 41,300	$ 46,698

Financial Derivative Contrac_10

Financial Derivative Contracts and Hedge Accounting - Schedule of Forecasted Cash Flows by Interest Rate Risk, Cash Flow Hedges (Detail) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value		$ 2,666,521	$ 1,443,649
Cash Flow Hedges [Member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 42,979	3,427,756	2,946,484
Cash Flow Hedges [Member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 42,979	2,355,502	2,717,032
Cash Flow Hedges [Member] | 1 - 3 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		609,729	89,988
Cash Flow Hedges [Member] | 3 to 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		421,225	92,766
Cash Flow Hedges [Member] | Over 6 years [member]
Disclosure of detailed information about hedged items [line items]
Notional value		41,300	46,698
Interest rate risk [member] | Cash Flow Hedges [Member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(449,586)	1,995,292
Interest rate risk [member] | Cash Flow Hedges [Member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		449,586	(1,995,292)
Interest rate risk [member] | Cash Flow Hedges [Member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		67,227	2,018,665
Interest rate risk [member] | Cash Flow Hedges [Member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		516,813	23,373
Interest rate risk [member] | Cash Flow Hedges [Member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(516,813)	(23,373)
Interest rate risk [member] | Cash Flow Hedges [Member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(67,227)	(2,018,665)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(441,567)	1,837,656
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		441,567	(1,837,656)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		43,430	1,848,702
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		484,997	11,046
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(484,997)	(11,046)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 year [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(43,430)	(1,848,702)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		6,182	165,645
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(6,182)	(165,645)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		23,797	169,442
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		17,615	3,797
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(17,615)	(3,797)
Interest rate risk [member] | Cash Flow Hedges [Member] | 1 - 3 years [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(23,797)	(169,442)
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(13,260)	(5,172)
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		13,260	5,172
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Inflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value			521
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		13,260	5,693
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(13,260)	(5,693)
Interest rate risk [member] | Cash Flow Hedges [Member] | 3 to 6 years [member] | Outflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value			(521)
Interest rate risk [member] | Cash Flow Hedges [Member] | Over 6 years [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		(941)	(2,837)
Interest rate risk [member] | Cash Flow Hedges [Member] | Over 6 years [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		941	2,837
Interest rate risk [member] | Cash Flow Hedges [Member] | Over 6 years [member] | Inflows [member] | Increase (decrease) in hedging instrument [member]
Disclosure of detailed information about hedged items [line items]
Notional value		941	2,837
Interest rate risk [member] | Cash Flow Hedges [Member] | Over 6 years [member] | Outflows [member] | Increase (decrease) in hedged items [member]
Disclosure of detailed information about hedged items [line items]
Notional value		$ (941)	$ (2,837)

Financial Derivative Contrac_11

Financial Derivative Contracts and Hedge Accounting - Schedule of Effective Portion Generated by Cash Flow Derivatives Recorded in Statement of Changes in Equity (Detail) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion	$ 3,065	$ (6,792)	$ 11,289
Ineffective Portion		(144)	(416)
Loans [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion		(3,698)	13,963
Ineffective Portion		(516)	2,032
Commercial loans [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion		1,135	1,270
Ineffective Portion		289	270
Time deposits [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion		(4,275)	(158)
Ineffective Portion		91
Current bonds [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion			(3,829)
Ineffective Portion			(2,718)
Interbank loans [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effective Portion		(3,019)	$ 43
Ineffective Portion		$ (8)

Financial Derivative Contrac_12

Financial Derivative Contracts and Hedge Accounting - Schedule of the Income Generated by Cash Flow Hedge Derivatives (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effect of reclassification adjustments on cash flow hedges	$ 789	$ 200
Time deposits [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Effect of reclassification adjustments on cash flow hedges	$ 789	$ 200

Financial Derivative Contrac_13

Financial Derivative Contracts and Hedge Accounting - Additional Information (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about hedged items [line items]
Gain or loss of the hedging instrument, effective recongnized in equity	$ 47,292	$ 16,159	$ (4,735)
Hedges of net investment in foreign operations [member]
Disclosure of detailed information about hedged items [line items]
Gain or loss of the hedging instrument, effective recongnized in equity	$ (10,756)	$ 21,657	$ 47,454

Financial Derivative Contrac_14

Financial Derivative Contracts and Hedge Accounting - Gains or Losses on Hedge of Net Investment in Foreign Operations that have been Recognized in Other Comprehensive Income and Accumulated in Equity (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about hedges [line items]
Beginning balance	$ 16,159	$ (4,735)
Gains (losses) on hedge of net investment in foreign operation, before tax	(46,786)	(36,533)	$ 49,197
Ending balances	47,292	16,159	(4,735)
Hedges of net investment in foreign operations [member]
Disclosure of detailed information about hedges [line items]
Beginning balance	21,657	47,454
Gains (losses) on hedge of net investment in foreign operation, before tax	(46,786)	(35,338)
Income tax relating to hedges of net investment in foreign operations	14,373	9,541
Ending balances	$ (10,756)	$ 21,657	$ 47,454

Financial Derivative Contrac_15

Financial Derivative Contracts and Hedge Accounting - Schedule of Hedge Net Investment in Itau Corpbanca Colombia (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about hedged items [line items]
Effective Portion	$ (46,786)	$ (36,533)
Foreign currency forwards [member]
Disclosure of detailed information about hedged items [line items]
Effective Portion	(46,786)	(36,533)
1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,666,521	1,443,649
1 year [member] | Foreign currency forwards [member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,666,521	1,443,649
New York Branch [member]
Disclosure of detailed information about hedged items [line items]
Effective Portion	(35,744)	(26,179)
New York Branch [member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	2,360,798	1,326,934
Colombia Branch [member]
Disclosure of detailed information about hedged items [line items]
Effective Portion	(11,042)	(10,354)
Colombia Branch [member] | 1 year [member]
Disclosure of detailed information about hedged items [line items]
Notional value	$ 305,723	$ 116,715

Interbank Loans - Schedule of I

Interbank Loans - Schedule of Interbank Loans, Net (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Loans and receivables from banks	$ 56,396	$ 341,244
IFRS9 [member]
Disclosure of financial assets [line items]
Allowances for loans losses	(914,627)	(804,118)
IFRS9 [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Allowances for loans losses	(239)	(463)
IFRS9 [member] | Foreign Banks [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Allowances for loans losses	(239)	(463)
Loans and receivables from banks	56,396	101,194
IFRS9 [member] | Bank central of chile [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Loans and receivables from banks		240,050
IFRS9 [member] | Inter banks cash loans [member] | Foreign Banks [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Loans and receivables from banks	37,048	30,507
IFRS9 [member] | Loans to foreign banks [member] | Foreign Banks [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Loans and receivables from banks	755	5,594
IFRS9 [member] | Non transferrable deposits with foreign banks [member] | Foreign Banks [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Loans and receivables from banks	$ 18,832	65,556
IFRS9 [member] | Deposits in the central bank of chile [member] | Bank central of chile [member] | Interbank loans [member]
Disclosure of financial assets [line items]
Loans and receivables from banks		$ 240,050
IAS 39 [member]
Disclosure of financial assets [line items]
Loans and receivables from banks			$ 70,077

Interbank Loans - Schedule of M

Interbank Loans - Schedule of Movements in Provisions and Impairment for Loans with Domestic and Foreign Banks (Detail) - IFRS9 [member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Provisions And Impairment For Loans With Domestic And Foreign Banks [line items]
Opening balance	$ 768,120	$ 740,573
Changes in the allowances
Ending balance	880,117	768,120
Interbank loans [member]
Disclosure Of Provisions And Impairment For Loans With Domestic And Foreign Banks [line items]
Opening balance	463	208
Changes in the allowances
- Transfer to stage 1	0	0
- Transfer to stage 2	0	0
- Transfer to stage 3	0	0
- Increases due to change in credit risk	0	0
- Decreases due to change in credit risk	0	0
- Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
Charge-offs	0	0
New financial assets originated or purchased	316	344
Financial assets that have been derecognised	(574)	(131)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	34	42
Ending balance	239	463
Interbank loans [member] | Stage 1 12-Month ECL [member]
Disclosure Of Provisions And Impairment For Loans With Domestic And Foreign Banks [line items]
Opening balance	463	208
Changes in the allowances
- Transfer to stage 1	0	0
- Transfer to stage 2	0	0
- Transfer to stage 3	0	0
- Increases due to change in credit risk	0	0
- Decreases due to change in credit risk	0	0
- Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
Charge-offs	0	0
New financial assets originated or purchased	316	344
Financial assets that have been derecognised	(574)	(131)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	34	42
Ending balance	239	463
Interbank loans [member] | Stage 2 Lifetime ECL [member]
Changes in the allowances
- Transfer to stage 1	0	0
- Transfer to stage 2	0	0
- Transfer to stage 3	0	0
- Increases due to change in credit risk	0	0
- Decreases due to change in credit risk	0	0
- Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
Charge-offs	0	0
Changes in models/risk parameters	0	0
Interbank loans [member] | Stage 3 Lifetime ECL [member]
Changes in the allowances
- Transfer to stage 1	0	0
- Transfer to stage 2	0	0
- Transfer to stage 3	0	0
- Increases due to change in credit risk	0	0
- Decreases due to change in credit risk	0	0
- Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
Charge-offs	0	0
Changes in models/risk parameters	$ 0	$ 0

Loans and Accounts Receivable_3

Loans and Accounts Receivable From Customers - Schedule of Composition of Loan Portfolio (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets			$ 20,143,785	$ 20,143,785
IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	$ 880,117	$ 768,120		740,573
Net carrying amount	22,254,697	20,714,370
Gross assets [member]
Disclosure of financial assets [line items]
Financial assets	23,134,814	21,482,490		20,382,605
Gross assets [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	23,134,814	21,482,490
Gross assets [member] | Individually assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	610,506	508,554		369,047
Gross assets [member] | Collectively assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	22,524,308	20,973,936		20,013,558
Allowances for loan losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	880,117	768,120
Allowances for loan losses [member] | Individually assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Allowances for loan losses [member] | Collectively assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	686,982	634,510
Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	545,199	484,707		488,535
Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	14,915,345	13,882,193
Commercial loans [member] | Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	11,870,750	11,065,601
Commercial loans [member] | Foreign trade loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	1,034,681	920,479
Commercial loans [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	143,768	124,299
Commercial loans [member] | Factoring transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	217,410	210,558
Commercial loans [member] | Student loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	635,279	625,598
Commercial loans [member] | Leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	988,907	903,047
Commercial loans [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	24,550	32,611
Commercial loans [member] | Gross assets [member]
Disclosure of financial assets [line items]
Financial assets	15,460,544	14,366,900		13,716,546
Commercial loans [member] | Gross assets [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	15,460,544	14,366,900
Commercial loans [member] | Gross assets [member] | Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	12,288,810	11,457,388
Commercial loans [member] | Gross assets [member] | Foreign trade loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	1,109,169	928,443
Commercial loans [member] | Gross assets [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	154,276	131,100
Commercial loans [member] | Gross assets [member] | Factoring transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	221,104	210,567
Commercial loans [member] | Gross assets [member] | Student loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	654,721	676,689
Commercial loans [member] | Gross assets [member] | Leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	1,005,209	928,160
Commercial loans [member] | Gross assets [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	27,255	34,553
Commercial loans [member] | Gross assets [member] | Individually assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	610,506	508,554		369,047
Commercial loans [member] | Gross assets [member] | Collectively assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	14,850,038	13,858,346		13,347,499
Commercial loans [member] | Allowances for loan losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	545,199	484,707
Commercial loans [member] | Allowances for loan losses [member] | Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	418,060	391,787
Commercial loans [member] | Allowances for loan losses [member] | Foreign trade loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	74,488	7,964
Commercial loans [member] | Allowances for loan losses [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	10,508	6,801
Commercial loans [member] | Allowances for loan losses [member] | Factoring transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	3,694	9
Commercial loans [member] | Allowances for loan losses [member] | Student loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	19,442	51,091
Commercial loans [member] | Allowances for loan losses [member] | Leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	16,302	25,113
Commercial loans [member] | Allowances for loan losses [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	2,705	1,942
Commercial loans [member] | Allowances for loan losses [member] | Individually assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Commercial loans [member] | Allowances for loan losses [member] | Individually assessed for credit losses [member] | Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	352,064	351,097
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Commercial loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	224,925	258,177
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Foreign trade loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	74,488	7,964
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	10,508	6,801
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Factoring transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	3,694	9
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Student loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	19,442	51,091
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	16,302	25,113
Commercial loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	2,705	1,942
Mortgages loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117		60,471
Mortgages loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	4,797,540	4,379,710
Mortgages loans [member] | Loans with mortgage finance bonds [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	29,891	37,892
Mortgages loans [member] | Endorsable mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	102,442	110,652
Mortgages loans [member] | Other mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	4,321,019	3,901,107
Mortgages loans [member] | Mortgage leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	323,708	307,723
Mortgages loans [member] | Other mortgage loans and receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	20,480	22,336
Mortgages loans [member] | Gross assets [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	4,876,041	4,445,827
Mortgages loans [member] | Gross assets [member] | Loans with mortgage finance bonds [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	30,269	38,364
Mortgages loans [member] | Gross assets [member] | Endorsable mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	103,850	118,668
Mortgages loans [member] | Gross assets [member] | Other mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	4,384,547	3,953,245
Mortgages loans [member] | Gross assets [member] | Mortgage leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	336,587	312,118
Mortgages loans [member] | Gross assets [member] | Other mortgage loans and receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	20,788	23,432
Mortgages loans [member] | Gross assets [member] | Collectively assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	4,876,041	4,445,827		4,152,753
Mortgages loans [member] | Allowances for loan losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117
Mortgages loans [member] | Allowances for loan losses [member] | Loans with mortgage finance bonds [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	378	472
Mortgages loans [member] | Allowances for loan losses [member] | Endorsable mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	1,408	8,016
Mortgages loans [member] | Allowances for loan losses [member] | Other mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	63,528	52,138
Mortgages loans [member] | Allowances for loan losses [member] | Mortgage leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	12,879	4,395
Mortgages loans [member] | Allowances for loan losses [member] | Other mortgage loans and receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	308	1,096
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Loans with mortgage finance bonds [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	378	472
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Endorsable mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	1,408	8,016
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Other mutual mortgage loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	63,528	52,138
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Mortgage leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	12,879	4,395
Mortgages loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Other mortgage loans and receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	308	1,096
Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Consumer loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	2,541,812	2,452,467
Consumer loans [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	41,239	45,373
Consumer loans [member] | Installment consumer loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	1,811,312	1,766,313
Consumer loans [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	186,632	191,913
Consumer loans [member] | Credit card [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	499,743	443,141
Consumer loans [member] | Consumer leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Net carrying amount	2,886	5,727
Consumer loans [member] | Gross assets [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	2,798,229	2,669,763
Consumer loans [member] | Gross assets [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	45,599	50,716
Consumer loans [member] | Gross assets [member] | Installment consumer loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	2,005,038	1,921,785
Consumer loans [member] | Gross assets [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	206,738	209,492
Consumer loans [member] | Gross assets [member] | Credit card [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	537,741	481,567
Consumer loans [member] | Gross assets [member] | Consumer leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Financial assets	3,113	6,203
Consumer loans [member] | Gross assets [member] | Collectively assessed for credit losses [member]
Disclosure of financial assets [line items]
Financial assets	2,798,229	2,669,763		$ 2,513,306
Consumer loans [member] | Allowances for loan losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Consumer loans [member] | Allowances for loan losses [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	4,360	5,343
Consumer loans [member] | Allowances for loan losses [member] | Installment consumer loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,726	155,472
Consumer loans [member] | Allowances for loan losses [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	20,106	17,579
Consumer loans [member] | Allowances for loan losses [member] | Credit card [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	37,998	38,426
Consumer loans [member] | Allowances for loan losses [member] | Consumer leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	227	476
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Other Commercial Loans and Receivables [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	4,360	5,343
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Installment consumer loans [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,726	155,472
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Checking account debtors [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	20,106	17,579
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Credit card [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	37,998	38,426
Consumer loans [member] | Allowances for loan losses [member] | Collectively assessed for credit losses [member] | Consumer leasing transactions [member] | IFRS9 [member]
Disclosure of financial assets [line items]
Allowance for loan losses	$ 227	$ 476

Loans and Accounts Receivable_4

Loans and Accounts Receivable From Customers - Movements in Loan Portfolio disaggregated by individually and grouped assessed loans (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Beginning balance		$ 20,143,785
Commercial loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	$ 0	0
New financial assets originated or purchased	136,559	110,022
Financial assets that have been derecognized	(114,655)	(120,684)
Foreign exchange and other movements	20,589	7,018
Allowance for loan losses	545,199	484,707	$ 488,535
Mortgages loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	3,481	3,621
Financial assets that have been derecognized	(5,501)	(5,901)
Foreign exchange and other movements	855	360
Allowance for loan losses	78,501	66,117	60,471
Consumer loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	142,760
Financial assets that have been derecognized	(79,163)
Foreign exchange and other movements	4,346
Allowance for loan losses	256,417	217,296
Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490	20,382,605
- Charge-offs	(173,272)	(145,813)
New financial assets originated or purchased	7,343,332	6,328,440
Financial assets that have been derecognized	(6,055,454)	(5,314,115)
Foreign exchange and other movements	537,718	231,373
Balances as of December 31, 2018	23,134,814	21,482,490
Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900	13,716,546
- Charge-offs	(98,686)	(71,739)
New financial assets originated or purchased	5,446,411	4,695,766
Financial assets that have been derecognized	(4,763,904)	(4,179,168)
Foreign exchange and other movements	509,823	205,495
Balances as of December 31, 2018	15,460,544	14,366,900
IFRS9 [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Foreign exchange and other movements	37,787	9,977
Allowance for loan losses	880,117	768,120	$ 740,573
Net carrying amount	22,254,697	20,714,370
IFRS9 [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Net carrying amount	14,915,345	13,882,193
IFRS9 [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Net carrying amount	4,797,540	4,379,710
IFRS9 [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Net carrying amount	2,541,812	2,452,467
IFRS9 [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900
Balances as of December 31, 2018	15,460,544	14,366,900
IFRS9 [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	4,445,827
Balances as of December 31, 2018	4,876,041	4,445,827
IFRS9 [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,669,763
Balances as of December 31, 2018	2,798,229	2,669,763
IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	880,117	768,120
IFRS9 [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	545,199	484,707
IFRS9 [member] | Allowances for loan losses [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117
IFRS9 [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Individually assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	508,554	369,047
- Charge-offs	(21,841)
New financial assets originated or purchased	87,496	110,982
Financial assets that have been derecognized	(58,435)	(8,129)
Foreign exchange and other movements	48,266	36,654
Balances as of December 31, 2018	610,506	508,554
Individually assessed for credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	508,554	369,047
- Charge-offs	(21,841)
New financial assets originated or purchased	87,496	110,982
Financial assets that have been derecognized	(58,435)	(8,129)
Foreign exchange and other movements	48,266	36,654
Balances as of December 31, 2018	610,506	508,554
Individually assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Individually assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Individually assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance		39,213
- Transfer to stage 2		(39,213)
Balances as of December 31, 2018	20,807
Individually assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance		39,213
- Transfer to stage 2		(39,213)
Balances as of December 31, 2018	20,807
Individually assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	367,611	307,702
- Transfer to stage 2		39,213
- Transfer to stage 3	(116,202)
New financial assets originated or purchased	55,367	69,356
Financial assets that have been derecognized	(46,681)	(8,129)
Foreign exchange and other movements	35,734	(40,531)
Balances as of December 31, 2018	321,488	367,611
Individually assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	367,611	307,702
- Transfer to stage 2		39,213
- Transfer to stage 3	(116,202)
New financial assets originated or purchased	55,367	69,356
Financial assets that have been derecognized	(46,681)	(8,129)
Foreign exchange and other movements	35,733	(40,531)
Balances as of December 31, 2018	321,487	367,611
Individually assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	140,943	22,132
- Transfer to stage 3	116,202
- Charge-offs	(21,841)
New financial assets originated or purchased	32,129	41,626
Financial assets that have been derecognized	(11,754)
Foreign exchange and other movements	12,532	77,185
Balances as of December 31, 2018	268,211	140,943
Individually assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	140,943	22,132
- Transfer to stage 3	116,202
- Charge-offs	(21,841)
New financial assets originated or purchased	32,129	41,626
Financial assets that have been derecognized	(11,754)
Foreign exchange and other movements	12,533	77,185
Balances as of December 31, 2018	268,212	140,943
Collectively assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	20,973,936	20,013,558
- Charge-offs	(151,431)	(145,813)
New financial assets originated or purchased	7,255,836	6,217,458
Financial assets that have been derecognized	(5,997,019)	(5,305,986)
Foreign exchange and other movements	489,452	194,719
Balances as of December 31, 2018	22,524,308	20,973,936
Collectively assessed for credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	13,858,346	13,347,499
- Charge-offs	(76,845)	(71,739)
New financial assets originated or purchased	5,358,915	4,584,784
Financial assets that have been derecognized	(4,705,469)	(4,171,039)
Foreign exchange and other movements	461,557	168,841
Balances as of December 31, 2018	14,850,038	13,858,346
Collectively assessed for credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	4,445,827	4,152,753
- Charge-offs	(12,381)	(8,700)
New financial assets originated or purchased	782,870	609,384
Financial assets that have been derecognized	(412,317)	(383,683)
Foreign exchange and other movements	72,042	76,073
Balances as of December 31, 2018	4,876,041	4,445,827
Collectively assessed for credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,669,763	2,513,306
- Charge-offs	(62,205)	(65,374)
New financial assets originated or purchased	1,114,051	1,023,290
Financial assets that have been derecognized	(879,233)	(751,264)
Foreign exchange and other movements	(44,147)	(50,195)
Balances as of December 31, 2018	2,798,229	2,669,763
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	686,982	634,510
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	352,064	351,097
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	17,697,774	15,227,713
Changes in the allowances - Transfer to stage 1	392,454	465,545
- Transfer to stage 2	(749,463)	(624,014)
- Transfer to stage 3	(113,903)	(63,263)
- Charge-offs	(13,979)	(13,837)
New financial assets originated or purchased	6,487,407	5,530,053
Financial assets that have been derecognized	(5,024,522)	(4,221,649)
Foreign exchange and other movements	36,154	1,397,226
Balances as of December 31, 2018	18,691,115	17,697,774
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	11,935,270	10,143,732
Changes in the allowances - Transfer to stage 1	158,836	252,306
- Transfer to stage 2	(430,358)	(297,179)
- Transfer to stage 3	(85,689)	(38,989)
- Charge-offs	(654)	(248)
New financial assets originated or purchased	4,901,848	4,181,172
Financial assets that have been derecognized	(4,049,247)	(3,359,810)
Foreign exchange and other movements	36,212	1,054,286
Balances as of December 31, 2018	12,445,411	11,935,270
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	3,626,811	3,273,643
Changes in the allowances - Transfer to stage 1	112,611	104,374
- Transfer to stage 2	(174,723)	(189,936)
- Transfer to stage 3	(12,815)	(12,797)
- Charge-offs	(36)
New financial assets originated or purchased	763,342	589,959
Financial assets that have been derecognized	(330,014)	(302,784)
Foreign exchange and other movements	58,589	164,352
Balances as of December 31, 2018	4,043,765	3,626,811
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,135,693	1,810,338
Changes in the allowances - Transfer to stage 1	121,007	108,865
- Transfer to stage 2	(144,382)	(136,899)
- Transfer to stage 3	(15,399)	(11,477)
- Charge-offs	(13,289)	(13,589)
New financial assets originated or purchased	822,217	758,922
Financial assets that have been derecognized	(645,261)	(559,055)
Foreign exchange and other movements	(58,647)	178,588
Balances as of December 31, 2018	2,201,939	2,135,693
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	2,532,128	3,540,274
Changes in the allowances - Transfer to stage 1	(371,983)	(453,418)
- Transfer to stage 2	816,577	684,868
- Transfer to stage 3	(192,565)	(138,912)
- Charge-offs	(22,862)	(26,525)
New financial assets originated or purchased	583,765	501,380
Financial assets that have been derecognized	(771,046)	(871,600)
Foreign exchange and other movements	315,844	(703,939)
Balances as of December 31, 2018	2,864,199	2,532,128
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	1,428,951	2,252,265
Changes in the allowances - Transfer to stage 1	(145,228)	(245,768)
- Transfer to stage 2	454,203	319,361
- Transfer to stage 3	(113,481)	(70,966)
- Charge-offs	(1,314)	(2,739)
New financial assets originated or purchased	341,720	271,747
Financial assets that have been derecognized	(506,777)	(638,568)
Foreign exchange and other movements	293,402	(456,381)
Balances as of December 31, 2018	1,725,817	1,428,951
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	659,119	702,101
Changes in the allowances - Transfer to stage 1	(112,195)	(103,260)
- Transfer to stage 2	210,287	223,677
- Transfer to stage 3	(64,770)	(57,063)
- Charge-offs	(115)	(3)
New financial assets originated or purchased	17,230	17,008
Financial assets that have been derecognized	(62,240)	(62,366)
Foreign exchange and other movements	8,694	(60,975)
Balances as of December 31, 2018	656,010	659,119
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	444,058	585,908
Changes in the allowances - Transfer to stage 1	(114,560)	(104,390)
- Transfer to stage 2	152,087	141,830
- Transfer to stage 3	(14,314)	(10,883)
- Charge-offs	(21,433)	(23,783)
New financial assets originated or purchased	224,815	212,625
Financial assets that have been derecognized	(202,029)	(170,666)
Foreign exchange and other movements	13,748	(186,583)
Balances as of December 31, 2018	482,372	444,058
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	744,034	1,245,571
Changes in the allowances - Transfer to stage 1	(20,471)	(12,127)
- Transfer to stage 2	(67,114)	(60,854)
- Transfer to stage 3	306,468	202,175
- Charge-offs	(114,590)	(105,451)
New financial assets originated or purchased	184,664	186,025
Financial assets that have been derecognized	(201,451)	(212,737)
Foreign exchange and other movements	137,454	(498,568)
Balances as of December 31, 2018	968,994	744,034
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	494,125	951,502
Changes in the allowances - Transfer to stage 1	(13,608)	(6,538)
- Transfer to stage 2	(23,845)	(22,182)
- Transfer to stage 3	199,170	109,955
- Charge-offs	(74,877)	(68,752)
New financial assets originated or purchased	115,347	131,865
Financial assets that have been derecognized	(149,445)	(172,661)
Foreign exchange and other movements	131,943	(429,064)
Balances as of December 31, 2018	678,810	494,125
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	159,897	177,009
Changes in the allowances - Transfer to stage 1	(416)	(1,114)
- Transfer to stage 2	(35,564)	(33,741)
- Transfer to stage 3	77,585	69,860
- Charge-offs	(12,230)	(8,697)
New financial assets originated or purchased	2,298	2,417
Financial assets that have been derecognized	(20,063)	(18,533)
Foreign exchange and other movements	4,759	(27,304)
Balances as of December 31, 2018	176,266	159,897
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	90,012	117,060
Changes in the allowances - Transfer to stage 1	(6,447)	(4,475)
- Transfer to stage 2	(7,705)	(4,931)
- Transfer to stage 3	29,713	22,360
- Charge-offs	(27,483)	(28,002)
New financial assets originated or purchased	67,019	51,743
Financial assets that have been derecognized	(31,943)	(21,543)
Foreign exchange and other movements	752	(42,200)
Balances as of December 31, 2018	$ 113,918	$ 90,012

Loans and Accounts Receivable_5

Loans and Accounts Receivable from Customers - Additional Information (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Fair value of guarantees taken as percentage of assets	135.51%	136.48%
Effect on result of Portfolio purchases and sales	$ 14,588	$ 1,602
Lease receivables associated with movable assets [member]
Disclosure of financial assets [line items]
Loans and receivables from customers	628,823	436,654
Real Estate Assets [member]
Disclosure of financial assets [line items]
Loans and receivables from customers	$ 716,401	$ 809,826
Mortgages loans [member]
Disclosure of financial assets [line items]
Fair value of guarantees taken as percentage of loans and receivables	89.87%	90.10%
Loans and receivables from customers, net [member] | Net financial operating income [member]
Disclosure of financial assets [line items]
Gain (loss) on sale of loans and receivables sold	$ 8,584	$ 13,272
Loans and receivables from customers, net [member] | Adjustment to Effective Interest Rate [member]
Disclosure of financial assets [line items]
Gain (loss) on sale of loans and receivables sold	$ 9,079	$ 11,768

Loans and Accounts Receivable_6

Loans and Accounts Receivable From Customers - Summary of Movements in Loan Portfolio (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Beginning balance		$ 20,143,785
Commercial loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	$ 0	0
New financial assets originated or purchased	136,559	110,022
Financial assets that have been derecognized	(114,655)	(120,684)
Foreign exchange and other movements	20,589	7,018
Allowance for loan losses	545,199	484,707	$ 488,535
Mortgages loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	3,481	3,621
Financial assets that have been derecognized	(5,501)	(5,901)
Foreign exchange and other movements	855	360
Allowance for loan losses	78,501	66,117	60,471
Consumer loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	142,760
Financial assets that have been derecognized	(79,163)
Foreign exchange and other movements	4,346
Allowance for loan losses	256,417	217,296
Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490	20,382,605
- Charge-offs	(173,272)	(145,813)
New financial assets originated or purchased	7,343,332	6,328,440
Financial assets that have been derecognized	(6,055,454)	(5,314,115)
Foreign exchange and other movements	537,718	231,373
Balances as of December 31, 2018	23,134,814	21,482,490
Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900	13,716,546
- Charge-offs	(98,686)	(71,739)
New financial assets originated or purchased	5,446,411	4,695,766
Financial assets that have been derecognized	(4,763,904)	(4,179,168)
Foreign exchange and other movements	509,823	205,495
Balances as of December 31, 2018	15,460,544	14,366,900
IFRS9 [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Foreign exchange and other movements	37,787	9,977
Allowance for loan losses	880,117	768,120	$ 740,573
Net carrying amount	22,254,697	20,714,370
IFRS9 [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Net carrying amount	14,915,345	13,882,193
IFRS9 [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Net carrying amount	4,797,540	4,379,710
IFRS9 [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Net carrying amount	2,541,812	2,452,467
IFRS9 [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900
Balances as of December 31, 2018	15,460,544	14,366,900
IFRS9 [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	4,445,827
Balances as of December 31, 2018	4,876,041	4,445,827
IFRS9 [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,669,763
Balances as of December 31, 2018	2,798,229	2,669,763
IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	880,117	768,120
IFRS9 [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	545,199	484,707
IFRS9 [member] | Allowances for loan losses [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	78,501	66,117
IFRS9 [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	$ 256,417	$ 217,296

Loans and Accounts Receivable_7

Loans and Accounts Receivable From Customers - Schedule of Loan Portfolio Before Allowances for Loan Losses by Customer Economic (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Financial assets			$ 20,143,785	$ 20,143,785
Gross assets [member]
Disclosure of financial assets [line items]
Financial assets	$ 23,134,814	$ 21,482,490		20,382,605
Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Financial assets	15,460,544	14,366,900		$ 13,716,546
Loans and receivables from customers, net [member] | Gross assets [member]
Disclosure of financial assets [line items]
Financial assets	$ 23,134,814	$ 21,482,490
Financial assets percentage	100.00%	100.00%
Loans and receivables from customers, net [member] | Gross assets [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 17,343,198	$ 15,847,709
Loans and receivables from customers, net [member] | Gross assets [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	5,791,616	5,634,781
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 15,460,544	$ 14,366,900
Financial assets percentage	66.82%	66.88%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 11,208,359	$ 10,243,761
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	4,252,185	4,123,139
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Manufacturing [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,099,739	$ 1,097,211
Financial assets percentage	4.75%	5.11%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Manufacturing [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 988,739	$ 982,497
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Manufacturing [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	111,000	114,714
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Mining [member]
Disclosure of financial assets [line items]
Financial assets	$ 551,615	$ 677,777
Financial assets percentage	2.38%	3.16%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Mining [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 292,263	$ 424,883
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Mining [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	259,352	252,894
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Electricity, gas and water [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,125,541	$ 957,373
Financial assets percentage	4.87%	4.46%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Electricity, gas and water [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 685,749	$ 600,667
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Electricity, gas and water [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	439,792	356,706
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Agriculture and livestock [member]
Disclosure of financial assets [line items]
Financial assets	$ 483,943	$ 346,369
Financial assets percentage	2.09%	1.61%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Agriculture and livestock [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 309,648	$ 207,271
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Agriculture and livestock [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	174,295	139,098
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Forestry and wood extraction [member]
Disclosure of financial assets [line items]
Financial assets	$ 53,328	$ 29,683
Financial assets percentage	0.23%	0.14%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Forestry and wood extraction [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 48,192	$ 24,511
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Forestry and wood extraction [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	5,136	5,172
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Fishing [member]
Disclosure of financial assets [line items]
Financial assets	$ 46,902	$ 3,475
Financial assets percentage	0.20%	0.02%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Fishing [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 42,397	$ 1,945
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Fishing [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	4,505	1,530
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Transport [member]
Disclosure of financial assets [line items]
Financial assets	$ 559,271	$ 700,401
Financial assets percentage	2.42%	3.26%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Transport [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 478,737	$ 509,354
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Transport [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	80,534	191,047
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Communications [member]
Disclosure of financial assets [line items]
Financial assets	$ 34,926	$ 86,077
Financial assets percentage	0.15%	0.40%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Communications [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 25,209	$ 23,886
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Communications [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	9,717	62,191
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Construction [member]
Disclosure of financial assets [line items]
Financial assets	$ 2,106,829	$ 1,746,626
Financial assets percentage	9.11%	8.13%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Construction [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,757,874	$ 1,436,096
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Construction [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	348,955	310,530
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Commerce [member]
Disclosure of financial assets [line items]
Financial assets	$ 2,129,179	$ 1,620,108
Financial assets percentage	9.20%	7.54%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Commerce [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,439,969	$ 861,291
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Commerce [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	689,210	758,817
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Services [member]
Disclosure of financial assets [line items]
Financial assets	$ 3,944,571	$ 3,872,060
Financial assets percentage	17.05%	18.02%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Services [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 2,864,307	$ 2,735,023
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Services [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	1,080,264	1,137,037
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Others [member]
Disclosure of financial assets [line items]
Financial assets	$ 3,324,700	$ 3,229,740
Financial assets percentage	14.37%	15.03%
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Others [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 2,275,275	$ 2,436,337
Loans and receivables from customers, net [member] | Gross assets [member] | Commercial loans [member] | Others [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	1,049,425	793,403
Loans and receivables from customers, net [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 4,876,041	$ 4,445,827
Financial assets percentage	21.08%	20.70%
Loans and receivables from customers, net [member] | Gross assets [member] | Mortgages loans [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 4,211,094	$ 3,852,962
Loans and receivables from customers, net [member] | Gross assets [member] | Mortgages loans [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	664,947	592,865
Loans and receivables from customers, net [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 2,798,229	$ 2,669,763
Financial assets percentage	12.10%	12.43%
Loans and receivables from customers, net [member] | Gross assets [member] | Consumer loans [member] | Local loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 1,923,745	$ 1,750,986
Loans and receivables from customers, net [member] | Gross assets [member] | Consumer loans [member] | Foreign loans [member]
Disclosure of financial assets [line items]
Financial assets	$ 874,484	$ 918,777

Loans and Accounts Receivable_8

Loans and Accounts Receivable From Customers - Movements in Loan Portfolio disaggregated by individually and grouped assessed loans - Commercial loans (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Beginning balance		$ 20,143,785
Commercial loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	$ 0	0
New financial assets originated or purchased	136,559	110,022
Financial assets that have been derecognized	(114,655)	(120,684)
Foreign exchange and other movements	20,589	7,018
Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490	20,382,605
- Charge-offs	(173,272)	(145,813)
New financial assets originated or purchased	7,343,332	6,328,440
Financial assets that have been derecognized	(6,055,454)	(5,314,115)
Foreign exchange and other movements	537,718	231,373
Balances as of December 31, 2018	23,134,814	21,482,490
Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900	13,716,546
- Charge-offs	(98,686)	(71,739)
New financial assets originated or purchased	5,446,411	4,695,766
Financial assets that have been derecognized	(4,763,904)	(4,179,168)
Foreign exchange and other movements	509,823	205,495
Balances as of December 31, 2018	15,460,544	14,366,900
IFRS9 [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Foreign exchange and other movements	37,787	9,977
IFRS9 [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	14,366,900
Balances as of December 31, 2018	15,460,544	14,366,900
Individually assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	508,554	369,047
- Charge-offs	(21,841)
New financial assets originated or purchased	87,496	110,982
Financial assets that have been derecognized	(58,435)	(8,129)
Net transfer from (to) group assessed	46,466
Foreign exchange and other movements	48,266	36,654
Balances as of December 31, 2018	610,506	508,554
Individually assessed for credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	508,554	369,047
- Charge-offs	(21,841)
New financial assets originated or purchased	87,496	110,982
Financial assets that have been derecognized	(58,435)	(8,129)
Net transfer from (to) group assessed	46,466
Foreign exchange and other movements	48,266	36,654
Balances as of December 31, 2018	610,506	508,554
Individually assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance		39,213
- Transfer to stage 2		(39,213)
Net transfer from (to) group assessed	20,807
Balances as of December 31, 2018	20,807
Individually assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance		39,213
- Transfer to stage 2		(39,213)
Net transfer from (to) group assessed	20,807
Balances as of December 31, 2018	20,807
Individually assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	367,611	307,702
- Transfer to stage 2		39,213
- Transfer to stage 3	(116,202)
New financial assets originated or purchased	55,367	69,356
Financial assets that have been derecognized	(46,681)	(8,129)
Net transfer from (to) group assessed	25,659
Foreign exchange and other movements	35,734	(40,531)
Balances as of December 31, 2018	321,488	367,611
Individually assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	367,611	307,702
- Transfer to stage 2		39,213
- Transfer to stage 3	(116,202)
New financial assets originated or purchased	55,367	69,356
Financial assets that have been derecognized	(46,681)	(8,129)
Net transfer from (to) group assessed	25,659
Foreign exchange and other movements	35,733	(40,531)
Balances as of December 31, 2018	321,487	367,611
Individually assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	140,943	22,132
- Transfer to stage 3	116,202
- Charge-offs	(21,841)
New financial assets originated or purchased	32,129	41,626
Financial assets that have been derecognized	(11,754)
Foreign exchange and other movements	12,532	77,185
Balances as of December 31, 2018	268,211	140,943
Individually assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	140,943	22,132
- Transfer to stage 3	116,202
- Charge-offs	(21,841)
New financial assets originated or purchased	32,129	41,626
Financial assets that have been derecognized	(11,754)
Foreign exchange and other movements	12,533	77,185
Balances as of December 31, 2018	268,212	140,943
Collectively assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	20,973,936	20,013,558
- Charge-offs	(151,431)	(145,813)
New financial assets originated or purchased	7,255,836	6,217,458
Financial assets that have been derecognized	(5,997,019)	(5,305,986)
Net transfer from (to) group assessed	(46,466)
Foreign exchange and other movements	489,452	194,719
Balances as of December 31, 2018	22,524,308	20,973,936
Collectively assessed for credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	13,858,346	13,347,499
- Charge-offs	(76,845)	(71,739)
New financial assets originated or purchased	5,358,915	4,584,784
Financial assets that have been derecognized	(4,705,469)	(4,171,039)
Net transfer from (to) group assessed	(46,466)
Foreign exchange and other movements	461,557	168,841
Balances as of December 31, 2018	14,850,038	13,858,346
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	17,697,774	15,227,713
Changes in the allowances - Transfer to stage 1	392,454	465,545
- Transfer to stage 2	(749,463)	(624,014)
- Transfer to stage 3	(113,903)	(63,263)
- Charge-offs	(13,979)	(13,837)
New financial assets originated or purchased	6,487,407	5,530,053
Financial assets that have been derecognized	(5,024,522)	(4,221,649)
Net transfer from (to) group assessed	(20,807)
Foreign exchange and other movements	36,154	1,397,226
Balances as of December 31, 2018	18,691,115	17,697,774
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	11,935,270	10,143,732
Changes in the allowances - Transfer to stage 1	158,836	252,306
- Transfer to stage 2	(430,358)	(297,179)
- Transfer to stage 3	(85,689)	(38,989)
- Charge-offs	(654)	(248)
New financial assets originated or purchased	4,901,848	4,181,172
Financial assets that have been derecognized	(4,049,247)	(3,359,810)
Net transfer from (to) group assessed	(20,807)
Foreign exchange and other movements	36,212	1,054,286
Balances as of December 31, 2018	12,445,411	11,935,270
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	2,532,128	3,540,274
Changes in the allowances - Transfer to stage 1	(371,983)	(453,418)
- Transfer to stage 2	816,577	684,868
- Transfer to stage 3	(192,565)	(138,912)
- Charge-offs	(22,862)	(26,525)
New financial assets originated or purchased	583,765	501,380
Financial assets that have been derecognized	(771,046)	(871,600)
Net transfer from (to) group assessed	(25,659)
Foreign exchange and other movements	315,844	(703,939)
Balances as of December 31, 2018	2,864,199	2,532,128
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	1,428,951	2,252,265
Changes in the allowances - Transfer to stage 1	(145,228)	(245,768)
- Transfer to stage 2	454,203	319,361
- Transfer to stage 3	(113,481)	(70,966)
- Charge-offs	(1,314)	(2,739)
New financial assets originated or purchased	341,720	271,747
Financial assets that have been derecognized	(506,777)	(638,568)
Net transfer from (to) group assessed	(25,659)
Foreign exchange and other movements	293,402	(456,381)
Balances as of December 31, 2018	1,725,817	1,428,951
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	744,034	1,245,571
Changes in the allowances - Transfer to stage 1	(20,471)	(12,127)
- Transfer to stage 2	(67,114)	(60,854)
- Transfer to stage 3	306,468	202,175
- Charge-offs	(114,590)	(105,451)
New financial assets originated or purchased	184,664	186,025
Financial assets that have been derecognized	(201,451)	(212,737)
Foreign exchange and other movements	137,454	(498,568)
Balances as of December 31, 2018	968,994	744,034
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Beginning balance	494,125	951,502
Changes in the allowances - Transfer to stage 1	(13,608)	(6,538)
- Transfer to stage 2	(23,845)	(22,182)
- Transfer to stage 3	199,170	109,955
- Charge-offs	(74,877)	(68,752)
New financial assets originated or purchased	115,347	131,865
Financial assets that have been derecognized	(149,445)	(172,661)
Foreign exchange and other movements	131,943	(429,064)
Balances as of December 31, 2018	$ 678,810	$ 494,125

Loans and Accounts Receivable_9

Loans and Accounts Receivable From Customers - Movements in Loan Portfolio disaggregated by individually and grouped assessed loans - Mortgage loans (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Beginning balance		$ 20,143,785
Mortgages loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	$ 0	0
New financial assets originated or purchased	3,481	3,621
Financial assets that have been derecognized	(5,501)	(5,901)
Foreign exchange and other movements	855	360
Allowance for loan losses	78,501	66,117	$ 60,471
Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490	20,382,605
- Charge-offs	(173,272)	(145,813)
New financial assets originated or purchased	7,343,332	6,328,440
Financial assets that have been derecognized	(6,055,454)	(5,314,115)
Foreign exchange and other movements	537,718	231,373
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Foreign exchange and other movements	37,787	9,977
Allowance for loan losses	880,117	768,120	$ 740,573
Net carrying amount	22,254,697	20,714,370
IFRS9 [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Net carrying amount	4,797,540	4,379,710
IFRS9 [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	4,445,827
Balances as of December 31, 2018	4,876,041	4,445,827
Collectively assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	20,973,936	20,013,558
- Charge-offs	(151,431)	(145,813)
New financial assets originated or purchased	7,255,836	6,217,458
Financial assets that have been derecognized	(5,997,019)	(5,305,986)
Foreign exchange and other movements	489,452	194,719
Balances as of December 31, 2018	22,524,308	20,973,936
Collectively assessed for credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	4,445,827	4,152,753
- Charge-offs	(12,381)	(8,700)
New financial assets originated or purchased	782,870	609,384
Financial assets that have been derecognized	(412,317)	(383,683)
Foreign exchange and other movements	72,042	76,073
Balances as of December 31, 2018	4,876,041	4,445,827
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	17,697,774	15,227,713
Changes in the allowances - Transfer to stage 1	392,454	465,545
- Transfer to stage 2	(749,463)	(624,014)
- Transfer to stage 3	(113,903)	(63,263)
- Charge-offs	(13,979)	(13,837)
New financial assets originated or purchased	6,487,407	5,530,053
Financial assets that have been derecognized	(5,024,522)	(4,221,649)
Foreign exchange and other movements	36,154	1,397,226
Balances as of December 31, 2018	18,691,115	17,697,774
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	3,626,811	3,273,643
Changes in the allowances - Transfer to stage 1	112,611	104,374
- Transfer to stage 2	(174,723)	(189,936)
- Transfer to stage 3	(12,815)	(12,797)
- Charge-offs	(36)
New financial assets originated or purchased	763,342	589,959
Financial assets that have been derecognized	(330,014)	(302,784)
Foreign exchange and other movements	58,589	164,352
Balances as of December 31, 2018	4,043,765	3,626,811
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	2,532,128	3,540,274
Changes in the allowances - Transfer to stage 1	(371,983)	(453,418)
- Transfer to stage 2	816,577	684,868
- Transfer to stage 3	(192,565)	(138,912)
- Charge-offs	(22,862)	(26,525)
New financial assets originated or purchased	583,765	501,380
Financial assets that have been derecognized	(771,046)	(871,600)
Foreign exchange and other movements	315,844	(703,939)
Balances as of December 31, 2018	2,864,199	2,532,128
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	659,119	702,101
Changes in the allowances - Transfer to stage 1	(112,195)	(103,260)
- Transfer to stage 2	210,287	223,677
- Transfer to stage 3	(64,770)	(57,063)
- Charge-offs	(115)	(3)
New financial assets originated or purchased	17,230	17,008
Financial assets that have been derecognized	(62,240)	(62,366)
Foreign exchange and other movements	8,694	(60,975)
Balances as of December 31, 2018	656,010	659,119
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	744,034	1,245,571
Changes in the allowances - Transfer to stage 1	(20,471)	(12,127)
- Transfer to stage 2	(67,114)	(60,854)
- Transfer to stage 3	306,468	202,175
- Charge-offs	(114,590)	(105,451)
New financial assets originated or purchased	184,664	186,025
Financial assets that have been derecognized	(201,451)	(212,737)
Foreign exchange and other movements	137,454	(498,568)
Balances as of December 31, 2018	968,994	744,034
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Beginning balance	159,897	177,009
Changes in the allowances - Transfer to stage 1	(416)	(1,114)
- Transfer to stage 2	(35,564)	(33,741)
- Transfer to stage 3	77,585	69,860
- Charge-offs	(12,230)	(8,697)
New financial assets originated or purchased	2,298	2,417
Financial assets that have been derecognized	(20,063)	(18,533)
Foreign exchange and other movements	4,759	(27,304)
Balances as of December 31, 2018	$ 176,266	$ 159,897

Loans and Accounts Receivabl_10

Loans and Accounts Receivable From Customers - Movements in Loan Portfolio disaggregated by individually and grouped assessed loans - Consumer loans (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Beginning balance		$ 20,143,785
Consumer loans [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	$ 0
New financial assets originated or purchased	142,760
Financial assets that have been derecognized	(79,163)
Foreign exchange and other movements	4,346
Allowance for loan losses	256,417	217,296
Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490	20,382,605
- Charge-offs	(173,272)	(145,813)
New financial assets originated or purchased	7,343,332	6,328,440
Financial assets that have been derecognized	(6,055,454)	(5,314,115)
Foreign exchange and other movements	537,718	231,373
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member]
Disclosure of financial assets [line items]
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Foreign exchange and other movements	37,787	9,977
Allowance for loan losses	880,117	768,120	$ 740,573
Net carrying amount	22,254,697	20,714,370
IFRS9 [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Net carrying amount	2,541,812	2,452,467
IFRS9 [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	21,482,490
Balances as of December 31, 2018	23,134,814	21,482,490
IFRS9 [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,669,763
Balances as of December 31, 2018	2,798,229	2,669,763
IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	880,117	768,120
IFRS9 [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Individually assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	508,554	369,047
- Charge-offs	(21,841)
New financial assets originated or purchased	87,496	110,982
Financial assets that have been derecognized	(58,435)	(8,129)
Foreign exchange and other movements	48,266	36,654
Balances as of December 31, 2018	610,506	508,554
Individually assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	193,135	133,610
Individually assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance		39,213
- Transfer to stage 2		(39,213)
Balances as of December 31, 2018	20,807
Individually assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	367,611	307,702
- Transfer to stage 2		39,213
- Transfer to stage 3	(116,202)
New financial assets originated or purchased	55,367	69,356
Financial assets that have been derecognized	(46,681)	(8,129)
Foreign exchange and other movements	35,734	(40,531)
Balances as of December 31, 2018	321,488	367,611
Individually assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	140,943	22,132
- Transfer to stage 3	116,202
- Charge-offs	(21,841)
New financial assets originated or purchased	32,129	41,626
Financial assets that have been derecognized	(11,754)
Foreign exchange and other movements	12,532	77,185
Balances as of December 31, 2018	268,211	140,943
Collectively assessed for credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	20,973,936	20,013,558
- Charge-offs	(151,431)	(145,813)
New financial assets originated or purchased	7,255,836	6,217,458
Financial assets that have been derecognized	(5,997,019)	(5,305,986)
Foreign exchange and other movements	489,452	194,719
Balances as of December 31, 2018	22,524,308	20,973,936
Collectively assessed for credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,669,763	2,513,306
- Charge-offs	(62,205)	(65,374)
New financial assets originated or purchased	1,114,051	1,023,290
Financial assets that have been derecognized	(879,233)	(751,264)
Foreign exchange and other movements	(44,147)	(50,195)
Balances as of December 31, 2018	2,798,229	2,669,763
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member]
Disclosure of financial assets [line items]
Allowance for loan losses	686,982	634,510
Collectively assessed for credit losses [member] | IFRS9 [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	256,417	217,296
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	17,697,774	15,227,713
Changes in the allowances - Transfer to stage 1	392,454	465,545
- Transfer to stage 2	(749,463)	(624,014)
- Transfer to stage 3	(113,903)	(63,263)
- Charge-offs	(13,979)	(13,837)
New financial assets originated or purchased	6,487,407	5,530,053
Financial assets that have been derecognized	(5,024,522)	(4,221,649)
Foreign exchange and other movements	36,154	1,397,226
Balances as of December 31, 2018	18,691,115	17,697,774
Collectively assessed for credit losses [member] | Stage1 [member] | 12-month expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	2,135,693	1,810,338
Changes in the allowances - Transfer to stage 1	121,007	108,865
- Transfer to stage 2	(144,382)	(136,899)
- Transfer to stage 3	(15,399)	(11,477)
- Charge-offs	(13,289)	(13,589)
New financial assets originated or purchased	822,217	758,922
Financial assets that have been derecognized	(645,261)	(559,055)
Foreign exchange and other movements	(58,647)	178,588
Balances as of December 31, 2018	2,201,939	2,135,693
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	2,532,128	3,540,274
Changes in the allowances - Transfer to stage 1	(371,983)	(453,418)
- Transfer to stage 2	816,577	684,868
- Transfer to stage 3	(192,565)	(138,912)
- Charge-offs	(22,862)	(26,525)
New financial assets originated or purchased	583,765	501,380
Financial assets that have been derecognized	(771,046)	(871,600)
Foreign exchange and other movements	315,844	(703,939)
Balances as of December 31, 2018	2,864,199	2,532,128
Collectively assessed for credit losses [member] | Stage 2 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	444,058	585,908
Changes in the allowances - Transfer to stage 1	(114,560)	(104,390)
- Transfer to stage 2	152,087	141,830
- Transfer to stage 3	(14,314)	(10,883)
- Charge-offs	(21,433)	(23,783)
New financial assets originated or purchased	224,815	212,625
Financial assets that have been derecognized	(202,029)	(170,666)
Foreign exchange and other movements	13,748	(186,583)
Balances as of December 31, 2018	482,372	444,058
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member]
Disclosure of financial assets [line items]
Beginning balance	744,034	1,245,571
Changes in the allowances - Transfer to stage 1	(20,471)	(12,127)
- Transfer to stage 2	(67,114)	(60,854)
- Transfer to stage 3	306,468	202,175
- Charge-offs	(114,590)	(105,451)
New financial assets originated or purchased	184,664	186,025
Financial assets that have been derecognized	(201,451)	(212,737)
Foreign exchange and other movements	137,454	(498,568)
Balances as of December 31, 2018	968,994	744,034
Collectively assessed for credit losses [member] | Stage 3 [member] | Lifetime expected credit losses [member] | Gross assets [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Beginning balance	90,012	117,060
Changes in the allowances - Transfer to stage 1	(6,447)	(4,475)
- Transfer to stage 2	(7,705)	(4,931)
- Transfer to stage 3	29,713	22,360
- Charge-offs	(27,483)	(28,002)
New financial assets originated or purchased	67,019	51,743
Financial assets that have been derecognized	(31,943)	(21,543)
Foreign exchange and other movements	752	(42,200)
Balances as of December 31, 2018	$ 113,918	$ 90,012

Loans and Accounts Receivabl_11

Loans and Accounts Receivable From Customers - Movements in Credit Risk Provisions (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	$ 768,120	$ 740,573
Net transfers to stage 1		77,796
Net transfer to stage 2		43,864
Net transfer to stage 3		(27,165)
Increases due to change in credit risk	269,348	85,755
Decreases due to change in credit risk	(111,255)	(61,965)
Charge-offs	(167,364)	(134,966)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Changes in models/risk parameters		6,149
Foreign exchange and other movements	37,787	9,977
Ending balance	880,117	768,120
Commercial loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	484,707	488,535
Net transfers to stage 1		38,322
Net transfer to stage 2		38,414
Net transfer to stage 3		(24,602)
Increases due to change in credit risk	155,464	48,452
Decreases due to change in credit risk	(55,248)	(33,923)
Charge-offs	(82,217)	(75,996)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	136,559	110,022
Financial assets that have been derecognized	(114,655)	(120,684)
Changes in models/risk parameters		6,149
Foreign exchange and other movements	20,589	7,018
Ending balance	545,199	484,707
Mortgages loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	66,117	60,471
Net transfers to stage 1		7,988
Net transfer to stage 2		4,047
Net transfer to stage 3		(2,991)
Increases due to change in credit risk	31,869	8,743
Decreases due to change in credit risk	(15,680)	(7,717)
Charge-offs	(2,640)	(2,504)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	3,481	3,621
Financial assets that have been derecognized	(5,501)	(5,901)
Foreign exchange and other movements	855	360
Ending balance	78,501	66,117
Consumer loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	217,296
Increases due to change in credit risk	94,012
Decreases due to change in credit risk	(40,327)
Charge-offs	(82,507)
Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	142,760
Financial assets that have been derecognized	(79,163)
Foreign exchange and other movements	4,346
Ending balance	256,417	217,296
Individually Evaluated [Member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	133,610	82,125
Increases due to change in credit risk	63,901	20,319
Decreases due to change in credit risk	(8,854)	(2,238)
Charge-offs	(13,891)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	19,872	23,465
Financial assets that have been derecognized	(4,976)	(35,991)
Changes in models/risk parameters	933	45,930
Foreign exchange and other movements	2,540
Ending balance	193,135	133,610
Individually Evaluated [Member] | Commercial loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	133,610	82,125
Increases due to change in credit risk	63,901	20,319
Decreases due to change in credit risk	(8,854)	(2,238)
Charge-offs	(13,891)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	19,872	23,465
Financial assets that have been derecognized	(4,976)	(35,991)
Changes in models/risk parameters	933	45,930
Foreign exchange and other movements	2,540
Ending balance	193,135	133,610
Individually Evaluated [Member] | Mortgages loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	66,117	60,471
Net transfers to stage 1		7,988
Net transfer to stage 2		4,047
Net transfer to stage 3		(2,991)
Increases due to change in credit risk	31,869	8,743
Decreases due to change in credit risk	(15,680)	(7,717)
Charge-offs	(2,640)	(2,504)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	3,481	3,621
Financial assets that have been derecognized	(5,501)	(5,901)
Foreign exchange and other movements	855	360
Ending balance	78,501	66,117
Individually Evaluated [Member] | Consumer loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	217,296
Increases due to change in credit risk	94,012
Decreases due to change in credit risk	(40,327)
Charge-offs	(82,507)
Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	142,760
Financial assets that have been derecognized	(79,163)
Foreign exchange and other movements	4,346
Ending balance	256,417	217,296
Individually Evaluated [Member] | Stage1 [member] | 12-month expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Changes due to modifications that did not result in derecognition	0	0
Individually Evaluated [Member] | Stage1 [member] | Commercial loans [member] | 12-month expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Changes due to modifications that did not result in derecognition	0	0
Individually Evaluated [Member] | Stage1 [member] | Mortgages loans [member] | 12-month expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	5,756	3,962
Net transfers to stage 1	3,316
Net transfer to stage 2	(484)	(206)
Net transfer to stage 3	(244)	(73)
Increases due to change in credit risk	530	1,203
Decreases due to change in credit risk	(4,200)	(394)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	1,347	1,639
Financial assets that have been derecognized	(605)	(399)
Foreign exchange and other movements	264	24
Ending balance	5,680	5,756
Individually Evaluated [Member] | Stage1 [member] | Consumer loans [member] | 12-month expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	70,765
Net transfers to stage 1	16,859
Net transfer to stage 2	(6,968)
Net transfer to stage 3	(3,000)
Increases due to change in credit risk	6,090
Decreases due to change in credit risk	(28,637)
Charge-offs	(955)
Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	34,990
Financial assets that have been derecognized	(25,401)
Foreign exchange and other movements	2,949
Ending balance	66,692	70,765
Individually Evaluated [Member] | Stage 2 [member] | Lifetime expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	46,153	49,389
Net transfer to stage 3	(22,642)
Increases due to change in credit risk	1,216	3,732
Decreases due to change in credit risk	(7,758)	(532)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	12,496	6,428
Financial assets that have been derecognized	(1,824)	(20,636)
Changes in models/risk parameters	933	7,772
Foreign exchange and other movements	13,426
Ending balance	42,000	46,153
Individually Evaluated [Member] | Stage 2 [member] | Commercial loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	46,153	49,389
Net transfer to stage 3	(22,642)
Increases due to change in credit risk	1,216	3,732
Decreases due to change in credit risk	(7,758)	(532)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	12,496	6,428
Financial assets that have been derecognized	(1,824)	(20,636)
Changes in models/risk parameters	933	7,772
Foreign exchange and other movements	13,426
Ending balance	42,000	46,153
Individually Evaluated [Member] | Stage 2 [member] | Mortgages loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	37,800	37,460
Net transfers to stage 1	(2,901)	5,344
Net transfer to stage 2	5,430
Net transfer to stage 3	(7,413)	(2,918)
Increases due to change in credit risk	25,837	5,921
Decreases due to change in credit risk	(8,916)	(7,002)
Charge-offs	(16)	(13)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	1,622	1,577
Financial assets that have been derecognized	(2,553)	(2,792)
Foreign exchange and other movements	182	223
Ending balance	49,072	37,800
Individually Evaluated [Member] | Stage 2 [member] | Consumer loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	84,842
Net transfers to stage 1	(12,789)
Net transfer to stage 2	12,334
Net transfer to stage 3	(11,123)
Increases due to change in credit risk	34,493
Decreases due to change in credit risk	(11,175)
Charge-offs	(7,436)
Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	54,694
Financial assets that have been derecognized	(31,601)
Foreign exchange and other movements	1,268
Ending balance	113,507	84,842
Individually Evaluated [Member] | Stage 3 [member] | Lifetime expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	87,457	32,736
Net transfer to stage 3	22,642
Increases due to change in credit risk	62,685	16,587
Decreases due to change in credit risk	(1,096)	(1,706)
Charge-offs	(13,891)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	7,376	17,037
Financial assets that have been derecognized	(3,152)	(15,355)
Changes in models/risk parameters		38,158
Foreign exchange and other movements	(10,886)
Ending balance	151,135	87,457
Individually Evaluated [Member] | Stage 3 [member] | Commercial loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	87,457	32,736
Net transfer to stage 3	22,642
Increases due to change in credit risk	62,685	16,587
Decreases due to change in credit risk	(1,096)	(1,706)
Charge-offs	(13,891)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	7,376	17,037
Financial assets that have been derecognized	(3,152)	(15,355)
Changes in models/risk parameters		38,158
Foreign exchange and other movements	(10,886)
Ending balance	151,135	87,457
Individually Evaluated [Member] | Stage 3 [member] | Mortgages loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	22,561	19,049
Net transfers to stage 1	(415)	2,644
Net transfer to stage 2	(4,946)	4,253
Net transfer to stage 3	7,657
Increases due to change in credit risk	5,502	1,619
Decreases due to change in credit risk	(2,564)	(321)
Charge-offs	(2,624)	(2,491)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	512	405
Financial assets that have been derecognized	(2,343)	(271)
Foreign exchange and other movements	409	113
Ending balance	23,749	22,561
Individually Evaluated [Member] | Stage 3 [member] | Consumer loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	61,689
Net transfers to stage 1	(4,070)
Net transfer to stage 2	(5,366)
Net transfer to stage 3	14,123
Increases due to change in credit risk	53,429
Decreases due to change in credit risk	(515)
Charge-offs	(74,116)
Changes due to modifications that did not result in derecognition	0
New financial assets originated or purchased	53,076
Financial assets that have been derecognized	(22,161)
Foreign exchange and other movements	129
Ending balance	76,218	61,689
Group [Member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	634,510	658,448
Net transfers to stage 1		77,796
Net transfer to stage 2		43,864
Net transfer to stage 3		(27,165)
Increases due to change in credit risk	205,447	65,436
Decreases due to change in credit risk	(102,401)	(59,727)
Charge-offs	(153,473)	(134,966)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	262,928	197,711
Financial assets that have been derecognized	(194,343)	(157,083)
Changes in models/risk parameters	(933)	(39,781)
Foreign exchange and other movements	35,247	9,977
Ending balance	686,982	634,510
Group [Member] | Commercial loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	351,097	406,410
Net transfers to stage 1		38,322
Net transfer to stage 2		38,414
Net transfer to stage 3		(21,602)
Increases due to change in credit risk	91,563	28,133
Decreases due to change in credit risk	(46,394)	(31,685)
Charge-offs	(68,326)	(75,996)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	116,687	86,557
Financial assets that have been derecognized	(109,679)	(84,693)
Changes in models/risk parameters	(933)	(39,781)
Foreign exchange and other movements	18,049	7,018
Ending balance	352,064	351,097
Group [Member] | Consumer loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	217,296	191,567
Net transfers to stage 1		31,486
Net transfer to stage 2		1,403
Net transfer to stage 3		(2,572)
Increases due to change in credit risk		28,560
Decreases due to change in credit risk		(20,325)
Charge-offs		(56,466)
Changes due to modifications that did not result in derecognition		0
New financial assets originated or purchased		107,533
Financial assets that have been derecognized		(66,489)
Foreign exchange and other movements		2,599
Ending balance		217,296
Group [Member] | Stage1 [member] | 12-month expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	138,492	126,230
Net transfers to stage 1	29,418
Net transfer to stage 2	(14,077)	(5,233)
Net transfer to stage 3	(5,171)	(4,354)
Increases due to change in credit risk	19,691	18,307
Decreases due to change in credit risk	(51,409)	(23,460)
Charge-offs	(983)	(21,316)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	73,009	66,074
Financial assets that have been derecognized	(49,158)	(19,950)
Changes in models/risk parameters		138
Foreign exchange and other movements	5,603	2,056
Ending balance	145,415	138,492
Group [Member] | Stage1 [member] | Commercial loans [member] | 12-month expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	61,971	63,093
Net transfers to stage 1	9,243
Net transfer to stage 2	(6,626)	(1,047)
Net transfer to stage 3	(1,927)	(3,426)
Increases due to change in credit risk	13,071	8,594
Decreases due to change in credit risk	(18,572)	(12,651)
Charge-offs	(28)	(10,983)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	36,672	27,419
Financial assets that have been derecognized	(23,152)	(10,395)
Changes in models/risk parameters		138
Foreign exchange and other movements	2,384	1,229
Ending balance	73,036	61,971
Group [Member] | Stage1 [member] | Consumer loans [member] | 12-month expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	70,765	59,175
Net transfer to stage 2		(3,980)
Net transfer to stage 3		(855)
Increases due to change in credit risk		8,510
Decreases due to change in credit risk		(10,415)
Charge-offs		(10,333)
Changes due to modifications that did not result in derecognition		0
New financial assets originated or purchased		37,016
Financial assets that have been derecognized		(9,156)
Foreign exchange and other movements		803
Ending balance		70,765
Group [Member] | Stage 2 [member] | Lifetime expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	232,447	248,129
Net transfers to stage 1	(23,245)	36,325
Net transfer to stage 2	28,023
Net transfer to stage 3	(29,876)	(22,811)
Increases due to change in credit risk	80,613	18,459
Decreases due to change in credit risk	(39,540)	(27,162)
Charge-offs	(7,631)	(18,559)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	91,324	54,568
Financial assets that have been derecognized	(62,668)	(58,405)
Changes in models/risk parameters	(933)	(1,761)
Foreign exchange and other movements	(8,217)	3,664
Ending balance	260,297	232,447
Group [Member] | Stage 2 [member] | Commercial loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	109,805	131,854
Net transfers to stage 1	(7,555)	14,148
Net transfer to stage 2	10,260
Net transfer to stage 3	(11,340)	(18,176)
Increases due to change in credit risk	32,280	6,716
Decreases due to change in credit risk	(19,449)	(10,713)
Charge-offs	(179)	(7,447)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	35,008	16,594
Financial assets that have been derecognized	(28,514)	(23,782)
Changes in models/risk parameters	(933)	(1,761)
Foreign exchange and other movements	(9,712)	2,372
Ending balance	109,671	109,805
Group [Member] | Stage 2 [member] | Consumer loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	84,842	78,815
Net transfers to stage 1		16,833
Net transfer to stage 3		(1,717)
Increases due to change in credit risk		5,822
Decreases due to change in credit risk		(9,447)
Charge-offs		(11,099)
Changes due to modifications that did not result in derecognition		0
New financial assets originated or purchased		36,397
Financial assets that have been derecognized		(31,831)
Foreign exchange and other movements		1,069
Ending balance		84,842
Group [Member] | Stage 3 [member] | Lifetime expected credit losses [member] | IFRS9 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	263,571	284,089
Net transfers to stage 1	(6,173)	41,471
Net transfer to stage 2	(13,946)	49,097
Net transfer to stage 3	35,047
Increases due to change in credit risk	105,143	28,670
Decreases due to change in credit risk	(11,452)	(9,105)
Charge-offs	(144,859)	(95,091)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	98,595	77,069
Financial assets that have been derecognized	(82,517)	(78,728)
Changes in models/risk parameters		(38,158)
Foreign exchange and other movements	37,861	4,257
Ending balance	281,270	263,571
Group [Member] | Stage 3 [member] | Commercial loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	179,321	211,463
Net transfers to stage 1	(1,688)	24,174
Net transfer to stage 2	(3,634)	39,461
Net transfer to stage 3	13,267
Increases due to change in credit risk	46,212	12,823
Decreases due to change in credit risk	(8,373)	(8,321)
Charge-offs	(68,119)	(57,566)
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	45,007	42,544
Financial assets that have been derecognized	(58,013)	(50,516)
Changes in models/risk parameters		(38,158)
Foreign exchange and other movements	25,377	3,417
Ending balance	169,357	179,321
Group [Member] | Stage 3 [member] | Consumer loans [member] | Lifetime expected credit losses [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	$ 61,689	53,577
Net transfers to stage 1		14,653
Net transfer to stage 2		5,383
Increases due to change in credit risk		14,228
Decreases due to change in credit risk		(463)
Charge-offs		(35,034)
Changes due to modifications that did not result in derecognition		0
New financial assets originated or purchased		34,120
Financial assets that have been derecognized		(25,502)
Foreign exchange and other movements		727
Ending balance		$ 61,689

Loans and Accounts Receivabl_12

Loans and Accounts Receivable From Customers - Schedule of Detail of Loans and Receivables Sold (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Credit value	$ 14,231	$ 62,261
Provision	(14,113)	24,797
Provision	(162,874)	(124,408)
Sale value	6,329	25,794
Adjustment to EIR	(207)
Results to be deferred	560,645	550,844
Results recognized in the year	6,004	(11,670)
Current portfolio [member]
Disclosure of financial assets [line items]
Credit value	14,231	62,261
Provision	(14,113)	24,797
Sale value	4,130	24,662
Adjustment to EIR	(207)
Results recognized in the year	3,805	(12,802)
Charge-offs [member]
Disclosure of financial assets [line items]
Sale value	2,199	1,132
Results recognized in the year	2,199	1,132
CAE portfolio [member]
Disclosure of financial assets [line items]
Credit value	103,201	95,521
Provision	(849)	(119)
Sale value	120,015	120,442
Adjustment to EIR	9,079	11,768
Results recognized in the year	$ 8,584	$ 13,272

Loans and Accounts Receivabl_13

Loans and Accounts Receivable From Customers - Schedule of Cash Flows to be Received from Finance Lease Contracts (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Total finance leasing contracts	$ 1,905,554	$ 1,797,324
Unearned income finance leasing contracts	560,645	550,844
Net finance leasing contracts	1,344,909	1,246,481
Up to one month [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	13,793	29,177
Unearned income finance leasing contracts	7	1,310
Net finance leasing contracts	13,786	27,867
1 - 3 months [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	4,033	31,278
Unearned income finance leasing contracts	54	2,636
Net finance leasing contracts	3,979	28,642
3 months to 1 year [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	39,184	116,526
Unearned income finance leasing contracts	1,839	10,621
Net finance leasing contracts	37,345	105,905
1 - 3 years [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	263,280	257,976
Unearned income finance leasing contracts	23,286	31,491
Net finance leasing contracts	239,994	226,485
3 to 6 years [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	413,066	28,492
Unearned income finance leasing contracts	71,543	54,922
Net finance leasing contracts	341,523	229,998
More than 6 years [member]
Disclosure of financial assets [line items]
Total finance leasing contracts	1,172,198	1,077,447
Unearned income finance leasing contracts	463,916	449,864
Net finance leasing contracts	$ 708,282	$ 627,584

Loans and Accounts Receivabl_14

Loans and Accounts Receivable From Customers - Schedule of Cash Flows to be Received from Finance Lease Contracts Other (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Net finance leasing contracts	$ 1,344,909	$ 1,246,481
Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Net finance leasing contracts	1,344,909	1,246,481
Loans and receivables from customers, net [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Net finance leasing contracts	1,005,209	928,160
Loans and receivables from customers, net [member] | Mortgages loans [member]
Disclosure of financial assets [line items]
Net finance leasing contracts	336,587	312,118
Loans and receivables from customers, net [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Net finance leasing contracts	$ 3,113	$ 6,203

Investment Instruments - Detail

Investment Instruments - Detail of Investment Instruments Measured at FVOCI (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	$ 3,598,890	$ 2,657,154
Financial instruments at amortized cost	115,658	198,923
Debt And Equity Instrument [Member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	3,598,890	2,657,154
Financial instruments at amortized cost	115,658	198,923
Total	3,714,548	2,856,077
Equity Instrument [Member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	10,676	12,357
Total	10,676	12,357
IFRS9 [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	3,588,214	2,644,797
Financial instruments at amortized cost	115,658	198,923
Total	3,703,872	2,843,720
IFRS9 [member] | Debt Instrument [Member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	3,588,214	2,644,797
Financial instruments at amortized cost	115,658	198,923
Total	$ 3,703,872	$ 2,843,720

Investment Instruments - Deta_2

Investment Instruments - Detail of Financial Instruments Measured at FVOCI (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	$ 3,598,890	$ 2,657,154
Financial instruments at amortized cost	115,658	198,923
IFRS9 [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	3,588,214	2,644,797
Financial instruments at amortized cost	115,658	198,923
Total	3,703,872	2,843,720
IFRS9 [member] | Time deposits in local banks [member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	412,962	185,501
Total	412,962	185,501
IFRS9 [member] | Chilean mortgage finance bonds[member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	41	50
Total	41	50
IFRS9 [member] | Chilean financial institution bonds [member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	118,583
Total	118,583
IFRS9 [member] | Foreign government and central bank instruments [member] | Securities issued abroad [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	165,927	769,693
Financial instruments at amortized cost		198,923
Total	165,927	968,616
IFRS9 [member] | Other foreign investments [member] | Securities issued abroad [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	716,423	332,560
Financial instruments at amortized cost	115,658
Total	832,081	332,560
IFRS9 [member] | Chilean corporate bonds [member] | Unquoted Securities In Active Markets [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income		4,909
IFRS9 [member] | Other Financial Instruments [member] | Unquoted Securities In Active Markets [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income		4,909
Total		4,909
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	477,900	411,431
Total	477,900	411,431
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Chilean treasury bonds[member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	1,609,397	913,041
Total	1,609,397	913,041
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Other government securities [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income	86,981	27,612
Total	$ 86,981	$ 27,612

Investment Instruments - Additi

Investment Instruments - Additional Information (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Highly liquid financial instruments	$ 295,551	$ 194,412
Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Highly liquid financial instruments	266,779	$ 178,671
Financial Investments Available-for-Sale [member]
Disclosure of financial assets [line items]
Unrealized gain and (loss) total	46,033
Financial Investments Available-for-Sale [member] | Total Attributable to Equity Holders of the Bank [Member]
Disclosure of financial assets [line items]
Unrealized gain and (loss) total	38,818
Financial Investments Available-for-Sale [member] | Non controlling Interest [Member]
Disclosure of financial assets [line items]
Unrealized gain and (loss) total	$ 7,215

Investment instruments - Summar

Investment instruments - Summary of Portfolio of Debt Securities Classified as Investment Instruments at Fair Value through Other Comprehensive Income Includes Impairment (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Beginning balance		$ 20,143,785
IFRS9 [member]
Disclosure of detailed information about financial instruments [line items]
Increases due to change in credit risk	$ 269,348	85,755
Decreases due to change in credit risk	111,255	61,965
Charge-offs	(167,364)	(134,966)
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	199,319	193,074
Changes in models/risk parameters		6,149
Foreign exchange and other movements	37,787	9,977
Financial instruments credit-impaired [member] | IFRS9 [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	134	520
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	2,195	25
Financial assets that have been derecognized	19	411
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	2,310	134
Financial instruments credit-impaired [member] | IFRS9 [member] | 12-month expected credit losses [member] | Stage1 [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	134	520
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	2,195	25
Financial assets that have been derecognized	19	411
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	2,310	134
Financial instruments credit-impaired [member] | IFRS9 [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	0	0
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	0	0
Financial assets that have been derecognized	0	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	0	0
Financial instruments credit-impaired [member] | IFRS9 [member] | Lifetime expected credit losses [member] | Stage 3 [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	0	0
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	0	0
Financial assets that have been derecognized	0	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	$ 0	$ 0

Investment instruments - Summ_2

Investment instruments - Summary of Portfolio of Investment Instruments at Amortized Cost Includes Impairment (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Beginning balance		$ 20,143,785
IFRS9 [member]
Disclosure of detailed information about financial instruments [line items]
Increases due to change in credit risk	$ 269,348	85,755
Decreases due to change in credit risk	111,255	61,965
Charge-offs	(167,364)	(134,966)
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Changes in models/risk parameters		6,149
Foreign exchange and other movements	37,787	9,977
Financial Instruments At Amortised Cost Category [member] | IFRS9 [member] | Financial assets at amortised cost [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	(13)	37
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	(50)
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	24	0
Financial assets that have been derecognized	(13)	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	24	(13)
Financial Instruments At Amortised Cost Category [member] | IFRS9 [member] | 12-month expected credit losses [member] | Stage1 [member] | Financial assets at amortised cost [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	(13)	37
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	(50)
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	24	0
Financial assets that have been derecognized	(13)	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	24	(13)
Financial Instruments At Amortised Cost Category [member] | IFRS9 [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	0	0
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	0	0
Financial assets that have been derecognized	0	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	0	0
Financial Instruments At Amortised Cost Category [member] | IFRS9 [member] | Lifetime expected credit losses [member] | Stage 3 [member] | Financial assets at amortised cost [member]
Disclosure of detailed information about financial instruments [line items]
Beginning balance	0	0
Changes in the allowances - Transfer to stage 1	0	0
Transfer to stage 2	0	0
Transfer to stage 3	0	0
Increases due to change in credit risk	0	0
Decreases due to change in credit risk	0	0
Charge-offs	0	0
Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	0	0
Financial assets that have been derecognized	0	0
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	0
Balances as of December 31, 2018	$ 0	$ 0

Investment Instruments - Schedu

Investment Instruments - Schedule of Unrealized Gains and Losses on the FVTOCI Portfolio (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Acquisition cost	$ 3,552,857	$ 2,631,704
Unrealized Gains	51,804	37,344
Unrealized Losses	(5,771)	(11,894)
Fair Value	3,598,890	2,657,154
IFRS9 [member]
Disclosure of financial assets [line items]
Fair Value	3,588,214	2,644,797
IFRS9 [member] | Time deposits in local banks [member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Acquisition cost	412,936	185,468
Unrealized Gains	85	70
Unrealized Losses	(59)	(37)
Fair Value	412,962	185,501
IFRS9 [member] | Chilean mortgage finance bonds[member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Acquisition cost	40	50
Unrealized Gains	1
Fair Value	41	50
IFRS9 [member] | Chilean financial institution bonds [member] | Other Chilean securities [member]
Disclosure of financial assets [line items]
Acquisition cost	117,641
Unrealized Gains	1,008
Unrealized Losses	(66)
Fair Value	118,583
IFRS9 [member] | Foreign government and central bank instruments [member] | Securities issued abroad [member]
Disclosure of financial assets [line items]
Acquisition cost	160,481	752,791
Unrealized Gains	5,520	24,505
Unrealized Losses	(74)	(7,603)
Fair Value	165,927	769,693
IFRS9 [member] | Other foreign investments [member] | Securities issued abroad [member]
Disclosure of financial assets [line items]
Acquisition cost	697,663	329,196
Unrealized Gains	18,965	5,741
Unrealized Losses	(205)	(2,377)
Fair Value	716,423	332,560
IFRS9 [member] | Chilean corporate bonds [member] | Unquoted Securities In Active Markets [member]
Disclosure of financial assets [line items]
Acquisition cost		4,924
Unrealized Gains		5
Unrealized Losses		(20)
Fair Value		4,909
IFRS9 [member] | Unlisted securities [member] | Equity instruments [member]
Disclosure of financial assets [line items]
Acquisition cost	6,965	8,325
Unrealized Gains	3,711	4,032
Fair Value	10,676	12,357
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Chilean Central Bank Securities [member]
Disclosure of financial assets [line items]
Acquisition cost	477,127	411,223
Unrealized Gains	2,023	533
Unrealized Losses	(1,250)	(325)
Fair Value	477,900	411,431
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Chilean treasury bonds[member]
Disclosure of financial assets [line items]
Acquisition cost	1,593,550	911,596
Unrealized Gains	19,865	2,458
Unrealized Losses	(4,018)	(1,013)
Fair Value	1,609,397	913,041
IFRS9 [member] | Chilean Central Bank and Government Securities [member] | Other government securities [member]
Disclosure of financial assets [line items]
Acquisition cost	86,454	28,131
Unrealized Gains	626
Unrealized Losses	(99)	(519)
Fair Value	$ 86,981	$ 27,612

Investment Instruments - Sche_2

Investment Instruments - Schedule of Portfolio of Equity Instruments at Fair Value through Comprehensive Income (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	$ 10,676	$ 12,357
Investment in domestic entities [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	4,990	5,979
Investment in foreign entities [member] | A.C.H Colombia [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	989	799
Investment in foreign entities [member] | Redeban Multicolor S.A. [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	634	539
Investment in foreign entities [member] | Cámara De Compensación Divisas De Col. S.A. [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	270	229
Investment in foreign entities [member] | Cámara De Riesgo Central De Contraparte S.A. [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	160	132
Investment in foreign entities [member] | Servibanca - Tecnibanca [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI		1,818
Investment in foreign entities [member] | Bolsa De Valores De Colombia [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	781	466
Investment in foreign entities [member] | Credibanco [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	2,831	2,378
Investment in foreign entities [member] | Others [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Portfolio of equity instruments at FVTOCI	$ 21	$ 17

Investment Instruments - Sche_3

Investment Instruments - Schedule of Amount Recognized in Profit and Loss and Other Comprehensive Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [abstract]
Related to investments derecognised during the period	$ 35,489	$ 13,765
Related to investmentsheld at the end of the reporting period	904	1,241
Totals	$ 35,489	$ 13,765

Investment in Associates - Summ

Investment in Associates - Summary of Investments in Associates and Financial Information (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of associates [line items]
Investment amount	$ 9,605
Income	532
Assets	33,610,056	$ 29,323,338
LIABILITIES	30,283,718	25,885,778
Equity	1,862,826	1,862,826	$ 1,862,826
Income	124,522	$ 166,854	$ 62,825
Associates
Disclosure of associates [line items]
Assets	1,248,595
LIABILITIES	1,148,253
Equity	73,362
Income	$ 26,980
Nexus S.A [member]
Disclosure of associates [line items]
Entity's share	12.90%
Investment amount	$ 2,281
Income	(133)
Assets	31,147
LIABILITIES	13,472
Equity	4,097
Income	$ 13,578
Transbank S.A
Disclosure of associates [line items]
Entity's share	8.72%
Investment amount	$ 7,324
Income	665
Assets	1,217,448
LIABILITIES	1,134,781
Equity	69,265
Income	$ 13,402

Investment in Associates - Sche

Investment in Associates - Schedule of Dividends Received from Associates and Movements in Investments in Associates (Details)	12 Months Ended
	Dec. 31, 2019CLP ($)
Investments in Associates.
Dividends received	$ 268
Movements In Investments In Associate [Roll Forward]
Initial application of equity method	(9,073,000,000)
Participation in income	532,000,000
Balance as of December 31, 2019	$ 9,605,000,000

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangibles Assets (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about intangible assets [line items]
Net balance	$ 1,574,433	$ 1,570,964	$ 1,562,654
Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	1,896,374	1,828,024
Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (321,941)	$ (257,060)
Computer software [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	6 years	6 years
Remaining amortization years	3 years	3 years
Net balance	$ 179,743	$ 151,840	113,355
Computer software [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	314,200	263,179
Computer software [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (134,457)	$ (111,339)
IT projects and licenses [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	6 years	6 years
Remaining amortization years	2 years	2 years
Net balance	$ 5,192	$ 12,614	16,663
IT projects and licenses [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	33,352	42,601
IT projects and licenses [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	(28,160)	(29,987)
Assets generated in business combination [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	1,388,302	1,406,016	1,431,990
Assets generated in business combination [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	1,544,767	1,518,599
Assets generated in business combination [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	(156,465)	(112,583)
Goodwill [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	1,151,019	1,135,392	1,126,663
Goodwill [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ 1,151,019	$ 1,135,392
Trademark [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	10 years	10 years
Remaining amortization years	8 years	8 years
Net balance	$ 31,898	$ 37,002	42,106
Trademark [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	51,459	51,432
Trademark [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (19,561)	$ (14,430)
Customer relationship [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	12 years	12 years
Remaining amortization years	10 years	10 years
Net balance	$ 63,317	$ 69,259	76,038
Customer relationship [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	98,268	93,591
Customer relationship [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (34,951)	$ (24,332)
Core deposit [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	9 years	9 years
Remaining amortization years	7 years	7 years
Net balance	$ 142,068	$ 164,363	187,183
Core deposit [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	244,021	238,184
Core deposit [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (101,953)	$ (73,821)
Other intangible assets [member]
Disclosure of detailed information about intangible assets [line items]
Useful life years	10 years	10 years
Remaining amortization years	1 year	1 year
Net balance	$ 1,196	$ 494	$ 646
Other intangible assets [member] | Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	4,055	3,645
Other intangible assets [member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (2,859)	$ (3,151)

Intangible Assets - Schedule _2

Intangible Assets - Schedule of Movement of Intangible Assets (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	$ 1,570,964
Ending, balances	1,574,433	$ 1,570,964
Gross assets [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	1,828,024	1,751,814
Acquisitions	53,220	58,196
Disposals		(147)
Exchange differences	(33,831)	18,161
Others	(18,701)
Ending, balances	1,896,374	1,828,024
Gross assets [member] | Computer software [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	263,179	203,080
Acquisitions	53,140	58,085
Disposals		(147)
Exchange differences	(5,308)	2,161
Others	(7,427)
Ending, balances	314,200	263,179
Gross assets [member] | IT projects and licenses [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	42,601	42,474
Acquisitions	80	111
Exchange differences	(20)	16
Others	(9,349)
Ending, balances	33,352	42,601
Gross assets [member] | Assets generated in business combination [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	383,207	375,952
Exchange differences	(12,876)	7,255
Others	(2,335)
Ending, balances	393,748	383,207
Gross assets [member] | Goodwills [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	1,135,392	1,126,663
Exchange differences	(15,627)	8,729
Ending, balances	1,151,019	1,135,392
Gross assets [member] | Other intangible assets [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	3,645	3,645
Others	410
Ending, balances	$ 4,055	$ 3,645

Intangible Assets - Schedule _3

Intangible Assets - Schedule of Movements of Accumulated Amortization of Intangible Assets (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	$ 1,570,964
Ending, balances	1,574,433	$ 1,570,964
Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	(257,060)	(189,160)
Amortization for the year	74,140	66,158
Disposals	3
Exchange differences	(7,657)	(1,742)
Others	16,913
Ending, balances	(321,941)	(257,060)
Accumulated depreciation, amortisation and impairment [member] | Computer software [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	(111,339)	(89,725)
Amortization for the year	30,363	20,868
Disposals	3
Exchange differences	(2,995)	(746)
Others	10,237
Ending, balances	(134,457)	(111,339)
Accumulated depreciation, amortisation and impairment [member] | IT projects and licenses [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	(29,987)	(25,811)
Amortization for the year	2,809	4,164
Exchange differences	(14)	(12)
Others	4,650
Ending, balances	(28,160)	(29,987)
Accumulated depreciation, amortisation and impairment [member] | Assets generated in business combination [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	(112,583)	(70,625)
Amortization for the year	40,816	40,976
Exchange differences	(4,648)	(982)
Others	1,582
Ending, balances	(156,465)	(112,583)
Accumulated depreciation, amortisation and impairment [member] | Other projects [member]
Disclosure of detailed information about intangible assets [line items]
Beginning, balances	(3,151)	(2,999)
Amortization for the year	152	150
Exchange differences		(2)
Others	444
Ending, balances	$ (2,859)	$ (3,151)

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - CLP ($) $ 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]
Net Balance	$ 95,080	$ 95,564	$ 130,579
Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	218,461	196,474	234,272
Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	$ (123,381)	$ (100,910)	(103,693)
Land Buildings And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life years	19 years	19 years
Remaining depreciation years	14 years	14 years
Net Balance	$ 50,222	$ 43,065	83,151
Land Buildings And Equipment [member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	89,290	65,843	118,481
Land Buildings And Equipment [member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	$ (39,068)	$ (22,778)	(35,330)
Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life years	3 years	3 years
Remaining depreciation years	1 year	1 year
Net Balance	$ 27,551	$ 32,607	25,160
Equipment [member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	81,423	80,383	65,018
Equipment [member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	$ (53,872)	$ (47,776)	(39,858)
Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life years	3 years	3 years
Remaining depreciation years	2 years	2 years
Net Balance	$ 17,307	$ 19,892	22,268
Other [member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	47,748	50,248	50,773
Other [member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	(30,441)	(30,356)	(28,505)
Furniture [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	8,879	9,373	10,357
Furniture [Member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	27,088	27,440
Furniture [Member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	(18,209)	(18,067)
Leasehold improvements [member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance		28
Leasehold improvements [member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance		(28)
Others [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	8,428	10,519	$ 11,911
Others [member] | Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	20,660	22,780
Others [member] | Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Net Balance	$ (12,232)	$ (12,261)

Property, Plant and Equipment_2

Property, Plant and Equipment - Schedule of Movement of Property, Plant and Equipment (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	$ 95,564	$ 130,579
Ending, balances	95,080	95,564
Land Buildings And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	43,065	83,151
Ending, balances	50,222	43,065
Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	32,607	25,160
Ending, balances	27,551	32,607
Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	19,892	22,268
Ending, balances	17,307	19,892
Gross assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	196,474	234,272
Acquisitions	20,440	24,756
Sales and/or disposals for the year	(12,099)	(19,531)
Exchange differences	3,990	2,302
Reclassification from assets held for sale	(9,863)	(45,325)
Others	(207)
Ending, balances	218,461	196,474
Gross assets [member] | Land Buildings And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	65,843	118,481
Acquisitions	9,449	6,207
Sales and/or disposals for the year	(3,592)	(14,010)
Exchange differences	507	288
Reclassification from assets held for sale	(9,863)	(45,123)
Others	7,220
Ending, balances	89,290	65,843
Gross assets [member] | Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	80,383	65,018
Acquisitions	8,503	16,253
Sales and/or disposals for the year	(4,493)	(2,334)
Exchange differences	2,514	1,547
Reclassification from assets held for sale		(101)
Others	(5,484)
Ending, balances	81,423	80,383
Gross assets [member] | Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	50,248	50,773
Acquisitions	2,488	2,296
Sales and/or disposals for the year	(4,014)	(3,187)
Exchange differences	969	467
Reclassification from assets held for sale		(101)
Others	(1,943)
Ending, balances	$ 47,748	$ 50,248

Property, Plant and Equipment_3

Property, Plant and Equipment - Schedule of Movements of Accumulated Depreciation of Property, Plant and Equipment (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	$ 95,564	$ 130,579
Ending, balances	95,080	95,564
Land Buildings And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	43,065	83,151
Ending, balances	50,222	43,065
Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	32,607	25,160
Ending, balances	27,551	32,607
Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	19,892	22,268
Ending, balances	17,307	19,892
Accumulated Depreciation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	(100,910)	(103,693)
Depreciation for the year	(21,169)	(20,659)
Sales and/or disposals for the year	8,585	11,462
Exchange differences	(2,894)	(2,575)
Reclassification from assets held for sale	6,829	14,583
Impairment	(728)	(28)
Others	564
Ending, balances	(123,381)	(100,910)
Accumulated Depreciation [Member] | Land Buildings And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	(22,778)	(35,330)
Depreciation for the year	(7,814)	(7,833)
Sales and/or disposals for the year	2,884	6,796
Exchange differences	(79)	(883)
Reclassification from assets held for sale	6,829	14,472
Impairment	(241)
Others	(4,211)
Ending, balances	(39,068)	(22,778)
Accumulated Depreciation [Member] | Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	(47,776)	(39,858)
Depreciation for the year	(9,026)	(9,182)
Sales and/or disposals for the year	3,622	2,237
Exchange differences	(2,110)	(987)
Reclassification from assets held for sale		42
Impairment	(11)	(28)
Others	1,429
Ending, balances	(53,872)	(47,776)
Accumulated Depreciation [Member] | Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
Opening balances	(30,356)	(28,505)
Depreciation for the year	(4,329)	(3,644)
Sales and/or disposals for the year	2,079	2,429
Exchange differences	(705)	(705)
Reclassification from assets held for sale		69
Impairment	(476)
Others	3,346
Ending, balances	$ (30,441)	$ (30,356)

Property, Plant and Equipment_4

Property, Plant and Equipment - Schedule of Future Operating Lease Payments for Land, Buildings and Equipment (Detail) - Land Buildings And Equipment [member] $ in Millions	Dec. 31, 2018CLP ($)
Disclosure of detailed information about property, plant and equipment [line items]
Future Operating Lease Payments Land, Buildings and Equipment	$ 137,203
1 year [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Operating Lease Payments Land, Buildings and Equipment	23,140
Later than one year and not later than five years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Operating Lease Payments Land, Buildings and Equipment	59,171
Later than five years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Operating Lease Payments Land, Buildings and Equipment	$ 54,892

Property, Plant and Equipment_5

Property, Plant and Equipment - Future Financial Leasing Payments for Land, Buildings and Equipment (Detail) - Land Buildings And Equipment [member] $ in Millions	Dec. 31, 2018CLP ($)
Disclosure of detailed information about property, plant and equipment [line items]
Future Financial Leasing Payments Land, Buildings and Equipment	$ 236,628
1 year [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Financial Leasing Payments Land, Buildings and Equipment	9,373
Later than one year and not later than five years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Financial Leasing Payments Land, Buildings and Equipment	181,804
Later than five years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Future Financial Leasing Payments Land, Buildings and Equipment	$ 45,451

Assets for Rights-of-Use and _3

Assets for Rights-of-Use and Obligations for Lease Contracts - Schedule of Lease Agreements (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	$ 167,441	$ 176,795
Gross assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	197,255	176,795
Accumulated Depreciation [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	$ (29,814)
Land Buildings And Equipment [member]
Disclosure of quantitative information about right-of-use assets [line items]
Years of useful life	5 years
Years of average remaining useful life	5 years
Right of use assets	$ 167,265	176,795
Land Buildings And Equipment [member] | Gross assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	197,065	$ 176,795
Land Buildings And Equipment [member] | Accumulated Depreciation [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	$ (29,800)
Other leased assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Years of useful life	3 years
Years of average remaining useful life	3 years
Right of use assets	$ 176
Other leased assets [member] | Gross assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	190
Other leased assets [member] | Accumulated Depreciation [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Right of use assets	$ (14)

Assets for Rights-of-Use and _4

Assets for Rights-of-Use and Obligations for Lease Contracts - Schedule of Movement in Gross Balance for Right of Use Assets (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)
Disclosure of quantitative information about right-of-use assets [line items]
Balance as of January 01, 2019	$ 176,795
Depreciation of the period	(31,857)
Balance as of December 31, 2019	167,441
Land Buildings And Equipment [member]
Disclosure of quantitative information about right-of-use assets [line items]
Balance as of January 01, 2019	176,795
Balance as of December 31, 2019	167,265
Other leased assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Balance as of December 31, 2019	176
Gross assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Balance as of January 01, 2019	176,795
Additions of the period	25,814
Disposals due to early termination	(16,953)
Inflation indexation adjustments	9,488
Exchange rate difference	2,111
Balance as of December 31, 2019	197,255
Gross assets [member] | Land Buildings And Equipment [member]
Disclosure of quantitative information about right-of-use assets [line items]
Balance as of January 01, 2019	176,795
Additions of the period	25,624
Disposals due to early termination	(16,953)
Inflation indexation adjustments	9,488
Exchange rate difference	2,111
Balance as of December 31, 2019	197,065
Gross assets [member] | Other leased assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Additions of the period	190
Balance as of December 31, 2019	190
Accumulated Depreciation [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Depreciation of the period	(31,857)
Disposals due to early termination	2,590
Exchange rate difference	(547)
Balance as of December 31, 2019	(29,814)
Accumulated Depreciation [Member] | Land Buildings And Equipment [member]
Disclosure of quantitative information about right-of-use assets [line items]
Depreciation of the period	(31,843)
Disposals due to early termination	2,590
Exchange rate difference	(547)
Balance as of December 31, 2019	(29,800)
Accumulated Depreciation [Member] | Other leased assets [member]
Disclosure of quantitative information about right-of-use assets [line items]
Depreciation of the period	(14)
Balance as of December 31, 2019	$ (14)

Assets for Rights-of-Use and _5

Assets for Rights-of-Use and Obligations for Lease Contracts - Schedule of Lease Obligations (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
Assets for Rights-of-Use and Obligations for Lease Contracts
Totals	$ 172,924	$ 176,795

Assets for Rights-of-Use and _6

Assets for Rights-of-Use and Obligations for Lease Contracts - Schedule of Movement in Lease Liabilities and Cash Flows (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)
Assets for Rights-of-Use and Obligations for Lease Contracts
Additions due to new contracts	$ 25,624
Disposals due to early termination	(10,808)
Interest expenses	5,034
Inflation indexation adjustments	9,488
Exchange rate difference	2,868
Capital and interest payments	(36,077)
Totals	$ 172,924

Assets for Rights-of-Use and _7

Assets for Rights-of-Use and Obligations for Lease Contracts - Schedule of Future Maturities Lease Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
Disclosure of maturity analysis of operating lease payments [line items]
Totals	$ 172,924	$ 176,795
1 year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	10,193
Due within 1 and 2 Year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	9,802
2 year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	11,348
3 year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	13,286
4 year [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	7,221
Later than five years [member]
Disclosure of maturity analysis of operating lease payments [line items]
Totals	$ 121,074

Current Taxes and Deferred Ta_3

Current Taxes and Deferred Taxes - Additional Income (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [abstract]
Net provision for current taxes	$ 85,503	$ 121,938

Current Taxes and Deferred Ta_4

Current Taxes and Deferred Taxes - Schedule of Effect of Current Taxes Assets and Liabilities By Geographic Area (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [line items]
Current tax assets	$ 85,516	$ 123,129
Current tax liabilities	(13)	(1,191)
Totas, net	85,503	121,938
Chile [member]
Disclosure of geographical areas [line items]
Current tax assets	30,773	68,094
Current tax liabilities	(13)	(528)
Totas, net	30,760	67,566
Colombia [member]
Disclosure of geographical areas [line items]
Current tax assets	54,743	52,874
Current tax liabilities		(663)
Totas, net	$ 54,743	52,211
United States [member]
Disclosure of geographical areas [line items]
Current tax assets		2,161
Totas, net		$ 2,161

Current Taxes and Deferred Ta_5

Current Taxes and Deferred Taxes - Schedule of Details of Current Tax Items by Geographical Area (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [line items]
Income tax	$ (77,137)	$ (95,760)
Monthly Provisional Payment	88,839	22,968
Tax Credit for Training Costs	850	800
Tax Credit Donations	802	745
Other taxes to be recovered	72,149	193,185
Totals	85,503	121,938
Chile [member]
Disclosure of geographical areas [line items]
Income tax	(68,075)	(81,487)
Monthly Provisional Payment	61,621	21,424
Tax Credit for Training Costs	850	800
Tax Credit Donations	802	745
Other taxes to be recovered	35,562	126,084
Totals	30,760	67,566
United States [member]
Disclosure of geographical areas [line items]
Other taxes to be recovered		2,161
Totals		2,161
Colombia [member]
Disclosure of geographical areas [line items]
Income tax	(9,062)	(14,273)
Monthly Provisional Payment	27,218	1,544
Other taxes to be recovered	36,587	64,940
Totals	$ 54,743	$ 52,211

Current Taxes and Deferred Ta_6

Current Taxes and Deferred Taxes - Schedule of Nominal Tax Rates of Countries Where Consolidated Subsidiaries Located (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [line items]
Rate	27.00%	27.00%	25.50%
Chile [member]
Disclosure of geographical areas [line items]
Rate	27.00%	27.00%	25.50%
Colombia [member]
Disclosure of geographical areas [line items]
Rate	33.00%	37.00%	40.00%
United States [member]
Disclosure of geographical areas [line items]
Rate	21.00%	21.00%	35.00%

Current Taxes and Deferred Ta_7

Current Taxes and Deferred Taxes - Schedule Of Effective Tax Rate Reconciliation (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [line items]
Amount calculated by using the statutory rates	27.00%	27.00%	25.50%
Equity price level restatement for tax purposes	(13.94%)	(9.49%)	(141.93%)
Local tax for USA and Panama income	1.76%	0.02%	(98.46%)
Tax Reform USA 35%-21%			95.21%
Penalty fee SBIF		0.69%
Permanent and other differences (*)	2.26%	(3.33%)	(162.11%)
Totals	27.77%	28.67%	(531.14%)
Amount calculated by using the statutory rates	$ (46,541)	$ (63,157)	$ (2,538)
Equity price level restatement for tax purposes	24,037	22,188	14,128
Local tax for USA and Panama income	(3,030)	(54)	9,801
Tax Reform USA 35%-21%			(9,477)
Penalty fee SBIF		(1,616)
Permanent and other differences	(3,897)	7,799	16,136
Net expense for income taxes	$ (47,853)	$ (67,059)	$ 52,871
Colombia [member]
Disclosure of geographical areas [line items]
Amount calculated by using the statutory rates	33.00%	37.00%	40.00%
Exchange differences due to investments in Colombia	9.51%	13.47%	(204.84%)
Effect of rate change	(2.29%)	(0.01%)	47.07%
Effect of rates subsidiary	3.42%	0.50%	(54.55%)
Exchange differences due to investments in Colombia	$ (16,399)	$ (31,499)	$ 20,390
Effect of rate change	3,954	20	(4,685)
Effect of rates subsidiary	(5,896)	(1,173)	5,430
Net expense for income taxes	$ (14,460)	$ 18,210	$ 21,683
Chile [member]
Disclosure of geographical areas [line items]
Amount calculated by using the statutory rates	27.00%	27.00%	25.50%
Effect of rate change			(51.68%)
Effect of rate change			$ 5,144
Net expense for income taxes	$ (33,393)	$ (85,269)	$ 31,188
New York [member]
Disclosure of geographical areas [line items]
Effect of rates subsidiary	0.05%	(0.18%)	14.65%
Effect of rates subsidiary	$ (81)	$ 433	$ (1,458)

Current Taxes and Deferred Ta_8

Current Taxes and Deferred Taxes - Schedule Of Effective Tax Rate Reconciliation Other (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Itau Unibanco [member] | Colombia [member]
Disclosure of geographical areas [line items]
Tax effect of goodwill from business combinations	$ 11,276	$ 20,568

Current Taxes and Deferred Ta_9

Current Taxes and Deferred Taxes - Schedule of Deferred Taxes (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [line items]
Deferred tax assets	$ 208,657	$ 178,686
Deferred tax liabilities	(263)	(471)
Net by geographic area	208,394	178,215
Chile [member]
Disclosure of geographical areas [line items]
Deferred tax assets	182,657	130,883
Net by geographic area	182,657	130,883
United States [member]
Disclosure of geographical areas [line items]
Deferred tax assets	18,527	20,311
Net by geographic area	18,527	20,311
Colombia [member]
Disclosure of geographical areas [line items]
Deferred tax assets	7,473	27,492
Deferred tax liabilities	(263)	(471)
Net by geographic area	$ 7,210	$ 27,021

Current Taxes and Deferred T_10

Current Taxes and Deferred Taxes - Schedule Of Effect On Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income tax expense
Current tax expense	$ (77,137)	$ (95,760)	$ (19,689)
Deferred taxes
Deferred tax expenses	33,727	28,110	74,611
Subtotals	(43,410)	(67,650)	54,922
Others	(4,443)	591	(2,051)
Net expense for income taxes	$ (47,853)	$ (67,059)	$ 52,871

Current Taxes and Deferred T_11

Current Taxes and Deferred Taxes - Schedule of "OCI" that may be Reclassified Subsequent to Profit or Loss (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [abstract]
Financial instruments at fair value through other comprehensive income	$ (5,926)	$ (2,172)
Available for sale investments			$ (3,333)
Hedge of a net investment in foreign operations	14,373	10,565	(14,211)
Cash flow hedge	(162)	(1,669)	44
Total charge to other comprehensive income	8,285	6,724	(17,500)
Income tax relating to defined benefit obligation	1,542	(44)	(6)
Total charge to other comprehensive income	$ 1,542	$ (44)	$ (6)

Current Taxes and Deferred T_12

Current Taxes and Deferred Taxes - Schedule of Effects of Deferred Taxes on Assets and Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of geographical areas [line items]
Allowances for loan losses	$ 162,874	$ 124,408
Accrued interest on past due portfolio	8,214	7,377
Unearned price differences	324	288
Personnel provisions	20,618	18,065
Miscellaneous provisions	41,576	51,033
Tax losses	55,598	62,685
Net tax value of amortizable assets	16,051	14,739
Depreciation of property, plant and equipment	(47,423)	(42,581)
Lease division and others	18,925	19,261
Mark to market of financial instruments	(15,846)	(26,683)
Itaú-Corpbanca business combination	(57,996)	(61,521)
Others	4,076	11,144
IFRS 16 leases effect	1,403
Totals assets (liabilities), net	208,394	178,215
Chile [member]
Disclosure of geographical areas [line items]
Allowances for loan losses	155,115	99,621
Accrued interest on past due portfolio	8,214	7,377
Unearned price differences	324	288
Personnel provisions	16,860	13,871
Miscellaneous provisions	49,335	43,824
Tax losses	1,912	2,460
Net tax value of amortizable assets	16,051	14,739
Depreciation of property, plant and equipment	(50,746)	(37,513)
Lease division and others	11,619	9,422
Mark to market of financial instruments	(13,484)	(6,535)
Itaú-Corpbanca business combination	(16,584)	(16,613)
Others	3,136	(58)
IFRS 16 leases effect	905
Totals assets (liabilities), net	182,657	130,883
United States [member]
Disclosure of geographical areas [line items]
Allowances for loan losses	358	(4,531)
Personnel provisions	(91)	139
Miscellaneous provisions	856	3,843
Tax losses	15,750	11,034
Others	1,654	9,826
Totals assets (liabilities), net	18,527	20,311
Colombia [member]
Disclosure of geographical areas [line items]
Allowances for loan losses	7,401	29,318
Personnel provisions	3,849	4,055
Miscellaneous provisions	(8,615)	3,366
Tax losses	37,936	49,191
Depreciation of property, plant and equipment	3,323	(5,068)
Lease division and others	7,306	9,839
Mark to market of financial instruments	(2,362)	(20,148)
Itaú-Corpbanca business combination	(41,412)	(44,908)
Others	(714)	1,376
IFRS 16 leases effect	498
Totals assets (liabilities), net	$ 7,210	$ 27,021

Current Taxes and Deferred T_13

Current Taxes and Deferred Taxes - Summary of Effect for Deferred Taxes Presented Assets and Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of deferred income taxes [line items]
Allowances for loan losses	$ 162,874	$ 124,408
Accrued interest on past due portfolio	8,214	7,377
Unearned price differences	324	288
Personnel provisions	20,618	18,065
Miscellaneous provisions	41,576	51,033
Tax losses	55,598	62,685
Net tax value of amortizable assets	16,051	14,739
Depreciation of property, plant and equipment	(47,423)	(42,581)
Lease division and others	18,925	19,261
Mark to market of financial instruments	(15,846)	(26,683)
Itaú-Corpbanca business combination	(57,996)	(61,521)
Others	4,076	11,144
IFRS 16 leases effect	1,403
Totals assets (liabilities) for deferred taxes	208,394	178,215
Deferred Income Tax Assets [member]
Disclosure of deferred income taxes [line items]
Allowances for loan losses	162,874	124,408
Accrued interest on past due portfolio	8,214	7,377
Unearned price differences	324	288
Personnel provisions	20,618	18,220
Miscellaneous provisions	41,576	51,033
Tax losses	55,598	62,685
Net tax value of amortizable assets	16,051	14,739
Depreciation of property, plant and equipment	(47,423)	(42,581)
Lease division and others	18,925	19,261
Mark to market of financial instruments	(15,846)	(26,821)
Itaú-Corpbanca business combination	(57,996)	(61,521)
Others	4,339	11,598
IFRS 16 leases effect	1,403
Totals assets (liabilities) for deferred taxes	208,657	178,686
Deferred income tax liabilities [member]
Disclosure of deferred income taxes [line items]
Personnel provisions		(155)
Mark to market of financial instruments		138
Others	(263)	(454)
Totals assets (liabilities) for deferred taxes	$ (263)	$ (471)

Other Assets and Non-current _3

Other Assets and Non-current Assets Held for Sale - Schedule of Other Assets (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Assets And Non Current Assets Held For Sale [abstract]
Assets for leasing	$ 18,724	$ 33,991
Other assets	752,137	467,806
Deposits in guarantee	33,786	30,016
Accounts and notes receivable	48,017	147,248
Rights on brokerage transactions	158,687	52,361
Repossessed assets from leasing transactions	1,787	5,368
Rentals paid in advance		5,698
Prepaid expenses	21,179	19,674
Collateral for financial transactions (threshold)	407,529	155,641
Claims receivable from insurance companies	1,933	360
Asset management fees receivable	816	1,496
Insurance brokerage fees receivable	5,654	6,537
Other assets	72,749	43,407
Totals	$ 770,861	$ 501,797

Other Asset and Non-current Ass

Other Asset and Non-current Assets Held for Sale - Schedule of Non-Current Assets (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Assets And Non Current Assets Held For Sale [abstract]
Assets received in lieu of payment	$ 10,291	$ 29,060
Property, plant and equipment held for sale	6,911	30,742
Totals	$ 17,202	$ 59,802

Deposits and Other Demand Lia_3

Deposits and Other Demand Liabilities and Time Deposits - Schedule of Deposits and Other Demand Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deposits And Other Demand Liabilities [abstract]
Checking accounts	$ 2,882,535	$ 2,570,436
Other deposits and demand accounts	1,698,439	1,396,573
Advance payments received from customers	45,902	79,801
Other demand liabilities	246,572	253,665
Totals	$ 4,873,448	$ 4,300,475

Deposits and Other Demand Lia_4

Deposits and Other Demand Liabilities and Time Deposits - Schedule of Time Deposits and Other Time Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Time Deposits and Other Time Liabilities [abstract]
Time deposits	$ 11,599,943	$ 10,093,703
Time savings accounts	20,016	27,156
Other time liabilities	228	252
Totals	$ 11,620,187	$ 10,121,111

Interbank Borrowings - Schedule

Interbank Borrowings - Schedule of Interbank Borrowings (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Total	$ 2,646,756	$ 2,327,723
Loans obtained from local financial institutions [member]
Disclosure of detailed information about borrowings [line items]
Total		5,863
Loans obtained from local financial institutions [member] | Banco BTG Pactual Chile [member]
Disclosure of detailed information about borrowings [line items]
Total		5,863
Loans obtained from foreign financial institutions [member]
Disclosure of detailed information about borrowings [line items]
Total	2,646,756	2,321,860
Loans obtained from foreign financial institutions [member] | Shanghai Commercial and Savings Bank [member]
Disclosure of detailed information about borrowings [line items]
Total	279,202	2,244
Loans obtained from foreign financial institutions [member] | Standard Chartered Bank [member]
Disclosure of detailed information about borrowings [line items]
Total	229,063	68,169
Loans obtained from foreign financial institutions [member] | Citibank N.A. [member]
Disclosure of detailed information about borrowings [line items]
Total	206,549	118,975
Loans obtained from foreign financial institutions [member] | Credicorp capital SASAF [member]
Disclosure of detailed information about borrowings [line items]
Total	200,374	175,326
Loans obtained from foreign financial institutions [member] | Bank of America, N.A. [Member]
Disclosure of detailed information about borrowings [line items]
Total	160,243	153,546
Loans obtained from foreign financial institutions [member] | The Export-Import Bank of Korea [member]
Disclosure of detailed information about borrowings [line items]
Total	146,549	2,244
Loans obtained from foreign financial institutions [member] | IFC International Finance Corporation [member]
Disclosure of detailed information about borrowings [line items]
Total	118,065	145,817
Loans obtained from foreign financial institutions [member] | Banco Credito del Peru [member]
Disclosure of detailed information about borrowings [line items]
Total	104,831	90,022
Loans obtained from foreign financial institutions [member] | Bank of Montreal [Member]
Disclosure of detailed information about borrowings [line items]
Total	104,331	106,586
Loans obtained from foreign financial institutions [member] | Bank of Nova Scotia [member]
Disclosure of detailed information about borrowings [line items]
Total	101,989	65,802
Loans obtained from foreign financial institutions [member] | BNP Paribas [member]
Disclosure of detailed information about borrowings [line items]
Total	98,817	91,072
Loans obtained from foreign financial institutions [member] | BBVA Asset Management Continental S.A.Peru [member]
Disclosure of detailed information about borrowings [line items]
Total	86,709	73,481
Loans obtained from foreign financial institutions [member] | Wells Fargo Bank, N.A. [member]
Disclosure of detailed information about borrowings [line items]
Total	82,480	209,615
Loans obtained from foreign financial institutions [member] | Andean Development Corporation [member]
Disclosure of detailed information about borrowings [line items]
Total	75,149	104,273
Loans obtained from foreign financial institutions [member] | HSBC USA [member]
Disclosure of detailed information about borrowings [line items]
Total	74,877	43,214
Loans obtained from foreign financial institutions [member] | Commerzbank AG [member]
Disclosure of detailed information about borrowings [line items]
Total	71,646	75,032
Loans obtained from foreign financial institutions [member] | Other banks [member]
Disclosure of detailed information about borrowings [line items]
Total	65,252	67,288
Loans obtained from foreign financial institutions [member] | Latin American Export Bank [member]
Disclosure of detailed information about borrowings [line items]
Total	63,991	52,817
Loans obtained from foreign financial institutions [member] | Interfunds S.A. Fund Management Company [member]
Disclosure of detailed information about borrowings [line items]
Total	55,596	45,149
Loans obtained from foreign financial institutions [member] | Bancoldex S.A Colombia [member]
Disclosure of detailed information about borrowings [line items]
Total	46,390	80,394
Loans obtained from foreign financial institutions [member] | Sumitomo Mitsui Banking Corporation [member]
Disclosure of detailed information about borrowings [line items]
Total	44,826	242,883
Loans obtained from foreign financial institutions [member] | Findeter S.A - Financiera del Desarrollo Territorial [member]
Disclosure of detailed information about borrowings [line items]
Total	44,552	38,364
Loans obtained from foreign financial institutions [member] | Scotia Fondos Sociedad Administradora de Fondos S.A. [member]
Disclosure of detailed information about borrowings [line items]
Total	34,951	108,979
Loans obtained from foreign financial institutions [member] | Apple Bank for Saving [member]
Disclosure of detailed information about borrowings [line items]
Total	34,195	18,147
Loans obtained from foreign financial institutions [member] | Cobank CB [member]
Disclosure of detailed information about borrowings [line items]
Total	30,882	33,850
Loans obtained from foreign financial institutions [member] | KBC Bank NV [member]
Disclosure of detailed information about borrowings [line items]
Total	21,896
Loans obtained from foreign financial institutions [member] | Ing Bank NV [member]
Disclosure of detailed information about borrowings [line items]
Total	14,870	30,874
Loans obtained from foreign financial institutions [member] | La Caixa [member]
Disclosure of detailed information about borrowings [line items]
Total	13,961
Loans obtained from foreign financial institutions [member] | Export Development Canada [member]
Disclosure of detailed information about borrowings [line items]
Total	12,078	11,199
Loans obtained from foreign financial institutions [member] | Bank of Bogota [member]
Disclosure of detailed information about borrowings [line items]
Total	8,250	8,560
Loans obtained from foreign financial institutions [member] | China Construction Bank [member]
Disclosure of detailed information about borrowings [line items]
Total	5,556	5,155
Loans obtained from foreign financial institutions [member] | Mizuho corporate bank [member]
Disclosure of detailed information about borrowings [line items]
Total	2,411	31,763
Loans obtained from foreign financial institutions [member] | Bancaribe curacao Bank n.v. [member]
Disclosure of detailed information about borrowings [line items]
Total	2,411	12,694
Loans obtained from foreign financial institutions [member] | Bayern Landesbank [member]
Disclosure of detailed information about borrowings [line items]
Total	2,411	2,237
Loans obtained from foreign financial institutions [member] | Banco Republica [member]
Disclosure of detailed information about borrowings [line items]
Total	$ 1,403	1,805
Loans obtained from foreign financial institutions [member] | FONDOS SURA SAF S.A.C. [member]
Disclosure of detailed information about borrowings [line items]
Total		2,827
Loans obtained from foreign financial institutions [member] | Scotiabank Peru S.A [member]
Disclosure of detailed information about borrowings [line items]
Total		$ 1,457

Interbank Borrowings - Schedu_2

Interbank Borrowings - Schedule of Interbank Borrowings from Financial Institutions by Maturity (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Total	$ 2,646,756	$ 2,327,723
1 year [member]
Disclosure of detailed information about borrowings [line items]
Total	1,997,751	1,829,814
Due within 1 and 2 Year [member]
Disclosure of detailed information about borrowings [line items]
Total	442,784	319,870
2 year [member]
Disclosure of detailed information about borrowings [line items]
Total	83,908	17,595
3 year [member]
Disclosure of detailed information about borrowings [line items]
Total	80,073	77,993
4 year [member]
Disclosure of detailed information about borrowings [line items]
Total	7,521	11,644
Later than five years [member]
Disclosure of detailed information about borrowings [line items]
Total	$ 34,719	$ 70,807

Debt Instruments Issued and O_3

Debt Instruments Issued and Other Financial Liabilities - Schedule of Composition (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt instruments issued
Debt instruments issued	$ 6,408,356	$ 6,010,124	$ 5,950,038
Other financial liabilities
Other financial liabilities	12,966	12,400
Totals	6,421,322	6,022,524
Mortgage finance bonds [member]
Debt instruments issued
Debt instruments issued	40,933	53,463
Senior bond [member]
Debt instruments issued
Debt instruments issued	5,289,084	4,882,341
Subordinated Bonds [member]
Debt instruments issued
Debt instruments issued	1,078,339	1,074,320
Public Sector Liabilities [member]
Other financial liabilities
Other financial liabilities	10	10
Borrowings From Domestic Financial Institutions [member]
Other financial liabilities
Other financial liabilities	$ 12,956	$ 12,390

Debt Instruments Issued and O_4

Debt Instruments Issued and Other Financial Liabilities - Schedule of Debt Classified (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	$ 6,408,356	$ 6,010,124	$ 5,950,038
Other financial liabilities	12,966	12,400
Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	40,933	53,463
Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	5,289,084	4,882,341
Subordinated Bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	1,078,339	1,074,320
Long term debts [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	5,756,848	5,315,766
Long term debts [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	33,046	43,029
Long term debts [member] | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	4,645,463	4,220,626
Long term debts [member] | Subordinated Bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	1,078,339	1,052,111
Short term debts [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	651,508	694,358
Other financial liabilities	12,966	12,400
Short term debts [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	7,887	10,434
Short term debts [member] | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued	$ 643,621	661,715
Short term debts [member] | Subordinated Bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt instruments issued		$ 22,209

Debt Instruments Issued and O_5

Debt Instruments Issued and Other Financial Liabilities - Summary of Maturities for Mortgage Finance Bonds (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt maturity	$ 6,408,356	$ 6,010,124	$ 5,950,038
Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	40,933	53,463
1 year [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	7,887	10,434
Due within 1 and 2 Year [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	6,508	7,612
2 year [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	6,072	7,092
3 year [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	5,524	6,516
4 year [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	5,121	5,908
Later than five years [member] | Mortgage finance bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt maturity	$ 9,821	$ 15,901

Debt Instruments Issued and O_6

Debt Instruments Issued and Other Financial Liabilities - Schedule of Senior Bonds, by Currency (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 6,408,356	$ 6,010,124	$ 5,950,038
Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	5,289,084	4,882,341
Hungary, Forint | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	4,273,637	3,568,532
CLP [member] | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	481,083	416,116
USD [member] | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities		529,363
COP [member] | Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 534,364	$ 368,330

Debt Instruments Issued and O_7

Debt Instruments Issued and Other Financial Liabilities - Schedule of Maturities for Senior Bonds (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 6,408,356	$ 6,010,124	$ 5,950,038
Senior bond [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	5,289,084	4,882,341
Senior bond [member] | 1 year [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	643,621	661,715
Senior bond [member] | Due within 1 and 2 Year [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	323,921	637,595
Senior bond [member] | 2 year [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	608,342	216,695
Senior bond [member] | 3 year [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	282,882	446,323
Senior bond [member] | 4 year [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	478,634	276,047
Senior bond [member] | Later than five years [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 2,951,684	$ 2,643,966

Debt Instruments Issued and O_8

Debt Instruments Issued and Other Financial Liabilities - Summary of Senior Bonds Issued (Detail) - Senior bond [member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Hungary, Forint
Disclosure of detailed information about borrowings [line items]
Amount	$ 17,500,000	$ 11,450,000
Hungary, Forint | BCORAM0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	5 years 5 months
Issuance rate	3% annual
Hungary, Forint | BCORAM0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 3,000,000
Term	5 years 5 months
Issuance rate	3% annual
Hungary, Forint | BITACU0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	9 years 7 months
Issuance rate	2% annual
Hungary, Forint | BITACU0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	9 years 7 months
Issuance rate	2% annual
Hungary, Forint | BITACV0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	10 years 7 months
Issuance rate	2% annual
Hungary, Forint | BITACV0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	10 years 7 months
Issuance rate	2% annual
Hungary, Forint | BITACW0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,500,000
Term	11 years 5 months
Issuance rate	2% annual
Hungary, Forint | BITACS0418 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 2,000,000
Term	7 years 3 months
Issuance rate	2% annual
Hungary, Forint | BCORAQ0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 2,000,000
Term		10 years 4 months
Issuance rate		3% annual
Hungary, Forint | BCORAR0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 2,450,000
Term		11 years 4 months
Issuance rate		3% annual
Hungary, Forint | BCORAR0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 5,000,000
Term		11 years 4 months
Issuance rate		3% annual
Hungary, Forint | BCORAN0710 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 2,000,000
Term		7 years 5 months
Issuance rate		3% annual
CLP [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 57,000,000	$ 70,000,000,000
CLP [member] | BCORBX0914 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 40,000,000
Term	2 years 2 months
Issuance rate	5% annual
CLP [member] | BCORBX0914 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 1,000,000
Term	2 years 2 months
Issuance rate	5% annual
CLP [member] | BCORBX0914 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 14,500,000
Term	2 years 2 months
Issuance rate	5% annual
CLP [member] | BCORBX0914 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 1,500,000
Term	2 years 2 months
Issuance rate	5% annual
CLP [member] | BCORBY0914Member
Disclosure of detailed information about borrowings [line items]
Amount		$ 70,000,000,000
Term		4 years 5 months
Issuance rate		5% annual
COP [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 700,000,000,000	$ 314,176,000,000
COP [member] | SUBSERIE A36 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 163,035,000,000
Term	3 years
Issuance rate	6,13% annual
COP [member] | SUBSERIE A60 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 186,965,000,000
Term	5 years
Issuance rate	2,86% annual
COP [member] | SERIE A SUBSERIE A60 – 60 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 170,820,000,000
Term	5 years
Issuance rate	6,05% annual
COP [member] | SERIE C SUBSERIE C84 – 84 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 50,000,000,000
Term	7 years
Issuance rate	2,28% annual
COP [member] | SERIE C SUBSERIE C120 [member]
Disclosure of detailed information about borrowings [line items]
Amount	$ 129,180,000,000
Term	10 years
Issuance rate	2,76% annual
COP [member] | SUBSERIE B30 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 55,470,000,000
Term		3 years 6 months
Issuance rate		1.20% annual
COP [member] | SUBSERIE C48 [member]
Disclosure of detailed information about borrowings [line items]
Amount		$ 258,706,000,000
Term		4 years
Issuance rate		2.91% annual

Debt Instruments Issued and O_9

Debt Instruments Issued and Other Financial Liabilities - Schedule of Subordinated Bonds, by Currency (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 6,408,356	$ 6,010,124	$ 5,950,038
Subordinated Bonds [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	1,078,339	1,074,320
Subordinated Bonds [member] | Hungary, Forint
Disclosure of detailed information about borrowings [line items]
Debt Securities	95,545	95,599
Subordinated Bonds [member] | CLP [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	796,564	781,925
Subordinated Bonds [member] | COP [member]
Disclosure of detailed information about borrowings [line items]
Debt Securities	$ 186,230	$ 196,796

Debt Instruments Issued and _10

Debt Instruments Issued and Other Financial Liabilities - Summary of Maturities for Subordinated Bonds (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Total	$ 6,408,356	$ 6,010,124	$ 5,950,038
Subordinated Bonds [member]
Disclosure of detailed information about borrowings [line items]
Total	1,078,339	1,074,320
Subordinated Bonds [member] | 1 year [member]
Disclosure of detailed information about borrowings [line items]
Total		22,209
Subordinated Bonds [member] | 2 year [member]
Disclosure of detailed information about borrowings [line items]
Total	14,526
Subordinated Bonds [member] | 3 year [member]
Disclosure of detailed information about borrowings [line items]
Total	23,923	18,604
Subordinated Bonds [member] | 4 year [member]
Disclosure of detailed information about borrowings [line items]
Total	128,717	22,484
Subordinated Bonds [member] | Later than five years [member]
Disclosure of detailed information about borrowings [line items]
Total	$ 911,173	$ 1,011,023

Debt Instruments Issued and _11

Debt Instruments Issued and Other Financial Liabilities - Summary of Others Financial Obligations (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Amounts due to credit card transactions	$ 12,956	$ 12,390
Others	10	10
Totals short-term financial liabilities	12,966	12,400
After 1 year but within 2 years	12,966	12,400
Public Sector Liabilities [member]
Disclosure of detailed information about borrowings [line items]
After 1 year but within 2 years	$ 10	$ 10

Provisions - Schedule of Provis

Provisions - Schedule of Provisions (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Other Provisions [Line Items]
Totals	$ 177,827	$ 214,903	$ 117,889
Employee Related Provisions [member]
Disclosure of Other Provisions [Line Items]
Totals	102,877	99,945
Mandatory dividends [member]
Disclosure of Other Provisions [Line Items]
Totals	38,120	51,614
Provisions for contingent loans risk [member]
Disclosure of Other Provisions [Line Items]
Totals	34,271	45,848
Contingencies [member]
Disclosure of Other Provisions [Line Items]
Totals	$ 2,559	$ 17,496

Provisions - Movements in Conti

Provisions - Movements in Contingent Loans Provisions For Contingent Loan Risk According to IFRS9 (Detail) - IFRS9 [member] - CLP ($) $ 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]
Opening balance	$ 768,120	$ 740,573
- Transfers to stage 1		(77,796)
- Transfers to stage 2		(43,864)
- Transfers to stage 3		27,165
- Increases due to change in credit risk	(269,348)	(85,755)
- Decreases due to change in credit risk	(111,255)	(61,965)
Charge-offs	(167,364)	(134,966)
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	282,800	221,176
Financial assets that have been derecognized	(199,319)	(193,074)
Changes in models/risk parameters		(6,149)
Foreign exchange and other movements	(37,787)	(9,977)
Ending balance	880,117	768,120
Individually Evaluated [Member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	133,610	82,125
- Increases due to change in credit risk	(63,901)	(20,319)
- Decreases due to change in credit risk	(8,854)	(2,238)
Charge-offs	(13,891)
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	19,872	23,465
Financial assets that have been derecognized	(4,976)	(35,991)
Changes in models/risk parameters	(933)	(45,930)
Foreign exchange and other movements	(2,540)
Ending balance	193,135	133,610
Individually Evaluated [Member] | Contingent loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	45,848
- Transfers to stage 1		(388)
- Transfers to stage 2	0	113
- Transfers to stage 3	0	(108)
- Increases due to change in credit risk	8,155	7,849
- Decreases due to change in credit risk	(6,654)	(1,783)
Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	7,463	6,195
Financial assets that have been derecognized	(21,239)	(26,075)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	698	354
Ending balance	34,271	45,848
Individually Evaluated [Member] | Contingent loans [member] | Restated [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		59,691
Individually Evaluated [Member] | Contingent loans [member] | After restatement [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		59,691
Stage1 [member] | 12-month expected credit losses [member] | Individually Evaluated [Member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
- Changes due to modifications that did not result in derecognition	0	0
Stage1 [member] | 12-month expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	15,879
- Transfers to stage 1	1,123
- Transfers to stage 2	(521)	(155)
- Transfers to stage 3	(90)	(42)
- Increases due to change in credit risk	1,932	2,283
- Decreases due to change in credit risk	(5,695)	(1,298)
Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	5,490	5,104
Financial assets that have been derecognized	(4,927)	(3,763)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	698	265
Ending balance	13,889	15,879
Stage1 [member] | 12-month expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | Restated [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		13,485
Stage1 [member] | 12-month expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | After restatement [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		13,485
Stage 2 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	46,153	49,389
- Transfers to stage 3	22,642
- Increases due to change in credit risk	(1,216)	(3,732)
- Decreases due to change in credit risk	(7,758)	(532)
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	12,496	6,428
Financial assets that have been derecognized	(1,824)	(20,636)
Changes in models/risk parameters	(933)	(7,772)
Foreign exchange and other movements	(13,426)
Ending balance	42,000	46,153
Stage 2 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	28,112
- Transfers to stage 1	(1,036)	(504)
- Transfers to stage 2	570	0
- Transfers to stage 3	(161)	(66)
- Increases due to change in credit risk	1,618	5,528
- Decreases due to change in credit risk	(802)	(446)
Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	1,193	965
Financial assets that have been derecognized	(15,322)	(21,558)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	86
Ending balance	14,172	28,112
Stage 2 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | Restated [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		44,107
Stage 2 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | After restatement [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		44,107
Stage 3 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	87,457	32,736
- Transfers to stage 3	(22,642)
- Increases due to change in credit risk	(62,685)	(16,587)
- Decreases due to change in credit risk	(1,096)	(1,706)
Charge-offs	(13,891)
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	7,376	17,037
Financial assets that have been derecognized	(3,152)	(15,355)
Changes in models/risk parameters		(38,158)
Foreign exchange and other movements	10,886
Ending balance	151,135	87,457
Stage 3 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance	1,857
- Transfers to stage 1	(87)	116
- Transfers to stage 2	(49)	268
- Transfers to stage 3	251	0
- Increases due to change in credit risk	4,605	38
- Decreases due to change in credit risk	(157)	(39)
Charge-offs	0	0
- Changes due to modifications that did not result in derecognition	0	0
New financial assets originated or purchased	780	126
Financial assets that have been derecognized	(990)	(754)
Changes in models/risk parameters	0	0
Foreign exchange and other movements	0	3
Ending balance	$ 6,210	1,857
Stage 3 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | Restated [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		2,099
Stage 3 [member] | Lifetime expected credit losses [member] | Individually Evaluated [Member] | Contingent loans [member] | After restatement [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Opening balance		$ 2,099

Provisions - Schedule of Prov_2

Provisions - Schedule of Provision Balance Changes (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Other Provisions [Line Items]
Opening Balances	$ 214,903	$ 117,889
Provisions applied	(140,837)	(44,260)
Provisions recorded		128,274
Provisions established	(144,467)
Provisions released	(50,835)	(55,262)
Other movements	10,129	8,571
Ending Balance	177,827	214,903
Restated [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	59,691
Ending Balance		59,691
Provisions for personnel salaries and expenses [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	99,945	90,559
Provisions applied	(71,020)	(27,026)
Provisions recorded		53,156
Provisions established	(82,456)
Provisions released	(17,514)	(25,561)
Other movements	9,010	8,817
Ending Balance	102,877	99,945
Provisions for mandatory dividends [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	51,614	17,234
Provisions applied	(51,614)	(17,234)
Provisions recorded		51,614
Provisions established	(38,120)
Ending Balance	38,120	51,614
Provisions for contingent loans risk [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	45,848
Provisions applied	(23,804)
Provisions recorded		14,511
Provisions established	(18,483)
Provisions released	(6,954)	(28,354)
Other movements	698
Ending Balance	34,271	45,848
Provisions for contingent loans risk [member] | Restated [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	59,691
Ending Balance		59,691
Provisions for contingencies [member]
Disclosure of Other Provisions [Line Items]
Opening Balances	17,496	10,096
Provisions applied	5,601
Provisions recorded		8,993
Provisions established	(5,408)
Provisions released	(26,367)	(1,347)
Other movements	421	(246)
Ending Balance	$ 2,559	$ 17,496

Provisions - Schedule of Prov_3

Provisions - Schedule of Provisions for Payroll and Employee Benefits (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Other Provisions [Line Items]
Totals	$ 177,827	$ 214,903	$ 117,889
Long-term employee benefits [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	9,814	8,298	7,914
Pension plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	35,166	30,908	31,761
Retroactive unemployment plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	334	373	371
Retirements bonus plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	687	542	$ 476
Employee Related Provisions [member]
Disclosure of Other Provisions [Line Items]
Vacation accrual	15,231	13,575
Totals	102,877	99,945
Employee Related Provisions [member] | Long-term employee benefits [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	9,814	8,298
Employee Related Provisions [member] | Pension plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	35,166	30,908
Employee Related Provisions [member] | Retroactive unemployment plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	334	373
Employee Related Provisions [member] | Retirements bonus plan [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	687	542
Employee Related Provisions [member] | Other employee benefits [member]
Disclosure of Other Provisions [Line Items]
Provisions for employee benefits	$ 41,645	$ 46,249

Provisions - Summary of Economi

Provisions - Summary of Economic Assumptions (Detail) - Long-term employee benefits [member]	Dec. 31, 2019	Dec. 31, 2018
Summary of economic assumptions [line items]
Discount rate	6.25%	6.25%
Expected rate of salary increase	5.50%	5.70%

Provisions - Movements of Prese

Provisions - Movements of Present Value Of Obligation and The Amounts Recognized in Consolidated Statements Of Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Other Provisions [Line Items]
Provisions recorded		$ 128,274
Long-term employee benefits [member]
Disclosure of Other Provisions [Line Items]
Beginning balance	$ 8,298	7,914
Net cost of benefits	1,490	1,397
Payments	(815)	(973)
Provisions recorded	278	(350)
Exchange differences	563	310
Ending balance	$ 9,814	$ 8,298

Provisions - Cost of Benefit (D

Provisions - Cost of Benefit (Detail) - Long-term employee benefits [member] - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [line items]
Current services cost	$ 962	$ 836
Interest expense on obligation	528	561
Total	$ 1,490	$ 1,397

Provisions - Summary of Econo_2

Provisions - Summary of Economic Assumptions - Pension Plan (Detail) - Pension plan [member]	Dec. 31, 2019	Dec. 31, 2018
Summary of economic assumptions [line items]
Discount rate	6.50%	6.75%
Expected rate of salary increases	3.00%	3.20%
Inflation rate	3.00%	3.20%

Provisions - Schedule of Pensio

Provisions - Schedule of Pension Plan Balances Movements (Detail) - Pension plan [member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Provisions [line items]
Beginning balance	$ 30,908	$ 31,761
Interest expense on obligation	2,120	2,359
Payments	(3,768)	(3,802)
Actuarial losses (gains)	4,512	(698)
Exchange differences	1,394	1,288
Ending balance	$ 35,166	$ 30,908

Provisions - Summary of Econo_3

Provisions - Summary of Economic Assumptions- Retroactive Unemployment Plan (Detail) - Retroactive unemployment plan [member]	Dec. 31, 2019	Dec. 31, 2018
Provisions [line items]
Discount rate	5.50%	5.75%
Expected rate of salary increases	5.50%	5.70%
Inflation rate	3.00%	3.20%

Provisions - Schedule of Change

Provisions - Schedule of Changes in Provision - Severance (Detail) - Retroactive unemployment plan [member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [line items]
Beginning balance	$ 373	$ 371
Current services costs	136	108
Interest expense on obligations	21	24
Actuarial gains	(113)	(32)
Payments of benefits	(108)	(115)
Exchange differences	25	17
Ending balance	$ 334	$ 373

Provisions - Summary of Econo_4

Provisions - Summary of Economic Assumptions- Retirement Bonus Plan (Detail) - Retirements bonus plan [member]	Dec. 31, 2019	Dec. 31, 2018
Summary of economic assumptions [line items]
Summary of economic hypothesis Discount rate(s)	6.50%	6.75%
Expected rate(s) of salary increase	5.00%	5.20%
Inflation rate	3.00%	3.20%

Provisions - Schedule of Chan_2

Provisions - Schedule of Changes in Provision - Retirement Benefit Plan (Detail) - Retirements bonus plan [member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [line items]
Beginning balance	$ 542	$ 476
Current service costs		39
Interest expense on obligation	81	37
Actuarial (gains) losses	33	(24)
Payments of benefits	(6)	(5)
Exchange differences	37	19
Ending balance	$ 687	$ 542

Provisions - Schedule of Summar

Provisions - Schedule of Summary Effects in Other Comprehensive Income (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension plan [member]
Disclosure of Provisions [line items]
Total loss	$ (4,512)	$ (698)	$ 223
Retroactive unemployment plan [member]
Disclosure of Provisions [line items]
Total loss	113	(32)	(19)
Retirements bonus plan [member]
Disclosure of Provisions [line items]
Total loss	(33)	(24)	4
Long-term employee benefits [member]
Disclosure of Provisions [line items]
Total loss	$ (4,432)	$ (754)	$ 208

Provisions - Schedule of Future

Provisions - Schedule of Future Payments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Long-term employee benefits [member] | 1 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	$ 948	$ 783
Long-term employee benefits [member] | Due within 1 and 2 Year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	1,058	842
Long-term employee benefits [member] | 2 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	1,250	1,003
Long-term employee benefits [member] | 3 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	1,245	1,147
Long-term employee benefits [member] | 4 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	915	1,160
Long-term employee benefits [member] | Later than five years [member]
Disclosure of defined benefit plans [line items]
Expected future payments	5,134	4,749
Pension plan [member] | 1 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	3,116	2,995
Pension plan [member] | Due within 1 and 2 Year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	2,960	2,858
Pension plan [member] | 2 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	2,793	2,682
Pension plan [member] | 3 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	2,725	2,527
Pension plan [member] | 4 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	2,698	2,457
Pension plan [member] | Later than five years [member]
Disclosure of defined benefit plans [line items]
Expected future payments	12,844	11,751
Retroactive unemployment plan [member] | 1 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	69	66
Retroactive unemployment plan [member] | Due within 1 and 2 Year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	16	38
Retroactive unemployment plan [member] | 2 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	70	20
Retroactive unemployment plan [member] | 3 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	77	70
Retroactive unemployment plan [member] | 4 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	29	102
Retroactive unemployment plan [member] | Later than five years [member]
Disclosure of defined benefit plans [line items]
Expected future payments	71	94
Retirement Bonus Plan [member] | 1 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	64	40
Retirement Bonus Plan [member] | Due within 1 and 2 Year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	28	22
Retirement Bonus Plan [member] | 2 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	47	26
Retirement Bonus Plan [member] | 3 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	50	40
Retirement Bonus Plan [member] | 4 year [member]
Disclosure of defined benefit plans [line items]
Expected future payments	42	43
Retirement Bonus Plan [member] | Later than five years [member]
Disclosure of defined benefit plans [line items]
Expected future payments	$ 222	$ 203

Other Liabilities and Liabili_3

Other Liabilities and Liabilities Directly Associated With Non-Current Assets Held for Sale - Schedule of Other Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other liabilities and liabilities directly associated with non current assets held for sale [abstract]
Accounts and notes payable	$ 382,271	$ 317,703
Dividends payable	267	270
Unearned income	5,644	9,089
Valuation adjustment for hedge accounting	8,321	8,604
Payables due to brokerage transactions	140,799	75,872
Collateral for financial transactions (threshold)	116,654	91,223
Other liabilities	54,958	19,034
Totals	$ 708,914	$ 521,795

Other Liabilities and Liabili_4

Other Liabilities and Liabilities Directly Associated With Non-Current Assets Held for Sale - Schedule of Other Liabilities Other (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018CLP ($)
Other liabilities and liabilities directly associated with non current assets held for sale [abstract]
Penalty fee	$ 1,616
Penalty fee payable	$ 5,985

Other Liabilities and Liabili_5

Other Liabilities and Liabilities Directly Associated With Non-Current Assets Held for Sale - Additional Information (Detail) - CLP ($)	Dec. 31, 2019	Dec. 31, 2018
Disclosure of other liabilities and liabilities directly associated with noncurrent assets held for sale [line items]
Other liabilities	$ 708,914,000,000	$ 521,795,000,000
Non-current assets held for sale [member]
Disclosure of other liabilities and liabilities directly associated with noncurrent assets held for sale [line items]
Other liabilities	$ 0	$ 0

Contingencies, Commitments and

Contingencies, Commitments and Responsibilities - Additional Information (Detail) $ / shares in Units, $ in Thousands, in Millions	Nov. 05, 2019	Sep. 13, 2019shares	Nov. 22, 2017USD ($)	Nov. 22, 2017CLP ($)	Dec. 31, 2019USD ($)$ / shares	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2019CLF ( )shares	Dec. 31, 2019CLP ($)shares	Nov. 22, 2017CLP ($)
Disclosure of contingent liabilities in business combination [line items]
Provision for lawsuits and legal proceedings							$ 956,000		$ 280,000
Amount of pledged shares to secure Obligations related to transactions carried out with other brokers						$ 18,479,000	12,630,000
Guarantee in cash and financial assets ceded to guarantee transactions						$ 9,067,000	5,042,000
Guarantee ticket amount |								10,000
Foreign traders guarantee amount			$ 100,000							$ 75
Pershing and corp FX guarantee amount			$ 30,000	$ 23
Guarantee expiration date					Jun. 20, 2020	Jun. 20, 2020
MCC S.A. Corredores de Bolsa [member]
Disclosure of contingent liabilities in business combination [line items]
Percentage of voting equity interests acquired								100.00%	100.00%
Itaú Corredor de Seguros Colombia S.A [Member]
Disclosure of contingent liabilities in business combination [line items]
Percentage of ownership interest acquired	20.00%
Banco Corpbanca Colombia [member]
Disclosure of contingent liabilities in business combination [line items]
Percentage of shares outstanding					12.36%	12.36%
Number of shares acquired | shares								93,306,684	93,306,684
Purchase price per share | $ / shares					$ 3.5367
Value of shares purchased					$ 329,997,749.30
Spread on variable interest rate					2.70%	2.70%
Banco Santander Chile [member] | Nexus S.A [member]
Disclosure of contingent liabilities in business combination [line items]
Number Of Shares Sold | shares		537,141
Percentage of increase in ownership interest		1.90%
Itau Corpbanca Colombia S.A. [member]
Disclosure of contingent liabilities in business combination [line items]
Provision for lawsuits and legal proceedings							152,000		$ 141,000
Aggregate legal claims							32,375,000		38,503,000
Top of Range [Member]
Disclosure of contingent liabilities in business combination [line items]
Provision for lawsuits and legal proceedings							$ 26,995,000		$ 22,207,000

Contingencies, Commitments an_2

Contingencies, Commitments and Responsibilities - Schedule of Bank and Its Subsidiaries are Contractually Obliged to Grant Loans (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of contingent liabilities in business combination [line items]
Provisions	$ 177,827	$ 214,903	$ 117,889
Bank And Subsidiaries Liabilities [Member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	5,940,086	5,383,914
Contingent liability for guarantees [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	548,521	411,023
Contingent liability for confirmes foreign letters of credit [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	509
Letters of credit issued [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	97,553	95,476
Documented guarantees [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	1,501,957	1,286,805
Available on demand credit lines [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	2,623,744	2,143,333
Contingent liability for other credit commitments [member]
Disclosure of contingent liabilities in business combination [line items]
Contingent loans	$ 1,167,802	$ 1,447,277

Contingencies, Commitments an_3

Contingencies, Commitments and Responsibilities - Schedule of Responsibilities Arising From the Regular Course of Business (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Third party operations
Collections	$ 17,985	$ 17,030
Transferred financial assets managed by the Bank	1,200,155	1,101,327
Third party funds under management	2,541,495	2,306,154
Subtotals	3,759,635	3,424,511
Custody of securities
Securities held in custody	5,229,078	5,896,162
Securities held in custody deposited in other entities		315,347
Securities issued by the Bank held in custody	131,648	148,193
Subtotals	5,360,726	6,359,702
Totals	$ 9,120,361	$ 9,784,213

Contingencies, Commitments an_4

Contingencies, Commitments and Responsibilities - Schedule of Damages That May Be Incurred By Insured Parties that Contract Policies (Detail) - Consorcio Nacionalde SegurosSA [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)
Disclosure of subsidiaries [line items]
From date	Apr. 12, 2019
End date	Apr. 12, 2020
Amount (UF)	$ 60,000
Amount (UF)	$ 500

Contingencies, Commitments an_5

Contingencies, Commitments and Responsibilities - Schedule of Performance Bond (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)
Itau Chile [member]
Disclosure of subsidiaries [line items]
From	Apr. 23, 2019
To	Apr. 23, 2020
Amount (UF)	$ 16,000
Mapfre Compania De Seguros SA [member]
Disclosure of subsidiaries [line items]
From	Apr. 23, 2019
To	Apr. 23, 2020
Amount (UF)	$ 4,000
Itau chile1 [member]
Disclosure of subsidiaries [line items]
From	Apr. 23, 2019
To	Apr. 23, 2020
Amount (UF)	$ 10,000

Contingencies, Commitments an_6

Contingencies, Commitments and Responsibilities - Schedule of Comprehensive Insurance Policy (Detail) - Orion Seguros Generales S.A. [member] $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)
Disclosure of subsidiaries [line items]
From	May 29, 2019
To	May 31, 2020
Amount (UF)	$ 5,000
Amount (UF)	$ 10,000

Contingencies, Commitments an_7

Contingencies, Commitments and Responsibilities - Schedule of Guarantee Slips and Beneficiaries (Detail) - 12 months ended Dec. 31, 2019 Ft in Millions, $ in Millions	HUF (Ft)	CLP ($)
Banco Santander Chile [member]
Disclosure of subsidiaries [line items]
From date	Jun. 2, 2017
End date	Aug. 31, 2021
Amount	Ft 15,000
Banco Santander Chile [member]
Disclosure of subsidiaries [line items]
From date	Aug. 14, 2017
End date	Aug. 30, 2021
Amount	Ft 500
Itaú Corpbanca Chile [member]
Disclosure of subsidiaries [line items]
From date	Jun. 27, 2019
End date	Jul. 1, 2020
Amount | $		$ 50

Equity - Schedule of Paid in Ca

Equity - Schedule of Paid in Capital of the Bank (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity note[abstract]
Beginning Balance	512,406,760,091	512,406,760,091	512,406,760,091
Issuance of shares pending payment	0	0	0
Repurchase of own shares	0	0	0
Sale of own shares	0	0	0
Ending Balance	512,406,760,091	512,406,760,091	512,406,760,091

Equity - Additional Information

Equity - Additional Information (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019	Jan. 01, 2018	Dec. 31, 2016
Disclosure of equity [line items]
Equity	$ 1,862,826	$ 1,862,826	$ 1,862,826
Number of share outstanding	512,406,760,091	512,406,760,091	512,406,760,091			512,406,760,091
Percentage of dividend on profit	30.00%	30.00%	40.00%
Distribution of dividends		$ 51,614	$ 22,979
Equity	$ 3,326,338	3,437,560	3,428,757	$ 3,437,560	$ 3,428,757	$ 3,423,712
Retained earnings from prior years	(50,537)	(69,355)
Other equity interest [member]
Disclosure of equity [line items]
Equity	744,838	839,120	839,120	839,120	839,120	843,097
Revaluation surplus [member]
Disclosure of equity [line items]
Equity	$ 451,011	$ 451,011	$ 451,011	$ 451,011	$ 451,011	$ 451,011

Equity - Schedule of Shareholde

Equity - Schedule of Shareholder List (Detail) - shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of transactions between related parties [line items]
Number of shares	512,406,760,091	512,406,760,091	512,406,760,091	512,406,760,091
Percentage of equity holding	100.00%	100.00%	100.00%
Itau Unibanco [member]
Disclosure of transactions between related parties [line items]
Number of shares	195,408,043,473	195,408,043,473	184,756,488,453
Percentage of equity holding	38.14%	38.14%	36.06%
Itau Unibanco Holding S A [member]
Disclosure of transactions between related parties [line items]
Number of shares	115,039,610,411	115,039,610,411	115,039,610,411
Percentage of equity holding	22.45%	22.45%	22.45%
ITB Holding Brasil Participacoes Ltda. [Member]
Disclosure of transactions between related parties [line items]
Number of shares	57,008,875,206	57,008,875,206	57,008,875,206
Percentage of equity holding	11.13%	11.13%	11.13%
CGB II SpA [member]
Disclosure of transactions between related parties [line items]
Number of shares	10,908,002,836	10,908,002,836	10,908,002,836
Percentage of equity holding	2.13%	2.13%	2.13%
CGB III SpA [member]
Disclosure of transactions between related parties [line items]
Number of shares	1,800,000,000	1,800,000,000	1,800,000,000
Percentage of equity holding	0.35%	0.35%	0.35%
Saga II SpA [member]
Disclosure of transactions between related parties [line items]
Number of shares	7,000,000,000	7,000,000,000
Percentage of equity holding	1.37%	1.37%
Saga III SpA [member]
Disclosure of transactions between related parties [line items]
Number of shares	3,651,555,020	3,651,555,020
Percentage of equity holding	0.71%	0.71%
Saieh Family [member]
Disclosure of transactions between related parties [line items]
Number of shares	146,394,540,608	146,394,540,608	157,046,095,628
Percentage of equity holding	28.57%	28.57%	30.65%
Corp Group Banking SA [member]
Disclosure of transactions between related parties [line items]
Number of shares	136,127,850,073	136,127,850,073	136,127,850,073
Percentage of equity holding	26.57%	26.57%	26.57%
Compniua Inmobiliaria y de Inversiones Saga SpA [member]
Disclosure of transactions between related parties [line items]
Number of shares	10,266,690,535	10,266,690,535	20,918,245,555
Percentage of equity holding	2.00%	2.00%	4.08%
International Finance Corporation [member]
Disclosure of transactions between related parties [line items]
Number of shares	17,017,909,711	17,017,909,711	17,017,909,711
Percentage of equity holding	3.32%	3.32%	3.32%
Others [member]
Disclosure of transactions between related parties [line items]
Number of shares	153,586,266,299	153,586,266,299	153,586,266,299
Percentage of equity holding	29.97%	29.97%	29.97%
Stock brokers [member]
Disclosure of transactions between related parties [line items]
Number of shares	63,397,824,244	55,791,614,655	53,400,666,996
Percentage of equity holding	12.37%	10.89%	10.42%
ADR holders and foreign investors [member]
Disclosure of transactions between related parties [line items]
Number of shares	50,376,882,652	42,838,887,354	50,064,467,904
Percentage of equity holding	9.83%	8.36%	9.77%
Asset management companies [member]
Disclosure of transactions between related parties [line items]
Number of shares	27,989,426,434	17,778,018,941	16,892,054,779
Percentage of equity holding	5.46%	3.47%	3.30%
Santo Domingo Group [member]
Disclosure of transactions between related parties [line items]
Number of shares	11,822,132,969	9,817,092,180	9,817,092,180
Percentage of equity holding	2.31%	1.92%	1.92%
Insurance companies [member]
Disclosure of transactions between related parties [line items]
Number of shares		5,220,388,512	5,212,338,243
Percentage of equity holding		1.02%	1.02%
Pension funds management companies [member]
Disclosure of transactions between related parties [line items]
Number of shares		3,981,075,117	944,399,401
Percentage of equity holding		0.77%	0.18%
Other minority shareholders [member]
Disclosure of transactions between related parties [line items]
Number of shares		18,159,189,540	17,255,246,796
Percentage of equity holding		3.54%	3.36%

Equity - Schedule of Sharehol_2

Equity - Schedule of Shareholder List Other (Detail) - shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of transactions between related parties [line items]
Number of shares outstanding	512,406,760,091	512,406,760,091	512,406,760,091	512,406,760,091
Third party custody [member]
Disclosure of transactions between related parties [line items]
Number of shares outstanding		640,844,096

Equity - Schedule of Distributi

Equity - Schedule of Distribution of Dividends (Detail) - CLP ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of equity [line items]
Income attributable to equity holders	$ 113,684	$ 171,331	$ 67,821
Allocated to reserves and retained earnings		120,433	34,468
Allocated to dividends		$ 51,614	$ 22,979
Percentage distributed		0.30%	0.40%
Number of shares		512,406,760,091	512,406,760,091
Dividend per share		$ 0.10073	$ 0.04485
SBIF [member]
Disclosure of equity [line items]
Income attributable to equity holders		$ 172,047	$ 57,447

Equity - Schedule of Attributab

Equity - Schedule of Attributable to the Equity Holders of the Bank (Detail) - CLP ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Diluted earnings per share
Net income for the period	$ 113,684	$ 171,331	$ 67,821
Weighted average number of outstanding shares	512,407	512,407	512,407
Dilutive effects
Assumed convertible debt conversion	0	0	0
Conversion of common shares	0	0	0
Options rights	0	0	0
Adjusted number of shares	512,407	512,407
Diluted earnings per share (Chilean pesos)	$ 0.222	$ 0.334	$ 0.132
Net income for the period	$ 113,684	$ 171,331	$ 67,821
Weighted average number of outstanding shares	512,407	512,407	512,407
Assumed convertible debt conversion	0	0	0
Adjusted number of outstanding shares	512,407	512,407
Basic earnings per share (Chilean pesos)	$ 0.222	$ 0.334	$ 0.132

Equity - Schedule of Equity and

Equity - Schedule of Equity and Income Taxes Attributable to the Equity Holders (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	$ 30,400	$ 15,382	$ 19,468
Effects for the period	21,637	13,522	(4,086)
Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings	(175)
Other comprehensive income (loss) before income taxes, ending balance	51,862	30,400	15,382
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	(14,241)	(20,117)	(3,916)
Effects for the period	9,496	6,375	(16,201)
Income taxes related to components of other comprehensive income (loss), ending balance	(4,745)	(14,241)	(20,117)
Net balances	47,292	16,159	(4,735)
Net balance	47,117
Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		1,496
Other comprehensive income (loss) before income taxes, ending balance			1,496
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		(499)
Income taxes related to components of other comprehensive income (loss), ending balance			(499)
Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		16,878
Other comprehensive income (loss) before income taxes, ending balance			16,878
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		(20,616)
Income taxes related to components of other comprehensive income (loss), ending balance			(20,616)
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	16,459	16,592
Effects for the period		(614)
Other comprehensive income (loss) before income taxes, ending balance		16,459	16,592
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	(6,904)	(4,937)
Effects for the period		(1,468)
Income taxes related to components of other comprehensive income (loss), ending balance		(6,904)	(4,937)
Net balances		9,555
Investments in equity instruments designated at fair value through other comprehensive income [member] | Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		481
Other comprehensive income (loss) before income taxes, ending balance			481
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		(499)
Income taxes related to components of other comprehensive income (loss), ending balance			(499)
Investments in equity instruments designated at fair value through other comprehensive income [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		17,073
Other comprehensive income (loss) before income taxes, ending balance			17,073
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		(5,436)
Income taxes related to components of other comprehensive income (loss), ending balance			(5,436)
Reserve of cash flow hedges [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	5,559	(5,730)	(5,603)
Effects for the period	(6,381)	11,289	(127)
Other comprehensive income (loss) before income taxes, ending balance	(822)	5,559	(5,730)
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	(280)	1,389	1,345
Effects for the period	(185)	(1,669)	44
Income taxes related to components of other comprehensive income (loss), ending balance	(465)	(280)	1,389
Net balances		5,279	(4,341)
Net balance	(1,287)
Reserve of cash flow hedges [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		(5,730)
Other comprehensive income (loss) before income taxes, ending balance			(5,730)
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		1,389
Income taxes related to components of other comprehensive income (loss), ending balance			1,389
Hedges of net investment in foreign operations [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	29,403	64,741	14,917
Effects for the period	(46,786)	(35,338)	49,824
Other comprehensive income (loss) before income taxes, ending balance	(17,383)	29,403	64,741
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	(7,746)	(17,287)	(3,219)
Effects for the period	14,373	9,541	(14,068)
Income taxes related to components of other comprehensive income (loss), ending balance	6,627	(7,746)	(17,287)
Net balances		21,657	47,454
Net balance	(10,756)
Hedges of net investment in foreign operations [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		64,741
Other comprehensive income (loss) before income taxes, ending balance			64,741
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		(17,287)
Income taxes related to components of other comprehensive income (loss), ending balance			(17,287)
Reserve of exchange differences on translation [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	(19,119)	(57,485)	2,380
Effects for the period	56,487	38,366	(59,865)
Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings	(40)
Other comprehensive income (loss) before income taxes, ending balance	37,328	(19,119)	(57,485)
Income taxes related to components of other comprehensive income (loss)
Net balances		(19,119)	(57,485)
Net balance	37,328
Reserve of exchange differences on translation [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		(57,485)
Other comprehensive income (loss) before income taxes, ending balance			(57,485)
Reserve of remeasurements of defined benefit plans [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	(3,236)	(2,736)	(2,598)
Effects for the period	(3,248)	(500)	(138)
Other comprehensive income (loss) before income taxes, ending balance	(6,484)	(3,236)	(2,736)
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	689	718	722
Effects for the period	1,109	(29)	(4)
Income taxes related to components of other comprehensive income (loss), ending balance	1,798	689	718
Net balances		(2,547)	(2,018)
Net balance	(4,686)
Reserve of remeasurements of defined benefit plans [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		(2,736)
Other comprehensive income (loss) before income taxes, ending balance			(2,736)
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance		718
Income taxes related to components of other comprehensive income (loss), ending balance			718
Reserve of gains and losses on financial assets and liabilities measured at fair value through other comprehensive income [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	1,334
Effects for the period	540	319
Transfer of gain on disposal of equity investments at fair value through other comprehensive income to retained earnings	(135)
Other comprehensive income (loss) before income taxes, ending balance	1,739	1,334
Income taxes related to components of other comprehensive income (loss)
Net balances		1,334
Net balance	1,739
Reserve of gains and losses on financial assets and liabilities measured at fair value through other comprehensive income [member] | Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		1,015
Other comprehensive income (loss) before income taxes, ending balance			1,015
Reserve of gains and losses on financial assets and liabilities measured at fair value through other comprehensive income [member] | Revised For IFRS 9 [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance		1,015
Other comprehensive income (loss) before income taxes, ending balance			1,015
Reserve of gains and losses on remeasuring available-for-sale financial assets [member]
Disclosure of available for sale financial assets [line items]
Other comprehensive income (loss) before income taxes, beginning balance	16,459	16,592	10,372
Effects for the period	21,025		6,220
Other comprehensive income (loss) before income taxes, ending balance	37,484	16,459	16,592
Income taxes related to components of other comprehensive income (loss)
Income taxes related to components of other comprehensive income (loss), beginning balance	(6,904)	(4,937)	(2,764)
Effects for the period	(5,801)		(2,173)
Income taxes related to components of other comprehensive income (loss), ending balance	(12,705)	$ (6,904)	(4,937)
Net balances			$ 11,655
Net balance	$ 24,779

Equity - Schedule of Non-contro

Equity - Schedule of Non-controlling Interest in the Subsidiary's Equity and Profit (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of available for sale financial assets [line items]
Equity	$ 94,445	$ 218,082	$ 217,280	$ 238,969
Net income	10,838	(4,477)	(4,996)
Financial instruments at fair value through other comprehensive income	21,703	(1,441)
Available for sale investments			9,966
Exchange differences	73,855	48,610	(78,302)
Defined benefit obligation	(4,432)	(754)	(208)
Deferred Tax	9,496	6,375	(16,201)
Comprehensive income	27,894	3,959	(21,689)
Debt instruments issued	$ 6,408,356	$ 6,010,124	5,950,038
Itau Corredores de Seguros S.A [member]
Disclosure of available for sale financial assets [line items]
Non-controlling	100.00%	100.00%
Helm Corredor de Seguros S.A. [member]
Disclosure of available for sale financial assets [line items]
Non-controlling	79.98%	79.98%
Itau Chile Administradora General de Fondos S.A. [member]
Disclosure of available for sale financial assets [line items]
Non-controlling	100.00%	100.00%
Non controlling Interest [Member]
Disclosure of available for sale financial assets [line items]
Equity	$ 94,445	$ 218,082	217,280
Net income	10,838	(4,477)	(4,996)
Financial instruments at fair value through other comprehensive income	678	(664)
Financial instruments at fair value through other comprehensive income	952	(827)
Available for sale investments			3,746
Exchange differences	17,368	10,244	(18,437)
Effect hedge Accounting Foreign Investment		(1,195)	(627)
Cash Flow hedges	(411)
Defined benefit obligation	(1,184)	(254)	(70)
Deferred Tax	331	305	(1,305)
Other comprehensive income	17,056	8,436	(16,693)
Comprehensive income	$ 27,894	$ 3,959	$ (21,689)
Non controlling Interest [Member] | Itau Corredores de Seguros Colombia S.A. [member]
Disclosure of available for sale financial assets [line items]
Non-controlling	20.20%	20.20%
Equity	$ 478	$ 409
Net income	125	15
Comprehensive income	$ 125	$ 15
Non controlling Interest [Member] | Itau Corpbanca Colombia S.A. y filiales [member]
Disclosure of available for sale financial assets [line items]
Non-controlling	12.90%	33.721%	33.721%
Equity	$ 93,967	$ 217,673	$ 216,883
Net income	10,713	(4,500)	(5,001)
Financial instruments at fair value through other comprehensive income	952	(664)
Available for sale investments			3,746
Exchange differences	17,368	10,244	(18,437)
Effect hedge Accounting Foreign Investment		(1,195)	(627)
Cash Flow hedges	(411)
Defined benefit obligation	(1,184)	(254)	(70)
Deferred Tax	331	305	(1,305)
Other comprehensive income	17,056	8,436	(16,693)
Comprehensive income	27,769	3,936	$ (21,694)
Non controlling Interest [Member] | Itau Corredores de Seguros S.A [member]
Disclosure of available for sale financial assets [line items]
Non-controlling			20.20%
Equity			$ 380
Net income		8	(5)
Comprehensive income		8	(5)
Non controlling Interest [Member] | Itau Corpbanca Corredores de Bolsa Limitada [member]
Disclosure of available for sale financial assets [line items]
Equity			$ 4
Non controlling Interest [Member] | Itau Chile Corredora de Seguros Ltda [member]
Disclosure of available for sale financial assets [line items]
Non-controlling			0.029%
Equity			$ 12
Net income			10
Comprehensive income			$ 10
Non controlling Interest [Member] | Itau Chile Administradora General de Fondos S.A. [member]
Disclosure of available for sale financial assets [line items]
Non-controlling			0.60%
Equity			$ 1
Reserve of gains and losses on financial assets and liabilities measured at fair value through other comprehensive income [member]
Disclosure of available for sale financial assets [line items]
Equity	274
Debt instruments issued	$ 678
Debt instrument losses		827
Equity instrument gains		$ 163

Equity - Schedule of Non-cont_2

Equity - Schedule of Non-controlling Interest in the Subsidiary's Equity and Profit Other (Detail) - item item in Millions	Dec. 03, 2019	Dec. 10, 2018	Sep. 10, 2018	Jul. 04, 2018
Itau Corpbanca Colombia S.A. y filiales [member]
Disclosure of available for sale financial assets [line items]
Percentage of shares owned	87.10%
Itau Corredores de Seguros S.A [member]
Disclosure of available for sale financial assets [line items]
Number of shares acquired			127,901
Percentage of shares owned			100.00%
Itau Administradora General de Fondos S.A. [member]
Disclosure of available for sale financial assets [line items]
Number of shares acquired		1
Percentage of shares owned		100.00%
Itau Corpbanca Corredores de Bolsa Limitada [member]
Disclosure of available for sale financial assets [line items]
Number of shares acquired				2
Percentage of shares owned				100.00%

Equity - Schedule of Non-cont_3

Equity - Schedule of Non-controlling Interest Movement (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of subsidiaries [line items]
Beginning balance	$ 218,082	$ 217,280	$ 238,969
Increase participation in Colombia	(151,531)
Comprehensive income	27,894	3,959	(21,689)
Ending balance	94,445	218,082	217,280
Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Disclosure of subsidiaries [line items]
Beginning balance		(3,157)
Ending balance			(3,157)
Revised For IFRS 9 [member]
Disclosure of subsidiaries [line items]
Beginning balance	$ 218,082	214,123	238,969
Ending balance		$ 218,082	$ 214,123

Equity - Schedule of Main Subsi

Equity - Schedule of Main Subsidiary With Non-controlling Interest (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Group participation	12.90%	33.72%
Banco CorpBanca Colombia S.A [member]
Disclosure of subsidiaries [line items]
Group participation	87.10%	66.28%

Equity - Schedule of Consolidat

Equity - Schedule of Consolidation Elimination Adjustments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Summary Statements of Financial Position
Total net assets (liabilities)	$ 3,326,338	$ 3,437,560
Accumulated non-controlling interest	94,445	218,082	$ 217,280	$ 238,969
Non controlling Interest [Member]
Summary Statements of Financial Position
Accumulated non-controlling interest	94,445	218,082	217,280
Banco CorpBanca Colombia S.A [member] | Non controlling Interest [Member]
Summary Statements of Financial Position
Current assets	5,383,819	4,669,275	4,589,487
Current liabilities	(3,112,252)	(3,523,186)	(3,939,253)
Net current assets (liabilities)	2,271,567	1,146,089	650,234
Non-current assets	1,174,958	1,664,700	1,690,890
Non-current liabilities	(2,729,714)	(2,160,781)	(1,697,961)
Net non-current assets (liabilities)	(1,554,756)	(496,081)	(7,071)
Total net assets (liabilities)	716,811	650,008	643,163
Accumulated non-controlling interest	$ 93,967	$ 217,673	$ 216,883

Equity - Summary of Income Stat

Equity - Summary of Income Statements (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income statement [line items]
Income of the period	$ 1,773,640	$ 1,739,317	$ 1,646,329
Non-controlling interests income	124,522	166,854	62,825
Banco CorpBanca Colombia S.A [member] | Non controlling Interest [Member]
Disclosure of income statement [line items]
Interest income and readjustments	528,150	553,937	579,176
Income of the period	16,490	(13,087)	(14,830)
Non-controlling interests income	$ 10,713	$ (4,500)	$ (5,001)

Equity - Summary of Cash Flows

Equity - Summary of Cash Flows Statements (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of consolidated statement of cash flows [line items]
Net cash flows provided by (used in) operating activities	$ 354,497	$ 695,755	$ (1,390,863)
Net cash flows provided by (used in) investing activities	(315,627)	(41,874)	(87,155)
Net cash flows provided by (used in) financing activities	(69,923)	(449,272)	349,602
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	84,887	287,963	(1,041,655)
Banco CorpBanca Colombia S.A [member] | Non controlling Interest [Member]
Disclosure of consolidated statement of cash flows [line items]
Net cash flows provided by (used in) operating activities	(359,168)	232,480	16,822
Net cash flows provided by (used in) investing activities	111,607	(145,665)	(158,402)
Net cash flows provided by (used in) financing activities	115,303	(24,122)	35,937
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	$ (132,258)	$ 62,693	$ (105,643)

Equity - Schedule of Consolid_2

Equity - Schedule of Consolidated Comprehensive Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of subsidiaries [line items]
Income	$ 124,522	$ 166,854	$ 62,825
Financial instruments at fair value through other comprehensive income	21,703	(1,441)
Available for sale investments			9,966
Cash flow hedge	(6,792)	11,289	(127)
Changes in the fair value of equity investments at fair value through other comprehensive income	814	482
Available for sale investments			(3,333)
Net investment in foreign operations hedges	14,373	10,565	(14,211)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) FOR THE YEAR	48,189	28,333	(36,980)
Comprehensive income (loss) for the year	172,711	195,187	25,845
Total Attributable to Equity Holders of the Bank [Member]
Disclosure of subsidiaries [line items]
Income	113,684	171,331	67,821
Financial instruments at fair value through other comprehensive income	21,025	(614)
Available for sale investments			6,220
Hedge of net investment in foreign operations	(46,786)	(35,338)	49,824
Cash flow hedge	(6,381)	11,289	(127)
Exchange differences	56,487	38,366	(59,865)
Changes in the fair value of equity investments at fair value through other comprehensive income	540	319
Defined benefits obligations	(3,248)	(500)	(138)
Subtotals	21,637	13,522	(4,086)
Financial instruments at fair value through other comprehensive income	(5,801)	(1,468)
Available for sale investments			(2,173)
Net investment in foreign operations hedges		9,541	(14,068)
Hedge of net investment in foreign operations	14,373
Cash flow hedge	(185)	(1,669)	44
Defined benefits obligations	1,109	(29)	(4)
Subtotals	9,496	6,375	(16,201)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) FOR THE YEAR	(31,133)	19,897	(20,287)
Comprehensive income (loss) for the year	144,817	191,228	47,534
Non controlling Interest [Member]
Disclosure of subsidiaries [line items]
Income	10,838	(4,477)	(4,996)
Financial instruments at fair value through other comprehensive income	678	(664)
Available for sale investments			3,746
Hedge of net investment in foreign operations		(1,195)	(627)
Cash flow hedge	(411)
Exchange differences	17,368	10,244	(18,437)
Changes in the fair value of equity investments at fair value through other comprehensive income	274	163
Defined benefits obligations	(1,184)	(254)	(70)
Subtotals	16,725	8,131	(15,388)
Financial instruments at fair value through other comprehensive income	(125)	(704)
Available for sale investments			(1,160)
Net investment in foreign operations hedges		1,024	(143)
Cash flow hedge	23
Defined benefits obligations	433	(15)	(2)
Subtotals	331	305	(1,305)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) FOR THE YEAR	(17,056)	8,436	(16,693)
Comprehensive income (loss) for the year	27,894	3,959	(21,689)
Consolidated Statement Of Comprehensive Income [member]
Disclosure of subsidiaries [line items]
Income	124,522	166,854	62,825
Financial instruments at fair value through other comprehensive income	21,703	(1,441)
Available for sale investments			9,966
Hedge of net investment in foreign operations	(46,786)	(36,533)	49,197
Cash flow hedge	(6,792)	11,289	(127)
Exchange differences	73,855	48,610	(78,302)
Changes in the fair value of equity investments at fair value through other comprehensive income	814	482
Defined benefits obligations	(4,432)	(754)	(208)
Subtotals	38,362	21,653	(19,474)
Financial instruments at fair value through other comprehensive income	(5,926)	(2,172)
Available for sale investments			(3,333)
Net investment in foreign operations hedges		10,565	(14,211)
Hedge of net investment in foreign operations	14,373
Cash flow hedge	(162)	(1,669)	44
Defined benefits obligations	1,542	(44)	(6)
Subtotals	9,827	6,680	(17,506)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) FOR THE YEAR	(48,189)	28,333	(36,980)
Comprehensive income (loss) for the year	$ 172,711	$ 195,187	$ 25,845

Interest Income and Interest _3

Interest Income and Interest Expense - Schedule of Composition of Interest Income and Inflation-indexing (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about hedged items [line items]
Totals	$ 1,773,640	$ 1,739,317	$ 1,646,329
Investments under Agreements to Resell [Member]
Disclosure of detailed information about hedged items [line items]
Totals	4,994	4,988	6,645
Loans and receivables to banks [member]
Disclosure of detailed information about hedged items [line items]
Totals	4,361	5,013	5,460
Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	969,673	931,661	941,145
Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	310,297	303,962	247,243
Consumer loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	379,165	372,342	360,332
Financials investments [member]
Disclosure of detailed information about hedged items [line items]
Totals	94,653	120,334	78,830
Other interest income [member]
Disclosure of detailed information about hedged items [line items]
Totals	20,131	20,732	10,201
Gain (loss) from accounting hedges [member]
Disclosure of detailed information about hedged items [line items]
Totals	(9,634)	(19,715)	(3,527)
Hedged of interest [member]
Disclosure of detailed information about hedged items [line items]
Totals	1,528,612	1,487,381	1,509,566
Hedged of interest [member] | Investments under Agreements to Resell [Member]
Disclosure of detailed information about hedged items [line items]
Totals	4,996	4,988	6,643
Hedged of interest [member] | Loans and receivables to banks [member]
Disclosure of detailed information about hedged items [line items]
Totals	4,361	5,013	5,460
Hedged of interest [member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	850,212	816,193	872,416
Hedged of interest [member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	202,945	196,598	188,094
Hedged of interest [member] | Consumer loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	379,030	372,148	360,268
Hedged of interest [member] | Financials investments [member]
Disclosure of detailed information about hedged items [line items]
Totals	79,114	101,274	70,556
Hedged of interest [member] | Other interest income [member]
Disclosure of detailed information about hedged items [line items]
Totals	17,588	10,882	9,656
Hedged of interest [member] | Gain (loss) from accounting hedges [member]
Disclosure of detailed information about hedged items [line items]
Totals	(9,634)	(19,715)	(3,527)
Hedged of inflation adjustments [member]
Disclosure of detailed information about hedged items [line items]
Totals	245,028	251,936	136,763
Hedged of inflation adjustments [member] | Investments under Agreements to Resell [Member]
Disclosure of detailed information about hedged items [line items]
Totals	(2)		2
Hedged of inflation adjustments [member] | Commercial loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	119,461	115,468	68,729
Hedged of inflation adjustments [member] | Mortgage loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	107,352	107,364	59,149
Hedged of inflation adjustments [member] | Consumer loans [member]
Disclosure of detailed information about hedged items [line items]
Totals	135	194	64
Hedged of inflation adjustments [member] | Financials investments [member]
Disclosure of detailed information about hedged items [line items]
Totals	15,539	19,060	8,274
Hedged of inflation adjustments [member] | Other interest income [member]
Disclosure of detailed information about hedged items [line items]
Totals	$ 2,543	$ 9,850	$ 545

Interest Income and Interest _4

Interest Income and Interest Expense - Schedule of Detail of the Amount Due for Interest and Readjustments (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about hedged items [line items]
Totals	$ (873,222)	$ (851,654)	$ (863,347)
Deposits and other demand liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(52,401)	(49,677)	(72,871)
Obligations under repurchase agreements [member]
Disclosure of detailed information about hedged items [line items]
Totals	(26,349)	(29,664)	(32,677)
Time deposits and other time liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(377,608)	(385,734)	(433,237)
Interbank borrowings [member]
Disclosure of detailed information about hedged items [line items]
Totals	(81,557)	(69,260)	(54,385)
Debt instruments issued [member]
Disclosure of detailed information about hedged items [line items]
Totals	(342,473)	(322,252)	(282,884)
Other financial liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(501)	(752)	(114)
Lease obligations [member]
Disclosure of detailed information about hedged items [line items]
Totals	(5,126)
Other interest expenses [member]
Disclosure of detailed information about hedged items [line items]
Totals	(3,306)	(4,689)	(2,518)
Gain (loss) from accounting hedges [member]
Disclosure of detailed information about hedged items [line items]
Totals	16,099	10,374	15,339
Hedged of interest [member]
Disclosure of detailed information about hedged items [line items]
Totals	(730,996)	(708,651)	(772,956)
Hedged of interest [member] | Deposits and other demand liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(52,181)	(49,536)	(72,732)
Hedged of interest [member] | Obligations under repurchase agreements [member]
Disclosure of detailed information about hedged items [line items]
Totals	(26,349)	(29,660)	(32,677)
Hedged of interest [member] | Time deposits and other time liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(369,048)	(370,206)	(420,190)
Hedged of interest [member] | Interbank borrowings [member]
Disclosure of detailed information about hedged items [line items]
Totals	(81,557)	(69,054)	(51,922)
Hedged of interest [member] | Debt instruments issued [member]
Disclosure of detailed information about hedged items [line items]
Totals	(212,346)	(199,420)	(210,104)
Hedged of interest [member] | Other financial liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(501)	(752)	(114)
Hedged of interest [member] | Lease obligations [member]
Disclosure of detailed information about hedged items [line items]
Totals	(5,034)
Hedged of interest [member] | Other interest expenses [member]
Disclosure of detailed information about hedged items [line items]
Totals	(79)	(397)	(556)
Hedged of interest [member] | Gain (loss) from accounting hedges [member]
Disclosure of detailed information about hedged items [line items]
Totals	16,099	10,374	15,339
Hedged of inflation adjustments [member]
Disclosure of detailed information about hedged items [line items]
Totals	(142,226)	(143,003)	(90,391)
Hedged of inflation adjustments [member] | Deposits and other demand liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(220)	(141)	(139)
Hedged of inflation adjustments [member] | Obligations under repurchase agreements [member]
Disclosure of detailed information about hedged items [line items]
Totals		(4)
Hedged of inflation adjustments [member] | Time deposits and other time liabilities [member]
Disclosure of detailed information about hedged items [line items]
Totals	(8,560)	(15,528)	(13,047)
Hedged of inflation adjustments [member] | Interbank borrowings [member]
Disclosure of detailed information about hedged items [line items]
Totals		(206)	(2,463)
Hedged of inflation adjustments [member] | Debt instruments issued [member]
Disclosure of detailed information about hedged items [line items]
Totals	(130,127)	(122,832)	(72,780)
Hedged of inflation adjustments [member] | Lease obligations [member]
Disclosure of detailed information about hedged items [line items]
Totals	(92)
Hedged of inflation adjustments [member] | Other interest expenses [member]
Disclosure of detailed information about hedged items [line items]
Totals	$ (3,227)	$ (4,292)	$ (1,962)

Fee and Commission Income and_3

Fee and Commission Income and Expense - Services Rendered by the Bank and Its Subsidiaries and Correspond (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fees and income from services [abstract]
Fees and commissions from lines of credits and overdrafts	$ 1,553	$ 5,292	$ 3,306
Fees and commissions from guarantees and letters of credit	15,147	15,317	14,776
Fees and commissions from card services	75,574	72,932	63,388
Fees and commissions from accounts management	15,406	11,512	12,024
Fees and commissions from collections and payments	23,921	20,359	25,359
Fees and commissions from brokerage and securities management	9,844	10,966	13,183
Fees and commissions from asset management	25,845	24,718	25,965
Compensation for insurance brokerage	35,783	36,693	26,096
Investment banking and advisory fees	20,657	19,403	8,162
Fees and commissions from student loans ceded	5,735	5,300	4,680
Commissions on loan transactions	893	651	2,560
Commissions for mortgage loans	1,300	1,486	1,112
Other fees from services rendered	10,321	10,982	12,088
Other commissions earned	2,217	2,345	3,721
Totals	$ 244,196	$ 237,956	$ 216,420

Fees and Commission Income and

Fees and Commission Income and Expense - Summary of Expenses for Commissions Accrued in the Year for the Operations (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fees and income from services [abstract]
Compensation for cards transactions	$ (55,232)	$ (35,676)	$ (23,439)
Fees and commissions for securities transactions	(2,716)	(2,963)	(4,855)
Commissions paid for foreign trade transactions	(2,300)	(2,550)	(2,449)
Commissions paid for customer loyalty program benefits	(3,725)	(2,607)	(1,439)
Commissions paid for services to customers management	(3,905)	(3,455)	(3,157)
Other commissions paid	(1,914)	(4,576)	(3,510)
Totals	$ (69,792)	$ (51,827)	$ (38,849)

Fee and Commission Income and_4

Fee and Commission Income and Expense - The Income and Expenses for Commissions Generated by the Segment (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	$ 1,553	$ 5,292	$ 3,306
Fees and commissions from guarantees and letters of credit	15,147	15,317	14,776
Fees and commissions from card services	75,574	72,932	63,388
Fees and commissions from accounts management	15,406	11,512	12,024
Fees and commissions from collections and payments	23,921	20,359	25,359
Fees and commissions from brokerage and securities management	9,844	10,966	13,183
Fees and commissions from asset management	25,845	24,718	25,965
Compensation for insurance brokerage	35,783	36,693	26,096
Investment banking and advisory fees	20,657	19,403	8,162
Fees and commissions from student loans ceded	5,735	5,300	4,680
Commissions on loan transactions	893	651	2,560
Commissions for mortgage loans	1,300	1,486	1,112
Other commissions earned	10,321	10,982	12,088
Totals	(244,196)	(237,956)	(216,420)
Compensation for cards transactions	55,232	35,676	23,439
Fees and commissions for securities transactions	2,716	2,963	4,855
Commissions paid for foreign trade transactions	2,300	2,550	2,449
Commissions paid for customer loyalty program benefits	3,725	2,607	1,439
Commissions paid for services to customers management	3,905	3,455	3,157
Other commissions paid	(1,914)	(4,576)	(3,510)
Totals	69,792	$ 51,827	$ 38,849
Cash-generating units [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	1,554
Fees and commissions from guarantees and letters of credit	15,146
Fees and commissions from card services	75,575
Fees and commissions from accounts management	15,406
Fees and commissions from collections and payments	23,922
Fees and commissions from brokerage and securities management	9,842
Fees and commissions from asset management	25,845
Compensation for insurance brokerage	35,783
Investment banking and advisory fees	20,657
Fees and commissions from student loans ceded	7,057
Commissions on loan transactions	473
Commissions for mortgage loans	753
Other commissions earned	12,183
Totals	(244,196)
Compensation for cards transactions	(55,232)
Fees and commissions for securities transactions	(2,716)
Other commissions paid	(11,844)
Totals	69,792
Cash-generating units [member] | Transferred to long time [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	1,453
Fees and commissions from guarantees and letters of credit	12,086
Totals	(13,539)
Cash-generating units [member] | Transferred in a moment concrete [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	101
Fees and commissions from guarantees and letters of credit	3,060
Fees and commissions from card services	75,575
Fees and commissions from accounts management	15,406
Fees and commissions from collections and payments	10,385
Fees and commissions from brokerage and securities management	9,842
Fees and commissions from asset management	25,845
Investment banking and advisory fees	20,657
Fees and commissions from student loans ceded	7,057
Commissions on loan transactions	473
Commissions for mortgage loans	753
Other commissions earned	12,183
Totals	(181,337)
Compensation for cards transactions	(55,232)
Fees and commissions for securities transactions	(2,716)
Other commissions paid	(11,844)
Totals	69,792
Cash-generating units [member] | Model of accrual [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from collections and payments	13,537
Compensation for insurance brokerage	35,783
Totals	(49,320)
Cash-generating units [member] | Chile [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	1,453
Fees and commissions from guarantees and letters of credit	12,086
Fees and commissions from card services	49,393
Fees and commissions from accounts management	12,534
Fees and commissions from collections and payments	15,651
Fees and commissions from brokerage and securities management	5,785
Fees and commissions from asset management	15,727
Compensation for insurance brokerage	35,783
Investment banking and advisory fees	20,657
Fees and commissions from student loans ceded	7,057
Commissions on loan transactions	473
Commissions for mortgage loans	753
Other commissions earned	1,223
Totals	(178,575)
Compensation for cards transactions	(29,950)
Fees and commissions for securities transactions	(1,557)
Other commissions paid	(4,625)
Totals	36,132
Cash-generating units [member] | Colombia [member]
Disclosure of information for cash-generating units [line items]
Fees and commissions from lines of credits and overdrafts	101
Fees and commissions from guarantees and letters of credit	3,060
Fees and commissions from card services	26,182
Fees and commissions from accounts management	2,872
Fees and commissions from collections and payments	8,271
Fees and commissions from brokerage and securities management	4,057
Fees and commissions from asset management	10,118
Other commissions earned	10,960
Totals	(65,621)
Compensation for cards transactions	(25,282)
Fees and commissions for securities transactions	(1,159)
Other commissions paid	(7,219)
Totals	$ 33,660

Net Income (Expense) from Fin_3

Net Income (Expense) from Financial Operations - Schedule of Trading and Investment Income Recognized (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure net trading and investment income [abstract]
Trading instruments (securities)	$ 17,287	$ 2,527	$ 43,323
Financial derivative contracts (trading)	77,040	152,732	(63,992)
Sale of loans and accounts receivable from customers	14,588	1,602	15,121
Net gain on sale of financial instruments at fair value through other comprehensive income	35,489	13,765
Net gain on sale of available for sale investments			13,641
Others	(770)	2,129	175
Total	$ 143,634	$ 172,755	$ 8,268

Net Foreign Exchange Gain (Lo_3

Net Foreign Exchange Gain (Loss) - Schedule of Net Foreign Exchange Gains (Losses) (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net foreign exchange gain (loss)
Gain (loss) on net foreign currency exchange positions	$ 37,404	$ (64,278)	$ 131,196
Other foreign currency exchange gains (losses)	4,128	5,421	1,537
Subtotals	41,532	(58,857)	132,733
Net exchange rate adjustments gain (loss)
Adjustments for loans and accounts receivable from customers	702	93	(82)
Adjustment for investment instruments		105	(824)
Adjustment for other assets and liabilities	2	(322)	1,385
Net gain (loss) from hedge accounting	(14,610)	41,016	(87,047)
Subtotals	(13,906)	40,892	(86,568)
Totals	$ 27,626	$ (17,965)	$ 46,165

Provisions for Impairment of _3

Provisions for Impairment of Financial Assets - Schedule of Changes in Provision for Loan Losses Recorded on the Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Provisions released
Credit risk provisions	$ 441,343	$ 328,266	$ 346,980
Provisions for loan losses [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(765,392)	(1,290,571)
Charge to income for provisions used	324,049	962,305
Provisions released
Recovery of loans previously charged-off	58,665	48,468
Net charge to income	(382,678)	(279,798)
Provisions for loan losses [member] | Interbank loans [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(507)	(344)	(226)
Charge to income for provisions used	765	131	209
Provisions released
Net charge to income	258	(213)	(17)
Provisions for loan losses [member] | Financial instruments at FVTOCI [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(2,223)	(25)
Charge to income for provisions used	19	411
Provisions released
Net charge to income	(2,204)	386
Provisions for loan losses [member] | Financial Instruments at amortized cost [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(9)
Charge to income for provisions used		50
Provisions released
Net charge to income	(9)	50
Provisions for loan losses [member] | Contingent loans [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(25,577)	(14,511)
Charge to income for provisions used	46,673	28,354
Provisions released
Net charge to income	21,096	13,843
Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(819,494)
Charge to income for provisions used			472,514
Provisions released
Recovery of loans previously charged-off			31,563
Net charge to income			(315,417)
Individually assessed for credit losses [member] | Provisions for loan losses [member] | Interbank loans [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(226)
Charge to income for provisions used			209
Individually assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(338,927)
Charge to income for provisions used			302,713
Collectively assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(480,567)
Charge to income for provisions used			169,801
Commercial loans [member] | Provisions for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(423,043)	(634,886)
Charge to income for provisions used	178,243	474,192
Provisions released
Recovery of loans previously charged-off	22,213	19,921
Net charge to income	(222,587)	(140,773)
Commercial loans [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(442,872)
Charge to income for provisions used			336,042
Provisions released
Recovery of loans previously charged-off			13,236
Net charge to income			(93,594)
Commercial loans [member] | Individually assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(338,701)
Charge to income for provisions used			302,504
Commercial loans [member] | Collectively assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(104,171)
Charge to income for provisions used			33,538
Mortgage loans [member] | Provisions for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(35,031)	(78,185)
Charge to income for provisions used	9,102	78,873
Provisions released
Recovery of loans previously charged-off	2,791	2,588
Net charge to income	(23,138)	3,276
Mortgage loans [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(63,699)
Charge to income for provisions used			31,310
Provisions released
Recovery of loans previously charged-off			1,908
Net charge to income			(30,481)
Mortgage loans [member] | Collectively assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(63,699)
Charge to income for provisions used			31,310
Consumer loans [member] | Provisions for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of financial assets [line items]
(Loss) for provisions established	(279,002)	(562,620)
Charge to income for provisions used	89,247	380,294
Provisions released
Recovery of loans previously charged-off	33,661	25,959
Net charge to income	$ (156,094)	$ (156,367)
Consumer loans [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(312,697)
Charge to income for provisions used			104,953
Provisions released
Recovery of loans previously charged-off			16,419
Net charge to income			(191,325)
Consumer loans [member] | Collectively assessed for credit losses [member] | Provisions for loan losses [member] | Loans and accounts receivables from customers [member]
Disclosure of financial assets [line items]
(Loss) for provisions established			(312,697)
Charge to income for provisions used			$ 104,953

Provisions for Impairment of _4

Provisions for Impairment of Financial Assets - Schedule of Established and Released Provision Amounts (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Provisions established	$ (737,583)	$ (1,276,035)	$ (819,494)
Released provisions	277,357	933,490	472,514
Totals	(460,226)	(342,545)
Commercial loans [member]
Disclosure of financial assets [line items]
Provisions established	(423,043)	(634,886)	(442,872)
Released provisions	178,243	474,192	336,042
Totals	(244,800)	(160,694)
Mortgage loans [member]
Disclosure of financial assets [line items]
Provisions established	(35,031)	(78,185)	(63,699)
Released provisions	9,102	78,873	31,310
Totals	(25,929)	688
Consumer loans [member]
Disclosure of financial assets [line items]
Provisions established	(279,002)	(562,620)	(312,697)
Released provisions	89,247	380,294	104,953
Totals	(189,755)	(182,326)
Sub Total [member]
Disclosure of financial assets [line items]
Provisions established	(737,076)	(1,275,691)	(819,268)
Released provisions	276,592	933,359	472,305
Totals	(460,484)	(342,332)
Bank [member]
Disclosure of financial assets [line items]
Provisions established	(507)	(344)	(226)
Released provisions	765	131	209
Totals	$ 258	$ (213)
Individually assessed for credit losses [member]
Disclosure of financial assets [line items]
Provisions established			(338,927)
Released provisions			302,713
Individually assessed for credit losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Provisions established			(338,701)
Released provisions			302,504
Individually assessed for credit losses [member] | Sub Total [member]
Disclosure of financial assets [line items]
Provisions established			(338,701)
Released provisions			302,504
Individually assessed for credit losses [member] | Bank [member]
Disclosure of financial assets [line items]
Provisions established			(226)
Released provisions			209
Collectively assessed for credit losses [member]
Disclosure of financial assets [line items]
Provisions established			(480,567)
Released provisions			169,801
Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Provisions established			(104,171)
Released provisions			33,538
Collectively assessed for credit losses [member] | Mortgage loans [member]
Disclosure of financial assets [line items]
Provisions established			(63,699)
Released provisions			31,310
Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Provisions established			(312,697)
Released provisions			104,953
Collectively assessed for credit losses [member] | Sub Total [member]
Disclosure of financial assets [line items]
Provisions established			(480,567)
Released provisions			$ 169,801

Personnel Salaries and Expens_3

Personnel Salaries and Expenses - Schedule of Personnel Salaries Expenses (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Personnel salaries expenses [abstract]
Personnel compensation	$ (181,431)	$ (176,083)	$ (174,029)
Bonuses or gratifications	(82,129)	(84,754)	(68,946)
Compensation for years of service	(12,830)	(12,477)	(18,803)
Training expenses	(825)	(804)	(734)
Health and life insurance	(2,910)	(2,590)	(3,487)
Other personnel expenses	(18,084)	(18,039)	(15,324)
Totals	$ (298,209)	$ (294,747)	$ (281,323)

Administrative Expenses - Sched

Administrative Expenses - Schedule of Administration Expenses (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Administration expenses [abstract]
Administrative expenses	$ (177,919)	$ (214,666)	$ (217,130)
Maintenance and repair of fixed assets	(35,213)	(31,673)	(34,754)
Office lease		(36,201)	(36,482)
Equipment lease		(2,925)	(2,890)
Insurance payments	(16,389)	(20,704)	(22,624)
Office supplies	(1,679)	(1,885)	(2,228)
IT and communications expenses	(47,878)	(43,667)	(41,872)
Utilities and other services	(4,558)	(4,443)	(5,022)
Security and transportation of securities services	(5,232)	(5,250)	(4,691)
Representation and personnel travel expenses	(3,345)	(3,612)	(3,347)
Legal and notarial expenses	(20,384)	(15,112)	(9,546)
Technical report fees	(13,647)	(11,626)	(11,274)
Professional services fees	(1,656)	(1,825)	(2,358)
Fees for classification of titles		(134)	(1,613)
Fines	(1,947)	(6,059)	(75)
ATM maintenance and management services	(2,436)	(2,630)	(5,837)
Temporary external services	(1,032)	(545)	(812)
Postage and mailing expenses	(1,110)	(1,341)	(1,397)
Internal events	(648)	(248)	(666)
Commercial programs	(1,246)	(1,242)	(1,253)
Credit card management services	(4,051)	(3,102)	(4,363)
Other administrative expenses	(15,468)	(20,442)	(24,026)
Subcontracted services	(22,134)	(22,303)	(24,724)
Data processing	(12,990)	(13,044)	(14,733)
Products sales		(275)	(832)
Others	(9,144)	(8,984)	(9,159)
Board of Directors compensation	(1,350)	(1,529)	(1,394)
Marketing and advertising	(13,353)	(14,384)	(16,268)
Real estate taxes, contributions and levies	(34,125)	(38,854)	(46,106)
Real estate taxes	(286)	(393)	(671)
Patents	(1,206)	(1,121)	(1,430)
Other taxes	(24,467)	(29,324)	(36,031)
Contributions to SBIF	(8,166)	(8,016)	(7,974)
Totals	$ (248,881)	$ (291,736)	$ (305,622)

Depreciation Amortization and I

Depreciation Amortization and Impairment - Schedule of Depreciation and Amortization Expenses (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [abstract]
Depreciation of property, plant and equipment	$ (21,169)	$ (20,659)	$ (19,370)
Amortization of intangible assets	(74,140)	(66,158)	(62,475)
Depreciation of the period	(31,857)
Totals	$ (127,166)	$ (86,817)	$ (81,845)

Depreciation Amortization and_2

Depreciation Amortization and Impairment - Schedule of Impairment losses (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Subtotal Non-financial assets	$ (728)	$ (28)	$ (27)
Nonfinancial assets property plant and equipment [member]
Disclosure of financial assets [line items]
Subtotal Non-financial assets	(489)	(28)	(27)
Total	(728)	$ (28)	$ (27)
Non Financial Assets Goodwill and Intangibles [Member]
Disclosure of financial assets [line items]
Subtotal Non-financial assets	$ (239)

Depreciation Amortization and_3

Depreciation Amortization and Impairment - Schedule of CGU Book Value (Detail) - Funds Managed by Related Subsidiaries [Member] - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Chile [member]
Disclosure of geographical areas [line items]
Total	$ 2,366,517	$ 2,600,114
Colombia [member]
Disclosure of geographical areas [line items]
Total	$ 959,821	$ 843,943

Depreciation Amortization and_4

Depreciation Amortization and Impairment - Schedule of Respective Authorizations were Obtained in Brazil, Chile and Colombia, Recording and Allocating Goodwill (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Chile [member]
Disclosure of geographical areas [line items]
Goodwill impairment testing	$ 904,868	$ 904,868
Colombia [member]
Disclosure of geographical areas [line items]
Goodwill impairment testing	$ 246,151	$ 230,524

Depreciation Amortization and_5

Depreciation Amortization and Impairment - Schedule of Assumptions Used in Calculating the Recoverable Amount (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rate	11.30%	11.99%
Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity rate	5.20%	5.20%
Projected inflation rate	3.00%	3.00%
Discount rate	10.00%	10.59%
Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity rate	6.50%	6.50%
Projected inflation rate	3.00%	3.00%
Discount rate	11.30%	11.99%
Bottom of Range [Member] | Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Loans growth	9.05%	9.65%
Solvency index limit	11.40%	12.50%
Bottom of Range [Member] | Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity rate	5.90%	5.90%
Loans growth	9.70%	8.60%
Solvency index limit	10.60%	11.50%
Top of Range [Member] | Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Loans growth	10.28%	11.10%
Solvency index limit	12.40%	14.70%
Top of Range [Member] | Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity rate	7.10%	7.10%
Loans growth	10.30%	10.40%
Solvency index limit	14.00%	4.00%

Depreciation Amortization and_6

Depreciation Amortization and Impairment - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019
Chile [member]
Disclosure of geographical areas [line items]
Projection of loan deposit	9.92%
Annual average ratio of demand deposits and term deposit balances	3.70%
Colombia [member]
Disclosure of geographical areas [line items]
Projection of loan deposit	10.00%
Annual average ratio of demand deposits and term deposit balances	4.00%

Depreciation Amortization and_7

Depreciation Amortization and Impairment - Schedule of Impairment Assessment Process (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recoverable Amount / Carrying Value	121.38%	113.00%
Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recoverable Amount / Carrying Value	107.09%	102.90%

Depreciation Amortization and_8

Depreciation Amortization and Impairment - Schedule of Discount Rates and Growth in Perpetuity (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rates	12.35%	12.21%
Perpetuity growth rate	6.28%	6.29%
Discount rates	11.30%	11.99%
Perpetuity growth rate	6.50%	6.50%
Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rates	10.00%	10.59%
Range	5.20%	5.20%
Chile [member] | Bottom of Range [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity growth rate	30.00%
Chile [member] | Top of Range [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity growth rate	50.00%
Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rates	11.30%	11.99%
Range	6.50%	6.50%
Colombia [member] | Bottom of Range [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity growth rate	30.00%
Range	10.70%	11.39%
Range (RA/CV)	91.70%	93.01%
Range	5.90%	5.90%
Range (RA/CV)	93.37%	94.72%
Colombia [member] | Top of Range [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Perpetuity growth rate	55.00%
Range	11.90%	12.59%
Range (RA/CV)	120.90%	118.21%
Range	7.10%	7.10%
Range (RA/CV)	118.71%	116.05%

Depreciation Amortization and_9

Depreciation Amortization and Impairment - Schedule of Cash Flows (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Chile [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rates	12.55%	13.22%
Recoverable amount/Carrying value	145.80%	126.50%
Colombia [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Discount rates	16.90%	18.08%
Recoverable amount/Carrying value	134.43%	111.90%

Other Operating Income and Ex_3

Other Operating Income and Expenses - Schedule of Other Operating Income (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income from assets received in lieu of payment
Gain on sales of assets received in lieu of payment	$ 5,449	$ 8,562	$ 5,566
Other income	13,163	30	2,578
Subtotals	18,612	8,592	8,144
Other income
Compensations from insurance companies	6	53
Gain on sale of property, plant and equipment	2,248	5,519	14,119
Recovery of leased assets	73	1,349	522
Other operating income, subsidiaries	3,020	2,158	3,092
Gain on sale of leased assets	1,914	1,447	19
Other operating income	432	199	173
Marketing contribution, insurance companies	4,538	3,626	4,128
Other operating income, leases	267	724	446
Other income for recovery foreign expenses	747	620	420
Recoveries from expenses provisions	7,243	1,166	2,352
Other income	5,872	1,203	8,117
Subtotals	26,360	18,064	33,388
Totals	44,972	$ 26,656	$ 41,532
Credit card loyalty benefits expenses	$ 7,515

Other Operating Income and Ex_4

Other Operating Income and Expenses - Schedule of Other Operating Expenses (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of other operating income expense [abstract]
Provisions for assets received in lieu of payment	$ (18,062)	$ (16,132)	$ (14,472)
Maintenance expenses for assets received in lieu of payment	(1,663)	(1,301)	(714)
Subtotal	(19,725)	(17,433)	(15,186)
Provisions for contingencies
Other provisions for contingencies	(507)	(1,998)	(586)
Subtotals	(507)	(1,998)	(586)
Other expenses.
Loss on sale of property, plant and equipment	(655)	(307)	(1,099)
Credit card loyalty point benefits expenses		(14,306)	(13,238)
Operating loss expenses	(17,468)	(10,589)	(8,098)
Insurance expense (law 20,027)	(802)	(622)	(1,205)
Provision expense for recovered leased assets	(3,105)	(4,170)	(4,835)
Expenses loss on sale of assets	(9,386)
Banking expenses	(1,932)	(2,450)	(3,482)
Fines and penalties	(2,454)	(13,110)	(2,025)
Loss on damaged assets	(696)	(2,311)	(2,026)
Other expenses	(4,819)	(903)	(10,550)
Subtotals	(41,317)	(48,768)	(46,558)
Totals	$ (61,549)	$ (68,199)	$ (62,330)

Related Party Transactions - Sc

Related Party Transactions - Schedule of Loan Granted to Related Parties (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Loans and accounts receivable from customers
Loans and receivables to customers, net	$ 14,231	$ 62,261
Productive Companies [member]
Loans and accounts receivable from customers
Commercial loans	109,840	170,873
Allowance for loan losses	(1,705)	(2,550)
Loans and receivables to customers, net	108,135	168,323
Productive Companies [member] | Commercial loans [member]
Loans and accounts receivable from customers
Commercial loans	109,840	170,873
Investment Companies [member]
Loans and accounts receivable from customers
Commercial loans	11,910	64,073
Allowance for loan losses	(134)	(70)
Loans and receivables to customers, net	11,776	64,003
Investment Companies [member] | Commercial loans [member]
Loans and accounts receivable from customers
Commercial loans	11,910	64,073
Individuals [member]
Loans and accounts receivable from customers
Commercial loans	43,460	31,075
Allowance for loan losses	(283)	(63)
Loans and receivables to customers, net	43,177	31,012
Individuals [member] | Commercial loans [member]
Loans and accounts receivable from customers
Commercial loans	5,054	3,960
Individuals [member] | Mortgages loans [member]
Loans and accounts receivable from customers
Commercial loans	29,419	21,154
Individuals [member] | Consumer loans [member]
Loans and accounts receivable from customers
Commercial loans	$ 8,987	$ 5,961

Related Party Transactions - _2

Related Party Transactions - Schedule of Other Transactions with Related Parties (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Adexus S A [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	$ 567	$ 254
Bcycle Latam SPA [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	1,518	4,048	$ 552
Bolsa de Comercio de Santiago [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$		204
CAI Gestion Inmobiliaria S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	3	103	115
Combanc S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	366	350	378
Comder Contraparte Central S.A [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	910	902	1,067
Compania Chilena de Television S A [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	47
Corp Group Holding Inversiones Limitada [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	382	408	398
Corp Imagen y disenos S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	101	99	196
Corp Research S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	474	463	453
Everis ChileSA [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$		906	607
Hotel Corporation of Chile S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	39	94	265
Inmobiliaria Edificio Corpgroup S.A. [Member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	(15,625)
Effect on profit (loss) expense MCh$	1,994	4,693	4,725
Inmobiliaria Gabriela S A [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	121
Instituto De Estudios Bancarios Guillermo Subercaseaux [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$		121	143
Inversiones Corp Group Interhold Ltda [member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	2,537	2,476	3,097
Itau Chile Cia. de Seguros de Vida S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) income MCh$	46	93	7,819
Effect on profit (loss) expense MCh$	248	706	948
Itau Chile Inv. Serv.y Administracion S.A. [Member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	(441)
Effect on profit (loss) income MCh$		204
Effect on profit (loss) expense MCh$	220	141	650
Itau Unibanco S.A [Member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	349
Effect on profit (loss) income MCh$	2,051
Operadora de Tarjeta de Credito Nexus S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	3,037	2,909	3,836
Promoservice S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$			267
Pulso Editorial S.A [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	23	471	509
Redbanc S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	3,388	3,002	3,355
SMU SA, Rendic Hnos. S.A. [Member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	3,379	5,698	7,960
Effect on profit (loss) expense MCh$	2,319	2,262	2,221
Transbank S.A. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$	$ 14,208	15,469	14,586
VIP Asesoriasy Servicios Integrales Ltda. [Member]
Disclosure of transactions between related parties [line items]
Effect on profit (loss) expense MCh$		$ 129	$ 415

Related Party Transactions - _3

Related Party Transactions - Schedule of Donations (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fundacion Corpgroup Centro Cultural [member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	$ 1,325	$ 1,225	$ 1,302
Fundacion Descubreme [member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	204	194	200
Fundacion Itau [member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$	$ 170	$ 157	167
Fundacion De Inclusion Social Aprendamos [member]
Disclosure of transactions between related parties [line items]
Balances receivable (payable) MCh$			$ 5

Related Party Transactions - _4

Related Party Transactions - Schedule of Other Assets and Liabilities with Related Parties (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [line items]
Assets	$ 33,610,056	$ 29,323,338
Derivative financial instruments	3,154,957	1,368,957
Other assets	770,861	501,797
LIABILITIES	30,283,718	25,885,778
Derivative financial instruments	2,938,034	1,112,806
Other liabilities	708,914	521,795
Related parties1 [member]
Disclosure of transactions between related parties [line items]
Assets	28,474	26,854
Derivative financial instruments	27,458	25,708
Other assets	1,016	1,146
LIABILITIES	420,273	188,057
Derivative financial instruments	1,565	860
Current accounts and demand deposits	34,416	30,466
Time deposits and saving accounts	354,794	145,995
Other liabilities	$ 29,498	$ 10,736

Related Party Transactions - _5

Related Party Transactions - Schedule of Transactions with Key Personnel (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Credit Cards [member]
Disclosure of detailed information about financial instruments [line items]
MCh$	$ 122	$ 89
Consumer loans [member]
Disclosure of detailed information about financial instruments [line items]
MCh$	421	339
Commercial Loan 1 [member]
Disclosure of detailed information about financial instruments [line items]
MCh$	546	536
Mortgages1 [member]
Disclosure of detailed information about financial instruments [line items]
MCh$	$ 826	$ 2,325

Related Party Transactions - _6

Related Party Transactions - Schedule of Result of Transactions with Related Parties (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Income and expenses for commissions and services	$ (174,404)	$ (186,129)	$ (177,571)
Income [member]
Disclosure of transactions between related parties [line items]
Income and interest expenses and readjustments	11,269	3,748	10,146
Income and expenses for commissions and services	3,232	829	5,227
Profit and loss from trading	2,585	1,146	2,333
Operational support expenses	901	1,075	537
Other income and expenses	207	84	216
Totals	18,194	6,882	18,459
Expense [member]
Disclosure of transactions between related parties [line items]
Income and interest expenses and readjustments	7,328	2,970	4,902
Profit and loss from trading	888	501	1,534
Operational support expenses			99
Other income and expenses	327	222	390
Totals	$ 8,543	$ 3,693	$ 6,925

Related Party Transactions - _7

Related Party Transactions - Schedule of Payments to Board of Directors and Key Management Personnel (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related party transactions [abstract]
Short-term employee benefits	$ 31,364	$ 31,892	$ 27,759
Compensation for termination of contract	799	1,337	3,471
Totals	$ 32,163	$ 33,229	$ 31,230

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Compensation received by the key management personnel	$ 32,163	$ 33,229	$ 31,230
Key management personnel [member]
Disclosure of transactions between related parties [line items]
Compensation received by the key management personnel	$ 23,315	$ 22,185

Related Party Transactions - _8

Related Party Transactions - Schedule of Conformation of Key Personnel (Detail) Unit13 in Millions	Dec. 31, 2019	Dec. 31, 2018
Directors [member]
Disclosure of transactions between related parties [line items]
Number of executives	14	21
Chief Executive Officer [Member]
Disclosure of transactions between related parties [line items]
Number of executives	10	16
Division Manager [member]
Disclosure of transactions between related parties [line items]
Number of executives	39	50
Area Manager [member]
Disclosure of transactions between related parties [line items]
Number of executives	161	194
Managers [member]
Disclosure of transactions between related parties [line items]
Number of executives	143	163

Fair Value of Financial Asset_3

Fair Value of Financial Assets and Liabilities - Schedule of Determination of the Fair Value of Financial Instruments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Financial assets			$ 20,143,785	$ 20,143,785
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member]
ASSETS
Financial assets	$ 30,681,261	$ 26,793,396
LIABILITIES
Financial liabilities	29,396,701	25,147,418
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Deposits and other demand liabilities [member]
LIABILITIES
Financial liabilities	4,873,448	4,300,475
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Cash in process of being cleared [member]
LIABILITIES
Financial liabilities	164,573	247,165
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Obligations under repurchase agreements [member]
LIABILITIES
Financial liabilities	559,457	1,015,614
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Time deposits and other time liabilities [member]
LIABILITIES
Financial liabilities	11,620,187	10,121,111
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Financial derivative contracts [member]
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Interbank borrowings [member]
LIABILITIES
Financial liabilities	2,646,756	2,327,723
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Debt instruments issued [member]
LIABILITIES
Financial liabilities	6,408,356	6,010,124
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Lease obligations [member]
LIABILITIES
Financial liabilities	172,924
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Other financial obligations [Member]
LIABILITIES
Financial liabilities	12,966	12,400
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Cash and deposits in banks [member]
ASSETS
Financial assets	1,009,681	987,680
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Cash items in process of collection [member]
ASSETS
Financial assets	231,305	318,658
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member]
ASSETS
Financial assets	183,702	96,943
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Financial instruments at FVTOCI [member]
ASSETS
Financial assets	3,598,890	2,657,154
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Loans and receivables from banks, net [member]
ASSETS
Financial assets	22,254,697	20,714,370
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Financial Instruments at amortized cost [member]
ASSETS
Financial assets	115,658	198,923
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Investments under Agreements to Resell [Member]
ASSETS
Financial assets	75,975	109,467
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Financial derivative contracts [member]
ASSETS
Financial assets	3,154,957	1,368,957
Not measured at fair value in statement of financial position but for which fair value is disclosed [member] | IFRS9 [member] | Interbank loans [member]
ASSETS
Financial assets	56,396	341,244
Recurring Fair Value Measurement [Member] | IFRS9 [member]
ASSETS
Financial assets	6,937,549	4,123,054
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member]
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member]
ASSETS
Financial assets	183,702	96,943
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member]
ASSETS
Financial assets	3,598,890	2,657,154
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member]
ASSETS
Financial assets	3,154,957	1,368,957
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member]
ASSETS
Financial assets	24,800,985	22,784,462
LIABILITIES
Financial liabilities	27,368,510	24,358,412
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Deposits and other demand liabilities [member]
LIABILITIES
Financial liabilities	4,873,448	4,300,475
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash in process of being cleared [member]
LIABILITIES
Financial liabilities	164,573	247,165
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Obligations under repurchase agreements [member]
LIABILITIES
Financial liabilities	559,457	1,015,614
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Time deposits and other time liabilities [member]
LIABILITIES
Financial liabilities	11,692,076	10,135,722
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Interbank borrowings [member]
LIABILITIES
Financial liabilities	2,646,176	2,335,509
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Debt instruments issued [member]
LIABILITIES
Financial liabilities	7,244,551	6,311,527
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Lease obligations [member]
LIABILITIES
Financial liabilities	175,263
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Other financial obligations [Member]
LIABILITIES
Financial liabilities	12,966	12,400
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash and deposits in banks [member]
ASSETS
Financial assets	1,009,681	987,680
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash items in process of collection [member]
ASSETS
Financial assets	231,305	318,658
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Loans and receivables from banks, net [member]
ASSETS
Financial assets	23,313,453	20,827,852
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Instruments at amortized cost [member]
ASSETS
Financial assets	114,175	199,561
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Investments under Agreements to Resell [Member]
ASSETS
Financial assets	75,975	109,467
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Interbank loans [member]
ASSETS
Financial assets	$ 56,396	$ 341,244

Fair Value of Financial Asset_4

Fair Value of Financial Assets and Liabilities - Schedule of Fair Value Measurements of Assets and Liabilities Only for Disclosure Purposes (Non-recurring) (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Financial assets			$ 20,143,785	$ 20,143,785
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member]
ASSETS
Financial assets	$ 24,800,985	$ 22,784,462
LIABILITIES
Financial liabilities	27,368,510	24,358,412
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Deposits and other demand liabilities [member]
LIABILITIES
Financial liabilities	4,873,448	4,300,475
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash in process of being cleared [member]
LIABILITIES
Financial liabilities	164,573	247,165
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Obligations under repurchase agreements [member]
LIABILITIES
Financial liabilities	559,457	1,015,614
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Time deposits and other time liabilities [member]
LIABILITIES
Financial liabilities	11,692,076	10,135,722
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Interbank borrowings [member]
LIABILITIES
Financial liabilities	2,646,176	2,335,509
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Debt instruments issued [member]
LIABILITIES
Financial liabilities	7,244,551	6,311,527
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Lease obligations [member]
LIABILITIES
Financial liabilities	175,263
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Other financial obligations [Member]
LIABILITIES
Financial liabilities	12,966	12,400
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash and deposits in banks [member]
ASSETS
Financial assets	1,009,681	987,680
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Cash items in process of collection [member]
ASSETS
Financial assets	231,305	318,658
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Investments under Agreements to Resell [Member]
ASSETS
Financial assets	75,975	109,467
Non-Recurring Fair Value Measurement [Member] | IFRS9 [member] | Interbank loans [member]
ASSETS
Financial assets	$ 56,396	$ 341,244

Fair Value of Financial Asset_5

Fair Value of Financial Assets and Liabilities - Schedule of Fair Value Measurement of Financial Assets and Liabilities (Recurring) (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Financial assets			$ 20,143,785	$ 20,143,785
Recurring Fair Value Measurement [Member] | IFRS9 [member]
ASSETS
Financial assets	$ 6,937,549	$ 4,123,054
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Forward Contract [Member] | Derivative Financial Instruments Liabilities [member]
LIABILITIES
Financial liabilities	504,275	322,241
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Swap contract [member] | Derivative Financial Instruments Liabilities [member]
LIABILITIES
Financial liabilities	2,431,436	788,133
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Call options [member] | Derivative Financial Instruments Liabilities [member]
LIABILITIES
Financial liabilities	1,758	1,493
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Put options [member] | Derivative Financial Instruments Liabilities [member]
LIABILITIES
Financial liabilities	565	939
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Financial instruments at fair value through profit and loss [member]
ASSETS
Financial assets	183,702	96,943
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Chilean Central Bank Securities [member]
ASSETS
Financial assets	80,898	36,608
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Other Instruments Issued in Chile [Member]
ASSETS
Financial assets	23,123	4,017
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Foreign government and central bank instruments [member]
ASSETS
Financial assets	67,088	23,276
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Other securities issued abroad [member]
ASSETS
Financial assets	4,390	19,505
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Investments in mutual funds [member]
ASSETS
Financial assets	5,903	3,532
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Other investments at fair value through profit or loss [member]
ASSETS
Financial assets	2,300	10,005
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Financial instruments at FVTOCI [member]
ASSETS
Financial assets	3,598,890	2,657,154
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Foreign government and central bank instruments [member]
ASSETS
Financial assets	165,927	769,693
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Other securities issued abroad [member]
ASSETS
Financial assets	716,423	332,560
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Chilean Central Bank and Government Securities [member]
ASSETS
Financial assets	2,174,278	1,352,084
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Other securities issued in Chile [member]
ASSETS
Financial assets	536,576	196,439
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Other investments at fair value through other comprehensive income [member]
ASSETS
Financial assets	5,686	6,378
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member]
ASSETS
Financial assets	3,154,957	1,368,957
LIABILITIES
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Forward Contract [Member]
ASSETS
Financial assets	454,300	342,993
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Swap contract [member]
ASSETS
Financial assets	2,696,635	1,021,701
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Call options [member]
ASSETS
Financial assets	3,805	4,217
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Put options [member]
ASSETS
Financial assets	$ 217	$ 46

Financial Assets and Liabilitie

Financial Assets and Liabilities Measured at Fair Value - Schedule of Financial Derivative Instruments (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
CVA	$ (28,174)	$ (37,821)	$ (53,398)
DVA	447	340	1,369
Derivative financial instruments held for hedging [member]
Disclosure of financial assets [line items]
CVA	(2)		(2)
DVA	1		815
Derivative financial instruments held for hedging [member] | Fair Value Hedges [Member]
Disclosure of financial assets [line items]
CVA			(11)
DVA			783
Derivative financial instruments held for hedging [member] | Fair Value Hedges [Member] | Currency Swap Contract [Member]
Disclosure of financial assets [line items]
CVA			(5)
DVA			222
Derivative financial instruments held for hedging [member] | Fair Value Hedges [Member] | Interest rate swaps contract [member]
Disclosure of financial assets [line items]
CVA			(6)
DVA			561
Derivative financial instruments held for hedging [member] | Cash Flow Hedges [Member]
Disclosure of financial assets [line items]
CVA	(2)		1
DVA	1		54
Derivative financial instruments held for hedging [member] | Cash Flow Hedges [Member] | Currency Forward Contract [member]
Disclosure of financial assets [line items]
CVA	(2)		(1)
DVA	1		(13)
Derivative financial instruments held for hedging [member] | Cash Flow Hedges [Member] | Currency Swap Contract [Member]
Disclosure of financial assets [line items]
DVA			27
Derivative financial instruments held for hedging [member] | Cash Flow Hedges [Member] | Interest rate swaps contract [member]
Disclosure of financial assets [line items]
CVA			2
DVA			40
Derivative financial instruments held for hedging [member] | Hedges of net investment in foreign operations [member]
Disclosure of financial assets [line items]
CVA			8
DVA			(22)
Derivative financial instruments held for hedging [member] | Hedges of net investment in foreign operations [member] | Currency Forward Contract [member]
Disclosure of financial assets [line items]
CVA			8
DVA			(22)
Derivative financial instruments held for trading [member]
Disclosure of financial assets [line items]
CVA	(28,172)	(37,821)	(53,396)
DVA	446	340	554
Derivative financial instruments held for trading [member] | Currency Forward Contract [member]
Disclosure of financial assets [line items]
CVA	(341)	(127)	(258)
DVA	123	65	(724)
Derivative financial instruments held for trading [member] | Currency Swap Contract [Member]
Disclosure of financial assets [line items]
CVA	(4,642)	(31,167)	(42,829)
DVA	295	127	367
Derivative financial instruments held for trading [member] | Interest rate swaps contract [member]
Disclosure of financial assets [line items]
CVA	(23,189)	(6,527)	(10,244)
DVA	$ 28	$ 148	911
Derivative financial instruments held for trading [member] | Currency put options [member]
Disclosure of financial assets [line items]
CVA			$ (65)

Fair Value of Financial Asset_6

Fair Value of Financial Assets and Liabilities - Schedule of Impacts on the Portfolio of a Recalibration (Detail) - Basis TAB [member] - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
TAB 30	$ 98	$ 116
TAB 90	4	26
TAB 180	39	50
TAB 360		3
Totals	141	195
CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
TAB 180	18	21
TAB 360	4	5
Totals	$ 22	$ 26

Fair Value of Financial Asset_7

Fair Value of Financial Assets and Liabilities - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of fair value measurement of assets [line items]
Financial assets			$ 20,143,785	$ 20,143,785
Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets		$ 4,123,054
Financial liabilities		1,112,806
Fair Value [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities		1,112,806
Financial instruments at fair value through profit and loss [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets		96,943
Financial instruments at FVTOCI [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets		2,657,154
Financial derivative contracts [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets		1,368,957
IFRS9 [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	$ 6,937,549
Financial liabilities	2,938,034
IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,938,034
IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	183,702
IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,598,890
IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,154,957
Recurring Fair Value Measurement [Member] | IFRS9 [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	6,937,549	4,123,054
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	504,275	322,241
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative Financial Instruments Liabilities [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,431,436	788,133
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative Financial Instruments Liabilities [member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	1,758	1,493
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative Financial Instruments Liabilities [member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	565	939
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	6,937,549	4,123,054
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	504,275	322,241
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,431,436	788,133
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	1,758	1,493
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Fair Value [Member] | Derivative Financial Instruments Liabilities [member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	565	939
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 1 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,186,616	2,525,840
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,723,501	1,570,058
Financial liabilities	2,936,915	1,112,237
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,936,915	1,112,237
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	504,094	322,192
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member] | Derivative Financial Instruments Liabilities [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,430,498	787,613
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member] | Derivative Financial Instruments Liabilities [member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	1,758	1,493
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 2 [Member] | Derivative Financial Instruments Liabilities [member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	565	939
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 3 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	27,432	27,156
Financial liabilities	1,119	569
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 3 [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	1,119	569
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 3 [Member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	181	49
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Level 3 [Member] | Derivative Financial Instruments Liabilities [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	938	520
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	183,702	96,943
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	183,702	96,943
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Chilean Central Bank Securities [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	80,898	36,608
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	23,123	4,017
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	67,088	23,276
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	4,390	19,505
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Investments in mutual funds [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,903	3,532
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Fair Value [Member] | Other investments at fair value through profit or loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,300	10,005
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 1 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	177,009	67,430
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 1 [Member] | Chilean Central Bank Securities [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	80,898	36,608
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 1 [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	23,120	4,014
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 1 [Member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	67,088	23,276
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 1 [Member] | Investments in mutual funds [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,903	3,532
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 2 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	6,693	29,513
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 2 [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3	3
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 2 [Member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	4,390	19,505
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member] | Level 2 [Member] | Other investments at fair value through profit or loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,300	10,005
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,598,890	2,657,154
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,598,890	2,657,154
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member] | Chilean Central Bank Securities [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,174,278	1,352,084
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	536,576	196,439
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	165,927	769,693
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	716,423	332,560
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Fair Value [Member] | Other investments at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,686	6,378
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 1 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,009,607	2,458,410
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 1 [Member] | Chilean Central Bank Securities [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,174,278	1,352,084
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 1 [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets		5,979
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 1 [Member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	165,927	769,693
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 1 [Member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	669,402	330,654
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 2 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	589,283	198,744
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 2 [Member] | Other securities issued locally [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	536,576	190,460
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 2 [Member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	47,021	1,906
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member] | Level 2 [Member] | Other investments at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,686	6,378
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,154,957	1,368,957
Financial liabilities	2,938,034	1,112,806
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,154,957	1,368,957
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	454,299	342,993
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,696,636	1,021,701
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,805	4,217
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Fair Value [Member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	217	46
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 2 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,127,525	1,341,801
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 2 [Member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	449,239	342,375
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 2 [Member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,674,264	995,163
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 2 [Member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,805	4,217
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 2 [Member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	217	46
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 3 [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	27,432	27,156
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 3 [Member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,060	618
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial derivative contracts [member] | Level 3 [Member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	22,372	26,538
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets	454,300	342,993
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,696,635	1,021,701
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Call options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,805	4,217
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Derivative financial instruments [member] | Put options [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	217	46
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Chilean Central Bank Securities [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	80,898	36,608
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	67,088	23,276
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	4,390	19,505
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Investments in mutual funds [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	5,903	3,532
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Trading Portfolio Financial Assets [member] | Other investments at fair value through profit or loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	2,300	10,005
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Foreign government and central bank instruments [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	165,927	769,693
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Other securities issued abroad [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	716,423	332,560
Recurring Fair Value Measurement [Member] | IFRS9 [member] | Financial Investments Available-for-Sale [member] | Other investments at fair value through other comprehensive income [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	$ 5,686	$ 6,378

Fair Value of Financial Asset_8

Fair Value of Financial Assets and Liabilities - Schedule of Reconciliation (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of fair value measurement of assets [line items]
Financial assets			$ 20,143,785	$ 20,143,785
Opening balance	$ 29,323,338
Closing balance	33,610,056	$ 29,323,338
Opening balance	25,885,778
Closing balance	30,283,718	25,885,778
IAS 39 [member]
Disclosure of fair value measurement of assets [line items]
Opening balance		28,032,773
Opening balance		24,604,016
Fair Value [Member]
Disclosure of fair value measurement of assets [line items]
Financial assets		4,123,054
Financial liabilities		1,112,806
Fair Value [Member] | Financial instruments at fair value through profit and loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets		96,943
Fair Value [Member] | Financial instruments at FVTOCI [member]
Disclosure of fair value measurement of assets [line items]
Financial assets		2,657,154
Fair Value [Member] | Financial derivative contracts [member]
Disclosure of fair value measurement of assets [line items]
Financial assets		1,368,957
Fair Value [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities		1,112,806
Fair Value [Member] | IFRS9 [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	6,937,549
Financial liabilities	2,938,034
Fair Value [Member] | IFRS9 [member] | Financial instruments at fair value through profit and loss [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	183,702
Fair Value [Member] | IFRS9 [member] | Financial instruments at FVTOCI [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,598,890
Fair Value [Member] | IFRS9 [member] | Financial derivative contracts [member]
Disclosure of fair value measurement of assets [line items]
Financial assets	3,154,957
Fair Value [Member] | IFRS9 [member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities	2,938,034
Level 3 [Member]
Disclosure of fair value measurement of assets [line items]
Opening balance	27,156	30,528
Gain (loss) recognized in profit or loss	17,328	5,863
Purchases, sales and agreements	(17,052)	(9,235)
Closing balance	27,432	27,156
Opening balance	569	605
Gain (loss) recognized in profit or loss	3,208	1,223
Net of purchases, sales and agreements	(2,658)	(1,259)
Closing balance	1,119	569
Level 3 [Member] | Financial derivative contracts [member]
Disclosure of fair value measurement of assets [line items]
Opening balance	27,156	30,528
Gain (loss) recognized in profit or loss	17,328	5,863
Purchases, sales and agreements	(17,052)	(9,235)
Closing balance	27,432	27,156
Level 3 [Member] | Financial derivative contracts [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Opening balance	618	53
Gain (loss) recognized in profit or loss	12,398	716
Purchases, sales and agreements	(7,956)	(151)
Closing balance	5,060	618
Level 3 [Member] | Financial derivative contracts [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Opening balance	26,538	30,475
Gain (loss) recognized in profit or loss	4,930	5,147
Purchases, sales and agreements	(9,096)	(9,084)
Closing balance	22,372	26,538
Level 3 [Member] | Derivative Financial Instruments Liabilities [member]
Disclosure of fair value measurement of assets [line items]
Opening balance	569	605
Gain (loss) recognized in profit or loss	3,208	1,223
Net of purchases, sales and agreements	(2,658)	(1,259)
Closing balance	1,119	569
Level 3 [Member] | Derivative Financial Instruments Liabilities [member] | Forward Contract [Member]
Disclosure of fair value measurement of assets [line items]
Opening balance	49
Gain (loss) recognized in profit or loss	2,565	831
Net of purchases, sales and agreements	(2,433)	(782)
Closing balance	181	49
Level 3 [Member] | Derivative Financial Instruments Liabilities [member] | Swap contract [member]
Disclosure of fair value measurement of assets [line items]
Opening balance	520	605
Gain (loss) recognized in profit or loss	643	392
Net of purchases, sales and agreements	(225)	(477)
Closing balance	$ 938	$ 520

Fair Value of Financial Asset_9

Fair Value of Financial Assets and Liabilities - Schedule of Classifies Assets and Liabilities Measured at Fair Value on a Non-recurring Basis (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
ASSETS
Financial assets			$ 20,143,785	$ 20,143,785
Fair Value [Member]
ASSETS
Financial assets		$ 4,123,054
LIABILITIES
Financial liabilities		1,112,806
Fair Value [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	$ 24,800,985	22,784,462
LIABILITIES
Financial liabilities	27,368,510	24,358,412
Fair Value [Member] | Deposits and other demand liabilities [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	4,873,448	4,300,475
Fair Value [Member] | Cash in process of being cleared [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	164,573	247,165
Fair Value [Member] | Obligations under repurchase agreements [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	559,457	1,015,614
Fair Value [Member] | Time deposits and other time liabilities [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	11,692,076	10,135,722
Fair Value [Member] | Interbank borrowings [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	2,646,176
Fair Value [Member] | Borrowings from financial institutions [Member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities		2,335,509
Fair Value [Member] | Debt instruments issued [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	7,244,551	6,311,527
Fair Value [Member] | Lease obligations [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	175,263
Fair Value [Member] | Other financial obligations [Member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	12,966	12,400
Fair Value [Member] | Cash and deposits in banks [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	1,009,681	987,680
Fair Value [Member] | Cash In The Process Of Collection [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	231,305	318,658
Fair Value [Member] | Investments under Agreements to Resell [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	75,975	109,467
Fair Value [Member] | Loans and receivables from banks, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	56,396	341,244
Fair Value [Member] | Loans and receivables from customers, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets		20,827,852
Fair Value [Member] | Loans and accounts receivable at amortized cost [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	23,313,453
Fair Value [Member] | Financial Instruments at amortized cost [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	114,175	199,561
Level 1 [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	1,487,532	1,757,049
LIABILITIES
Financial liabilities	8,256,620	7,911,163
Level 1 [Member] | Deposits and other demand liabilities [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	4,873,448	4,300,475
Level 1 [Member] | Cash in process of being cleared [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	164,573	247,165
Level 1 [Member] | Obligations under repurchase agreements [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	559,457	1,015,614
Level 1 [Member] | Interbank borrowings [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	2,646,176
Level 1 [Member] | Borrowings from financial institutions [Member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities		2,335,509
Level 1 [Member] | Other financial obligations [Member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	12,966	12,400
Level 1 [Member] | Cash and deposits in banks [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	1,009,681	987,680
Level 1 [Member] | Cash In The Process Of Collection [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	231,305	318,658
Level 1 [Member] | Investments under Agreements to Resell [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	75,975	109,467
Level 1 [Member] | Loans and receivables from banks, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	56,396	341,244
Level 1 [Member] | Financial Instruments at amortized cost [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	114,175
Level 2 [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	191	199,561
LIABILITIES
Financial liabilities	19,111,890	16,447,249
Level 2 [Member] | Time deposits and other time liabilities [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	11,692,076	10,135,722
Level 2 [Member] | Debt instruments issued [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	7,244,551	6,311,527
Level 2 [Member] | Lease obligations [member] | Non-Recurring Fair Value Measurement [Member]
LIABILITIES
Financial liabilities	175,263
Level 2 [Member] | Loans and receivables from banks, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	191
Level 2 [Member] | Financial Instruments at amortized cost [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets		199,561
Level 3 [Member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	23,313,644	20,827,852
Level 3 [Member] | Loans and receivables from banks, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	191
Level 3 [Member] | Loans and receivables from customers, net [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets		$ 20,827,852
Level 3 [Member] | Loans and accounts receivable at amortized cost [member] | Non-Recurring Fair Value Measurement [Member]
ASSETS
Financial assets	$ 23,313,453

Risk Management - Summary of Cr

Risk Management - Summary of Criteria used for Chile (Detail)	12 Months Ended
	Dec. 31, 2019
Group [member] | Colombia [member] | Leasing [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	33.23%
% of relative increase in lifetime PD	82.04%
Group [member] | Colombia [member] | Payroll deductible loan [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	2.79%
% of relative increase in lifetime PD	77.14%
Group [member] | Colombia [member] | Revolving line of credit [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	35.22%
% of relative increase in lifetime PD	85.65%
Group [member] | Colombia [member] | Overdraft limit [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	0.70%
% of relative increase in lifetime PD	241.11%
Group [member] | Colombia [member] | Credit card [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	29.44%
% of relative increase in lifetime PD	175.32%
Group [member] | Colombia [member] | Mortgage loan [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	2.55%
% of relative increase in lifetime PD	151.19%
Group [member] | Colombia [member] | Personal debt restructuring [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	44.04%
% of relative increase in lifetime PD	101.64%
Group [member] | Colombia [member] | Other loans [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	26.53%
% of relative increase in lifetime PD	174.02%
Group [member] | Stage1 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	20.00%
Group [member] | Stage1 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	29 days
Group [member] | Stage 2 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	20.00%
Group [member] | Stage 2 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	30 days
Group [member] | Stage 2 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	89 days
Group [member] | Stage 3 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	90 days
Corporate [member] | Colombia [member] | Without information [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	34.39%
% of relative increase in lifetime PD	86.90%
Corporate [member] | Colombia [member] | Small Company [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	22.26%
% of relative increase in lifetime PD	1314.07%
Corporate [member] | Colombia [member] | Small Company [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	33.91%
% of relative increase in lifetime PD	1326.89%
Corporate [member] | Colombia [member] | Medium Company [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	22.53%
% of relative increase in lifetime PD	64.23%
Corporate [member] | Colombia [member] | Medium Company [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	25.67%
% of relative increase in lifetime PD	1203.61%
Corporate [member] | Colombia [member] | Large Company [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	10.28%
% of relative increase in lifetime PD	99.15%
Corporate [member] | Colombia [member] | Low Default [member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	0.46%
% of relative increase in lifetime PD	0.48%
Corporate [member] | Colombia [member] | Low Defaults Government And Financial [Member]
Disclosure of Credit risk measurement [line items]
% of absolute increase in lifetime PD	0.00%
% of relative increase in lifetime PD	324.00%
Corporate [member] | Stage1 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	29 days
Corporate [member] | Stage1 [member] | A2 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	0.04%
Corporate [member] | Stage1 [member] | A2 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	0.25%
Corporate [member] | Stage1 [member] | A4 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	2.00%
Corporate [member] | Stage 2 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	30 days
Corporate [member] | Stage 2 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	89 days
Corporate [member] | Stage 2 [member] | A5 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	10.00%
Corporate [member] | Stage 2 [member] | A 6 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	4.75%
Corporate [member] | Stage 2 [member] | External credit grades b3 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	15.00%
Corporate [member] | Stage 2 [member] | External credit grades b3 [member] | Top of Range [Member]
Disclosure of Credit risk measurement [line items]
PD ranges	45.00%
Corporate [member] | Stage 3 [member] | External credit grades C3 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	100.00%
Corporate [member] | Stage 3 [member] | External credit grades C3 [member] | Bottom of Range [Member]
Disclosure of Credit risk measurement [line items]
Days of arrears to the end of the month	90 days
IFRS9 [member] | Stage1 [member] | A2 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	0.13%
IFRS9 [member] | Stage1 [member] | A4 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	1.62%
IFRS9 [member] | Stage 2 [member] | A5 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	3.52%
IFRS9 [member] | Stage 2 [member] | External credit grades b3 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	23.05%
IFRS9 [member] | Stage 3 [member] | External credit grades C3 [member]
Disclosure of Credit risk measurement [line items]
PD ranges	100.00%

Risk Management - Summary of _2

Risk Management - Summary of Criteria used for Chile Other (Detail) - Group [member]	12 Months Ended
	Dec. 31, 2019
Stage1 [member]
Disclosure of Credit risk measurement [line items]
Probability of default	20.00%
Stage 2 [member]
Disclosure of Credit risk measurement [line items]
Probability of default	20.00%
Bottom of Range [Member] | Stage 2 [member]
Disclosure of Credit risk measurement [line items]
Days of arrears for significant increase in credit risk	30 days
Top of Range [Member] | Stage1 [member]
Disclosure of Credit risk measurement [line items]
Days of arrears for significant increase in credit risk	29 days
Top of Range [Member] | Stage 2 [member]
Disclosure of Credit risk measurement [line items]
Days of arrears for significant increase in credit risk	89 days

Risk Management - Summary of Pr

Risk Management - Summary of Principal Macroeconomic Indicators Included in Economic Scenarios (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Colombia [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
GDP growth	2.63%	2.66%	3.11%
Unemployment rate	9.84%	9.84%	9.84%
Consumer's Price Index	3	3	3.40
Benchmark interest rates	4.75%	4.75%	4.75%
Currency exchange rate	3,150	3,180	3,180
Colombia [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
GDP growth	4.25%	4.20%	4.33%
Unemployment rate	9.34%	9.40%	9.50%
Consumer's Price Index	4.27	3.91	3.95
Benchmark interest rates	5.75%	5.75%	5.75%
Currency exchange rate	3,025	3,071	3,104
Colombia [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
GDP growth	3.44%	3.43%	3.72%
Unemployment rate	10.35%	10.29%	10.21%
Consumer's Price Index	1.38	1.86	2.74
Benchmark interest rates	3.75%	3.75%	3.75%
Currency exchange rate	3,335	3,289	3,256
2019 [member] | Chile [member] | Q1 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.40%
Consumer's Price Index			104.01
Interbank interest rate			1.75%
Copper			2.68
2019 [member] | Chile [member] | Q1 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.90%
Consumer's Price Index			105.15
Interbank interest rate			2.50%
Copper			2.54
2019 [member] | Chile [member] | Q1 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.90%
Consumer's Price Index			103.27
Interbank interest rate			1.50%
Copper			2.94
2019 [member] | Chile [member] | Q2 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.70%
Consumer's Price Index			103.56
Interbank interest rate			1.75%
Copper			2.68
2019 [member] | Chile [member] | Q2 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			11.20%
Consumer's Price Index			105.32
Interbank interest rate			3.00%
Copper			2.54
2019 [member] | Chile [member] | Q2 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.20%
Consumer's Price Index			102.90
Interbank interest rate			1.50%
Copper			2.94
2019 [member] | Chile [member] | Q3 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.60%
Consumer's Price Index			103.76
Interbank interest rate			1.25%
Copper			2.68
2019 [member] | Chile [member] | Q3 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			11.10%
Consumer's Price Index			105.11
Interbank interest rate			3.00%
Copper			2.54
2019 [member] | Chile [member] | Q3 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.10%
Consumer's Price Index			103.06
Interbank interest rate			1.50%
Copper			2.94
2019 [member] | Chile [member] | Q4 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.40%
Consumer's Price Index			103.31
Interbank interest rate			1.25%
Copper			2.68
2019 [member] | Chile [member] | Q4 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.90%
Consumer's Price Index			104.50
Interbank interest rate			3.00%
Copper			2.54
2019 [member] | Chile [member] | Q4 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.90%
Consumer's Price Index			102.70
Interbank interest rate			1.50%
Copper			2.94
2020 [member] | Chile [member] | Q1 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.20%
Consumer's Price Index			102.69
Interbank interest rate			1.25%
Copper			2.69
2020 [member] | Chile [member] | Q1 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.70%
Consumer's Price Index			103.54
Interbank interest rate			3.00%
Copper			2.55
2020 [member] | Chile [member] | Q1 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.10%
Consumer's Price Index			102.50
Interbank interest rate			1.50%
Copper			2.95
2020 [member] | Chile [member] | Q2 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.10%
Consumer's Price Index			102.81
Interbank interest rate			1.25%
Copper			2.69
2020 [member] | Chile [member] | Q2 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.60%
Consumer's Price Index			103.53
Interbank interest rate			3.00%
Copper			2.56
2020 [member] | Chile [member] | Q2 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.00%
Consumer's Price Index			102.61
Interbank interest rate			1.50%
Copper			2.96
2020 [member] | Chile [member] | Q3 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			8.00%
Consumer's Price Index			102.98
Interbank interest rate			1.25%
Copper			2.70
2020 [member] | Chile [member] | Q3 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.50%
Consumer's Price Index			103.65
Interbank interest rate			3.00%
Copper			2.57
2020 [member] | Chile [member] | Q3 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.90%
Consumer's Price Index			102.77
Interbank interest rate			1.50%
Copper			2.97
2020 [member] | Chile [member] | Q4 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.80%
Consumer's Price Index			103.01
Interbank interest rate			1.25%
Copper			2.71
2020 [member] | Chile [member] | Q4 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.30%
Consumer's Price Index			103.60
Interbank interest rate			3.00%
Copper			2.57
2020 [member] | Chile [member] | Q4 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.70%
Consumer's Price Index			102.80
Interbank interest rate			1.75%
Copper			2.98
Two thousand twenty one [member] | Chile [member] | Q1 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.70%
Consumer's Price Index			103
Interbank interest rate			1.50%
Copper			2.72
Two thousand twenty one [member] | Chile [member] | Q1 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.20%
Consumer's Price Index			103.55
Interbank interest rate			3.00%
Copper			2.58
Two thousand twenty one [member] | Chile [member] | Q1 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.90%
Consumer's Price Index			102.80
Interbank interest rate			1.75%
Copper			2.99
Two thousand twenty one [member] | Chile [member] | Q2 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.60%
Consumer's Price Index			103
Interbank interest rate			1.75%
Copper			2.73
Two thousand twenty one [member] | Chile [member] | Q2 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			10.10%
Consumer's Price Index			103.50
Interbank interest rate			3.00%
Copper			2.59
Two thousand twenty one [member] | Chile [member] | Q2 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.80%
Consumer's Price Index			102.80
Interbank interest rate			2.25%
Copper			3
Two thousand twenty one [member] | Chile [member] | Q3 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.40%
Consumer's Price Index			103
Interbank interest rate			2.00%
Copper			2.73
Two thousand twenty one [member] | Chile [member] | Q3 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			9.90%
Consumer's Price Index			103.45
Interbank interest rate			3.00%
Copper			2.60
Two thousand twenty one [member] | Chile [member] | Q3 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.60%
Consumer's Price Index			102.80
Interbank interest rate			2.50%
Copper			3.01
Two thousand twenty one [member] | Chile [member] | Q4 [member] | Base [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			7.30%
Consumer's Price Index			103
Interbank interest rate			2.25%
Copper			2.74
Two thousand twenty one [member] | Chile [member] | Q4 [member] | Range of upside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			9.80%
Consumer's Price Index			103.40
Interbank interest rate			3.00%
Copper			2.60
Two thousand twenty one [member] | Chile [member] | Q4 [member] | Range of downside scenarios [member]
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items]
Unemployment rate			6.50%
Consumer's Price Index			102.80
Interbank interest rate			2.50%
Copper			3.02

Risk Management - Summary of EC

Risk Management - Summary of ECL Coverage of Loans and Accounts Receivable at Amortized Cost Subject to Significant Measurement Uncertainty (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of credit risk exposure [line items]
Loans and accounts receivable at amortized cost	$ 22,254,697	$ 20,714,370
Chile [member]
Disclosure of credit risk exposure [line items]
Reported ECL	606,828
Loans and accounts receivable at amortized cost	$ 18,245,234
Expected credit loss rate	3.33%
Chile [member] | Consensus upside scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	3.25%
Chile [member] | Consensus central scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	3.33%
Chile [member] | Consensus downside scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	3.37%
Colombia [member]
Disclosure of credit risk exposure [line items]
Reported ECL	$ 273,289
Loans and accounts receivable at amortized cost	$ 4,889,580
Expected credit loss rate	5.59%
Colombia [member] | Consensus upside scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	5.56%
Colombia [member] | Consensus central scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	5.59%
Colombia [member] | Consensus downside scenario [member]
Disclosure of credit risk exposure [line items]
Expected credit loss rate	5.62%

Risk Management - Schedule of C

Risk Management - Schedule of Credit Quality by Financial Asset Class (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of provision matrix [line items]
% of over total portfolio	100.00%
Credit Risk [Member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 23,134,814	$ 21,482,490
% over total allowance		100.00%
Credit Risk [Member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	15,460,544	$ 14,366,900
Credit Risk [Member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	4,876,041	4,445,827
Credit Risk [Member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	2,798,229	2,669,763
IFRS9 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 23,134,814
% of over total portfolio	100.00%
Allowance	$ 880,117
% over total allowance	100.00%
IFRS9 [member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 13,071,745
% of over total portfolio		58.53%
Allowance		$ 389,294
% over total allowance		50.66%
IFRS9 [member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 9,626,346
% of over total portfolio	42.00%
Allowance	$ 445,452
% over total allowance	51.00%
IFRS9 [member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 1,952,076
% of over total portfolio	8.44%
Allowance	$ 110,534
% over total allowance	12.56%
IFRS9 [member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 4,876,041
% of over total portfolio	21.08%
Allowance	$ 78,501
% over total allowance	8.92%
IFRS9 [member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 2,798,229
% of over total portfolio	12.10%
Allowance	$ 256,417
% over total allowance	29.13%
IFRS9 [member] | Credit Risk [Member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 21,824,197
% of over total portfolio		100.00%
Allowance		$ 768,583
% over total allowance		100.00%
IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 9,052,452
% of over total portfolio		41.47%
Allowance		$ 379,289
% over total allowance		49.34%
IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 1,936,862
% of over total portfolio		8.87%
Allowance		$ 95,876
% over total allowance		12.47%
IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 4,445,827
% of over total portfolio		20.37%
Allowance		$ 66,117
% over total allowance		8.60%
IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 2,669,763
% of over total portfolio		12.23%
Allowance		$ 217,296
% over total allowance		28.27%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 115,422
% of over total portfolio		0.53%
Allowance		$ 899
% over total allowance		0.12%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 681,792
% of over total portfolio		3.12%
Allowance		$ 1,477
% over total allowance		0.19%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 3,033,770
% of over total portfolio		13.90%
Allowance		$ 5,901
% over total allowance		0.77%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 4,007,691
% of over total portfolio		18.36%
Allowance		$ 37,650
% over total allowance		4.90%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 2,727,643
% of over total portfolio		12.50%
Allowance		$ 96,956
% over total allowance		12.61%
IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A 6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 837,283
% of over total portfolio		3.84%
Allowance		$ 14,829
% over total allowance		1.93%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 13,508,468
% of over total portfolio	58.00%
Allowance	$ 434,665
% over total allowance	49.00%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 101,936
% of over total portfolio	0.44%
Allowance	$ 14
% over total allowance	0.00%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 600,732
% of over total portfolio	2.60%
Allowance	$ 124
% over total allowance	0.01%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 3,063,847
% of over total portfolio	13.24%
Allowance	$ 1,636
% over total allowance	0.18%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 4,238,157
% of over total portfolio	18.32%
Allowance	$ 12,582
% over total allowance	1.40%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 2,723,568
% of over total portfolio	11.77%
Allowance	$ 21,246
% over total allowance	2.36%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A 6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 1,041,531
% of over total portfolio	4.50%
Allowance	$ 25,533
% over total allowance	2.90%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | B1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 364,393
% of over total portfolio	1.58%
Allowance	$ 11,971
% over total allowance	1.36%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | B2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 154,200
% of over total portfolio	0.67%
Allowance	$ 12,071
% over total allowance	1.37%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades b3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 73,505
% of over total portfolio	0.32%
Allowance	$ 11,058
% over total allowance	1.26%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades B4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 413,676
% of over total portfolio	1.79%
Allowance	$ 96,699
% over total allowance	10.99%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 167,177
% of over total portfolio	0.72%
Allowance	$ 2,464
% over total allowance	0.27%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External Credit Grades C2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 43,587
% of over total portfolio	0.19%
Allowance	$ 3,213
% over total allowance	0.36%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 80,574
% of over total portfolio	0.35%
Allowance	$ 14,848
% over total allowance	1.65%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 91,831
% of over total portfolio	0.40%
Allowance	$ 27,076
% over total allowance	3.01%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 205,639
% of over total portfolio	0.89%
Allowance	$ 98,523
% over total allowance	10.96%
IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 144,115
% of over total portfolio	0.62%
Allowance	$ 95,606
% over total allowance	10.64%
IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | B1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 377,954
% of over total portfolio		1.73%
Allowance		$ 10,116
% over total allowance		1.32%
IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | B2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 104,513
% of over total portfolio		0.48%
Allowance		$ 5,479
% over total allowance		0.71%
IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | External credit grades b3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 84,197
% of over total portfolio		0.39%
Allowance		$ 8,830
% over total allowance		1.15%
IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | External credit grades B4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 297,570
% of over total portfolio		1.36%
Allowance		$ 37,422
% over total allowance		4.87%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 137,216
% of over total portfolio		0.63%
Allowance		$ 2,344
% over total allowance		0.30%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External Credit Grades C2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 79,134
% of over total portfolio		0.36%
Allowance		$ 6,758
% over total allowance		0.88%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 334,263
% of over total portfolio		0.16%
Allowance		$ 7,317
% over total allowance		0.95%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 62,242
% of over total portfolio		0.29%
Allowance		$ 21,265
% over total allowance		2.77%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 63,181
% of over total portfolio		0.29%
Allowance		$ 47,576
% over total allowance		6.19%
IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 127,874
% of over total portfolio		0.59%
Allowance		$ 84,475
% over total allowance		11.00%
Stage1 [member] | IFRS9 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	$ 18,711,922
Allowance	145,408
Stage1 [member] | IFRS9 [member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		$ 10,566,318
Allowance		142,883
Stage1 [member] | IFRS9 [member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	7,983,682
Allowance	109,806
Stage1 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	1,737,978
Allowance	37,434
Stage1 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	4,043,765
Allowance	5,680
Stage1 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	2,201,939
Allowance	66,692
Stage1 [member] | IFRS9 [member] | Credit Risk [Member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		18,039,481
Allowance		259,268
Stage1 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		7,473,163
Allowance		116,385
Stage1 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		1,710,659
Allowance		39,864
Stage1 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		3,626,811
Allowance		5,756
Stage1 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		2,135,693
Allowance		70,765
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		115,422
Allowance		899
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		681,792
Allowance		1,477
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		3,033,770
Allowance		5,901
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		4,007,691
Allowance		37,650
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		2,727,643
Allowance		96,956
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	10,728,240
Allowance	35,602
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	101,936
Allowance	14
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	600,732
Allowance	124
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	3,063,847
Allowance	1,636
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	4,238,157
Allowance	12,582
Stage1 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	2,723,568
Allowance	21,246
Stage 2 [member] | IFRS9 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	3,185,687
Allowance	319,912
Stage 2 [member] | IFRS9 [member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		1,701,517
Allowance		76,676
Stage 2 [member] | IFRS9 [member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	1,138,382
Allowance	162,579
Stage 2 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	656,010
Allowance	49,072
Stage 2 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	482,372
Allowance	113,507
Stage 2 [member] | IFRS9 [member] | Credit Risk [Member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		2,899,739
Allowance		219,940
Stage 2 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		1,198,222
Allowance		143,264
Stage 2 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		95,045
Allowance		20,622
Stage 2 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		659,119
Allowance		37,800
Stage 2 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		444,058
Allowance		84,842
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Individually assessed for credit losses [member] | A 6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		837,283
Allowance		14,829
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	2,047,305
Allowance	157,333
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | A 6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	1,041,531
Allowance	25,533
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | B1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	364,393
Allowance	11,971
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | B2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	154,200
Allowance	12,071
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades b3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	73,505
Allowance	11,058
Stage 2 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades B4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	413,676
Allowance	96,699
Stage 2 [member] | IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | B1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		377,954
Allowance		10,116
Stage 2 [member] | IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | B2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		104,513
Allowance		5,479
Stage 2 [member] | IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | External credit grades b3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		84,197
Allowance		8,830
Stage 2 [member] | IFRS9 [member] | Substandard Portfolios [member] | Individually assessed for credit losses [member] | External credit grades B4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		297,570
Allowance		37,422
Stage 3 [member] | IFRS9 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	1,237,205
Allowance	414,797
Stage 3 [member] | IFRS9 [member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		803,910
Allowance		169,735
Stage 3 [member] | IFRS9 [member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	504,282
Allowance	173,067
Stage 3 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	214,098
Allowance	73,100
Stage 3 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	176,266
Allowance	23,749
Stage 3 [member] | IFRS9 [member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	113,918
Allowance	76,218
Stage 3 [member] | IFRS9 [member] | Credit Risk [Member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		1,184,977
Allowance		289,375
Stage 3 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		381,067
Allowance		119,640
Stage 3 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Commercial loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		131,158
Allowance		35,390
Stage 3 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Mortgages loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		159,897
Allowance		22,561
Stage 3 [member] | IFRS9 [member] | Credit Risk [Member] | Collectively assessed for credit losses [member] | Consumer loans [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		90,012
Allowance		61,689
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	732,923
Allowance	241,730
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	167,177
Allowance	2,464
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External Credit Grades C2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	43,587
Allowance	3,213
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	80,574
Allowance	14,848
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	91,831
Allowance	27,076
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	205,639
Allowance	98,523
Stage 3 [member] | IFRS9 [member] | Normal Risk Portfolios [Member] | Credit Risk [Member] | Individually assessed for credit losses [member] | External credit grades C6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross	144,115
Allowance	$ 95,606
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C1 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		137,216
Allowance		2,344
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External Credit Grades C2 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		79,134
Allowance		6,758
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C3 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		334,263
Allowance		7,317
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C4 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		62,242
Allowance		21,265
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C5 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		63,181
Allowance		47,576
Stage 3 [member] | IFRS9 [member] | Non-compliant portfolio [member] | Individually assessed for credit losses [member] | External credit grades C6 [member]
Disclosure of provision matrix [line items]
Maximum exposure to credit risk gross		127,874
Allowance		$ 84,475

Risk Management - Schedule of A

Risk Management - Schedule of Analysis of Gross Carrying Amount of Loans and Advances to Customers by Past Due Status under IFRS 9 and IAS 39 (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
IAS 39 [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost			$ 19,764,078
Up to one month [member] | IFRS9 [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	$ 861,260	$ 429,791
Up to one month [member] | IFRS9 [member] | Commercial loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	542,648	251,596
Up to one month [member] | IFRS9 [member] | Mortgages loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	166,105	108,783
Up to one month [member] | IFRS9 [member] | Consumer loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	152,507	69,412
1 - 3 months [member] | IFRS9 [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	295,924	241,090
1 - 3 months [member] | IFRS9 [member] | Commercial loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	134,505	117,386
1 - 3 months [member] | IFRS9 [member] | Mortgages loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	88,072	64,088
1 - 3 months [member] | IFRS9 [member] | Consumer loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	73,347	59,616
Over 90 Days or More [Member] | IFRS9 [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	653,664	452,947
Over 90 Days or More [Member] | IFRS9 [member] | Commercial loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	490,641	314,870
Over 90 Days or More [Member] | IFRS9 [member] | Mortgages loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	102,650	91,107
Over 90 Days or More [Member] | IFRS9 [member] | Consumer loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	60,373	46,970
Over Due [Member] | IFRS9 [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	1,810,848	1,123,828
Over Due [Member] | IFRS9 [member] | Commercial loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	1,167,794	683,852
Over Due [Member] | IFRS9 [member] | Mortgages loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	356,827	263,978
Over Due [Member] | IFRS9 [member] | Consumer loans [member]
Disclosure of loans and advances to customers [line items]
Loans and accounts receivable at amortized cost	$ 286,227	$ 175,998

Risk Management - Schedule of B

Risk Management - Schedule of Bank's Maximum Credit Risk Exposure by Financial Asset (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of credit risk exposure [line items]
Maximum Exposure		$ 13,252,607
Collateral, cash	$ 116,654
Collateral, non-cash	27,420,674
Maximum Exposure, net amounts	7,579,874
Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	15,460,544	14,366,900
Collateral, non-cash	17,686,941	5,527,419
Maximum Exposure, net amounts	3,089,272
Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Collateral, non-cash	7,424,712	7,257,682
Maximum Exposure, net amounts	(2,627,172)
Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	2,798,229	2,669,763
Collateral, non-cash	2,233,046	358,039
Maximum Exposure, net amounts	308,766
Financial assets at fair value through other comprehensive income [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	3,598,890
Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Collateral, non-cash	27,344,699	13,143,140
Maximum Exposure, net amounts	770,866
Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	115,658
Investments under Agreements to Resell [Member]
Disclosure of credit risk exposure [line items]
Collateral, non-cash	75,975	109,467
Financial derivative contracts [member]
Disclosure of credit risk exposure [line items]
Collateral, cash	116,654
Maximum Exposure, net amounts	3,038,303
Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	56,157
Credit Risk [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	22,254,695	20,714,370
Maximum Exposure, net amounts			$ 24,405,987
Credit Risk [Member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	14,915,343	13,882,193
Credit Risk [Member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	4,797,540	4,379,710
Credit Risk [Member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	2,541,812	2,452,467
Credit Risk [Member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		91,223
Maximum Exposure, net amounts		2,657,154
Credit Risk [Member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		12,909,296
Credit Risk [Member] | Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		198,923
Credit Risk [Member] | Investments under Agreements to Resell [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts			28,524
Credit Risk [Member] | Financial derivative contracts [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		17,852,157
Collateral, cash		91,223
Maximum Exposure, net amounts		1,277,734	1,248,775
Credit Risk [Member] | Financial derivative contracts [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		13,692,840
Credit Risk [Member] | Financial derivative contracts [member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		(2,877,972)
Credit Risk [Member] | Financial derivative contracts [member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		2,094,428
Credit Risk [Member] | Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		341,244	70,077
Credit Risk [Member] | Financial other assets category [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		467,806
Credit Risk [Member] | Loans and receivables from customers, net [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts			19,764,078
Credit Risk [Member] | Financial Investments Available-for-Sale [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts			2,663,478
Credit Risk [Member] | Held to Maturity Investments [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts			202,030
Credit Risk [Member] | Other assets [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts			$ 429,025
On Balance Sheet [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	29,256,334
On Balance Sheet [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	14,915,345
On Balance Sheet [member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	4,797,540
On Balance Sheet [member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	2,541,812
On Balance Sheet [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	3,598,890
On Balance Sheet [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	22,254,697
On Balance Sheet [member] | Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	115,658
On Balance Sheet [member] | Investments under Agreements to Resell [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	75,975
On Balance Sheet [member] | Financial derivative contracts [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	3,154,957
On Balance Sheet [member] | Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	56,157
On Balance Sheet [member] | Gross assets [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	30,136,714	26,626,504
On Balance Sheet [member] | Gross assets [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	15,460,544	14,366,900
On Balance Sheet [member] | Gross assets [member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	4,876,041	4,445,827
On Balance Sheet [member] | Gross assets [member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	2,798,229	2,669,763
On Balance Sheet [member] | Gross assets [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	3,598,890	2,657,154
On Balance Sheet [member] | Gross assets [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	23,134,814	21,482,490
On Balance Sheet [member] | Gross assets [member] | Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	115,682	198,923
On Balance Sheet [member] | Gross assets [member] | Investments under Agreements to Resell [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	75,975	109,467
On Balance Sheet [member] | Gross assets [member] | Financial derivative contracts [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	3,154,957	1,368,957
On Balance Sheet [member] | Gross assets [member] | Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	56,396	341,707
On Balance Sheet [member] | Gross assets [member] | Financial other assets category [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		467,806
On Balance Sheet [member] | Allowances for loan losses [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	880,380	768,583
On Balance Sheet [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	545,199	484,707
On Balance Sheet [member] | Allowances for loan losses [member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	78,501	66,117
On Balance Sheet [member] | Allowances for loan losses [member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	256,417	217,296
On Balance Sheet [member] | Allowances for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	880,117	768,120
On Balance Sheet [member] | Allowances for loan losses [member] | Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	24
On Balance Sheet [member] | Allowances for loan losses [member] | Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	239	463
On Balance Sheet [member] | Credit Risk [Member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		25,857,921
Maximum Exposure, net amounts		2,657,154
On Balance Sheet [member] | Credit Risk [Member] | Financial assets at fair value through other comprehensive income [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		13,882,193
On Balance Sheet [member] | Credit Risk [Member] | Financial assets at fair value through other comprehensive income [member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		4,379,710
On Balance Sheet [member] | Credit Risk [Member] | Financial assets at fair value through other comprehensive income [member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		2,452,467
On Balance Sheet [member] | Credit Risk [Member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		20,714,370
On Balance Sheet [member] | Credit Risk [Member] | Financial assets at amortised cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		198,923
On Balance Sheet [member] | Credit Risk [Member] | Investments under Agreements to Resell [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		109,467
On Balance Sheet [member] | Credit Risk [Member] | Financial derivative contracts [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		1,368,957
On Balance Sheet [member] | Credit Risk [Member] | Interbank loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		341,244
On Balance Sheet [member] | Credit Risk [Member] | Financial other assets category [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts		467,806
Off Balance Sheet [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	5,860,868
Off Balance Sheet [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	5,860,868
Off Balance Sheet [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure, net amounts	5,860,868
Off Balance Sheet [member] | Gross assets [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	5,895,139
Off Balance Sheet [member] | Gross assets [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	5,895,139
Off Balance Sheet [member] | Gross assets [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	5,895,139
Off Balance Sheet [member] | Allowances for loan losses [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	34,271
Off Balance Sheet [member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	34,271
Off Balance Sheet [member] | Allowances for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure	$ 34,271
Off Balance Sheet [member] | Credit Risk [Member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,338,066
Off Balance Sheet [member] | Credit Risk [Member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,338,066
Off Balance Sheet [member] | Credit Risk [Member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,338,066
Off Balance Sheet [member] | Credit Risk [Member] | Gross assets [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,383,914
Off Balance Sheet [member] | Credit Risk [Member] | Gross assets [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,383,914
Off Balance Sheet [member] | Credit Risk [Member] | Gross assets [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		5,383,914
Off Balance Sheet [member] | Credit Risk [Member] | Allowances for loan losses [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		45,848
Off Balance Sheet [member] | Credit Risk [Member] | Allowances for loan losses [member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		45,848
Off Balance Sheet [member] | Credit Risk [Member] | Allowances for loan losses [member] | Loans and accounts receivable at amortized cost [member]
Disclosure of credit risk exposure [line items]
Maximum Exposure		$ 45,848

Risk Management - Summary For A

Risk Management - Summary For Allowances For Loan Losses According to IFRS 9 (Detail) - IFRS9 [member] - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Allowances For Loan Losses [line items]
Allowance account for credit losses of financial assets	$ 914,627	$ 804,118
Loans and receivables to Amortized Cost [member]
Disclosure Of Allowances For Loan Losses [line items]
Allowance account for credit losses of financial assets	880,117	782,713
Interbank loans [member]
Disclosure Of Allowances For Loan Losses [line items]
Allowance account for credit losses of financial assets	239	463
Provisions for contingent loans risk [member]
Disclosure Of Allowances For Loan Losses [line items]
Allowance account for credit losses of financial assets	$ 34,271	$ 20,942

Risk Management - Schedule of_2

Risk Management - Schedule of Concentration of Credit Risk by Industry (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of credit risk exposure [line items]
Maximum net exposure		$ 13,252,607
Manufacturing [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	4.66%
Mining [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	2.15%
Electricity, gas and water [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	4.45%
Agriculture and livestock [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	2.05%
Forestry and wood extraction [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	0.23%
Fishing [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	0.21%
Transport [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	2.29%
Communications [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	0.15%
Construction [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	9.33%
Commerce [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	9.08%
Services [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	17.56%
Others [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	14.86%
Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure	$ 15,460,544	14,366,900
Maximum net exposure percent	67.02%
Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure	$ 2,798,229	2,669,763
Maximum net exposure percent	11.42%
Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum net exposure percent	21.56%
Credit Risk [Member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	$ 23,134,814	21,482,490
Maximum net exposure	22,254,695	20,714,370
Credit Risk [Member] | Manufacturing [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	1,099,739	1,097,211
Maximum net exposure	1,037,275	$ 994,246
Maximum net exposure percent		4.80%
Credit Risk [Member] | Mining [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	551,615	$ 677,777
Maximum net exposure	479,190	$ 675,973
Maximum net exposure percent		3.26%
Credit Risk [Member] | Electricity, gas and water [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	1,125,541	$ 957,373
Maximum net exposure	989,433	$ 769,643
Maximum net exposure percent		3.72%
Credit Risk [Member] | Agriculture and livestock [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	483,943	$ 346,369
Maximum net exposure	455,842	$ 341,018
Maximum net exposure percent		1.65%
Credit Risk [Member] | Forestry and wood extraction [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	53,328	$ 29,683
Maximum net exposure	51,864	$ 24,362
Maximum net exposure percent		0.12%
Credit Risk [Member] | Fishing [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	46,902	$ 3,475
Maximum net exposure	45,992	$ 2,621
Maximum net exposure percent		0.01%
Credit Risk [Member] | Transport [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	559,271	$ 700,401
Maximum net exposure	510,333	$ 602,973
Maximum net exposure percent		2.91%
Credit Risk [Member] | Communications [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	34,926	$ 86,077
Maximum net exposure	33,720	$ 84,135
Maximum net exposure percent		0.41%
Credit Risk [Member] | Construction [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	2,106,829	$ 1,746,626
Maximum net exposure	2,076,668	$ 1,729,426
Maximum net exposure percent		8.35%
Credit Risk [Member] | Commerce [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	2,129,179	$ 1,620,108
Maximum net exposure	2,019,636	$ 1,599,435
Maximum net exposure percent		7.72%
Credit Risk [Member] | Services [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	3,944,571	$ 3,872,060
Maximum net exposure	3,908,000	$ 3,869,613
Maximum net exposure percent		18.68%
Credit Risk [Member] | Others [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	3,324,700	$ 3,229,740
Maximum net exposure	3,307,390	$ 3,188,748
Maximum net exposure percent		15.39%
Credit Risk [Member] | Commercial loans [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	15,460,544	$ 14,366,900
Maximum net exposure	14,915,343	$ 13,882,193
Maximum net exposure percent		67.02%
Credit Risk [Member] | Consumer loans [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	2,798,229	$ 2,669,763
Maximum net exposure	2,541,812	$ 2,452,467
Maximum net exposure percent		11.84%
Credit Risk [Member] | Mortgages loans [member]
Disclosure of credit risk exposure [line items]
Maximum gross exposure	4,876,041	$ 4,445,827
Maximum net exposure	$ 4,797,540	$ 4,379,710
Maximum net exposure percent		21.14%

Risk Management - Schedule of_3

Risk Management - Schedule of Banking Book Positions (Products Valued at Amortized Cost and Available-for-sale Instruments and Derivatives Valued at Fair Value) (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Sensitivity analysis for interest rate risk [line items]
Financial assets			$ 20,143,785	$ 20,143,785
Interest rate risk [member] | Banking book [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	$ 51,708,352	$ 28,706,104
Financial liabilities	(46,589,586)	(29,475,307)
Derivatives	26,020	729,830
Interest rate risk [member] | Banking book [member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	10,145,060	9,253,787
Financial liabilities	(14,932,996)	(13,188,076)
Derivatives	3,286,458	1,981,913
Interest rate risk [member] | Banking book [member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	11,637,816	10,270,748
Financial liabilities	(7,315,172)	(6,861,690)
Derivatives	(2,230,887)	(1,625,472)
Interest rate risk [member] | Banking book [member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	5,056,844	3,519,149
Financial liabilities	(6,404,219)	(3,887,713)
Derivatives	2,211,395	619,127
Interest rate risk [member] | Banking book [member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	24,868,632	5,662,420
Financial liabilities	(17,937,199)	(5,537,828)
Derivatives	(3,240,946)	(245,738)
Interest rate risk [member] | Banking book [member] | Up to one month [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	15,718,342	7,361,827
Financial liabilities	(20,036,030)	(14,009,676)
Derivatives	1,881,267	(729,147)
Interest rate risk [member] | Banking book [member] | Up to one month [member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	3,507,091	3,519,009
Financial liabilities	(8,633,088)	(8,733,561)
Derivatives	988,919	(209,799)
Interest rate risk [member] | Banking book [member] | Up to one month [member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	536,885	466,115
Financial liabilities	(432,799)	(214,266)
Derivatives	(936,785)	(366,332)
Interest rate risk [member] | Banking book [member] | Up to one month [member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	2,038,658	1,469,457
Financial liabilities	(1,305,440)	(1,319,813)
Derivatives	787,971	(50,293)
Interest rate risk [member] | Banking book [member] | Up to one month [member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	9,635,708	1,907,246
Financial liabilities	(9,664,703)	(3,742,036)
Derivatives	1,041,162	(102,723)
Interest rate risk [member] | Banking book [member] | 1 - 3 months [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	5,631,115	2,732,465
Financial liabilities	(5,142,757)	(2,685,555)
Derivatives	(1,765,659)	444,096
Interest rate risk [member] | Banking book [member] | 1 - 3 months [member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	965,331	1,000,478
Financial liabilities	(2,251,174)	(1,463,211)
Derivatives	1,140,587	1,521,695
Interest rate risk [member] | Banking book [member] | 1 - 3 months [member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	595,857	447,398
Financial liabilities	(47,785)	(181,744)
Derivatives	(814,209)	(1,221,035)
Interest rate risk [member] | Banking book [member] | 1 - 3 months [member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	911,154	623,505
Financial liabilities	(1,418,654)	(643,544)
Derivatives	524,265	263,381
Interest rate risk [member] | Banking book [member] | 1 - 3 months [member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	3,158,773	661,084
Financial liabilities	(1,425,144)	(397,056)
Derivatives	(2,616,302)	(119,945)
Interest rate risk [member] | Banking book [member] | 3 months to 1 year [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	9,384,357	5,510,072
Financial liabilities	(10,375,645)	(4,724,403)
Derivatives	(205,036)	251,673
Interest rate risk [member] | Banking book [member] | 3 months to 1 year [member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	2,382,124	1,753,132
Financial liabilities	(3,200,762)	(2,101,205)
Derivatives	900,023	394,300
Interest rate risk [member] | Banking book [member] | 3 months to 1 year [member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	1,670,189	1,329,598
Financial liabilities	(655,079)	(190,917)
Derivatives	(485,247)	(469,699)
Interest rate risk [member] | Banking book [member] | 3 months to 1 year [member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	1,892,712	1,197,716
Financial liabilities	(3,610,341)	(1,750,434)
Derivatives	806,558	452,557
Interest rate risk [member] | Banking book [member] | 3 months to 1 year [member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	3,439,332	1,229,626
Financial liabilities	(2,909,463)	(681,847)
Derivatives	(1,426,370)	(125,485)
Interest rate risk [member] | Banking book [member] | 1 - 3 years [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	8,943,449	4,787,052
Financial liabilities	(3,733,426)	(2,206,000)
Derivatives	(425,285)	(21,576)
Interest rate risk [member] | Banking book [member] | 1 - 3 years [member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	1,924,539	1,800,011
Financial liabilities	(632,972)	(560,099)
Derivatives	664,608	209,804
Interest rate risk [member] | Banking book [member] | 1 - 3 years [member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	2,172,579	1,845,604
Financial liabilities	(752,948)	(1,072,879)
Derivatives	(904,781)	(330,428)
Interest rate risk [member] | Banking book [member] | 1 - 3 years [member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	88,532	126,122
Financial liabilities	(69,784)	(173,922)
Derivatives	77,221	(38,395)
Interest rate risk [member] | Banking book [member] | 1 - 3 years [member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	4,757,799	1,015,315
Financial liabilities	(2,277,722)	(399,100)
Derivatives	(262,333)	137,443
Interest rate risk [member] | Banking book [member] | More than 3 Years [Member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	12,031,089	8,314,688
Financial liabilities	(7,301,728)	(5,849,673)
Derivatives	540,733	784,784
Interest rate risk [member] | Banking book [member] | More than 3 Years [Member] | CLP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	1,365,975	1,181,157
Financial liabilities	(215,000)	(330,000)
Derivatives	(407,679)	65,913
Interest rate risk [member] | Banking book [member] | More than 3 Years [Member] | CLF [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	6,662,306	6,182,033
Financial liabilities	(5,426,561)	(5,201,884)
Derivatives	910,135	762,022
Interest rate risk [member] | Banking book [member] | More than 3 Years [Member] | USD [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	125,788	102,349
Derivatives	15,380	(8,123)
Interest rate risk [member] | Banking book [member] | More than 3 Years [Member] | COP [member]
Sensitivity analysis for interest rate risk [line items]
Financial assets	3,877,020	849,149
Financial liabilities	(1,660,167)	(317,789)
Derivatives	$ 22,897	$ (35,028)

Risk Management - Schedule of T

Risk Management - Schedule of Trading Book (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Regulatory risk [member] | Trading book [member]
Estimated limit for market risk [line items]
Market risk exposure (MRE)	80.10%	71.80%	71.30%

Risk Management - Schedule of_4

Risk Management - Schedule of Banking Book (Detail) - Regulatory risk [member] - Banking book [member]	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Estimated limit for market risk [line items]
Short-term exposure to interest rate risk	48.92%	51.40%	45.00%
Long-term exposure to interest rate risk	57.82%	50.30%	43.20%

Risk Management - Schedule of I

Risk Management - Schedule of Interest Rate (Detail)	Dec. 31, 2019
Government [member] | Scenarios for impact on accrual book [member] | 1 Day [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	44.00%
Government [member] | Scenarios for impact on accrual book [member] | Up to three months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	31.00%
Government [member] | Scenarios for impact on accrual book [member] | Not later than six months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	37.00%
Government [member] | Scenarios for impact on accrual book [member] | Not later than nine months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	40.00%
Government [member] | Scenarios for impact on accrual book [member] | 1 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Government [member] | Scenarios for impact on accrual book [member] | Up to one month [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	31.00%
Curve [member] | Scenarios for impact on accrual book [member] | 1 Day [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	28.00%
Curve [member] | Scenarios for impact on accrual book [member] | Up to three months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	32.00%
Curve [member] | Scenarios for impact on accrual book [member] | Not later than six months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	40.00%
Curve [member] | Scenarios for impact on accrual book [member] | Not later than nine months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	35.00%
Curve [member] | Scenarios for impact on accrual book [member] | 1 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	31.00%
Curve [member] | Scenarios for impact on accrual book [member] | Up to one month [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	29.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	139.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	139.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	139.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	111.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	81.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(46.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	86.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(47.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	83.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(48.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	79.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(48.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	75.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(45.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	67.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(39.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	55.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(39.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	42.00%
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(139.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(139.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(139.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(111.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(35.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(81.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(46.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(86.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(47.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(83.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(48.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(79.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(48.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(75.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(45.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(67.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(39.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(55.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(39.00%)
Interest rate risk [member] | Chamber [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(42.00%)
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	57.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	116.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	62.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	89.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	56.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	60.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	64.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	39.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	140.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	57.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	116.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	62.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	89.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	52.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	56.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	60.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	64.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	39.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	68.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Government [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | CLF [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(18.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(13.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(8.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(3.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	2.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	22.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	42.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	53.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	54.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	56.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	58.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	49.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(18.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(13.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(8.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(3.00%)
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	2.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	22.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	42.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	53.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	54.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	56.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	58.00%
Interest rate risk [member] | Government [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	49.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(101.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(101.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(101.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	86.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(86.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	70.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(70.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	64.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(64.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(65.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	66.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(66.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	67.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(67.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(65.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(63.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(63.00%)
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	101.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	86.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	86.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	70.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	70.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	64.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	64.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	66.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	66.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	67.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	67.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	65.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Chile [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 Day [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(1.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Up to three months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(2.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(6.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(9.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(12.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 2 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(19.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 3 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(22.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 4 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(24.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(26.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(26.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(27.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(29.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(1.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(2.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(6.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(9.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(12.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 2 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(19.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 3 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(22.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 4 year [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(24.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(26.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(26.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(27.00%)
Interest rate risk [member] | Curve [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member] | USD [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	(29.00%)
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 Day [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	44.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Up to three months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	31.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than six months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	37.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Not later than nine months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	40.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 1 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 2 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 3 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	46.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | 4 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	55.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than five years and not later than seven years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than seven years and not later than ten years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	58.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than ten years and not later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on profit and loss [member] | Later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	23.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 Day [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	44.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Up to three months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	31.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than six months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	37.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Not later than nine months [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	40.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 1 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	43.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 2 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	48.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 3 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	46.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | 4 year [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	55.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than five years and not later than seven years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	63.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than seven years and not later than ten years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	58.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than ten years and not later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	50.00%
Interest rate risk [member] | Swap IBR [member] | Colombia [member] | Scenarios for impact on available for sale assets [member] | Later than twenty years [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Interest rate scenarios percent	23.00%

Risk Management - Schedule of E

Risk Management - Schedule of Exchange Rate (Detail)	Dec. 31, 2019
Change in scenario impacting on profit and loss [member] | Colombia [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0466%)
Change in scenario impacting fair value of other comprehensive income [member] | Colombia [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0466%)
Change in scenario impacting accrual book [member] | Colombia [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0466%)
Currency risk [member] | Change in scenario impacting on profit and loss [member] | Chile [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0718%)
Currency risk [member] | Change in scenario impacting on profit and loss [member] | Chile [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0717%)
Currency risk [member] | Change in scenario impacting fair value of other comprehensive income [member] | Chile [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0718%)
Currency risk [member] | Change in scenario impacting fair value of other comprehensive income [member] | Chile [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0717%)
Currency risk [member] | Change in scenario impacting accrual book [member] | Chile [member] | CLP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0718%)
Currency risk [member] | Change in scenario impacting accrual book [member] | Chile [member] | COP [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Exchange Rate	(0.0717%)

Risk Management - Schedule of P

Risk Management - Schedule of Potential Impact on P&L (Detail) - Scenarios for impact on profit and loss [member] - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Sensitivity analysis for interest rate risk [line items]
Total rate risk	$ (14,207)	$ (43,370)	$ (25,634)
Options risk	89	156	66
Total impact	(14,881)	(43,064)	(26,323)
CLP [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(4,881)	(5,019)	(849)
CLP [member] | Derivatives [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(4,879)	(5,018)	(847)
CLP [member] | Investments [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(2)	(1)	(2)
CLF [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(5,130)	(5,942)	(7,839)
CLF [member] | Derivatives [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(5,130)	(5,942)	(7,839)
COP [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(1,200)	(29,182)	(14,895)
COP [member] | Derivatives [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(1,086)	(29,094)	(9,909)
COP [member] | Investments [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(114)	(88)	(4,986)
UVR
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(108)	(375)
UVR | Derivatives [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(102)	(364)
UVR | Investments [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(6)	(11)
USD [member]
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(2,711)	(2,810)	(2,001)
FX
Sensitivity analysis for interest rate risk [line items]
Total rate risk	(177)	(42)	(50)
Total impact	$ (763)	$ 150	$ (755)

Risk Management - Schedule of_5

Risk Management - Schedule of Potential Impact on Accrual Book (Detail) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial risk management [abstract]
Interest rate shock sensitivity impact	$ (13,981)	$ (12,359)	$ (9,432)

Risk Management - Disclosure -

Risk Management - Disclosure - Risk Management (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017USD ($)	Dec. 31, 2017CLP ($)
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	$ (792,905)		$ (684,881)				$ (906,903)
Impact of Change in Interest Rate	(87,070,000)		(46,750,000)		$ (65,243)	$ (32,577)	(105,000,000)	$ (64,472)
Impact due to changes in exchange rate	(280,870)	$ (210,310)	(7,490)	$ (5,118)
Impact due to changes in prices	(367,940)		(7,490)		(275,553)	(5,118)
CLP [member]
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	(377,765)		(254,636)				(386,979)
Impact of Change in Interest Rate	(31,160,000)		(11,730,000)		(23,334)	(8,180)	(37,010,000)	(22,745)
CLF [member]
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	(221,758)		(177,471)				(245,812)
Impact of Change in Interest Rate	(49,070,000)		(26,290,000)		(36,744)	(18,328)	(47,620,000)	(29,261)
COP [member]
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	(49,254)		(189,242)				(225,321)
Impact of Change in Interest Rate	(1,370,000)		(5,740,000)		(1,023)	(3,988)	(17,500,000)	(10,766)
Impact due to changes in exchange rate	(146,360)	(109,591)	(3,720)	(2,494)
UVR
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	(142,663)		(29,763)
Impact of Change in Interest Rate	(5,250,000)		(550,000)		(3,981)	(380)
USD [member]
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	(2,353)		(33,769)				(48,791)
Impact of Change in Interest Rate	(140,000)		(2,440,000)		(105)	$ (1,701)	$ (2,770,000)	$ (1,700)
Impact due to changes in exchange rate	(134,510)	$ (100,719)	$ (3,770)	$ (2,624)
FX
Sensitivity analysis for interest rate risk [line items]
Potential Impact on Equity	888
Impact of Change in Interest Rate	$ (80,000)				$ (56)

Risk Management - Additional In

Risk Management - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019CLP ($)item	Dec. 31, 2018CLP ($)
Liquidity risk limits [line items]
Minimum ratio of regulatory capital to consolidated risk weighted assets	8.00%
Minimum ratio of core capital to total consolidated assets	3.00%
Regulatory capital	$ 3,280,569	$ 3,415,845
Number of risk categories | item	5
Minimum ratio of regulatory capital to consolidated risk weighted assets	100.00%
Minimum regulatory capital ratio	120.00%
Equity	$ 3,346,102	$ 3,324,531
0 % risk weight category [member]
Liquidity risk limits [line items]
Percentage of risk categories in weighted assets	0.00%
10 % risk weight category [member]
Liquidity risk limits [line items]
Percentage of risk categories in weighted assets	10.00%
20% risk weight category [member]
Liquidity risk limits [line items]
Percentage of risk categories in weighted assets	20.00%
60 % risk weight category [member]
Liquidity risk limits [line items]
Percentage of risk categories in weighted assets	60.00%
100 % risk weight category [member]
Liquidity risk limits [line items]
Percentage of risk categories in weighted assets	100.00%

Risk Management - Schedule of R

Risk Management - Schedule of Risk Exposures of Contingent Loans Explanatory (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Consolidated assets	$ 34,908,107	$ 31,735,260
Risk-Weighted Assets	24,960,183	23,361,809
Cash and deposits in banks [member]
Disclosure of financial assets [line items]
Consolidated assets	1,009,681	987,680
Cash items in process of collection [member]
Disclosure of financial assets [line items]
Consolidated assets	231,305	318,658
Risk-Weighted Assets	40,916	56,963
Trading investments [member]
Disclosure of financial assets [line items]
Consolidated assets	181,402	86,938
Risk-Weighted Assets	21,755	27,658
Investments under resale agreements [member]
Disclosure of financial assets [line items]
Consolidated assets	75,975	109,467
Risk-Weighted Assets	57,622	106,916
Derivative financial instruments [member]
Disclosure of financial assets [line items]
Consolidated assets	1,674,743	1,315,165
Risk-Weighted Assets	1,215,171	1,040,274
Interbank loans [member]
Disclosure of financial assets [line items]
Consolidated assets	56,205	341,244
Risk-Weighted Assets	56,205	95,612
Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Consolidated assets	22,373,638	20,833,935
Risk-Weighted Assets	20,112,889	18,808,886
Financial Investments Available-for-Sale [member]
Disclosure of financial assets [line items]
Consolidated assets	3,593,204	2,650,776
Risk-Weighted Assets	387,692	551,593
Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Consolidated assets	115,682	198,910
Risk-Weighted Assets	52,527	198,910
Investments in other companies [member]
Disclosure of financial assets [line items]
Consolidated assets	14,938	10,555
Risk-Weighted Assets	14,938	10,555
Intangible assets 1 [member]
Disclosure of financial assets [line items]
Consolidated assets	1,617,745	1,613,807
Risk-Weighted Assets	423,414	435,572
Fixed assets [member]
Disclosure of financial assets [line items]
Consolidated assets	57,962	95,564
Risk-Weighted Assets	57,962	95,564
Right-of-use asset under lease agreements [Member]
Disclosure of financial assets [line items]
Consolidated assets	204,559
Risk-Weighted Assets	204,559
Current income taxes [member]
Disclosure of financial assets [line items]
Consolidated assets	85,516	123,129
Risk-Weighted Assets	8,552	12,313
Deferred income taxes [member]
Disclosure of financial assets [line items]
Consolidated assets	184,167	154,599
Risk-Weighted Assets	18,417	15,460
Other assets [member]
Disclosure of financial assets [line items]
Consolidated assets	783,447	561,435
Risk-Weighted Assets	698,801	505,495
Contingent loans [member]
Disclosure of financial assets [line items]
Consolidated assets	2,647,938	2,333,398
Risk-Weighted Assets	$ 1,588,763	$ 1,400,038

Risk Management - Schedule of_6

Risk Management - Schedule of Risk Weighted Assets Explanatory (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Risk management [abstract]
Basic capital	$ 3,346,102	$ 3,324,531
Effective equity	$ 3,280,569	$ 3,415,845
Basic capital	9.59%	10.46%
Effective equity	13.14%	14.62%

Risk Management - Schedule of_7

Risk Management - Schedule of Risk Weighted Assets Explanatory Other (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Percentage of basic capital	9.59%	10.46%
Bottom of Range [Member]
Disclosure of financial assets [line items]
Percentage of basic capital	20.00%
Top of Range [Member]
Disclosure of financial assets [line items]
Percentage of basic capital	50.00%
Percentage of voluntary loan loss allowances	1.25%

Maturity of Assets and Liabil_3

Maturity of Assets and Liabilities - Schedule of Maturity of Financial Assets and Liabilities (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Total		$ 13,252,607
Investments under Agreements to Resell [Member]
Disclosure of financial assets [line items]
Total	$ 559,457	1,015,614
Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	11,620,187	10,121,111
Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	2,938,034	1,112,806
Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	2,646,756	2,327,723
Lease obligations [member]
Disclosure of financial assets [line items]
Total	172,924
Debt Issued [member]
Disclosure of financial assets [line items]
Total	6,408,356	6,010,124
Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Total	56,826	341,707
Allowance for loan losses	239	463
Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	183,702	96,943
Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	3,598,890	2,657,154
Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	23,134,814	21,482,490
Commercial loans [member]
Disclosure of financial assets [line items]
Total	15,460,544	14,366,900
Allowance for loan losses	545,199	484,707	$ 488,535
Mortgage [member]
Disclosure of financial assets [line items]
Total	4,876,041	4,445,827
Consumer loans [member]
Disclosure of financial assets [line items]
Total	2,798,229	2,669,763
Allowance for loan losses	256,417	217,296
Financial assets at amortised cost [member]
Disclosure of financial assets [line items]
Total	115,658	198,923
Investments under Agreements to Resell [Member]
Disclosure of financial assets [line items]
Total	75,975	109,467
Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	3,154,957	1,368,957
Up to one month [member] | Investments under Agreements to Resell [Member]
Disclosure of financial assets [line items]
Total	559,457	1,015,614
Up to one month [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	3,946,542	3,624,335
Up to one month [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	235,652	128,367
Up to one month [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	90,251	231,419
Up to one month [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	1,177
Up to one month [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	30,419	2,449
Up to one month [member] | Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Total	55,881	65,398
Up to one month [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	20,465	46,266
Up to one month [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	258,843	151,521
Up to one month [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	1,641,670	1,595,651
Up to one month [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	1,443,029	1,391,707
Up to one month [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	3,040	2,544
Up to one month [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	195,601	201,400
Up to one month [member] | Financial assets at amortised cost [member]
Disclosure of financial assets [line items]
Total	29,026	27,012
Up to one month [member] | Investments under Agreements to Resell [Member]
Disclosure of financial assets [line items]
Total	75,975	109,467
Up to one month [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	151,952	120,361
1 - 3 months [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	2,432,029	2,311,111
1 - 3 months [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	145,905	95,019
1 - 3 months [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	246,214	446,436
1 - 3 months [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	76,333
1 - 3 months [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	378	23,261
1 - 3 months [member] | Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Total		16,685
1 - 3 months [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	54,382	470
1 - 3 months [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	151,014	103,048
1 - 3 months [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	2,723,589	2,343,263
1 - 3 months [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	2,209,624	1,876,174
1 - 3 months [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	550	1,021
1 - 3 months [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	513,415	466,068
1 - 3 months [member] | Financial assets at amortised cost [member]
Disclosure of financial assets [line items]
Total	7,543	18,238
1 - 3 months [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	160,523	102,992
3 months to 1 year [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	3,913,833	2,910,851
3 months to 1 year [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	283,404	161,214
3 months to 1 year [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	1,781,437	1,151,959
3 months to 1 year [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	52,074
3 months to 1 year [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	620,710	668,648
3 months to 1 year [member] | Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Total	945	17,437
3 months to 1 year [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	39,730	19,002
3 months to 1 year [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	609,862	582,899
3 months to 1 year [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	2,796,116	2,115,285
3 months to 1 year [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	2,693,582	2,023,542
3 months to 1 year [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	2,760	3,876
3 months to 1 year [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	99,774	87,867
3 months to 1 year [member] | Financial assets at amortised cost [member]
Disclosure of financial assets [line items]
Total	78,138	153,673
3 months to 1 year [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	306,284	178,826
1 - 3 years [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	827,802	762,998
1 - 3 years [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	580,829	200,052
1 - 3 years [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	406,539	337,465
1 - 3 years [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	14,561
1 - 3 years [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	959,369	868,994
1 - 3 years [member] | Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Total		242,187
1 - 3 years [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	39,822	22,027
1 - 3 years [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	1,515,340	1,314,188
1 - 3 years [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	2,576,345	2,322,459
1 - 3 years [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	1,962,306	1,734,720
1 - 3 years [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	22,657	18,192
1 - 3 years [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	591,382	569,547
1 - 3 years [member] | Financial assets at amortised cost [member]
Disclosure of financial assets [line items]
Total	951
1 - 3 years [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	602,190	263,595
3-6 years [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	128,756	102,155
3-6 years [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	703,285	248,765
3-6 years [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	96,281	100,455
3-6 years [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	20,734
3-6 years [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	1,375,640	1,125,037
3-6 years [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	26,703	4,573
3-6 years [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	896,383	330,485
3-6 years [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	3,778,435	3,464,140
3-6 years [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	2,516,050	2,238,373
3-6 years [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	115,878	103,965
3-6 years [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	1,146,507	1,121,802
3-6 years [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	662,530	279,427
Over 6 year [member] | Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Total	371,225	409,661
Over 6 year [member] | Derivative financial instrument liabilities [member]
Disclosure of financial assets [line items]
Total	988,959	279,389
Over 6 year [member] | Interbank borrowings [member]
Disclosure of financial assets [line items]
Total	26,034	59,989
Over 6 year [member] | Lease obligations [member]
Disclosure of financial assets [line items]
Total	8,045
Over 6 year [member] | Debt Issued [member]
Disclosure of financial assets [line items]
Total	3,421,840	3,321,735
Over 6 year [member] | Financial assets at fair value through profit or loss, classified as held for trading, category [member]
Disclosure of financial assets [line items]
Total	2,600	4,605
Over 6 year [member] | Financial assets at fair value through other comprehensive income [member]
Disclosure of financial assets [line items]
Total	167,448	175,013
Over 6 year [member] | Loans and receivables from customers, net [member]
Disclosure of financial assets [line items]
Total	9,618,659	9,641,692
Over 6 year [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Total	4,635,953	5,102,384
Over 6 year [member] | Mortgage [member]
Disclosure of financial assets [line items]
Total	4,731,156	4,316,229
Over 6 year [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Total	251,550	223,079
Over 6 year [member] | Derivative financial instruments [member]
Disclosure of financial assets [line items]
Total	$ 1,271,478	$ 423,756

Maturity of Assets and Liabil_4

Maturity of Assets and Liabilities - Schedule of Maturity of Financial Assets and Liabilities Other (Detail) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Allowance for loan losses	$ 239	$ 463
Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	545,199	484,707	$ 488,535
Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses	$ 256,417	217,296
Loans and receivables from customers, net [member] | Commercial loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses		484,707
Loans and receivables from customers, net [member] | Mortgage [member]
Disclosure of financial assets [line items]
Allowance for loan losses		66,117
Loans and receivables from customers, net [member] | Consumer loans [member]
Disclosure of financial assets [line items]
Allowance for loan losses		$ 217,296

Foreign Currency Position - Sch

Foreign Currency Position - Schedule of Assets and Liabilities Denominated in Foreign Currencies (Detail) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019CLP ($)	Jan. 01, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017CLP ($)
Disclosure of financial assets [line items]
Cash and deposits in banks		$ 1,009,681		$ 987,680
Cash items in process of collection		231,305		318,658
Financial instruments at fair value through profit or loss		183,702		96,943
Financial instruments at fair value through other comprehensive income		3,598,890		2,657,154
Financial instruments at amortized cost		115,658		198,923
Investments under resale agreements		75,975		109,467
Investment in associates		9,605
Financial derivative contracts		3,154,957		1,368,957
Interbank loans, net		56,396		341,244
Intangible assets		1,574,433		1,570,964
Property, plant and equipment		95,080		95,564	$ 130,579
Right of use asset under lease agreements		167,441		176,795
Current taxes		85,516		123,129
Deferred taxes		208,657		178,686
Other assets		770,861		501,797
Other non-current assets held for sale		17,202		59,802
TOTAL ASSETS		33,610,056		29,323,338
Deposits and other demand liabilities		4,873,448		4,300,475
Cash in process of being cleared		164,573		247,165
Obligations under repurchase agreements		559,457		1,015,614
Time deposits and other time liabilities		11,620,187		10,121,111
Financial derivative contracts		2,938,034		1,112,806
Interbank borrowings		2,646,756		2,327,723
Debt instruments issued		6,408,356		6,010,124	5,950,038
Other financial liabilities		12,966		12,400
Lease contracts liabilities		172,924	$ 176,795
Current taxes		13		1,191
Deferred taxes		263		471
Provisions		177,827		214,903	$ 117,889
Other liabilities		708,914		521,795
Liabilities directly associated with non-current assets held for sale		0		0
TOTAL LIABILITIES		30,283,718		25,885,778
Assets (liabilities) net		3,326,338		3,437,560
CLP [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss		112,224		54,162
Financial instruments at fair value through other comprehensive income		1,600,147		835,543
Investment in associates		5,833
Interbank loans, net				239,963
Right of use asset under lease agreements		121,241
Other non-current assets held for sale		17,202		59,802
TOTAL ASSETS		33,600,585
Cash in process of being cleared		100,395		133,926
Financial derivative contracts		1,960,447		773,186
Other financial liabilities		12,956		12,390
Lease contracts liabilities		659
Assets (liabilities) net		(1,807,769)		(565,888)
Hungary, Forint
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income		1,023,726		680,505
Financial derivative contracts		402,899		83,339
Interbank borrowings				5,863
Other financial liabilities		10		10
Lease contracts liabilities		129,034
Assets (liabilities) net		4,069,472		3,228,885
USD [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through other comprehensive income		124,310		78,908
Financial instruments at amortized cost		30,123		122,391
Interbank loans, net		35,944		70,823
Right of use asset under lease agreements		7,936
TOTAL ASSETS	$ 48,874
Cash in process of being cleared		64,178		112,284
Financial derivative contracts		476,568		178,869
Interbank borrowings		2,563,630		2,279,817
Lease contracts liabilities		7,689
Assets (liabilities) net		(225,431)		(1,231,585)
COP [member]
Disclosure of financial assets [line items]
Financial instruments at fair value through profit or loss		71,478		42,781
Financial instruments at fair value through other comprehensive income		850,707		1,060,143
Financial instruments at amortized cost		85,535		76,532
Investment in associates		3,772
Interbank loans, net		20,452		30,458
Right of use asset under lease agreements		38,264
Financial derivative contracts		97,212		76,207
Interbank borrowings		83,126		39,859
Lease contracts liabilities		35,273
Assets (liabilities) net		1,283,019		1,993,491
Euro [Member]
Disclosure of financial assets [line items]
Cash in process of being cleared				796
Financial derivative contracts		908		1,205
Interbank borrowings				2,170
Assets (liabilities) net		1,172		31,287
Other Currency [member]
Disclosure of financial assets [line items]
Cash in process of being cleared				159
Interbank borrowings				14
Assets (liabilities) net				25
Cash and deposits in banks [member]
Disclosure of financial assets [line items]
Cash and deposits in banks		1,009,681		987,680
Cash and deposits in banks [member] | CLP [member]
Disclosure of financial assets [line items]
Cash and deposits in banks		243,754		223,099
Cash and deposits in banks [member] | USD [member]
Disclosure of financial assets [line items]
Cash and deposits in banks		364,594		449,437
Cash and deposits in banks [member] | COP [member]
Disclosure of financial assets [line items]
Cash and deposits in banks		398,780		299,458
Cash and deposits in banks [member] | Euro [Member]
Disclosure of financial assets [line items]
Cash and deposits in banks		2,553		15,686
Cash In The Process Of Collection [member]
Disclosure of financial assets [line items]
Cash items in process of collection		231,305		318,658
Cash In The Process Of Collection [member] | CLP [member]
Disclosure of financial assets [line items]
Cash items in process of collection		150,463		195,640
Cash In The Process Of Collection [member] | USD [member]
Disclosure of financial assets [line items]
Cash items in process of collection		80,132		119,725
Cash In The Process Of Collection [member] | COP [member]
Disclosure of financial assets [line items]
Cash items in process of collection		710		226
Cash In The Process Of Collection [member] | Euro [Member]
Disclosure of financial assets [line items]
Cash items in process of collection				2,861
Cash In The Process Of Collection [member] | Other Currency [member]
Disclosure of financial assets [line items]
Cash items in process of collection				206
Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		22,254,697		20,714,370
Loans and receivables from banks, net [member] | CLP [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		5,678,458		5,571,537
Loans and receivables from banks, net [member] | Hungary, Forint
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		8,749,298		7,785,104
Loans and receivables from banks, net [member] | USD [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		3,459,607		3,208,848
Loans and receivables from banks, net [member] | COP [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		4,355,845		4,120,535
Loans and receivables from banks, net [member] | Euro [Member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		841		19,391
Loans and receivables from banks, net [member] | Other Currency [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost				13
Investments under Agreements to Resell [Member]
Disclosure of financial assets [line items]
Investments under resale agreements		75,975		109,467
Investments under Agreements to Resell [Member] | CLP [member]
Disclosure of financial assets [line items]
Investments under resale agreements		46,686		91,510
Investments under Agreements to Resell [Member] | COP [member]
Disclosure of financial assets [line items]
Investments under resale agreements		29,289		17,957
Derivative financial instruments [member]
Disclosure of financial assets [line items]
Financial derivative contracts		3,154,957		1,368,957
Derivative financial instruments [member] | CLP [member]
Disclosure of financial assets [line items]
Financial derivative contracts		2,199,266		972,693
Derivative financial instruments [member] | Hungary, Forint
Disclosure of financial assets [line items]
Financial derivative contracts		324,414		66,989
Derivative financial instruments [member] | USD [member]
Disclosure of financial assets [line items]
Financial derivative contracts		536,936		226,561
Derivative financial instruments [member] | COP [member]
Disclosure of financial assets [line items]
Financial derivative contracts		93,427		102,709
Derivative financial instruments [member] | Euro [Member]
Disclosure of financial assets [line items]
Financial derivative contracts		914		5
Intangible assets 1 [member]
Disclosure of financial assets [line items]
Intangible assets		1,574,433		1,570,964
Intangible assets 1 [member] | CLP [member]
Disclosure of financial assets [line items]
Intangible assets		1,400,449		1,389,518
Intangible assets 1 [member] | USD [member]
Disclosure of financial assets [line items]
Intangible assets		1,104		1,308
Intangible assets 1 [member] | COP [member]
Disclosure of financial assets [line items]
Intangible assets		172,880		180,138
Property, plant and equipment, net [member]
Disclosure of financial assets [line items]
Property, plant and equipment		95,080		95,564
Property, plant and equipment, net [member] | CLP [member]
Disclosure of financial assets [line items]
Property, plant and equipment		72,766		77,639
Property, plant and equipment, net [member] | USD [member]
Disclosure of financial assets [line items]
Property, plant and equipment		422		846
Property, plant and equipment, net [member] | COP [member]
Disclosure of financial assets [line items]
Property, plant and equipment		21,892		17,079
Current income taxes [member]
Disclosure of financial assets [line items]
Current taxes		85,516		123,129
Current income taxes [member] | CLP [member]
Disclosure of financial assets [line items]
Current taxes		30,773		68,094
Current income taxes [member] | USD [member]
Disclosure of financial assets [line items]
Current taxes				2,887
Current income taxes [member] | COP [member]
Disclosure of financial assets [line items]
Current taxes		54,743		52,148
Deferred income taxes [member]
Disclosure of financial assets [line items]
Deferred taxes		208,657		178,686
Deferred income taxes [member] | CLP [member]
Disclosure of financial assets [line items]
Deferred taxes		182,302		130,883
Deferred income taxes [member] | USD [member]
Disclosure of financial assets [line items]
Deferred taxes		20,942		20,311
Deferred income taxes [member] | COP [member]
Disclosure of financial assets [line items]
Deferred taxes		5,413		27,492
Other asset [member]
Disclosure of financial assets [line items]
Other assets		770,861		501,797
Other asset [member] | CLP [member]
Disclosure of financial assets [line items]
Other assets		248,755		200,164
Other asset [member] | Hungary, Forint
Disclosure of financial assets [line items]
Other assets		91,456		7,787
Other asset [member] | USD [member]
Disclosure of financial assets [line items]
Other assets		359,198		164,724
Other asset [member] | COP [member]
Disclosure of financial assets [line items]
Other assets		71,182		121,619
Other asset [member] | Euro [Member]
Disclosure of financial assets [line items]
Other assets				7,467
Other asset [member] | Other Currency [member]
Disclosure of financial assets [line items]
Other assets				36
Financial assets1 [member]
Disclosure of financial assets [line items]
TOTAL ASSETS		33,610,056		29,323,338
Financial assets1 [member] | CLP [member]
Disclosure of financial assets [line items]
TOTAL ASSETS		12,110,319		10,110,247
Financial assets1 [member] | Hungary, Forint
Disclosure of financial assets [line items]
TOTAL ASSETS		10,188,894		8,540,385
Financial assets1 [member] | USD [member]
Disclosure of financial assets [line items]
TOTAL ASSETS		5,021,248		4,466,769
Financial assets1 [member] | COP [member]
Disclosure of financial assets [line items]
TOTAL ASSETS		6,274,369		6,151,330
Financial assets1 [member] | Euro [Member]
Disclosure of financial assets [line items]
TOTAL ASSETS		4,308		45,410
Financial assets1 [member] | Other Currency [member]
Disclosure of financial assets [line items]
TOTAL ASSETS				255
Readjustment [member]
Disclosure of financial assets [line items]
Lease contracts liabilities		269
Assets (liabilities) net		5,875		(18,655)
Readjustment [member] | Loans and receivables from banks, net [member]
Disclosure of financial assets [line items]
Loans and accounts receivable at amortized cost		10,648		8,942
Readjustment [member] | Other asset [member]
Disclosure of financial assets [line items]
Other assets		270
Readjustment [member] | Financial assets1 [member]
Disclosure of financial assets [line items]
TOTAL ASSETS		10,918		8,942
Current accounts and demand deposits [member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities		4,873,448		4,300,475
Current accounts and demand deposits [member] | CLP [member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities		2,255,736		2,058,537
Current accounts and demand deposits [member] | Hungary, Forint
Disclosure of financial assets [line items]
Deposits and other demand liabilities		2,855		4,214
Current accounts and demand deposits [member] | USD [member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities		534,005		444,668
Current accounts and demand deposits [member] | COP [member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities		2,079,465		1,785,581
Current accounts and demand deposits [member] | Euro [Member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities		1,387		7,418
Current accounts and demand deposits [member] | Other Currency [member]
Disclosure of financial assets [line items]
Deposits and other demand liabilities				57
Obligations under repurchase agreements [member]
Disclosure of financial assets [line items]
Obligations under repurchase agreements		559,457		1,015,614
Obligations under repurchase agreements [member] | CLP [member]
Disclosure of financial assets [line items]
Obligations under repurchase agreements		499,136		363,789
Obligations under repurchase agreements [member] | USD [member]
Disclosure of financial assets [line items]
Obligations under repurchase agreements				6,834
Obligations under repurchase agreements [member] | COP [member]
Disclosure of financial assets [line items]
Obligations under repurchase agreements		60,321		644,991
Time deposits and saving accounts [member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities		11,620,187		10,121,111
Time deposits and saving accounts [member] | CLP [member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities		7,952,973		6,513,874
Time deposits and saving accounts [member] | Hungary, Forint
Disclosure of financial assets [line items]
Time deposits and other time liabilities		391,679		609,136
Time deposits and saving accounts [member] | USD [member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities		1,356,132		1,955,631
Time deposits and saving accounts [member] | COP [member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities		1,919,402		1,042,445
Time deposits and saving accounts [member] | Euro [Member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities				25
Time deposits and saving accounts [member] | Readjustment [member]
Disclosure of financial assets [line items]
Time deposits and other time liabilities		1
Debt Issued [member]
Disclosure of financial assets [line items]
Debt instruments issued		6,408,356		6,010,124
Debt Issued [member] | CLP [member]
Disclosure of financial assets [line items]
Debt instruments issued		763,503		439,805
Debt Issued [member] | Hungary, Forint
Disclosure of financial assets [line items]
Debt instruments issued		4,924,260		4,475,832
Debt Issued [member] | USD [member]
Disclosure of financial assets [line items]
Debt instruments issued		129,281		649,897
Debt Issued [member] | COP [member]
Disclosure of financial assets [line items]
Debt instruments issued		590,471		444,590
Debt Issued [member] | Euro [Member]
Disclosure of financial assets [line items]
Debt instruments issued		841
Current Income Tax Provision [member]
Disclosure of financial assets [line items]
Current taxes		13		1,191
Current Income Tax Provision [member] | CLP [member]
Disclosure of financial assets [line items]
Current taxes		13		528
Current Income Tax Provision [member] | COP [member]
Disclosure of financial assets [line items]
Current taxes				663
Deferred income taxes [member]
Disclosure of financial assets [line items]
Deferred taxes		263		471
Deferred income taxes [member] | USD [member]
Disclosure of financial assets [line items]
Deferred taxes				454
Deferred income taxes [member] | COP [member]
Disclosure of financial assets [line items]
Deferred taxes		263		17
Provisions [member]
Disclosure of financial assets [line items]
Provisions		177,827		214,903
Provisions [member] | CLP [member]
Disclosure of financial assets [line items]
Provisions		106,456		140,925
Provisions [member] | COP [member]
Disclosure of financial assets [line items]
Provisions		71,371		73,978
Others liabilities [member]
Disclosure of financial assets [line items]
Other liabilities		708,914		521,795
Others liabilities [member] | CLP [member]
Disclosure of financial assets [line items]
Other liabilities		265,814		239,175
Others liabilities [member] | Hungary, Forint
Disclosure of financial assets [line items]
Other liabilities		268,685		133,106
Others liabilities [member] | USD [member]
Disclosure of financial assets [line items]
Other liabilities		115,196		69,900
Others liabilities [member] | COP [member]
Disclosure of financial assets [line items]
Other liabilities		54,446		49,508
Others liabilities [member] | Euro [Member]
Disclosure of financial assets [line items]
Other liabilities				2,509
Others liabilities [member] | Readjustment [member]
Disclosure of financial assets [line items]
Other liabilities		4,773		27,597
Financial liabilities1 [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		30,283,718		28,885,778
Financial liabilities1 [member] | CLP [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		13,918,088		10,676,135
Financial liabilities1 [member] | Hungary, Forint
Disclosure of financial assets [line items]
TOTAL LIABILITIES		6,119,422		5,311,500
Financial liabilities1 [member] | USD [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		5,246,679		5,698,354
Financial liabilities1 [member] | COP [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		4,991,350		4,157,839
Financial liabilities1 [member] | Euro [Member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		3,136		14,123
Financial liabilities1 [member] | Other Currency [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES				230
Financial liabilities1 [member] | Readjustment [member]
Disclosure of financial assets [line items]
TOTAL LIABILITIES		$ 5,043		$ 27,597

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) $ in Millions	Mar. 18, 2020$ / shares	Jan. 23, 2020	Jan. 06, 2020CLP ($)shares	Sep. 13, 2019	Dec. 31, 2019	Dec. 31, 2018CLP ($)	Dec. 10, 2018shares	Sep. 10, 2018shares
Disclosure of non-adjusting events after reporting period [line items]
Dividend payables | $						$ 51,614
Nexus S.A [member]
Disclosure of non-adjusting events after reporting period [line items]
Equity interest					12.90%
Banco Santander Chile [member] | Nexus S.A [member]
Disclosure of non-adjusting events after reporting period [line items]
Percentage of increase in ownership interest				1.90%
Itau Corpbanca [member]
Disclosure of non-adjusting events after reporting period [line items]
Number of shares acquired | shares							1	127,901
Proportion for distribution of dividend	100.00%
Dividends payable per share | $ / shares	$ 2,479,770,771
Major business combination [member] | Nexus S.A [member]
Disclosure of non-adjusting events after reporting period [line items]
Number of shares acquired | shares			79,577
Percentage of increase in ownership interest			1.91%
Equity interest			14.81%
Investments in associates | $			$ 338
Disposal of major subsidiary [member] | Helm Casa de Valores Panama S.A. [member]
Disclosure of non-adjusting events after reporting period [line items]
Value of the transaction determined at number of times price value of equity		1.50%