Banco Santander-Chile (BSAC) 20-F28 Mar 182017 FY Annual report (foreign)Financial data

Company Profile

Document and Entity Information

Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2017shares
Document And Entity Information
Entity Registrant Name	BANCO SANTANDER CHILE
Entity Central Index Key	1,027,552
Document Type	20-F
Trading symbol	BSAC
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity a Well-known Seasoned Issuer	Yes
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	0
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2,017

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and deposits in banks		$ 1,452,922	$ 2,279,389
Cash items in process of collection		668,145	495,283
Trading investments		485,736	396,987
Investments under resale agreements			6,736
Financial derivative contracts		2,238,647	2,500,782
Interbank loans, net		162,213	268,672
Loans and accounts receivable from customers, net		26,772,544	26,147,154
Available for sale investments		2,574,546	3,388,906
Investments in associates and other companies	[1]	27,585	23,780
Intangible assets		63,219	58,085
Property, plant, and equipment		242,547	257,379
Deferred taxes		371,091	359,600
Other assets		764,410	847,272
TOTAL ASSETS		35,823,605	37,030,025
LIABILITIES
Deposits and other demand liabilities		7,768,166	7,539,315
Cash items in process of being cleared		486,726	288,473
Obligations under repurchase agreements		268,061	212,437
Time deposits and other time liabilities		11,913,945	13,151,709
Financial derivative contracts		2,139,488	2,292,161
Interbank borrowings		1,698,357	1,916,368
Issued debt instruments		709,365	7,326,372
Other financial liabilities		242,030	240,016
Current taxes		6,435	29,294
Deferred taxes		9,663	7,686
Provisions		303,798	292,210
Other liabilities		745,363	795,785
TOTAL LIABILITIES		32,675,685	34,091,826
Attributable to the equity holders of the Bank:
Capital		891,303	891,303
Reserves		1,781,818	1,640,112
Valuation adjustments		(2,312)	6,640
Retained earnings
Retained earnings from prior years		41,267	37,551
Income for the year		562,801	476,067
Minus: Provision for mandatory dividends		(168,840)	(142,815)
Retained earnings		435,228	370,803
Attributable to the equity holders of the Bank		3,106,037	2,908,858
Non-controlling interest		41,883	29,341
TOTAL EQUITY		3,147,920	2,938,199
TOTAL LIABILITIES AND EQUITY		$ 35,823,605	$ 37,030,025

[1]	Investments in associates and other companies do not have market prices.

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - CLP ($) $ in Millions	12 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
OPERATING INCOME
Interest income	$ 2,058,446	$ 2,137,044	$ 2,085,988
Interest expense	(731,755)	(855,678)	(830,782)
Net interest income	1,326,691	1,281,366	1,255,206
Fee and commission income	455,558	431,184	402,900
Fee and commission expense	(176,495)	(176,760)	(165,273)
Net fee and commission income	279,063	254,424	237,627
Net income (expense) from financial operations	2,796	(367,034)	(457,897)
Net foreign exchange gain	126,956	507,392	603,396
Other operating income	62,016	6,427	6,439
Net operating profit before provision for loan losses	1,797,522	1,682,575	1,644,771
Provision for loan losses	(302,255)	(342,083)	(399,277)
NET OPERATING PROFIT	1,495,267	1,340,492	1,245,494
Personnel salaries and expenses	(396,967)	(395,133)	(387,063)
Administrative expenses	(230,103)	(226,413)	(220,531)
Depreciation and amortization	(77,823)	(65,359)	(53,614)
Impairment of property, plant, and equipment	(5,644)	(234)	(21)
Other operating expenses	(68,413)	(68,902)	(58,729)
Total operating expenses	(778,950)	(756,041)	(719,958)
OPERATING INCOME	716,317	584,451	525,536
Income from investments in associates and other companies	3,963	3,012	2,588
Income before tax	720,280	587,463	528,124
Income tax expense	(145,031)	(109,031)	(76,395)
NET INCOME FOR THE YEAR	575,249	478,432	451,729
Attributable to:
Equity holders of the Bank	562,801	476,067	448,466
Non-controlling interest	$ 12,448	$ 2,365	$ 3,263
Earnings per share attributable to Equity holders of the Bank :
Basic earnings	$ 2,987	$ 2,526	$ 2,380
Diluted earnings	$ 2,987	$ 2,526	$ 2,380

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statement Of Comprehensive Income
NET INCOME FOR THE YEAR	$ 575,249	$ 478,432	$ 451,729
OTHER COMPREHENSIVE INCOME ITEMS WHICH MAY BE RECLASSIFIED SUBSEQUENTLY TO PROFIT OR LOSS
Available for sale investments	(5,520)	14,468	(28,777)
Cash flow hedge	(5,850)	(6,338)	(2,099)
Other comprehensive income items which may be reclassified subsequently to profit or loss, before tax	(11,370)	8,130	(30,876)
Income tax related to items which may be reclassified subsequently to profit or loss	2,754	(1,975)	6,462
Other comprehensive income items which may be reclassified subsequently to profit or loss, net of tax	(8,616)	6,155	(24,414)
TOTAL COMPREHENSIVE INCOME FOR THE YEAR	566,633	484,587	427,315
Attributable to:
Equity holders of the Bank	553,849	481,419	424,154
Non-controlling interests	$ 12,784	$ 3,168	$ 3,161

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - CLP ($) $ in Millions	Capital [Member]	Reserves And Other Retained Earnings [Member]	Effects Of Merger Of Companies Under Common Control [Member]	Available For Sale Investments [Member]	Cash Flow Hedge [Member]	Income Tax Effects [Member]	Retained Earnings Of Prior Years [Member]	Income For The Year [Member]	Provision For Mandatory Dividends [Member]	Total Attributable To Equity Holders Of The Bank [Member]	Non-controlling Interest [Member]	Total
Equity at Dec. 31, 2014	$ 891,303	$ 1,309,985	$ (2,224)	$ 21,680	$ 10,725	$ (6,805)	$ 18,384	$ 569,910	$ (170,973)	$ 2,641,985	$ 33,083	$ 2,675,068
Changes in equity [Roll Forward]
Distribution of income from previous period							569,910	(569,910)
Equity at Dec. 31, 2014	891,303	1,309,985	(2,224)	21,680	10,725	(6,805)	588,294		(170,973)	2,641,985	33,083	2,675,068
Changes in equity [Roll Forward]
Dividends distributions/ withdrawals made							(330,199)		170,973	(159,226)		(159,226)
Transfer of retained earnings to reserves		220,132					(220,132)				(6,063)	(6,063)
Provision for mandatory dividends									(134,539)	(134,539)		(134,539)
Subtotal		220,132					(550,331)		36,434	(293,765)	(6,063)	(299,828)
Other comprehensive income				(28,645)	(2,099)	6,432				(24,312)	(102)	(24,414)
Income for the year								448,466		448,466	3,263	451,729
Subtotal				(28,645)	(2,099)	6,432		448,466		424,154	3,161	427,315
Equity at Dec. 31, 2015	891,303	1,530,117	(2,224)	(6,965)	8,626	(373)	37,963	448,466	(134,539)	2,772,374	30,181	2,802,555
Changes in equity [Roll Forward]
Distribution of income from previous period							448,466	(448,466)
Equity at Dec. 31, 2015	891,303	1,530,117	(2,224)	(6,965)	8,626	(373)	486,429		(134,539)	2,772,374	30,181	2,802,555
Changes in equity [Roll Forward]
Dividends distributions/ withdrawals made							(336,659)		134,539	(202,120)	(4,008)	(206,128)
Transfer of retained earnings to reserves		112,219					(112,219)
Provision for mandatory dividends									(142,815)	(142,815)		(142,815)
Subtotal		112,219					(448,878)		(8,276)	(344,935)	(4,008)	(348,943)
Other comprehensive income				13,414	(6,338)	(1,724)				5,352	803	6,155
Income for the year								476,067		476,067	2,365	478,432
Subtotal				13,414	(6,338)	(1,724)		476,067		481,419	3,168	484,587
Equity at Dec. 31, 2016	891,303	1,642,336	(2,224)	6,449	2,288	(2,097)	37,551	476,067	(142,815)	2,908,858	29,341	2,938,199
Changes in equity [Roll Forward]
Distribution of income from previous period							476,067	(476,067)
Equity at Dec. 31, 2016	891,303	1,642,336	(2,224)	6,449	2,288	(2,097)	513,618		(142,815)	2,908,858	29,341	2,938,199
Changes in equity [Roll Forward]
Dividends distributions/ withdrawals made							(330,645)		142,815	(187,830)	(242)	(188,072)
Transfer of retained earnings to reserves		141,706					(141,706)
Provision for mandatory dividends									(168,840)	(168,840)		(168,840)
Subtotal		141,706					(472,351)		(26,025)	(356,670)	(242)	(356,912)
Other comprehensive income				(5,990)	(5,850)	2,888				(8,952)	336	(8,616)
Income for the year								562,801		562,801	12,448	575,249
Subtotal				(5,990)	(5,850)	2,888		562,801		553,849	12,784	566,633
Equity at Dec. 31, 2017	$ 891,303	$ 1,784,042	$ (2,224)	$ 459	$ (3,562)	$ 791	$ 41,267	$ 562,801	$ (168,840)	$ 3,106,037	$ 41,883	$ 3,147,920

CONSOLIDATED STATEMENTS OF CHA6

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Statement of changes in equity [abstract]
Total attributable to equity holders of the Bank	$ 472,351	$ 448,878
Allocated to reserves	141,706	112,219
Allocated to dividends	$ 330,645	$ 336,659
Number of shares	188,446,126,794	188,446,126,794
Dividend per share (in dollars per shares)	$ 1.755	$ 1.787

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
A - CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME FOR THE YEAR	$ 575,249	$ 478,432	$ 451,729
Debits (credits) to income that do not represent cash flows	(1,198,330)	(1,082,975)	(927,591)
Depreciation and amortization	77,823	65,359	53,614
Impairment of property, plant, and equipment	5,644	234	21
Provision for loan losses	385,782	420,381	467,417
Mark to market of trading investments	1,438	(2,682)	(3,001)
Income from investments in associates and other companies	(3,962)	(3,012)	(2,588)
Net gain on sale of assets received in lieu of payment	(3,330)	(1,663)	(2,455)
Provision on assets received in lieu of payment	3,912	9,246	7,803
Net gain on sale of property, plant and equipment	(23,229)	(2,017)	(381)
Net interest income	(1,326,691)	(1,281,366)	(1,255,206)
Net fee and commission income	(279,063)	(254,424)	(237,627)
Debits (credits) to income that do not represent cash flows	(29,903)	4,238	90,484
Changes in deferred taxes	(6,751)	(37,269)	(45,672)
Increase/decrease in operating assets and liabilities	206,724	1,340,696	1,163,658
(Increase) of loans and accounts receivables from customers, net	(629,605)	(1,643,744)	(2,083,854)
Decrease (increase) of financial investments	725,611	(1,417,211)	(57,731)
Decrease (increase) due to resale agreements (assets)	6,736	(4,273)	2,463
Decrease (increase) of interbank loans	110,036	(261,744)	(1,057)
Decrease of assets received or awarded in lieu of payment	4,125	18,238	4,157
Increase of debits in customers checking accounts	127,968	268,695	744,863
(Decrease) increase of time deposits and other time liabilities	(1,237,764)	968,942	1,768,827
Increase (decrease) of obligations with domestic banks	(364,956)	365,436	(66,006)
Increase (decrease) of other demand liabilities or time obligations	100,883	(85,502)	130,763
Increase of obligations with foreign banks	146,947	243,355	142,069
(Decrease) increase of obligations with Central Bank of Chile	(2)	3	(90)
(Decrease) increase of obligations under repurchase agreements	55,624	68,748	(248,437)
Increase in other financial liabilities	2,014	19,489	15,402
(Decrease) increase of other assets and liabilities	(158,281)	259,899	(1,286,057)
Redemption of letters of credit	(11,772)	(16,606)	(26,720)
Senior bond issuances	911,581	3,537,855	878,389
Redemption of mortgage bonds and payments of interest	(5,736)	(5,492)	(5,343)
Redemption of senior bonds and payments of interest	(1,167,656)	(2,499,271)	(231,972)
Redemption of subordinated bonds and payments of interest	(14,899)	(12,128)	(10,397)
Interest received	2,058,446	2,137,044	2,093,028
Interest paid	(731,755)	(855,678)	(836,544)
Dividends received from investments in other companies	116	217	278
Fees and commissions received	455,558	431,184	402,900
Fees and commissions paid	(176,495)	(176,760)	(165,273)
Total cash flow (used in) provided by operating activities	(416,357)	736,153	687,796
B - CASH FLOWS FROM INVESTMENT ACTIVITIES:
Purchases of property, plant, and equipment	(58,772)	(62,355)	(65,111)
Sales of property, plant, and equipment	17,941	560	121
Purchases of investments in associates and other companies	(3)	(1,123)	(302)
Purchases of intangible assets	(32,624)	(27,281)	(27,573)
Total cash flow .used in investment activities	(73,458)	(90,199)	(92,865)
C - CASH FLOW FROM FINANCING ACTIVITIES:
From shareholders' financing activities	(330,645)	(336,659)	(330,199)
Dividends paid	(330,645)	(336,659)	(330,199)
Total cash flow used in financing activities	(330,645)	(336,659)	(330,199)
D - NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS DURING THE YEAR	(820,460)	309,295	264,732
E - EFFECTS OF FOREIGN EXCHANGE RATE FLUCTUATIONS	(31,398)	(150,266)	203,436
F - INITIAL BALANCE OF CASH AND CASH EQUIVALENTS	2,486,199	2,327,170	1,859,002
FINAL BALANCE OF CASH AND CASH EQUIVALENTS	1,634,341	2,486,199	2,327,170
Reconciliation of provisions for the Consolidated Statement of Cash Flow for the year ended
Provision for loan losses for cash flow purposes	385,782	420,381	467,417
Recovery of loans previously charged off	(83,527)	(78,298)	(68,140)
Provision for loan losses - net	$ 302,255	$ 342,083	$ 399,277

CONSOLIDATED STATEMENT OF CASH8

CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) $ in Millions	12 Months Ended
	Dec. 31, 2017CLP ($)
Reconciliation of liabilities that arise from financing activities [Roll Forward]
Balance as of beginning	$ 759,665
Cash flow	(330,645)
Changes not related to cash flows
Adquisition
Foreign currency exchange
Price level restatement	13,527
Fair value changes
Balance as of end	442,547
Other liabilities [Member]
Reconciliation of liabilities that arise from financing activities [Roll Forward]
Balance as of beginning
Cash flow
Changes not related to cash flows
Adquisition
Foreign currency exchange
Price level restatement
Fair value changes
Balance as of end
Paid dividend [Member]
Reconciliation of liabilities that arise from financing activities [Roll Forward]
Balance as of beginning
Cash flow	(330,645)
Changes not related to cash flows
Adquisition
Foreign currency exchange
Price level restatement
Fair value changes
Balance as of end	(330,645)
Subordinated bonds [Member]
Reconciliation of liabilities that arise from financing activities [Roll Forward]
Balance as of beginning	759,665
Changes not related to cash flows
Adquisition
Foreign currency exchange
Price level restatement	13,527
Fair value changes
Balance as of end	$ 773,192

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2017
Summary Of Significant Accounting Policies
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 01 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES CORPORATE INFORMATION Banco Santander Chile is a banking corporation (limited company) operating under the laws of the Republic of Chile, headquartered at Bandera N°140, Santiago. The corporation provides a broad range of general banking services to its customers, ranging from individuals to major corporations. Banco Santander Chile and its subsidiaries (collectively referred to herein as the “Bank” or “Banco Santander Chile”) offers commercial and consumer banking services, including (but not limited to) factoring, collection, leasing, securities and insurance brokering, mutual and investment fund management brokering, and investment banking. Banco Santander Spain controls Banco Santander-Chile through its holdings in Teatinos Siglo XXI Inversiones Ltda. and Santander-Chile Holding S.A., which are controlled subsidiaries of Banco Santander Spain. As of December 31, 2017 Banco Santander Spain owns or controls directly and indirectly 99.5% of Santander-Chile Holding S.A. and 100% of Teatinos Siglo XXI Inversiones Ltda. This gives Banco Santander Spain control over 67.18% of the Bank’s shares. a) Basis of preparation These Consolidated Financial Statements have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB) (hereinafter referred to as IFRS). For purposes of these financial statements we use certain terms and conventions. References to “US$”, “U.S. dollars” and “dollars” are to United States dollars, references to “EUR” are to European Economic Community Euro, references to “CNY” are to Chinese Yuan, references to “CHF” are to Swiss franc, references to “Chilean pesos”, “pesos” or “Ch$” are to Chilean pesos, and references to “UF” are to Unidades de Fomento. The UF is an inflation-indexed 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 UF is revalued in monthly cycles. Each day in the period beginning on the tenth day of the current month through the ninth day of the succeeding month, the nominal peso value of the UF is indexed up (or down in the event of deflation) in order to reflect a proportionate amount of the change in the Chilean Consumer Price Index during the prior calendar month. One UF is equaled to Ch$26,798.14 as of December 31, 2017 and Ch$26,347.98 as of December 31, 2016. In 2017, UF inflation was 2.3% compared to 2.7% in 2016. 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 Notes to the Consolidated Financial Statements contain additional information to support the figures submitted in the Consolidated Statement of Financial Position, Consolidated Statement of Income, Consolidated Statement of Comprehensive Income, Consolidated Statement of Changes in Equity and Consolidated Statement of Cash Flows for the period. b) Basis of preparation for the Consolidated Financial Statements The Consolidated Financial Statements for the years ended December 31, 2017, 2016 and 2015, incorporate the financial statements of the entities over which the Bank has control (including structured entities); and includes the adjustments, reclassifications and eliminations needed to comply with the accounting and valuation criteria established by IFRS. Control is achieved when the Bank: I. has power over the investee; II. is exposed, or has rights, to variable returns from its involvement with the investee; and III. has the ability to use its power to affect its returns. The Bank reassesses whether or not it controls an investee if facts and circumstances indicate that there are changes to one or more of the three elements of control listed above. When the Bank has less than a majority of the voting rights of an investee, it has power over the investee when the voting rights are sufficient to give it the practical ability to direct the relevant activities over the investee unilaterally. The Bank considers all relevant facts and circumstances in assessing whether or not the Bank’s voting rights in an investee are sufficient to give it power, including: · · · · Consolidation of a subsidiary begins when the Bank obtains control over the subsidiary and ceases when the Bank loses control over the subsidiary. Specifically, income and expenses of a subsidiary acquired or disposed of during the year are included in the Consolidated Statement of Income and in the Consolidated Statement of Comprehensive Income from the date the Bank gains control until the date when the Bank ceases to control the subsidiary. Profit or loss and each component of other comprehensive income are attributed to the owners of the Bank and to the non-controlling interests. Total comprehensive income of subsidiaries is attributed to the owners of the Bank and to the non-controlling interests even if this results in the non-controlling interests having a deficit in certain circumstances. When necessary, adjustments are made to the financial statements of the subsidiaries to ensure their accounting policies are consistent with the Bank’s accounting policies. All intragroup assets, liabilities, equity, income, expenses and cash flows relating to transactions between consolidated entities are eliminated in full on consolidation. Changes in the consolidated entities ownership interests in subsidiaries that do not result in a loss of control over the subsidiaries are accounted for as equity transactions. The carrying values of the Bank’s equity and the non-controlling interests’ equity are adjusted to reflect the changes to their relative interests in the subsidiaries. Any difference between the amount by which the non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to owners of the Bank. In addition, third parties’ shares in the Bank’s consolidated equity are presented as “Non-controlling interests” in the Consolidated Statement of Changes in Equity. Their share in the income for the year is presented as “Attributable to non-controlling interest” in the Consolidated Statement of Income. The following companies are considered entities controlled by the Bank and are therefore within the scope of consolidation: i. Entities controlled by the Bank through participation in equity Name of the Subsidiary Percent ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Direct Indirect Total Direct Indirect Total Direct Indirect Total Main Activity % % % % % % % % % Santander Corredora de Seguros Limitada Insurance brokerage Santiago, Chile 99.75 0.01 99.76 99.75 0.01 99.76 99.75 0.01 99.76 Santander Corredores de Bolsa Limitada(*) Financial instruments brokerage Santiago, Chile 50.59 0.41 51.00 50.59 0.41 51.00 50.59 0.41 51.00 Santander Agente de Valores Limitada Securities brokerage Santiago, Chile 99.03 - 99.03 99.03 - 99.03 99.03 - 99.03 Santander S.A. Sociedad Securitizadora Purchase of credits and issuance of debt instruments Santiago, Chile 99.64 - 99.64 99.64 - 99.64 99.64 - 99.64 The detail of non-controlling participation on all the remaining subsidiaries can be seen in Note 24– Non-controlling interest. ii. Entities controlled by the Bank through other considerations The following companies have been consolidated based on the determination that the Bank has control as previously defined above and in accordance with IFRS 10, Consolidated Financial Statements - Santander Gestión de Recaudación y Cobranza Limitada (collection services) - Bansa Santander S.A. (management of repossessed assets and leasing of properties) iii. Associates An associate is an entity over which the Bank has significant influence. Significant influence, in this case, is defined as the power to participate in the financial and operating policy decisions of the investee but is not control or joint control over those policies. An investment in an associate is accounted for using the equity method from the date on which the investee becomes an associate. The following companies are considered “Associates” in which the Bank accounts for its participation using the equity method: Percentage of ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Associates Main activity % % % Redbanc S.A. ATM services Santiago, Chile 33.43 33.43 33.43 Transbank S.A. Debit and credit card services Santiago, Chile 25.00 25.00 25.00 Centro de Compensación Automatizado Electronic fund transfer and compensation services Santiago, Chile 33.33 33.33 33.33 Sociedad Interbancaria de Depósito de Valores S.A. Delivery of securities on public offer Santiago, Chile 29.29 29.29 29.29 Cámara Compensación de Alto Valor S.A. Payments clearing Santiago, Chile 15.00 14.93 14.23 Administrador Financiero del Transantiago S.A. Administration of boarding passes to public transportation Santiago, Chile 20.00 20.00 20.00 Sociedad Nexus S.A. Credit card processor Santiago, Chile 12.90 12.90 12.90 Servicios de Infraestructura de Mercado OTC S.A. Administration of the infrastructure for the financial market of derivative instruments Santiago, Chile 12.07 12.07 11.11 In the case of Sociedad Nexus S.A. and Cámara Compensación de Pagos Alto Valor S.A., Banco Santander Chile has a representative on the Board of Directors. As per the definition of associates, the Bank has concluded that it exerts significant influence over those entities. During 2017, Rabobank Chile in liquidation process and Banco París, ceded to Banco Santander Chile a portion of its share in the company "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A.", thereby increasing the Bank's share. During the last quarter of 2016, Banco Penta ceded to Banco Santander Chile a portion of its share in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A." and "Servicios de Infraestructura de Mercado OTC S.A.", thereby increasing the Bank's share to 14.93% and 12.07% respectively. As of the ended (2016), Deutsche Bank ceded to Banco Santander Chile a portion of its share in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A." and "Servicios de Infraestructura de Mercado OTC S.A.", thereby increasing the Bank's share to 14.84% and 11.93% respectively. At the Extraordinary Shareholders meeting held in April 21, 2016, Transbank S.A. agreed to increase its capital by capitalizing the accumulated profits, through the placement of shares for Ch$4,000 million approximately. Banco Santander Chile participated proportionally in its participation (25%), therefore subscribed and paid in for Ch$1,000 million. Previously, Transbank agreed to capital increase at an Extraordinary Shareholders' Meeting held in April 2015, Banco Santander subscribed to that agreement, maintaining its ownership. In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensación de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing its participation to 14.23%. c) Non-controlling interest Non-controlling interest represents the portion of net income and net assets which the Bank does not own, either directly or indirectly. It is presented as “Attributable to non-controlling interest” separately in the Consolidated Statement of Income, and separately from shareholders’ equity in the Consolidated Statement of Financial Position. In the case of entities controlled by the Bank through other considerations, income and equity are presented in full as non-controlling interest, since the Bank controls them, but does not have any ownership expressed as a percentage. d) Reporting segments Operating segments are components of an entity: i. that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses from transactions with other components of the same entity); ii. whose operating results are regularly reviewed by the entity’s chief executive officer, who makes decisions about resources allocated to the segment and assess its performance; and iii. for which discrete financial information is available. Two or more segments can be combined only if aggregation is consistent with International Financial Reporting Standard 8 “Operating Segments” (IFRS 8) and the segments have similar economic characteristics and are similar in each of the following respects: i. the nature of the products and services; ii. the nature of the production processes; iii. the type or class of customers that use their products and services; iv. the methods used to distribute their products or services; and v. if applicable, the nature of the regulatory environment, for example, banking, insurance, or public utilities. The Bank reports separately on each operating segment that exceeds any of the following quantitative thresholds: i. its reported revenue, from both external customers and intersegment sales or transfers, is 10% or more of the combined internal and external revenue of all the operating segments. ii. the absolute amount of its reported profit or loss is 10% or more of the greater in absolute amount of: (i) the combined reported profit of all the operating segments that did not report a loss; (ii) the combined reported loss of all the operating segments that reported a loss. iii. its assets represent 10% or more of the combined assets of all the operating segments. Operating segments that do not meet any of the quantitative threshold may be treated as segments to be reported, in which case the information must be disclosed separately if management believes it could be useful for the users of the Consolidated Financial Statements. Information about other business activities of the operating segments not separately reported is combined and disclosed in the “Other segments” category. e) Functional and presentation currency According to International Accounting Standard (IAS) 21 “The Effects of Changes in Foreign Exchange Rates”, the Chilean peso, which is the currency of the primary economic environment in which the Bank operates and the currency which influences its costs and revenue structure, has been defined as the Bank’s functional and presentation currency. Accordingly, all balances and transactions denominated in currencies other than the Chilean Peso are treated as “foreign currency”. The Bank maintains its accounting records and prepares its financial statements in Chilean pesos. The US dollar amounts disclosed in the accompanying financial statements are presented solely for the convenience of the reader as of December 31, 2017 using the observed exchange rate of Ch$616.85 per US$1.00. Such translations should not be construed as representations that the (local currency) amounts represent, or have been or could be converted into, United States dollars at that or any other rate. f) Foreign currency transactions The Bank makes transactions in amounts denominated in foreign currencies, mainly the U.S. dollar. Assets and liabilities denominated in foreign currencies, held by the Bank are translated to Chilean pesos based on the market rate published by Reuters at 1:30 p.m. representative of the month end reported; the rate used was Ch$616.85 per US$1 as of December 31, 2017 (Ch$666.00 per US$1 as of December, 2016). The amounts of net foreign exchange gains and losses includes recognition of the effects that exchange rate variations have on assets and liabilities denominated in foreign currencies and the profits and losses on foreign exchange spot and forward transactions undertaken by the Bank. g) Definitions and classification of financial instruments 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 measurement purposes Financial assets are 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 are recognized and derecognized on a trade basis. Regular way purchases or sales of financial assets require delivery of the asset within the time frame established by regulation or convention in the marketplace. Financial assets are initially recognized at fair value plus, in the case of a financial assets not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition or issue. Effective interest method The effective interest method is a method of calculating the amortised 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 is recognised on an effective interest basis for loans and accounts receivables other than those financial assets classified as at fair value through profit or loss. Financial assets FVTPL - Trading investments Financial assets are classified as FVTPL when the financial asset is either held for trading or it is designated as at fair value through profit or loss. A financial asset is 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 are stated at fair value, with any gains or losses arising on remeasurement recognised in profit or loss. The net gain or loss recognised in profit or loss incorporates any dividend or interest earned on the financial asset and is included in the ‘net income (expense) from financial operations' line item. Held to maturity investments Held-to-maturity investments are non-derivative financial assets with fixed or determinable payments and fixed maturity dates that the Bank has the positive intent and ability to hold to maturity. Subsequent to initial recognition, held-to-maturity investments are measured at amortised cost using the effective interest method less any impairment. Available for sale investments (AFS investments) AFS investments are non-derivatives that are either designated as AFS or are 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). Financial instruments held by the Bank that are traded in an active market are classified as AFS and are stated at fair value at the end of each reporting period. The Bank also has investments in financial instruments that are not traded in an active market but that are also classified as AFS investments and stated at fair value at the end of each reporting period (because the Bank considers 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 are recognised in profit or loss. Other changes in the carrying amount of available for sale investments are recognised in other comprehensive income and accumulated under the heading of “Valuation Adjustment”. When the investment is disposed of or is determined to be impaired, the cumulative gain or loss previously accumulated in the investments revaluation reserve is reclassified to profit or loss. Dividends on AFS equity instruments are recognised in profit or loss when the Bank's right to receive the dividends is established. The fair value of AFS monetary financial assets denominated in a foreign currency is determined in that foreign currency and translated as the described in f) above. The foreign exchange gains and losses that are recognised in profit or loss are determined based on the amortised cost of the monetary asset. Loans and accounts receivable from customers Loans and accounts receivable from customers are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. Loans and accounts receivables from customers (including loans and accounts receivable from customers and interbank loans) are measured at amortised cost using the effective interest method, less any impairment. Interest income is recognised 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 are classified by their nature into the following line items in the Consolidated Financial Statements: - Cash and deposits in banks: this line includes 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 represents 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, etc. - Trading investments: this item includes 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: includes balances of financial instruments purchased under resale agreement. - Financial derivative contracts: financial derivative contracts with positive fair values are presented in this item. It includes both independent contracts as well as derivatives that should and can be separated from a host contract, whether they are for trading or accounted for as derivatives held for hedging, as shown in Note 7 to the Consolidated Financial Statements. · Trading derivatives: includes the fair value of derivatives which do not qualify for hedge accounting, including embedded derivatives separated from hybrid financial instruments. · Hedging derivatives: includes the fair value of derivatives designated as being in a hedging relationship, including the embedded derivatives separated from the hybrid financial instruments. - Interbank loans: this item includes 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. - Loans and accounts receivables from customers: these loans are non-derivative financial assets for which fixed or determined amounts are charged, that are not listed on an active market and which the Bank does not intend to sell immediately or in the short term. When the Bank is the lessor in a lease, and it substantially transfers the risks and rewards incidental to the leased asset, the transaction is presented in loans and accounts receivable from customers while the leased asset is derecognized in the Bank´s statement of financial position. - Investment instruments: are classified into two categories: held-to-maturity investments, and available-for-sale investments. The held-to-maturity investment classification includes only those instruments for which the Bank has the ability and intent to hold to maturity. The remaining investments are treated as available for sale. iv. Classification of financial liabilities for measurement purposes Financial liabilities are classified as either financial liabilities at FVTPL or other financial liabilities. Financial liabilities at FVTPL As of December 31, 2017 and 2016 the Bank does not maintain financial liabilities at FVTPL. Other financial liabilities Other financial liabilities (including interbank borrowings, issued debt instruments and other payables) are initially recorded at fair value and subsequently measured at amortised cost using the effective interest method. v. Classification of financial liabilities for presentation purposes The financial liabilities are classified by their nature into the following line items in the consolidated statements of financial position: - Deposits and other on- demand liabilities: this includes all on-demand obligations except for term savings accounts, which are not considered on-demand instruments in view of their special characteristics. Obligations whose payment may be required during the period are deemed to be on-demand obligations. Operations which become callable the day after the closing date are not treated as on-demand obligations. - Cash items in process of being cleared: this represents 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 includes the balances of sales of financial instruments under securities repurchase and loan agreements. The Bank does not record in its own portfolio instruments acquired under repurchase agreements. - Time deposits and other time liabilities: this shows the balances of deposit transactions in which a term at the end of which they become callable has been stipulated. - Financial derivative contracts: this includes financial derivative contracts with negative fair values (i.e. a liability of the Bank), whether they are for trading or for hedge accounting, as set forth in Note 7. · Trading derivatives: includes the fair value of derivatives which do not qualify for hedge accounting, including embedded derivatives separated from hybrid financial instruments. · Hedging derivatives: includes the fair value of derivatives designated as being in a hedging relationship, including the embedded derivatives separated from the hybrid financial instruments. - Interbank borrowings: this includes 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 includes 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. h) Valuation of financial instruments and recognition of fair value changes 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. “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 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 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. 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 derivati

SIGNIFICANT EVENTS

SIGNIFICANT EVENTS	12 Months Ended
SIGNIFICANT EVENTS	Dec. 31, 2017
Significant Events
SIGNIFICANT EVENTS	NOTE 02 SIGNIFICANT EVENTS As of December 31, 2017, the following significant events have occurred and affected the Bank`s operations and Consolidated Financial Statements. a) The Board On April 5, 2017 an amendments to Banco Santander Chile bylaws was published, agreed at the Extraordinary Shareholders' Meeting held on January 9, 2017, whose minutes were included in a public deed on February 14, 2017 at the Notary of Nancy de la Fuente Hernández. Among others, a consolidated text of the bylaws was established and, after the reforms introduced, its essential clauses are as follows: · Name: Banco Santander-Chile · Object: The execution or celebration of all those acts, contracts, businesses or operations that the laws, especially the General Banking Law, allow banks to perform without prejudice to expand or restrict their sphere of action in harmony with the legal provisions in force or that in the future are established, without the need to amend these bylaws. · Capital: $891,302,881,691, divided into 188,446,126,794 nominative shares, without par value, of the same and only series. · Board: composed of 9 regular members and 2 alternates. At the Ordinary Shareholders' Meeting held on April 26, 2017, the Board of Directors was elected for a period of three years, consisting of nine Regular Directors and two Alternate Directors, the persons elected were: · Directors: Vittorio Corbo Lioi, Oscar von Chrismar Carvajal, Roberto Méndez Torres, Juan Pedro Santa María Pérez, Ana Dorrego de Carlos, Andreu Plaza Lopez, Lucia Santa Cruz Sutil, Orlando Poblete Iturrate and Roberto Zahler Mayanz. · Alternate Directors: Blanca Bustamante Bravo and Raimundo Monge Zegers. b) Use of Profits and Distribution of Dividends The Shareholders’ Meeting of Banco Santander Chile held on April 26, 2017, At the Ordinary General Shareholders' Meeting held on April 26, 2017, together with approving the Financial Statements corresponding to 2016, it was agreed to distribute 70% of the net profits for the year (which are denominated in the financial statements "Profit attributable to holders assets of the Bank "), which amounted to Ch$ 472,351 million. These profits correspond to a dividend of $ 1.75459102 for each share. Likewise, it is approved that the remaining 30% of the profits will be used to increase the Bank's reserves. c) Appointment of External Auditors In the Ordinary General Shareholders' Meeting indicated above, it was agreed to appoint PricewaterhouseCoopers Consultores, Auditores y Compañía Limitada, as external auditors of the Bank and its affiliates for the 2017 fiscal year. d) Bods issued at December 31, 2017 d.1) Senior bonds During the year ended December 31, 2017 the Bank has issued senior bonds in the amount of USD 770.000.000 and AUS 30.000.000. Debt issuance information are included in Note 18. Series Currency Amount Term (anual) Issuance rate (anual) Issuance date Maturity date DN USD 100,000,000 3.0 Libor-USD 3M+0.80% 20-07-2017 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 21-07-2017 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 24-07-2017 27-07-2020 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 23-11-2021 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 23-11-2021 DN USD 50,000,000 3.0 Libor-USD 3M+0.75% 14-09-2017 15-09-2020 DN USD 500,000,000 3.0 2.50% 12-12-2017 15-12-2020 Total USD 770,000,000 AUD AUD 30,000,000 10.0 3.96% 05-12-2017 12-12-2027 Total AUD 30,000,000 d.2) Subordinated bonds As at December 31, 2017 the Bank had not issued subordinated bonds in this financial year. d.3) Mortgage bonds As at December 31, 2017 the Bank had not issued mortgage bonds in this financial year. d.4) Repurchase of bonds The Bank has conducted the following repurchase of bonds as of December 31, 2017: Date Series Amount 06-03-2017 Senior bond USD 6,900,000 12-05-2017 Senior bond UF 1,000,000 16-05-2017 Senior bond UF 690,000 17-05-2017 Senior bond UF 15,000 26-05-2017 Senior bond UF 340,000 01-06-2017 Senior bond UF 590,000 02-06-2017 Senior bond UF 300,000 05-06-2017 Senior bond UF 130,000 19-06-2017 Senior bond UF 265,000 10-07-2017 Senior bond UF 770,000 21-07-2017 Senior bond UF 10,000 28-08-2017 Senior bond UF 400,000 29-08-2017 Senior bond UF 272,000 03-11-2017 Senior bond UF 14,000 29-11-2017 Senior bond UF 400,000 06-12-2017 Senior bond UF 20,000 12-12-2017 Senior bond CLP 10,990,000,000

REPORTING SEGMENTS

REPORTING SEGMENTS	12 Months Ended
REPORTING SEGMENTS	Dec. 31, 2017
Reporting Segments
REPORTING SEGMENTS	NOTE 03 REPORTING SEGMENTS The Bank manages and measures the performance of its operations by business segments. The information disclosed in this note is not necessarily comparable to that of other financial institutions, since it is based on management’s internal information system by segment. Inter-segment transactions are conducted under normal arm’s length commercial terms and conditions. Each segment’s assets, liabilities, and income include items directly attributable to the segment to which they can be allocated on a reasonable basis. Due to changes aimed at allocating customers to those segments best capable of servicing them, and streamlining processes, the Bank has modified its internal structure during 2015. This change in composition of the segments resulted in the following: - Commissions paid in “Net fee and commission income “were reassigned among segments to more appropriately reflect the distributions in accordance with the management of each segment; - The effects of changes in foreign exchange rates of provisions were reallocated to the line item “Other”, to more appropriately reflect the effects directly attributable to the respective segments; - The improvement of the allocation of interest costs at time of placement of the loan. Under IFRS 8, the Bank has aggregated operating segments with similar economic characteristics according to the aggregation criteria specified in the standard. A reporting segment consists of clients that are offered differentiated but, considering how their performance is measured, are homogenous services based on IFRS 8 aggregation criteria, thus they form part of the same reporting segment. Overall, this aggregation has no significant impact on the understanding of the nature and effects of the Bank’s business activities and the economic environment. The Bank has the reportable segments noted below: Retail Banking Consists of individuals and small to middle-sized entities (SMEs) with annual income less than Ch$1,200 million. This segment gives customers a variety of services, including consumer loans, credit cards, auto loans, commercial loans, foreign exchange, mortgage loans, debit cards, checking accounts, savings products, mutual funds, stockbrokerage, and insurance brokerage. Additionally the SME clients are offered government-guaranteed loans, leasing and factoring. Middle-market This segment is made up of companies and large corporations with annual sales exceeding Ch$1,200 million. It serves institutions such as universities, government entities, local and regional governments and companies engaged in the real estate industry who carry out projects to sell properties to third parties and annual sales exceeding Ch$800 million with no upper limit. The companies within this segment have access to many products including commercial loans, leasing, factoring, foreign trade, credit cards, mortgage loans, checking accounts, transactional services, treasury services, financial consulting, savings products, mutual funds, and insurance brokerage. Also companies in the real estate industry are offered specialized services to finance projects, chiefly residential, with the aim of expanding sales of mortgage loans. Global Corporate Banking This segment consists of foreign and domestic multinational companies with sales over Ch$10,000 million. The companies within this segment have access to many products including commercial loans, leasing, factoring, foreign trade, credit cards, mortgage loans, checking accounts, transactional services, treasury services, financial consulting, investments, savings products, mutual funds and insurance brokerage. This segment also consists of a Treasury Division which provides sophisticated financial products, mainly to companies in the Middle-market and Global Corporate Banking segments. These include products such as short-term financing and fund raising, brokerage services, derivatives, securitization, and other tailor-made products. The Treasury area may act as brokers to transactions and also manages the Bank’s investment portfolio. Corporate Activities (“Other”) This segment mainly includes the results of our Financial Management Division, which develops global management functions, including managing inflation rate risk, foreign currency gaps, interest rate risk and liquidity risk. Liquidity risk is managed mainly through wholesale deposits, debt issuances and the Bank’s available for sale portfolio. This segment also manages capital allocation by unit. These activities usually result in a negative contribution to income. In addition, this segment encompasses all the intra-segment income and all the activities not assigned to a given segment or product with customers. The segments’ accounting policies are those described in the summary of accounting policies. The Bank earns most of its income in the form of interest income, fee and commission income and income from financial operations. To evaluate a segment’s financial performance and make decisions regarding the resources to be assigned to segments, the Chief Operating Decision Maker (CODM) bases his assessment on the segment's interest income, fee and commission income, and expenses. Below are the tables showing the Bank’s results by reporting segment for the years ended December 31, 2017, 2016 and 2015 in addition to the corresponding balances of loans and accounts receivable from customers: As of December 31, 2017 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 19,233,169 970,332 206,449 20,595 (293,956) (534,970) 368,450 Middle-market 6,775,734 264,663 36,280 13,751 (19,235) (91,882) 203,577 Commercial Banking 25,008,903 1,234,995 242,729 34,346 (313,191) (626,852) 572,027 Global Corporate Banking 1,633,796 100,808 27,626 50,714 6,440 (62,685) 122,903 Other 83,215 (9,112) 8,708 44,692 4,496 (15,356) 33,428 Total 27,725,914 1,326,691 279,063 129,752 (302,255) (704,893) 728,358 Other operating income 62,016 Other operating expenses and impairment (74,057) Income from investments in associates and other companies 3,963 Income tax expense (145,031) Net income for the year 575,249 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization. As of December 31, 2016 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 18,604,936 931,105 196,845 21,141 (323,888) (529,909) 295,294 Middle-market 6,396,376 244,960 30,851 19,577 (26,748) (83,412) 185,228 Commercial Banking 25,001,312 1,176,065 227,696 40,718 (350,636) (613,321) 480,522 Global Corporate Banking 2,121,513 95,105 25,077 55,927 7,579 (53,935) 129,753 Other 83,606 10,196 1,651 43,713 974 (19,649) 36,885 Total 27,206,431 1,281,366 254,424 140,358 (342,083) (686,905) 647,160 Other operating income 6,427 Other operating expenses and impairment (69,136) Income from investments in associates and other companies 3,012 Income tax expense (109,031) Net income for the year 478,432 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization. As of December 31, 2015 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 17,034,707 873,026 190,380 16,245 (332,657) (533,086) 213,908 Middle-market 6,006,282 229,812 28,537 17,897 (26,147) (77,261) 172,838 Commercial Banking 23,040,989 1,102,838 218,917 34,142 (358,804) (610,347) 386,746 Global Corporate Banking 2,178,643 85,553 15,231 50,327 (28,426) (49,533) 73,152 Other 81,125 66,815 3,479 61,030 (12,047) (1,328) 117,949 Total 25,300,757 1,255,206 237,627 145,499 (399,277) (661,208) 577,847 Other operating income 6,439 Other operating expenses and impairment (58,750) Income from investments in associates and other companies 2,588 Income tax expense (76,395) Net income for the year 451,729 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization.

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS	12 Months Ended
CASH AND CASH EQUIVALENTS	Dec. 31, 2017
Cash and cash equivalents [abstract]
CASH AND CASH EQUIVALENTS	NOTE 04 CASH AND CASH EQUIVALENTS a) The detail of the balances included under cash and cash equivalents is as follows: As of December 31, 2017 2016 MCh$ MCh$ Cash and deposits in banks Cash 613,361 570,317 Deposits at the Central Bank of Chile 441,683 507,275 Deposits in local banks 393 1,440 Deposits in banks abroad 397,485 1,200,357 Subtotals – Cash and deposits in banks 1,452,922 2,279,389 Net cash items in process of collection 181,419 206,810 Cash and cash equivalents 1,634,341 2,486,199 The balance of funds held in cash and at the Central Bank of Chile reflects the monthly average that the Bank must maintain in accordance with the regulations governing minimum reserves although the balance can be withdrawn on demand. 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 which may be delayed in settlement due to timing differences. These transactions were as follows: As of December 31, 2017 2016 MCh$ MCh$ Assets Documents held by other banks (documents to be cleared) 199,619 200,109 Funds receivable 468,526 295,174 Subtotal 668,145 495,283 Liabilities Funds payable 486,726 288,473 Subtotal 486,726 288,473 Cash in process of collection, net 181,419 206,810

TRADING INVESTMENTS

TRADING INVESTMENTS	12 Months Ended
TRADING INVESTMENTS	Dec. 31, 2017
Trading Investments
TRADING INVESTMENTS	NOTE 05 TRADING INVESTMENTS The detail of instruments deemed as financial trading investments is as follows: As of December 31, 2017 2016 MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank Bonds 272,272 158,686 Chilean Central Bank Notes - - Other Chilean Central Bank and Government securities 209,370 237,325 Subtotal 481,642 396,011 Other Chilean securities Time deposits in Chilean financial institutions - - Mortgage finance bonds of Chilean financial institutions - - Chilean financial institution bonds - - Chilean corporate bonds - 976 Other Chilean securities - - Subtotal - 976 Foreign financial securities Foreign Central Banks and Government securities - - Other foreign financial instruments - - Subtotal - - Investments in mutual funds Funds managed by related entities 4,094 - Funds managed by others - - Subtotal 4,094 - Total 485,736 396,987 As of December 31, 2017 and 2016, there were no trading investments sold under contracts to resell to clients and financial institutions.

INVESTMENTS UNDER RESALE AGREEM

INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS	12 Months Ended
	Dec. 31, 2017
Investments Under Resale Agreements And Obligations Under Repurchase Agreements
INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS	NOTE 06 INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS a) Rights arising from resale agreements The Bank purchases financial instruments agreeing to resell them at a future date. As of December 31, 2017 and 2016, rights associated with instruments acquired under contracts to resell are as follows: As of December 31, 2017 2016 From 1 day and less than 3 months More than 3 months and less than 1 year More than 1 year Total From 1 day and less than 3 months More than 3 months and less than 1 year More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities from the Chilean Government and the Chilean Central Bank Chilean Central Bank Bonds - - - - 3,260 - - 3,260 Chilean Central Bank Notes - - - - - - - - Other securities from the Government and the Chilean Central Bank - - - - 3,476 - - 3,476 Subtotal - - - - 6,736 - - 6,736 Total - - - - 6,736 - - 6,736 b) Obligations arising from repurchase agreements The Bank raises funds by selling financial instruments and committing itself to buy them back at future dates, plus interest at a predetermined rate. As of December 31, 2017 and 2016, obligations related to instruments sold under repurchase agreements are as follows: As of December 31, 2017 2016 From 1 day to less than 3 months More than 3 months and less than 1 year More than 1 year Total From 1 day to less than 3 months More than 3 months and less than 1 year More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities from Chilean Government and the Chilean Central Bank: Chilean Central Bank Bonds - - - - - - - - Chilean Central Bank Notes - - - - 155,044 - - 155,044 Other securities from the Government and the Chilean Central Bank 241,995 - - 241,995 - - - - Subtotal 241,995 - - 241,995 155,044 - - 155,044 Instruments from other domestic institutions: Time deposits in Chilean financial institutions 1,118 38 - 1,156 56,898 495 - 57,393 Subtotal 1,118 38 - 1,156 56,898 495 - 57,393 Instruments from other foreign institutions: Securities from Govemment or foreign Central Banks 24,910 - - 24,910 - - - - Subtotal 24,910 - - 24,910 - - - - Total 268,023 38 - 268,061 211,942 495 - 212,437 c) As of December 31, 2017 2016 Available for sale portfolio Trading portfolio Total Available for sale portfolio Trading portfolio Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities: Chilean Central Bank Bonds - - - - - - Chilean Central Bank Notes - - - 155,044 - 155,044 Other securities from the Government and the Chilean Central Bank 241,995 - 241,995 - - - Subtotal 241,995 - 241,995 155,044 - 155,044 Other Chilean securities: Time deposits in Chilean financial institutions 1,156 - 1,156 57,393 - 57,393 Subtotal 1,156 - 1,156 57,393 - 57,393 Instruments from other foreign institutions: Securities from Govemment or foreign Central Banks 24,910 - 24,910 - - - Subtotal 24,910 - 24,910 - - - Total 268,061 - 268,061 212,437 - 212,437

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING	12 Months Ended
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING	Dec. 31, 2017
Derivative Financial Instruments And Hedge Accounting
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING	NOTE 07 DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING a) As of December 31, 2017 and 2016 the Bank holds the following portfolio of derivative instruments: As of December 31, 2017 Notional amount Fair value Up to 3 Months More than 3 months to 1 year More than 1 year Total Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fair value hedge derivatives Interest rate swaps - 162,985 1,554,171 1,717,156 23,003 1,424 Cross currency swaps - 715,701 5,362,772 6,078,473 15,085 65,724 Subtotal - 878,686 6,916,943 7,795,629 38,088 67,148 Cash flow hedge derivatives Currency forwards 801,093 218,982 - 1,020,075 39,233 59 Cross currency swaps 421,428 1,637,604 6,672,566 8,731,598 36,403 128,355 Subtotal 1,222,521 1,856,586 6,672,566 9,751,673 75,636 128,414 Trading derivatives Currency forwards 17,976,683 10,679,327 3,091,393 31,747,403 412,994 502,555 Interest rate swaps 9,069,964 14,389,389 46,342,779 69,802,132 467,188 392,366 Cross currency swaps 2,963,641 7,503,144 47,111,371 57,578,156 1,241,632 1,042,120 Call currency options 190,386 37,099 49,853 277,338 1,322 1,950 Call interest rate options - - - - - - Put currency options 192,722 28,616 50,470 271,808 1,787 4,935 Other derivatives - - - - - - Subtotal 30,393,396 32,637,575 96,645,866 159,676,837 2,124,923 1,943,926 Total 31,615,917 35,372,847 110,235,375 177,224,139 2,238,647 2,139,488 As of December 31, 2016 Notional amount Fair value Up to 3 months More than 3 months to 1 year More than 1 year Total Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fair value hedge derivatives Interest rate swaps 74,086 514,454 1,402,870 1,991,410 38,977 211 Cross currency swaps 424,086 505,902 1,239,490 2,169,478 32,640 32,868 Subtotal 498,172 1,020,356 2,642,360 4,160,888 71,617 33,079 Cash flow hedge derivatives Currency forwards 915,879 639,939 - 1,555,818 10,216 3,441 Cross currency swaps 897,480 2,613,706 4,260,194 7,771,380 43,591 68,894 Subtotal 1,813,359 3,253,645 4,260,194 9,327,198 53,807 72,335 Trading derivatives Currency forwards 15,840,731 11,240,251 3,358,765 30,439,747 185,618 209,955 Interest rate swaps 6,889,665 12,512,285 49,747,459 69,149,409 627,047 526,695 Cross currency swaps 3,966,443 7,589,201 53,148,109 64,703,753 1,562,068 1,449,550 Call currency options 73,943 20,994 2,664 97,601 521 5 Call interest rate options - - - - - - Put currency options 52,143 7,892 2,664 62,699 104 542 Other derivatives - - - - - - Subtotal 26,822,925 31,370,623 106,259,661 164,453,209 2,375,358 2,186,747 Total 29,134,456 35,644,624 113,162,215 177,941,295 2,500,782 2,292,161 b) Hedge accounting Fair value hedge: The Bank uses cross-currency swaps and interest rate swaps to hedge its exposure to changes in fair value of hedged items attributable to interest rates. The aforementioned hedging instruments change the effective cost of long-term issuances from a fixed interest rate to a variable interest rate. Below is a detail of the hedged elements and hedge instruments under fair value hedges as of December 31, 2017 and 2016, classified by term to maturity: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivable from customers: Endorsable mortgage mutual loans 587,412 801,230 106,910 - 1,495,552 Available for sale investments Yankee bonds - - 6,169 64,769 70,938 Mortgage financing bonds - - 4,738 - 4,738 Treasury bonds (BTP) - - - 129,539 129,539 Chiliean Treasury bonds - 21,377 762,727 - 784,104 Chiliean Central Bank bonds 128,289 218,640 443,357 - 790,286 Time deposits and other time liabilities Time deposits 137,985 - - - 137,985 Issued debt instruments Senior bonds 25,000 1,399,686 670,488 2,287,313 4,382,487 Total 878,686 2,440,933 1,994,389 2,481,621 7,795,629 Hedging instrument Cross currency swaps 715,701 1,512,238 1,813,221 2,037,313 6,078,473 Interest rate swaps 162,985 928,695 181,168 444,308 1,717,156 Total 878,686 2,440,933 1,994,389 2,481,621 7,795,629 As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivable from customers: Endorsable mortgage mutual loans - - - - - Available for sale investments Yankee bonds - - 6,660 56,610 63,270 Mortgage financing bonds - - 5,651 - 5,651 Treasury bonds (BTP) - - 33,300 366,300 399,600 Chiliean Treasury bonds - - - - - Chileian Central Bank bonds (BCP) - - - - - Time deposits and other time liabilities Time deposits 993,659 - - - 993,659 Issued debt instruments Senior bonds 524,869 652,046 1,000,905 520,888 2,698,708 Total 1,518,528 652,046 1,046,516 943,798 4,160,888 Hedging instrument Cross currency swaps 929,988 437,046 531,556 270,888 2,169,478 Interest rate swaps 588,540 215,000 514,960 672,910 1,991,410 Total 1,518,528 652,046 1,046,516 943,798 4,160,888 Cash flow hedges The Bank uses cross currency swaps to hedge the risk from variability of cash flows attributable to changes in the interest rates of bonds and interbank loans at a variable rate. To cover the inflation risk in some items, both forwards as well as currency swaps are used. Below is the notional amount of the hedged items as of December 31, 2017 and 2016, and the period when the cash flows will be generated: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Mortgage loans 1,153,348 583,061 1,335,141 2,353,871 5,425,421 Commercial loans 644,608 - - - 644,608 Available for sale investments Yankee bond - - 25,290 132,572 157,862 Chilean Central Bank bonds - - 242,819 - 242,819 Time deposits - - - - - Time deposits and other time liabilities Time deposits - - - - - Issued debt instruments Senior bonds (variable rate) 120,520 647,550 302,454 - 1,070,524 Senior bonds (fixed rate) 241,183 121,619 224,401 300,874 888,077 Interbank borrowings Interbank loans 919,448 402,914 - - 1,322,362 Total 3,079,107 1,755,144 2,130,105 2,787,317 9,751,673 Hedging instrument Cross currency swaps 2,059,032 1,755,144 2,130,105 2,787,317 8,731,598 Currency forwards 1,020,075 - - - 1,020,075 Total 3,079,107 1,755,144 2,130,105 2,787,317 9,751,673 As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Mortgage loans 1,083,972 312,546 900,746 956,803 3,254,067 Commercial loans 972,360 - - - 972,360 Available for sale investments Yankee bond - - 126,140 406,881 533,021 Chilean Central Bank bonds 20,754 - - - 20,754 Time deposits 26,196 - - - 26,196 Time deposits and other time liabilities Time deposits 285,090 - - - 285,090 Issued debt instruments Senior bonds (variable rate) 854,414 399,451 285,355 - 1,539,220 Senior bonds (fixed rate) 140,765 108,409 243,121 105,600 597,895 Interbank borrowings Interbank loans 1,683,453 415,142 - - 2,098,595 Total 5,067,004 1,235,548 1,555,362 1,469,284 9,327,198 Hedging instrument Cross currency swaps 3,511,186 1,235,548 1,555,362 1,469,284 7,771,380 Currency forwards 1,555,818 - - - 1,555,818 Total 5,067,004 1,235,548 1,555,362 1,469,284 9,327,198 Below is an estimate of the periods in which flows are expected to be produced: b.1) Forecasted cash flows for interest rate risk: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 308,737 60,515 13,780 2,594 385,626 Outflows (60,733) (43,507) (7,757) (878) (112,875) Net flows 248,004 17,008 6,023 1,716 272,751 Hedging instrument Inflows 60,733 43,507 7,757 878 112,875 Outflows () (308,737) (60,515) (13,780) (2,594) (385,626) Net flows (248,004) (17,008) (6,023) (1,716) (272,751) ()Only includes cash flow forecast portion of the hedge instruments used to cover interest rate risk. As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 159,439 83,193 32,647 3,748 279,027 Outflows (72,631) (45,857) (18,040) - (136,528) Net flows 86,808 37,336 14,607 3,748 142,499 Hedging instrument Inflows 72,631 45,857 18,040 - 136,528 Outflows () (159,439) (83,193) (32,647) (3,748) (279,027) Net flows (86,808) (37,336) (14,607) (3,748) (142,499) ()Only includes cash flow forecast portion of the hedge instruments used to cover interest rate risk. b.2) Forecasted cash flows for inflation risk: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 20,300 29,008 103,544 286,471 439,323 Outflows (1,645) - - - (1,645) Net flows 18,655 29,008 103,544 286,471 437,678 Hedging instrument Inflows 1,645 - - - 1,645 Outflows (20,300) (29,008) (103,544) (286,471) (439,323) Net flows (18,655) (29,008) (103,544) (286,471) (437,678) As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 22,586 11,896 56,107 115,753 206,342 Outflows (4,900) - - - (4,900) Net flows 17,686 11,896 56,107 115,753 201,442 Hedging instrument Inflows 4,900 - - - 4,900 Outflows (22,586) (11,896) (56,107) (115,753) (206,342) Net flows (17,686) (11,896) (56,107) (115,753) (201,442) b.3) Forecasted cash flows for exchange rate risk: As of December 31, 2017 and 2016 the Bank has no forecasted cash flows for exchange rate risk. c) The accumulated effect of the mark to market adjustment of cash flow hedges produced by hedge instruments used in hedged cash flow was recorded in the Consolidated Statement of Changes in Equity, specifically within Other comprehensive income, as of December 31, 2017 and 2016, is as follows: As of December 31, Hedged item 2017 2016 MCh$ MCh$ Interbank loans (4,779) (6,019) Time deposits and other time liabilities - (294) Issued debt instruments (8,683) (8,169) Available for sale investments (364) 12,833 Loans and accounts receivable from customers 10,264 3,937 Net flows (3,562) 2,288 Since the inflows and outflows for both the hedged element and the hedging instrument mirror each other, the hedges are nearly 100% effective, which means that the fluctuations of fair value attributable to risk components are almost completely offset. As of December 31, 2017 and 2016 the Bank records inefficiencies for an amount of Ch$1,187 million and Ch$355 million, respectively. During the year, the Bank did not have any cash flow hedges of forecast transactions. d) Below is a presentation of income generated by cash flow hedges amount that were reclassified from other comprehensive income to income for the year: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Bond hedging derivatives - (77) 6 Interbank loans hedging derivatives - - - Cash flow hedge net income gain (loss) - (77) 6 See Note 23 - Equity, letter e) e) Net investment hedges in foreign operations: As of December 31, 2017 and 2016, the Bank does not have any foreign net investment hedges in its hedge accounting portfolio.

INTERBANK LOANS

INTERBANK LOANS	12 Months Ended
INTERBANK LOANS	Dec. 31, 2017
Interbank Loans
INTERBANK LOANS	NOTE 08 INTERBANK LOANS a) As of December 31, 2017 and 2016, balances of “Interbank loans”are as follows: As of December 31, 2017 2016 MCh$ MCh$ Domestic banks Interbank loans - 23 Other domestic bank loans - 51 Foreign Interbank Loans Interbank loans – Foreign 162,685 272,733 Provisions and impairment for foreign bank loans (472) (4,135) Total 162,213 268,672 b) The amount in each period for provisions and impairment of interbank loans is shown below: As of December 31, 2017 2016 Domestic banks Foreign banks Total Domestic banks Foreign banks Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1 - 4,135 4,135 - 1,166 1,166 Provisions established 251 56 307 1 3,051 3,052 Provisions released (251) (3,719) (3,970) (1) (82) (83) Total - 472 472 - 4,135 4,135

LOANS AND ACCOUNTS RECEIVABLE F

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS	12 Months Ended
LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS	Dec. 31, 2017
Loans And Accounts Receivable From Customers
LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS	NOTE 09 LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS a) Loans and accounts receivable from customers As of December 31, 2017 and 2016, the composition of the loan portfolio is as follows: As of December 31, 2017 Assets before allowances Allowances established Normal portfolio Impaired portfolio Total Individual allowances Group allowances Total Assets net balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans Commercial loans 9,244,460 746,196 9,990,656 133,254 168,736 301,990 9,688,666 Foreign trade loans 1,506,359 68,154 1,574,513 49,026 1,444 50,470 1,524,043 Checking accounts debtors 179,982 15,714 195,696 2,726 11,740 14,466 181,230 Factoring transactions 444,644 5,246 449,890 4,788 1,207 5,995 443,895 Student loans 77,226 11,064 88,290 - 5,922 5,922 82,368 Leasing transactions 1,335,653 121,351 1,457,004 17,529 12,793 30,322 1,426,682 Other loans and account receivable 106,815 45,778 152,593 11,467 17,231 28,698 123,895 Subtotal 12,895,139 1,013,503 13,908,642 218,790 219,073 437,863 13,470,779 Mortgage loans Loans with mortgage finance bonds 22,620 1,440 24,060 - 123 123 23,937 Endorsable mortgage mutual loans 110,659 4,419 115,078 - 594 594 114,484 Other mortgage mutual loans 8,501,072 456,685 8,957,757 - 68,349 68,349 8,889,408 Subtotal 8,634,351 462,544 9,096,895 - 69,066 69,066 9,027,829 Consumer loans Installment consumer loans 2,613,041 297,701 2,910,742 - 240,962 240,962 2,669,780 Credit card balances 1,341,098 23,882 1,364,980 - 33,401 33,401 1,331,579 Leasing transactions 4,638 77 4,715 - 62 62 4,653 Other consumer loans 271,789 5,466 277,255 - 9,331 9,331 267,924 Subtotal 4,230,566 327,126 4,557,692 - 283,756 283,756 4,273,936 Total 25,760,056 1,803,173 27,563,229 218,790 571,895 790,685 26,772,544 As of December 31, 2016 Assets before allowances Allowances established Normal portfolio Impaired portfolio Total Individual allowances Group allowances Total Assets net balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans Commercial loans 9,160,354 693,303 9,853,657 159,463 148,703 308,166 9,545,491 Foreign trade loans 1,750,196 79,708 1,829,904 56,919 901 57,820 1,772,084 Checking accounts debtors 166,073 13,395 179,468 2,794 6,854 9,648 169,820 Factoring transactions 291,112 5,639 296,751 4,787 620 5,407 291,344 Student loans - - - - - - - Leasing transactions 1,376,972 108,151 1,485,123 17,593 5,546 23,139 1,461,984 Other loans and account receivable 193,589 28,973 222,562 4,780 20,482 25,262 197,300 Subtotal 12,938,296 929,169 13,867,465 246,336 183,106 429,442 13,438,023 Mortgage loans Loans with mortgage finance bonds 31,368 1,211 32,579 - 16 16 32,563 Endorsable mortgage mutual loans 115,400 4,534 119,934 - 190 190 119,744 Other mortgage mutual loans 8,074,900 391,943 8,466,843 - 56,803 56,803 8,410,040 Subtotal 8,221,668 397,688 8,619,356 - 57,009 57,009 8,562,347 Consumer loans Installment consumer loans 2,468,692 253,673 2,722,365 - 249,545 249,545 2,472,820 Credit card balances 1,418,409 29,709 1,448,118 - 41,063 41,063 1,407,055 Leasing transactions 5,062 55 5,117 - 72 72 5,045 Other consumer loans 266,056 5,147 271,203 - 9,339 9,339 261,864 Subtotal 4,158,219 288,584 4,446,803 - 300,019 300,019 4,146,784 Total 25,318,183 1,615,441 26,933,624 246,336 540,134 786,470 26,147,154 b) Portfolio characteristics: As of December 31, 2017 and 2016 the portfolio before allowances is as follows, by customer’s economic activity: Domestic loans () Foreign interbank loans Total loans Distribution percentage As of December 31 As of December 31, As of December 31, As of December 31, 2017 2016 2017 2016 2017 2016 2017 2016 MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ % % Commercial loans Manufacturing 1,218,232 1,180,886 1,218,232 1,180,886 4.39 4.34 Mining 302,037 340,554 - - 302,037 340,554 1.09 1.25 Electricity, gas, and water 336,048 442,936 - - 336,048 442,936 1.21 1.63 Agriculture and livestock 1,114,597 1,096,659 - - 1,114,597 1,096,659 4.02 4.03 Forest 98,941 96,806 - - 98,941 96,806 0.36 0.36 Fishing 215,994 296,592 - - 215,994 296,592 0.78 1.09 Transport 697,948 787,510 - - 697,948 787,510 2.52 2.89 Communications 168,744 196,934 - - 168,744 196,934 0.61 0.72 Construction 1,977,417 1,792,485 - - 1,977,417 1,792,485 7.13 6.59 Commerce 3,131,870 3,120,400 - - 3,294,555 3,393,133 11.88 12.47 Services 467,747 482,900 162,685 272,733 467,747 482,900 1.69 1.77 Other 4,179,067 4,032,877 - - 4,179,067 4,032,877 15.07 14.84 - - Subtotal 13,908,642 13,867,539 162,685 272,733 14,071,327 14,140,272 50.75 51.98 Mortgage loans 9,096,895 8,619,356 9,096,895 8,619,356 32.81 31.68 - - Consumer loans 4,557,692 4,446,803 4,557,692 4,446,803 16.43 16.34 - - Total 27,563,229 26,933,698 162,685 272,733 27,725,914 27,206,431 100.00 100.0 () Includes domestic interbank loans for Ch$ 0 million as of December 31, 2017 (Ch$74 million as of December 31, 2016), see Note 8. c) Impaired Portfolio i) As of December 31, 2017 and 2016, the impaired portfolio is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Individual impaired portfolio 427,890 - - 427,890 439,707 - - 439,707 Non-performing loans (1) (collectively evaluated) 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131 Other impaired portfolio 217,091 300,776 223,955 741,822 172,624 250,116 188,863 611,603 Total 1,013,503 462,544 327,126 1,803,173 929,169 397,688 288,584 1,615,441 (1) Non-performing loans include the aggregate unpaid principal and accrued but unpaid interest on all loans with at least one installment at least 90 days past-due. ii) The impaired portfolio with or without guarantee as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Secured debt 582,557 413,716 34,260 1,030,533 519,821 357,320 35,134 912,275 Unsecured debt 430,946 48,828 292,866 772,640 409,348 40,368 253,450 703,166 Total 1,013,503 462,544 327,126 1,803,173 929,169 397,688 288,584 1,615,441 iii) The portfolio of non-performing loans with or without guarantee, as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Secured debt 167,909 141,413 8,896 318,218 159,965 129,632 8,940 298,537 Unsecured debt 200,613 20,355 94,275 315,243 156,873 17,940 90,781 265,594 Total 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131 iv) The portfiolio of non-performing portfolio as of December 31, 2017 and 2016 is as follows: As of December31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ Non-performing >90 days 362,968 159,265 92,541 614,774 311,755 145,084 84,458 541,297 Non-performing <90 days 5,554 2,503 10,630 18,687 5,083 2,488 15,263 22,834 Total 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131 d) Allowances The changes in allowance balances during 2017 and 2016 are as follows: Activity during 2017 Commercial loans Mortgage loans Consumer loans Total Individual Group Group Group MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1, 2017 246,336 183,106 57,009 300,019 786,470 Allowances established (1) 64,658 148,681 43,621 252,038 508,998 Allowances released (2) (55,925) (20,491) (11,427) (46,089) (133,932) Allowances released due to charge-off (3) (36,279) (92,223) (20,137) (222,212) (370,851) Balances as of December 31, 2017 218,790 219,073 69,066 283,756 790,685 Activity during 2016 Commercial loans Mortgage loans Consumer loans Total Individual Group Group Group MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1, 2016 256,505 174,696 62,427 267,507 761,135 Allowances established (1) 61,002 133,855 50,892 280,544 526,293 Allowances released (2) (43,183) (14,432) (34,246) (30,790) (122,651) Allowances released due to charge-off (3) (27,988) (111,013) (22,064) (217,242) (378,307) Balances as of December 31, 2016 246,336 183,106 57,009 300,019 786,470 (1) Represents gross allowances made in respect of increased risk of loss during the period and loan growth. (2) Represents the gross amount of loan loss allowances released during the year as a consequence of reduction in the level of risk existing in the loan portfolio, including as a result of improvement in the credit risk classification of borrowers and loans paid. (3) Represents the gross amount of loan loss allowances removed due to charge-off. e) Recoveries by type of loan For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Commercial loans 32,401 27,185 26,032 Consumer loans 39,972 41,072 35,565 Residential mortgage loans 10,942 10,041 6,543 Total 83,315 78,298 68,140 Recoveries of loans previously charged off are recognized as income in the line item “Provision for loans losses”. We only recognize as a recovery interest and/or principal paid in cash in connection with a loan that has already been charged-off in its entirety. Such recoveries do not have an impact on our allowance for loan losses as these recoveries are for loans that have been already charged-off and recognized as a loss in our income statement and are no longer on-balance sheet. f) Allowances established on customer and interbank loans The following chart shows the balance of allowances established, associated with credits granted to customers and banks: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Customers loans 508,998 526,293 545,056 Interbank loans 307 3,052 1,357 Total 509,305 529,345 546,413 g) Portfolio by its impaired and non-impaired status. As of December 31, 2017 Non-impaired Impaired Portfolio total Commercial Mortgage Consumer Total non impaired Commercial Mortgage Consumer Total impaired Commercial Mortgage Consumer Total portfolio MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current portfolio 12,737,508 8,357,733 4,012,489 25,107,730 449,895 158,770 110,184 718,849 13,187,403 8,516,503 4,122,673 25,826,579 Overdue for 1-29 days 103,908 180,294 132,136 416,338 110,834 74,072 46,283 231,189 214,742 254,366 178,419 647,527 Overdue for 30-89 days 53,723 96,324 85,941 235,988 89,806 70,437 78,118 238,361 143,529 166,761 164,059 474,349 Overdue for 90 days or more - - - - 362,968 159,265 92,541 614,774 362,968 159,265 92,541 614,774 Total portfolio before allowances 12,895,139 8,634,351 4,230,566 25,760,056 1,013,503 462,544 327,126 1,803,173 13,908,642 9,096,895 4,557,692 27,563,229 Overdue loans (less than 90 days) presented as portfolio percentage 1.22% 3.20% 5.15% 2.53% 19.80% 31.24% 38.03% 26.04% 2.58% 4.63% 7.51% 4.07% Overdue loans (90 days or more) presented as portfolio percentage. - - - - 35.81% 34.43% 28.29% 34.09% 2.61% 1.75% 2.03% 2.23% As of December 31, 2016 Non-impaired Impaired Portfolio total Commercial Mortgage Consumer Total non impaired Commercial Mortgage Consumer Total impaired Commercial Mortgage Consumer Total portfolio MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current portfolio 12,765,961 7,944,260 3,957,566 24,667,787 463,176 133,816 100,670 697,662 13,229,137 8,078,076 4,058,236 25,365,449 Overdue for 1-29 days 97,302 69,227 113,031 279,560 35,777 12,984 32,536 81,297 133,079 82,211 145,567 360,857 Overdue for 30-89 days 75,033 208,181 87,622 370,836 118,461 105,804 70,920 295,185 193,494 313,985 158,542 666,021 Overdue for 90 days or more - - - - 311,755 145,084 84,458 541,297 311,755 145,084 84,458 541,297 Total portfolio before allowances 12,938,296 8,221,668 4,158,219 25,318,183 929,169 397,688 288,584 1,615,441 13,867,465 8,619,356 4,446,803 26,933,624 Overdue loans (less than 90 days) presented as portfolio percentage 1.33% 3.37% 4.83% 2.57% 16.60% 29.87% 35.85% 23.31% 2.35% 4.60% 6.84% 3.81% Overdue loans (90 days or more) presented as portfolio percentage. - - - - 33.55% 36.48% 29.27% 33.51% 2.25% 1.68% 1.90% 2.01% Reconciliation of overdue loans with non-performing loans As of December 31, 2017 Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ Overdue loans 362,968 159,265 92,541 614,774 Loans with not overdue but classified as non-performing loans 5,554 2,503 10,630 18,687 Total 368,522 161,768 103,171 633,461 As of December 31, 2016 Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ Overdue loans 311,755 145,084 84,458 541,297 Loans with not overdue but classified as non-performing loans 5,083 2,488 15,263 22,834 Total 316,838 147,572 99,721 564,131

AVAILABLE FOR SALE INVESTMENTS

AVAILABLE FOR SALE INVESTMENTS	12 Months Ended
AVAILABLE FOR SALE INVESTMENTS	Dec. 31, 2017
Available For Sale Investments
AVAILABLE FOR SALE INVESTMENTS	NOTE 10 AVAILABLE FOR SALE INVESTMENTS As of December 31, 2017 and 2016,detail of instruments deemed as available for sale investments is as follows: As of December 31, 2017 2016 MCh$ MCh$ Chilean central bank and government securities Chilean central bank bonds 816,331 468,386 Chilean central bank notes 330,952 1,222,283 Other Chilean central bank and government securities 1,115,518 52,805 Subtotal 2,262,801 1,743,474 Other Chilean securities Time deposits in Chilean financial institutions 2,361 891,320 Mortgage finance bonds of Chilean financial institutions 22,312 25,488 Other instruments issued in the country 3,000 1,680 Subtotal 27,673 918,488 Foreign financial securities Foreign Central Banks and Government securities 132,822 387,146 Other foreign financial securities 151,250 339,798 Subtotal 284,072 726,944 Total 2,574,546 3,388,906 As of December 31, 2017 and 2016, the line item Chilean central bank and government securities As of December 31, 2017 and 2016, the line item Other Chilean securities As of December 31, 2017 and 2016, the line item Foreign financial securities As of December 31, 2017 available for sale investments included a cumulative net unrealized income of Ch$1,855 million, recorded as a “Valuation adjustment” in Other comprehensive income, distributed between Ch$459 million attributable to the equity holders of the Bank and Ch$1,396 million attributable to non-controlling interest. As of December 31, 2016 available for sale investments included a cumulative net unrealized loss of Ch$7,375 million, recorded as a “Valuation adjustment” in Other comprehensive income, distributed between Ch$6,449 million attributable to the equity holders of the Bank and Ch$926 million attributable to non-controlling interest. Gross profits and losses realized on the sale of available for sale investments as of December 31, 2017, 2016 and 2015, are as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Sale of available for sale investments generating realized profits 6,469,344 6,522,549 2,627,490 Realized profits 4,867 12,333 22,473 Sale of available for sale investments generating realized losses 466.732 346,906 346,450 Realized losses 3 132 72 The Bank evaluated those instruments with unrealized losses as of December 31, 2017 and 2016 and concluded they were not impaired. This review consisted of evaluating the economic reasons for any declines, the credit ratings of the securities’ issuers, and the Bank’s intention and ability to hold the securities until the unrealized loss is recovered. Based on this analysis, the Bank believes that there were no significant or prolonged declines nor changes in credit risk which would cause impairment in its investment portfolio, since most of the decline in fair value of these instruments was caused by market conditions which the Bank considers to be temporary. All of the instruments that have unrealized losses as of December 31, 2017 and 2016, were not in a continuous unrealized loss position for more than one year. The following charts show the available for sale investments cumulative unrealized profit and loss, as of December 31, 2017 and 2016: As of December 31, 2017: Less than 12 months More than 12 months Total Acquisition Fair value Unrealized profit Unrealized loss Acquisition cost Fair value Unrealized profit Unrealized loss Acquisition Fair value Unrealized profit Unrealized loss MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean central bank and government securities Chilean central bank Bonds 816,164 816,331 5,513 (5,346) - - - - 816,164 816,331 5,513 (5,346) Chilean central bank Notes 330,923 330,952 30 (1) - - - - 330,923 330,952 30 (1) Other Chilean central bank and government securities 1,117,447 1,115,518 2,960 (4,888) - - - - 1,117,447 1,115,518 2,960 (4,888) Subtotal 2,264,534 2,262,801 8,503 (10,235) - - - - 2,264,534 2,262,801 8,503 (10,235) Other Chilean securities Time deposits in Chilean financial institutions 2,361 2,361 - - - - - - 2,361 2,361 - - Mortgage finance bonds of Chilean financial institutions 21,867 22,312 445 - - - - - 21,867 22,312 445 - Chilean financial institution bonds - - - - - - - - - - - - Chilean corporate bonds - - - - - - - - - - - - Other Chilean securities 220 3,000 2,780 - - - - - 220 3,000 2,780 - Subtotal 24,448 27,673 3,225 - - - - - 24,448 27,673 3,225 - Foreign financial securities Foreign central banks and government securities 133,301 132,822 847 (1,326) - - - - 133,301 132,822 847 (1,326) Other foreign financial securities 150,408 151,250 1,097 (256) - - - - 150,408 151,250 1,097 (256) Subtotal 283,709 284,072 1,944 (1,582) - - - - 283,709 284,072 1,944 (1,582) Total 2,572,691 2,574,546 13,672 (11,817) - - - - 2,572,691 2,574,546 13,672 (11,817) As of December 31, 2016: Less than 12 months More than 12 months Total Acquisition cost Fair value Unrealized profit Unrealized loss Acquisition cost Fair value Unrealized profit Unrealized loss Acquisition cost Fair value Unrealized profit Unrealized loss MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean central bank and government securities Chilean central bank Bonds 461,793 468,386 6,612 (19) - - - - 461,793 468,386 6,612 (19) Chilean central bank notes 1,222,263 1,222,283 23 (3) - - - - 1,222,263 1,222,283 23 (3) Other Chilean central bank and government securities 52,411 52,805 394 - - - - - 52,411 52,805 394 - Subtotal 1,736,467 1,743,474 7,029 (22) - - - - 1,736,467 1,743,474 7,029 (22) Other Chilean securities Time deposits in Chilean financial institutions 891,276 891,320 108 (64) - - - - 891,276 891,320 108 (64) Mortgage finance bonds of Chilean financial institutions 25,021 25,488 469 (2) - - - - 25,021 25,488 469 (2) Chilean financial institution bonds - - - - - - - - - - - - Chilean corporate bonds - - - - - - - - - - - - Other Chilean securities 220 1,680 1,460 - - - - - 220 1,680 1,460 - Subtotal 916,517 918,488 2,037 (66) - - - - 916,517 918,488 2,037 (66) Foreign financial securities Foreign central banks and government securities 387,077 387,146 69 - - - - - 387,077 387,146 69 - Other foreign financial securities 341,470 339,798 655 (2,327) - - - - 341,470 339,798 655 (2,327) Subtotal 728,547 726,944 724 (2,327) - - - - 728,547 726,944 724 (2,327) Total 3,381,531 3,388,906 9,790 (2,415) - - - - 3,381,531 3,388,906 9,790 (2,415)

INVESTMENTS IN ASSOCIATES AND O

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES	12 Months Ended
INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES	Dec. 31, 2017
Investments In Associates And Other Companies
INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES	NOTE 11 INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES a) Investments in associates and other, are shown in the following table: Investment Ownership interest As of December 31 Investment value As of December 31, Profit and loss As of December 31, 2017 MCh$ 2016 MCh$ 2015 MCh$ 2017 MCh$ 2016 MCh$ 2017 MCh$ 2016 MCh$ 2015 MCh$ Company Redbanc S.A. 33.43 33.43 33.43 2,537 2,184 353 373 215 Transbank S.A. 25.00 25.00 25.00 14,534 12,510 2,024 1,302 1,256 Centro de Compensación Automatizado 33.33 33.33 33.33 1,589 1,353 236 248 212 Sociedad Interbancaria de Depósito de Valores S.A. 29.29 29.29 29.29 1,087 235 195 213 Cámara de Compensación de Alto Valor S.A. (1,2&3) 15.00 14.93 14.23 909 866 66 98 127 Administrador Financiero del Transantiago S.A. 20.00 20.00 20.00 3,098 2,781 317 230 323 Sociedad Nexus S.A. 12.90 12.90 12.90 1,911 1,469 442 247 225 Servicios de Infraestructura de Mercado OTC S.A. (1&2) 12.07 12.07 11.11 1,489 1,378 115 132 (115) Subtotal 27,154 23,479 3,788 2,825 2,456 Shares or rights in other companies () Bladex 136 136 25 26 25 Stock Exchanges 287 157 150 161 107 Others 8 8 - - - Total 27,585 23,780 3,963 3,012 2,5 () Investments in associates and other companies do not have market prices. (1) During the third quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.84% and 11.93% respectively. (2) During the last quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.93% and 12.07% respectively. (3) In February 2017, Banco Paris sold to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA", the Bank's share increased to 15.00% (4) In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensación de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing our participation to 14.23%. b) As of December 31, 2017 2016 2015 Net income Net income Net income Assets Liabilities Equity Assets Liabilities Equity Assets Liabilities Equity MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Centro de Compensación Automatizado 6,871 2,174 3,989 708 5,508 1,523 3,241 744 5,148 1,897 2,616 635 Redbanc S.A. 21,235 13,751 6,428 1,056 19,927 13,505 5,307 1,115 20,296 14,877 4,777 642 Transbank S.A. 822,487 765,683 48,709 8,095 710,475 660,957 44,309 5,209 601,627 561,325 35,278 5,024 Sociedad Interbancaria de Depósito de Valores S.A. 3,720 60 2,858 802 3,204 103 2,435 666 2,714 58 2,093 563 Sociedad Nexus S.A. 32,669 18,888 10,354 3,427 30,038 19,229 8,898 1,911 23,153 13,682 7,730 1,741 Servicios de Infraestructura de Mercado OTC S.A. 17,913 6,414 10,963 536 29,258 18,258 9,906 1,094 17,631 7,800 10,869 (1,038) Administrador Financiero del Transantiago S.A. 51,304 35,814 13,907 1,583 54,253 40,345 12,758 1,150 42,518 29,760 11,145 1,613 Cámara de Compensación de Alto Valor S.A. 6,338 500 5,399 439 6,099 627 4,815 657 5,730 775 4,066 889 Total 962,537 843,284 102,607 16,646 858,762 754,547 91,669 12,546 718,817 630,174 78,574 10,069 c) Restrictions over the ability of associated companies to transfer funds to investors. There are no significant restrictions regarding the capacity of associates to transfer funds, whether in cash dividends, refund of loans, or advance payments to the Bank. d) Activity with respect to investments in other companies during 2017, 2016 and 2015 is as follows: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Opening balance as of January 1, 23,780 20,309 17,914 Acquisition of investments () 3 1,123 302 Sale of investments - - - Participation in income 3,962 3,012 2,588 Dividends received (116) (217) (278) Other equity adjustments (44) (447) (217) Total 27,585 23,780 20,309 () See reference, part a) of this note.

INTANGIBLE ASSETS

INTANGIBLE ASSETS	12 Months Ended
INTANGIBLE ASSETS	Dec. 31, 2017
Intangible Assets
INTANGIBLE ASSETS	NOTE 12 INTANGIBLE ASSETS a) As of December 31, 2017 Years of useful life Average remaining useful life Net opening balance as of January 1, 2015 Gross balance Accumulated amortization Net balance MCh$ MCh$ MCh$ MCh$ Licenses 3 1 1,656 10,932 (9,732) 1,200 Software development 3 2 56,429 314,115 (252,096) 62,019 Total 58,085 325,047 (261,828) 63,219 As of December 31, 2016 Years of useful life Average remaining useful life Net opening balance as of January 1, 2014 Gross balance Accumulated amortization Net balance MCh$ MCh$ MCh$ MCh$ Licenses 3 2 2,060 10,932 (9,276) 1,656 Software development 3 2 49,077 286,781 (230,352) 56,429 Total 51,137 297,713 (239,628) 58,085 b) The changes in the value of intangible assets during the periods ended December 31, 2017 and December 31, 2016 is as follows: b. 1) Gross balances Licenses Software development Total MCh$ MCh$ MCh$ Balances as of January 1, 2017 10,932 286,781 297,713 Acquisitions - 32,624 32,624 Disposals and impairment - (5,290) (5,290) Other - - - Balances as of December 31, 2017 10,932 314,115 325,047 Balances as of January 1, 2016 10,932 259,500 270,432 Acquisitions - 27,281 27,281 Disposals and impairment - - - Other - - - Balances as of December 31, 2016 10,932 286,781 297,713 b. 2) Accumulated amortization Licenses Software development Total MCh$ MCh$ MCh$ Balances as of January 1, 2017 (9,276) (230,352) (239,628) Year’s amortization (456) (21,744) (22,200) Other changes - - - Balances as of December 31, 2017 (9,732) (252,096) (261,828) Balances as of January 1, 2016 (8,872) (210,423) (219,295) Year’s amortization (404) (19,929) (20,333) Other changes - - - Balances as of December 31, 2016 (9,276) (230,352) (239,628) c) The Bank has no restriction on intangible assets as of December 31, 2017 and 2016. Additionally, the intangibles assets have not been pledged as guarantee for fulfillment of financial liabilities. Also, the Bank has no debt related to Intangible assets as of those dates.

PROPERTY, PLANT, AND EQUIPMENT

PROPERTY, PLANT, AND EQUIPMENT	12 Months Ended
PROPERTY, PLANT, AND EQUIPMENT	Dec. 31, 2017
Property, plant and equipment [abstract]
PROPERTY, PLANT, AND EQUIPMENT	NOTE 13 PROPERTY, PLANT, AND EQUIPMENT a) As of December 31, 2017 Net opening balance as of January 1, 2017 Gross balance Accumulated depreciation Net balance MCh$ MCh$ MCh$ MCh$ Land and buildings 169,809 274,079 (114,727) 159,352 Equipment 66,506 193,689 (130,173) 63,516 Ceded under operating leases 4,230 4,888 (667) 4,221 Other 16,834 60,822 (45,364) 15,458 Total 257,379 533,478 (290,931) 242,547 As of December 31, 2016 Net opening balance as of January 1, 2016 Gross balance Accumulated depreciation Net balance MCh$ MCh$ MCh$ MCh$ Land and buildings 158,434 264,016 (94,207) 169,809 Equipment 59,908 168,124 (101,618) 66,506 Ceded under operating leases 4,238 4,888 (658) 4,230 Other 18,079 55,973 (39,139) 16,834 Total 240,659 493,001 (235,622) 257,379 b) The changes in the value of property, plant, and equipment as of December 31, 2017 and 2016 is as follows: b. 1) 2017 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2017 264,016 168,124 4,888 55,973 493,001 Additions 27,592 26,278 - 4,902 58,772 Disposals (17,529) (359) - (53) (17,941) Impairment due to damage - (354) - - (354) Other - - - - 0 Balances as of December 31, 2017 274,079 193,689 4,888 60,822 533,478 2016 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2016 237,449 137,621 4,888 51,482 431,440 Additions 26,567 30,965 - 4,823 62,355 Disposals - (228) - (332) (560) Impairment due to damage - (234) - - (234) Other - - - - - Balances as of December 31, 2016 264,016 168,124 4,888 55,973 493,001 b. 2) 2017 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2017 (94,207) (101,618) (658) (39,139) (235,622) Depreciation charges in the period (20,744) (28,592) (9) (6,277) (55,622) Sales and disposals in the period 224 37 - 52 313 Transfers - - - - 0 Other - - - - 0 Balances as of December 31, 2017 (114,727) (130,173) (667) (45,364) (290,931) 2016 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2016 (79,015) (77,713) (650) (33,403) (190,781) Depreciation charges in the period (15,192) (23,976) (8) (5,849) (45,025) Sales and disposals in the period - 71 - 113 184 Transfers - - - - - Other - - - - - Balances as of December 31, 2016 (94,207) (101,618) (658) (39,139) (235,622) c) Operational leases – lessor As of December 31, 2017 and 2016, the future minimum lease cash inflows under non-cancellable operating leases are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 567 506 Due after 1 year but within 2 years 749 1,029 Due after 2 years but within 3 years 480 502 Due after 3 years but within 4 years 348 473 Due after 4 years but within 5 years 308 344 Due after 5 years 1,792 2,067 Total 4,244 4,921 Operational leases – lessee Certain Bank’s premises and equipment are leased under various operating leases. Future minimum rental payments under non-cancellable leases are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 26,059 26,455 Due after 1 year but within 2 years 21,343 24,903 Due after 2 year but within 3 years 18,091 20,582 Due after 3 years but within 4 years 15,736 17,321 Due after 4 years but within 5 years 12,734 14,569 Due after 5 years 51,502 53,694 Total 145,465 157,524 e) As of December 31, 2017 and 2016, the Bank has no financial leases which cannot be unilaterally rescinded. f) The Bank has no restriction on property, plant and equipment as of December 31, 2017 and 2016. Additionally, the property, plant and equipment have not been provided as guarantees of financial liabilities. The Bank has no debt in connection with property, plant and equipment.

CURRENT AND DEFERRED TAXES

CURRENT AND DEFERRED TAXES	12 Months Ended
CURRENT AND DEFERRED TAXES	Dec. 31, 2017
Current And Deferred Taxes Details 2
CURRENT AND DEFERRED TAXES	NOTE 14 CURRENT AND DEFERRED TAXES a) Current taxes As of December 31, 2017 and 2016, the Bank recognizes taxes payable (recoverable), which is determined based on the currently applicable tax legislation. This amount is recorded net of recoverable taxes, and is shown as follows: As of December 31, 2017 2016 MCh$ MCh$ Summary of current tax liabilities (assets) Current tax (assets) - - Current tax liabilities 6,435 29,294 Total tax payable (recoverable) 6,435 29,294 (Assets) liabilities current taxes detail (net) Income tax, tax rate() 145,112 145,963 Minus: Provisional monthly payments (136,562) (113,700) Credit for training expenses (1,768) (1,972) Land taxes leasing - - Grant credits (968) (1,079) Other 621 82 Total tax payable (recoverable) 6,435 29,294 ()The tax rate is 25.5% for 2017 and 24.0% for 2016. b) Effect on income The effect of tax expense on income for the years ended December 31, 2017 and 2016 is comprised of the following items: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income tax expense Current tax 145,112 145,963 121,775 Credits (debits) for deferred taxes Origination and reversal of temporary differences (6,751) (37,269) (45,672) Valuation provision 5,955 Subtotals 144,316 108,694 76,103 Tax for rejected expenses (Article No.21) 610 336 340 Other 105 1 (48) Net charges for income tax expense 145,031 109,031 76,395 c) Effective tax rate reconciliation The reconciliation between the income tax rate and the effective rate applied in determining tax expenses as of December 31, 2017, 2016 and 2015, is as follows: Fort he year ended December 31, 2017 2016 2015 Tax rate Amount Tax rate Amount Tax rate Amount % MCh$ % MCh$ % MCh$ Tax calculated over profit before tax 25.50 183,671 24.00 140,991 22.50 118,828 Price level restatement for tax purposes (1) (3.03) (21,829) (5.49) (32,256) (5.42) (28,630) Single penalty tax (rejected expenses) 0.08 610 0.06 336 0.06 340 Effect of tax reform changes on deferred tax (2) (2.86) (20,600) 0.01 86 (2.01) (10,600) Real estate taxes 0.00 - 0.00 - (0.73) (3,853) Other 0.44 3,179 (0.02) (126) 0.06 310 Effective rates and expenses for income tax 20.13 145,031 18.56 109,031 14.46 76,395 (1) Price level restatement on tax purpose capital d) Effect of deferred taxes on comprehensive income Below is a summary of the separate effect of deferred tax on other comprehensive income, showing the asset and liability balances, for the years ended December 31, 2017 and 2016: As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Available for sale investments 368 3,266 Cash flow hedges 908 - Total deferred tax assets recognized through other comprehensive income 1,276 3,266 Deferred tax liabilities Available for sale investments (841) (5,036) Cash flow hedges - (549) Total deferred tax liabilities recognized through other comprehensive income (841) (5,585) Net deferred tax balances in equity 435 (2,319) Deferred taxes in equity attributable to equity holders of the Bank 791 (2,097) Deferred tax in equity attributable to non-controlling interests (356) (222) e) Effect of deferred taxes on income As of December 31, 2017 and 2016, the Bank has recorded effects for deferred taxes in the financial statements. As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Interests and adjustments 8,645 9,473 Non-recurring charge-offs 11,651 9,891 Assets received in lieu of payment 1,582 2,999 Exchange rate adjustments 882 - Property, plant and equipment valuation 4,410 4,570 Allowance for loan losses 160,359 163,456 Provision for expenses 73,518 67,073 Leased assets 98,090 71,834 Subsidiaries tax losses 5,277 9,467 Prepaid expenses 151 - Other 5,249 17,571 Total deferred tax assets 369,814 356,334 Deferred tax liabilities Valuation of investments (1,911) (1,802) Depreciation (532) - Valuation proviision (5,955) - Other (432) (299) Total deferred tax liabilities (8,830) (2,101) f) Summary of deferred tax assets and liabilities Below is a summary of the deferred taxes impact on equity and income. As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Recognized through other comprehensive income 1,276 3,266 Recognized through profit or loss 369,815 356,334 Total deferred tax assets 371,091 359,600 Deferred tax liabilities Recognized through other comprehensive income (841) (5,585) Recognized through profit or loss (8,822) (2.101) Total deferred tax liabilities (9,663) (7.686)

OTHER ASSETS

OTHER ASSETS	12 Months Ended
OTHER ASSETS	Dec. 31, 2017
Other Assets
OTHER ASSETS	NOTE 15 OTHER ASSETS Other assets item includes the following: As of December 31, 2017 2016 MCh$ MCh$ Assets for leasing (1) 48,099 44,840 Assets received or awarded in lieu of payment Assets received in lieu of payment 20,904 26,598 Assets awarded at judicial sale 24,800 26,895 Provision on assets received in lieu of payment or awarded (1,440) (7,558) Subtotal 44,264 45,935 Other assets Guarantee deposits (margin accounts) (2) 323,767 396,289 Gold investments 478 446 VAT credit 9,570 8,941 Income tax recoverable 1,381 22,244 Prepaid expenses 116,512 148,288 Assets recovered from leasing for sale 4,235 6,040 Pension plan assets 921 1,637 Accounts and notes receivable 59,574 56,624 Notes receivable through brokerage and simultaneous transactions 68,272 60,632 Other receivable assets 53,500 15,082 Other assets (3) 33,837 40,274 Subtotal 672,047 756,497 Total 764,410 847,272 (1) Assets available to be granted under the financial leasing agreements. (2) Guarantee deposits (margin accounts) correspond collaterals associated with derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result the the Bank deliver or receive collateral. (3) Other assets mainly include settlement of derivatives and other financial transactions.

TIME DEPOSITS AND OTHER TIME LI

TIME DEPOSITS AND OTHER TIME LIABILITIES	12 Months Ended
TIME DEPOSITS AND OTHER TIME LIABILITIES	Dec. 31, 2017
Time Deposits And Other Time Liabilities
TIME DEPOSITS AND OTHER TIME LIABILITIES	NOTE 16 TIME DEPOSITS AND OTHER TIME LIABILITIES As of December 31, 2017 and 2016, the composition of the line item time deposits and other liabilities is as follows: As of December 31, 2017 2016 MCh$ MCh$ Deposits and other demand liabilities Checking accounts 6,272,656 6,144,688 Other deposits and demand accounts 590,221 564,966 Other demand liabilities 905,289 829,661 Total 7,768,166 7,539,315 Time deposits and other time liabilities Time deposits 11,792,466 13,031,319 Time savings account 116,179 116,451 Other time liabilities 5,300 3,939 Total 11,913,945 13,151,709

INTERBANK BORROWINGS

INTERBANK BORROWINGS	12 Months Ended
INTERBANK BORROWINGS	Dec. 31, 2017
Interbank Borrowings
INTERBANK BORROWINGS	NOTE 17 INTERBANK BORROWINGS As of December 31, 2017 and 2016 the line item Interbank borrowings is as follows: As of December 31, 2017 2016 MCh$ MCh$ Loans from financial institutions and the Central Bank of Chile Other obligations with Central Bank of Chile 5 7 Subtotal 5 7 Loans from domestic financial institutions 480 365,436 Loans from foreign financial institutions Sumitomo Mitsui Banking Corporation 259,199 233,060 Wells Fargo Bank N.A. 235,058 113,631 Bank Of America N.A. 228,309 - Standard Chartered Bank 225,966 101,874 Mizuho Bank Ltd. NY. 215,967 - Citibank N.A. 191,471 183,193 The Bank of Nova Scotia 86,419 39,967 The Toronto-Dominion Bank 62,743 - Corporación Andina De Fomento 31,075 - Barclays Bank PLC London 30,886 33,279 HSBC Bank Plc NY 30,875 33,214 The Bank of New York Mellon 30,839 82,594 Hsbc Bank Plc 30,838 - European Investment Bank 12,629 13,980 Banco Santander – Hong Kong 8,341 6,165 Banco Santander Brasil S.A. 5,225 5,175 Bank Austria A.G. 2,317 - Bank of China 823 311 Shanghai Pudong Development 714 205 Bank of Tokyo Mitsubishi 453 430 Keb Hana Bank 396 301 Shinhan Bank 394 354 Thai Military Bank Public Comp 377 425 Hua Nan Commercial Bank Ltd. 349 83 Mizuho Corporate Bank 331 411,753 Banco Santander Central Hispano 312 - Agricultural Bank of China 295 327 Banco de Occidente 282 - Banco Do Brasil S.A. 268 120 Unicredito Italiano 264 - Bank of East Asia, Limited 241 54 Canara Bank 224 91 Hong Kong and Shanghai Banking 222 889 International Commercial Bank 221 - Banque Generale Du Luxembourg 207 138 Kookmin Bank 201 317 Zhejiang Commercial Bank Ltd. 175 - Banca Monte dei Paschi di Siena 162 309 Taiwan Cooperative Bank 159 - Deutsche Bank A.G. 157 - Yapi Ve Kredi Bankasi A.S. 155 73 J.P. Morgan Chase Bank N.A. 154 49 Banco Commerzbank 145 47 Bank of Taiwan 136 183 Industrial And Commercial Bank 119 - Bank Of Nova Scotia 112 - State Bank of India 110 289 Woori Bank 105 153 Bancolombia S.A. 94 31 Bank of Communications 93 393 Cassa Di Risparmio Di Parma E 93 132 China Construcción Bank 90 1,044 Metropolitan Bank Limited 87 26 Banca Delle Marche Spa 76 31 Australia And New Zealand Bank 62 21 Abanca Corporacion Bancaria SA 60 - Casa Di Risparmo De Padova E.R. 56 76 Societe Generale 56 - Hanvit Bank 55 76 Banca Popolare Dell'Emilia Rom 53 26 Banco Bradesco S.A. 50 113 Punjab National Bank 47 - Citic Industrial Bank 39 - Hang Seng Bank Ltd. 39 - Subtotal 1,697,470 1,265,002 As of December 31, 2017 2016 MCh$ MCh$ Loans from foreign financial institutions, continuación Hsbc Bank Usa 38 - First Union National Bank 35 226 Habib Bank Limited 34 105 Banco Caixa Geral. 33 - Banco Internacional S.A. 33 - Banca Commerciale Italiana S.P. 31 - Bank of Montreal 30 201 Kasikornbank Public Company Li. 25 - Citibank N.A. Turkiye Merkez S. 23 158 Liu Chong Hing Bank Limited 21 - Banco Popular Espanol S.A. 19 56 Taiwan Business Bank 19 - Fortis Bank S.A./N.V. Brussels 15 12 Chang Hwa Commercial Bank Ltd. 14 17 Banco De Sabadell S.A. 10 - Bank Of China Guangdong Branch 8 14 Icici Bank Limited 8 25 Banco Popolare Soc Coop 6 5 Bank of America - 213,200 NTT Docomo Ibc - 33,149 Zurcher Kantonal Bank - 20,021 Banque Bruxelles Lambert S.A. - 5,797 Banque Cantonale Vaudoise - 5,714 Denizbank A.S. - 347 Banco Santander – Madrid - 322 Unicredito Italiano - 302 Taipei Bank - 260 ING Bank N.V. - Vienna - 228 Westpac Banking Corporation - 226 BNP Paribas S.A. - 218 Oriental Bank of Commerce - 132 Kotak Mahindra Bank Limited - 129 Caixabank S.A. - 93 Development Bank Of Singapore - 80 Hsbc France (formerly Hsbc Ccf) - 74 Banco General S.A. - 62 Banco De Crédito Del Perú - 58 Hsbc Bank Canada - 47 Finans Bank A.S. - 46 Bangkok Bank Public Company Li. - 42 United Bank of India - 39 Banco Bolivariano C.A. - 38 Banco Bilbao Vizcaya Argentaria - 34 Hsbc Bank Brasil S.A. - Banco - 34 Banca Popolare Di Vicenza Scpa - 31 Bayerische Hypo- Und Vereinsba - 27 Banco Itau - 25 China Merchants Bank - 22 Hsbc Bank Middle East - 21 Banca Lombarda E Piemontese S. - 21 Export-Import Bank Of Thailand - 20 Cassa Di Risparmio In Bologna - 20 Fifth Third Bank - 15 Hdfc Bank Limited - 13 Union Bank of India - 10 Intesa Sanpaolo Spa - 7 Deutsche Bank Sociedad Anonima - 6 Industrial Bank of Korea - 5 Otros - 4,169 Subtotal 1,697,872 1,550,925 Total 1,698,357 1,916,368 a) Obligations with Central Bank of Chile Debts to the Central Bank of Chile include credit lines for renegotiation of loans and other borrowings. These credit lines were provided by the Central Bank of Chile for renegotiation of loans due to the need to refinance debt as a result of the economic recession and crisis of the banking system in the early 1980s. The outstanding amounts owed to the Central Bank of Chile under these credit lines are as follows: As of December 31, 2017 2016 MCh$ MCh$ Totals Line of credit for renegotiation with Central Bank of Chile 5 7 b) Loans from domestic financial institutions These obligations’ maturities are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 480 365,436 Due within 1 and 2 year - - Due within 2 and 3 year - - Due within 3 and 4 year - - Due after 5 years - - Total loans from domestic financial institutions 480 365,436 c) Foreign obligations As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 1,477,318 525,521 Due within 1 and 2 year 185,519 725,315 Due within 2 and 3 year 35,035 186,352 Due within 3 and 4 year - 80,473 Due after 5 years - 33,264 Total loans from foreign financial institutions 1,697,872 1,550,925

ISSUED DEBT INSTRUMENTS AND OTH

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES	12 Months Ended
ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES	Dec. 31, 2017
Issued Debt Instruments And Other Financial Liabilities
ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES	NOTE 18 ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES As of December 31, 2017 and 2016, composition of this item is as follows: As of December 31, 2017 2016 MCh$ MCh$ Other financial liabilities Obligations to public sector 59,470 61,490 Other domestic obligations 175,389 175,028 Foreign obligations 7,171 3,498 Subtotals 242,030 240,016 Issued debt instruments Mortgage finance bonds 34,479 46,251 Senior bonds 6,186,760 6,416,274 Mortgage bond 99,222 104,182 Subordinated bonds 773,192 759,665 Subtotals 7,093,653 7,326,372 Total 7,335,683 7,566,388 Debts classified as current are either demand obligations or will mature in one year or less. All other debts are classified as non-current. The Bank’s debts, both current and non-current, are summarized below: As of December 31, 2017 Current Non-current Total MCh$ MCh$ MCh$ Mortgage finance bonds 8,691 25,788 34,479 Senior bonds 337,166 5,849,594 6,186,760 Mortgage bond 4,541 94,681 99,222 Subordinated bonds 3 773,189 773,192 Issued debt instruments 350,401 6,743,252 7,093,653 Other financial liabilities 212,825 29,205 242,030 Total 563,226 6,772,457 7,335,683 As of December 31, 2016 Current Non-current Total MCh$ MCh$ MCh$ Mortgage finance bonds 11,236 35,015 46,251 Senior bonds 1,135,713 5,280,561 6,416,274 Mortgage bond 4,318 99,864 104,182 Subordinated bonds 4 759,661 759,665 Issued debt instruments 1,151,271 6,175,101 7,326,372 Other financial liabilities 158,488 81,528 240,016 Total 1,309,759 6,256,629 7,566,388 a) Mortgage finance bonds These bonds are used to finance mortgage loans. Their principal amounts are amortized on a quarterly basis. The range of maturities of these bonds is between five and twenty years. Loans are indexed to UF and create a yearly interest yield of 5.41% as of December 31, 2017 (5.53% as of December 31, 2016). As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 8,691 11,236 Due after 1 year but within 2 years 6,744 8,673 Due after 2 year but within 3 years 6,096 6,928 Due after 3 year but within 4 years 5,155 6,246 Due after 4 year but within 5 years 4,101 5,278 Due after 5 years 3,692 7,890 Total mortgage bonds 34,479 46,251 b) Senior bonds The following table shows senior bonds by currency: As of December 31, 2017 2016 MCh$ MCh$ Santander bonds in UF 3,542,006 3,588,373 Santander bonds in USD 1,045,465 909,354 Santander bonds in CHF 268,281 568,549 Santander bonds in Ch$ 1,135,527 1,037,515 Santander bonds in AUD 14,534 60,890 Current bonds in JPY 126,059 179,426 Santander bonds in EUR 54,888 72,167 Total senior bonds 6,186,760 6,416,274 i. Placement of senior bonds: In 2017, the Bank issued bonds for UF 10,000,000; CLP 160,000,000,000; USD 770,000,000; and AUD 30,000,000 detailed as follows: Series Currency Amount Term Issuance rate Series approval date Series amount Maturity date T9 UF 5,000,000 7.0 2.60% 01-02-2016 5,000,000 01-02-2024 T13 UF 5,000,000 9.0 2.75% 01-02-2016 5,000,000 01-02-2026 Total UF 10,000,000 10,000,000 SD CLP 60,000,000,000 5.0 5.50% 01-06-2014 200,000,000,000 01-06-2019 T16 CLP 100,000,000,000 6.0 5.20% 01-02-2016 100,000,000,000 01-08-2021 Total CLP 160,000,000,000 300,000,000,000 DN USD 100,000,000 3.0 Libor-USD 3M+0.80% 20-07-2017 100,000,000 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 21-07-2017 50,000,000 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 24-07-2017 50,000,000 27-07-2020 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 10,000,000 23-11-2021 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 10,000,000 23-11-2021 DN USD 50,000,000 3.0 Libor-USD 3M+0.75% 14-09-2017 50,000,000 15-09-2020 DN USD 500,000,000 3.0 2.50% 12-12-2017 500,000,000 15-12-2020 Total USD 770,000,000 770,000,000 AUD AUD 30,000,000 10.0 3.96% 05-12-2017 30,000,000 12-12-2027 Total AUD 30,000,000 30,000,000 During 2017, the Bank performed a partial repurchase of the following bonds: Date Type Currency Amount 06-03-2017 Senior USD 6,900,000 12-05-2017 Senior UF 1,000,000 16-05-2017 Senior UF 690,000 17-05-2017 Senior UF 15,000 26-05-2017 Senior UF 340,000 01-06-2017 Senior UF 590,000 02-06-2017 Senior UF 300,000 05-06-2017 Senior UF 130,000 19-06-2017 Senior UF 265,000 10-07-2017 Senior UF 770,000 21-07-2017 Senior UF 10,000 28-08-2017 Senior UF 200,000 28-08-2017 Senior UF 200,000 29-08-2017 Senior UF 2,000 29-08-2017 Senior UF 270,000 03-11-2017 Senior UF 14,000 29-11-2017 Senior UF 400,000 06-12-2017 Senior UF 20,000 12-12-2017 Senior CLP 10,990,000,000 In 2016, the Bank issued bonds for UF 62,000,000; CLP 590,000,000,000; JPY 3,000,000,000; USD 215,000,000; EUR 104,000,000; and CHF 125,000,000 detailed as follows: Series Currency Amount Term Issuance rate Series approval date date Series maximum amount Maturity date R1 UF 15,000,000 5.5 2.50% 01-09-2015 15,000,000 01-03-2021 R2 UF 10,000,000 7.5 2.60% 01-09-2015 10,000,000 01-03-2023 R3 UF 10,000,000 10.5 3.00% 01-09-2015 10,000,000 01-03-2026 R5 UF 7,000,000 7.0 2.55% 01-12-2015 7,000,000 01-12-2022 R6 UF 7,000,000 9.0 2.65% 01-12-2015 7,000,000 01-12-2024 P9 UF 3,000,000 10.5 2.60% 01-03-2015 5,000,000 01-09-2025 T2 UF 5,000,000 4.5 2.25% 01-02-2016 5,000,000 01-08-2020 T5 UF 5,000,000 6.0 2.40% 01-02-2016 5,000,000 01-02-2022 Total UF 62,000,000 R4 CLP 100,000,000,000 5.5 5.50% 01-09-2015 100,000,000,000 01-03-2021 P4 CLP 50,000,000,000 5.0 4.80% 01-03-2015 150,000,000,000 01-03-2020 SD CLP 140,000,000,000 5.0 5.50% 01-06-2014 200,000,000,000 01-06-2019 SC CLP 200,000,000,000 10.0 5.95% 01-06-2014 200,000,000,000 01-06-2024 P3 CLP 50,000,000,000 7.0 5.50% 01-01-2015 50,000,000,000 01-01-2022 P1 CLP 50,000,000,000 10.0 5.80% 01-01-2015 50,000,000,000 01-01-2025 Total CLP 590,000,000,000 JPY JPY 3,000,000,000 5.0 0.115% 22-06-2016 3,000,000,000 29-06-2021 Total JPY 3,000,000,000 DN USD 10,000,000 5.0 Libor-USD 3M+1.05% 02-06-2016 10,000,000 09-06-2021 DN USD 10,000,000 5.0 Libor-USD 3M+1.22% 08-06-2016 10,000,000 17-06-2021 DN USD 10,000,000 5.0 Libor-USD 3M+1.20% 01-08-2016 10,000,000 16-08-2021 DN USD 185,000,000 5.0 Libor-USD 3M+1.20% 10-11-2016 185,000,000 28-11-2021 Total USD 215,000,000 EUR EUR 54,000,000 12.0 1.307% 05-08-2016 54,000,000 17-08-2028 EUR EUR 20,000,000 8.0 0.80% 04-08-2016 20,000,000 19-08-2024 EUR EUR 30,000,000 3.0 0.25% 09-12-2016 30,000,000 20-12-2019 Total EUR 104,000,000 CHF CHF 125,000,000 8.5 0.35% 14-11-2016 125,000,000 30-05-2025 Total CHF 125,000,000 During 2016, the Bank performed a partial repurchase of the following bond: Date Type Currency Amount 13-01-2016 Senior USD 600,000 27-01-2016 Senior USD 960,000 08-03-2016 Senior USD 418,853,000 08-03-2016 Senior USD 140,104,000 10-05-2016 Senior USD 10,000,000 29-11-2016 Senior USD 6,895,000 ii. The maturities of senior bonds are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 337,166 1,135,713 Due after 1 year but within 2 years 866,936 321,509 Due after 2 year but within 3 years 832,978 816,919 Due after 3 year but within 4 years 1,177,081 663,289 Due after 4 year but within 5 years 902,647 754,768 Due after 5 years 2,069,952 2,724,076 Total senior bonds 6,186,760 6,416,274 c) Mortgage bonds Detail of mortgage bonds per currency is as follows: As of December 31, 2017 2016 MCh$ MCh$ Mortgage bonds in UF 99,222 104,182 Total mortgage bonds 99,222 104,182 i. Allocation of mortgage bonds During 2017 and 2016, the Bank has not placed any mortgage bonds. ii. The maturities of Mortgage bonds are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 4,541 4,318 Due after 1 year but within 2 years 7,291 6,932 Due after 2 year but within 3 years 7,526 7,156 Due after 3 year but within 4 years 7,769 7,386 Due after 4 year but within 5 years 8,019 7,626 Due after 5 years 64,076 70,764 Total Mortgage bonds 99,222 104,182 d) Subordinated bonds Detail of the subordinated bonds per currency is as follows: As of December 31, 2017 2016 MCh$ MCh$ Subordinated bonds denominated in CLP 3 4 Subordinated bonds denominated in UF 773,189 759,661 Total subordinated bonds 773,192 759,665 i. Allocation of subordinated bonds During 2017 and 2016, the Bank has not placed any subordinated bonds. The maturities of subordinated bonds, are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 3 4 Due after 1 year but within 2 years - - Due after 2 year but within 3 years - - Due after 3 year but within 4 years - - Due after 4 year but within 5 years - - Due after 5 years 773,189 759,661 Total subordinated bonds 773,192 759,665 e) Other financial liabilities The composition of other financial obligations, by maturity, is detailed below: As of December 31, 2017 2016 MCh$ MCh$ Non-current portion: Due after 1 year but within 2 years 23,401 33,777 Due after 2 year but within 3 years 4,181 24,863 Due after 3 year but within 4 years 194 5,794 Due after 4 year but within 5 years 210 1,973 Due after 5 years 1,219 15,121 Non-current portion subtotal 29,205 81,528 Current portion: Amounts due to credit card operators 173,271 151,620 Acceptance of letters of credit 2,780 2,069 Other long-term financial obligations, short-term portion 36,774 4,799 Current portion subtotal 212,825 158,488 Total other financial liabilities 242,030 240,016

MATURITY OF FINANCIAL ASSETS AN

MATURITY OF FINANCIAL ASSETS AND LIABILITIES	12 Months Ended
MATURITY OF FINANCIAL ASSETS AND LIABILITIES	Dec. 31, 2017
Maturity Of Financial Assets And Liabilities
MATURITY OF FINANCIAL ASSETS AND LIABILITIES	NOTE 19 MATURITY OF FINANCIAL ASSETS AND LIABILITIES As of December 31, 2017 and 2016, the detail of the maturities of assets and liabilities is as follows: As of December 31, 2017 Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial assets Cash and deposits in banks 1,452,922 - - - 1,452,922 - - - - 1,452,922 Cash items in process of collection 668,145 - - - 668,145 - - - - 668,145 Trading investments - 72,983 4,024 68,277 145,284 110,824 90,507 139,121 340,452 485,736 Investments under resale agreements - - - - - - - - - - Financial derivative contracts - 135,780 198,876 410,415 745,071 385,428 371,090 737,058 1,493,576 2,238,647 Interbank loans () - 6,064 152,911 3,710 162,685 - - - - 162,685 Loans and accounts receivables from customers () 769,823 2,206,734 2,288,372 4,348,975 9,613,904 5,187,501 2,938,326 9,823,498 17,949,325 27,563,229 Available for sale investments - 58,850 11,788 102,600 173,238 556,289 975,372 869,647 2,401,308 2,574,546 Guarantee deposits (margin accounts) 323,767 - - - 323,767 - - - - 323,767 Total financial assets 3,214,657 2,480,411 2,655,971 4,933,977 13,285,016 6,240,042 4,375,295 11,569,324 22,184,661 35,469,677 Financial liabilities Deposits and other demand liabilities 7,768,166 - - - 7,768,166 - - - - 7,768,166 Cash items in process of being cleared 486,726 - - - 486,726 - - - - 486,726 Obligations under repurchase agreements - 268,061 - - 268,061 - - - - 268,061 Time deposits and other time liabilities 121,479 5,120,171 4,201,271 2,299,018 11,741,939 106,833 2,811 62,362 172,006 11,913,945 Financial derivative contracts - 144,410 196,444 356,288 697,142 378,582 358,358 705,406 1,442,346 2,139,488 Interbank borrowings 4,130 46,013 397,419 1,030,241 1,477,803 220,554 - - 220,554 1,698,357 Issued debt instruments - 21,043 55,119 274,239 350,401 1,727,571 2,104,771 2,910,910 6,743,252 7,093,653 Other financial liabilities 177,663 701 2,583 31,879 212,826 27,581 404 1,219 29,204 242,030 Guarantees received (margin accounts) 408,313 - - - 408,313 - - - - 408,313 Total financial liabilities 8,966,477 5,600,399 4,852,836 3,991,665 23,411,377 2,461,121 2,466,344 3,679,897 8,607,362 32,018,739 () Interbank loans are presented on a gross basis. The amount of allowance is Ch$472 million. (*) Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million. As of December 31, 2016 Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial assets Cash and deposits in banks 2,279,389 - - - 2,279,389 - - - - 2,279,389 Cash items in process of collection 495,283 - - - 495,283 - - - - 495,283 Trading investments - 52,443 13,252 118,845 184,540 75,378 106,808 30,261 212,447 396,987 Investments under resale agreements - 6,736 - - 6,736 - - - - 6,736 Financial derivative contracts - 82,243 120,653 292,801 495,697 531,094 357,833 1,116,158 2,005,085 2,500,782 Interbank loans () - 12,859 135,756 124,143 272,758 44 - 5 49 272,807 Loans and accounts receivables from customers (*) 717,306 2,393,216 2,108,001 4,488,993 9,707,516 4,937,271 2,909,140 9,379,697 17,226,108 26,933,624 Available for sale investments - 1,581,682 250,222 314,842 2,146,746 37,974 379,976 824,210 1,242,160 3,388,906 Guarantee deposits (margin accounts) 396,289 - - - 396,289 - - - - 396,289 Total financial assets 3,888,267 4,129,179 2,627,884 5,339,624 15,984,954 5,581,761 3,753,757 11,350,331 20,685,849 36,670,803 Financial liabilities Deposits and other demand liabilities 7,539,315 - - - 7,539,315 - - - - 7,539,315 Cash items in process of being cleared 288,473 - - - 288,473 - - - - 288,473 Obligations under repurchase agreements - 212,437 - - 212,437 - - - - 212,437 Time deposits and other time liabilities 121,527 6,105,767 4,193,906 2,537,299 12,958,499 118,101 13,913 61,196 193,210 13,151,709 Financial derivative contracts - 92,335 122,565 263,893 478,793 494,539 346,948 971,881 1,813,368 2,292,161 Interbank borrowings 4,557 373,423 115,769 1,154,063 1,647,812 233,542 35,014 - 268,556 1,916,368 Issued debt instruments - 43,141 185,425 922,705 1,151,271 1,168,117 1,444,593 3,562,391 6,175,101 7,326,372 Other financial liabilities 153,049 1,461 1,161 2,817 158,488 58,641 7,766 15,121 81,528 240,016 Guarantees received (margin accounts) 480,926 - - - 480,926 - - - - 480,926 Total financial liabilities 8,587,847 6,828,564 4,618,826 4,880,777 24,916,014 2,072,940 1,848,234 4,610,589 8,531,763 33,447,777 () Interbank loans are presented on a gross basis. The amount of allowance is Ch$4,135 million. (**) Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 429,442 million, Mortgage loans Ch$ 57,009 million, and Consumer loans Ch$ 300,019 million.

PROVISIONS

PROVISIONS	12 Months Ended
PROVISIONS	Dec. 31, 2017
Provisions [abstract]
PROVISIONS	NOTE 20 PROVISIONS a) As of December 31, 2017 and 2016, the composition is as follows: As of December 31, 2017 2016 MCh$ MCh$ Provisions for personnel salaries and expenses 97,576 72,592 Provisions for mandatory dividends 168,840 142,815 Provisions for contingent loan risk 10,079 11,399 Provisions for contingencies associated with administrative claims and leasing contracts 27,303 65,404 Total 303,798 292,210 b) Below is the activity regarding provisions during the years ended December 31, 2017 and 2016. Personnel salaries and expenses Mandatory Dividend Contingent loan Contingencies Total MCh$ MCh$ MCh$ MCh$ MM$ Balances as of January 1, 2017 72,592 142,815 11,399 65,404 292,210 Provisions established 106,687 168,840 7,341 8,645 291,513 Application of provisions (81,703) (142,815) - (389) (224,907) Provisions released - - (8,661) (46,357) (55,018) Reclassifications - - - - - Other - - - - - Balances as of December 31, 2017 97,576 168,840 10,079 27,303 303,798 Balances as of January 1, 2016 64,861 134,539 10,750 64,848 274,998 Provisions established 80,298 142,815 9,789 85,492 318,394 Application of provisions (72,567) (134,539) - (135) (207,241) Provisions released - - (9,140) (84,801) (93,941) Reclassifications - - - - - Other - - - - - Balances as of December 31, 2016 72,592 142,815 11,399 65,404 292,210 c) Provisions for personnel salaries and expenses: As of December 31, 2017 2016 MCh$ MCh$ Provision for seniority compensation 17,874 10,376 Provision for stock-based personnel benefits - - Provision for performance bonds 53,947 38,510 Provision for vacations 23,039 21,800 Provision for other personnel benefits 2,716 1,906 Total 97,576 72,592

OTHER LIABILITIES

OTHER LIABILITIES	12 Months Ended
OTHER LIABILITIES	Dec. 31, 2017
Other Liabilities
OTHER LIABILITIES	NOTE 21 OTHER LIABILITIES The other liabilities line item is as follows: As of December 31, 2017 2016 MCh$ MCh$ Accounts and notes payable 196,965 154,159 Unearned income 601 509 Guarantees received (margin accounts) (1) 408,313 480,926 Notes payable through brokerage and simultaneous transactions 17,799 27,745 Other payable obligations (2) 58,921 80,100 Withheld VAT 1,887 1,964 Other liabilities (3) 60,877 50,382 Total 745,363 795,785 (1) Guarantee deposits (margin accounts) collaterals associated to derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result the the Bank deliver or receive collateral. (2) Other payable obligations mainly relates to settlement of derivatives and other financial transactions derived from the operation of the Bank. (3) Other liabilities: mainly include reimbursement of insurance commissions.

CONTINGENCIES AND COMMITMENTS

CONTINGENCIES AND COMMITMENTS	12 Months Ended
CONTINGENCIES AND COMMITMENTS	Dec. 31, 2017
Contingencies And Commitments
CONTINGENCIES AND COMMITMENTS	NOTE 22 CONTINGENCIES AND COMMITMENTS a) Lawsuits and legal procedures As of the issuance date of these financial statements, the Bank and its affiliates were subject to certain legal actions in the normal course of their business. As of December 31, 2017, the Banks and its subsidiaries have provisions for this item of Ch$1,214.2 million and Ch$0 million, respectively (Ch$1,194 million and Ch$48 million as of December 31, 2016) which is included in “Provisions” in the Consolidated Statement of Financial Position as provisions for contingencies. b) Contingent loans The following table shows the Bank’s contractual obligations to issue loans: As of December 31, 2017 2016 MCh$ MCh$ Letters of credit issued 201,699 158,800 Foreign letters of credit confirmed 75,499 57,686 Guarantees 1,823,793 1,752,610 Personal guarantees 81,577 125,050 Subtotal 2,182,568 2,094,146 Available on demand credit lines 8,135,489 7,548,820 Other irrevocable credit commitments 260,691 260,266 Total 10,578,748 9,903,232 c) Held The Bank holds securities in the normal course of its business as follows: As of December 31, 2017 2016 MCh$ MCh$ Third party operations Collections 175,200 163,303 Assets from third parties managed by the Bank and its affiliates 1,660,804 1,586,405 Subtotal 1,836,004 1,749,708 Custody of securities Securities held in custody 383,002 390,155 Securities held in custody deposited in other entity 760,083 687,610 Issued securities held in custody 22,046,701 18,768,572 Subtotal 23,189,786 19,846,337 Total 25,025,790 21,596,045 During 2017, the Bank classified the portfolios managed by private banking in “Assets from third parties managed by the Bank and its affiliates” (memo account). At the end of December 2017, the balance for this was Ch$ 1,660,768 million (Ch$ 1,586,370 million at December 31, 2016). d) Guarantees Banco Santander Chile has comprehensive officer fidelity insurance policy, No. 4505199, with the Chilena Consolidada de Seguros insurance company, for USD 50,000,000 which jointly covers both the Bank and its affiliates for the period from July 1, 2017 to June 30, 2018. e) Contingent loans and liabilities To satisfy its clients’ needs, the Bank took on several contingent loans and liabilities that are not be recognized in the Consolidated Financial Statement of Financial Position; these contain loan risks and they are, therefore, part of the Bank`s global risk.

EQUITY

EQUITY	12 Months Ended
EQUITY	Dec. 31, 2017
EQUITY
EQUITY	NOTE 23 EQUITY a) Capital As of December 31, 2017 and 2016 the Bank had 188,446,126,794 shares outstanding, all of which are subscribed for and paid in full, amounting to Ch$891,303 million. All shares have the same rights, and have no preferences or restrictions. The activity with respect to shares during 2017, 2016 and 2015 was as follows: SHARES As of December 31, 2017 2016 2015 Issued as of January 1 188,446,126,794 188,446,126,794 188,446,126,794 Issuance of paid shares - - - Issuance of outstanding shares - - - Stock options exercised - - - Issued as of December 31, 188,446,126,794 188,446,126,794 188,446,126,794 As of December 31, 2017, 2016 and 2015 the Bank does not have any of its own shares in treasury, nor do any of the consolidated companies. As of December 31, 2017 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon - 31,238,866,071 31,238,866,071 16.58 Banks on behalf of third parties 13,892,691,988 - 13,892,691,988 7.37 Pension funds (AFP) on behalf of third parties 6,896,552,755 - 6,896,552,755 3.66 Stock brokers on behalf of third parties 3,762,310,365 - 3,762,310,365 2.00 Other minority holders 6,062,704,347 - 6,062,704,347 3.21 Total 157,207,260,723 31,238,866,071 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. As of December 31, 2016 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon (1) - 34,800,933,671 34,800,933,671 18.47 Banks on behalf of third parties 12,257,100,312 - 12,257,100,312 6.50 Pension funds (AFP) on behalf of third parties 6,990,857,997 - 6,990,857,997 3.71 Stock brokers on behalf of third parties 3,071,882,351 - 3,071,882,351 1.63 Other minority holders 4,732,351,195 - 4,732,351,195 2.51 Total 153,645,193,123 34,800,933,671 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. As of December 31, 2015 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon (1) - 32,516,063,671 32,516,063,671 17.25 Banks on behalf of third parties 11,878,070,560 - 11,878,070,560 6.30 Pension funds (AFP) on behalf of third parties 8,887,560,424 - 8,887,560,424 4.72 Stock brokers on behalf of third parties 3,460,285,074 - 3,460,285,074 1.84 Other minority holders 5,111,145,797 - 5,111,145,797 2.71 Total 155,930,063,123 32,516,063,671 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. (1) As of August 4, 2015, Banco Santander Chile signed a contract which appoints The Bank of New York Mellon as the commercial bank authorized to trade ADRs, replacing J.P.Morgan Chase Bank NA. b) Reserves In April 2017, due to the Shareholders’ Meeting, the Bank agreed to capitalized 30% of retained earnings from 2016 as reserves; which equals Ch$ 141,706 million (Ch$ 112,219 million in 2016). c) Dividends The distribution of dividends is detailed in the Consolidated Statement of Changes in Equity. d) As of December 31, 2017, 2016 and 2015 the basic and diluted earnings per share were as follows: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ a) Basic earnings per share Total attributable to the equity holders of the Bank 562,801 476,067 448,466 Weighted average number of outstanding shares 188,446,126,794 188,446,126,794 188,446,126,794 Basic earnings per share (in Ch$) 2,987 2,526 2,380 b) Diluted earnings per share Total attributable to the equity holders of the Bank 562,801 476,067 448,466 Weighted average number of outstanding shares 188,446,126,794 188,446,126,794 188,446,126,794 Adjusted number of shares 188,446,126,794 188,446,126,794 188,446,126,794 Diluted earnings per share (in Ch$) 2,987 2,526 2,380 As of December 31, 2017, 2016 and 2015 the Bank does not own instruments with dilutive effects. e) Other comprehensive income from available for sale investments and cash flow hedges: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Available for sale investments As of January 1, 7,375 (7,093) 21,684 Gain (losses) on the re-measurement of available for sale investments, before tax (10,384) 2,267 (51,178) Recycling from other comprehensive income to income for the year 4,864 12,201 22,401 Subtotals (5,520) 14,468 (28,777) Total 1,855 7,375 (7,093) Cash flow hedges As of January 1, 2,288 8,626 10,725 Gains (losses) on the re-measurement of cash flow hedges, before tax (5,850) (6,261) (2,105) Recycling adjustments on cash flow hedges, before tax - (77) 6 Amounts removed from equity and included in carrying amount of non-financial asset (liability) which acquisition or incurrence was hedged as a highly probable transaction - - - Subtotals (5,850) (6,338) (2,099) Total (3,562) 2,288 8,626 Other comprehensive income, before taxes (1,707) 9,663 1,533 Income tax related to other comprehensive income components Income tax relating to available for sale investments (473) (1,770) 1,596 Income tax relating to cash flow hedges 908 (549) (1,940) Total 435 (2,319) (344) Other comprehensive income, net of tax (1,272) 7,344 1,189 Attributable to: Equity holders of the Bank (2,312) 6,640 1,288 Non-controlling interest 1,040 704 (99) The Bank expects that the results included in "Other comprehensive income" will be reclassified to profit or loss when the specific conditions have been met.

NON-CONTROLLING INTEREST

NON-CONTROLLING INTEREST	12 Months Ended
NON-CONTROLLING INTEREST	Dec. 31, 2017
Non-controlling Interest
NON-CONTROLLING INTEREST	NOTE 24 NON-CONTROLLING INTEREST a) The non-controlling interest included in the equity and the income from the subsidiaries is summarized as follows: Other comprehensive income As of December 31, 2017 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 389 132 - - - 132 Santander S.A. Sociedad Securitizadora 0.36 1 - - - - - Santander Corredores de Bolsa Limitada 49.00 21,000 702 470 (134) 336 1,038 Santander Corredora de Seguros Limitada 0.25 167 4 - - - 4 Subtotal 21,557 838 470 (134) 336 1,174 Entities controlled through other considerations: Bansa Santander S.A. (1) 100.00 17,401 10,869 - - - 10,869 Santander Gestión de Recaudación y 100.00 2,925 741 - - - 741 Subtotal 20,326 11,610 - - - 11,610 Total 41,883 12,448 470 (134) 336 12,784 (1) In September 2017, Bansa Santander S.A. celebrated a legal cession of rights,which generated an income of Ch$20,663 million before tax (Ch$15,197 million net of taxes) Other comprehensive income As of December 31, 2016 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 492 116 - - - 116 Santander S.A. Sociedad Securitizadora 0.36 2 - - - - - Santander Corredores de Bolsa Limitada (1) 49.41 19,966 1,130 1,054 (251) 803 1,933 Santander Corredora de Seguros Limitada 0.25 164 7 - - - 7 Subtotal 20,624 1,253 1,054 (251) 803 2.056 Entities controlled through other considerations: Bansa Santander S.A. 100.00 6,533 529 - - - 529 Santander Gestión de Recaudación y Cobranzas Limitada 100.00 2,184 583 - - - 583 Subtotal 8,717 1,112 - - - 1,112 Total 29,341 2,365 1,054 (251) 803 3,168 (1) Ex Santander S.A. Corredores de Bolsa, See Note1. Other comprehensive income As of December 31, 2015 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 652 98 (4) 1 (3) 95 Santander S.A. Sociedad Securitizadora 0.36 2 - - - - - Santander S.A. Corredores de Bolsa Ltda 49.41 21,765 816 (128) 29 (99) 717 Santander Corredora de Seguros Limitada 0.25 156 (5) - - - (5) Subtotals 22,575 909 (132) 30 (102) 807 Entities controlled through other considerations: Bansa Santander S.A. 100.00 6,004 334 - - - 334 Santander Gestión de Recaudación y Cobranzas Limitada (1) 100.00 1,602 564 - - - 564 Multinegocios S.A. 100.00 - 310 - - - 310 Servicios Administrativos y Financieros Limitada 100.00 - 550 - - - 550 Multiservicios de Negocios Limitada 100.00 - 596 - - - 596 Subtotals 7,606 2.354 - - - 2,354 Total 30,181 3.263 (132) 30 (102) 3,161 (1) b) The overview of the financial information of the subsidiaries included in the consolidation of the Bank that possess non-controlling interests is as follows, which does not include consolidation or conforming accounting policy adjustments: As of December 31, 2017 2016 2015 Net income Net income Net Assets Liabilities Capital Assets Liabilities Capital Assets Liabilities Capital income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Santander Corredora de Seguros Limitada 76,177 9,803 64,937 1,437 75,000 10,065 62,276 2,659 72,860 10,588 60,765 1,507 Santander Corredores de Bolsa Limitada 88,711 45,855 41,424 1,432 86,473 45,724 38,356 2,393 71,118 26,763 42,618 1,737 Santander Agente de Valores Limitada 44,910 4,732 26,569 13,609 54,486 3,666 38,851 11,969 131,305 64,049 57,554 9,702 Santander S.A. Sociedad Securitizadora 400 50 432 (82) 509 77 512 (80) 566 53 561 (48) Santander Gestión de Recaudación y Cobranzas Ltda. 10,826 7,901 2,184 741 8,547 6,363 1,602 582 6,194 4,592 1,038 564 Bansa Santander S.A. 25,535 8,134 6,533 10,868 31,301 24,768 6,004 529 31,631 25,627 5,670 334 Total 246,559 76,475 142,079 28,005 256,316 90,663 147,601 18,052 313,674 131,672 168,206 13,796

INTEREST INCOME

INTEREST INCOME	12 Months Ended
INTEREST INCOME	Dec. 31, 2017
Interest Income
INTEREST INCOME	NOTE 25 INTEREST INCOME This item refers to interest earned in the period from the financial assets whose return, whether implicitly or explicitly, is determined by applying the effective interest rate method, regardless of the value at fair value, as well as the effect of hedge accounting (see c). a) For the years ended December 31, 2017, 2016 and 2015 the income from interest, was attributable to the following items: For the years ended December 31, 2017 2016 2015 Interest Inflation adjustments Prepaid fees Total Interest Inflation adjustments Prepaid fees Total Interest Inflation adjustments Prepaid fees Total Items MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Resale agreements 939 - - 939 1,488 - - 1,488 1,075 - - 1,075 Interbank loans 969 - - 969 295 - - 295 375 - - 375 Commercial loans 752,013 85,389 10,525 847,927 742,432 130,904 7,659 880,995 687,464 168,752 8,494 864,710 Mortgage loans 320,041 149,303 414 469,758 304,116 228,081 7,012 539,209 259,941 286,437 23,191 569,569 Consumer loans 612,932 363 4,738 618,033 604,152 660 4,318 609,130 586,385 3,418 3,706 593,509 Investment instruments 74,000 5,797 - 79,797 75,808 2,916 - 78,724 60,004 7,616 - 67,620 Other interest income 12,172 1,538 - 13,710 11,136 2,445 - 13,581 10,111 5,831 - 15,942 Interest income not including income from hedge accounting 1,773,066 242,390 15,677 2,031,133 1,739,427 365,006 18,989 2,123,422 1,605,355 472,054 35,391 2,112,800 b) For the years ended December 31, 2017, 2016 and 2015, the expense from interest expense, excluding expense from hedge accounting, is as follows: For the years ended December 31, 2017 2016 2015 Interest Inflation adjustments Total Interest Inflation adjustments Total Interest Inflation adjustments Total Items MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Demand deposits (13,851) (695) (14,546) (16,003) (1,043) (17,046) (13,875) (1,343) (15,218) Repurchase agreements (6,514) - (6,514) (2,822) - (2,822) (6,893) - (6,893) Time deposits and liabilities (341,821) (20,509) (362,330) (399,720) (38,946) (438,666) (346,174) (47,370) (393,544) Interbank loans (26,805) - (26,805) (19,803) - (19,803) (14,998) (2) (15,000) Issued debt instruments (220,027) (76,170) (296,197) (197,973) (105,452) (303,425) (183,561) (113,029) (296,590) Other financial liabilities (2,946) (303) (3,249) (3,008) (781) (3,789) (3,070) (1,180) (4,250) Other interest expense (5,236) (4,973) (10,209) (5,211) (8,874) (14,085) (3,456) (14,776) (18,232) Interest expense not including expenses from hedge accounting (617,200) (102,650) (719,850) (644,540) (155,096) (799,636) (572,027) (177,700) (749,727) c) For the years ended December 31, 2017 2016 2015 Items MCh$ MCh$ MCh$ Interest income not including income from hedge accounting 2,031,133 2,123,422 2,112,800 Interest expense not including expense from hedge accounting (719,850) (799,636) (749,727) Net Interest income (expense) from hedge accounting 1,311,283 1,323,786 1,363,073 Hedge accounting (net) 15,408 (42,420) (107,867) Total net interest income 1,326,691 1,281,366 1,255,206

FEES AND COMMISSIONS

FEES AND COMMISSIONS	12 Months Ended
FEES AND COMMISSIONS	Dec. 31, 2017
Fees And Commissions
FEES AND COMMISSIONS	NOTE 26 FEES AND COMMISSIONS This item includes the amount of fees earned and paid during the year, except for those which are an integral part of the financial instrument’s effective interest rate: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Fee and commission income Fees and commissions for lines of credits and overdrafts 7,413 5,754 6,597 Fees and commissions for guarantees and letters of credit 33,882 35,911 35,276 Fees and commissions for card services 201,791 195,566 175,262 Fees and commissions for management of accounts 31,901 31,540 30,291 Fees and commissions for collections and payments 44,312 31,376 30,399 Fees and commissions for intermediation and management of securities 10,090 9,304 10,000 Insurance brokerage fees 36,430 40,882 39,252 Office banking 15,669 14,145 15,224 Fees for other services rendered 43,123 38,038 35,978 Other fees earned 30,947 28,668 24,621 Total 455,558 431,184 402,900 For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Fee and commission expense Compensation for card operation (149,809) (143,509) (129,196) Fees and commissions for securities transactions (858) (946) (1,315) Office banking (15,283) (14,671) (15,320) Other fees (10,545) (17,634) (19,442) Total (176,495) (176,760) (165,273) Net fees and commissions income 279,063 254,424 237,627 The fees earned in transactions with letters of credit are presented in the Consolidated Statement of Income in the line item “Interest income”.

NET INCOME (EXPENSE) FROM FINAN

NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS	12 Months Ended
NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS	Dec. 31, 2017
Net Income Expense From Financial Operations
NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS	NOTE 27 NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS For the years ended December 31, 2017, 2016 and 2015, the detail of income (expense) from financial operations is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income (expense) from financial operations Trading derivatives (18,974) (395,209) (503,981) Trading investments 10,008 18,229 21,505 Sale of loans and accounts receivables from customers Current portfolio 3,020 1,469 921 Charged-off portfolio 3,020 2,720 (58) Available for sale investments 8,956 14,598 23,655 Repurchase of issued bonds (742) (8,630) (14) Other income (expense) from financial operations (2,492) (211) 75 Total income (expense) 2,796 (367,034) (457,897)

NET FOREIGN EXCHANGE GAIN (LOSS

NET FOREIGN EXCHANGE GAIN (LOSS)	12 Months Ended
NET FOREIGN EXCHANGE GAIN (LOSS)	Dec. 31, 2017
Net Foreign Exchange Gain Loss
NET FOREIGN EXCHANGE GAIN (LOSS)	NOTE 28 NET FOREIGN EXCHANGE GAIN (LOSS) Net foreign exchange income 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 a foreign currency at the time of their sale. For the years ended December 31, 2017, 2016 and 2015 net foreign exchange income is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Net foreign exchange gain (loss) Net profit (loss) from currency exchange differences 113,115 116,117 (197,875) Hedging derivatives 22,933 399,875 777,254 Income from assets indexed to foreign currency (9,190) (8,745) 25,421 Income from liabilities indexed to foreign currency 98 145 (1,404) Total 126,956 507,392 603,396

PROVISIONS FOR LOAN LOSSES

PROVISIONS FOR LOAN LOSSES	12 Months Ended
PROVISIONS FOR LOAN LOSSES	Dec. 31, 2017
Provisions For Loan Losses
PROVISIONS FOR LOAN LOSSES	NOTE 29 PROVISIONS FOR LOAN LOSSES a) For the years ended December 31, 2017, 2016 and 2015 activity for provisions for loan losses is as follows: Loans and accounts receivable from customers Total For the year ended December 31, 2017 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (15,699) - - - - - (15,699) Provisions established (307) (64,658) (148,681) (43,621) (252,038) (3,117) (4,224) (516,646) Total provisions and charge-offs (307) (80,357) (148,681) (43,621) (252,038) (3,117) (4,224) (532,345) Provisions released 3,970 55,925 20,491 11,427 46,089 7,001 1,660 146,563 Recovery of loans previously charged off - 11,114 21,499 10,942 39,972 - - 83,527 Net charge to income 3,663 (13,318) (106,691) (21,252) (165,977) 3,884 (2,564) (302,255) Loans and accounts receivable from customers Total For the year ended December 31, 2016 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (11,222) - - - - - (11,222) Provisions established (3,052) (61,002) (133,855) (50,892) (280,544) (11,986) (2,909) (544,240) Total provisions and charge-offs (3,052) (72,224) (133,855) (50,892) (280,544) (11,986) (2,909) (555,462) Provisions released 83 43,183 14,432 34,246 30,790 6,963 5,384 135,081 Recovery of loans previously charged off - 11,142 16,043 10,041 41,072 - - 78,298 Net charge to income (2,969) (17,899) (103,380) (6,605) (208,682) (5,023) 2,475 (342,083) Loans and accounts receivable from customers Total For the year ended December 31, 2015 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (12,955) - - - - - (12,955) Provisions established (1,357) (124,968) (136,778) (34,373) (248,937) (2,808) (2,601) (551,822) Total provisions and charge-offs (1,357) (137,923) (136,778) (34,373) (248,937) (2,808) (2,601) (564.777) Provisions released 192 46,614 17,885 7,205 18,126 5,042 2,296 97,360 Recovery of loans previously charged off - 8.978 17,054 6,543 35,565 - - 68,140 Net charge to income (1,165) (82,331) (101,839) (20,625) (195,246) 2,234 (305) (399.277) b) For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Charge-off of loans 51,978 47,605 50,656 Provision applied (36,279) (36,383) (37,701) Net charge offs of individually significant loans 15,699 11,222 12,955

PERSONNEL SALARIES AND EXPENSES

PERSONNEL SALARIES AND EXPENSES	12 Months Ended
PERSONNEL SALARIES AND EXPENSES	Dec. 31, 2017
Personnel Salaries And Expenses
PERSONNEL SALARIES AND EXPENSES	NOTE 30 PERSONNEL SALARIES AND EXPENSES For the years ended December 31, 2017, 2016 and 2015, the composition of personnel salaries and expenses is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Personnel compensation 250,962 249,703 233,707 Bonuses or gratifications 75,181 77,649 78,260 Stock-based benefits 2,752 331 66 Seniority compensation 26,120 26,263 34,012 Pension plans 2,039 (150) 431 Training expenses 2,867 2,835 3,186 Day care and kindergarten 2,505 3,072 2,992 Health funds 4,748 4,777 4,474 Welfare funds 896 806 754 Other personnel expenses 28,897 29,847 29,181 Total 396,967 395,133 387,063

ADMINISTRATIVE EXPENSES

ADMINISTRATIVE EXPENSES	12 Months Ended
ADMINISTRATIVE EXPENSES	Dec. 31, 2017
Administrative Expenses
ADMINISTRATIVE EXPENSES	NOTE 31 ADMINISTRATIVE EXPENSES For the years ended December 31, 2017, 2016 and 2015, the composition of the item is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ General administrative expenses 139,418 138,974 127,826 Maintenance and repair of property, plant and equipment 21,359 19,901 20,002 Office lease 26,136 28,098 27,472 Equipment lease 96 280 134 Insurance payments 3,354 3,842 3,656 Office supplies 6,862 5,747 6,232 IT and communication expenses 39,103 37,351 28,420 Heating, and other utilities 5,468 4,863 4,764 Security and valuables transport services 12,181 14,793 15,393 Representation and personnel travel expenses 4,262 5,440 4,590 Judicial and notarial expenses 974 952 2,103 Fees for technical reports and auditing 9,379 7,631 7,301 Other general administrative expenses 10,244 10,076 7,759 Outsourced services 57,400 55,757 60,913 Data processing 34,880 36,068 39,286 Products sale - - 226 Archive services 3,324 4,427 1,047 Valuation services 2,419 3,489 2,969 Outsourcing 6,878 5,404 7,275 Other 9,899 6,369 10,110 Board expenses 1,290 1,371 1,465 Marketing expenses 18,877 17,844 18,483 Taxes, payroll taxes, and contributions 13,118 12,467 11,844 Real estate taxes 1,443 1,435 1,813 Patents 1,646 1,618 1,589 Other taxes 24 93 3 Contributions to SBIF 10,005 9,321 8,439 Total 230,103 226,413 220,531

DEPRECIATION, AMORTIZATION, AND

DEPRECIATION, AMORTIZATION, AND IMPAIRMENT	12 Months Ended
DEPRECIATION, AMORTIZATION, AND IMPAIRMENT	Dec. 31, 2017
Depreciation Amortization And Impairment
DEPRECIATION, AMORTIZATION, AND IMPAIRMENT	NOTE 32 DEPRECIATION, AMORTIZATION, AND IMPAIRMENT Depreciation, amortization and impairment charges for the years ended December 31, 2017, 2016 and 2015, are detailed below: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Depreciation and amortization Depreciation of property, plant, and equipment (55,623) (45,025) (36,195) Amortization of Intangible assets (22,200) (20,334) (17,419) Total depreciation and amortization (77,823) (65,359) (53,614) Impairment of property, plant, and equipment (354) (234) (21) Impairment of intangibles (5,290) - - Total (83,467) (65,593) (53,635) As of December 31, 2017, the equipment impairment totaled Ch$354 million(Ch$234 million as of December 31, 2016 and Ch$21 million as of December 31, 2015), mainly due to damages to ATMs. The intangible impairment totaled Ch$5,290 due to obsolescence of computer projects.

OTHER OPERATING INCOME AND EXPE

OTHER OPERATING INCOME AND EXPENSES	12 Months Ended
OTHER OPERATING INCOME AND EXPENSES	Dec. 31, 2017
Other Operating Income And Expenses
OTHER OPERATING INCOME AND EXPENSES	NOTE 33 OTHER OPERATING INCOME AND EXPENSES a) Other operating income is comprised of the following components: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income from assets received in lieu of payment 3,330 1,663 2,455 Income from sale of investments in other companies - - 617 Release of contingencies provisions (1) 29,903 - - Other income Leases 264 519 708 Income from sale of property, plant and equipment (2) 23,229 2,017 381 Recovery of provisions for contingencies - - - Compensation from insurance companies due to damages 1,237 1,530 435 Other 4,053 698 1,843 Subtotal 28,783 4,764 3,367 Total 62,016 6,427 6,439 (1) (2) b) For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Allowances and expenses for assets received in lieu of payment Provision on assets received in lieu of payment 3,912 9,246 7,803 Expenses for maintenance of assets received in lieu of payment 1,679 2,170 2,397 Subtotal 5,591 11,416 10,200 Credit card expenses 3,070 3,636 4,624 Customer services 2,563 3,734 3,919 Other expenses Operating charge-offs 1,607 6,146 5,359 Life insurance and general product insurance policies 23,475 18,393 11,225 Additional tax on expenses paid overseas - 142 2,651 Provisions for contingencies - 4,238 15,230 Retail association payment 912 - - Other 31,195 21,197 5,521 Subtotal 57,189 50,116 39,986 Total 68,413 68,902 58,729

TRANSACTIONS WITH RELATED PARTI

TRANSACTIONS WITH RELATED PARTIES	12 Months Ended
TRANSACTIONS WITH RELATED PARTIES	Dec. 31, 2017
Transactions With Related Parties
TRANSACTIONS WITH RELATED PARTIES	NOTE 34 TRANSACTIONS WITH RELATED PARTIES In addition to affiliates and associated entities, the Bank’s “related parties” include its “key personnel” from the executive staff (members of the Bank’s Board of Directors and Managers of Banco Santander Chile and its affiliates, together with their close relatives), as well as the entities over which the key personnel could exercise significant influence or control. The Bank also considers the companies that are part of the Santander Group worldwide as related parties, given that all of them have a common parent, i.e., Banco Santander S.A. (located in Spain). Transactions between the Bank and its related parties are specified below. To facilitate comprehension, we have divided the information into four categories: Santander Group Companies This category includes all the companies that are controlled by the Santander Group around the world, and hence, it also includes the companies over which the Bank exercises any degree of control (affiliates and special-purpose entities). Associated companies This category includes the entities over which the Bank, in accordance with section b) of Note 1 to these Financial Statements, exercises a significant degree of influence and which generally belong to the group of entities known as “business support companies.” Key personnel This category includes members of the Bank’s Board of Directors and managers of Banco Santander Chile and its affiliates, together with their close relatives. Other This category encompasses the related parties that are not included in the groups identified above and which are, in general, entities over which the key personnel could exercise significant influence or control. The terms for transactions with related parties are equivalent to those which prevail in transactions made under market conditions or to which the corresponding considerations in kind have been attributed. a) Loans to related parties: Below are loans and accounts receivable as well as contingent loans that correspond to related entities: As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loans and accounts receivable: Commercial loans 80,076 771 3,947 7,793 81,687 533 4,595 7,100 77,388 565 5,841 1,963 Mortgage loans - - 18,796 - - - 18,046 - - - 20,559 - Consumer loans - - 4,310 - - - 3,783 - - - 2,274 - Loans and accounts receivable: 80,076 771 27,053 7,793 81,687 533 26,424 7,100 77,388 565 28,674 1,963 Allowance for loan losses (209) (9) (177) (18) (209) (35) (87) (34) (213) (190) (62) (20) Net loans 79,867 762 26,876 7,775 81,478 498 26,337 7,066 77,175 375 28,612 1,943 Guarantees 361,452 - 23,868 7,164 434,141 - 23,636 5,486 499,803 - 25,493 1,632 Contingent loans: Personal guarantees - - - - - - - - - - - - Letters of credit 19,251 - - 33 27,268 - - - 29,275 - - - Guarantees 377,578 - - - 437,101 - - - 510,309 - - 2 Contingent loans: 396,829 - - 33 464,369 - - - 539,584 - - 2 Allowance for contingent loans (4) - - 1 (5) - - - (11) - - - Net contingent loans 396,825 - - 34 464,364 - - - 539,573 - - 2 Loan activity to related parties during 2017, 2016 and 2015 is shown below: As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key Personnel Other Companies of the Group Associated companies Key Personnel Other Companies of the Group Associated companies Key Personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 546,058 532 26,423 7,100 616,968 565 28,675 1,966 500,449 9,614 27,087 9,516 Loans granted 78,214 318 7,777 1,050 122,729 203 8,580 6,808 276,383 7 8,991 4,113 Loans payments (147,366) (79) (7,149) (324) (193,189) (236) (10,832) (1,674) (159,864) (9,056) (7,403) (11,663) Total 476,906 771 27,051 7,826 546,508 532 26,423 7,100 616,968 565 28,675 1,966 b) Assets and liabilities with related parties As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Cash and deposits in banks 74,949 - - - 187,701 - - - 23,578 - - - Trading investments - - - - - - - - - - - - Obligations under repurchase agreements Loans - - - - - - - - - - - - Financial derivative contracts 545,028 86,011 - - 742,851 33,433 - - 771,774 24,773 - - Available for sale investments - - - - - - - - - - - - Other assets 8,480 118,136 - - 4,711 67,454 - - 3,218 19,101 - - Liabilities Deposits and other demand liabilities 24,776 25,805 2,470 221 6,988 7,141 2,883 630 9,987 8,535 2,454 1,373 Obligations under repurchase agreements Loans 50,945 - - - 56,167 - - - 12,006 - - - Time deposits and other time liabilities 785,988 27,968 3,703 3,504 1,545,835 6,219 2,525 2,205 1,360,572 234 2,728 898 Financial derivative contracts 418,647 142,750 - 7,190 954,575 54,691 - - 1,323,996 23,326 - - Interbank borrowing - - - - 6,165 - - - - - - - Issued debt instruments 482,626 - - - 484,548 - - - 398,565 - - - Other financial liabilities 4,919 - - - 8,970 - - - 2,409 - - - Other liabilities 164,303 58,168 - - 446 44,329 - - 376 19,541 - - c) Income (expense) recorded due to transactions with related parties For the years ended December 31, 2017 2016 2015 Companies of the Group Associated Companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated Companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income (expense) recorded Interest income and inflation-indexation adjustments (43,892) - 1,051 - (39,279) 40 1,164 115 (10,986) - 1,664 116 Fee and commission income and expenses 72,273 15,404 224 1 56,952 22,322 204 20 35,955 77 208 39 Net income (expense) from financial operations and net foreign exchange gain (loss) () 363,108 (48,453) (3) 19 (343,963) (48,373) (88) 2 (321,985) (16,845) 15 6 Other operating income and expenses 21,670 (1,454) - - 931 (2,239) - - 955 (1,027) - - Key personnel compensation and expenses - - (43,037) - - - (37,328) - - - (39,323) - Administrative and other expenses (48,246) (47,220) - - (35,554) (43,115) - - (30,591) (41,691) - - Total 364,913 (81,723) (41,765) 20 (360,913) (71,365) (36,048) 137 (326,652) (59,486) (37,436) 161 () Primarily relates to derivative contracts used to financially cover exchange risk of assets and liabilities that cover positions of the Bank and its subsidiaries. d) Payments to Board members and key management personnel The compensation received by key management personnel, including Board members and all the executives holding manager positions shown in the “Personnel salaries and expenses” and/or “Administrative expenses” items of the Consolidated Statement of Income, corresponds to the following categories: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Personnel compensation 16,863 17,493 18,605 Board members’ salaries and expenses 1,199 1,269 1,374 Bonuses or gratifications 16,057 14,404 12,861 Compensation in stock 1,923 331 66 Training expenses 68 161 122 Seniority compensation 3,842 2,619 4,154 Health funds 273 285 314 Other personnel expenses 773 916 1,396 Pension plans () 2,039 (150) 431 Total 43,037 37,328 39,323 ()Some of the executives that qualified for this benefit left the Group for different reasons, without complying with the requirements to receive the benefit, therefore the obligation amount decreased, which generated the reversal of provisions. e) Composition of key personnel As of December 31, 2017, 2016 and 2015, the composition of the Bank’s key personnel is as follows: Position No. of executives As of December 31, 2017 2016 2015 Director 11 13 12 Division manager 13 17 16 Department manager 63 76 79 Manager 46 61 53 Total key personnel 133 167 160

PENSION PLANS

PENSION PLANS	12 Months Ended
PENSION PLANS	Dec. 31, 2017
Pension Plans
PENSION PLANS	NOTE 35 PENSION PLANS The Bank has an additional benefit available to its principal executives, consisting of a pension plan. The purpose of the pension plan is to endow the executives with funds for a better supplementary pension upon their retirement. For this purpose, the Bank will match the voluntary contributions made by the beneficiaries for their future pensions with an equivalent contribution. The executives will be entitled to receive this benefit only when they fulfill the following conditions: a. Aimed at the Bank’s management. b. The general requisite to apply for this benefit is that the employee must be carrying out his/her duties when turning 60 years old. c. The Bank will create a pension fund, with life insurance, for each beneficiary in the plan. Periodic contributions into this fund are made by the manager and matched by the Bank. d. The Bank will be responsible for granting the benefits directly. If the working relationship between the manager and the respective company ends, before s/he fulfills the abovementioned requirements, s/he will have no rights under this benefit plan. In the event of the executive’s death or total or partial disability, s/he will be entitled to receive this benefit. The Bank will make contributions to this benefit plan on the basis of mixed collective insurance policies whose beneficiary is the Bank. The life insurance company with whom such policies are executed is not an entity linked or related to the Bank or any other Santander Group company. Plan Assets owned by the Bank at the end of 2017 totaled Ch$7,919 million (Ch$6,612 million in 2016). The amount of the defined benefit plans has been quantified by the Bank, based on the following criteria: Calculation method: Use of the projected unit credit method which considers each working year as generating an additional amount of rights over benefits and values each unit separately. It is calculated based primarily on fund contributions, as well as other factors such as the legal annual pension limit, seniority, age and yearly income for each unit valued individually. Assets related to the pension fund contributed by the Bank into the Seguros Euroamérica insurance company with respect to defined benefit plans are presented as net of associated commitments. Actuarial hypothesis assumptions: Actuarial assumptions with respect to demographic and financial variables are non-biased and mutually compatible with each other. The most significant actuarial hypotheses considered in the calculations were: Plans post - employment Plans post- employment 2017 2016 Mortality chart RV-2014 RV-2014/CB-2014 Termination of contract rates 5.0% 5.0% Impairment chart PDT 1985 PDT 1985 Activity for post-employment benefits is as follows: As of December 31, 2017 2016 MCh$ MCh$ Plan assets 7,919 6,612 Commitments for defined-benefit plans For active personnel (6,998) (4,975) Incurred by inactive personnel - - Minus: Unrealized actuarial (gain) losses - - Balances at year end 921 1,637 Year’s cash flow for post-employment benefits is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ a) Fair value of plan assets Opening balance 6,612 6,945 6,495 Expected yield of insurance contracts 307 335 432 Employer contributions 1,931 886 18 Actuarial (gain) losses - - - Premiums paid - - - Benefits paid (931) (1,554) - Fair value of plan assets at year end 7,919 6,612 6,945 b) Present value of obligations Present value of obligations opening balance (4,975) (5,070) (4,639) Net incorporation of Group companies - - - Service cost (2,039) 150 (431) Interest cost - - - Curtailment/settlement effect - - - Benefits paid - - - Past service cost - - - Actuarial (gain) losses - - - Other 16 (55) - Present value of obligations at year end (6,998) (4,975) (5,070) Net balance at year end 921 1,637 1,875 Plan expected profit: As of December 31, 2017 2016 2015 Type of expected yield from the plan’s assets UF + 2.50% annual UF + 2.50% annual UF + 2.50% annual Type of yield expected from the reimbursement rights UF + 2.50% annual UF + 2.50% annual UF + 2.50% annual Plan associated expenses: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Current period service expenses 2,039 (150) 431 Interest cost - - - Expected yield from plan’s assets (307) (335) (432) Expected yield of insurance contracts linked to the Plan: Extraordinary allocations - - - Actuarial (gain)/ losses recorded in the period - - - Past service cost - - - Other - - - Total 1,732 (485) (1)

FAIR VALUE OF FINANCIAL ASSETS

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES	12 Months Ended
FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES	Dec. 31, 2017
Fair Value Of Financial Assets And Liabilities
FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES	NOTE 36 FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The measurement of fair value assumes the sale transaction of an asset or the transference of the liability happens within the main asset or liability market, or the most advantageous market for the asset or liability. For financial instruments with no available market prices, fair values have been estimated by using recent transactions in analogous instruments, and in the absence thereof, the present values or other valuation techniques based on mathematical valuation models sufficiently accepted by the international financial community. In the use of these models, consideration is given to the specific particularities of the asset or liability to be valued, and especially to the different kinds of risks associated with the asset or liability. These techniques are significantly influenced by the assumptions used, including the discount rate, the estimates of future cash flows and prepayment expectations. Hence, the fair value estimated for an asset or liability may not coincide exactly with the price at which that asset or liability could be delivered or settled on the date of its valuation, and may not be justified in comparison with independent markets. Except as detailed in the following table, management considers that the carrying amounts of financial assets and financial liabilities recognised in the consolidated financial statements approximate their fair values. Determination of fair value of financial instruments Below is a comparison between the value at which the Bank’s financial assets and liabilities are recorded and their fair value as of December 31, 2017 and 2016: As of December 31, 2017 2016 Book value Fair value Book value Fair value MCh$ MCh$ MCh$ MCh$ Assets Trading investments 485,736 485,736 396,987 396,987 Financial derivative contracts 2,238,647 2,238,647 2,500,782 2,500,782 Loans and accounts receivable from customers and interbank loans, net 26,934,757 28,518,929 26,415,826 29,976,931 Available for sale investments 2,574,546 2,574,546 3,388,906 3,388,906 Guarantee deposits (margin accounts) 323,767 323,767 396,289 396,289 Liabilities Deposits and interbank borrowings 21,380,468 20,887,959 22,607,392 22,833,009 Financial derivative contracts 2,139,488 2,139,488 2,292,161 2,292,161 Issued debt instruments and other financial liabilities 7,335,683 7,487,591 7,566,388 8,180,322 Guarantees received (margin accounts) 408,313 408,313 480,926 480,926 The fair value approximates the carrying amount of the following line items due to their short-term nature: cash and deposits-banks, cash items in process of collection and investments under resale or repurchase agreements. In addition, the fair value estimates presented above do not attempt to estimate the value of the Bank’s profits generated by its business activity, nor its future activities, and accordingly, they do not represent the Bank’s value as a going concern. Below is a detail of the methods used to estimate the financial instruments’ fair value. a) Trading investments and available for sale investment instruments The estimated fair value of these financial instruments was established using market values or estimates from an available dealer, or quoted market prices of similar financial instruments. Investments are evaluated at recorded value since they are considered as having a fair value not significantly different from their recorded value. To estimate the fair value of debt investments or representative values in these lines of businesses, we take into consideration additional variables and elements, as long as they apply, including the estimate of prepayment rates and credit risk of issuers. b) Loans and accounts receivable from customers and interbank loans Fair value of commercial, mortgage and consumer loans and credit cards is measured through a discounted cash flow (DCF) analysis. To do so, we use current market interest rates considering product, term, amount and similar loan quality. Fair value of loans with 90 days or more of delinquency are measured by means of the market value of the associated guarantee, minus the rate and term of expected payment. For variable rate loans whose interest rates change frequently (monthly or quarterly) and that are not subjected to any significant credit risk change, the estimated fair value is based on their book value. c) Deposits Disclosed fair value of deposits that do not bear interest and saving accounts is the amount payable at the reporting date and, therefore, equals the recorded amount. Fair value of time deposits is calculated through a discounted cash flow calculation that applies current interest rates from a monthly calendar of scheduled maturities in the market. d) Short and long term issued debt instruments The fair value of these financial instruments is calculated by using a discounted cash flow analysis based on the current incremental lending rates for similar types of loans having similar maturities. e) Financial derivative contracts The estimated fair value of financial derivative contracts is calculated using the prices quoted on the market for financial instruments having similar characteristics. The fair value of interest rate swaps represents the estimated amount that the Bank determines as exit price in accordance with IFRS 13. If there are no quoted prices from the market (either direct or indirect) for any derivative instrument, the respective fair value estimates have been calculated by using models and valuation techniques such as Black-Scholes, Hull, and Monte Carlo simulations, taking into consideration the relevant inputs/outputs such as volatility of options, observable correlations between underlying assets, counterparty credit risk, implicit price volatility, the velocity with which the volatility reverts to its average value, and the straight-line relationship (correlation) between the value of a market variable and its volatility, among others. Measurement of fair value and hierarchy IFRS 13 - Fair Value Measurement, provides a hierarchy of reasonable values which separates the inputs and/or valuation technique assumptions used to measure the fair value of financial instruments. The hierarchy reflects the significance of the inputs used in making the measurement. The three levels of the hierarchy of fair values are the following: • Level 1: the inputs are quoted prices (unadjusted) on active markets for identical assets and liabilities that the Bank can access on the measurement date. • Level 2: inputs other than the quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. • Level 3: inputs are unobservable inputs for the asset or liability i.e. they are not based on observable market data. The hierarchy level within which the fair value measurement is categorized in its entirety is determined based on the lowest level of input that is significant to the fair value measurement in its entirety. The best evidence of a financial instrument’s fair value at the initial time is the transaction price. In cases where quoted market prices cannot be observed, Management makes its best estimate of the price that the market would set using its own internal models which in most cases use data based on observable market parameters as a significant input (Level 2) and, in very specific cases, significant inputs not observable in market data (Level 3). Various techniques are employed to make these estimates, including the extrapolation of observable market data. Financial instruments at fair value and determined by quotations published in active markets (Level 1) include: - Chilean Government and Department of Treasury bonds - U.S. Treasury Bonds Instruments which cannot be 100% observable in the market are valued according to other inputs observable in the market (Level 2). The following financial instruments are classified under Level 2: Type of financial instrument Model used in valuation Description of unobservable inputs Mortgage and private bonds Present Value of Cash Flows Model Internal Rates of Return (“IRRs”) are provided by RiskAmerica, according to the following criterion: If, at the valuation day, there are one or more valid transactions at the Santiago Stock Exchange for a given nemotechnic, the reported rate is the weighted average amount of the observed rates. In the case there are no valid transactions for a given mnemonic on the valuation day, the reported rate is the IRR base from a reference structure, plus a spread model based on historical spread for the same item or similar ones. Time deposits Present Value of Cash Flows Model IRRs are provided by RiskAmerica, according to the following criterion: If, at the valuation day, there are one or more valid transactions at the Santiago Stock Exchange for a given mnemonic, the reported rate is the weighted average amount of the observed rates. In the case there are no valid transactions for a given mnemonic on the valuation day, the reported rate is the IRR base from a reference structure, plus a spread model based on issuer curves. Constant Maturity Swaps (CMS), FX and Inflation Forward (Fwd) , Cross Currency Swaps (CCS), Interest Rate Swap (IRS) Present Value of Cash Flows Model IRRs are provided by ICAP, GFI, Tradition, and Bloomberg according to this criterion: With published market prices, a valuation curve is created by the bootstrapping method and is then used to value different derivative instruments. FX Options Black-Scholes Formula adjusted by the volatility simile (implicit volatility). Prices (volatility) are provided by BGC Partners, according to this criterion: With published market prices, a volatility parameter is created by interpolation and then these volatilities are used to value options. In limited occasions significant inputs not observable in market data are used (Level 3). To carry out this estimate, several techniques are used, including extrapolation of observable market data or a mix of observable data. The following financial instruments are classified under Level 3: Type of financial instrument Model used in valuation Description of no observable inputs Caps/ Floors/ Swaptions Black Normal Model for Cap/Floors and Swaptions There is no observable input of implicit volatility. UF options Black – Scholes There is no observable input of implicit volatility. Cross currency swap with window Hull-White Hybrid HW model for rates and Brownian motion for FX There is no observable input of implicit volatility. CCS (special contracts) Implicit Forward Rate Agreement (FRA) Start Fwd unsupported by MUREX (platform) due to the UF forward estimate. Cross currency swap, Interest rate swap, Call money swap in Tasa Activa Bancaria (Active Bank Rate) TAB, Present Value of Cash Flows Model Validation obtained by using the interest curve and interpolating flow maturities, but TAB is not a directly observable variable and is not correlated to any market input. Bonds (in our case, low liquidity bonds) Present Value of Cash Flows Model Valued by using similar instrument prices plus a charge-off rate by liquidity. The Bank does not believe that any change in unobservable inputs with respect to level 3 instruments would result in a significantly different fair value measurement. The following table presents the assets and liabilities that are measured at fair value on a recurrent basis, as of December 31, 2017 and 2016: Fair value measurement As of December 31, 2017 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Trading investments 485,736 481,642 4,094 - Available for sale investments 2,574,546 2,549,226 24,674 646 Derivatives 2,238,647 - 2,216,306 22,341 Guarantee deposits (margin accounts) 323,767 323,767 - - Total 5,622,696 3,354,635 2,245,074 22,987 Liabilities Derivatives 2,139,488 - 2,139,481 7 Guarantees received (margin accounts) 408,313 408,313 - - Total 2,547,801 408,313 2,139,481 7 Fair value measurement As of December 31, 2016 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Trading investments 396,987 396,011 976 - Available for sale investments 3,388,906 2,471,439 916,808 659 Derivatives 2,500,782 - 2,461,407 39,375 Guarantee deposits (margin accounts) 396,289 396,289 - - Total 6,682,964 3,263,739 3,379,191 40,034 Liabilities Derivatives 2,292,161 - 2,292,118 43 Guarantees received (margin accounts) 480,926 480,926 - - Total 2,773,087 480,926 2,292,118 43 The following table presents assets or liabilities which are not measured at fair value in the statement of financial position but for which the fair value is disclosed, as of December 31, 2017 and 2016: Fair value measurement As of December 31, 2017 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Loans and accounts receivable from customers and interbank loans, net 28,518,929 - - 28,518,929 Total 28,518,929 - - 28,518,929 Liabilities Deposits and interbank borrowings 20,887,959 - 20,887,959 - I ssued debt instruments and other financial liabilities 7,487,591 - 7,487,591 - Total 28,375,550 - 28,375,550 - Fair value measurement As of December 31, 2016 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Loans and accounts receivable from customers and interbank loans, net 29,976,931 - - 29,976,931 Total 29,976,931 - - 29,976,931 Liabilities Deposits and interbank borrowings 22,833,009 - 22,833,009 - I ssued debt instruments and other financial liabilities 8,180,322 - 8,180,322 - Total 31,013,331 - 31,013,331 - The fair values of others assets and other liabilities approximate their carrying values. The methods and assumptions to estimate the fair value are defined below: - Loans and amounts due from credit institutions and from customers – Fair value are estimated for groups of loans with similar characteristics. The fair value was measured by discounting estimated cash flow using the interest rate of new contracts. That is, the future cash flow of the current loan portfolio is estimated using the contractual rates, and then the new loans spread over the risk free interest rate are incorporated to the risk free yield curve in order to calculate the loan portfolio fair value. In terms of behavior assumptions, it is important to underline that a prepayment rate is applied to the loan portfolio, thus a more realistic future cash flow is achieved. - Deposits and interbank borrowings – The fair value of deposits was calculated by discounting the difference between the cash flows on a contractual basis and current market rates for instruments with similar maturities. For variable-rate deposits, the carrying amount was considered to approximate fair value. - Issued debt instruments and other financial liabilities – The fair value of long-term loans were estimated by cash flow discounted at the interest rate offered on the market with similar terms and maturities. The valuation techniques used to estimate each level are defined in note 1.h.i) There were no transfer between levels 1 and 2 for the year ended December 31, 2017 and 2016. The table below shows the effect, at December 31, 2017 and 2016, on the fair value of the main financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation. This effect was determined by a sensitivity analysis under a 1bp scenario, detailed in the following table: As of December 31, 2017 Instrument Level 3 Valuation technique Main unobservable inputs Impacts (in MCh$) Sens. -1bp Unfavorable scenario Impacts (in MCh$) Sens. +1bp Favorable scenario Derivatives Present Value method Curves on TAB (1) (1.3) 1.3 Available for sale investments Internal rate of return method BR UF (2) - - As of December 31, 2016 Instrument Level 3 Valuation technique Main unobservable inputs Impacts (in MCh$) Sens. -1bp Unfavorable scenario Impacts (in MCh$) Sens. +1bp Favorable scenario Derivatives Present Value method Curves on TAB (1) (12.30) 12.30 Available for sale investments Internal rate of return method BR UF (2) - - (1) TAB: “Tasa Activa Bancaria” (Active Bank Rate). Average interest rates on 30, 90, 180 and 360 day deposits published by the Chilean Association of Banks and Financial Institutions (ABIF) in nominal currency (Chilean peso) and in real terms, adjusted for inflation (in Chilean unit of account (Unidad de Fomento - UF)). (2) BR: “Bonos de Reconocimiento” (Recognition Bonds). The Recognition Bond is an instrument of money provided by the State of Chile to workers who joined the new pension system, which began operating since 1981. The following table presents the Bank’s activity for assets and liabilities measured at fair value on a recurrent basis using unobserved significant inputs (Level 3) as of December 31, 2017 and 2016: Assets Liabilities MCh$ MCh$ As of January 1, 2017 (79,181) 43 Total realized and unrealized profits (losses) Included in statement of income (17,035) (36) Included in other comprehensive income (12) - Purchases, issuances, and loans (net) - - As of December 31, 2017 62,134 7 Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016 (17,047) (36) Assets Liabilities MCh$ MCh$ As of January 1, 2016 39,913 - Total realized and unrealized profits (losses) Included in statement of income 39,376 43 Included in other comprehensive income (108) - Purchases, issuances, and loans (net) - - As of December 31, 2016 79,181 43 Total profits or losses included in comprehensive income for 2016 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2015 39,268 43 The realized and unrealized profits (losses) included in comprehensive income for 2017 and 2016, in the assets and liabilities measured at fair value on a recurrent basis through unobservable market data (Level 3) are recorded in the Statement of Comprehensive Income. The potential effect as of December 31, 2017 and 2016 on the valuation of assets and liabilities valued at fair value on a recurrent basis through unobservable significant inputs (level 3), generated by changes in the principal assumptions if other reasonably possible assumptions that are less or more favorable were used, is not considered by the Bank to be significant. The following tables show the financial instruments subject to compensation in accordance with IAS 32, for 2017 and 2016: As of December 2017 Linked financial instruments, compensated in balance Financial instruments Gross amounts Compensated in balance Net amount presented in balance Remains of unrelated and / or unencumbered financial instruments Amount in Statements of Financial Position Assets Ch$ Million Ch$ Million Ch$ Million Ch$ Million Financial derivative contracts 2,029,657 - 2,029,657 208,990 2,238,647 Investments under resale agreements - - - - - Loans and accounts receivable from customers, and Interbank loans, net - - - 26,934,757 26,934,757 Total 2,029,657 - 2,029,657 27,143,747 29,173,404 Liabilities Financial derivative contracts 1,927,654 - 1,927,654 211,834 2,139,488 Investments under resale agreements 268,061 - 268,061 268,061 Deposits and interbank borrowings - - - 21,380,467 21,380,467 Total 2,195,715 - 2,195,715 21,592,301 23,788,016 As of December 2016 Linked financial instruments, compensated in balance Financial instruments Gross amounts Compensated in balance Net amount presented in balance Remains of unrelated and / or unencumbered financial instruments Amount in Statements of Financial Position Assets Ch$ Million Ch$ Million Ch$ Million Ch$ Million Financial derivative contracts 2,237,731 - 2,237,731 263,051 2,500,782 Obligations under repurchase agreements 6,736 - 6,736 - 6,736 Loans and accounts receivable from customers, and Interbank loans, net - - - 26,415,826 26,415,826 Total 2,244,467 - 2,244,467 26,678,877 28,923,344 Liabilities Financial derivative contracts 2,100,955 - 2,100,955 191,206 2,292,161 Investments under resale agreements 212,437 - 212,437 - 212,437 Deposits and interbank borrowings - - - 22,607,392 22,607,392 Total 2,313,392 - 2,313,392 22,798,598 25,111,990 The Bank, in order to reduce its credit exposure in its financial derivative operations, has entered into collateral contracts with its counterparties, in which it establishes the terms and conditions under which they operate. In terms collateral (received/delivered) operates when the net of the fair value of the financial instruments held exceed the thresholds defined in the respective contracts. As of December 31, 2017 As of December 31, 2016 Financial derivative contracts Assets Liability Assets Liability MM$ MM$ MM$ MM$ Financial derivative contracts with collateral agreement threshold equal to zero 1,898,220 1,773,471 2,134,917 1,986,345 Financial derivative contracts with non-zero threshold collateral agreement 221,030 316,840 233,945 238,450 Financial derivative contracts without collateral agreement 119,397 49,177 131,920 67,366 Total 2,238,647 2,139,488 2,500,782 2,292,161

RISK MANAGEMENT

RISK MANAGEMENT	12 Months Ended
RISK MANAGEMENT	Dec. 31, 2017
Risk Management
RISK MANAGEMENT	NOTE 37 RISK MANAGEMENT Introduction and general description The Bank, due to its activities with financial instruments is exposed to several types of risks. The main risks related to financial instruments that apply to the Bank are as follows: - Market risk a. Foreign exchange risk: this arises as a consequence of exchange rate fluctuations among currencies. b. Interest rate risk: this arises as a consequence of fluctuations in market interest rates. c. Price risk: this arises as a consequence of changes in market prices, either due to factors specific to the instrument itself or due to factors that affect all the instruments negotiated in the market. d. Inflation risk: this arises as a consequence of changes in Chile’s inflation rate, whose effect would be mainly applicable to financial instruments denominated in UFs. - Credit risk - Liquidity risk - Capital risk This note includes information on the Bank’s exposure to these risks and on its objectives, policies, and processes involved in their measurement and management. Risk management structure The Board is responsible for the establishment and monitoring of the Bank’s risk management structure, for which purpose it has an on-line corporate governance system which incorporates international recommendations and trends, adapted to Chilean regulatory conditions and given it the ability to apply the most advanced practices in the markets in which the Bank operates. The effectiveness with which we are able to manage the balance between risk and reward is a significant factor in our ability to generate long term, stable earnings growth. Toward that end, our Board and senior management places great emphasis on risk management. A. Integral Risk Committee The Integral Risk Committee of the Board is responsible for reviewing and monitoring all risks that may affect us, including reputation risk, allowing for an integral risk management. This committee serves as the governing body through which the Board supervises risk in general. It also evaluates the reasonability of the systems for measurement and control of risks. Credit risk Market risk Operational risk Solvency risk (BIS) Legal risks Compliance risks Reputational risks This Committee includes the Vice Chairman of the Board and five Board members. This committee also includes the CEO, the Director of Risk and other senior level executives from the commercial side of our business. B. Audit Committee The Audit Committee ( Comité de Directores y Auditoría C. Asset and Liability Committee The ALCO includes the Chairman of the Board and five additional members of the Board, the Chief Executive Officer, the Corporate Financial Controller, the Manager of the Financial Management Division, the Manager of Market Risk, the Manager of the Treasury Division, and other senior members of management. The ALCO meets monthly. All limits reviewed by the ALCO are measured and prepared by the Market Risk Department. The non-Board members of the ALCO meet weekly to review liquidity, funding, capital and market risk related matters. The main functions of the ALCO are: Making the most important decisions regarding our exposure to inflation, interest rate risk, funding, capital and liquidity levels. The main limits set and monitored by the ALCO (and measured by the Market Risk Department) are: Review of the Bank’s inflation gap. Review of the evolution of the most relevant local and international markets and monetary policies. D. Market Committee The Market Committee includes the Vice-Chairman of the Board, three additional members of the Board, the Chief Executive Officer, the Manager of Global Banking and Markets, the Manager of the Treasury Division, the Manager of the Financial Management Division, the Manager of Market Risk, the Financial Controller and other senior members of management. The Market Committee is responsible for: Establishing a strategy for the Bank’s trading investment portfolio. Establishing the Bank’s policies, procedures and limits with respect to its trading portfolio. The Bank’s Market Risk Department measures all risks and limits and reports these to the Market Committee. Reviewing the net foreign exchange exposure and limit Reviewing the evolution of the most relevant local and international markets and monetary policies. E. Risk Department All issues regarding risk in the Bank are the responsibility of the Bank’s Risk Department. The Risk Department reports to the CEO but has full independence, and no risk decisions can be made without its approval. Credit risk Credit risk is the risk that one of the parties to a financial instrument fails to meet its contractual obligations for reasons of insolvency or inability of the individuals or legal entities in question to continue as a going concern, causing a financial loss to the other party. The Bank consolidates all elements and components of credit risk exposure to manage credit risk (e.g. individual delinquency risk, inherent risk of a business line or segment, and/or geographical risk). In Note 9 h), we present our net exposure to credit risk at December 31, 2017 and 2016. Credit Risk Governance The Risk Division, our credit analysis and risk management group, is largely independent of our Commercial Division. Risk evaluation teams interact regularly with our clients. For larger transactions, risk teams in our headquarters work directly with clients when evaluating credit risks and preparing credit applications. Various credit approval committees, all of which include Risk Division and Commercial Division personnel, must verify that the appropriate qualitative and quantitative parameters are met by each applicant. Each committee’s powers are defined by our Board of Directors. Santander-Chile’s governance rules have established the existence of the Integral Risk Committee. This committee is responsible for revising and following all risks that may affect us, including reputational risk, allowing for an integral risk management. This committee serves as the governing body through which the Board supervises all risk functions. It also evaluates the reasonability of the systems for measurement and control of risks. This Committee includes the Vice Chairman of the Board and five Board members. The Board has delegated the duty of credit risk management to the Integral Risk Committee, as well as to the Bank’s risk departments, whose roles are summarized below: Formulation of credit policies, by consulting with the business units, meeting requirements of guarantees, credit evaluation, risk rating and submission of reports, documentation and legal procedures in compliance with the regulatory, legal and internal requirements of the Bank. Establish the structure to approve and renew credit requests. The Bank structures credit risks by assigning limits to the concentration of that risk in terms of individual debtors, debtor groups, industry segment and country. Approval levels are assigned to the correspondent officials of the business unit (commercial, consumer, SMEs) to be exercised by that level of management. In addition, those limits are revised constantly. Teams in charge of risk evaluation at the branch level interact on a regular basis with customers; however, for larger credit requests, the risk team from the head office and the Executive Risk Committee works directly with customers to assess credit risks and prepare risk requests. Limit concentrations of exposure to customers or counterparties in geographic areas or industries (for accounts receivable or loans), and by issuer, credit rating, and liquidity. Develop and maintain the Bank’s credit risk classifications for the purpose of classifying risks according to the degree of exposure to financial loss that is exhibited by the respective financial instruments, with the aim of focusing risk management specifically on the associated risks. Revise and evaluate credit risk. Management’s risk divisions are largely independent of the Bank’s commercial division and evaluate all credit risks in excess of the specified limits prior to loan approvals for customers or prior to the acquisition of specific investments. Credit renewal and reviews are subject to similar processes. The following diagram illustrates the governance of our credit risk division including the committees with approval power: Credit Approval: Loans approved on an individual basis In preparing a credit proposal for a corporate client whose loans are approved on an individual basis, Santander-Chile’s personnel verifies such parameters as debt servicing capacity (typically including projected cash flows), the company’s financial history and projections for the economic sector in which it operates. The Risk Division is closely involved in this process, and prepares the credit application for the client. All proposals contain an analysis of the client’s strengths and weaknesses, a rating and a recommendation. Credit limits are determined not on the basis of outstanding balances of individual clients, but on the direct and indirect credit risk of entire financial groups. For example, a corporation will be evaluated together with its subsidiaries and affiliates. Credit Approval: Loans approved on a group basis The majority of loans to individuals and small and mid-sized companies are approved by the Standardized Risk Area through an automated credit scoring system. This system is decentralized, automated and based on multiple parameters, including demographic and information regarding credit behavior from external sources and the SBIF. Loans analyzed on an individual basis For loans that are greater than Ch$400 million (US$243,170), the Bank uses internal models to assign a risk category level to each borrower and its respective loans. We consider the following risk factors: industry or sector of the borrower, the borrower’s competitive position in its markets, owners or managers of the borrower, the borrower’s financial situation, the borrower’s payment capacity and the borrower’s payment behavior to calculate the estimated incurred loan loss. Through these categories, we differentiate the normal loan portfolio from the impaired one. These are our categories: 1. Debtors may be classified in risk categories A1, A2, A3 or B (A is applicable if they are current on their payment obligations and show no sign of deterioration in their credit quality and B is different from the A categories by a certain history of late payments). The A categories are distinguished by different PNPs (as defined below). 2. Debtors classified as C1, C2, C3, C4, D1 or D2 include debtors whose loans with us have been charged off or administered by our Recovery Unit, or classified as Precontenciosos For loans classified as A1, A2, A3 and B, we assign a specific provision level on an individual basis to each borrower and, therefore, the amount of loan loss allowance is determined on a case by case basis. Estimated Incurred Loan Loss = Loan Loss Allowance The estimated incurred loss is obtained by multiplying all risk factors defined in the following equation: EIL= EXP x PNP x SEV EIL = Estimated Incurred Loan Loss. The estimated incurred loan loss is how much could be lost in the event a debtor does not perform the obligations under the loan. EXP = Exposure. This corresponds to the value of commercial loans. PNP = Probability of Non-Performance. This variable, expressed as a percentage, indicates the probability that a debtor will default. This percentage is associated with the internal rating that we give to each debtor, which is determined by analyzing such parameters as debt servicing capacity. SEV = Severity. This is the effective loss rate given default for debtors in the same segment, which is determined statistically based on the historical effective losses for us for each segment. Every year, models together with PNP and SEV assumptions, are tested by the Bank’s Credit Risk Department, to ensure that they are appropriate at each reporting date so as to make sure any difference between the estimated incurred losses and real losses is reduced. These tests focus on the validation of the sufficiency of the Bank’s allowances, and consist of comparisons between actual write-offs to allowances established by the model, and the coverage of the total allowance to actual write-offs in the most current periods. Individual loan classification and improvements to any customer classification are also presented for approval to our Risk Committee. In accordance with such policy, every year we update appraisals of fair value of collateral before the end of the 24 month period for certain customers and such updated appraisals are considered in the calculation of the allowance for loan losses. The number of updated appraisals performed in 2015 was 43, in 2016 was 142 and 2017 it was 140, and such updated appraisals were performed mainly because of changes in customer conditions (renegotiation deterioration of financial situation increase in credit line). For loans classified in the C and D categories, loan loss allowances are based mainly on the fair value of the collateral, adjusted for an estimate cost to sell, that each of these loans have. Allowance percentage for each category is then based on the fair value of the collateral, or the expected future cash flow from the loan for each individually evaluated non-performing loans. Loans analyzed on a group basis The Bank uses the concept of estimated incurred loss to quantify the allowances levels over loan analyzed on a group basis. Incurred loss is the expected provision expense that will appear one year away from the balance date of the transaction’s credit risk, considering the counterpart risk and the collateral associated to each transaction. Following the Bank’s definition, the Bank uses group evaluation to approach transactions that have similar credit risk features, which indicate the debtor’s payment capacity of the entire debt, capital and interests, pursuant to the contract’s terms. In addition, this allows us to assess a high number of transactions with low individual amounts, whether they belong to individuals or small sized companies. Therefore, debtors and loans with similar features are grouped together and each group has a risk level assigned to it. These models are meant to be used mainly to analyze loans granted to individuals (including consumer loans, credit lines, mortgage loans and commercial loans) and commercial loans to SMEs. Allowances are established using these models, taking into account the historical impairment and other known circumstances at the time of evaluation. After this, a historical loss rate is assigned to each portfolio profile constituting each segment. The method for assigning a profile is established based on a statistical building method, establishing a relation through a logistic regression various variables, such as payment behavior in the Bank, payment behavior outside the Bank, various socio-demographic data, among others, and a response variable that determines a client’s risk level, which in this case is 90 days of non-performance. Afterwards, common profiles are established related to a logical order and with differentiate default rates, applying the real historical loss the Bank has had with that portfolio. Our models for loans analyzed on a group basis (consumer loans, residential mortgage loans and small-and-mid-sized commercial loans) are monitored on a monthly basis with respect to predictability and stability, using indices that seek to capture the underlying need to update the models for current loss trends. Therefore, the periods of historical net charge-offs used in the allowance model may be more than a year old as we only update the historical net charge-offs only when our assessment of predictability and stability indicators determine it is necessary. The different risk categories are constructed and updated periodically based on the payment behavior of the client’s profile to which they belong, as well as his or her socio-demographic characteristics. Therefore, when a customer has past due balance or has missed some payments, the outcome is that the customer will move to a different segment with a higher loss rate, therefore capturing current trends for each risk profile. Once the customers have been classified, the loan loss allowance is the product of three factors: Exposure (EXP), Probability of Non-Performance (PNP) and Severity (SEV). EXP = Exposure. This corresponds to the value of commercial loans. PNP = Probability of Non-Performing. This variable, expressed as a percentage, indicates the probability that a debtor will default. This percentage is associated with the internal score that we give to each debtor, which is determined by analyzing such parameters as debt servicing capacity (including, usually, projected cash flows), the company’s financial history, the solvency and capacity of shareholders and management, and projections for the economic sector in which it operates. The internal rating can be different from ratings obtained from external third parties. SEV = Severity. This is the effective loss rate given default for debtors in the same segment, which is determined statistically based on the historical effective losses for us for each segment. Every year, models together with PNP and SEV assumptions, are tested by the Bank’s Credit Risk Department, to ensure that they are appropriate at each reporting date so as to make sure any difference between the estimated incurred losses and real losses is reduced. Allowances for consumer loans The estimated incurred loss rates for consumer loans correspond to charge-offs net of recoveries. The methodology establishes the period in which the estimated incurred loss for each risk profile emerges. Once the loss has been considered to have been incurred, the estimated incurred loss rates are applied to the corresponding risk profile to obtain the net charge-off level associated with this period. The loss rates applied to each risk profile are based only on the historical net charge-off data for that specific profile within one of the four groups of consumer loans. No other statistical or other information other than net charge-offs is used to determine the loss rates. The following diagrams set forth the allowances required by our current models for consumer loans : Santander: Bank Loan type Allowance Level(1) (Loss rate) Performing New clients Existing clients Banefe (3) 0.53% -19.75% 0.05%-11.92% 0.13%-18.67% Renegotiated consumer loans which were less than 90 days past due at the time of renegotiation (2) 3.66%-30.40% 10.19%-43.71% Consumer Renegotiated consumer loans which were more than 90 days past due at the time of renegotiation (2) 41.50%-100% 51,11%-100% Days Past Due New Clients Existing Clients Previously Renegotiated Bank Previously Renegotiated Banefe (3) 90-120 31.78% 31.78% 41.50% 51.11% Non-performing 120-150 51.17% 51.17% 60.15% 66.65% 150-180 59.98% 59.98% 68.86% 78.50% >180 Charged-off 1. Percentage of loans outstanding 2. This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation. There are two renegotiated categories in our consumer loan portfolio: 1. Renegotiated Consumer which were less than 90 days past due at the time of renegotiation. The allowance for loan loss percentages (or loss rates) are assigned based on eight different risk profiles which are determined based on demographic and payment behavior variables. 2. Renegotiated Consumer which were more than 90 days past due at the time of renegotiation The loss rates are assigned based on four different risk profiles which are determined based on the number of days overdue at the time of renegotiation: Profile 1: 180 or more days past due Profile 2: between 150 and 180 days past due Profile 3: between 120 and 150 days past due Profile 4: between 90 and 120 days past due Small- and mid-sized commercial loans To determine the estimated incurred loss for individuals (natural persons), small- and mid-sized commercial loans collectively evaluated for impairment, we mainly analyze the payment behavior of clients, particularly the payment behavior of clients with payments that are 90 days or more past-due, clients with other weaknesses, such as early non-performance (i.e., payments that are past-due, though by less than 90 days), clients with modified loans and clients with renegotiated loans, as well as success in recovery against these clients. We also consider whether the loan has underlying mortgage collateral. The risk categories are such that when a customer has a past-due balance or has missed some payments, the outcome is that the customer will move to a different risk category with a higher loss rate, therefore capturing current trends of the customer and, in the aggregate, current trends in the market. In order to calculate the estimated incurred loan loss for all commercial loans collectively evaluated for impairment, the Bank sub-divided the portfolio in the following way: Loan type Allowance Level(1) (Loss rate) Commercial loans analyzed on a group basis Performing Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise 0.87% -15.70% 0.03%-3.98% 0.21%-14.39% 0.14%-7.31 Renegotiated commercial loans which were less than 90 days past due at the time of renegotiation (2) loan w/o mortgage collateral 2.93%-20.65% loan with mortgage collateral 1.17%-8.25% Renegotiated commercial loans which were more than 90 days past due at the time of renegotiation (2) Days Past Due when renegotiated Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise 90-179 41.69% 12.15% 30.95% 18.93% 180-359 67.31% 23.42% 64.47% 51.86% 360-719 75.69% 34.65% 70.15% 63.12% >720 83.82% 46.25% 74.53% 72.87% Non-performing consumer Days Past Due Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise Previously renegotiated 90-179 41.69% 12.15% 30.95% 18.93% 18.93% 180-359 67.31% 23.42% 64.47% 51.86% 51.86% 360-719 75.69% 34.65% 70.15% 63.12% 63.12% >720 83.82% 46.25% 74.53% 72.87% 72.87% 1. Percentage of loans outstanding 2. This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation. Allowances for residential mortgage loans The provision methodology for residential mortgage loans takes into consideration different factors in order to group customers with less the 90 days past due into seven different risk profiles. Factors considered, in the first place, are whether the customer is a new customer or with prior history with the Bank. For each of these main categories additional factors are considered in order to develop risk profiles within each risk category, including payment behavior, non-performance less than 90 days, collateral levels, renegotiation history with the Bank, and historical amounts of net charge-offs, among others. The explanation for the initial segregation into three categories, existing, new customer, is as follows: an existing customer is a customer for which there is a broader level of information and history of payment behavior with the Bank, while for a new customer the Bank has no history of payment behavior and only information from the banking system and credit bureaus is available. The risk categories are such that when a customer’s payment behavior deteriorates, the outcome is that the customer will move to a different risk category with a higher loss rate, therefore capturing the current status of the customer. Previous to 2016, mortgage loans with more than 90 days past due balances are assigned a loss rate of 11.01%. In 2016, mortgage loans more than 90 days past due balances are assigned a loss rate depending on the loan to value. We determined that 90 days is appropriate, since our historical analysis of customer’s behavior has shown that after 90 days, customers are likely to default on their obligations, and that, over succeeding periods, the loss incurred does not increase given the high fair value of collateral percentage to loan amount required under our credit policies for this type of loan. Also, we note that the Chilean economy’s stability over the last few years has not resulted in other than insignificant fluctuations in collateral fair values on residential mortgage loan properties. The following table sets forth the required loan loss allowance for residential mortgage loans: Bank Loan type Allowance Level(1) (Loss rate) Residential mortgage Performing Bank (excl Select) Santander Select 0.00%-5.18% 0.00%-3.88% Renegotiated mortgage loans which were less than 90 days past due at the time of renegotiation (2) 0.16%-8.37% Renegotiated mortgage loans which were more than 90 days past due at the time of renegotiation (2) 5.58%-26.25% Non-performing mortgage Loan to Value 0-60 5.58% 60-80 8.48% 80-90 11.93% >90 16.25% 1. Percentage of loans outstanding 2. This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation. The following table shows quality assets and its related provision, based on our internal scoring policy as of December 31, 2017 and 2016: As of December 31, Category 2017 2016 Commercial Portfolio Individual Percentage Allowance Percentage Individual Percentage Allowance Percentage MCh$ % MCh$ % MCh$ % MCh$ % A1 1,051,072 3.79% 827 0.10% 1,599,311 5.88% 923 0.12% A2 5,957,305 21.49% 18,514 2.34% 6,437,930 23.67% 23,757 3.00% A3 2,176,779 7.85% 27,894 3.53% 2,030,867 7.46% 29,668 3.75% B 539,074 1.94% 32,089 4.06% 538,909 1.98% 40,545 5.13% C1 145,033 0.52% 2,604 0.33% 121,893 0.45% 2,176 0.28% C2 56,871 0.21% 5,104 0.65% 51,034 0.19% 4,555 0.58% C3 39,825 0.14% 8,935 1.13% 49,901 0.18% 11,136 1.41% C4 53,261 0.19% 19,120 2.42% 64,118 0.24% 22,894 2.90% D1 71,896 0.26% 41,941 5.30% 73,462 0.27% 42,625 5.39% D2 77,048 0.28% 62,234 7.87% 89,857 0.33% 72,192 9.13% Subtotal 10,168,164 36.67% 219,262 27.73% 11,057,282 40.65% 250,471 31.69% Group Percentage Allowance Percentage Group Percentage Allowance Percentage MCh$ % MCh$ % MCh$ % MCh$ % Commercial Normal portfolio 3,488,633 12.58% 58,728 7.42% 2,741,858 10.08% 58,453 7.39% Impaired portfolio 414,530 1.50% 160,345 20.27% 341,132 1.25% 124,653 15.76% Subtotal 3,903,163 14.08% 219,073 27.69% 3,082,990 11.33% 183,106 23.15% Mortgage Normal portfolio 8,634,351 31.14% 20,174 2.55% 8,221,666 30.22% 23,699 3.00% Impaired portfolio 462,544 1.67% 48,892 6.17% 397,688 1.46% 33,310 4.21% Subtotal 9,096,895 32.81% 69,066 8.72% 8,619,354 31.68% 57,009 7.21% Consumer Normal portfolio 4,230,567 15.26% 114,099 14.42% 4,158,221 15.28% 147,979 18.72% Impaired portfolio 327,125 1.18% 169,657 21.44% 288,584 1.06% 152,040 19.23% Subtotal 4,557,692 16.44% 283,756 35.86% 4,446,805 16.34% 300,019 37.95% Total 27,725,914 100.00% 791,157 100.00% 27,206,431 100.00% 790,605 100.00% See Note 29 for more detail of the Bank’s impaired loans and the associated allowances. Also, see Note 19 for a detail of the maturity of the Bank’s financial assets. Credit quality The Bank determines the credit quality of financial assets using internal credit ratings. The rating process is linked to the Bank’s approval and monitoring processes and is carried out in accordance with risk categories established by current standards. Credit quality is continuously updated based on any favorable or unfavorable developments to customers or their environments, considering aspects such as commercial and payment behavior as well as financial information. See credit quality of loans above. In relation to the credit quality of the investment portfolio, local regulations specify that banks are able to hold only local and foreign fixed–income securities except in certain cases. Additionally, Banco Santander Chile has internal policies to ensure that only securities approved by the Market Risk department, which are stated in the documents “APS” – Products and underlying Approval, are acquired. The Credit Risk Department sets the exposure limits to those approved APS’s . The APS is updated on daily basis. As of December 31, 2017 and 2016, 99% and 76% respectively of our total investment portfolio correspond to securities issued by the Chilean Central Bank and US treasury notes. Maximum exposure to credit risk Financial assets and off-balance sheet commitments For financial assets recognised in the Consolidated Statement of Financial Position, maximum credit risk exposure equals their carrying value. Below is the distribution by financial asset and off-balance sheet commitments of the Bank’s maximum exposure to credit risk as of December 31, 2017 and 2016, without deduction of collateral, security interests or credit improvements received: As of December 31, 2017 2016 Amount of exposure Amount of exposure Note MCh$ MCh$ Deposits in banks 4 839,561 1,709,071 Cash items in process of collection 4 668,145 495,283 Trading investments 5 485,736 396,987 Investments under resale agreements 6 - 6,736 Financial derivative contracts 7 2,238,647 2,500,782 Loans and accounts receivable from customers and interbank loans, net 8 and 9 26,934,757 26,415,826 Available for sale investments 10 2,574,546 3,388,906 Off-balance commitments: Letters of credit issued 201,699 158,800 Foreign letters of credit confirmed 75,499 57,686 Guarantees 1,823,793 1,752,610 Available credit lines 8,135,489 7,548,820 Personal guarantees 81,577 125,050 Other irrevocable credit commitments 260,691 260,266 Total 44,320,140 44,816,823 Foreign derivative contracts As of December 31, 2017, the Bank’s foreign exposure -including counterparty risk in the derivative instruments’ portfolio- was USD 2,090 million or 4.27% of assets. In the table below, exposure to derivative instruments is calculated by using the equivalent credit risk; which equals the replacement carrying amount plus the maximum potential value, considering the cash collateral that minimizes exposure. Below, there are additional details regarding our exposure for those countries classified above 1 and represents our majority of exposure to categories other than 1. Below we detail as of December 31, 2017, considering fair value of derivative instruments. Country Classification Derivative Instruments (adjusted to market) USD MCh$ Deposits USD MCh$ Loans USD MCh$ Financial investments USD MCh$ Total Exposure USD MCh$ Bolivia 3 0.00 0.00 0.06 0.00 0.06 China 2 0.00 0.00 243.95 0.00 243.95 Italy 2 0.00 2.38 0.78 0.00 3.16 México 2 0.00 0.01 0.00 0.00 0.01 Panamá 2 0.63 0.00 0.00 0.00 0.63 Perú 2 3.38 0.00 0.00 0.00 3.38 Thailand 2 0.00 0.00 0.31 0.00 0.31 Turkey 3 0.00 0.00 9.49 0.00 9.49 Total 4.01 2.39 254.59 0.00 260.99 The total amount of this exposure to derivative instruments must be compensated daily with collateral and, therefore, the net credit exposure is USD 0.00. Our exposure to Spain within the group is as follows: Counterpart Country Classification Derivative instruments (market adjusted) MUSD Deposits MUSD Loans MUSD Financial Investments MUSD Exposure Exposure MUSD Banco Santander España (*) Spain 1 9.74 118.26 - - 128.00 Security interests and credit improvements The maximum exposure to credit risk is reduced in some cases by security interests, credit improvements, and other actions which mitigate the Bank’s exposure. Based on the foregoing, the creation of security interests are a necessary but not a sufficient condition for granting a loan; accordingly, the Bank’s acceptance of risks requires the verification of other variables and parameters, such as the ability to pay or generate funds in order to mitigate the risk being taken on. The procedures used for the valuation of security interests utilize the prevailing market practices, which provide for the use of appraisals for mortgage securities, market prices for stock securities, fair value of the participating interest for investment funds, etc. All security interests received must be instrumented properly and registered on the relevant register, as well as have the approval of legal divisions of the Bank. The risk management model includes assessing the existence of adequate and sufficient guarantees that

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2017
Subsequent Events
SUBSEQUENT EVENTS	NOTE 38 SUBSEQUENT EVENTS On February 1, 2018, the Bank placed a Senior Bond corresponding to its "T-15" line for 5,000,000 UF. On February 6, 2018, the Bank placed a Senior Bond corresponding to its "T-11" line for 5,000,000 UF. During the Ordinary Board Meeting of Banco Santander Chile, held on February 27, 2018, the following matters were agreed upon: 1. Due to the resignation of Mr. Vittorio Corbo Lioi from the Board, Mr. Claudio Melandri Hinojosa was assigned as Director and Chairman. In accordance with article 49, N° 8 of the General Law of Banks, Mr. Claudio Melandri Hinojosa will temporarily continue exercising the role of Chief Executive Officer until February 28, 2018 (inclusive). 2. Mr. Miguel Mata Huerta, who is currently Deputy General Manager, has been named as Banco Santander Chile’s Chief Executive Officer, assuming this role on March 1, 2018. The position of Deputy General Manager will no longer be used at Banco Santander Chile. During the Ordinary Board Meeting of Banco Santander Chile, held on March 27, 2018, the following matters were agreed upon: 1. Due to the resignation of the directors Mr. Roberto Méndez Torres and Mr. Roberto Zahler Mayanz, as of this date, the Board has announced the appointment of Mr. Félix de Vicente Mingo and Mr. Alfonso Gómez Morales, who will be incorporated as independent directors. 2. Mr. Orlando Poblete Iturrate has been appointed as First Vice President and Mr. Oscar Von Chrismar Carvajal as the Second Vice President. These consolidated financial statements were approved on March 27,2018 by Board of Directors. There are no other subsequent events to be disclosed that occurred between January 1, 2018 and the date of issuance of these Financial Statements (March 27, 2018).

SUMMARY OF SIGNIFICANT ACCOUN47

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2017
Summary Of Significant Accounting Policies
Basis of preparation	a) Basis of preparation These Consolidated Financial Statements have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB) (hereinafter referred to as IFRS). For purposes of these financial statements we use certain terms and conventions. References to “US$”, “U.S. dollars” and “dollars” are to United States dollars, references to “EUR” are to European Economic Community Euro, references to “CNY” are to Chinese Yuan, references to “CHF” are to Swiss franc, references to “Chilean pesos”, “pesos” or “Ch$” are to Chilean pesos, and references to “UF” are to Unidades de Fomento. The UF is an inflation-indexed 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 UF is revalued in monthly cycles. Each day in the period beginning on the tenth day of the current month through the ninth day of the succeeding month, the nominal peso value of the UF is indexed up (or down in the event of deflation) in order to reflect a proportionate amount of the change in the Chilean Consumer Price Index during the prior calendar month. One UF is equaled to Ch$26,798.14 as of December 31, 2017 and Ch$26,347.98 as of December 31, 2016. In 2017, UF inflation was 2.3% compared to 2.7% in 2016. 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 Notes to the Consolidated Financial Statements contain additional information to support the figures submitted in the Consolidated Statement of Financial Position, Consolidated Statement of Income, Consolidated Statement of Comprehensive Income, Consolidated Statement of Changes in Equity and Consolidated Statement of Cash Flows for the period.
Basis of preparation for the Consolidated Financial Statements	b) Basis of preparation for the Consolidated Financial Statements The Consolidated Financial Statements for the years ended December 31, 2017, 2016 and 2015, incorporate the financial statements of the entities over which the Bank has control (including structured entities); and includes the adjustments, reclassifications and eliminations needed to comply with the accounting and valuation criteria established by IFRS. Control is achieved when the Bank: I. has power over the investee; II. is exposed, or has rights, to variable returns from its involvement with the investee; and III. has the ability to use its power to affect its returns. The Bank reassesses whether or not it controls an investee if facts and circumstances indicate that there are changes to one or more of the three elements of control listed above. When the Bank has less than a majority of the voting rights of an investee, it has power over the investee when the voting rights are sufficient to give it the practical ability to direct the relevant activities over the investee unilaterally. The Bank considers all relevant facts and circumstances in assessing whether or not the Bank’s voting rights in an investee are sufficient to give it power, including: · · · · Consolidation of a subsidiary begins when the Bank obtains control over the subsidiary and ceases when the Bank loses control over the subsidiary. Specifically, income and expenses of a subsidiary acquired or disposed of during the year are included in the Consolidated Statement of Income and in the Consolidated Statement of Comprehensive Income from the date the Bank gains control until the date when the Bank ceases to control the subsidiary. Profit or loss and each component of other comprehensive income are attributed to the owners of the Bank and to the non-controlling interests. Total comprehensive income of subsidiaries is attributed to the owners of the Bank and to the non-controlling interests even if this results in the non-controlling interests having a deficit in certain circumstances. When necessary, adjustments are made to the financial statements of the subsidiaries to ensure their accounting policies are consistent with the Bank’s accounting policies. All intragroup assets, liabilities, equity, income, expenses and cash flows relating to transactions between consolidated entities are eliminated in full on consolidation. Changes in the consolidated entities ownership interests in subsidiaries that do not result in a loss of control over the subsidiaries are accounted for as equity transactions. The carrying values of the Bank’s equity and the non-controlling interests’ equity are adjusted to reflect the changes to their relative interests in the subsidiaries. Any difference between the amount by which the non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to owners of the Bank. In addition, third parties’ shares in the Bank’s consolidated equity are presented as “Non-controlling interests” in the Consolidated Statement of Changes in Equity. Their share in the income for the year is presented as “Attributable to non-controlling interest” in the Consolidated Statement of Income. The following companies are considered entities controlled by the Bank and are therefore within the scope of consolidation: i. Entities controlled by the Bank through participation in equity Name of the Subsidiary Percent ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Direct Indirect Total Direct Indirect Total Direct Indirect Total Main Activity % % % % % % % % % Santander Corredora de Seguros Limitada Insurance brokerage Santiago, Chile 99.75 0.01 99.76 99.75 0.01 99.76 99.75 0.01 99.76 Santander Corredores de Bolsa Limitada(*) Financial instruments brokerage Santiago, Chile 50.59 0.41 51.00 50.59 0.41 51.00 50.59 0.41 51.00 Santander Agente de Valores Limitada Securities brokerage Santiago, Chile 99.03 - 99.03 99.03 - 99.03 99.03 - 99.03 Santander S.A. Sociedad Securitizadora Purchase of credits and issuance of debt instruments Santiago, Chile 99.64 - 99.64 99.64 - 99.64 99.64 - 99.64 The detail of non-controlling participation on all the remaining subsidiaries can be seen in Note 24– Non-controlling interest. ii. Entities controlled by the Bank through other considerations The following companies have been consolidated based on the determination that the Bank has control as previously defined above and in accordance with IFRS 10, Consolidated Financial Statements - Santander Gestión de Recaudación y Cobranza Limitada (collection services) - Bansa Santander S.A. (management of repossessed assets and leasing of properties) iii. Associates An associate is an entity over which the Bank has significant influence. Significant influence, in this case, is defined as the power to participate in the financial and operating policy decisions of the investee but is not control or joint control over those policies. An investment in an associate is accounted for using the equity method from the date on which the investee becomes an associate. The following companies are considered “Associates” in which the Bank accounts for its participation using the equity method: Percentage of ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Associates Main activity % % % Redbanc S.A. ATM services Santiago, Chile 33.43 33.43 33.43 Transbank S.A. Debit and credit card services Santiago, Chile 25.00 25.00 25.00 Centro de Compensación Automatizado Electronic fund transfer and compensation services Santiago, Chile 33.33 33.33 33.33 Sociedad Interbancaria de Depósito de Valores S.A. Delivery of securities on public offer Santiago, Chile 29.29 29.29 29.29 Cámara Compensación de Alto Valor S.A. Payments clearing Santiago, Chile 15.00 14.93 14.23 Administrador Financiero del Transantiago S.A. Administration of boarding passes to public transportation Santiago, Chile 20.00 20.00 20.00 Sociedad Nexus S.A. Credit card processor Santiago, Chile 12.90 12.90 12.90 Servicios de Infraestructura de Mercado OTC S.A. Administration of the infrastructure for the financial market of derivative instruments Santiago, Chile 12.07 12.07 11.11 In the case of Sociedad Nexus S.A. and Cámara Compensación de Pagos Alto Valor S.A., Banco Santander Chile has a representative on the Board of Directors. As per the definition of associates, the Bank has concluded that it exerts significant influence over those entities. During 2017, Rabobank Chile in liquidation process and Banco París, ceded to Banco Santander Chile a portion of its share in the company "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A.", thereby increasing the Bank's share. During the last quarter of 2016, Banco Penta ceded to Banco Santander Chile a portion of its share in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A." and "Servicios de Infraestructura de Mercado OTC S.A.", thereby increasing the Bank's share to 14.93% and 12.07% respectively. As of the ended (2016), Deutsche Bank ceded to Banco Santander Chile a portion of its share in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor S.A." and "Servicios de Infraestructura de Mercado OTC S.A.", thereby increasing the Bank's share to 14.84% and 11.93% respectively. At the Extraordinary Shareholders meeting held in April 21, 2016, Transbank S.A. agreed to increase its capital by capitalizing the accumulated profits, through the placement of shares for Ch$4,000 million approximately. Banco Santander Chile participated proportionally in its participation (25%), therefore subscribed and paid in for Ch$1,000 million. Previously, Transbank agreed to capital increase at an Extraordinary Shareholders' Meeting held in April 2015, Banco Santander subscribed to that agreement, maintaining its ownership. In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensación de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing its participation to 14.23%.
Non-controlling interest	c) Non-controlling interest Non-controlling interest represents the portion of net income and net assets which the Bank does not own, either directly or indirectly. It is presented as “Attributable to non-controlling interest” separately in the Consolidated Statement of Income, and separately from shareholders’ equity in the Consolidated Statement of Financial Position. In the case of entities controlled by the Bank through other considerations, income and equity are presented in full as non-controlling interest, since the Bank controls them, but does not have any ownership expressed as a percentage.
Reporting segments	d) Reporting segments Operating segments are components of an entity: i. that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses from transactions with other components of the same entity); ii. whose operating results are regularly reviewed by the entity’s chief executive officer, who makes decisions about resources allocated to the segment and assess its performance; and iii. for which discrete financial information is available. Two or more segments can be combined only if aggregation is consistent with International Financial Reporting Standard 8 “Operating Segments” (IFRS 8) and the segments have similar economic characteristics and are similar in each of the following respects: i. the nature of the products and services; ii. the nature of the production processes; iii. the type or class of customers that use their products and services; iv. the methods used to distribute their products or services; and v. if applicable, the nature of the regulatory environment, for example, banking, insurance, or public utilities. The Bank reports separately on each operating segment that exceeds any of the following quantitative thresholds: i. its reported revenue, from both external customers and intersegment sales or transfers, is 10% or more of the combined internal and external revenue of all the operating segments. ii. the absolute amount of its reported profit or loss is 10% or more of the greater in absolute amount of: (i) the combined reported profit of all the operating segments that did not report a loss; (ii) the combined reported loss of all the operating segments that reported a loss. iii. its assets represent 10% or more of the combined assets of all the operating segments. Operating segments that do not meet any of the quantitative threshold may be treated as segments to be reported, in which case the information must be disclosed separately if management believes it could be useful for the users of the Consolidated Financial Statements. Information about other business activities of the operating segments not separately reported is combined and disclosed in the “Other segments” category.
Functional and presentation currency	e) Functional and presentation currency According to International Accounting Standard (IAS) 21 “The Effects of Changes in Foreign Exchange Rates”, the Chilean peso, which is the currency of the primary economic environment in which the Bank operates and the currency which influences its costs and revenue structure, has been defined as the Bank’s functional and presentation currency. Accordingly, all balances and transactions denominated in currencies other than the Chilean Peso are treated as “foreign currency”. The Bank maintains its accounting records and prepares its financial statements in Chilean pesos. The US dollar amounts disclosed in the accompanying financial statements are presented solely for the convenience of the reader as of December 31, 2017 using the observed exchange rate of Ch$616.85 per US$1.00. Such translations should not be construed as representations that the (local currency) amounts represent, or have been or could be converted into, United States dollars at that or any other rate.
Foreign currency transactions	f) Foreign currency transactions The Bank makes transactions in amounts denominated in foreign currencies, mainly the U.S. dollar. Assets and liabilities denominated in foreign currencies, held by the Bank are translated to Chilean pesos based on the market rate published by Reuters at 1:30 p.m. representative of the month end reported; the rate used was Ch$616.85 per US$1 as of December 31, 2017 (Ch$666.00 per US$1 as of December, 2016). The amounts of net foreign exchange gains and losses includes recognition of the effects that exchange rate variations have on assets and liabilities denominated in foreign currencies and the profits and losses on foreign exchange spot and forward transactions undertaken by the Bank.
Definitions and classification of financial instruments	g) Definitions and classification of financial instruments 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 measurement purposes Financial assets are 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 are recognized and derecognized on a trade basis. Regular way purchases or sales of financial assets require delivery of the asset within the time frame established by regulation or convention in the marketplace. Financial assets are initially recognized at fair value plus, in the case of a financial assets not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition or issue. Effective interest method The effective interest method is a method of calculating the amortised 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 is recognised on an effective interest basis for loans and accounts receivables other than those financial assets classified as at fair value through profit or loss. Financial assets FVTPL - Trading investments Financial assets are classified as FVTPL when the financial asset is either held for trading or it is designated as at fair value through profit or loss. A financial asset is 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 are stated at fair value, with any gains or losses arising on remeasurement recognised in profit or loss. The net gain or loss recognised in profit or loss incorporates any dividend or interest earned on the financial asset and is included in the ‘net income (expense) from financial operations' line item. Held to maturity investments Held-to-maturity investments are non-derivative financial assets with fixed or determinable payments and fixed maturity dates that the Bank has the positive intent and ability to hold to maturity. Subsequent to initial recognition, held-to-maturity investments are measured at amortised cost using the effective interest method less any impairment. Available for sale investments (AFS investments) AFS investments are non-derivatives that are either designated as AFS or are 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). Financial instruments held by the Bank that are traded in an active market are classified as AFS and are stated at fair value at the end of each reporting period. The Bank also has investments in financial instruments that are not traded in an active market but that are also classified as AFS investments and stated at fair value at the end of each reporting period (because the Bank considers 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 are recognised in profit or loss. Other changes in the carrying amount of available for sale investments are recognised in other comprehensive income and accumulated under the heading of “Valuation Adjustment”. When the investment is disposed of or is determined to be impaired, the cumulative gain or loss previously accumulated in the investments revaluation reserve is reclassified to profit or loss. Dividends on AFS equity instruments are recognised in profit or loss when the Bank's right to receive the dividends is established. The fair value of AFS monetary financial assets denominated in a foreign currency is determined in that foreign currency and translated as the described in f) above. The foreign exchange gains and losses that are recognised in profit or loss are determined based on the amortised cost of the monetary asset. Loans and accounts receivable from customers Loans and accounts receivable from customers are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. Loans and accounts receivables from customers (including loans and accounts receivable from customers and interbank loans) are measured at amortised cost using the effective interest method, less any impairment. Interest income is recognised 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 are classified by their nature into the following line items in the Consolidated Financial Statements: - Cash and deposits in banks: this line includes 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 represents 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, etc. - Trading investments: this item includes 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: includes balances of financial instruments purchased under resale agreement. - Financial derivative contracts: financial derivative contracts with positive fair values are presented in this item. It includes both independent contracts as well as derivatives that should and can be separated from a host contract, whether they are for trading or accounted for as derivatives held for hedging, as shown in Note 7 to the Consolidated Financial Statements. · Trading derivatives: includes the fair value of derivatives which do not qualify for hedge accounting, including embedded derivatives separated from hybrid financial instruments. · Hedging derivatives: includes the fair value of derivatives designated as being in a hedging relationship, including the embedded derivatives separated from the hybrid financial instruments. - Interbank loans: this item includes 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. - Loans and accounts receivables from customers: these loans are non-derivative financial assets for which fixed or determined amounts are charged, that are not listed on an active market and which the Bank does not intend to sell immediately or in the short term. When the Bank is the lessor in a lease, and it substantially transfers the risks and rewards incidental to the leased asset, the transaction is presented in loans and accounts receivable from customers while the leased asset is derecognized in the Bank´s statement of financial position. - Investment instruments: are classified into two categories: held-to-maturity investments, and available-for-sale investments. The held-to-maturity investment classification includes only those instruments for which the Bank has the ability and intent to hold to maturity. The remaining investments are treated as available for sale. iv. Classification of financial liabilities for measurement purposes Financial liabilities are classified as either financial liabilities at FVTPL or other financial liabilities. Financial liabilities at FVTPL As of December 31, 2017 and 2016 the Bank does not maintain financial liabilities at FVTPL. Other financial liabilities Other financial liabilities (including interbank borrowings, issued debt instruments and other payables) are initially recorded at fair value and subsequently measured at amortised cost using the effective interest method. v. Classification of financial liabilities for presentation purposes The financial liabilities are classified by their nature into the following line items in the consolidated statements of financial position: - Deposits and other on- demand liabilities: this includes all on-demand obligations except for term savings accounts, which are not considered on-demand instruments in view of their special characteristics. Obligations whose payment may be required during the period are deemed to be on-demand obligations. Operations which become callable the day after the closing date are not treated as on-demand obligations. - Cash items in process of being cleared: this represents 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 includes the balances of sales of financial instruments under securities repurchase and loan agreements. The Bank does not record in its own portfolio instruments acquired under repurchase agreements. - Time deposits and other time liabilities: this shows the balances of deposit transactions in which a term at the end of which they become callable has been stipulated. - Financial derivative contracts: this includes financial derivative contracts with negative fair values (i.e. a liability of the Bank), whether they are for trading or for hedge accounting, as set forth in Note 7. · Trading derivatives: includes the fair value of derivatives which do not qualify for hedge accounting, including embedded derivatives separated from hybrid financial instruments. · Hedging derivatives: includes the fair value of derivatives designated as being in a hedging relationship, including the embedded derivatives separated from the hybrid financial instruments. - Interbank borrowings: this includes 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 includes 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.
Valuation of financial instruments and recognition of fair value changes	h) Valuation of financial instruments and recognition of fair value changes 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. “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 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 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. 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. As of December 31, 2017, CVA and DVA amounts to MCh$8,142 and MCh$15,406, respectively. “Loans and accounts receivable from customers” and Held-to-maturity instrument portfolio are measured at amortized cost using the effective interest method. Amortized cost is the acquisition cost of a financial asset or liability, plus or minus, as appropriate, prepayments of principal and the cumulative amortization (recorded in the consolidated income statement) of the difference between the initial cost and the maturity amount as calculated under the effective interest method. For financial assets, amortized cost also includes any reductions for impairment or uncollectibility. For loans and accounts receivable designated as hedged items in fair value hedges, the changes in their fair value related to the risk or risks being hedged are recorded in “Net income (expense) from financial operations”. The “effective interest rate” is the discount rate that exactly matches the initial amount of a financial instrument to all its estimated cash flows over its remaining life. For fixed-rate financial instruments, the effective interest rate incorporates the contractual interest rate established on the acquisition date plus, where applicable, the fees and transaction costs that are a part of the financial return are included. For floating-rate financial instruments, the effective interest rate matches the current rate of return until the date of the next review of interest rates. 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. 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, 2017 and 2016 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. iii. Hedging transactions 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: 1. The derivative hedges one of the following three types of exposure: 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”). 2. It is effective in offsetting exposure inherent in the hedged item or position throughout the expected term of the hedge, which means that: 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”). 3. 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. 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 Statement of Income under “Net income (expense) from financial operations”. If a derivative designated as a hedging instrument no longer meets the requirements 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. 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 Statement 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. iv. Offsetting of financial instruments Financial asset and liability balances are offset, i.e., reported in the Consolidated Statements of Financial Position at their net amount, only if there is a legally enforceable right to offset the recorded amounts and the Bank intends either to settle them on a net basis or to realize the asset and settle the liability simultaneously. As of December 31, 207 and 2016 the Bank does not have balance offsetting of financial instruments. v. Derecognition of financial assets and liabilities The accounting treatment of transfers of financial assets is 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 transfers 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 does not retain subordinated debt nor grants any credit enhancement to the new holders, and other similar cases, the transferred financial asset is derecognized from the Consolidated Statement of Financial Position and any rights or obligations retained or created in the transfer are simultaneously recorded. ii. If the Bank retains 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 undertakes to return the same or similar assets, and other similar cases, the transferred financial asset is not derecognized from the Consolidated Statement of Financial Position and continues to be measured by the same criteria as those used before the transfer. However, the following items are recorded: - An associated financial liability for an amount equal to the consideration received; this liability is 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 transfers nor substantially retains 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 is not deeply in or out of the money, securitization of assets in which the transferor retains a subordinated debt or other type of credit enhancement for a portion of the transferred asset, and other similar cases—the following distinction is made: If the transferor does not retain control of the transferred financial asset: the asset is derecognized from the Consolidated Statement of Financial Position and any rights or obligations retained or created in the transfer are recognized. b. If the transferor retains control of the transferred financial asset: it continues to be recognized in the Consolidated Statement 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 is the amortized cost of the rights and obligations retained, if the transferred asset is measured at amortized cost, or the fair value of the rights and obligations retained, if the transferred asset is measured at fair value. Accordingly, financial assets are only derecognized from the Consolidated Statement of Financial Position when the rights over the cash flows they generate have terminated or when all the inherent risks and rewards of ownership have been substantially transferred to third parties. Similarly, financial liabilities are only derecognized from the Consolidated Statement of Financial Position when the obligations specified in the contract are discharged or cancelled or the contract has matured.
Recognizing income and expenses	i) Recognizing income and expenses The most significant criteria used by the Bank to recognize its revenues and expenses are summarized as follows: i. Interest revenue, interest expense, and similar items Interest revenue and expense are recorded on an accrual basis using the effective interest method. ii. Commissions, fees, and similar items Fee and commission income and expenses are recognized in the Consolidated Statement of Income using criteria that vary according to their nature. The main criteria are: - Fee and commission income and expenses on financial assets and liabilities are recognized when they are earned. - Those arising from transactions or services that are performed over a period of time are recognized over the life of these transactions or services. - Those relating to services provided in a single transaction are recognized when the single transaction is performed. iii. 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.
Impairment	j) Impairment i. Financial assets: A financial asset, other than that at fair value through profit and loss, is evaluated on each financial statement filing date to determine whether objective evidence of impairment exists. 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. Individually significant financial assets are individually tested to determine their impairment. The remaining financial assets are evaluated collectively in groups that share similar credit risk characteristics. 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. ii. Non-financial assets: The Bank’s non-financial assets, are reviewed at the 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. 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. 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. 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.
Property, plant, and equipment	k) Property, plant, and equipment This category includes the amount of buildings, land, furniture, vehicles, computer hardware and other fixtures owned by the consolidated entities or acquired under finance leases. Assets are classified according to their use as follows: i. Property, plant and equipment for own use 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 amount was higher than recoverable 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. The Bank applies the following useful lives for the tangible assets that comprise its assets: ITEM Useful life (Months) Land - Paintings and works of art - Carpets and curtains 36 Computers and hardware 36 Vehicles 36 IT systems and software 36 ATMs 60 Other machines and equipment 60 Office furniture 60 Telephone and communication systems 60 Security systems 60 Rights over telephone lines 60 Air conditioning systems 84 Other installations 120 Buildings 1,200 The consolidated entities assess at each reporting date whether there is any indication that the carrying amount of any tangible asset exceeds its recoverable amount. If this is the case, the carrying amount of the asset is reduced to its recoverable amount and future depreciation charges are adjusted in accordance with the revised carrying amount and to the new remaining useful life. The estimated useful lives of the items of property, plant and equipment held for own use are reviewed at the end of each reporting period to detect significant changes. If changes are detected, the useful lives of the assets are adjusted by correcting the depreciation charge to be recorded in the Consolidated Statement of Income in future years on the basis of the new useful lives. Maintenance expenses relating to tangible assets held for own use are recorded as an expense in the period in which they are incurred. ii. Assets leased out under operating leases 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.
Leasing	l) Leasing 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 recognized as lending to third parties under “Loans and accounts receivable from customers” in the Consolidated Statement 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 Statement 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, the finance income and expenses arising from these contracts are recorded under “Interest income” and “Interest expense” respectively, in Consolidated Statement of Income to achieve constant return rate over the lease term. ii. Operating leases In operating leases, ownership of the leased asset and substantially all the risks and rewards incidental thereto remain with the lessor. When the consolidated entities act as 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 is 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 sale except in the case of excess of proceeds over fair value, which difference 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.
Intangible assets	m) 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. 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. 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. Intangible assets are amortized on a straight-line basis over their estimated useful life; which has been defined as 36 months. Expenditure on research activities is recorded as an expense in the year in which it is incurred and cannot be subsequently capitalized.
Cash and cash equivalents	n) Cash and cash equivalents 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. For the preparation of the cash flow statement, the following items are considered: i. 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. ii. Operating activities: Principal revenue-producing activities performed by banks and other activities that cannot be classified as investing or financing activities. The Bank's activity of granting loans encompasses not only the activities with its debtors but also the related activities that provide the funding to the loans granted. Since the funding for granting such loans is provided by, among other sources, senior bonds, mortgage bonds and subordinated bonds, the Bank presents the related cash flows as operating activities. iii. Investing activities: The acquisition and disposal of long-term assets and other investments not included in cash and cash equivalents. iv. Financing Activities: Activities that result in changes in the size and composition of the equity and liabilities that are not operating activities.
Allowances for loan losses	o) Allowances for loan losses The Bank has established allowances to cover incurred losses on loans and account receivables from customers in accordance with its internal models and risk assessment as approved by the Board of Directors. The Bank performs an assessment of the risk associated with loans and accounts receivable from customers to determine their allowance for loan losses as described below: - Individual assessment – represents cases where the Bank assesses a debtor as individually significant, or when he/she cannot be classified within a group of financial assets with similar credit risk characteristics, due to their size, complexity or level of exposure. - Group assessment - a group assessment is relevant for analyzing a large number of operations with small individual balances from individuals or small companies. The Bank groups debtors with similar credit risk characteristics giving to each group a default probability and recovery rate based on a historical analysis. The Bank models determine allowances and provisions for loan losses according to the type of portfolio or operations. Loans and accounts receivables from customers are divided into three categories: i. Commercial loans, ii. Mortgage loans, and iii. Consumer loans. The models used to determine credit risk allowances are described as follows: I. Allowances for individual assessment An individual assessment of commercial debtors is necessary in the case of companies which, due to their size, complexity or level of exposure regarding the entity, must be known and analyzed in detail. For the purposes of establishing its provisions, the Bank assigns a risk category to each debtor, their loans and contingent loans. The risk factors considered are: industry or economic sector of the borrower, owners or managers of the borrower, their financial situation and payment capacity, and payment behavior. The Bank’s risk categories are as follows: 1. Debtors may be classified in risk categories A1, A2, A3 or B (if they are current on their payment obligations and show no sign of deterioration in their credit quality). B is different from the A categories by a certain history of late payments. The A and B categories are distinguished by different PNPs (as defined below). 2. Debtors classified as C1, C2, C3, C4, D1 or D2 include debtors whose loans with us have been charged off or administered by our Recovery Unit, or classified as Precontenciosos (PRECO or deteriorated). For loans classified as A1, A2, A3 and B, we assign a specific provision level on an individual basis to each borrower and, therefore, the amount of loan loss allowance is determined on a case by case basis. Estimated Incurred Loan Loss = Loan Loss Allowance. The estimated incurred loss is obtained by multiplying all risk factors defined in the following equation: EIL= EXP x PNP x SEV EIL = Estimated Incurred Loan Loss. The estimated incurred loan loss is how much could be lost in the event a debtor does not perform the obligations under the loan. EXP = Exposure. This corresponds to the value of commercial loans. PNP = Probability of Non-Performance. This variable, expressed as a percentage, indicates the probability that a debtor will default. This percentage is associated with the internal rating that we give to each debtor, which is determined by analyzing such parameters as debt servicing capacity (including, usually, projected cash flows), the company’s financial history, the solvency and capacity of shareholders and management, and projections for the economic sector in which it operates. SEV = Severity. This is the effective loss rate given default for debtors in the same segment, which is determined statistically based on the historical effective losses for each segment. Every year, models together with PNP and SEV assumptions, are tested by the Bank’s Credit Risk Department, to ensure that they are appropriate at each reporting date so as to make sure any difference between the estimated incurred losses and actual losses is reduced. These tests focus on the validation of the sufficiency of the Bank’s allowances, and consist of comparisons between actual write-offs to allowances established by the model, and the coverage of the total allowance to actual write-offs in the most current periods. Individual loan classification and improvements to any customer classification are also presented for approval to our Risk Committee. For loans classified in the C and D categories, loan loss allowances are based mainly on the fair value of the collateral, adjusted for an estimated cost to sell, that each of these loans have. Allowance percentage for each category is then based on the fair value of the collateral, or the expected future cash flow from the loan for each individually evaluated non-performing loans. II. Allowances for group assessments The Bank uses the concept of estimation of incurred loss to quantify the allowances levels over the group-evaluated portfolios, considering the risk and the guarantees associated with each transaction. Following the Bank’s definition, the Bank uses group evaluation to approach transactions that have similar credit risk features, which indicate the debtor’s payment capacity over the entire debt, principal and interests, pursuant to the contract’s terms. In addition, this allows us to assess a high number of transactions with low individual amounts, whether they belong to individuals or SMEs (small and medium sized companies). Therefore, debtors and loans with similar features are grouped together and each group has a risk level assigned to it. These models are meant to be used mainly to analyze loans granted to individuals (including consumer loans, credit lines, mortgage loans and commercial loans) and commercial loans to small to middle-sized entities (SMEs). Allowances are established using these models, taking into account the historical Impairment and other known circumstances at the time of evaluation. After this, a historical loss rate is assigned to each portfolio profile constituting each evaluated group. Allowances for group-evaluated loans are established based on the credit risk of the profile to which the loan belongs. The method for assigning a profile is established based on statistical building method, establishing a relation through logistic regression of various variables, such as payment behavior in the Bank, payment behavior outside the Bank, various sociodemographic data, among others, and a response variable that determines a client’s risk level, which in this case is 90 days of non-performance (the chosen features are relevant when calculating future cash flows per group of assets). Afterwards, common profiles are established and with differentiated default rates, applying the real historical loss the Bank has had with that portfolio. The different risk categories are constructed and updated periodically based on the payment behavior of the client’s profile to which they belong, as well as his or her sociodemographic characteristics. Therefore, when a customer has past due balance or has missed some payments, the outcome is that the customer will move to a different segment with a higher loss rate, therefore capturing current trends for each risk profile. Allowance quantification, once the customers have been classified, is the product of three factors: exposure (EXP), Probability of Non-Performance (PNP) and Severity (SEV), the same equation used for individual assessment mentioned above. The estimated incurred loss rates for group-evaluated loans correspond to charge-offs net of recoveries. The methodology establishes the period in which the estimated incurred loss for each risk profile emerges. Once the loss has been considered to have been incurred, the estimated incurred loss rates are applied to the corresponding risk profile to obtain the net charge-off level associated with this period. The loss rates applied to each risk profile are based only on the historical net charge-off data for that specific profile within one of the four groups of loans (consumer loans, credit lines, mortgage loans and commercial loans). No other statistical or other information other than net charge-offs is used to determine the loss rates. To determine the estimated incurred loss for commercial and mortgage loans collectively evaluated for impairment, we mainly analyze the payment behavior of clients, particularly the payment behavior of clients with payments that are more than 90 days overdue, clients with other weaknesses, such as early non performance (i.e., payments that are past-due, though by less than 90 days), clients with modified loans and clients with renegotiated loans, as well as success in recovery against these clients. We also take into account whether the loan is supported by collateral. In connection with mortgage loans, historical net charge-offs are considered in the model to calculate loss rates for loans collectively evaluated for impairment. The risk categories are such that when a customer has a past-due balance or has missed some payments, the outcome is that the customer will move to a different risk category with a higher loss rate, therefore capturing current trends of the customer and, when aggregate, current trends in the market. Our models for loans analyzed on a group basis (consumer loans, residential mortgage loans and small-and-mid- sized commercial loans) are monitored on a monthly basis with respect to predictability and stability, using indicators that seek to capture the underlying need to update the models for current loss trends. Therefore, the periods of historical net charge-offs used in the allowance model may be more than a year old as we only update the historical net charge-offs when our assessment of predictability and stability indicators determine it is necessary. III. Charge-offs As a general rule, charge-offs should be done when all collection efforts have been exhausted. These charge-offs consist of derecognition from the Consolidated Statement of Financial Position of the corresponding loans operations in its entirety, and, therefore, include portions not past-due of a loan in the case of installments loans or leasing operations (no partial charge-offs exist). Subsequent payments obtained from charged-off loans will be recognized in the Consolidated Statement of Income as a recovery of loans previously charged-off. Loan and accounts receivable charge-offs are recorded for overdue and current installments based on the time periods expired since reaching overdue status, as described below: Type of loan Term Consumer loans with or without collateral 6 months Other transactions without collateral 24 months Commercial loans with collateral 36 months Mortgage loans 48 months Consumer leasing 6 months Other non-mortgage leasing transactions 12 months Mortgage leasing (household and business) 36 months IV. Recovery of loans previously charged off and accounts receivable from customers Any payment agreement of an already charged-off loan will not give rise to income—as long as the operation is still in an impaired status—and the effective payments received are accounted for as a recovery from loans previously charged-off. Recovery of previously charged-off loans and accounts receivable from customers, are recorded in the Consolidated Statement of Income as a deduction from provisions for loan losses. In accordance with our charge-off policy described in iii) above, we may subsequently recover a portion of the amount charged-off (at 100%). The allowance for loan losses on our collectively evaluated loans incorporates an expected recovery rate based on historical information. At the time we charge-off the carrying amount of any loans which have been collectively evaluated for impairment, the allowance for loan losses on collectively evaluated loans is replenished to reflect incurred losses based on statistical models developed in compliance with IAS 39 on the remaining pool of loans. The amounts required for replenishment are recorded in the financial statements as provision established.
Provisions, contingent assets, and contingent liabilities	p) Provisions, contingent assets, and contingent liabilities Provisions are liabilities of uncertain timing or amount. Provisions are recognized in the Consolidated Statements of Financial Position when the Bank: i. has a present obligation (legal or constructive) as a result of past events, and ii. it is probable that an outflow of resources will be required to settle these obligations and the amount of these resources can be reliably measured. Contingent assets or contingent liabilities are any potential rights or obligations arising from past events whose existence will be confirmed only by the occurrence or non-occurrence if one or more uncertain future events that are not wholly within control of the Bank. The Consolidated Statement of Financial Position and annual accounts reflect all significant provisions for which it is estimated that it is probable an outflow of resources will be required to meet the obligation where the probability of having to meet the obligation is more likely than not. Provisions are quantified using the best available information on the consequences of the event giving rise to them and are reviewed and adjusted at the end of each year. Provisions must specify the liabilities for which they were originally recognized. Partial or total reversals are recognized when such liabilities cease to exist or are reduced. Provisions are classified according to the obligation covered as follows: - Provision for employee salaries and expenses - Provision for mandatory dividends - Provision for contingent credit risks - Provisions for contingencies
Deferred income taxes and other deferred taxes	q) Deferred income taxes and other deferred taxes 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.
Use of estimates	r) Use of estimates The preparation of the financial statements requires the Bank’s management to make estimates and assumptions that affect the application of the accounting policies and the reported balances of assets, liabilities, revenues and expenses. Actual results may differ from these estimates. In certain cases, International Financial Reporting Standards (IFRS) require that assets or liabilities be recorded or disclosed at their fair values. The fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When available, quoted market prices in active markets have been used as the basis for measurement. When quoted market prices in active markets are not available, the Bank has estimated such values based on the best information available, including the use of modeling and other valuation techniques. The Bank has established allowances to cover incurred losses to estimate allowances. 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. The relevant estimates and assumptions made to calculate provisions are regularly reviewed by the Bank’s Management to quantify certain assets, liabilities, revenues, expenses, and commitments. These estimates, made on the basis of the best available information, mainly refer to: - Impairment losses of certain assets (Notes 7, 8, 9, 10, and 32) - The useful lives of tangible and intangible assets (Notes 12, 13 and 32) - The fair value of assets and liabilities (Notes 5, 6, 7, 10 and 36) - Commitments and contingencies (Note 22) - Current and deferred taxes (Note 14)
Non-current assets held for sale (in "Other Assets")	s) 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. 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 the 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 period, 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 (assuming a forced sale). The difference between the carrying value of the asset and the estimated fair value less costs to sell is charged to net income for the period, under “Other operating expenses”. The result obtained in the sale of the asset is subsequently recorded under “Other operating income”. Independent appraisals are obtained at least every 18 months and fair values are adjusted accordingly. No adjustments have been made between appraisals with respect to the period covered by these financial statements considering the stability of the real estate market in Chile during past years and expected stability of the real estate market in the coming years. At least once a year, the Bank performs the necessary analysis to update the “cost to sale” of assets received or awarded in lieu of payments. According to the Bank’s survey, as of December 31, 2017 the average cost to sale was estimated at 3.4% of the appraisal value (5.1% as of December 31, 2016).
Earnings per share	t) 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, 2017 and 2016 the Bank did not have any instruments that generated dilution.
Temporary acquisition (assignment) of assets and liabilities	u) Temporary acquisition (assignment) of assets and liabilities Purchases or sales of financial assets under non-optional repurchase agreements at a fixed price are recorded in the Consolidated Statements of Financial Position based on the nature of the debtor (creditor) under “Deposits in the Central Bank of Chile,” “Deposits in financial institutions” or “Loans and accounts receivable from customers” (“Central Bank of Chile deposits,” “Deposits from financial institutions” or “Customer deposits”), in Note 6. Differences between the purchase and sale prices are recorded as financial interest over the term of the contract.
Provision for mandatory dividends	v) Provision for mandatory dividends As of December 31, 2017 and 2016 the Bank recorded a provision for mandatory dividends. This provision is made pursuant to Article 79 of the Corporations Act, which is in accordance with the Bank’s internal policy, pursuant to which at least 30% of net income for the period is distributed, except in the case of a contrary resolution adopted at the respective shareholders’ meeting by unanimous vote of the outstanding shares. 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 with offset to Provisions.
Employee benefits	w) Employee benefits i. Post-employment benefits – Defined Benefit Plan: According to current collective labor agreements and other agreements, the Bank has an additional benefit available to its principal executives, consisting of a pension plan whose purpose is to endow them with funds for a better supplementary pension upon their retirement. Features of the Plan: The main features of the Post-Employment Benefits Plan promoted by the Banco Santander Chile are: a. Aimed at the Bank’s management. b. The general requirement to apply for this benefit is that the employee must be carrying out his/her duties when turning 60 years old. c. The Bank will create a pension fund, with life insurance, for each beneficiary in the plan. Periodic contributions into this fund are made by the manager and matched by the Bank. d. The Bank will be responsible for granting the benefits directly. The Bank uses the method of projected unit credit, to determine the present value of the defined benefit obligation and the current service cost. Components of defined benefit cost include: - current service cost and any past service cost, which are recognized in profit or loss for the period; - net interest on the liability (asset) for net defined benefit, which is recognized in profit or loss for the period; - new liability (asset) remeasurements for net defined benefit include: (a) actuarial gains and losses; (b) the difference between the actual return on plan assets and the interest on plan assets included in the net interest component and; (c) changes in the effect of the asset ceiling. The liability (asset) for net defined benefit is the deficit or surplus, determined as the difference between the present value of the defined benefit obligation less the fair value of plan assets. Plan assets comprise the pension fund taken out by the Group with a third party that is not a related party. These assets are held by an entity legally separated from the Bank and exist solely to pay benefits to employees. The Bank recognizes the present service cost and the net interest of the Personnel salaries and expenses on the Consolidated Statement of Income. The post-employment benefits liability, recognized in the Consolidated Statement of Financial Position represents the deficit or surplus in the defined benefit plans of the Bank. Any surplus resulting from the calculation is limited to the present value of any economic benefits available in the form of refunds from the plan or reductions in future contributions. When employees leave the plan before meeting the requirements to be eligible for the benefit, contributions made by the Bank are reduced. ii. Cash-settled share based compensation The Bank allocates cash-settled share based compensation to executives of the Bank and its Subsidiaries in accordance with IFRS 2. The Bank measures the services received and the obligation incurred at fair value. Until the obligation is settled, the Bank determines the fair value at the end of each reporting period, as well as at the date of settlement, recognizing any change in fair value in the income statement of the period.
Application of new and revised International Financial Reporting Standards	x) Application of new and revised International Financial Reporting Standards i. New and revised standards effective in current year The following new and revised IFRS have been adopted in these financial statements: Recognition of Deferred Tax Assets for Unrealized Losses (Amendments to IAS 12) · Unrealized losses on debt instruments measured at fair value and measured at cost for tax purposes give rise to a deductible temporary difference regardless of whether the debt instrument’s holder expects to recover the carrying amount of the debt instrument by sale or by use. · The carrying amount of an asset does not limit the estimation of probable future taxable profits. · Estimated for future taxable profits exclude tax deductions resulting from the reversal of deductible temporary differences. · An entity assesses a deferred tax asset in combination with other deferred tax assets. Where tax law restricts the utilization of tax losses, an entity would assess a deferred tax asset in combination with other deferred tax assets of the same type. The amendments are effective for annual periods beginning on or after January 1, 2017. The implementation of this amendments did not have material impact on the consolidated financial statement of the Bank. Disclosure Initiative (Amendments to IAS 7)- The amendments are effective for annual periods beginning on or after January 1, 2017. Earlier application is permitted. The implementation of this amendments did not have material impact on the consolidated financial statement of the Bank. Annual Improvement 2014-2016 This annual improvements issued in December 8, 2016, containing the following amendments: IFRS 12 Disclosure of Interests in Other Entities The amendments to IFRS 12 for annual periods beginning on or after 1 January 2017. The implementation of IFRS 12 amendments did not have material impact on the consolidated financial statement of the Bank. IFRS Practice statement 2 Making Materiality Judgement – The Bank’s management has considered this practice statement in preparing current financial statements. ii. New and revised IFRS issued but not effective IFRS 9 Financial instruments (2014) Classification &measurement: IFRS 9 defined the financial asset and certain non-financial assets purchases agreements classification and measurement model changes requirements. The main aspects included in the new standard are: a) Classification of financial instruments: The criterion for classifying financial assets will depend both on their business management model and the features of the contractual flows. Consequently, the asset will be measured at amortized cost, at fair value with changes in other comprehensive income (equity), or at fair value with changes in profit and loss for the period. IFRS 9 also establishes the option of designating an instrument at fair value with changes in Profit and loss under certain conditions. The main activity of the Bank is the concession of retail banking operations and does not concentrate its exposure on complex financial products. The main objective of the Bank is to achieve a homogeneous implementation of the classification of financial instruments of the portfolios established under IFRS 9 and, for this purpose, it has developed standardized guidelines to enable a homogeneous analysis in all of its units. The Bank prepared an analysis of its portfolios under the mentioned guidelines in order to identify and classify the financial instruments into their corresponding portfolio under IFRS 9. Based on the analysis currently being carried out, the Group considers that: · · · · In October 12, 2017, the IASB issued “Prepayment features with negative compensation” to address particular prepaid options under assessment whether contractual clash flows are solely payments of principal and interest. The Bank concluded that this amendment does not have significant impact over its financial statements. b) Credit risk Impairment model: The most important new development compared with the current model is that the new accounting standard introduces the concept of expected loss, whereas the current model (IAS 39) is based on incurred loss. · · · · · - Phase 1: a financial instrument will be considered to be in this phase when there has been no significant increase in risk since its initial recognition. In this case, the value correction will reflect expected credit losses arising from defaults over the 12 months from the reporting date. - Phase 2: financial instruments are included in this phase when there has been a significant increase in risk since the date of initial recognition, but the impairment has not materialized. In this case, the value correction for losses will reflect the expected losses from defaults over the residual life of the financial instrument. The existence of a significant increase in credit risk will be determined by considering the quantitative indicators used in the ordinary management of credit risk, together with other qualitative variables, such as the indication of whether refinanced transactions are considered non-impaired and transactions included in special debt sustainability agreements. - Phase 3: financial instruments are catalogued in this phase when they show effective signs of impairment as a result of one or more events that have already occurred that will result in a loss. In this case, the amount of the value correction will reflect the expected losses for credit risk over the expected residual life of the financial instrument. The methodology required for quantification of expected loss for credit events will be based on an unbiased and weighted consideration of the occurrence of a range of possible future scenarios that could impact the collection of contractual cash flows, taking into account the time-value of money, all available information relevant to past events, and current conditions and projections of macroeconomic factors deemed relevant to the estimation of this amount. The assessment of whether a significant increase in credit risk has occurred since initial recognition involves the application of both quantitative measures and qualitative factors, requires management judgement and is a key aspect of the IFRS 9 methodology. The key inputs into the measurement of the ECL (expected credit loss) are EAD (exposure at default), PD (probability of default) and LGD (loss given default). These parameters will be derived from internally developed statistical models and other historical data that leverage regulatory models. They will be adjusted to reflect forward-looking information. The Bank has focused in developing an “expected credit loss” model in accordance with all IFRS 9 requirements, including all essential definitions: · Significant increase in credit risk · Default · Forward-looking information: the Bank has incorporated forward-looking information into both its assessment of whether the credit risk of an instrument has increased significantly since initial recognition and its measurement of ECLs. Following this, the Bank has developed macroeconomic scenarios and considers the relative probability of each outcome. External information include macroeconomic factor as PIB , among others. · Financial assets expected lives: the Bank considers contractual terms of the instruments (amortization, prepayments features, extension terms, etc.). The bank will measure ECLs considering the risk of default over the maximum contractual period. For certain revolving facilities (e.g. credit card and overdraft), the expected lives is the credit risk exposure period and credit risk management actions that the Bank expects to take and that serve to mitigate ECLs. · Impairment records: IFRS 9 bring a changes related to the FVOCI financial assets, where the amount of the change in the fair value that is attributable to changes in the credit risk of the financial asset will be presented in other comprehensive income, and the remaining amount of the change in the fair value will be presented in profit or loss. c) Hedge accounting: The general hedge accounting requirements align more closely with risk management practices and establish a more principle-based approach thereby allowing hedge accounting to be applied to a wider variety of hedging instruments and risks. Macro hedge accounting is being dealt with as a separate project. Until such time as that project is complete, and to remove any potential conflict between any existing macro hedge accounting undertaken under IAS 39 and the new general hedge accounting requirements of IFRS 9, entities can choose to continue to apply the existing hedge accounting requirements in IAS 39. After concluding the IFRS 9 implementation process, the most significant impact on the Bank´s financial statements arise from the new impairment requirements. Impairment losses for financial instruments will be increased under the scope of the IFRS 9 impairment model. At January 1, 2018, based on the assessment made, the total impact in equity (net of tax) derived from the adoption of IFRS 9 is Ch$82,454 million(net of tax). IFRS 15, Revenue from Contracts with Customers - IFRS 15 must be applied in an entity’s first annual IFRS financial statements for periods beginning on or after 1 January 2017. Application of the Standard is mandatory and early adoption is permitted. An entity that chooses to apply IFRS 15 earlier than 1 January 2018 must disclose this fact. In April 12, 2016, the IASB published an amendments to clarify and provide alternatives for the transition. The amendment are applicable from January 1, 2018, with early application permitted. The Bank completed its assessment regarding the application of this standard and concluded that it does not have a significant impact over its consolidated financial statements. Sale or Contributions of Assets between an Investor and its Associate or Joint Venture (Amendments to IFRS 10 and IAS 28) - · requires full recognition in the investor's financial statements of gains and losses arising on the sale or contribution of assets that constitute a business (as defined in IFRS 3 Business Combinations); · requires the partial recognition of gains and losses where the assets do not constitute a business, i.e. a gain or loss is recognized only to the extent of the unrelated investors’ interests in that associate or joint venture. On December 17, 2015 the IASB has published final amendments to “Sale or Contribution of Assets between an Investor and its Associate or Joint Venture”. The amendments defer the effective date of the September 2014 amendments to these standards indefinitely until the research project on the equity method has been concluded. The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. IFRS 16 Leases IFRS 16 is effective for periods beginning on or after January 1, 2019, with earlier adoption permitted if IFRS 15 “Revenue from Contracts with Customer” has also been applied. The Bank has completed its operating lease contract inventory (as lessee) and it is currently determining the potential impact that the standard will have on the consolidated financial statements of the Bank. Amendments to IFRS 2 Classification and measurement of share-based payment transactions · · · This standard is applicable from January 1, 2018, with early application permitted. Management is assessing the potential impact of applying this standard. Amendments to IFRS 4: Applying IFRS 9 Financial Instruments with IFRS 4 Insurance Contracts - -an option that permits entities to reclassify, from profit or loss to other comprehensive income, some of the income or expenses arising from designated financial assets (the "overlay approach"); -an optional temporary exemption from applying IFRS 9 for entities whose predominant activity is issuing contracts within the scope of IFRS 4 (the "deferral approach"). An entity would apply the overlay approach retrospectively to qualifying financial assets when it first applies IFRS 9 while an entity would apply the deferral approach for annual periods beginning on or after January 1, 2018. Management has assessed that the implementation of these modifications will not have a material impact on the Unaudited Consolidated Interim Financial Statements of the Bank. IFRIC 22 Foreign Currency Transactions and Advance Consideration – The Interpretation covers foreign currency transactions when an entity recognises a non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration before the entity recognises the related asset, expense or income. It does not apply when an entity measures the related asset, expense or income on initial recognition at fair value or at the fair value of the consideration received or payed at a date other than the date of initial recognition of the non-monetary asset or non-monetary liability. Also, the Interpretation need not be applied to income taxes, insurance contracts or reinsurance contracts. Consensus The date of the transaction, for the purpose of determining the exchange rate, is the date of initial recognition of the non-monetary prepayment asset or deferred income liability. If there are multiple payments or receipts in advance, a date of transaction is established for each payment or receipt. IFRIC 22 is effective for annual reporting periods beginning on or after 1 January 2018. Earlier application is permitted. The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. Annual Improvement 2014-2016 This annual improvements issued in December 8, 2016, containing the following amendments: IFRS 1 First time adoption of IFRS IAS 28 Investments in Associates and Joint Ventures The amendments to IFRS 1 and IAS 28 are effective for annual periods beginning on or after 1 January 2018. The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. IFRS 17 Insurance contracts – The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. IFRIC 23 Uncertainty over Income Tax Treatments – The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. Amendments to IAS 28 long-term interest in Associates and Joint Ventures - The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank. Annual Improvements to IFRS Standards 2015–2017 Cycle This annual improvements issued in December 12, 2017, containing the following amendments: IFRS 3 Business Combination and IFRS 11 Joint Arrangements – The amendments to IFRS 3 clarify that when an entity obtains control of a business that is a joint operation, it remeasures previously held interests in that business. The amendments to IFRS 11 clarify an entity obtains joint control of a business that is a joint operation, the entity does not remeasure previously held interest in that business. IAS 12 Income taxes – The amendments clarify that all income tax consequences of dividends should be recognized in profit or loss, regardless of how the tax arises. IAS 23 Borrowing cost – The amendments clarify that if any specific borrowing remain outstanding after the related asset is ready for its intended use or sale, that borrowing becomes part of the funds that an entity borrows generally when calculating the capitalization rate on general borrowings. The amendments are effective for periods beginning on or after January 1, 2019, early application is permitted. The Bank’s management has considered that these amendments will not have material impact on the consolidated financial statements of the Bank.

SUMMARY OF SIGNIFICANT ACCOUN48

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	Dec. 31, 2017
Summary Of Significant Accounting Policies
Schedule of subsidiaries	The following companies are considered entities controlled by the Bank and are therefore within the scope of consolidation: i. Entities controlled by the Bank through participation in equity Name of the Subsidiary Percent ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Direct Indirect Total Direct Indirect Total Direct Indirect Total Main Activity % % % % % % % % % Santander Corredora de Seguros Limitada Insurance brokerage Santiago, Chile 99.75 0.01 99.76 99.75 0.01 99.76 99.75 0.01 99.76 Santander Corredores de Bolsa Limitada(*) Financial instruments brokerage Santiago, Chile 50.59 0.41 51.00 50.59 0.41 51.00 50.59 0.41 51.00 Santander Agente de Valores Limitada Securities brokerage Santiago, Chile 99.03 - 99.03 99.03 - 99.03 99.03 - 99.03 Santander S.A. Sociedad Securitizadora Purchase of credits and issuance of debt instruments Santiago, Chile 99.64 - 99.64 99.64 - 99.64 99.64 - 99.64
Schedule of associates	The following companies are considered “Associates” in which the Bank accounts for its participation using the equity method: Percentage of ownership share As of December 31, Place of Incorporation and operation 2017 2016 2015 Associates Main activity % % % Redbanc S.A. ATM services Santiago, Chile 33.43 33.43 33.43 Transbank S.A. Debit and credit card services Santiago, Chile 25.00 25.00 25.00 Centro de Compensación Automatizado Electronic fund transfer and compensation services Santiago, Chile 33.33 33.33 33.33 Sociedad Interbancaria de Depósito de Valores S.A. Delivery of securities on public offer Santiago, Chile 29.29 29.29 29.29 Cámara Compensación de Alto Valor S.A. Payments clearing Santiago, Chile 15.00 14.93 14.23 Administrador Financiero del Transantiago S.A. Administration of boarding passes to public transportation Santiago, Chile 20.00 20.00 20.00 Sociedad Nexus S.A. Credit card processor Santiago, Chile 12.90 12.90 12.90 Servicios de Infraestructura de Mercado OTC S.A. Administration of the infrastructure for the financial market of derivative instruments Santiago, Chile 12.07 12.07 11.11
Schedule of useful lives for the tangible assets	The Bank applies the following useful lives for the tangible assets that comprise its assets: ITEM Useful life (Months) Land - Paintings and works of art - Carpets and curtains 36 Computers and hardware 36 Vehicles 36 IT systems and software 36 ATMs 60 Other machines and equipment 60 Office furniture 60 Telephone and communication systems 60 Security systems 60 Rights over telephone lines 60 Air conditioning systems 84 Other installations 120 Buildings 1,200
Schedule of type of loan	Loan and accounts receivable charge-offs are recorded for overdue and current installments based on the time periods expired since reaching overdue status, as described below: Type of loan Term Consumer loans with or without collateral 6 months Other transactions without collateral 24 months Commercial loans with collateral 36 months Mortgage loans 48 months Consumer leasing 6 months Other non-mortgage leasing transactions 12 months Mortgage leasing (household and business) 36 months

SIGNIFICANT EVENTS (Tables)

SIGNIFICANT EVENTS (Tables)	12 Months Ended
SIGNIFICANT EVENTS (Tables)	Dec. 31, 2017
Significant Events
Schedule of senior bonds	During the year ended December 31, 2017 the Bank has issued senior bonds in the amount of USD 770.000.000 and AUS 30.000.000. Debt issuance information are included in Note 18. Series Currency Amount Term (annual) Issuance rate (annual) Issuance date Maturity date DN USD 100,000,000 3.0 Libor-USD 3M+0.80% 20-07-2017 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 21-07-2017 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 24-07-2017 27-07-2020 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 23-11-2021 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 23-11-2021 DN USD 50,000,000 3.0 Libor-USD 3M+0.75% 14-09-2017 15-09-2020 DN USD 500,000,000 3.0 2.50% 12-12-2017 15-12-2020 Total USD 770,000,000 AUD AUD 30,000,000 10.0 3.96% 05-12-2017 12-12-2027 Total AUD 30,000,000
Schedule of repurchase of bonds	The Bank has conducted the following repurchase of bonds as of December 31, 2017: Date Series Amount 06-03-2017 Senior bond USD 6,900,000 12-05-2017 Senior bond UF 1,000,000 16-05-2017 Senior bond UF 690,000 17-05-2017 Senior bond UF 15,000 26-05-2017 Senior bond UF 340,000 01-06-2017 Senior bond UF 590,000 02-06-2017 Senior bond UF 300,000 05-06-2017 Senior bond UF 130,000 19-06-2017 Senior bond UF 265,000 10-07-2017 Senior bond UF 770,000 21-07-2017 Senior bond UF 10,000 28-08-2017 Senior bond UF 400,000 29-08-2017 Senior bond UF 272,000 03-11-2017 Senior bond UF 14,000 29-11-2017 Senior bond UF 400,000 06-12-2017 Senior bond UF 20,000 12-12-2017 Senior bond CLP 10,990,000,000

REPORTING SEGMENTS (Tables)

REPORTING SEGMENTS (Tables)	12 Months Ended
REPORTING SEGMENTS (Tables)	Dec. 31, 2017
Reporting Segments
Schedule of reporting segment	Below are the tables showing the Bank’s results by reporting segment for the years ended December 31, 2017, 2016 and 2015 in addition to the corresponding balances of loans and accounts receivable from customers: For the year ended December 31, 2017 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 19,233,169 970,332 206,449 20,595 (293,956) (534,970) 368,450 Middle-market 6,775,734 264,663 36,280 13,751 (19,235) (91,882) 203,577 Commercial Banking 26,008,903 1,234,995 242,729 34,346 (313,191) (626,852) 572,027 Global Corporate Banking 1,633,796 100,808 27,626 50,714 6,440 (62,685) 122,903 Other 83,215 (9,112) 8,708 44,692 4,496 (15,356) 33,428 Total 27,725,914 1,326,691 279,063 129,752 (302,255) (704,893) 728,358 Other operating income 62,016 Other operating expenses and impairment (74,057) Income from investments in associates and other companies 3,963 Income tax expense (145,031) Net income for the year 575,249 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization. Fort he year ended December 31, 2016 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 18,604,936 931,105 196,845 21,141 (323,888) (529,909) 295,294 Middle-market 6,396,376 244,960 30,851 19,577 (26,748) (83,412) 185,228 Commercial Banking 25,001,312 1,176,065 227,696 40,718 (350,636) (613,321) 480,522 Global Corporate Banking 2,121,513 95,105 25,077 55,927 7,579 (53,935) 129,753 Other 83,606 10,196 1,651 43,713 974 (19,649) 36,885 Total 27,206,431 1,281,366 254,424 140,358 (342,083) (686,905) 647,160 Other operating income 6,427 Other operating expenses and impairment (69,136) Income from investments in associates and other companies 3,012 Income tax expense (109,031) Net income for the year 478,432 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization. For the year ended December 31, 2015 Loans and accounts receivable from customers (1) Net interest income Net fee and commission income Financial transactions, net (2) Provision for loan losses Support expenses (3) Segment`s net contribution MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Retail Banking 17,034,707 873,026 190,380 16,245 (332,657) (533,086) 213,908 Middle-market 6,006,282 229,812 28,537 17,897 (26,147) (77,261) 172,838 Commercial Banking 23,040,989 1,102,838 218,917 34,142 (358,804) (610,347) 386,746 Global Corporate Banking 2,178,643 85,553 15,231 50,327 (28,426) (49,533) 73,152 Other 81,125 66,815 3,479 61,030 (12,047) (1,328) 117,949 Total 25,300,757 1,255,206 237,627 145,499 (399,277) (661,208) 577,847 Other operating income 6,439 Other operating expenses and impairment (58,750) Income from investments in associates and other companies 2,588 Income tax expense (76,395) Net income for the year 451,729 (1) Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses. (2) Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss. (3) Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization.

CASH AND CASH EQUIVALENTS (Tabl

CASH AND CASH EQUIVALENTS (Tables)	12 Months Ended
CASH AND CASH EQUIVALENTS (Tables)	Dec. 31, 2017
Cash and cash equivalents [abstract]
Schedule of cash and cash equivalents	a) The detail of the balances included under cash and cash equivalents is as follows: As of December 31, 2017 2016 MCh$ MCh$ Cash and deposits in banks Cash 613,361 570,317 Deposits at the Central Bank of Chile 441,683 507,275 Deposits in local banks 393 1,440 Deposits in banks abroad 397,485 1,200,357 Subtotals – Cash and deposits in banks 1,452,922 2,279,389 Net cash items in process of collection 181,419 206,810 Cash and cash equivalents 1,634,341 2,486,199
Schedule of cash in process of collection and in process	These transactions were as follows: As of December 31, 2017 2016 MCh$ MCh$ Assets Documents held by other banks (documents to be cleared) 199,619 200,109 Funds receivable 468,526 295,174 Subtotal 668,145 495,283 Liabilities Funds payable 486,726 288,473 Subtotal 486,726 288,473 Cash in process of collection, net 181,419 206,810

TRADING INVESTMENTS (Tables)

TRADING INVESTMENTS (Tables)	12 Months Ended
TRADING INVESTMENTS (Tables)	Dec. 31, 2017
Trading Investments
Schedule of instruments deemed as financial trading investments	The detail of instruments deemed as financial trading investments is as follows: As of December 31, 2017 2016 MCh$ MCh$ Chilean Central Bank and Government securities Chilean Central Bank Bonds 272,272 158,686 Chilean Central Bank Notes - - Other Chilean Central Bank and Government securities 209,370 237,325 Subtotal 481,642 396,011 Other Chilean securities Time deposits in Chilean financial institutions - - Mortgage finance bonds of Chilean financial institutions - - Chilean financial institution bonds - - Chilean corporate bonds - 976 Other Chilean securities - - Subtotal - 976 Foreign financial securities Foreign Central Banks and Government securities - - Other foreign financial instruments - - Subtotal - - Investments in mutual funds Funds managed by related entities 4,094 - Funds managed by others - - Subtotal 4,094 - Total 485,736 396,987

INVESTMENTS UNDER RESALE AGRE53

INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Tables)	12 Months Ended
	Dec. 31, 2017
Investments Under Resale Agreements And Obligations Under Repurchase Agreements
Schedule of receivables from repurchase agreements and security borrowing	As of December 31, 2017 and 2016, rights associated with instruments acquired under contracts to resell are as follows: As of December 31, 2017 2016 From 1 day and less than 3 months More than 3 months and less than 1 year More than 1 year Total From 1 day and less than 3 months More than 3 months and less than 1 year More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities from the Chilean Government and the Chilean Central Bank Chilean Central Bank Bonds - - - - 3,260 - - 3,260 Chilean Central Bank Notes - - - - - - - - Other securities from the Government and the Chilean Central Bank - - - - 3,476 - - 3,476 Subtotal - - - - 6,736 - - 6,736 Total - - - - 6,736 - - 6,736
Schedule of selling financial instruments	As of December 31, 2017 and 2016, obligations related to instruments sold under repurchase agreements are as follows: As of December 31, 2017 2016 From 1 day to less than 3 months More than 3 months and less than 1 year More than 1 year Total From 1 day to less than 3 months More than 3 months and less than 1 year More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Securities from Chilean Government and the Chilean Central Bank: Chilean Central Bank Bonds - - - - - - - - Chilean Central Bank Notes - - - - 155,044 - - 155,044 Other securities from the Government and the Chilean Central Bank 241,995 - - 241,995 - - - - Subtotal 241,995 - - 241,995 155,044 - - 155,044 Instruments from other domestic institutions: Time deposits in Chilean financial institutions 1,118 38 - 1,156 56,898 495 - 57,393 Subtotal 1,118 38 - 1,156 56,898 495 - 57,393 Instruments from other foreign institutions: Securities from Government or foreign Central Banks 24,910 - - 24,910 - - - - Subtotal 24,910 - - 24,910 - - - - Total 268,023 38 - 268,061 211,942 495 - 212,437
Schedule of portfolio of collateral associated with repurchase agreements at fair value	Below is the detail by portfolio of collateral associated with repurchase agreements as of December 31, 2017 and 2016, valued at fair value: As of December 31, 2017 2016 Available for sale portfolio Trading portfolio Total Available for sale portfolio Trading portfolio Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean Central Bank and Government securities: Chilean Central Bank Bonds - - - - - - Chilean Central Bank Notes - - - 155,044 - 155,044 Other securities from the Government and the Chilean Central Bank 241,995 - 241,995 - - - Subtotal 241,995 - 241,995 155,044 - 155,044 Other Chilean securities: Time deposits in Chilean financial institutions 1,156 - 1,156 57,393 - 57,393 Subtotal 1,156 - 1,156 57,393 - 57,393 Instruments from other foreign institutions: Securities from Government or foreign Central Banks 24,910 - 24,910 - - - Subtotal 24,910 - 24,910 - - - Total 268,061 - 268,061 212,437 - 212,437

DERIVATIVE FINANCIAL INSTRUME54

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Financial Instruments And Hedge Accounting
Schedule of derivative instruments portfolio	a) As of December 31, 2017 and 2016 the Bank holds the following portfolio of derivative instruments: As of December 31, 2017 Notional amount Fair value Up to 3 Months More than 3 months to 1 year More than 1 year Total Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fair value hedge derivatives Interest rate swaps - 162,985 1,554,171 1,717,156 23,003 1,424 Cross currency swaps - 715,701 5,362,772 6,078,473 15,085 65,724 Subtotal - 878,686 6,916,943 7,795,629 38,088 67,148 Cash flow hedge derivatives Currency forwards 801,093 218,982 - 1,020,075 39,233 59 Cross currency swaps 421,428 1,637,604 6,672,566 8,731,598 36,403 128,355 Subtotal 1,222,521 1,856,586 6,672,566 9,751,673 75,636 128,414 Trading derivatives Currency forwards 17,976,683 10,679,327 3,091,393 31,747,403 412,994 502,555 Interest rate swaps 9,069,964 14,389,389 46,342,779 69,802,132 467,188 392,366 Cross currency swaps 2,963,641 7,503,144 47,111,371 57,578,156 1,241,632 1,042,120 Call currency options 190,386 37,099 49,853 277,338 1,322 1,950 Call interest rate options - - - - - - Put currency options 192,722 28,616 50,470 271,808 1,787 4,935 Other derivatives - - - - - - Subtotal 30,393,396 32,637,575 96,645,866 159,676,837 2,124,923 1,943,926 Total 31,615,917 35,372,847 110,235,375 177,224,139 2,238,647 2,139,488 As of December 31, 2016 Notional amount Fair value Up to 3 months More than 3 months to 1 year More than 1 year Total Assets Liabilities MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Fair value hedge derivatives Interest rate swaps 74,086 514,454 1,402,870 1,991,410 38,977 211 Cross currency swaps 424,086 505,902 1,239,490 2,169,478 32,640 32,868 Subtotal 498,172 1,020,356 2,642,360 4,160,888 71,617 33,079 Cash flow hedge derivatives Currency forwards 915,879 639,939 - 1,555,818 10,216 3,441 Cross currency swaps 897,480 2,613,706 4,260,194 7,771,380 43,591 68,894 Subtotal 1,813,359 3,253,645 4,260,194 9,327,198 53,807 72,335 Trading derivatives Currency forwards 15,840,731 11,240,251 3,358,765 30,439,747 185,618 209,955 Interest rate swaps 6,889,665 12,512,285 49,747,459 69,149,409 627,047 526,695 Cross currency swaps 3,966,443 7,589,201 53,148,109 64,703,753 1,562,068 1,449,550 Call currency options 73,943 20,994 2,664 97,601 521 5 Call interest rate options - - - - - - Put currency options 52,143 7,892 2,664 62,699 104 542 Other derivatives - - - - - - Subtotal 26,822,925 31,370,623 106,259,661 164,453,209 2,375,358 2,186,747 Total 29,134,456 35,644,624 113,162,215 177,941,295 2,500,782 2,292,161
Schedule of fair value hedged	Below is a detail of the hedged elements and hedge instruments under fair value hedges as of December 31, 2017 and 2016, classified by term to maturity: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivable from customers: Endorsable mortgage mutual loans 587,412 801,230 106,910 - 1,495,552 Available for sale investments Yankee bonds - - 6,169 64,769 70,938 Mortgage financing bonds - - 4,738 - 4,738 Treasury bonds (BTP) - - - 129,539 129,539 Chilean Treasury bonds - 21,377 762,727 - 784,104 Chilean Central Bank bonds 128,289 218,640 443,357 - 790,286 Time deposits and other time liabilities Time deposits 137,985 - - - 137,985 Issued debt instruments Senior bonds 25,000 1,399,686 670,488 2,287,313 4,382,487 Total 878,686 2,440,933 1,994,389 2,481,621 7,795,629 Hedging instrument Cross currency swaps 715,701 1,512,238 1,813,221 2,037,313 6,078,473 Interest rate swaps 162,985 928,695 181,168 444,308 1,717,156 Total 878,686 2,440,933 1,994,389 2,481,621 7,795,629 As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivable from customers: Endorsable mortgage mutual loans - - - - - Available for sale investments Yankee bonds - - 6,660 56,610 63,270 Mortgage financing bonds - - 5,651 - 5,651 Treasury bonds (BTP) - - 33,300 366,300 399,600 Chilean Treasury bonds - - - - - Chilean Central Bank bonds (BCP) - - - - - Time deposits and other time liabilities Time deposits 993,659 - - - 993,659 Issued debt instruments Senior bonds 524,869 652,046 1,000,905 520,888 2,698,708 Total 1,518,528 652,046 1,046,516 943,798 4,160,888 Hedging instrument Cross currency swaps 929,988 437,046 531,556 270,888 2,169,478 Interest rate swaps 588,540 215,000 514,960 672,910 1,991,410 Total 1,518,528 652,046 1,046,516 943,798 4,160,888
Schedule of cash flow hedged	Below is the notional amount of the hedged items as of December 31, 2017 and 2016, and the period when the cash flows will be generated: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Mortgage loans 1,153,348 583,061 1,335,141 2,353,871 5,425,421 Commercial loans 644,608 - - - 644,608 Available for sale investments Yankee bond - - 25,290 132,572 157,862 Chilean Central Bank bonds - - 242,819 - 242,819 Time deposits - - - - - Time deposits and other time liabilities Time deposits - - - - - Issued debt instruments Senior bonds (variable rate) 120,520 647,550 302,454 - 1,070,524 Senior bonds (fixed rate) 241,183 121,619 224,401 300,874 888,077 Interbank borrowings Interbank loans 919,448 402,914 - - 1,322,362 Total 3,079,107 1,755,144 2,130,105 2,787,317 9,751,673 Hedging instrument Cross currency swaps 2,059,032 1,755,144 2,130,105 2,787,317 8,731,598 Currency forwards 1,020,075 - - - 1,020,075 Total 3,079,107 1,755,144 2,130,105 2,787,317 9,751,673 As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Loans and accounts receivables from customers Mortgage loans 1,083,972 312,546 900,746 956,803 3,254,067 Commercial loans 972,360 - - - 972,360 Available for sale investments Yankee bond - - 126,140 406,881 533,021 Chilean Central Bank bonds 20,754 - - - 20,754 Time deposits 26,196 - - - 26,196 Time deposits and other time liabilities Time deposits 285,090 - - - 285,090 Issued debt instruments Senior bonds (variable rate) 854,414 399,451 285,355 - 1,539,220 Senior bonds (fixed rate) 140,765 108,409 243,121 105,600 597,895 Interbank borrowings Interbank loans 1,683,453 415,142 - - 2,098,595 Total 5,067,004 1,235,548 1,555,362 1,469,284 9,327,198 Hedging instrument Cross currency swaps 3,511,186 1,235,548 1,555,362 1,469,284 7,771,380 Currency forwards 1,555,818 - - - 1,555,818 Total 5,067,004 1,235,548 1,555,362 1,469,284 9,327,198
Schedule of forecasted cash flows for interest rate risk	Forecasted cash flows for interest rate risk: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 308,737 60,515 13,780 2,594 385,626 Outflows (60,733) (43,507) (7,757) (878) (112,875) Net flows 248,004 17,008 6,023 1,716 272,751 Hedging instrument Inflows 60,733 43,507 7,757 878 112,875 Outflows () (308,737) (60,515) (13,780) (2,594) (385,626) Net flows (248,004) (17,008) (6,023) (1,716) (272,751) ()Only includes cash flow forecast portion of the hedge instruments used to cover interest rate risk. As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 159,439 83,193 32,647 3,748 279,027 Outflows (72,631) (45,857) (18,040) - (136,528) Net flows 86,808 37,336 14,607 3,748 142,499 Hedging instrument Inflows 72,631 45,857 18,040 - 136,528 Outflows () (159,439) (83,193) (32,647) (3,748) (279,027) Net flows (86,808) (37,336) (14,607) (3,748) (142,499) ()Only includes cash flow forecast portion of the hedge instruments used to cover interest rate risk.
Schedule of forecasted cash flows for inflation risk	Forecasted cash flows for inflation risk: As of December 31, 2017 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 20,300 29,008 103,544 286,471 439,323 Outflows (1,645) - - - (1,645) Net flows 18,655 29,008 103,544 286,471 437,678 Hedging instrument Inflows 1,645 - - - 1,645 Outflows (20,300) (29,008) (103,544) (286,471) (439,323) Net flows (18,655) (29,008) (103,544) (286,471) (437,678) As of December 31, 2016 Within 1 year Between 1 and 3 years Between 3 and 6 years Over 6 years Total MCh$ MCh$ MCh$ MCh$ MCh$ Hedged item Inflows 22,586 11,896 56,107 115,753 206,342 Outflows (4,900) - - - (4,900) Net flows 17,686 11,896 56,107 115,753 201,442 Hedging instrument Inflows 4,900 - - - 4,900 Outflows (22,586) (11,896) (56,107) (115,753) (206,342) Net flows (17,686) (11,896) (56,107) (115,753) (201,442)
Schedule of market adjustment of cash flow hedges produced by hedge instruments	The accumulated effect of the mark to market adjustment of cash flow hedges produced by hedge instruments used in hedged cash flow was recorded in the Consolidated Statement of Changes in Equity, specifically within Other comprehensive income, as of December 31, 2017 and 2016, is as follows: As of December 31, Hedged item 2017 2016 MCh$ MCh$ Interbank loans (4,779) (6,019) Time deposits and other time liabilities - (294) Issued debt instruments (8,683) (8,169) Available for sale investments (364) 12,833 Loans and accounts receivable from customers 10,264 3,937 Net flows (3,562) 2,288
Schedule of cash flow hedges amount reclassified from other comprehensive income	Below is a presentation of income generated by cash flow hedges amount that were reclassified from other comprehensive income to income for the year: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Bond hedging derivatives - (77) 6 Interbank loans hedging derivatives - - - Cash flow hedge net gains (losses) - (77) 6

INTERBANK LOANS (Tables)

INTERBANK LOANS (Tables)	12 Months Ended
INTERBANK LOANS (Tables)	Dec. 31, 2017
Interbank Loans
Schedule of interbank loans	a) As of December 31, 2017 and 2016, balances of “Interbank loans”are as follows: As of December 31, 2017 2016 MCh$ MCh$ Domestic banks Interbank loans - 23 Other domestic bank loans - 51 Foreign Interbank Loans Interbank loans – Foreign 162,685 272,733 Provisions and impairment for foreign bank loans (472) (4,135) Total 162,213 268,672
Schedule of provisions and impairment of interbank loans	b) The amount in each period for provisions and impairment of interbank loans is shown below: As of December 31, 2017 2016 Domestic banks Foreign banks Total Domestic banks Foreign banks Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1 - 4,135 4,135 - 1,166 1,166 Provisions established 251 56 307 1 3,051 3,052 Provisions released (251) (3,719) (3,970) (1) (82) (83) Total - 472 472 - 4,135 4,135

LOANS AND ACCOUNTS RECEIVABLE56

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Tables)	12 Months Ended
LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Tables)	Dec. 31, 2017
Loans And Accounts Receivable From Customers
Schedule of loan portfolio composition	As of December 31, 2017 and 2016, the composition of the loan portfolio is as follows: As of December 31, 2017 Assets before allowances Allowances established Normal portfolio Impaired portfolio Total Individual allowances Group allowances Total Assets net balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans Commercial loans 9,244,460 746,196 9,990,656 133,254 168,736 301,990 9,688,666 Foreign trade loans 1,506,359 68,154 1,574,513 49,026 1,444 50,470 1,524,043 Checking accounts debtors 179,982 15,714 195,696 2,726 11,740 14,466 181,230 Factoring transactions 444,644 5,246 449,890 4,788 1,207 5,995 443,895 Student loans 77,226 11,064 88,290 - 5,922 5,922 82,368 Leasing transactions 1,335,653 121,351 1,457,004 17,529 12,793 30,322 1,426,682 Other loans and account receivable 106,815 45,778 152,593 11,467 17,231 28,698 123,895 Subtotal 12,895,139 1,013,503 13,908,642 218,790 219,073 437,863 13,470,779 Mortgage loans Loans with mortgage finance bonds 22,620 1,440 24,060 - 123 123 23,937 Endorsable mortgage mutual loans 110,659 4,419 115,078 - 594 594 114,484 Other mortgage mutual loans 8,501,072 456,685 8,957,757 - 68,349 68,349 8,889,408 Subtotal 8,634,351 462,544 9,096,895 - 69,066 69,066 9,027,829 Consumer loans Installment consumer loans 2,613,041 297,701 2,910,742 - 240,962 240,962 2,669,780 Credit card balances 1,341,098 23,882 1,364,980 - 33,401 33,401 1,331,579 Leasing transactions 4,638 77 4,715 - 62 62 4,653 Other consumer loans 271,789 5,466 277,255 - 9,331 9,331 267,924 Subtotal 4,230,566 327,126 4,557,692 - 283,756 283,756 4,273,936 Total 25,760,056 1,803,173 27,563,229 218,790 571,895 790,685 26,772,544 As of December 31, 2016 Assets before allowances Allowances established Normal portfolio Impaired portfolio Total Individual allowances Group allowances Total Assets net balance MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Commercial loans Commercial loans 9,160,354 693,303 9,853,657 159,463 148,703 308,166 9,545,491 Foreign trade loans 1,750,196 79,708 1,829,904 56,919 901 57,820 1,772,084 Checking accounts debtors 166,073 13,395 179,468 2,794 6,854 9,648 169,820 Factoring transactions 291,112 5,639 296,751 4,787 620 5,407 291,344 Student loans - - - - - - - Leasing transactions 1,376,972 108,151 1,485,123 17,593 5,546 23,139 1,461,984 Other loans and account receivable 193,589 28,973 222,562 4,780 20,482 25,262 197,300 Subtotal 12,938,296 929,169 13,867,465 246,336 183,106 429,442 13,438,023 Mortgage loans Loans with mortgage finance bonds 31,368 1,211 32,579 - 16 16 32,563 Endorsable mortgage mutual loans 115,400 4,534 119,934 - 190 190 119,744 Other mortgage mutual loans 8,074,900 391,943 8,466,843 - 56,803 56,803 8,410,040 Subtotal 8,221,668 397,688 8,619,356 - 57,009 57,009 8,562,347 Consumer loans Installment consumer loans 2,468,692 253,673 2,722,365 - 249,545 249,545 2,472,820 Credit card balances 1,418,409 29,709 1,448,118 - 41,063 41,063 1,407,055 Leasing transactions 5,062 55 5,117 - 72 72 5,045 Other consumer loans 266,056 5,147 271,203 - 9,339 9,339 261,864 Subtotal 4,158,219 288,584 4,446,803 - 300,019 300,019 4,146,784 Total 25,318,183 1,615,441 26,933,624 246,336 540,134 786,470 26,147,154
Schedule of portfolio of loans	As of December 31, 2017 and 2016 the portfolio before allowances is as follows, by customer’s economic activity: Domestic loans () Foreign interbank loans Total loans Distribution percentage As of December 31 As of December 31, As of December 31, As of December 31, 2017 2016 2017 2016 2017 2016 2017 2016 MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ % % Commercial loans Manufacturing 1,218,232 1,180,886 1,218,232 1,180,886 4.39 4.34 Mining 302,037 340,554 - - 302,037 340,554 1.09 1.25 Electricity, gas, and water 336,048 442,936 - - 336,048 442,936 1.21 1.63 Agriculture and livestock 1,114,597 1,096,659 - - 1,114,597 1,096,659 4.02 4.03 Forest 98,941 96,806 - - 98,941 96,806 0.36 0.36 Fishing 215,994 296,592 - - 215,994 296,592 0.78 1.09 Transport 697,948 787,510 - - 697,948 787,510 2.52 2.89 Communications 168,744 196,934 - - 168,744 196,934 0.61 0.72 Construction 1,977,417 1,792,485 - - 1,977,417 1,792,485 7.13 6.59 Commerce 3,131,870 3,120,400 - - 3,294,555 3,393,133 11.88 12.47 Services 467,747 482,900 162,685 272,733 467,747 482,900 1.69 1.77 Other 4,179,067 4,032,877 - - 4,179,067 4,032,877 15.07 14.84 - - Subtotal 13,908,642 13,867,539 162,685 272,733 14,071,327 14,140,272 50.75 51.98 Mortgage loans 9,096,895 8,619,356 9,096,895 8,619,356 32.81 31.68 - - Consumer loans 4,557,692 4,446,803 4,557,692 4,446,803 16.43 16.34 - - Total 27,563,229 26,933,698 162,685 272,733 27,725,914 27,206,431 100.00 100.00 () Includes domestic interbank loans for Ch$ 0 million as of December 31, 2017 (Ch$74 million as of December 31, 2016), see Note 8.
Schedule of impaired portfolio	i) As of December 31, 2017 and 2016, the impaired portfolio is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Individual impaired portfolio 427,890 - - 427,890 439,707 - - 439,707 Non-performing loans (1) (collectively evaluated) 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131 Other impaired portfolio 217,091 300,776 223,955 741,822 172,624 250,116 188,863 611,603 Total 1,013,503 462,544 327,126 1,803,173 929,169 397,688 288,584 1,615,441 (1) Non-performing loans include the aggregate unpaid principal and accrued but unpaid interest on all loans with at least one installment at least 90 days past-due. ii) The impaired portfolio with or without guarantee as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Secured debt 582,557 413,716 34,260 1,030,533 519,821 357,320 35,134 912,275 Unsecured debt 430,946 48,828 292,866 772,640 409,348 40,368 253,450 703,166 Total 1,013,503 462,544 327,126 1,803,173 929,169 397,688 288,584 1,615,441 iii) The portfolio of non-performing loans with or without guarantee, as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Secured debt 167,909 141,413 8,896 318,218 159,965 129,632 8,940 298,537 Unsecured debt 200,613 20,355 94,275 315,243 156,873 17,940 90,781 265,594 Total 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131 iv) The portfolio of non-performing portfolio as of December 31, 2017 and 2016 is as follows: As of December31, 2017 2016 Commercial Mortgage Consumer Total Commercial Mortgage Consumer Total MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ Non-performing >90 days 362,968 159,265 92,541 614,774 311,755 145,084 84,458 541,297 Non-performing <90 days 5,554 2,503 10,630 18,687 5,083 2,488 15,263 22,834 Total 368,522 161,768 103,171 633,461 316,838 147,572 99,721 564,131
Schedule of allowances for loans losses	The changes in allowance balances during 2017 and 2016 are as follows: Activity during 2017 Commercial loans Mortgage loans Consumer loans Total Individual Group Group Group MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1, 2017 246,336 183,106 57,009 300,019 786,470 Allowances established (1) 64,658 148,681 43,621 252,038 508,998 Allowances released (2) (55,925) (20,491) (11,427) (46,089) (133,932) Allowances released due to charge-off (3) (36,279) (92,223) (20,137) (222,212) (370,851) Balances as of December 31, 2017 218,790 219,073 69,066 283,756 790,685 Activity during 2016 Commercial loans Mortgage loans Consumer loans Total Individual Group Group Group MCh$ MCh$ MCh$ MCh$ MCh$ Balance as of January 1, 2016 256,505 174,696 62,427 267,507 761,135 Allowances established (1) 61,002 133,855 50,892 280,544 526,293 Allowances released (2) (43,183) (14,432) (34,246) (30,790) (122,651) Allowances released due to charge-off (3) (27,988) (111,013) (22,064) (217,242) (378,307) Balances as of December 31, 2016 246,336 183,106 57,009 300,019 786,470 (1) Represents gross allowances made in respect of increased risk of loss during the period and loan growth. (2) Represents the gross amount of loan loss allowances released during the year as a consequence of reduction in the level of risk existing in the loan portfolio, including as a result of improvement in the credit risk classification of borrowers and loans paid. (3) Represents the gross amount of loan loss allowances removed due to charge-off.
Schedule of recoveries by type of loan	Recoveries by type of loan For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Commercial loans 32,401 27,185 26,032 Consumer loans 39,972 41,072 35,565 Residential mortgage loans 10,942 10,041 6,543 Total 83,315 78,298 68,140
Schedule of allowances established on customer and interbank loans	The following chart shows the balance of allowances established, associated with credits granted to customers and banks: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Customers loans 508,998 526,293 545,056 Interbank loans 307 3,052 1,357 Total 509,305 529,345 546,413
Schedule of allowance for loan losses associated with impaired and non impaired	Portfolio by its impaired and non-impaired status. As of December 31, 2017 Non-impaired Impaired Portfolio total Commercial Mortgage Consumer Total non impaired Commercial Mortgage Consumer Total impaired Commercial Mortgage Consumer Total portfolio MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current portfolio 12,737,508 8,357,733 4,012,489 25,107,730 449,895 158,770 110,184 718,849 13,187,403 8,516,503 4,122,673 25,826,579 Overdue for 1-29 days 103,908 180,294 132,136 416,338 110,834 74,072 46,283 231,189 214,742 254,366 178,419 647,527 Overdue for 30-89 days 53,723 96,324 85,941 235,988 89,806 70,437 78,118 238,361 143,529 166,761 164,059 474,349 Overdue for 90 days or more - - - - 362,968 159,265 92,541 614,774 362,968 159,265 92,541 614,774 Total portfolio before allowances 12,895,139 8,634,351 4,230,566 25,760,056 1,013,503 462,544 327,126 1,803,173 13,908,642 9,096,895 4,557,692 27,563,229 Overdue loans (less than 90 days) presented as portfolio percentage 1.22% 3.20% 5.15% 2.53% 19.80% 31.24% 38.03% 26.04% 2.58% 4.63% 7.51% 4.07% Overdue loans (90 days or more) presented as portfolio percentage. - - - - 35.81% 34.43% 28.29% 34.09% 2.61% 1.75% 2.03% 2.23% As of December 31, 2016 Non-impaired Impaired Portfolio total Commercial Mortgage Consumer Total non impaired Commercial Mortgage Consumer Total impaired Commercial Mortgage Consumer Total portfolio MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Current portfolio 12,765,961 7,944,260 3,957,566 24,667,787 463,176 133,816 100,670 697,662 13,229,137 8,078,076 4,058,236 25,365,449 Overdue for 1-29 days 97,302 69,227 113,031 279,560 35,777 12,984 32,536 81,297 133,079 82,211 145,567 360,857 Overdue for 30-89 days 75,033 208,181 87,622 370,836 118,461 105,804 70,920 295,185 193,494 313,985 158,542 666,021 Overdue for 90 days or more - - - - 311,755 145,084 84,458 541,297 311,755 145,084 84,458 541,297 Total portfolio before allowances 12,938,296 8,221,668 4,158,219 25,318,183 929,169 397,688 288,584 1,615,441 13,867,465 8,619,356 4,446,803 26,933,624 Overdue loans (less than 90 days) presented as portfolio percentage 1.33% 3.37% 4.83% 2.57% 16.60% 29.87% 35.85% 23.31% 2.35% 4.60% 6.84% 3.81% Overdue loans (90 days or more) presented as portfolio percentage. - - - - 33.55% 36.48% 29.27% 33.51% 2.25% 1.68% 1.90% 2.01%
Schedule for transactions of sale or transfer of loan portfolio	Reconciliation of overdue loans with non-performing loans As of December 31, 2017 Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ Overdue loans 362,968 159,265 92,541 614,774 Loans with not overdue but classified as non-performing loans 5,554 2,503 10,630 18,687 Total 368,522 161,768 103,171 633,461 As of December 31, 2016 Commercial Mortgage Consumer Total MCh$ MCh$ MCh$ Overdue loans 311,755 145,084 84,458 541,297 Loans with not overdue but classified as non-performing loans 5,083 2,488 15,263 22,834 Total 316,838 147,572 99,721 564,131

AVAILABLE FOR SALE INVESTMENTS

AVAILABLE FOR SALE INVESTMENTS (Tables)	12 Months Ended
AVAILABLE FOR SALE INVESTMENTS (Tables)	Dec. 31, 2017
Available For Sale Investments
Schedule of available for sale investments	As of December 31, 2017 and 2016,detail of instruments deemed as available for sale investments is as follows: As of December 31, 2017 2016 MCh$ MCh$ Chilean central bank and government securities Chilean central bank bonds 816,331 468,386 Chilean central bank notes 330,952 1,222,283 Other Chilean central bank and government securities 1,115,518 52,805 Subtotal 2,262,801 1,743,474 Other Chilean securities Time deposits in Chilean financial institutions 2,361 891,320 Mortgage finance bonds of Chilean financial institutions 22,312 25,488 Other instruments issued in the country 3,000 1,680 Subtotal 27,673 918,488 Foreign financial securities Foreign Central Banks and Government securities 132,822 387,146 Other foreign financial securities 151,250 339,798 Subtotal 284,072 726,944 Total 2,574,546 3,388,906
Schedule of gross profits and losses realized on the sale of available for sale investments	Gross profits and losses realized on the sale of available for sale investments as of December 31, 2017, 2016 and 2015, are as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Sale of available for sale investments generating realized profits 6,469,344 6,522,549 2,627,490 Realized profits 4,867 12,333 22,473 Sale of available for sale investments generating realized losses 466.732 346,906 346,450 Realized losses 3 132 72
Schedule of available for sale investments cumulative unrealized profit and loss	The following charts show the available for sale investments cumulative unrealized profit and loss, as of December 31, 2017 and 2016: As of December 31, 2017: Less than 12 months More than 12 months Total Acquisition Fair value Unrealized profit Unrealized Acquisition Fair value Unrealized profit Unrealized loss Acquisition Fair value Unrealized profit Unrealized loss MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean central bank and government securities Chilean central bank Bonds 816,164 816,331 5,513 (5,346) - - - - 816,164 816,331 5,513 (5,346) Chilean central bank Notes 330,923 330,952 30 (1) - - - - 330,923 330,952 30 (1) Other Chilean central bank and government securities 1,117,447 1,115,518 2,960 (4,888) - - - - 1,117,447 1,115,518 2,960 (4,888) Subtotal 2,264,534 2,262,801 8,503 (10,235) - - - - 2,264,534 2,262,801 8,503 (10,235) Other Chilean securities Time deposits in Chilean financial institutions 2,361 2,361 - - - - - - 2,361 2,361 - - Mortgage finance bonds of Chilean financial institutions 21,867 22,312 445 - - - - - 21,867 22,312 445 - Chilean financial institution bonds - - - - - - - - - - - - Chilean corporate bonds - - - - - - - - - - - - Other Chilean securities 220 3,000 2,780 - - - - - 220 3,000 2,780 - Subtotal 24,448 27,673 3,225 - - - - - 24,448 27,673 3,225 - Foreign financial securities Foreign central banks and government securities 133,301 132,822 847 (1,326) - - - - 133,301 132,822 847 (1,326) Other foreign financial securities 150,408 151,250 1,097 (256) - - - - 150,408 151,250 1,097 (256) Subtotal 283,709 284,072 1,944 (1,582) - - - - 283,709 284,072 1,944 (1,582) Total 2,572,691 2,574,546 13,672 (11,817) - - - - 2,572,691 2,574,546 13,672 (11,817) As of December 31, 2016: Less than 12 months More than 12 months Total Acquisition Fair value Unrealized profit Unrealized loss Acquisition cost Fair value Unrealized profit Unrealized loss Acquisition Fair value Unrealized profit Unrealized loss MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Chilean central bank and government securities Chilean central bank Bonds 461,793 468,386 6,612 (19) - - - - 461,793 468,386 6,612 (19) Chilean central bank notes 1,222,263 1,222,283 23 (3) - - - - 1,222,263 1,222,283 23 (3) Other Chilean central bank and government securities 52,411 52,805 394 - - - - - 52,411 52,805 394 - Subtotal 1,736,467 1,743,474 7,029 (22) - - - - 1,736,467 1,743,474 7,029 (22) Other Chilean securities Time deposits in Chilean financial institutions 891,276 891,320 108 (64) - - - - 891,276 891,320 108 (64) Mortgage finance bonds of Chilean financial institutions 25,021 25,488 469 (2) - - - - 25,021 25,488 469 (2) Chilean financial institution bonds - - - - - - - - - - - - Chilean corporate bonds - - - - - - - - - - - - Other Chilean securities 220 1,680 1,460 - - - - - 220 1,680 1,460 - Subtotal 916,517 918,488 2,037 (66) - - - - 916,517 918,488 2,037 (66) Foreign financial securities Foreign central banks and government securities 387,077 387,146 69 - - - - - 387,077 387,146 69 - Other foreign financial securities 341,470 339,798 655 (2,327) - - - - 341,470 339,798 655 (2,327) Subtotal 728,547 726,944 724 (2,327) - - - - 728,547 726,944 724 (2,327) Total 3,381,531 3,388,906 9,790 (2,415) - - - - 3,381,531 3,388,906 9,790 (2,415)

INVESTMENTS IN ASSOCIATES AND58

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Tables)	12 Months Ended
INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Tables)	Dec. 31, 2017
Investments In Associates And Other Companies
Schedule of investments in associates and other companies	a) Investments in associates and other, are shown in the following table: Investment Ownership interest As of December 31 Investment value As of December 31, Profit and loss As of December 31, 2017 MCh$ 2016 MCh$ 2015 MCh$ 2017 MCh$ 2016 MCh$ 2017 MCh$ 2016 MCh$ 2015 MCh$ Company Redbanc S.A. 33.43 33.43 33.43 2,537 2,184 353 373 215 Transbank S.A. 25.00 25.00 25.00 14,534 12,510 2,024 1,302 1,256 Centro de Compensación Automatizado 33.33 33.33 33.33 1,589 1,353 236 248 212 Sociedad Interbancaria de Depósito de Valores S.A. 29.29 29.29 29.29 1,087 235 195 213 Cámara de Compensación de Alto Valor S.A. (1,2,3,4) 15.00 14.93 14.23 909 866 66 98 127 Administrador Financiero del Transantiago S.A. 20.00 20.00 20.00 3,098 2,781 317 230 323 Sociedad Nexus S.A. 12.90 12.90 12.90 1,911 1,469 442 247 225 Servicios de Infraestructura de Mercado OTC S.A. (1&2) 12.07 12.07 11.11 1,489 1,378 115 132 (115) Subtotal 27,154 23,479 3,788 2,825 2,456 Shares or rights in other companies () Bladex 136 136 25 26 25 Stock Exchanges 287 157 150 161 107 Others 8 8 - - - Total 27,585 23,780 3,963 3,012 2,588 () Investments in associates and other companies do not have market prices. (1) During the third quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.84% and 11.93% respectively. (2) During the last quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.93% and 12.07% respectively. (3) In February 2017, Banco Paris sold to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Cámara de Compensación de pagos de Alto Valor SA", the Bank's share increased to 15.00% (4) In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensación de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing our participation to 14.23%.
Schedule of financial information of associates	As of December 31, 2017 2016 2015 Net income Net income Net income Assets Liabilities Equity Assets Liabilities Equity Assets Liabilities Equity MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Centro de Compensación Automatizado 6,871 2,174 3,989 708 5,508 1,523 3,241 744 5,148 1,897 2,616 635 Redbanc S.A. 21,235 13,751 6,428 1,056 19,927 13,505 5,307 1,115 20,296 14,877 4,777 642 Transbank S.A. 822,487 765,683 48,709 8,095 710,475 660,957 44,309 5,209 601,627 561,325 35,278 5,024 Sociedad Interbancaria de Depósito de Valores S.A. 3,720 60 2,858 802 3,204 103 2,435 666 2,714 58 2,093 563 Sociedad Nexus S.A. 32,669 18,888 10,354 3,427 30,038 19,229 8,898 1,911 23,153 13,682 7,730 1,741 Servicios de Infraestructura de Mercado OTC S.A. 17,913 6,414 10,963 536 29,258 18,258 9,906 1,094 17,631 7,800 10,869 (1,038) Administrador Financiero del Transantiago S.A. 51,304 35,814 13,907 1,583 54,253 40,345 12,758 1,150 42,518 29,760 11,145 1,613 Cámara de Compensación de Alto Valor S.A. 6,338 500 5,399 439 6,099 627 4,815 657 5,730 775 4,066 889 Total 962,537 843,284 102,607 16,646 858,762 754,547 91,669 12,546 718,817 630,174 78,574 10,069
Schedule of investments in other companies	Activity with respect to investments in other companies during 2017, 2016 and 2015 is as follows: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Opening balance as of January 1, 23,780 20,309 17,914 Acquisition of investments () 3 1,123 302 Sale of investments - - - Participation in income 3,962 3,012 2,588 Dividends received (116) (217) (278) Other equity adjustments (44) (447) (217) Total 27,585 23,780 20,309 () See reference, part a) of this note.

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	12 Months Ended
INTANGIBLE ASSETS (Tables)	Dec. 31, 2017
Intangible Assets
Schedule of composition of intangible assets	As of December 31, 2017 Years of useful life Average remaining useful life Net opening balance as of January 1, 2016 Gross balance Accumulated amortization Net balance MCh$ MCh$ MCh$ MCh$ Licenses 3 1 1,656 10,932 (9,732) 1,200 Software development 3 2 56,429 314,115 (252,096) 62,019 Total 58,085 325,047 (261,828) 63,219 As of December 31, 2016 Years of useful life Average remaining useful life Net opening balance as of January 1, 2015 Gross balance Accumulated amortization Net balance MCh$ MCh$ MCh$ MCh$ Licenses 3 2 2,060 10,932 (9,276) 1,656 Software development 3 2 49,077 286,781 (230,352) 56,429 Total 51,137 297,713 (239,628) 58,085
Schedule of changes in the value of intangible assets	The changes in the value of intangible assets during the periods ended December 31, 2017 and December 31, 2016 is as follows: b.1) Gross balances Licenses Software development Total MCh$ MCh$ MCh$ Balances as of January 1, 2017 10,932 286,781 297,713 Acquisitions - 32,624 32,624 Disposals and impairment - (5,290) (5,290) Other - - - Balances as of December 31, 2017 10,932 314,115 325,047 Balances as of January 1, 2016 10,932 259,500 270,432 Acquisitions - 27,281 27,281 Disposals and impairment - - - Other - - - Balances as of December 31, 2016 10,932 286,781 297,713 b.2) Accumulated amortization Licenses Software development Total MCh$ MCh$ MCh$ Balances as of January 1, 2017 (9,276) (230,352) (239,628) Year’s amortization (456) (21,744) (22,200) Other changes - - - Balances as of December 31, 2017 (9,732) (252,096) (261,828) Balances as of January 1, 2016 (8,872) (210,423) (219,295) Year’s amortization (404) (19,929) (20,333) Other changes - - - Balances as of December 31, 2016 (9,276) (230,352) (239,628)

PROPERTY, PLANT, AND EQUIPMENT

PROPERTY, PLANT, AND EQUIPMENT (Tables)	12 Months Ended
PROPERTY, PLANT, AND EQUIPMENT (Tables)	Dec. 31, 2017
Property, plant and equipment [abstract]
Schedule of composition of property, plant, and equipment	a) As of December 31, 2017 Net opening balance as of January 1, 2017 Gross balance Accumulated depreciation Net balance MCh$ MCh$ MCh$ MCh$ Land and buildings 169,809 274,079 (114,727) 159,352 Equipment 66,506 193,689 (130,173) 63,516 Ceded under operating leases 4,230 4,888 (667) 4,221 Other 16,834 60,822 (45,364) 15,458 Total 257,379 533,478 (290,931) 242,547 As of December 31, 2016 Net opening balance as of January 1, 2016 Gross balance Accumulated depreciation Net balance MCh$ MCh$ MCh$ MCh$ Land and buildings 158,434 264,016 (94,207) 169,809 Equipment 59,908 168,124 (101,618) 66,506 Ceded under operating leases 4,238 4,888 (658) 4,230 Other 18,079 55,973 (39,139) 16,834 Total 240,659 493,001 (235,622) 257,379
Schedule of changes in the value of property, plant, and equipment	b) The changes in the value of property, plant, and equipment as of December 31, 2017 and 2016 is as follows: b.1) 2017 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2017 264,016 168,124 4,888 55,973 493,001 Additions 27,592 26,278 - 4,902 58,772 Disposals (17,529) (359) - (53) (17,941) Impairment due to damage - (354) - - (354) Other - - - - - Balances as of December 31, 2017 274,079 193,689 4,888 60,822 533,478 2016 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2016 237,449 137,621 4,888 51,482 431,440 Additions 26,567 30,965 - 4,823 62,355 Disposals - (228) - (332) (560) Impairment due to damage - (234) - - (234) Other - - - - - Balances as of December 31, 2016 264,016 168,124 4,888 55,973 493,001 b.2) 2017 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2017 (94,207) (101,618) (658) (39,139) (235,622) Depreciation charges in the period (20,744) (28,592) (9) (6,277) (55,622) Sales and disposals in the period 224 37 - 52 313 Transfers - - - - 0 Other - - - - 0 Balances as of December 31, 2017 (114,727) (130,173) (667) (45,364) (290,931) 2016 Land and buildings Equipment Ceded under operating leases Other Total MCh$ MCh$ MCh$ MCh$ MCh$ Balances as of January 1, 2016 (79,015) (77,713) (650) (33,403) (190,781) Depreciation charges in the period (15,192) (23,976) (8) (5,849) (45,025) Sales and disposals in the period - 71 - 113 184 Transfers - - - - - Other - - - - - Balances as of December 31, 2016 (94,207) (101,618) (658) (39,139) (235,622)
Schedule of operational leases - lessor	c) Operational leases – lessor As of December 31, 2017 and 2016, the future minimum lease cash inflows under non-cancellable operating leases are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 567 506 Due after 1 year but within 2 years 749 1,029 Due after 2 years but within 3 years 480 502 Due after 3 years but within 4 years 348 473 Due after 4 years but within 5 years 308 344 Due after 5 years 1,792 2,067 Total 4,244 4,921
Schedule of operational leases - lessee	d) Operational leases – lessee Certain Bank’s premises and equipment are leased under various operating leases. Future minimum rental payments under non-cancellable leases are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 26,059 26,455 Due after 1 year but within 2 years 21,343 24,903 Due after 2 year but within 3 years 18,091 20,582 Due after 3 years but within 4 years 15,736 17,321 Due after 4 years but within 5 years 12,734 14,569 Due after 5 years 51,502 53,694 Total 145,465 157,524

CURRENT AND DEFERRED TAXES (Tab

CURRENT AND DEFERRED TAXES (Tables)	12 Months Ended
CURRENT AND DEFERRED TAXES (Tables)	Dec. 31, 2017
Current And Deferred Taxes Details 2
Schedule of taxes payable (recoverable)	This amount is recorded net of recoverable taxes, and is shown as follows: As of December 31, 2017 2016 MCh$ MCh$ Summary of current tax liabilities (assets) Current tax (assets) - - Current tax liabilities 6,435 29,294 Total tax payable (recoverable) 6,435 29,294 (Assets) liabilities current taxes detail (net) Income tax, tax rate() 145,112 145,963 Minus: Provisional monthly payments (136,562) (113,700) Credit for training expenses (1,768) (1,972) Land taxes leasing - - Grant credits (968) (1,079) Other 621 82 Total tax payable (recoverable) 6,435 29,294 ()The tax rate is 25.5% for 2017 and 24.0% for 2016.
Schedule of effect on income	The effect of tax expense on income for the years ended December 31, 2017 and 2016 is comprised of the following items: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income tax expense Current tax 145,112 145,963 121,775 Credits (debits) for deferred taxes Origination and reversal of temporary differences (6,751) (37,269) (45,672) Valuation provision 5,955 Subtotals 144,316 108,694 76,103 Tax for rejected expenses (Article No.21) 610 336 340 Other 105 1 (48) Net charges for income tax expense 145,031 109,031 76,395
Schedule of effective tax rate reconciliation	The reconciliation between the income tax rate and the effective rate applied in determining tax expenses as of December 31, 2017, 2016 and 2015, is as follows: For the year ended December 31, 2017 2016 2015 Tax rate Amount Tax rate Amount Tax rate Amount % MCh$ % MCh$ % MCh$ Tax calculated over profit before tax 25.50 183,671 24.00 140,991 22.50 118,828 Price level restatement for tax purposes (1) (3.03) (21,829) (5.49) (32,256) (5.42) (28,630) Single penalty tax (rejected expenses) 0.08 610 0.06 336 0.06 340 Effect of tax reform changes on deferred tax (2) (2.86) (20,600) 0.01 86 (2.01) (10,600) Real estate taxes 0.00 - 0.00 - (0.73) (3,853) Other 0.44 3,179 (0.02) (126) 0.06 310 Effective rates and expenses for income tax 20.13 145,031 18.56 109,031 14.46 76,395 (1) Price level restatement on tax purpose capital (2) In accordance with Chilean Law N°20.780 published in September 29, 2014 the income tax rate are 25,5% and 27% for 2017 and 2018 respectively.
Schedule of effect of deferred taxes on comprehensive income	Below is a summary of the separate effect of deferred tax on other comprehensive income, showing the asset and liability balances, for the years ended December 31, 2017 and 2016: As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Available for sale investments 368 3,266 Cash flow hedges 908 - Total deferred tax assets recognized through other comprehensive income 1,276 3,266 Deferred tax liabilities Available for sale investments (841) (5,036) Cash flow hedges - (549) Total deferred tax liabilities recognized through other comprehensive income (841) (5,585) Net deferred tax balances in equity 435 (2,319) Deferred taxes in equity attributable to equity holders of the Bank 791 (2,097) Deferred tax in equity attributable to non-controlling interests (356) (222)
Schedule of effect of deferred taxes on income	the Bank has recorded effects for deferred taxes in the financial statements: As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Interests and adjustments 8,645 9,473 Non-recurring charge-offs 11,651 9,891 Assets received in lieu of payment 1,582 2,999 Exchange rate adjustments 882 - Property, plant and equipment valuation 4,410 4,570 Allowance for loan losses 160,359 163,456 Provision for expenses 73,518 67,073 Leased assets 98,090 71,834 Subsidiaries tax losses 5,277 9,467 Prepaid expenses 151 - Other 5,249 17,571 Total deferred tax assets 369,814 356,334 Deferred tax liabilities Valuation of investments (1,911) (1,802) Depreciation (532) - Valuation provision (5,955) - Other (432) (299) Total deferred tax liabilities (8,830) (2,101)
Schedule of deferred tax assets and liabilities	Below is a summary of the deferred taxes impact on equity and income. As of December 31, 2017 2016 MCh$ MCh$ Deferred tax assets Recognized through other comprehensive income 1,276 3,266 Recognized through profit or loss 369,815 356,334 Total deferred tax assets 371,091 359,600 Deferred tax liabilities Recognized through other comprehensive income (841) (5,585) Recognized through profit or loss (8,822) (2.101) Total deferred tax liabilities (9,663) (7.686)

OTHER ASSETS (Tables)

OTHER ASSETS (Tables)	12 Months Ended
OTHER ASSETS (Tables)	Dec. 31, 2017
Other Assets
Schedule of other assets	Other assets item includes the following: As of December 31, 2017 2016 MCh$ MCh$ Assets for leasing (1) 48,099 44,840 Assets received or awarded in lieu of payment Assets received in lieu of payment 20,904 26,598 Assets awarded at judicial sale 24,800 26,895 Provision on assets received in lieu of payment or awarded (1,440) (7,558) Subtotal 44,264 45,935 Other assets Guarantee deposits (margin accounts) (2) 323,767 396,289 Gold investments 478 446 VAT credit 9,570 8,941 Income tax recoverable 1,381 22,244 Prepaid expenses 116,512 148,288 Assets recovered from leasing for sale 4,235 6,040 Pension plan assets 921 1,637 Accounts and notes receivable 59,574 56,624 Notes receivable through brokerage and simultaneous transactions 68,272 60,632 Other receivable assets 53,500 15,082 Other assets (3) 33,837 40,274 Subtotal 672,047 756,497 Total 764,410 847,272 (1) Assets available to be granted under the financial leasing agreements. (2) Guarantee deposits (margin accounts) correspond collaterals associated with derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result the the Bank deliver or receive collateral. (3) Other assets mainly include settlement of derivatives and other financial transactions.

TIME DEPOSITS AND OTHER TIME 63

TIME DEPOSITS AND OTHER TIME LIABILITIES (Tables)	12 Months Ended
TIME DEPOSITS AND OTHER TIME LIABILITIES (Tables)	Dec. 31, 2017
Time Deposits And Other Time Liabilities
Scheduel of time deposits and other time liabilities	As of December 31, 2017 and 2016, the composition of the line item time deposits and other liabilities is as follows: As of December 31, 2017 2016 MCh$ MCh$ Deposits and other demand liabilities Checking accounts 6,272,656 6,144,688 Other deposits and demand accounts 590,221 564,966 Other demand liabilities 905,289 829,661 Total 7,768,166 7,539,315 Time deposits and other time liabilities Time deposits 11,792,466 13,031,319 Time savings account 116,179 116,451 Other time liabilities 5,300 3,939 Total 11,913,945 13,151,709

INTERBANK BORROWINGS (Tables)

INTERBANK BORROWINGS (Tables)	12 Months Ended
INTERBANK BORROWINGS (Tables)	Dec. 31, 2017
Disclosure of financial liabilities [line items]
Schedule of Interbank borrowings	As of December 31, 2017 and 2016 the line item Interbank borrowings is as follows: As of December 31, 2017 2016 MCh$ MCh$ Loans from financial institutions and the Central Bank of Chile Other obligations with Central Bank of Chile 5 7 Subtotal 5 7 Loans from domestic financial institutions 480 365,436 Loans from foreign financial institutions Sumitomo Mitsui Banking Corporation 259,199 233,060 Wells Fargo Bank N.A. 235,058 113,631 Bank Of America N.A. 228,309 - Standard Chartered Bank 225,966 101,874 Mizuho Bank Ltd. NY. 215,967 - Citibank N.A. 191,471 183,193 The Bank of Nova Scotia 86,419 39,967 The Toronto-Dominion Bank 62,743 - Corporación Andina De Fomento 31,075 - Barclays Bank PLC London 30,886 33,279 HSBC Bank Plc NY 30,875 33,214 The Bank of New York Mellon 30,839 82,594 Hsbc Bank Plc 30,838 - European Investment Bank 12,629 13,980 Banco Santander – Hong Kong 8,341 6,165 Banco Santander Brasil S.A. 5,225 5,175 Bank Austria A.G. 2,317 - Bank of China 823 311 Shanghai Pudong Development 714 205 Bank of Tokyo Mitsubishi 453 430 Keb Hana Bank 396 301 Shinhan Bank 394 354 Thai Military Bank Public Comp 377 425 Hua Nan Commercial Bank Ltd. 349 83 Mizuho Corporate Bank 331 411,753 Banco Santander Central Hispano 312 - Agricultural Bank of China 295 327 Banco de Occidente 282 - Banco Do Brasil S.A. 268 120 Unicredito Italiano 264 - Bank of East Asia, Limited 241 54 Canara Bank 224 91 Hong Kong and Shanghai Banking 222 889 International Commercial Bank 221 - Banque Generale Du Luxembourg 207 138 Kookmin Bank 201 317 Zhejiang Commercial Bank Ltd. 175 - Banca Monte dei Paschi di Siena 162 309 Taiwan Cooperative Bank 159 - Deutsche Bank A.G. 157 - Yapi Ve Kredi Bankasi A.S. 155 73 J.P. Morgan Chase Bank N.A. 154 49 Banco Commerzbank 145 47 Bank of Taiwan 136 183 Industrial And Commercial Bank 119 - Bank Of Nova Scotia 112 - State Bank of India 110 289 Woori Bank 105 153 Bancolombia S.A. 94 31 Bank of Communications 93 393 Cassa Di Risparmio Di Parma E 93 132 China Construcción Bank 90 1,044 Metropolitan Bank Limited 87 26 Banca Delle Marche Spa 76 31 Australia And New Zealand Bank 62 21 Abanca Corporacion Bancaria SA 60 - Casa Di Risparmo De Padova E.R. 56 76 Societe Generale 56 - Hanvit Bank 55 76 Banca Popolare Dell'Emilia Rom 53 26 Banco Bradesco S.A. 50 113 Punjab National Bank 47 - Citic Industrial Bank 39 - Hang Seng Bank Ltd. 39 - Subtotal 1,697,470 1,265,002 As of December 31, 2017 2016 MCh$ MCh$ Loans from foreign financial institutions, continuación Hsbc Bank Usa 38 - First Union National Bank 35 226 Habib Bank Limited 34 105 Banco Caixa Geral. 33 - Banco Internacional S.A. 33 - Banca Commerciale Italiana S.P. 31 - Bank of Montreal 30 201 Kasikornbank Public Company Li. 25 - Citibank N.A. Turkiye Merkez S. 23 158 Liu Chong Hing Bank Limited 21 - Banco Popular Espanol S.A. 19 56 Taiwan Business Bank 19 - Fortis Bank S.A./N.V. Brussels 15 12 Chang Hwa Commercial Bank Ltd. 14 17 Banco De Sabadell S.A. 10 - Bank Of China Guangdong Branch 8 14 Icici Bank Limited 8 25 Banco Popolare Soc Coop 6 5 Bank of America - 213,200 NTT Docomo Ibc - 33,149 Zurcher Kantonal Bank - 20,021 Banque Bruxelles Lambert S.A. - 5,797 Banque Cantonale Vaudoise - 5,714 Denizbank A.S. - 347 Banco Santander – Madrid - 322 Unicredito Italiano - 302 Taipei Bank - 260 ING Bank N.V. - Vienna - 228 Westpac Banking Corporation - 226 BNP Paribas S.A. - 218 Oriental Bank of Commerce - 132 Kotak Mahindra Bank Limited - 129 Caixabank S.A. - 93 Development Bank Of Singapore - 80 Hsbc France (formerly Hsbc Ccf) - 74 Banco General S.A. - 62 Banco De Crédito Del Perú - 58 Hsbc Bank Canada - 47 Finans Bank A.S. - 46 Bangkok Bank Public Company Li. - 42 United Bank of India - 39 Banco Bolivariano C.A. - 38 Banco Bilbao Vizcaya Argentaria - 34 Hsbc Bank Brasil S.A. - Banco - 34 Banca Popolare Di Vicenza Scpa - 31 Bayerische Hypo- Und Vereinsba - 27 Banco Itau - 25 China Merchants Bank - 22 Hsbc Bank Middle East - 21 Banca Lombarda E Piemontese S. - 21 Export-Import Bank Of Thailand - 20 Cassa Di Risparmio In Bologna - 20 Fifth Third Bank - 15 Hdfc Bank Limited - 13 Union Bank of India - 10 Intesa Sanpaolo Spa - 7 Deutsche Bank Sociedad Anonima - 6 Industrial Bank of Korea - 5 Others - 4,169 Subtotal 1,697,872 1,550,925 Total 1,698,357 1,916,368
Schedule of outstanding amounts owed to the Central Bank of Chile	The outstanding amounts owed to the Central Bank of Chile under these credit lines are as follows: As of December 31, 2017 2016 MCh$ MCh$ Totals Line of credit for renegotiation with Central Bank of Chile 5 7
Loans from domestic financial institutions [Member]
Disclosure of financial liabilities [line items]
Schedule of loans from financial institutions	These obligations’ maturities are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 480 365,436 Due within 1 and 2 year - - Due within 2 and 3 year - - Due within 3 and 4 year - - Due after 5 years - - Total loans from domestic financial institutions 480 365,436
Loans from foreign financial institutions [Member]
Disclosure of financial liabilities [line items]
Schedule of loans from financial institutions	As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 1,477,318 525,521 Due within 1 and 2 year 185,519 725,315 Due within 2 and 3 year 35,035 186,352 Due within 3 and 4 year - 80,473 Due after 5 years - 33,264 Total loans from foreign financial institutions 1,697,872 1,550,925

ISSUED DEBT INSTRUMENTS AND O65

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2017
Issued Debt Instruments And Other Financial Liabilities
Schedule of composition of issued debt instruments and other financial liabilities	As of December 31, 2017 and 2016, composition of this item is as follows: As of December 31, 2017 2016 MCh$ MCh$ Other financial liabilities Obligations to public sector 59,470 61,490 Other domestic obligations 175,389 175,028 Foreign obligations 7,171 3,498 Subtotals 242,030 240,016 Issued debt instruments Mortgage finance bonds 34,479 46,251 Senior bonds 6,186,760 6,416,274 Mortgage bond 99,222 104,182 Subordinated bonds 773,192 759,665 Subtotals 7,093,653 7,326,372 Total 7,335,683 7,566,388
Schedule of debts classified	The Bank’s debts, both current and non-current, are summarized below: As of December 31, 2017 Current Non-current Total MCh$ MCh$ MCh$ Mortgage finance bonds 8,691 25,788 34,479 Senior bonds 337,166 5,849,594 6,186,760 Mortgage bond 4,541 94,681 99,222 Subordinated bonds 3 773,189 773,192 Issued debt instruments 350,401 6,743,252 7,093,653 Other financial liabilities 212,825 29,205 242,030 Total 563,226 6,772,457 7,335,683 As of December 31, 2016 Current Non-current Total MCh$ MCh$ MCh$ Mortgage finance bonds 11,236 35,015 46,251 Senior bonds 1,135,713 5,280,561 6,416,274 Mortgage bond 4,318 99,864 104,182 Subordinated bonds 4 759,661 759,665 Issued debt instruments 1,151,271 6,175,101 7,326,372 Other financial liabilities 158,488 81,528 240,016 Total 1,309,759 6,256,629 7,566,388
Schedule of mortgage finance bonds	Loans are indexed to UF and create a yearly interest yield of 5.41% as of December 31, 2017 (5.53% as of December 31, 2016). As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 8,691 11,236 Due after 1 year but within 2 years 6,744 8,673 Due after 2 year but within 3 years 6,096 6,928 Due after 3 year but within 4 years 5,155 6,246 Due after 4 year but within 5 years 4,101 5,278 Due after 5 years 3,692 7,890 Total mortgage bonds 34,479 46,251
Schedule of senior bonds by currency	The following table shows senior bonds by currency: As of December 31, 2017 2016 MCh$ MCh$ Santander bonds in UF 3,542,006 3,588,373 Santander bonds in USD 1,045,465 909,354 Santander bonds in CHF 268,281 568,549 Santander bonds in Ch$ 1,135,527 1,037,515 Santander bonds in AUD 14,534 60,890 Current bonds in JPY 126,059 179,426 Santander bonds in EUR 54,888 72,167 Total senior bonds 6,186,760 6,416,274
Schedule of placement of senior bonds	In 2017, the Bank issued bonds for UF 10,000,000; CLP 160,000,000,000; USD 770,000,000; and AUD 30,000,000 detailed as follows: Series Currency Amount Term Issuance rate Series approval date Series maximum amount Maturity date T9 UF 5,000,000 7.0 2.60% 01-02-2016 5,000,000 01-02-2024 T13 UF 5,000,000 9.0 2.75% 01-02-2016 5,000,000 01-02-2026 Total UF 10,000,000 10,000,000 SD CLP 60,000,000,000 5.0 5.50% 01-06-2014 200,000,000,000 01-06-2019 T16 CLP 100,000,000,000 6.0 5.20% 01-02-2016 100,000,000,000 01-08-2021 Total CLP 160,000,000,000 300,000,000,000 DN USD 100,000,000 3.0 Libor-USD 3M+0.80% 20-07-2017 100,000,000 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 21-07-2017 50,000,000 27-07-2020 DN USD 50,000,000 3.0 Libor-USD 3M+0.80% 24-07-2017 50,000,000 27-07-2020 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 10,000,000 23-11-2021 DN USD 10,000,000 4.0 Libor-USD 3M+0.83% 23-08-2017 10,000,000 23-11-2021 DN USD 50,000,000 3.0 Libor-USD 3M+0.75% 14-09-2017 50,000,000 15-09-2020 DN USD 500,000,000 3.0 2.50% 12-12-2017 500,000,000 15-12-2020 Total USD 770,000,000 770,000,000 AUD AUD 30,000,000 10.0 3.96% 05-12-2017 30,000,000 12-12-2027 Total AUD 30,000,000 30,000,000
Schedule of partial repurchase	During 2017, the Bank performed a partial repurchase of the following bonds: Date Type Currency Amount 06-03-2017 Senior USD 6,900,000 12-05-2017 Senior UF 1,000,000 16-05-2017 Senior UF 690,000 17-05-2017 Senior UF 15,000 26-05-2017 Senior UF 340,000 01-06-2017 Senior UF 590,000 02-06-2017 Senior UF 300,000 05-06-2017 Senior UF 130,000 19-06-2017 Senior UF 265,000 10-07-2017 Senior UF 770,000 21-07-2017 Senior UF 10,000 28-08-2017 Senior UF 200,000 28-08-2017 Senior UF 200,000 29-08-2017 Senior UF 2,000 29-08-2017 Senior UF 270,000 03-11-2017 Senior UF 14,000 29-11-2017 Senior UF 400,000 06-12-2017 Senior UF 20,000 12-12-2017 Senior CLP 10,990,000,000
Schedule of bank issued bonds	In 2016, the Bank issued bonds for UF 62,000,000; CLP 590,000,000,000; JPY 3,000,000,000; USD 215,000,000; EUR 104,000,000; and CHF 125,000,000 detailed as follows: Series Currency Amount Term Issuance rate Series approval date date Series maximum amount Maturity date R1 UF 15,000,000 5.5 2.50% 01-09-2015 15,000,000 01-03-2021 R2 UF 10,000,000 7.5 2.60% 01-09-2015 10,000,000 01-03-2023 R3 UF 10,000,000 10.5 3.00% 01-09-2015 10,000,000 01-03-2026 R5 UF 7,000,000 7.0 2.55% 01-12-2015 7,000,000 01-12-2022 R6 UF 7,000,000 9.0 2.65% 01-12-2015 7,000,000 01-12-2024 P9 UF 3,000,000 10.5 2.60% 01-03-2015 5,000,000 01-09-2025 T2 UF 5,000,000 4.5 2.25% 01-02-2016 5,000,000 01-08-2020 T5 UF 5,000,000 6.0 2.40% 01-02-2016 5,000,000 01-02-2022 Total UF 62,000,000 R4 CLP 100,000,000,000 5.5 5.50% 01-09-2015 100,000,000,000 01-03-2021 P4 CLP 50,000,000,000 5.0 4.80% 01-03-2015 150,000,000,000 01-03-2020 SD CLP 140,000,000,000 5.0 5.50% 01-06-2014 200,000,000,000 01-06-2019 SC CLP 200,000,000,000 10.0 5.95% 01-06-2014 200,000,000,000 01-06-2024 P3 CLP 50,000,000,000 7.0 5.50% 01-01-2015 50,000,000,000 01-01-2022 P1 CLP 50,000,000,000 10.0 5.80% 01-01-2015 50,000,000,000 01-01-2025 Total CLP 590,000,000,000 JPY JPY 3,000,000,000 5.0 0.115% 22-06-2016 3,000,000,000 29-06-2021 Total JPY 3,000,000,000 DN USD 10,000,000 5.0 Libor-USD 3M+1.05% 02-06-2016 10,000,000 09-06-2021 DN USD 10,000,000 5.0 Libor-USD 3M+1.22% 08-06-2016 10,000,000 17-06-2021 DN USD 10,000,000 5.0 Libor-USD 3M+1.20% 01-08-2016 10,000,000 16-08-2021 DN USD 185,000,000 5.0 Libor-USD 3M+1.20% 10-11-2016 185,000,000 28-11-2021 Total USD 215,000,000 EUR EUR 54,000,000 12.0 1.307% 05-08-2016 54,000,000 17-08-2028 EUR EUR 20,000,000 8.0 0.80% 04-08-2016 20,000,000 19-08-2024 EUR EUR 30,000,000 3.0 0.25% 09-12-2016 30,000,000 20-12-2019 Total EUR 104,000,000 CHF CHF 125,000,000 8.5 0.35% 14-11-2016 125,000,000 30-05-2025 Total CHF 125,000,000
Schedule of bank performed a partial repurchase	During 2016, the Bank performed a partial repurchase of the following bond: Date Type Currency Amount 13-01-2016 Senior USD 600,000 27-01-2016 Senior USD 960,000 08-03-2016 Senior USD 418,853,000 08-03-2016 Senior USD 140,104,000 10-05-2016 Senior USD 10,000,000 29-11-2016 Senior USD 6,895,000
Schedule of maturities of senior bonds	ii. The maturities of senior bonds are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 337,166 1,135,713 Due after 1 year but within 2 years 866,936 321,509 Due after 2 year but within 3 years 832,978 816,919 Due after 3 year but within 4 years 1,177,081 663,289 Due after 4 year but within 5 years 902,647 754,768 Due after 5 years 2,069,952 2,724,076 Total senior bonds 6,186,760 6,416,274
Schedule of mortgage bonds per currency	Detail of mortgage bonds per currency is as follows: As of December 31, 2017 2016 MCh$ MCh$ Mortgage bonds in UF 99,222 104,182 Total mortgage bonds 99,222 104,182
Schedule of maturities of mortgage bond	i. The maturities of Mortgage bond are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 4,541 4,318 Due after 1 year but within 2 years 7,291 6,932 Due after 2 year but within 3 years 7,526 7,156 Due after 3 year but within 4 years 7,769 7,386 Due after 4 year but within 5 years 8,019 7,626 Due after 5 years 64,076 70,764 Total Mortgage bonds 99,222 104,182
Schedule of subordinated bonds	Detail of the subordinated bonds per currency is as follows: As of December 31, 2017 2016 MCh$ MCh$ Subordinated bonds denominated in CLP 3 4 Subordinated bonds denominated in UF 773,189 759,661 Total subordinated bonds 773,192 759,665
Schedule of maturities of subordinated bonds	The maturities of subordinated bonds, are as follows: As of December 31, 2017 2016 MCh$ MCh$ Due within 1 year 3 4 Due after 1 year but within 2 years - - Due after 2 year but within 3 years - - Due after 3 year but within 4 years - - Due after 4 year but within 5 years - - Due after 5 years 773,189 759,661 Total subordinated bonds 773,192 759,665
Schedule of other financial liabilities	The composition of other financial obligations, by maturity, is detailed below: As of December 31, 2017 2016 MCh$ MCh$ Non-current portion: Due after 1 year but within 2 years 23,401 33,777 Due after 2 year but within 3 years 4,181 24,863 Due after 3 year but within 4 years 194 5,794 Due after 4 year but within 5 years 210 1,973 Due after 5 years 1,219 15,121 Non-current portion subtotal 29,205 81,528 Current portion: Amounts due to credit card operators 173,271 151,620 Acceptance of letters of credit 2,780 2,069 Other long-term financial obligations, short-term portion 36,774 4,799 Current portion subtotal 212,825 158,488 Total other financial liabilities 242,030 240,016

MATURITY OF FINANCIAL ASSETS 66

MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Tables)	12 Months Ended
MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Tables)	Dec. 31, 2017
Maturity Of Financial Assets And Liabilities
Schedule of assets and liabilities maturities	As of December 31, 2017 and 2016, the detail of the maturities of assets and liabilities is as follows: As of December 31, 2017 Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial assets Cash and deposits in banks 1,452,922 - - - 1,452,922 - - - - 1,452,922 Cash items in process of collection 668,145 - - - 668,145 - - - - 668,145 Trading investments - 72,983 4,024 68,277 145,284 110,824 90,507 139,121 340,452 485,736 Investments under resale agreements - - - - - - - - - - Financial derivative contracts - 135,780 198,876 410,415 745,071 385,428 371,090 737,058 1,493,576 2,238,647 Interbank loans () - 6,064 152,911 3,710 162,685 - - - - 162,685 Loans and accounts receivables from customers () 769,823 2,206,734 2,288,372 4,348,975 9,613,904 5,187,501 2,938,326 9,823,498 17,949,325 27,563,229 Available for sale investments - 58,850 11,788 102,600 173,238 556,289 975,372 869,647 2,401,308 2,574,546 Guarantee deposits (margin accounts) 323,767 - - - 323,767 - - - - 323,767 Total financial assets 3,214,657 2,480,411 2,655,971 4,933,977 13,285,016 6,240,042 4,375,295 11,569,324 22,184,661 35,469,677 Financial liabilities Deposits and other demand liabilities 7,768,166 - - - 7,768,166 - - - - 7,768,166 Cash items in process of being cleared 486,726 - - - 486,726 - - - - 486,726 Obligations under repurchase agreements - 268,061 - - 268,061 - - - - 268,061 Time deposits and other time liabilities 121,479 5,120,171 4,201,271 2,299,018 11,741,939 106,833 2,811 62,362 172,006 11,913,945 Financial derivative contracts - 144,410 196,444 356,288 697,142 378,582 358,358 705,406 1,442,346 2,139,488 Interbank borrowings 4,130 46,013 397,419 1,030,241 1,477,803 220,554 - - 220,554 1,698,357 Issued debt instruments - 21,043 55,119 274,239 350,401 1,727,571 2,104,771 2,910,910 6,743,252 7,093,653 Other financial liabilities 177,663 701 2,583 31,879 212,826 27,581 404 1,219 29,204 242,030 Guarantees received (margin accounts) 408,313 - - - 408,313 - - - - 408,313 Total financial liabilities 8,966,477 5,600,399 4,852,836 3,991,665 23,411,377 2,461,121 2,466,344 3,679,897 8,607,362 32,018,739 () Interbank loans are presented on a gross basis. The amount of allowance is Ch$472 million. (*) Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million. As of December 31, 2016 Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal More than 1 year Total MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Financial assets Cash and deposits in banks 2,279,389 - - - 2,279,389 - - - - 2,279,389 Cash items in process of collection 495,283 - - - 495,283 - - - - 495,283 Trading investments - 52,443 13,252 118,845 184,540 75,378 106,808 30,261 212,447 396,987 Investments under resale agreements - 6,736 - - 6,736 - - - - 6,736 Financial derivative contracts - 82,243 120,653 292,801 495,697 531,094 357,833 1,116,158 2,005,085 2,500,782 Interbank loans () - 12,859 135,756 124,143 272,758 44 - 5 49 272,807 Loans and accounts receivables from customers (*) 717,306 2,393,216 2,108,001 4,488,993 9,707,516 4,937,271 2,909,140 9,379,697 17,226,108 26,933,624 Available for sale investments - 1,581,682 250,222 314,842 2,146,746 37,974 379,976 824,210 1,242,160 3,388,906 Guarantee deposits (margin accounts) 396,289 - - - 396,289 - - - - 396,289 Total financial assets 3,888,267 4,129,179 2,627,884 5,339,624 15,984,954 5,581,761 3,753,757 11,350,331 20,685,849 36,670,803 Financial liabilities Deposits and other demand liabilities 7,539,315 - - - 7,539,315 - - - - 7,539,315 Cash items in process of being cleared 288,473 - - - 288,473 - - - - 288,473 Obligations under repurchase agreements - 212,437 - - 212,437 - - - - 212,437 Time deposits and other time liabilities 121,527 6,105,767 4,193,906 2,537,299 12,958,499 118,101 13,913 61,196 193,210 13,151,709 Financial derivative contracts - 92,335 122,565 263,893 478,793 494,539 346,948 971,881 1,813,368 2,292,161 Interbank borrowings 4,557 373,423 115,769 1,154,063 1,647,812 233,542 35,014 - 268,556 1,916,368 Issued debt instruments - 43,141 185,425 922,705 1,151,271 1,168,117 1,444,593 3,562,391 6,175,101 7,326,372 Other financial liabilities 153,049 1,461 1,161 2,817 158,488 58,641 7,766 15,121 81,528 240,016 Guarantees received (margin accounts) 480,926 - - - 480,926 - - - - 480,926 Total financial liabilities 8,587,847 6,828,564 4,618,826 4,880,777 24,916,014 2,072,940 1,848,234 4,610,589 8,531,763 33,447,777 () Interbank loans are presented on a gross basis. The amount of allowance is Ch$4,135 million. (**) Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 429,442 million, Mortgage loans Ch$ 57,009 million, and Consumer loans Ch$ 300,019 million.

PROVISIONS (Tables)

PROVISIONS (Tables)	12 Months Ended
PROVISIONS (Tables)	Dec. 31, 2017
Provisions [abstract]
Schedule of composition provisions	As of December 31, 2017 and 2016, the composition is as follows: As of December 31, 2017 2016 MCh$ MCh$ Provisions for personnel salaries and expenses 97,576 72,592 Provisions for mandatory dividends 168,840 142,815 Provisions for contingent loan risk 10,079 11,399 Provisions for contingencies associated with administrative claims and leasing contracts 27,303 65,404 Total 303,798 292,210
Schedule of activity regarding provision	Below is the activity regarding provisions during the years ended December 31, 2017 and 2016. Personnel salaries and expenses Mandatory Dividend Contingent loan Contingencies Total MCh$ MCh$ MCh$ MCh$ MM$ Balances as of January 1, 2017 72,592 142,815 11,399 65,404 292,210 Provisions established 106,687 168,840 7,341 8,645 291,513 Application of provisions (81,703) (142,815) - (389) (224,907) Provisions released - - (8,661) (46,357) (55,018) Reclassifications - - - - - Other - - - - - Balances as of December 31, 2017 97,576 168,840 10,079 27,303 303,798 Balances as of January 1, 2016 64,861 134,539 10,750 64,848 274,998 Provisions established 80,298 142,815 9,789 85,492 318,394 Application of provisions (72,567) (134,539) - (135) (207,241) Provisions released - - (9,140) (84,801) (93,941) Reclassifications - - - - - Other - - - - - Balances as of December 31, 2016 72,592 142,815 11,399 65,404 292,210
Schedule of provisions for personnel salaries and expenses	Provisions for personnel salaries and expenses: As of December 31, 2017 2016 MCh$ MCh$ Provision for seniority compensation 17,874 10,376 Provision for stock-based personnel benefits - - Provision for performance bonds 53,947 38,510 Provision for vacations 23,039 21,800 Provision for other personnel benefits 2,716 1,906 Total 97,576 72,592

OTHER LIABILITIES (Tables)

OTHER LIABILITIES (Tables)	12 Months Ended
OTHER LIABILITIES (Tables)	Dec. 31, 2017
Other Liabilities
Schedule of other liabilities	The other liabilities line item is as follows: As of December 31, 2017 2016 MCh$ MCh$ Accounts and notes payable 196,965 154,159 Unearned income 601 509 Guarantees received (margin accounts) (1) 408,313 480,926 Notes payable through brokerage and simultaneous transactions 17,799 27,745 Other payable obligations (2) 58,921 80,100 Withheld VAT 1,887 1,964 Other liabilities (3) 60,877 50,382 Total 745,363 795,785 (1) Guarantee deposits (margin accounts) correspond to collateral associated to derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result in the Bank delivering or receiving collateral. (2) Other payable obligations mainly relates to settlement of derivatives and other financial transactions derived from the operation of the Bank. (3) Other liabilities: mainly include reimbursement of insurance commissions.

CONTINGENCIES AND COMMITMENTS (

CONTINGENCIES AND COMMITMENTS (Tables)	12 Months Ended
CONTINGENCIES AND COMMITMENTS (Tables)	Dec. 31, 2017
Contingencies And Commitments
Schedule of contractual obligations	The following table shows the Bank’s contractual obligations to issue loans: As of December 31, 2017 2016 MCh$ MCh$ Letters of credit issued 201,699 158,800 Foreign letters of credit confirmed 75,499 57,686 Guarantees 1,823,793 1,752,610 Personal guarantees 81,577 125,050 Subtotal 2,182,568 2,094,146 Available on demand credit lines 8,135,489 7,548,820 Other irrevocable credit commitments 260,691 260,266 Total 10,578,748 9,903,232
Schedule of held securities	The Bank holds securities in the normal course of its business as follows: As of December 31, 2017 2016 MCh$ MCh$ Third party operations Collections 175,200 163,303 Assets from third parties managed by the Bank and its affiliates 1,660,804 1,586,405 Subtotal 1,836,004 1,749,708 Custody of securities Securities held in custody 383,002 390,155 Securities held in custody deposited in other entity 760,083 687,610 Issued securities held in custody 22,046,701 18,768,572 Subtotal 23,189,786 19,846,337 Total 25,025,790 21,596,045

EQUITY (Tables)

EQUITY (Tables)	12 Months Ended
EQUITY (Tables)	Dec. 31, 2017
EQUITY
Schedule of activity shares	The activity with respect to shares during 2017, 2016 and 2015 was as follows: SHARES As of December 31, 2017 2016 2015 Issued as of January 1 188,446,126,794 188,446,126,794 188,446,126,794 Issuance of paid shares - - - Issuance of outstanding shares - - - Stock options exercised - - - Issued as of December 31, 188,446,126,794 188,446,126,794 188,446,126,794
Schedule of shareholder composition	As of December 31, 2017 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon - 31,238,866,071 31,238,866,071 16.58 Banks on behalf of third parties 13,892,691,988 - 13,892,691,988 7.37 Pension funds (AFP) on behalf of third parties 6,896,552,755 - 6,896,552,755 3.66 Stock brokers on behalf of third parties 3,762,310,365 - 3,762,310,365 2.00 Other minority holders 6,062,704,347 - 6,062,704,347 3.21 Total 157,207,260,723 31,238,866,071 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. As of December 31, 2016 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon (1) - 34,800,933,671 34,800,933,671 18.47 Banks on behalf of third parties 12,257,100,312 - 12,257,100,312 6.50 Pension funds (AFP) on behalf of third parties 6,990,857,997 - 6,990,857,997 3.71 Stock brokers on behalf of third parties 3,071,882,351 - 3,071,882,351 1.63 Other minority holders 4,732,351,195 - 4,732,351,195 2.51 Total 153,645,193,123 34,800,933,671 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. As of December 31, 2015 the shareholder composition was as follows: Corporate Name or Shareholder's Name Shares ADRs () Total % of equity holding Santander Chile Holding S.A. 66,822,519,695 - 66,822,519,695 35.46 Teatinos Siglo XXI Inversiones Limitada 59,770,481,573 - 59,770,481,573 31.72 The Bank New York Mellon (1) - 32,516,063,671 32,516,063,671 17.25 Banks on behalf of third parties 11,878,070,560 - 11,878,070,560 6.30 Pension funds (AFP) on behalf of third parties 8,887,560,424 - 8,887,560,424 4.72 Stock brokers on behalf of third parties 3,460,285,074 - 3,460,285,074 1.84 Other minority holders 5,111,145,797 - 5,111,145,797 2.71 Total 155,930,063,123 32,516,063,671 188,446,126,794 100.00 () American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets. (1) As of August 4, 2015, Banco Santander Chile signed a contract which appoints The Bank of New York Mellon as the commercial bank authorized to trade ADRs, replacing J.P.Morgan Chase Bank NA.
Schedule of basic and diluted earnings per share	As of December 31, 2017, 2016 and 2015 the basic and diluted earnings per share were as follows: As of December 31, 2017 2016 2015 MCh$ MCh$ MCh$ a) Basic earnings per share Total attributable to the equity holders of the Bank 562,801 476,067 448,466 Weighted average number of outstanding shares 188,446,126,794 188,446,126,794 188,446,126,794 Basic earnings per share (in Ch$) 2,987 2,526 2,380 b) Diluted earnings per share Total attributable to the equity holders of the Bank 562,801 476,067 448,466 Weighted average number of outstanding shares 188,446,126,794 188,446,126,794 188,446,126,794 Adjusted number of shares 188,446,126,794 188,446,126,794 188,446,126,794 Diluted earnings per share (in Ch$) 2,987 2,526 2,380
Schedule of other comprehensive income from available for sale investments and cash flow hedges	Other comprehensive income from available for sale investments and cash flow hedges: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Available for sale investments As of January 1, 7,375 (7,093) 21,684 Gain (losses) on the re-measurement of available for sale investments, before tax (10,384) 2,267 (51,178) Recycling from other comprehensive income to income for the year 4,864 12,201 22,401 Subtotals (5,520) 14,468 (28,777) Total 1,855 7,375 (7,093) Cash flow hedges As of January 1, 2,288 8,626 10,725 Gains (losses) on the re-measurement of cash flow hedges, before tax (5,850) (6,261) (2,105) Recycling adjustments on cash flow hedges, before tax - (77) 6 Amounts removed from equity and included in carrying amount of non-financial asset (liability) which acquisition or incurrence was hedged as a highly probable transaction - - - Subtotals (5,850) (6,338) (2,099) Total (3,562) 2,288 8,626 Other comprehensive income, before taxes (1,707) 9,663 1,533 Income tax related to other comprehensive income components Income tax relating to available for sale investments (473) (1,770) 1,596 Income tax relating to cash flow hedges 908 (549) (1,940) Total 435 (2,319) (344) Other comprehensive income, net of tax (1,272) 7,344 1,189 Attributable to: Equity holders of the Bank (2,312) 6,640 1,288 Non-controlling interest 1,040 704 (99)

NON-CONTROLLING INTEREST (Table

NON-CONTROLLING INTEREST (Tables)	12 Months Ended
NON-CONTROLLING INTEREST (Tables)	Dec. 31, 2017
Non-controlling Interest
Schedule of non-controlling interest included in the equity and the income	The non-controlling interest included in the equity and the income from the subsidiaries is summarized as follows: Other comprehensive income As of December 31, 2017 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 389 132 - - - 132 Santander S.A. Sociedad Securitizadora 0.36 1 - - - - - Santander Corredores de Bolsa Limitada 49.00 21,000 702 470 (134) 336 1,038 Santander Corredora de Seguros Limitada 0.25 167 4 - - - 4 Subtotal 21,557 838 470 (134) 336 1,174 Entities controlled through other considerations: Bansa Santander S.A. (1) 100.00 17,401 10,869 - - - 10,869 Santander Gestión de Recaudación y Cobranzas Limitada 100.00 2,925 741 - - - 741 Subtotal 20,326 11,610 - - - 11,610 Total 41,883 12,448 470 (134) 336 12,784 (1) In September 2017, Bansa Santander S.A. celebrated a legal cession of rights,which generated an income of Ch$20,663 million before tax (Ch$15,197 million net of taxes) Other comprehensive income As of December 31, 2016 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 492 116 - - - 116 Santander S.A. Sociedad Securitizadora 0.36 2 - - - - - Santander Corredores de Bolsa Limitada (1) 49.41 19,966 1,130 1,054 (251) 803 1,933 Santander Corredora de Seguros Limitada 0.25 164 7 - - - 7 Subtotal 20,624 1,253 1,054 (251) 803 2.056 Entities controlled through other considerations: Bansa Santander S.A. 100.00 6,533 529 - - - 529 Santander Gestión de Recaudación y Cobranzas Limitada 100.00 2,184 583 - - - 583 Subtotal 8,717 1,112 - - - 1,112 Total 29,341 2,365 1,054 (251) 803 3,168 (1) Ex Santander S.A. Corredores de Bolsa, See Note1. Other comprehensive income As of December 31, 2015 Non-controlling Equity Income Available for sale investments Deferred tax Total other comprehensive income Comprehensive income % MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Subsidiaries: Santander Agente de Valores Limitada 0.97 652 98 (4) 1 (3) 95 Santander S.A. Sociedad Securitizadora 0.36 2 - - - - - Santander S.A.a Corredores de Bolsa Ltda 49.41 21,765 816 (128) 29 (99) 717 Santander Corredora de Seguros Limitada 0.25 156 (5) - - - (5) Subtotals 22,575 909 (132) 30 (102) 807 Entities controlled through other considerations: Bansa Santander S.A. 100.00 6,004 334 - - - 334 Santander Gestión de Recaudación y Cobranzas Limitada (1) 100.00 1,602 564 - - - 564 Multinegocios S.A. 100.00 - 310 - - - 310 Servicios Administrativos y Financieros Limitada 100.00 - 550 - - - 550 Multiservicios de Negocios Limitada 100.00 - 596 - - - 596 Subtotals 7,606 2.354 - - - 2,354 Total 30,181 3.263 (132) 30 (102) 3,161 (1)
Schedule of financial information of the subsidiaries included in the consolidation of the Bank that possess non-controlling interests	a) The overview of the financial information of the subsidiaries included in the consolidation of the Bank that possess non-controlling interests is as follows, which does not include consolidation or conforming accounting policy adjustments: As of December 31, 2017 2016 2015 Net income Net income Net Assets Liabilities Capital Assets Liabilities Capital Assets Liabilities Capital income MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Santander Corredora de Seguros Limitada 76,177 9,803 64,937 1,437 75,000 10,065 62,276 2,659 72,860 10,588 60,765 1,507 Santander Corredores de Bolsa Limitada 88,711 45,855 41,424 1,432 86,473 45,724 38,356 2,393 71,118 26,763 42,618 1,737 Santander Agente de Valores Limitada 44,910 4,732 26,569 13,609 54,486 3,666 38,851 11,969 131,305 64,049 57,554 9,702 Santander S.A. Sociedad Securitizadora 400 50 432 (82) 509 77 512 (80) 566 53 561 (48) Santander Gestión de Recaudación y Cobranzas Ltda. 10,826 7,901 2,184 741 8,547 6,363 1,602 582 6,194 4,592 1,038 564 Bansa Santander S.A. 25,535 8,134 6,533 10,868 31,301 24,768 6,004 529 31,631 25,627 5,670 334 Total 246,559 76,475 142,079 28,005 256,316 90,663 147,601 18,052 313,674 131,672 168,206 13,796

INTEREST INCOME (Tables)

INTEREST INCOME (Tables)	12 Months Ended
INTEREST INCOME (Tables)	Dec. 31, 2017
Interest Income
Schedule of income from interest	For the years ended December 31, 2017, 2016 and 2015 the income from interest, was attributable to the following items: For the years ended December 31, 2017 2016 2015 Interest Inflation adjustments Prepaid fees Total Interest Inflation adjustments Prepaid fees Total Interest Inflation adjustments Prepaid fees Total Items MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Resale agreements 939 - - 939 1,488 - - 1,488 1,075 - - 1,075 Interbank loans 969 - - 969 295 - - 295 375 - - 375 Commercial loans 752,013 85,389 10,525 847,927 742,432 130,904 7,659 880,995 687,464 168,752 8,494 864,710 Mortgage loans 320,041 149,303 414 469,758 304,116 228,081 7,012 539,209 259,941 286,437 23,191 569,569 Consumer loans 612,932 363 4,738 618,033 604,152 660 4,318 609,130 586,385 3,418 3,706 593,509 Investment instruments 74,000 5,797 - 79,797 75,808 2,916 - 78,724 60,004 7,616 - 67,620 Other interest income 12,172 1,538 - 13,710 11,136 2,445 - 13,581 10,111 5,831 - 15,942 Interest income not including income from hedge accounting 1,773,066 242,390 15,677 2,031,133 1,739,427 365,006 18,989 2,123,422 1,605,355 472,054 35,391 2,112,800
Schedule of interest expense	For the years ended December 31, 2017, 2016 and 2015, the expense from interest expense, excluding expense from hedge accounting, is as follows: For the years ended December 31, 2017 2016 2015 Interest Inflation adjustments Total Interest Inflation adjustments Total Interest Inflation adjustments Total Items MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Demand deposits (13,851) (695) (14,546) (16,003) (1,043) (17,046) (13,875) (1,343) (15,218) Repurchase agreements (6,514) - (6,514) (2,822) - (2,822) (6,893) - (6,893) Time deposits and liabilities (341,821) (20,509) (362,330) (399,720) (38,946) (438,666) (346,174) (47,370) (393,544) Interbank loans (26,805) - (26,805) (19,803) - (19,803) (14,998) (2) (15,000) Issued debt instruments (220,027) (76,170) (296,197) (197,973) (105,452) (303,425) (183,561) (113,029) (296,590) Other financial liabilities (2,946) (303) (3,249) (3,008) (781) (3,789) (3,070) (1,180) (4,250) Other interest expense (5,236) (4,973) (10,209) (5,211) (8,874) (14,085) (3,456) (14,776) (18,232) Interest expense not including expenses from hedge accounting (617,200) (102,650) (719,850) (644,540) (155,096) (799,636) (572,027) (177,700) (749,727)
Schedule of income and expense from interest	For the years ended December 31, 2017, 2016 and 2015, the income and expense from interest is as follows: For the years ended December 31, 2017 2016 2015 Items MCh$ MCh$ MCh$ Interest income not including income from hedge accounting 2,031,133 2,123,422 2,112,800 Interest expense not including expense from hedge accounting (719,850) (799,636) (749,727) Net Interest income (expense) from hedge accounting 1,311,283 1,323,786 1,363,073 Hedge accounting (net) 15,408 (42,420) (107,867) Total net interest income 1,326,691 1,281,366 1,255,206

FEES AND COMMISSIONS (Tables)

FEES AND COMMISSIONS (Tables)	12 Months Ended
FEES AND COMMISSIONS (Tables)	Dec. 31, 2017
Fees And Commissions
Schedule of fees and commission	This item includes the amount of fees earned and paid during the year, except for those which are an integral part of the financial instrument’s effective interest rate: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Fee and commission income Fees and commissions for lines of credits and overdrafts 7,413 5,754 6,597 Fees and commissions for guarantees and letters of credit 33,882 35,911 35,276 Fees and commissions for card services 201,791 195,566 175,262 Fees and commissions for management of accounts 31,901 31,540 30,291 Fees and commissions for collections and payments 44,312 31,376 30,399 Fees and commissions for intermediation and management of securities 10,090 9,304 10,000 Insurance brokerage fees 36,430 40,882 39,252 Office banking 15,669 14,145 15,224 Fees for other services rendered 43,123 38,038 35,978 Other fees earned 30,947 28,668 24,621 Total 455,558 431,184 402,900 For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Fee and commission expense Compensation for card operation (149,809) (143,509) (129,196) Fees and commissions for securities transactions (858) (946) (1,315) Office banking (15,283) (14,671) (15,320) Other fees (10,545) (17,634) (19,442) Total (176,495) (176,760) (165,273) Net fees and commissions income 279,063 254,424 237,627

NET INCOME (EXPENSE) FROM FIN74

NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS (Tables)	12 Months Ended
NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS (Tables)	Dec. 31, 2017
Net Income Expense From Financial Operations
Schedule of income (expense) from financial operations	For the years ended December 31, 2017, 2016 and 2015, the detail of income (expense) from financial operations is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income (expense) from financial operations Trading derivatives (18,974) (395,209) (503,981) Trading investments 10,008 18,229 21,505 Sale of loans and accounts receivables from customers Current portfolio 3,020 1,469 921 Charged-off portfolio 3,020 2,720 (58) Available for sale investments 8,956 14,598 23,655 Repurchase of issued bonds (742) (8,630) (14) Other income (expense) from financial operations (2,492) (211) 75 Total income (expense) 2,796 (367,034) (457,897)

NET FOREIGN EXCHANGE GAIN (LO75

NET FOREIGN EXCHANGE GAIN (LOSS) (Tables)	12 Months Ended
NET FOREIGN EXCHANGE GAIN (LOSS) (Tables)	Dec. 31, 2017
Net Foreign Exchange Gain Loss
Schedule of net foreign exchange income	For the years ended December 31, 2017, 2016 and 2015 net foreign exchange income is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Net foreign exchange gain (loss) Net profit (loss) from currency exchange differences 113,115 116,117 (197,875) Hedging derivatives 22,933 399,875 777,254 Income from assets indexed to foreign currency (9,190) (8,745) 25,421 Income from liabilities indexed to foreign currency 98 145 (1,404) Total 126,956 507,392 603,396

PROVISIONS FOR LOAN LOSSES (Tab

PROVISIONS FOR LOAN LOSSES (Tables)	12 Months Ended
PROVISIONS FOR LOAN LOSSES (Tables)	Dec. 31, 2017
Provisions For Loan Losses
Schedule of provisions for loan losses	For the years ended December 31, 2017, 2016 and 2015 activity for provisions for loan losses is as follows: Loans and accounts receivable from customers Total For the year ended December 31, 2017 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (15,699) - - - - - (15,699) Provisions established (307) (64,658) (148,681) (43,621) (252,038) (3,117) (4,224) (516,646) Total provisions and charge-offs (307) (80,357) (148,681) (43,621) (252,038) (3,117) (4,224) (532,345) Provisions released 3,970 55,925 20,491 11,427 46,089 7,001 1,660 146,563 Recovery of loans previously charged off - 11,114 21,499 10,942 39,972 - - 83,527 Net charge to income 3,663 (13,318) (106,691) (21,252) (165,977) 3,884 (2,564) (302,255) Loans and accounts receivable from customers Total For the year ended December 31, 2016 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (11,222) - - - - - (11,222) Provisions established (3,052) (61,002) (133,855) (50,892) (280,544) (11,986) (2,909) (544,240) Total provisions and charge-offs (3,052) (72,224) (133,855) (50,892) (280,544) (11,986) (2,909) (555,462) Provisions released 83 43,183 14,432 34,246 30,790 6,963 5,384 135,081 Recovery of loans previously charged off - 11,142 16,043 10,041 41,072 - - 78,298 Net charge to income (2,969) (17,899) (103,380) (6,605) (208,682) (5,023) 2,475 (342,083) Loans and accounts receivable from customers Total For the year ended December 31, 2015 Interbank loans Individual Commercial loans Mortgage loans Consumer loans Contingent loans Individual Group Group Group Individual Group MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Charged-off individually significant loans - (12,955) - - - - - (12,955) Provisions established (1,357) (124,968) (136,778) (34,373) (248,937) (2,808) (2,601) (551,822) Total provisions and charge-offs (1,357) (137,923) (136,778) (34,373) (248,937) (2,808) (2,601) (564.777) Provisions released 192 46,614 17,885 7,205 18,126 5,042 2,296 97,360 Recovery of loans previously charged off - 8.978 17,054 6,543 35,565 - - 68,140 Net charge to income (1,165) (82,331) (101,839) (20,625) (195,246) 2,234 (305) (399.277)
Schedule of charge-off of individually significant loans	The detail of Charge-off of individually significant loans, is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Charge-off of loans 51,978 47,605 50,656 Provision applied (36,279) (36,383) (37,701) Net charge offs of individually significant loans 15,699 11,222 12,955

PERSONNEL SALARIES AND EXPENS77

PERSONNEL SALARIES AND EXPENSES (Tables)	12 Months Ended
PERSONNEL SALARIES AND EXPENSES (Tables)	Dec. 31, 2017
Personnel Salaries And Expenses
Schedule of personnel expenses	For the years ended December 31, 2017, 2016 and 2015, the composition of personnel salaries and expenses is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Personnel compensation 250,962 249,703 233,707 Bonuses or gratifications 75,181 77,649 78,260 Stock-based benefits 2,752 331 66 Seniority compensation 26,120 26,263 34,012 Pension plans 2,039 (150) 431 Training expenses 2,867 2,835 3,186 Day care and kindergarten 2,505 3,072 2,992 Health funds 4,748 4,777 4,474 Welfare funds 896 806 754 Other personnel expenses 28,897 29,847 29,181 Total 396,967 395,133 387,063

ADMINISTRATIVE EXPENSES (Tables

ADMINISTRATIVE EXPENSES (Tables)	12 Months Ended
ADMINISTRATIVE EXPENSES (Tables)	Dec. 31, 2017
Administrative Expenses
Schedule of administrative expenses	For the years ended December 31, 2017, 2016 and 2015, the composition of the item is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ General administrative expenses 139,418 138,974 127,826 Maintenance and repair of property, plant and equipment 21,359 19,901 20,002 Office lease 26,136 28,098 27,472 Equipment lease 96 280 134 Insurance payments 3,354 3,842 3,656 Office supplies 6,862 5,747 6,232 IT and communication expenses 39,103 37,351 28,420 Heating, and other utilities 5,468 4,863 4,764 Security and valuables transport services 12,181 14,793 15,393 Representation and personnel travel expenses 4,262 5,440 4,590 Judicial and notarial expenses 967 952 2,103 Fees for technical reports and auditing 9,379 7,631 7,301 Other general administrative expenses 10,244 10,076 7,759 Outsourced services 57,400 55,757 60,913 Data processing 34,880 36,068 39,286 Products sale - - 226 Archive services 3,324 4,427 1,047 Valuation services 2,419 3,489 2,969 Outsourcing 6,878 5,404 7,275 Other 9,899 6,369 10,110 Board expenses 1,290 1,371 1,465 Marketing expenses 18,877 17,844 18,483 Taxes, payroll taxes, and contributions 13,118 12,467 11,844 Real estate taxes 1,443 1,435 1,813 Patents 1,646 1,618 1,589 Other taxes 24 93 3 Contributions to SBIF 10,005 9,321 8,439 Total 230,103 226,413 220,531

DEPRECIATION, AMORTIZATION, A79

DEPRECIATION, AMORTIZATION, AND IMPAIRMENT (Tables)	12 Months Ended
DEPRECIATION, AMORTIZATION, AND IMPAIRMENT (Tables)	Dec. 31, 2017
Depreciation Amortization And Impairment
Schedule of depreciation, amortization and impairment charges	Depreciation, amortization and impairment charges for the years ended December 31, 2017, 2016 and 2015, are detailed below: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Depreciation and amortization Depreciation of property, plant, and equipment (55,623) (45,025) (36,195) Amortization of Intangible assets (22,200) (20,334) (17,419) Total depreciation and amortization (77,823) (65,359) (53,614) Impairment of property, plant, and equipment (354) (234) (21) Impairment of intangibles (5,290) - - Total (83,467) (65,593) (53,635)

OTHER OPERATING INCOME AND EX80

OTHER OPERATING INCOME AND EXPENSES (Tables)	12 Months Ended
OTHER OPERATING INCOME AND EXPENSES (Tables)	Dec. 31, 2017
Other Operating Income And Expenses
Schedule of other operating income	Other operating income is comprised of the following components: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Income from assets received in lieu of payment 3,330 1,663 2,455 Income from sale of investments in other companies - - 617 Release of contingencies provisions (1) 29,903 - - Other income Leases 264 519 708 Income from sale of property, plant and equipment (2) 23,229 2,017 381 Recovery of provisions for contingencies - - - Compensation from insurance companies due to damages 1,237 1,530 435 Other 4,053 698 1,843 Subtotal 28,783 4,764 3,367 Total 62,016 6,427 6,439 (1) (2)
Schedule of other operating expenses	For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Allowances and expenses for assets received in lieu of payment Provision on assets received in lieu of payment 3,912 9,246 7,803 Expenses for maintenance of assets received in lieu of payment 1,679 2,170 2,397 Subtotal 5,591 11,416 10,200 Credit card expenses 3,070 3,636 4,624 Customer services 2,563 3,734 3,919 Other expenses Operating charge-offs 1,607 6,146 5,359 Life insurance and general product insurance policies 23,475 18,393 11,225 Additional tax on expenses paid overseas - 142 2,651 Provisions for contingencies - 4,238 15,230 Retail association payment 912 - - Other 31,195 21,197 5,521 Subtotal 57,189 50,116 39,986 Total 68,413 68,902 58,729

TRANSACTIONS WITH RELATED PAR81

TRANSACTIONS WITH RELATED PARTIES (Tables)	12 Months Ended
TRANSACTIONS WITH RELATED PARTIES (Tables)	Dec. 31, 2017
Transactions With Related Parties
Schedule of loans and accounts receivable as well as contingent loans that correspond to related entities	Below are loans and accounts receivable as well as contingent loans that correspond to related entities: As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Loans and accounts receivable: Commercial loans 80,076 771 3,947 7,793 81,687 533 4,595 7,100 77,388 565 5,841 1,963 Mortgage loans - - 18,796 - - - 18,046 - - - 20,559 - Consumer loans - - 4,310 - - - 3,783 - - - 2,274 - Loans and accounts receivable: 80,076 771 27,053 7,793 81,687 533 26,424 7,100 77,388 565 28,674 1,963 Allowance for loan losses (209) (9) (177) (18) (209) (35) (87) (34) (213) (190) (62) (20) Net loans 79,867 762 26,876 7,775 81,478 498 26,337 7,066 77,175 375 28,612 1,943 Guarantees 361,452 - 23,868 7,164 434,141 - 23,636 5,486 499,803 - 25,493 1,632 Contingent loans: Personal guarantees - - - - - - - - - - - - Letters of credit 19,251 - - 33 27,268 - - - 29,275 - - - Guarantees 377,578 - - - 437,101 - - - 510,309 - - 2 Contingent loans: 396,829 - - 33 464,369 - - - 539,584 - - 2 Allowance for contingent loans (4) - - 1 (5) - - - (11) - - - Net contingent loans 396,825 - - 34 464,364 - - - 539,573 - - 2
Schedule of loan activity to related parties	Loan activity to related parties during 2017, 2016 and 2015 is shown below: As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key Personnel Other Companies of the Group Associated companies Key Personnel Other Companies of the Group Associated companies Key Personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Opening balances as of January 1, 546,058 532 26,423 7,100 616,968 565 28,675 1,966 500,449 9,614 27,087 9,516 Loans granted 78,214 318 7,777 1,050 122,729 203 8,580 6,808 276,383 7 8,991 4,113 Loans payments (147,366) (79) (7,149) (324) (193,189) (236) (10,832) (1,674) (159,864) (9,056) (7,403) (11,663) Total 476,906 771 27,051 7,826 546,508 532 26,423 7,100 616,968 565 28,675 1,966
Schedule of assets and liabilities with related parties	Assets and liabilities with related parties As of December 31, 2017 2016 2015 Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Assets Cash and deposits in banks 74,949 - - - 187,701 - - - 23,578 - - - Trading investments - - - - - - - - - - - - Obligations under repurchase agreements Loans - - - - - - - - - - - - Financial derivative contracts 545,028 86,011 - - 742,851 33,433 - - 771,774 24,773 - - Available for sale investments - - - - - - - - - - - - Other assets 8,480 118,136 - - 4,711 67,454 - - 3,218 19,101 - - Liabilities Deposits and other demand liabilities 24,776 25,805 2,470 221 6,988 7,141 2,883 630 9,987 8,535 2,454 1,373 Obligations under repurchase agreements Loans 50,945 - - - 56,167 - - - 12,006 - - - Time deposits and other time liabilities 785,988 27,968 3,703 3,504 1,545,835 6,219 2,525 2,205 1,360,572 234 2,728 898 Financial derivative contracts 418,647 142,750 - 7,190 954,575 54,691 - - 1,323,996 23,326 - - Interbank borrowing - - - - 6,165 - - - - - - - Issued debt instruments 482,626 - - - 484,548 - - - 398,565 - - - Other financial liabilities 4,919 - - - 8,970 - - - 2,409 - - - Other liabilities 164,303 58,168 - - 446 44,329 - - 376 19,541 - -
Schedule of income (expense) recorded due to transactions with related parties	Income (expense) recorded due to transactions with related parties For the years ended December 31, 2017 2016 2015 Companies of the Group Associated Companies Key personnel Other Companies of the Group Associated companies Key personnel Other Companies of the Group Associated Companies Key personnel Other MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ MCh$ Income (expense) recorded Interest income and inflation-indexation adjustments (43,892) - 1,051 - (39,279) 40 1,164 115 (10,986) - 1,664 116 Fee and commission income and expenses 72,273 15,404 224 1 56,952 22,322 204 20 35,955 77 208 39 Net income (expense) from financial operations and net foreign exchange gain (loss) () 363,108 (48,453) (3) 19 (343,963) (48,373) (88) 2 (321,985) (16,845) 15 6 Other operating income and expenses 21,670 (1,454) - - 931 (2,239) - - 955 (1,027) - - Key personnel compensation and expenses - - (43,037) - - - (37,328) - - - (39,323) - Administrative and other expenses (48,246) (47,220) - - (35,554) (43,115) - - (30,591) (41,691) - - Total 364,913 (81,723) (41,765) 20 (360,913) (71,365) (36,048) 137 (326,652) (59,486) (37,436) 161 () Primarily relates to derivative contracts used to financially cover exchange risk of assets and liabilities that cover positions of the Bank and its subsidiaries.
Schedule of payments to Board members and key management personnel	The compensation received by key management personnel, including Board members and all the executives holding manager positions shown in the “Personnel salaries and expenses” and/or “Administrative expenses” items of the Consolidated Statement of Income, corresponds to the following categories: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Personnel compensation 16,863 17,493 18,605 Board members’ salaries and expenses 1,199 1,269 1,374 Bonuses or gratifications 16,057 14,404 12,861 Compensation in stock 1,923 331 66 Training expenses 68 161 122 Seniority compensation 3,842 2,619 4,154 Health funds 273 285 314 Other personnel expenses 773 916 1,396 Pension plans (*) 2,039 (150) 431 Total 43,037 37,328 39,323
Schedule of composition of key personnel	As of December 31, 2017, 2016 and 2015, the composition of the Bank’s key personnel is as follows: Position No. of executives As of December 31, 2017 2016 2015 Director 11 13 12 Division manager 13 17 16 Department manager 63 76 79 Manager 46 61 53 Total key personnel 133 167 160

PENSION PLANS (Tables)

PENSION PLANS (Tables)	12 Months Ended
PENSION PLANS (Tables)	Dec. 31, 2017
Pension Plans
Schedule of actuarial hypothesis assumptions	The most significant actuarial hypotheses considered in the calculations were: Plans post-employment Plans post- employment 2017 2016 Mortality chart RV-2014 RV-2014/CB-2014 Termination of contract rates 5.0% 5.0% Impairment chart PDT 1985 PDT 1985
Schedule of post-employment benefits	Activity for post-employment benefits is as follows: As of December 31, 2017 2016 MCh$ MCh$ Plan assets 7,919 6,612 Commitments for defined-benefit plans For active personnel (6,998) (4,975) Incurred by inactive personnel - - Minus: Unrealized actuarial (gain) losses - - Balances at year end 921 1,637
Schedule of cash flow for post-employment benefits	Year’s cash flow for post-employment benefits is as follows: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ a) Fair value of plan assets Opening balance 6,612 6,945 6,495 Expected yield of insurance contracts 307 335 432 Employer contributions 1,931 886 18 Actuarial (gain) losses - - - Premiums paid - - - Benefits paid (931) (1,554) - Fair value of plan assets at year end 7,919 6,612 6,945 b) Present value of obligations Present value of obligations opening balance (4,975) (5,070) (4,639) Net incorporation of Group companies - - - Service cost (2,039) 150 (431) Interest cost - - - Curtailment/settlement effect - - - Benefits paid - - - Past service cost - - - Actuarial (gain) losses - - - Other 16 (55) - Present value of obligations at year end (6,998) (4,975) (5,070) Net balance at year end 921 1,637 1,875
Schedule of plan expected profit	Plan expected profit: As of December 31, 2017 2016 2015 Type of expected yield from the plan’s assets UF + 2.50% annual UF + 2.50% annual UF + 2.50% annual Type of yield expected from the reimbursement rights UF + 2.50% annual UF + 2.50% annual UF + 2.50% annual
Schedule of plan associated expenses	Plan associated expenses: For the years ended December 31, 2017 2016 2015 MCh$ MCh$ MCh$ Current period service expenses 2,039 (150) 431 Interest cost - - - Expected yield from plan’s assets (307) (335) (432) Expected yield of insurance contracts linked to the Plan: Extraordinary allocations - - - Actuarial (gain)/ losses recorded in the period - - - Past service cost - - - Other - - - Total 1,732 (485) (1)

FAIR VALUE OF FINANCIAL ASSET83

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Tables)	12 Months Ended
FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Tables)	Dec. 31, 2017
Fair Value Of Financial Assets And Liabilities
Schedule of financial assets and liabilities	Below is a comparison between the value at which the Bank’s financial assets and liabilities are recorded and their fair value as of December 31, 2017 and 2016: As of December 31, 2017 2016 Book value Fair value Book value Fair value MCh$ MCh$ MCh$ MCh$ Assets Trading investments 485,736 485,736 396,987 396,987 Financial derivative contracts 2,238,647 2,238,647 2,500,782 2,500,782 Loans and accounts receivable from customers and interbank loans, net 26,934,757 28,518,929 26,415,826 29,976,931 Available for sale investments 2,574,546 2,574,546 3,388,906 3,388,906 Guarantee deposits (margin accounts) 323,767 323,767 396,289 396,289 Liabilities Deposits and interbank borrowings 21,380,468 20,887,959 22,607,392 22,833,009 Financial derivative contracts 2,139,488 2,139,488 2,292,161 2,292,161 Issued debt instruments and other financial liabilities 7,335,683 7,487,591 7,566,388 8,180,322 Guarantees received (margin accounts) 408,313 408,313 480,926 480,926
Schedule of assets and liabilities on recurrent basis	The following table presents the assets and liabilities that are measured at fair value on a recurrent basis, as of December 31, 2017 and 2016: Fair value measurement As of December 31, 2017 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Trading investments 485,736 481,642 4,094 - Available for sale investments 2,574,546 2,549,226 24,674 646 Derivatives 2,238,647 - 2,216,306 22,341 Guarantee deposits (margin accounts) 323,767 323,767 - - Total 5,622,696 3,354,635 2,245,074 22,987 Liabilities Derivatives 2,139,488 - 2,139,481 7 Guarantees received (margin accounts) 408,313 408,313 - - Total 2,547,801 408,313 2,139,481 7 Fair value measurement As of December 31, 2016 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Trading investments 396,987 396,011 976 - Available for sale investments 3,388,906 2,471,439 916,808 659 Derivatives 2,500,782 - 2,461,407 39,375 Guarantee deposits (margin accounts) 396,289 396,289 - - Total 6,682,964 3,263,739 3,379,191 40,034 Liabilities Derivatives 2,292,161 - 2,292,118 43 Guarantees received (margin accounts) 480,926 480,926 - - Total 2,773,087 480,926 2,292,118 43
Schedule of assets or liabilities which are not measured at fair value	The following table presents assets or liabilities which are not measured at fair value in the statement of financial position but for which the fair value is disclosed, as of December 31, 2017 and 2016: Fair value measurement As of December 31, 2017 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Loans and accounts receivable from customers and interbank loans, net 28,518,929 - - 28,518,929 Total 28,518,929 - - 28,518,929 Liabilities Deposits and interbank borrowings 20,887,959 - 20,887,959 - I ssued debt instruments and other financial liabilities 7,487,591 - 7,487,591 - Total 28,375,550 - 28,375,550 - Fair value measurement As of December 31, 2016 Level 1 Level 2 Level 3 MCh$ MCh$ MCh$ MCh$ Assets Loans and accounts receivable from customers and interbank loans, net 29,976,931 - - 29,976,931 Total 29,976,931 - - 29,976,931 Liabilities Deposits and interbank borrowings 22,833,009 - 22,833,009 - I ssued debt instruments and other financial liabilities 8,180,322 - 8,180,322 - Total 31,013,331 - 31,013,331 -
Schedule of financial instruments classified as Level 3	The table below shows the effect, at December 31, 2017 and 2016, on the fair value of the main financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation. This effect was determined by a sensitivity analysis under a 1bp scenario, detailed in the following table: As of December 31, 2017 Instrument Level 3 Valuation technique Main unobservable inputs Impacts (in MCh$) Sens. -1bp Unfavorable scenario Impacts (in MCh$) Sens. +1bp Favorable scenario Derivatives Present Value method Curves on TAB indices (1) (1.3) 1.3 Available for sale investments Internal rate of return method BR UF (2) - - As of December 31, 2016 Instrument Level 3 Valuation technique Main unobservable inputs Impacts (in MCh$) Sens. -1bp Unfavorable scenario Impacts (in MCh$) Sens. +1bp Favorable scenario Derivatives Present Value method Curves on TAB indices (1) (12.30) 12.30 Available for sale investments Internal rate of return method BR UF (2) - - (1) TAB: “Tasa Activa Bancaria” (Active Bank Rate). Average interest rates on 30, 90, 180 and 360 day deposits published by the Chilean Association of Banks and Financial Institutions (ABIF) in nominal currency (Chilean peso) and in real terms, adjusted for inflation (in Chilean unit of account (Unidad de Fomento - UF)). (2) BR: “Bonos de Reconocimiento” (Recognition Bonds). The Recognition Bond is an instrument of money provided by the State of Chile to workers who joined the new pension system, which began operating since 1981.
Schedule of assets and liabilities measured at fair value on a recurrent basis using unobserved significant entries (Level 3)	The following table presents the Bank’s activity for assets and liabilities measured at fair value on a recurrent basis using unobserved significant inputs (Level 3) as of December 31, 2017 and 2016: Assets Liabilities MCh$ MCh$ As of January 1, 2017 (79,181) 43 Total realized and unrealized profits (losses) Included in statement of income (17,035) (36) Included in other comprehensive income (12) - Purchases, issuances, and loans (net) - - As of December 31, 2017 62,134 7 Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016 (17,047) (36) Assets Liabilities MCh$ MCh$ As of January 1, 2016 39,913 - Total realized and unrealized profits (losses) Included in statement of income 39,376 43 Included in other comprehensive income (108) - Purchases, issuances, and loans (net) - - As of December 31, 2016 79,181 43 Total profits or losses included in comprehensive income for 2016 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2015 39,268 43
Schedule of financial instruments subject to compensation	The following tables show the financial instruments subject to compensation in accordance with IAS 32, for 2017 and 2016: As of December 2017 Linked financial instruments, compensated in balance Financial instruments Gross amounts Compensated in balance Net amount presented in balance Remains of unrelated and / or unencumbered financial instruments Amount in Statements of Financial Position Assets Ch$ Million Ch$ Million Ch$ Million Ch$ Million Financial derivative contracts 2,029,657 - 2,029,657 208,990 2,238,647 Investments under resale agreements - - - - - Loans and accounts receivable from customers, and Interbank loans, net - - - 26,934,757 26,934,757 Total 2,029,657 - 2,029,657 27,143,747 29,173,404 Liabilities Financial derivative contracts 1,927,654 - 1,927,654 211,834 2,139,488 Investments under resale agreements 268,061 - 268,061 - 268,061 Déposits and interbank borrowings - - - 21,380,467 21,380,467 Total 2,195,715 - 2,195,715 21,592,301 23,788,016 As of December 2016 Linked financial instruments, compensated in balance Financial instruments Gross amounts Compensated in balance Net amount presented in balance Remains of unrelated and / or unencumbered financial instruments Amount in Statements of Financial Position Assets Ch$ Million Ch$ Million Ch$ Million Ch$ Million Financial derivative contracts 2,237,731 - 2,237,731 263,051 2,500,782 Obligations under repurchase agreements 6,736 - 6,736 - 6,736 Loans and accounts receivable from customers, and Interbank loans, net - - - 26,415,826 26,415,826 Total 2,244,467 - 2,244,467 26,678,877 28,923,344 Liabilities Financial derivative contracts 2,100,955 - 2,100,955 191,206 2,292,161 Investments under resale agreements 212,437 - 212,437 - 212,437 Deposits and interbank borrowings - - - 22,607,392 22,607,392 Total 2,313,392 - 2,313,392 22,798,598 25,111,990
Schedule of credit exposure in its financial derivative operations	The Bank, in order to reduce its credit exposure in its financial derivative operations, has entered into collateral contracts with its counterparties, in which it establishes the terms and conditions under which they operate. In terms collateral (received/delivered) operates when the net of the fair value of the financial instruments held exceed the thresholds defined in the respective contracts. As of December 31, 2017 As of December 31, 2016 Financial derivative contracts Assets Liability Asset Liability MM$ MM$ MM$ MM$ Financial derivative contracts with collateral agreement threshold equal to zero 1,898,220 1,773,471 2,134,917 1,986,345 Financial derivative contracts with non-zero threshold collateral agreement 221,030 316,840 233,945 238,450 Financial derivative contracts without collateral agreement 119,397 49,177 131,920 67,366 Total 2,238,647 2,139,488 2,500,782 2,292,161

RISK MANAGEMENT (Tables)

RISK MANAGEMENT (Tables)	12 Months Ended
RISK MANAGEMENT (Tables)	Dec. 31, 2017
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of quality assets and its related provision	The following table shows quality assets and its related provision, based on our internal scoring policy as of December 31, 2017 and 2016: As of December 31, Category 2017 2016 Commercial Portfolio Individual Percentage Allowance Percentage Individual Percentage Allowance Percentage MCh$ % MCh$ % MCh$ % MCh$ % A1 1,051,072 3.79% 827 0.10% 1,599,311 5.88% 923 0.12% A2 5,957,305 21.49% 18,514 2.34% 6,437,930 23.67% 23,757 3.00% A3 2,176,779 7.85% 27,894 3.53% 2,030,867 7.46% 29,668 3.75% B 539,074 1.94% 32,089 4.06% 538,909 1.98% 40,545 5.13% C1 145,033 0.52% 2,604 0.33% 121,893 0.45% 2,176 0.28% C2 56,871 0.21% 5,104 0.65% 51,034 0.19% 4,555 0.58% C3 39,825 0.14% 8,935 1.13% 49,901 0.18% 11,136 1.41% C4 53,261 0.19% 19,120 2.42% 64,118 0.24% 22,894 2.90% D1 71,896 0.26% 41,941 5.30% 73,462 0.27% 42,625 5.39% D2 77,048 0.28% 62,234 7.87% 89,857 0.33% 72,192 9.13% Subtotal 10,168,164 36.67% 219,262 27.73% 11,057,282 40.65% 250,471 31.69% Group Percentage Allowance Percentage Group Percentage Allowance Percentage MCh$ % MCh$ % MCh$ % MCh$ % Commercial Normal portfolio 3,488,633 12.58% 58,728 7.42% 2,741,858 10.08% 58,453 7.39% Impaired portfolio 414,530 1.50% 160,345 20.27% 341,132 1.25% 124,653 15.76% Subtotal 3,903,163 14.08% 219,073 27.69% 3,082,990 11.33% 183,106 23.15% Mortgage Normal portfolio 8,634,351 31.14% 20,174 2.55% 8,221,666 30.22% 23,699 3.00% Impaired portfolio 462,544 1.67% 48,892 6.17% 397,688 1.46% 33,310 4.21% Subtotal 9,096,895 32.81% 69,066 8.72% 8,619,354 31.68% 57,009 7.21% Consumer Normal portfolio 4,230,567 15.26% 114,099 14.42% 4,158,221 15.28% 147,979 18.72% Impaired portfolio 327,125 1.18% 169,657 21.44% 288,584 1.06% 152,040 19.23% Subtotal 4,557,692 16.44% 283,756 35.86% 4,446,805 16.34% 300,019 37.95% Total 27,725,914 100.00% 791,157 100.00% 27,206,431 100.00% 790,605 100.00%
Schedule of financial assets and off-balance sheet commitments	For financial assets recognised in the Consolidated Statement of Financial Position, maximum credit risk exposure equals their carrying value. Below is the distribution by financial asset and off-balance sheet commitments of the Bank’s maximum exposure to credit risk as of December 31, 2017 and 2016, without deduction of collateral, security interests or credit improvements received: As of December 31, 2017 2016 Amount of exposure Amount of exposure Note MCh$ MCh$ Deposits in banks 4 839,561 1,709,071 Cash items in process of collection 4 668,145 495,283 Trading investments 5 485,736 396,987 Investments under resale agreements 6 - 6,736 Financial derivative contracts 7 2,238,647 2,500,782 Loans and accounts receivable from customers and interbank loans, net 8 and 9 26,934,757 26,415,826 Available for sale investments 10 2,574,546 3,388,906 Off-balance commitments: Letters of credit issued 201,699 158,800 Foreign letters of credit confirmed 75,499 57,686 Guarantees 1,823,793 1,752,610 Available credit lines 8,135,489 7,548,820 Personal guarantees 81,577 125,050 Other irrevocable credit commitments 260,691 260,266 Total 44,320,140 44,816,823
Schedule of fair value of derivative instruments	Below we detail as of December 31, 2017, considering fair value of derivative instruments. Country Classification Derivative Instruments (adjusted to market) USD MCh$ Deposits USD MCh$ Loans USD MCh$ Financial investments USD MCh$ Total Exposure USD MCh$ Bolivia 3 0.00 0.00 0.06 0.00 0.06 China 2 0.00 0.00 243.95 0.00 243.95 Italy 2 0.00 2.38 0.78 0.00 3.16 México 2 0.00 0.01 0.00 0.00 0.01 Panamá 2 0.63 0.00 0.00 0.00 0.63 Perú 2 3.38 0.00 0.00 0.00 3.38 Thailand 2 0.00 0.00 0.31 0.00 0.31 Turkey 3 0.00 0.00 9.49 0.00 9.49 Total 4.01 2.39 254.59 0.00 260.99 Our exposure to Spain within the group is as follows: Counterpart Country Classification Derivative instruments (market adjusted) MUSD Deposits MUSD Loans MUSD Financial Investments MUSD Exposure Exposure MUSD Banco Santander España (*) Spain 1 9.74 118.26 - - 128.00
Schedule of security interests, collateral, or credit improvements	Below is the detail of security interests, collateral, or credit improvements provided to the Bank as of December 31, 2017 and 2016. As of December 31, 2017 2016 MCh$ MCh$ Non-impaired financial assets: Properties/mortgages 19,508,151 17,560,550 Investments and others 2,108,962 2,326,396 Impaired financial assets: Properties/ mortgages 152,252 186,297 Investments and others 1,087 2,064 Total 21,770,452 20,075,307
Schedule of liquidity portfolio	The management of the Bank’s liquidity portfolio is performed by the Financial Management Division under rules determined by the ALCO. As of December 31, 2017 2016 MCh$ MCh$ Financial investments for trading 485,736 396,987 Available for sale investments 2,574,546 3,388,906 Encumbered assets (net) (1) (268,330) (205,703) Net cash (2) (37,628) 16,259 Net Interbank deposits (3) 768,595 1,335,017 Total liquidity portfolio 3,522,919 4,931,466 (1) Assets encumbered through repurchase agreements are deducted from the liquidity portfolio. (2) Cash minus reserve requirements. As is presented in Note 4 the reserve requirements are established by the monthly average reserves that the Bank must maintain in accordance with regulation governing minimum reserves. (3) Includes overnight deposits in Central Bank, domestic banks and foreign banks.
Schedule of exposure to liquidity risk	The following table displays the actual derived percentages as calculated per above: As of December 31, 2017 % 2016 % 30 days (48.00) (15.00) 30 days foreign currency (22.00) 21.00 90 days (51.00) (37.00)
Schedule of breakdown by maturity	Below, is the breakdown by maturity, of the liability balances of the Bank as of December 31, 2017 and 2016: Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal after 1 year Total As of December 31, 2017 MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ Obligations under repurchase agreements - 268,061 - - 268,061 - - - - 268,061 Checking accounts, time deposits and other time liabilities 8,376,371 5,120,171 4,201,271 2,299,018 19,996,831 106,833 2,811 62,362 172,006 20,168,837 Financial derivatives contracts - 144,410 196,444 356,288 697,142 378,582 358,358 705.406 1,442,346 2,139,488 Interbank borrowings 4,130 46,013 397,419 1,030,241 1,477,803 220,554 - - 220,554 1,698,357 Issue debt instruments - 21,043 55,119 274,239 350,401 1,727,571 2,104,771 2,910,910 6,743,252 7,093,653 Other financial liabilities 177,663 701 2,583 31,879 212,826 27,581 404 1,219 29,204 242,030 Subtotal 8,558,164 5,600,399 4,852,836 3,991,665 23,003,064 2,461,121 2,466,344 3,679,897 8,607,362 31,610,426 Contractual interest payments 4,403 45,465 117,779 462,579 630,226 808,502 776,796 1,147,553 2,732,851 3,363,077 Total 8,562,567 5,645,864 4,970,615 4,454,244 23,633,290 3,269,623 3,243,140 4,827,450 11,340,213 34,973,503 As of December 31, 2017, the scheduled maturities of other commercial commitments, including accrued interest, were as follows: Other Commercial Commitments Up to 1 month Between 1 and 3 months Between 3 and 12 months Between 1 and 5 years More than 5 years Total (in millions of Ch$) Guarantees 514,510 244,543 835,030 208,479 21,231 1,823,793 Confirmed foreign letters of credit 16,681 33,513 21,277 4,028 - 75,499 Letters of credit issued 12,367 115,720 43,029 30,554 29 201,699 Pledges and other commercial commitments 16,028 13,382 47,288 4,880 - 81,578 Total other commercial commitments 559,586 407,158 946,624 247,941 21,260 2,182,569 Demand Up to 1 month Between 1 and 3 months Between 3 and 12 months Subtotal up to 1 year Between 1 and 3 years Between 3 and 5 years More than 5 years Subtotal after 1 year Total As of December 31, 2016 MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ MM$ Obligations under repurchase agreements - 212,437 - - 212,437 - - - - 212,437 Checking accounts, time deposits and other time liabilities 7,949,315 6,105,767 4,193,906 2,537,299 20,786,287 118,101 13,913 61,196 193,210 20,979,497 Financial derivatives contracts - 92,335 122,565 263,893 478,793 494,539 346,948 971,881 1,813,368 2,292,161 Interbank borrowings 4,557 373,423 115,769 1,154,063 1,647,812 233,542 35,014 - 268,556 1,916,368 Issue debt instruments - 43,141 185,425 922,705 1,151,271 1,168,117 1,444,593 3,562,391 6,175,101 7,326,372 Other financial liabilities 153,049 1,461 1,161 2,817 158,488 58,641 7,766 15,121 81,528 240,016 Subtotal 8,106,921 6,828,564 4,618,826 4,880,777 24,435,088 2,072,940 1,848,234 4,610,589 8,531,763 32,966,851 Contractual interest payments 2,273 56,121 170,861 537,941 767,196 1,762,884 - 987,370 2,750,254 3,517,450 Total 8,109,194 6,884,685 4,789,687 5,418,718 25,202,284 3,835,824 1,848,234 5,597,959 11,282,017 36,484,301 As of December 31, 2016, the scheduled maturities of other commercial commitments, including accrued interest, were as follows: Other Commercial Commitments Up to 1 month Between 1 and 3 months Between 3 and 12 months Between 1 and 5 years More than 5 years Total (in millions of Ch$) Guarantees 79,457 175,437 739,170 592,017 151,435 1,737,516 Confirmed foreign letters of credit 12,247 8,125 8,505 28,809 - 57,686 Letters of credit issued 36,662 82,342 39,768 27 - 158,799 Pledges and other commercial commitments 9,916 11,591 39,811 63,731 - 125,049 Total other commercial commitments 138,282 277,495 827,254 684,584 151,435 2,079,050
Schedule of high, low and average levels	High, low and average levels for each component and year were as follows: VaR 2017 USDMM 2016 USDMM Consolidated: High 5.71 3.95 Low 1.56 1.08 Average 3.01 2.25 Fixed-income investments: High 5.51 2.71 Low 1.15 0.55 Average 2.36 1.33 Variable-income investments High 0.01 0.03 Low 0.00 0.00 Average 0.00 0.00 Foreign currency investments High 4.21 3.83 Low 0.53 0.61 Average 1.71 1.91
Schedule of market risk	Market risk – Financial management portfolio – December 31, 2017 and 2016 2017 2016 Effect on financial income Effect on capital Effect on financial income Effect on capital Financial management portfolio – local currency (MCh$) Loss limit 48,000 175,000 48,000 175,000 High (37,148) (141,287) 30,853 146,208 Low (22,958) (112,818) 21,978 108,249 Average (29,110) (128,506) 26,119 120,159 Financial management portfolio – foreign currency (Th$US) Loss limit 30 75 30 75 High 16 42 14 35 Low 4 15 6 13 Average 10 23 10 26 Financial management portfolio – consolidated (in MCh$) Loss limit 48,000 175,000 48,000 175,000 High (38,249) (142,442) 31,764 145,566 Low (23,571) (112,277) 23,088 107,959 Average (29,948) (128,360) 27,390 119,632
Schedule of levels of basic capital and effective net equity	The levels of basic capital and effective net equity at the close of each period are as follows: Ratio As of December 31, As of December 31, 2017 2016 2017 2016 MCh$ MCh$ % % Basic capital 3,066,180 2,868,706 7.92 7.22 Regulatory capital 3,881,252 3,657,707 13.91 13.43
Consumer Loans [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of provision matrix	Santander: Bank Loan type Allowance Level(1) (Loss rate) Performing New clients Existing clients Banefe (3) 0.53% -19.75% 0.05%-11.92% 0.13%-18.67% Renegotiated consumer loans which were less than 90 days past due at the time of renegotiation (2) 3.66%-30.40% 10.19%-43.71% Consumer Renegotiated consumer loans which were more than 90 days past due at the time of renegotiation (2) 41.50%-100% 51,11%-100% Days Past Due New Clients Existing Clients Previously Renegotiated Bank Previously Renegotiated Banefe (3) 90-120 31.78% 31.78% 41.50% 51.11% Non-performing 120-150 51.17% 51.17% 60.15% 66.65% 150-180 59.98% 59.98% 68.86% 78.50% >180 Charged-off __________________ 1. Percentage of loans outstanding 2. This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.
Commerical Loans [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of provision matrix	Loan type Allowance Level(1) (Loss rate) Commercial loans analyzed on a group basis Performing Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise 0.87% -15.70% 0.03%-3.98% 0.21%-14.39% 0.14%-7.31 Renegotiated commercial loans which were less than 90 days past due at the time of renegotiation (2) loan w/o mortgage collateral 2.93%-20.65% loan with mortgage collateral 1.17%-8.25% Renegotiated commercial loans which were more than 90 days past due at the time of renegotiation (2) Days Past Due when renegotiated Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise 90-179 41.69% 12.15% 30.95% 18.93% 180-359 67.31% 23.42% 64.47% 51.86% 360-719 75.69% 34.65% 70.15% 63.12% >720 83.82% 46.25% 74.53% 72.87% Non-performing consumer Days Past Due Commercial loan to individuals w/o mortgage collateral Commercial loan to individuals with mortgage collateral Small Enterprise Mid-sized Enterprise Previously renegotiated 90-179 41.69% 12.15% 30.95% 18.93% 18.93% 180-359 67.31% 23.42% 64.47% 51.86% 51.86% 360-719 75.69% 34.65% 70.15% 63.12% 63.12% >720 83.82% 46.25% 74.53% 72.87% 72.87% __________________ (1) Percentage of loans outstanding (2) This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.
Residential Mortgage Loans [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Schedule of provision matrix	Bank Loan type Allowance Level(1) (Loss rate) Residential mortgage Performing Bank (excl Select) Santander Select 0.00%-5.18% 0.00%-3.88% Renegotiated mortgage loans which were less than 90 days past due at the time of renegotiation (2) 0.16%-8.37% Renegotiated mortgage loans which were more than 90 days past due at the time of renegotiation (2) 5.58%-26.25% Non-performing mortgage Loan to Value 0-60 5.58% 60-80 8.48% 80-90 11.93% >90 16.25% __________________ 1. Percentage of loans outstanding 2. This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.

SUMMARY OF SIGNIFICANT ACCOUN85

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Santander Corredora de Seguros Limitada [Member]
Disclosure of subsidiaries [line items]
Name of the Subsidiary		Santander Corredora de Seguros Limitada
Main Activity		Insurance brokerage
Country		Santiago, Chile
Direct interest Owned		99.75%	99.75%	99.75%
indirect interest Owned		0.01%	0.01%	0.01%
Total interest Owned		99.76%	99.76%	99.76%
Santander Corredores de Bolsa Limitada [Member]
Disclosure of subsidiaries [line items]
Name of the Subsidiary	[1]	Santander Corredores de Bolsa Limitada
Main Activity	[1]	Financial instruments brokerage
Country	[1]	Santiago, Chile
Direct interest Owned	[1]	50.59%	50.59%	50.59%
indirect interest Owned	[1]	0.41%	0.41%	0.41%
Total interest Owned	[1]	51.00%	51.00%	51.00%
Santander Agente de Valores Limitada [Member]
Disclosure of subsidiaries [line items]
Name of the Subsidiary		Santander Agente de Valores Limitada
Main Activity		Securities brokerage
Country		Santiago, Chile
Direct interest Owned		99.03%	99.03%	99.03%
indirect interest Owned
Total interest Owned		99.03%	99.03%	99.03%
Santander S.A. Sociedad Securitizadora [Member]
Disclosure of subsidiaries [line items]
Name of the Subsidiary		Santander S.A. Sociedad Securitizadora
Main Activity		Purchase of credits and issuance of debt instruments
Country		Santiago, Chile
Direct interest Owned		99.64%	99.64%	99.64%
indirect interest Owned
Total interest Owned		99.64%	99.64%	99.64%

[1]	On June 19, 2015, Santander Corredores de Bolsa Limitada, our stock broker company has changed its corporate structure to limited liability company. This situation was informed to SVS through an "essential fact" in accordance with the Law 18.045 articles 9 and 10, and General Regulation (NCG) N 16 and N 30.

SUMMARY OF SIGNIFICANT ACCOUN86

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1)		12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1)		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Redbanc S.A. [Member]
Disclosure of associates [line items]
Associates		Redbanc S.A.
Main activity		ATM services
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		33.43%	33.43%	33.43%
Transbank S.A. [Member]
Disclosure of associates [line items]
Associates		Transbank S.A.
Main activity		Debit and credit card services
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		25.00%	25.00%	25.00%
Centro de Compensacion Automatizado [Member]
Disclosure of associates [line items]
Associates		Centro de Compensación Automatizado
Main activity		Electronic fund transfer and compensation services
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		33.33%	33.33%	33.33%
Sociedad interbancaria de Deposito de Valores S.A. [Member]
Disclosure of associates [line items]
Associates		Sociedad Interbancaria de Depósito de Valores S.A.
Main activity		Delivery of securities on public offer
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		29.29%	29.29%	29.29%
Camara Compensacion de Alto Valor S.A. [Member]
Disclosure of associates [line items]
Associates		Cámara Compensación de Alto Valor S.A
Main activity		Payments clearing
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share	[1],[2],[3],[4]	15.00%	14.93%	14.23%
Administrador Financiero del Transantiago S.A. [Member]
Disclosure of associates [line items]
Associates		Administrador Financiero del Transantiago S.A.
Main activity		Administration of boarding passes to public transportation
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		20.00%	20.00%	20.00%
Sociedad Nexus S.A. [Member]
Disclosure of associates [line items]
Associates		Sociedad Nexus S.A.
Main activity		Credit card processor
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share		12.90%	12.90%	12.90%
Servicios de infraestructura de Mercado OTC S.A. [Member]
Disclosure of associates [line items]
Associates		Servicios de Infraestructura de Mercado OTC S.A.
Main activity		Administration of the infrastructure for the financial market of derivative instruments
Place of incorporation and operation		Santiago, Chile
Percentage of ownership share	[1],[2]	12.07%	12.07%	11.11%

[1]	During the last quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.93% and 12.07% respectively.
[2]	During the third quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.84% and 11.93% respectively.
[3]	In February 2017, Banco Paris sold to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA", the Bank's share increased to 15.00%.
[4]	In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensacion de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing our participation to 14.23%.

SUMMARY OF SIGNIFICANT ACCOUN87

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)	Dec. 31, 2017
Land [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	-
Paintings and Works Of Art [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	-
Carpets and Curtains [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P36M
Computer equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P36M
Vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P36M
IT Systems and Software [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P36M
ATMs [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Fixtures and fittings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Telephone And Communication Systems [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Security Systems [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Rights Over Telephone Lines [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P60M
Air Conditioning Systems [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P84M
Other installations [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P120M
Buildings [member]
Disclosure of detailed information about property, plant and equipment [line items]
Useful life	P1200M

SUMMARY OF SIGNIFICANT ACCOUN88

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)	Dec. 31, 2017
Consumer Loans With Or Without Collateral [Member]
Disclosure of financial assets [line items]
Term	6 months
Other Transactions Without Collateral [Member]
Disclosure of financial assets [line items]
Term	24 months
Commercial Loans With Collateral [Member]
Disclosure of financial assets [line items]
Term	36 months
Mortgage loans [Member]
Disclosure of financial assets [line items]
Term	48 months
Consumer Leasing [Member]
Disclosure of financial assets [line items]
Term	6 months
Other Non-Mortgage Leasing Transactions [Member]
Disclosure of financial assets [line items]
Term	12 months
Mortgage Leasing (Household And Business) [Member]
Disclosure of financial assets [line items]
Term	36 months

SUMMARY OF SIGNIFICANT ACCOUN89

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) $ in Millions	Apr. 21, 2016CLP ($)	Oct. 31, 2015	Dec. 31, 2017CLP ($)Segment	Dec. 31, 2016Segment	Sep. 30, 2016
Disclosure of associates [line items]
Foreign exchange rate \| Segment			616.85	666
Foreign exchange inflation rate			2.30%	2.70%
Credit valuation adjustment			$ 8,142
Debit valuation adjustment			$ 15,406
Minimum mandatory dividends distributed			30.00%	30.00%
USD
Disclosure of associates [line items]
Foreign exchange rate \| Segment			1	1
Unidad de Fomento (funds code) [Member]
Disclosure of associates [line items]
Foreign exchange rate \| Segment			26,798	26,347.98
Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor S.A. [Member]
Disclosure of associates [line items]
Increase (decrease) in bank shares percenatge			15.00%	14.93%	14.84%
Servicios de infraestructura de Mercado OTC S.A. [Member]
Disclosure of associates [line items]
Increase (decrease) in bank shares percenatge				12.07%	11.93%
Transbank S.A. [Member]
Disclosure of associates [line items]
Proportion of ownership interest in subsidiary	25.00%
Payments of shares	$ 4,000
Subscribed and paid shares	$ 1,000
Camara Compensacion de Alto Valor S.A. [Member]
Disclosure of associates [line items]
Proportion of ownership interest in subsidiary		14.23%
Banco Santander Spain [Member] \| Banco Santander-Chile [Member]
Disclosure of associates [line items]
Proportion of ownership interest in subsidiary			99.50%
Banco Santander Spain [Member] \| Teatinos Siglo XXi inversiones Ltda [Member]
Disclosure of associates [line items]
Proportion of ownership interest in subsidiary			100.00%
Banco Santander Spain [Member] \| Santander-Chile Bank [Member]
Disclosure of associates [line items]
Proportion of ownership interest in subsidiary			67.18%

SIGNIFICANT EVENTS (Details)

SIGNIFICANT EVENTS (Details) $ in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017CLP ($)	Dec. 31, 2017USD ($)	Dec. 31, 2017AUD ($)	Dec. 31, 2016CLP ($)
Disclosure of financial liabilities [line items]
Notional amount	$ 177,224,139			$ 177,941,295
Bonds [Member] \| USD \| DN 1 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 100
Term (annual)	P3Y
Issuance rate (annual)	0.80%	0.80%	0.80%
Description of Issuance rate (annual)	Libor-USD 3M+0,80%
Issue date	Jul. 20, 2017
Maturity date	Jul. 27, 2020
Bonds [Member] \| USD \| DN 2 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 50
Term (annual)	P3Y
Issuance rate (annual)	0.80%	0.80%	0.80%
Description of Issuance rate (annual)	Libor-USD 3M+0,80%
Issue date	Jul. 21, 2017
Maturity date	Jul. 27, 2020
Bonds [Member] \| USD \| DN 3 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 50
Term (annual)	P3Y
Issuance rate (annual)	0.80%	0.80%	0.80%
Description of Issuance rate (annual)	Libor-USD 3M+0,80%
Issue date	Jul. 24, 2017
Maturity date	Jul. 27, 2020
Bonds [Member] \| USD \| DN 4 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 10
Term (annual)	P4Y
Issuance rate (annual)	0.83%	0.83%	0.83%
Description of Issuance rate (annual)	Libor-USD 3M+0,83%
Issue date	Aug. 23, 2017
Maturity date	Nov. 23, 2020
Bonds [Member] \| USD \| DN 5 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 10
Term (annual)	P4Y
Issuance rate (annual)	0.83%	0.83%	0.83%
Description of Issuance rate (annual)	Libor-USD 3M+0,83%
Issue date	Aug. 23, 2017
Maturity date	Nov. 23, 2020
Bonds [Member] \| USD \| DN 6 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 50
Term (annual)	P3Y
Issuance rate (annual)	0.75%	0.75%	0.75%
Description of Issuance rate (annual)	Libor-USD 3M+0,75%
Issue date	Sep. 14, 2017
Maturity date	Sep. 15, 2020
Bonds [Member] \| USD \| DN 7 [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 500
Term (annual)	P3Y
Issuance rate (annual)	2.50%	2.50%	2.50%
Description of Issuance rate (annual)	2,50%
Issue date	Dec. 12, 2017
Maturity date	Dec. 15, 2020
Bonds [Member] \| USD \| DN [Member]
Disclosure of financial liabilities [line items]
Currency	USD
Notional amount		$ 770
Bonds [Member] \| AUD \| AUD 1 [Member]
Disclosure of financial liabilities [line items]
Currency
Notional amount			$ 30
Term (annual)	P10Y
Issuance rate (annual)	3.96%	3.96%	3.96%
Description of Issuance rate (annual)	3,96%
Issue date	Dec. 5, 2017
Maturity date	Dec. 12, 2027
Bonds [Member] \| AUD \| AUD [Member]
Disclosure of financial liabilities [line items]
Currency
Notional amount			$ 30

SIGNIFICANT EVENTS (Details 1)

SIGNIFICANT EVENTS (Details 1) - 12 months ended Dec. 31, 2017 - Bonds [Member] $ in Millions, $ in Millions, in Millions	CLP ($)	USD ($)	CLF ( )
Senior Bond 1 [Member] \| USD
Disclosure of financial liabilities [line items]
Date	Mar. 6, 2017
Amount \| $		$ 6,900,000
Senior Bond 2 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	May 12, 2017
Amount			1,000,000
Senior Bond 3 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	May 16, 2017
Amount			690,000
Senior Bond 4 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	May 17, 2017
Amount			15,000
Senior Bond 5 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	May 26, 2017
Amount			340,000
Senior Bond 6 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jun. 1, 2017
Amount			590,000
Senior Bond 7 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jun. 2, 2017
Amount			300,000
Senior Bond 8 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jun. 5, 2017
Amount			130,000
Senior Bond 9 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jun. 19, 2017
Amount			265,000
Senior Bond 10 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jul. 10, 2017
Amount			770,000
Senior Bond 11 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Jul. 21, 2017
Amount			10,000
Senior Bond 12 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Aug. 28, 2017
Amount			400,000
Senior Bond 13 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Aug. 29, 2017
Amount			272,000
Senior Bond 14 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Nov. 3, 2017
Amount			14,000
Senior Bond 15 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Nov. 29, 2017
Amount			400,000
Senior Bond 16 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Dec. 6, 2017
Amount			20,000
Senior Bond 17 [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Date	Dec. 12, 2017
Amount \| $	$ 10,990,000,000

SIGNIFICANT EVENTS (Details Nar

SIGNIFICANT EVENTS (Details Narrative) - CLP ($) $ / shares in Units, $ in Millions	Apr. 21, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Significant Events Details Narrative
Net income attributable to equity holders of the Bank	$ 562,801	$ 562,801	$ 476,067	$ 448,466
Dividend per share (in dollars per share)			$ 1.755	$ 1.787

REPORTING SEGMENTS (Details)

REPORTING SEGMENTS (Details) - CLP ($) $ in Millions		12 Months Ended
REPORTING SEGMENTS (Details) - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of operating segments [line items]
Loans and accounts receivable from customers		$ 26,772,544	$ 26,147,154
Net interest income		1,326,691	1,281,366	$ 1,255,206
Net fee and commission income		455,558	431,184	402,900
Provision for loan losses		302,255	342,083	399,277
Other operating income		62,016	6,427	6,439
Income from investments in associates and other companies		3,963	3,012	2,588
Income tax expense		145,031	109,031	76,395
Net income for the year		575,249	478,432	451,729
Retail Banking [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	19,233,169	18,604,936	17,034,707
Net interest income		970,332	931,105	873,026
Net fee and commission income		206,449	196,845	190,380
Financial transactions, net	[2]	20,595	21,141	16,245
Provision for loan losses		(293,956)	(323,888)	(332,657)
Support expenses	[3]	(534,970)	(529,909)	(533,086)
Segment`s net contribution		368,450	295,294	213,908
Middle Market [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	6,775,734	6,396,376	6,006,282
Net interest income		264,663	244,960	229,812
Net fee and commission income		36,280	30,851	28,537
Financial transactions, net	[2]	13,751	19,577	17,897
Provision for loan losses		(19,235)	(26,748)	(26,147)
Support expenses	[3]	(91,882)	(83,412)	(77,261)
Segment`s net contribution		203,577	185,228	172,838
Commercial Banking [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	26,008,903	25,001,312	23,040,989
Net interest income		1,234,995	1,176,065	1,102,838
Net fee and commission income		242,729	227,696	218,917
Financial transactions, net	[2]	34,346	40,718	34,142
Provision for loan losses		(313,191)	(350,636)	(358,804)
Support expenses	[3]	(626,852)	(613,321)	(610,347)
Segment`s net contribution		572,027	480,522	386,746
Global Corporate Banking [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	1,633,796	2,121,513	2,178,643
Net interest income		100,808	95,105	85,553
Net fee and commission income		27,626	25,077	15,231
Financial transactions, net	[2]	50,714	55,927	50,327
Provision for loan losses		6,440	7,579	(28,426)
Support expenses	[3]	(62,685)	(53,935)	(49,533)
Segment`s net contribution		122,903	129,753	73,152
Other [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	83,215	83,606	81,125
Net interest income		(9,112)	10,196	66,815
Net fee and commission income		8,708	1,651	3,479
Financial transactions, net	[2]	44,692	43,713	61,030
Provision for loan losses		4,496	974	(12,047)
Support expenses	[3]	(15,356)	(19,649)	(1,328)
Segment`s net contribution		33,428	36,885	117,949
Total [Member]
Disclosure of operating segments [line items]
Loans and accounts receivable from customers	[1]	27,725,914	27,206,431	25,300,757
Net interest income		1,326,691	1,281,366	1,255,206
Net fee and commission income		279,063	254,424	237,627
Financial transactions, net	[2]	129,752	140,358	145,499
Provision for loan losses		(302,255)	(342,083)	(399,277)
Support expenses	[3]	(704,893)	(686,905)	(661,208)
Segment`s net contribution		728,358	647,160	577,847
Other operating income		62,016	6,427	6,439
Other operating expenses and impairment		(74,057)	(69,136)	(58,750)
Income from investments in associates and other companies		3,963	3,012	2,588
Income tax expense		(145,031)	(109,031)	(76,395)
Net income for the year		$ 575,249	$ 478,432	$ 451,729

[1]	Corresponds to loans and accounts receivable from customers, without deducting their allowances for loan losses.
[2]	Corresponds to the sum of the net income from financial operations and the foreign exchange profit or loss.
[3]	Corresponds to the sum of personnel salaries and expenses, administrative expenses, depreciation and amortization.

CASH AND CASH EQUIVALENTS (Deta

CASH AND CASH EQUIVALENTS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash and deposits in banks
Cash	$ 613,361	$ 570,317
Deposits at the Central Bank of Chile	441,683	507,275
Deposits in local banks	393	1,440
Deposits in banks abroad	397,485	1,200,357
Subtotals - Cash and deposits in banks	1,452,922	2,279,389
Net cash items in process of collection	181,419	206,810
Cash and cash equivalents	$ 1,634,341	$ 2,486,199	$ 2,327,170	$ 1,859,002

CASH AND CASH EQUIVALENTS (De95

CASH AND CASH EQUIVALENTS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Documents held by other banks (documents to be cleared)	$ 199,619	$ 200,109
Funds receivable	468,526	295,174
Subtotal	668,145	495,283
Liabilities
Funds payable	486,726	288,473
Subtotal	486,726	288,473
Cash in process of collection, net	$ 181,419	$ 206,810

TRADING INVESTMENTS (Details)

TRADING INVESTMENTS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
Total	$ 485,736	$ 396,987
Chilean Central Bank & Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	481,642	396,011
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total	272,272	158,686
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	209,370	237,325
Other Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total		976
Other Chilean securities [Member] \| Time deposits in Chilean financial institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Other Chilean securities [Member] \| Mortgage finance bonds of Chilean financial institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Other Chilean securities [Member] \| Chilean financial institution bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total
Other Chilean securities [Member] \| Chilean corporate bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total		976
Other Chilean securities [Member] \| Other Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Foreign financial securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Foreign financial securities [Member] \| Foreign Central Banks and Government securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Foreign financial securities [Member] \| Other foreign financial instruments [Member]
Disclosure of fair value measurement of assets [line items]
Total
Investments in mutual funds [Member]
Disclosure of fair value measurement of assets [line items]
Total	4,094
Investments in mutual funds [Member] \| Funds managed by related entities [Member]
Disclosure of fair value measurement of assets [line items]
Total	4,094
Investments in mutual funds [Member] \| Funds managed by others [Member]
Disclosure of fair value measurement of assets [line items]
Total

INVESTMENTS UNDER RESALE AGRE97

INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
Total		$ 6,736
From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total		6,736
More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total		6,736
Chilean Central Bank & Government Securities [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total		6,736
Chilean Central Bank & Government Securities [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total		3,260
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total		3,260
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of fair value measurement of assets [line items]
Total		3,476
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total		3,476
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total

INVESTMENTS UNDER RESALE AGRE98

INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
Total	$ 268,061	$ 212,437
Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total	268,023	211,942
From 1 Day and less than 3 Months [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,118	56,898
From 1 Day and less than 3 Months [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total	38	495
More than 3 months to 1 year [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	38	495
More than 3 months to 1 year [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
More than 1 Year [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
More than 1 Year [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Time deposits in Chilean Financial Institutions [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Time deposits in Chilean Financial Institutions [Member] \| From 1 Day and less than 3 Months [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,118	56,898
Time deposits in Chilean Financial Institutions [Member] \| More than 3 months to 1 year [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	38	495
Time deposits in Chilean Financial Institutions [Member] \| More than 1 Year [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Securities From Government Or Foreign Central Banks [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Securities From Government Or Foreign Central Banks [Member] \| From 1 Day and less than 3 Months [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Securities From Government Or Foreign Central Banks [Member] \| More than 3 months to 1 year [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Securities From Government Or Foreign Central Banks [Member] \| More than 1 Year [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995	155,044
Chilean Central Bank & Government Securities [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995	155,044
Chilean Central Bank & Government Securities [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of fair value measurement of assets [line items]
Total		155,044
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total		155,044
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| From 1 Day and less than 3 Months [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| More than 3 months to 1 year [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| More than 1 Year [Member]
Disclosure of fair value measurement of assets [line items]
Total

INVESTMENTS UNDER RESALE AGRE99

INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
Total	$ 268,061	$ 212,437
Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total	268,061	212,437
Available For Sale Portfolio [Member] \| Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Available For Sale Portfolio [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] \| Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Time deposits in Chilean Financial Institutions [Member] \| Other Domestic Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Time deposits in Chilean Financial Institutions [Member] \| Available For Sale Portfolio [Member] \| Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	1,156	57,393
Time deposits in Chilean Financial Institutions [Member] \| Trading Portfolio [Member] \| Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Securities From Government Or Foreign Central Banks [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Securities From Government Or Foreign Central Banks [Member] \| Available For Sale Portfolio [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	24,910
Securities From Government Or Foreign Central Banks [Member] \| Trading Portfolio [Member] \| Other Foreign Chilean securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995	155,044
Chilean Central Bank & Government Securities [Member] \| Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995	155,044
Chilean Central Bank & Government Securities [Member] \| Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of fair value measurement of assets [line items]
Total		155,044
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total		155,044
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total	241,995
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total

DERIVATIVE FINANCIAL INSTRUM100

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedges [line items]
Notional amount	$ 177,224,139	$ 177,941,295
Fair value Assets	2,238,647	2,500,782
Fair value Liabilities	2,139,488	2,292,161
Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	31,615,917	29,134,456
More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	35,372,847	35,644,624
More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	110,235,375	113,162,215
Fair value hedges [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	7,795,629	4,160,888
Fair value Assets	38,088	71,617
Fair value Liabilities	67,148	33,079
Fair value hedges [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		498,172
Fair value hedges [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	878,686	1,020,356
Fair value hedges [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,916,943	2,642,360
Fair value hedges [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,717,156	1,991,410
Fair value Assets	23,003	38,977
Fair value Liabilities	1,424	211
Fair value hedges [Member] \| Interest rate swap contract [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		74,086
Fair value hedges [Member] \| Interest rate swap contract [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	162,985	514,454
Fair value hedges [Member] \| Interest rate swap contract [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,554,171	1,402,870
Fair value hedges [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,078,473	2,169,478
Fair value Assets	15,085	32,640
Fair value Liabilities	65,724	32,868
Fair value hedges [Member] \| Cross currency swaps [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		424,086
Fair value hedges [Member] \| Cross currency swaps [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	715,701	505,902
Fair value hedges [Member] \| Cross currency swaps [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	5,362,772	1,239,490
Cash flow hedge derivatives [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	9,751,673	9,327,198
Fair value Assets	75,636	53,807
Fair value Liabilities	128,414	72,335
Cash flow hedge derivatives [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,222,521	1,813,359
Cash flow hedge derivatives [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,856,586	3,253,645
Cash flow hedge derivatives [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,672,566	4,260,194
Cash flow hedge derivatives [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	8,731,598	7,771,380
Fair value Assets	36,403	43,591
Fair value Liabilities	128,355	68,894
Cash flow hedge derivatives [Member] \| Cross currency swaps [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	421,428	897,480
Cash flow hedge derivatives [Member] \| Cross currency swaps [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,637,604	2,613,706
Cash flow hedge derivatives [Member] \| Cross currency swaps [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,672,566	4,260,194
Cash flow hedge derivatives [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,020,075	1,555,818
Fair value Assets	39,233	10,216
Fair value Liabilities	59	3,441
Cash flow hedge derivatives [Member] \| Currency forwards [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	801,093	915,879
Cash flow hedge derivatives [Member] \| Currency forwards [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	218,982	639,939
Cash flow hedge derivatives [Member] \| Currency forwards [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	159,676,837	164,453,209
Fair value Assets	2,124,923	2,375,358
Fair value Liabilities	1,943,926	2,186,747
Trading Derivatives [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	30,393,396	26,822,925
Trading Derivatives [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	32,637,575	31,370,623
Trading Derivatives [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	96,645,866	106,259,661
Trading Derivatives [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	69,802,132	69,149,409
Fair value Assets	467,188	627,047
Fair value Liabilities	392,366	526,695
Trading Derivatives [Member] \| Interest rate swap contract [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	9,069,964	6,889,665
Trading Derivatives [Member] \| Interest rate swap contract [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	14,389,389	12,512,285
Trading Derivatives [Member] \| Interest rate swap contract [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	46,342,779	49,747,459
Trading Derivatives [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	57,578,156	64,703,753
Fair value Assets	1,241,632	1,562,068
Fair value Liabilities	1,042,120	1,449,550
Trading Derivatives [Member] \| Cross currency swaps [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,963,641	3,966,443
Trading Derivatives [Member] \| Cross currency swaps [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	7,503,144	7,589,201
Trading Derivatives [Member] \| Cross currency swaps [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	47,111,371	53,148,109
Trading Derivatives [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	31,747,403	30,439,747
Fair value Assets	412,994	185,618
Fair value Liabilities	502,555	209,955
Trading Derivatives [Member] \| Currency forwards [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	17,976,683	15,840,731
Trading Derivatives [Member] \| Currency forwards [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	10,679,327	11,240,251
Trading Derivatives [Member] \| Currency forwards [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	3,091,393	3,358,765
Trading Derivatives [Member] \| Call currency options [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	277,338	97,601
Fair value Assets	1,322	521
Fair value Liabilities	1,950	5
Trading Derivatives [Member] \| Call currency options [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	190,386	73,943
Trading Derivatives [Member] \| Call currency options [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	37,099	20,994
Trading Derivatives [Member] \| Call currency options [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	49,853	2,664
Trading Derivatives [Member] \| Call interest rate options [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value Assets
Fair value Liabilities
Trading Derivatives [Member] \| Call interest rate options [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member] \| Call interest rate options [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member] \| Call interest rate options [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member] \| Put currency options [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	271,808	62,699
Fair value Assets	1,787	104
Fair value Liabilities	4,935	542
Trading Derivatives [Member] \| Put currency options [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	192,722	52,143
Trading Derivatives [Member] \| Put currency options [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	28,616	7,892
Trading Derivatives [Member] \| Put currency options [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	50,470	2,664
Trading Derivatives [Member] \| Other derivatives [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value Assets
Fair value Liabilities
Trading Derivatives [Member] \| Other derivatives [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member] \| Other derivatives [Member] \| More than 3 months to 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Trading Derivatives [Member] \| Other derivatives [Member] \| More than 1 Year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount

DERIVATIVE FINANCIAL INSTRUM101

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedges [line items]
Notional amount	$ 177,224,139	$ 177,941,295
Fair value hedges [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	7,795,629	4,160,888
Fair value hedges [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,078,473	2,169,478
Fair value hedges [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,717,156	1,991,410
Fair value hedges [Member] \| Available for sale investments [Member] \| Yankee bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	70,938	63,270
Fair value hedges [Member] \| Available for sale investments [Member] \| Mortgage financing bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	4,738	5,651
Fair value hedges [Member] \| Available for sale investments [Member] \| Treasury bonds (BTP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	129,539	399,600
Fair value hedges [Member] \| Available for sale investments [Member] \| Central bank bonds (BCP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	790,286
Fair value hedges [Member] \| Available for sale investments [Member] \| Chiliean Treasury Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	784,104
Fair value hedges [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	137,985	993,659
Fair value hedges [Member] \| Issued debt instruments [Member] \| Senior bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	4,382,487	2,698,708
Fair value hedges [Member] \| Loans and accounts receivables from customers [Member] \| Endorsable Mortgage Mutual Loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,495,552
Fair value hedges [Member] \| Due within 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	878,686	1,518,528
Fair value hedges [Member] \| Due within 1 year [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	715,701	929,988
Fair value hedges [Member] \| Due within 1 year [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	162,985	588,540
Fair value hedges [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Yankee bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Mortgage financing bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Treasury bonds (BTP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Central bank bonds (BCP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	128,289
Fair value hedges [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Chiliean Treasury Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Due within 1 year [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	137,985	993,659
Fair value hedges [Member] \| Due within 1 year [Member] \| Issued debt instruments [Member] \| Senior bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	25,000	524,869
Fair value hedges [Member] \| Due within 1 year [Member] \| Loans and accounts receivables from customers [Member] \| Endorsable Mortgage Mutual Loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	587,412
Fair value hedges [Member] \| Between 1 and 3 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,440,933	652,046
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,512,238	437,046
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	928,695	215,000
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Yankee bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Mortgage financing bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Treasury bonds (BTP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Central bank bonds (BCP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	218,640
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Chiliean Treasury Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	21,377
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Issued debt instruments [Member] \| Senior bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,399,686	652,046
Fair value hedges [Member] \| Between 1 and 3 years [Member] \| Loans and accounts receivables from customers [Member] \| Endorsable Mortgage Mutual Loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	801,230
Fair value hedges [Member] \| Between 3 and 6 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,994,389	1,046,516
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,813,221	531,556
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	181,168	514,960
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Yankee bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	6,169	6,660
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Mortgage financing bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	4,738	5,651
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Treasury bonds (BTP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		33,300
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Central bank bonds (BCP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	443,357
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Chiliean Treasury Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	762,727
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	670,488	1,000,905
Fair value hedges [Member] \| Between 3 and 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Endorsable Mortgage Mutual Loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	106,910
Fair value hedges [Member] \| Over 6 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,481,621	943,798
Fair value hedges [Member] \| Over 6 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,037,313	270,888
Fair value hedges [Member] \| Over 6 years [Member] \| Interest rate swap contract [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	444,308	672,910
Fair value hedges [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Yankee bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	64,769	56,610
Fair value hedges [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Mortgage financing bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Treasury bonds (BTP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	129,539	366,300
Fair value hedges [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Central bank bonds (BCP) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Chiliean Treasury Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Over 6 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Fair value hedges [Member] \| Over 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,287,313	520,888
Fair value hedges [Member] \| Over 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Endorsable Mortgage Mutual Loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount

DERIVATIVE FINANCIAL INSTRUM102

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedges [line items]
Notional amount	$ 177,224,139	$ 177,941,295
Cash flow hedge derivatives [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	9,751,673	9,327,198
Cash flow hedge derivatives [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,020,075	1,555,818
Cash flow hedge derivatives [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	8,731,598	7,771,380
Cash flow hedge derivatives [Member] \| Loans and accounts receivables from customers [Member] \| Mortgage loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	5,425,421	3,254,067
Cash flow hedge derivatives [Member] \| Loans and accounts receivables from customers [Member] \| Commercial loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	644,608	972,360
Cash flow hedge derivatives [Member] \| Available for sale investments [Member] \| Yankee bond [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	157,862	533,021
Cash flow hedge derivatives [Member] \| Available for sale investments [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	242,819	20,754
Cash flow hedge derivatives [Member] \| Available for sale investments [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		26,196
Cash flow hedge derivatives [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		285,090
Cash flow hedge derivatives [Member] \| Issued debt instruments [Member] \| Senior bonds (variable rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,070,524	1,539,220
Cash flow hedge derivatives [Member] \| Issued debt instruments [Member] \| Senior bonds (fixed rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	888,077	597,895
Cash flow hedge derivatives [Member] \| Interbank borrowings [Member] \| Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,322,362	2,098,595
Cash flow hedge derivatives [Member] \| Due within 1 year [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	3,079,107	5,067,004
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,020,075	1,555,818
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,059,032	3,511,186
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Loans and accounts receivables from customers [Member] \| Mortgage loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,153,348	1,083,972
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Loans and accounts receivables from customers [Member] \| Commercial loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	644,608	972,360
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Yankee bond [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		20,754
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Available for sale investments [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		26,196
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount		285,090
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Issued debt instruments [Member] \| Senior bonds (variable rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	120,520	854,414
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Issued debt instruments [Member] \| Senior bonds (fixed rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	241,183	140,765
Cash flow hedge derivatives [Member] \| Due within 1 year [Member] \| Interbank borrowings [Member] \| Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	919,448	1,683,453
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,755,144	1,235,548
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,755,144	235,548
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Loans and accounts receivables from customers [Member] \| Mortgage loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	583,061	312,546
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Loans and accounts receivables from customers [Member] \| Commercial loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Yankee bond [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Available for sale investments [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Issued debt instruments [Member] \| Senior bonds (variable rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	647,550	399,451
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Issued debt instruments [Member] \| Senior bonds (fixed rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	121,619	108,409
Cash flow hedge derivatives [Member] \| Between 1 and 3 years [Member] \| Interbank borrowings [Member] \| Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	402,914	415,142
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,130,105	1,555,362
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,130,105	1,555,362
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Mortgage loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	1,335,141	900,746
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Commercial loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Yankee bond [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	25,290	126,140
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	242,819
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Available for sale investments [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds (variable rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	302,454	285,355
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds (fixed rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	224,401	243,121
Cash flow hedge derivatives [Member] \| Between 3 and 6 years [Member] \| Interbank borrowings [Member] \| Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,787,317	1,469,284
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Currency forwards [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Cross currency swaps [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,787,317	1,469,284
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Mortgage loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	2,353,871	956,803
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Loans and accounts receivables from customers [Member] \| Commercial loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Yankee bond [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	132,572	406,881
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Available for sale investments [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Time deposits and other time liabilities [Member] \| Time deposits [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds (variable rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Issued debt instruments [Member] \| Senior bonds (fixed rate) [Member]
Disclosure of detailed information about hedges [line items]
Notional amount	300,874	105,600
Cash flow hedge derivatives [Member] \| Over 6 years [Member] \| Interbank borrowings [Member] \| Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Notional amount

DERIVATIVE FINANCIAL INSTRUM103

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 3) - Cash flow hedge derivatives [Member] - Interest rate risk [member] - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		$ 112,875	$ 136,528
Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	[1]	(385,626)	(279,027)
Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(272,751)	(142,499)
Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		385,626	279,027
Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(112,875)	(136,528)
Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		272,751	142,499
Due within 1 year [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		60,733	72,631
Due within 1 year [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	[1]	(308,737)	(159,439)
Due within 1 year [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(248,004)	(86,808)
Due within 1 year [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		308,737	159,439
Due within 1 year [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(60,733)	(72,631)
Due within 1 year [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		248,004	86,808
Between 1 and 3 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		43,507	45,857
Between 1 and 3 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	[1]	(60,515)	(83,193)
Between 1 and 3 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(17,008)	(37,336)
Between 1 and 3 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		60,515	83,193
Between 1 and 3 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(43,507)	(45,857)
Between 1 and 3 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		17,008	37,336
Between 3 and 6 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		7,757	18,040
Between 3 and 6 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	[1]	(13,780)	(32,647)
Between 3 and 6 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(6,023)	(14,607)
Between 3 and 6 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		13,780	32,647
Between 3 and 6 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(7,757)	(18,040)
Between 3 and 6 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		6,023	14,607
Over 6 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		878
Over 6 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	[1]	(2,594)	(3,748)
Over 6 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(1,716)	(3,748)
Over 6 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		2,594	3,748
Over 6 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		(878)
Over 6 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows		$ 1,716	$ 3,748

[1]	Only includes cash flow forecast portion of the hedge instruments used to cover interest rate risk.

DERIVATIVE FINANCIAL INSTRUM104

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 4) - Cash flow hedge derivatives [Member] - Inflation rate risk [member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	$ 1,645	$ 4,900
Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(439,323)	(206,342)
Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(437,678)	(201,442)
Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	439,323	206,342
Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(1,645)	(4,900)
Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	437,678	201,442
Due within 1 year [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	1,645	4,900
Due within 1 year [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(20,300)	(22,586)
Due within 1 year [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(18,655)	(17,686)
Due within 1 year [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	20,300	22,586
Due within 1 year [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(1,645)	(4,900)
Due within 1 year [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	18,655	17,686
Between 1 and 3 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Between 1 and 3 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(29,008)	(11,896)
Between 1 and 3 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(29,008)	(11,896)
Between 1 and 3 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	29,008	11,896
Between 1 and 3 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Between 1 and 3 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	29,008	11,896
Between 3 and 6 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Between 3 and 6 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(103,544)	(56,107)
Between 3 and 6 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(103,544)	(56,107)
Between 3 and 6 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	103,544	56,107
Between 3 and 6 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Between 3 and 6 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	103,544	56,107
Over 6 years [Member] \| Hedging Instruments Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Over 6 years [Member] \| Hedging Instruments Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(286,471)	(115,753)
Over 6 years [Member] \| Hedging Instruments Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	(286,471)	(115,753)
Over 6 years [Member] \| Hedged Items Inflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	286,471	115,753
Over 6 years [Member] \| Hedged Items Outflows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows
Over 6 years [Member] \| Hedged Items Net flows [Member]
Disclosure of detailed information about hedges [line items]
Forecasted cash flows	$ 286,471	$ 115,753

DERIVATIVE FINANCIAL INSTRUM105

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 5) - Cash flow hedge derivatives [Member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedges [line items]
Net flows	$ (3,562)	$ 2,288
Interbank borrowings [Member]
Disclosure of detailed information about hedges [line items]
Net flows	(4,779)	(6,019)
Time deposits and other time liabilities [Member]
Disclosure of detailed information about hedges [line items]
Net flows		(294)
Issued debt instruments [Member]
Disclosure of detailed information about hedges [line items]
Net flows	(8,683)	(8,169)
Available for sale investments [Member]
Disclosure of detailed information about hedges [line items]
Net flows	(364)	12,833
Loans and accounts receivables from customers [Member]
Disclosure of detailed information about hedges [line items]
Net flows	$ 10,264	$ 3,937

DERIVATIVE FINANCIAL INSTRUM106

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 6) - Cash flow hedge derivatives [Member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about hedges [line items]
Cash flow hedge net gains (losses)		$ (77)	$ 6
Interbank loans [Member]
Disclosure of detailed information about hedges [line items]
Cash flow hedge net gains (losses)
Bond Hedging derivatives [Member]
Disclosure of detailed information about hedges [line items]
Cash flow hedge net gains (losses)		$ (77)	$ 6

DERIVATIVE FINANCIAL INSTRUM107

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details Narrative) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Derivative Financial Instruments And Hedge Accounting
Bank recorded inefficiencies	$ 1,187	$ 355

INTERBANK LOANS (Details)

INTERBANK LOANS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Foreign Interbank Loans
Total	$ 162,213	$ 268,672
Loans and accounts receivables from customers [Member]
Foreign Interbank Loans
Total	162,213	268,672
Loans and accounts receivables from customers [Member] \| Domestic Banks [Member]
Domestic banks
Interbank loans		23
Other domestic bank loans		51
Loans and accounts receivables from customers [Member] \| Foreign Banks [Member]
Foreign Interbank Loans
Interbank loans - Foreign	162,685	272,733
Provisions and impairment for foreign bank loans	$ (472)	$ (4,135)

INTERBANK LOANS (Details 1)

INTERBANK LOANS (Details 1) - CLP ($) $ in Millions	12 Months Ended
INTERBANK LOANS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in provisions and impairment [Roll Forward]
Provisions released	$ 302,255	$ 342,083	$ 399,277
Loans and accounts receivables from customers [Member] \| Provisions and Impairment of Loans [Member]
Changes in provisions and impairment [Roll Forward]
Beginning balance	4,135	1,166
Provisions established	307	3,052
Provisions released	(3,970)	(83)
Ending balance	472	4,135	1,166
Loans and accounts receivables from customers [Member] \| Domestic Banks [Member] \| Provisions and Impairment of Loans [Member]
Changes in provisions and impairment [Roll Forward]
Beginning balance
Provisions established	251	1
Provisions released	(251)	(1)
Ending balance
Loans and accounts receivables from customers [Member] \| Foreign Banks [Member] \| Provisions and Impairment of Loans [Member]
Changes in provisions and impairment [Roll Forward]
Beginning balance	4,135	1,166
Provisions established	56	3,051
Provisions released	(3,719)	(82)
Ending balance	$ 472	$ 4,135	$ 1,166

LOANS AND ACCOUNTS RECEIVABL110

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Assets before Allowances	$ 27,725,914	$ 27,206,431
Allowances established	1,440	7,558
Net assets	26,772,544	26,147,154
Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	218,790	246,336
Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	571,895	540,134
Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	790,685	786,470
Allowances established	790,685	786,470	$ 761,135
Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	14,071,327	14,140,272
Net assets	13,470,779	13,438,023
Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	218,790	246,336
Allowances established	218,790	246,336	256,505
Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	219,073	183,106
Allowances established	219,073	183,106	174,696
Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	437,863	429,442
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,096,895	8,619,356
Allowances established	69,066	57,009	62,427
Net assets	9,027,829	8,562,347
Mortgage Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Mortgage Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	69,066	57,009
Mortgage Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	69,066	57,009
Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,557,692	4,446,803
Allowances established	283,756	300,019	$ 267,507
Net assets	4,273,936	4,146,784
Consumer Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Consumer Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	283,756	300,019
Consumer Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	283,756	300,019
Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	9,688,666	9,545,491
Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	133,254	159,463
Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	168,736	148,703
Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	301,990	308,166
Foreign Trade Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	1,524,043	1,772,084
Foreign Trade Loans [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	49,026	56,919
Foreign Trade Loans [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,444	901
Foreign Trade Loans [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	50,470	57,820
Current Account Debtors [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	181,230	169,820
Current Account Debtors [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	2,726	2,794
Current Account Debtors [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	11,740	6,854
Current Account Debtors [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	14,466	9,648
Factoring Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	443,895	291,344
Factoring Transactions [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,788	4,787
Factoring Transactions [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,207	620
Factoring Transactions [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	5,995	5,407
Student loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	82,368
Student loans [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Student loans [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	5,922
Student loans [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	5,922
Commercial Lease Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	1,426,682	1,461,984
Commercial Lease Transactions [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	14,529	17,529
Commercial Lease Transactions [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	12,793	5,546
Commercial Lease Transactions [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	30,322	23,139
Other Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net assets	123,895	197,300
Other Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	11,467	4,780
Other Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	17,231	20,482
Other Commercial Loans Portfolio [Member] \| Commercial loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	28,698	25,262
Transferable Mortgage Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Net assets	23,937	32,563
Transferable Mortgage Loans [Member] \| Mortgage Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Transferable Mortgage Loans [Member] \| Mortgage Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	123	16
Transferable Mortgage Loans [Member] \| Mortgage Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	123	16
Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Net assets	114,484	119,744
Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	594	190
Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	594	190
Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Net assets	8,889,408	8,410,040
Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	68,349	56,803
Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	68,349	56,803
Consumer Loans In Installments [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Net assets	2,669,780	2,472,820
Consumer Loans In Installments [Member] \| Consumer Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Consumer Loans In Installments [Member] \| Consumer Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	240,962	249,545
Consumer Loans In Installments [Member] \| Consumer Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	240,962	249,545
Credit Card Debtors [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Net assets	1,331,579	1,407,055
Credit Card Debtors [Member] \| Consumer Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Credit Card Debtors [Member] \| Consumer Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	33,401	41,063
Credit Card Debtors [Member] \| Consumer Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	33,401	41,063
Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Net assets	4,653	5,045
Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	62	72
Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	62	72
Other Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Net assets	267,924	261,864
Other Consumer Loans [Member] \| Consumer Loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances
Other Consumer Loans [Member] \| Consumer Loans [Member] \| Group Allowance [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,331	9,339
Other Consumer Loans [Member] \| Consumer Loans [Member] \| Total Provision [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,331	9,339
Normal Portfolio [Member]
Disclosure of financial assets [line items]
Assets before Allowances	25,760,056	25,318,811
Normal Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	12,895,139	12,938,924
Normal Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	8,634,351	8,221,668
Normal Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,230,566	4,158,219
Normal Portfolio [Member] \| Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,244,460
Normal Portfolio [Member] \| Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances		9,160,982
Normal Portfolio [Member] \| Foreign Trade Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,506,359	1,750,196
Normal Portfolio [Member] \| Current Account Debtors [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	179,982	166,073
Normal Portfolio [Member] \| Factoring Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	444,644	291,112
Normal Portfolio [Member] \| Student loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	77,226
Normal Portfolio [Member] \| Commercial Lease Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,335,653	1,376,972
Normal Portfolio [Member] \| Other Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	106,815	193,589
Normal Portfolio [Member] \| Transferable Mortgage Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	22,620	31,368
Normal Portfolio [Member] \| Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	110,659	115,400
Normal Portfolio [Member] \| Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	8,501,072	8,074,900
Normal Portfolio [Member] \| Consumer Loans In Installments [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	2,613,041	2,468,692
Normal Portfolio [Member] \| Credit Card Debtors [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,341,098	1,418,409
Normal Portfolio [Member] \| Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,638	5,062
Normal Portfolio [Member] \| Other Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	271,789	266,056
Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,803,173	1,614,813
Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,013,503	928,541
Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	462,544	397,688
Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	327,126	288,584
Impaired Portfolio [Member] \| Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	746,196	692,675
Impaired Portfolio [Member] \| Foreign Trade Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	68,154	79,708
Impaired Portfolio [Member] \| Current Account Debtors [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	15,714	13,395
Impaired Portfolio [Member] \| Factoring Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	5,246	5,639
Impaired Portfolio [Member] \| Student loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	11,064
Impaired Portfolio [Member] \| Commercial Lease Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	121,351	108,151
Impaired Portfolio [Member] \| Other Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	45,778	28,973
Impaired Portfolio [Member] \| Transferable Mortgage Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,440	1,211
Impaired Portfolio [Member] \| Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,419	4,534
Impaired Portfolio [Member] \| Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	456,685	391,943
Impaired Portfolio [Member] \| Consumer Loans In Installments [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	297,701	253,673
Impaired Portfolio [Member] \| Credit Card Debtors [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	23,882	29,709
Impaired Portfolio [Member] \| Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	77	55
Impaired Portfolio [Member] \| Other Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	5,466	5,147
Total Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Assets before Allowances	27,563,229	26,933,624
Total Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	13,908,642	13,867,465
Total Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,096,895	8,619,356
Total Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,557,692	4,446,803
Total Impaired Portfolio [Member] \| Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	9,990,656	9,853,657
Total Impaired Portfolio [Member] \| Foreign Trade Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,574,513	1,829,904
Total Impaired Portfolio [Member] \| Current Account Debtors [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	195,696	179,468
Total Impaired Portfolio [Member] \| Factoring Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	449,890	296,751
Total Impaired Portfolio [Member] \| Student loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	88,290
Total Impaired Portfolio [Member] \| Commercial Lease Transactions [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,457,004	1,485,123
Total Impaired Portfolio [Member] \| Other Commercial Loans Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	152,593	222,562
Total Impaired Portfolio [Member] \| Transferable Mortgage Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	24,060	32,579
Total Impaired Portfolio [Member] \| Endorsable Mortgage Mutual Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	115,078	119,934
Total Impaired Portfolio [Member] \| Other Mortgage Bonds Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	8,957,757	8,466,843
Total Impaired Portfolio [Member] \| Consumer Loans In Installments [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	2,910,742	2,722,365
Total Impaired Portfolio [Member] \| Credit Card Debtors [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	1,364,980	1,448,118
Total Impaired Portfolio [Member] \| Current Account Debtors Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	4,715	5,117
Total Impaired Portfolio [Member] \| Other Consumer Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before Allowances	$ 277,255	$ 271,203

LOANS AND ACCOUNTS RECEIVABL111

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 1) - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Assets before allowances		$ 27,725,914	$ 27,206,431
Distribution percentage		100.00%	1.00%
Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 14,071,327	$ 14,140,272
Distribution percentage		50.75%	51.98%
Commercial loans [Member] \| Manufacturing [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 1,218,232	$ 1,180,886
Distribution percentage		4.39%	4.34%
Commercial loans [Member] \| Mining [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 302,037	$ 340,554
Distribution percentage		1.09%	1.25%
Commercial loans [Member] \| Electricity, Gas and Water [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 336,048	$ 442,936
Distribution percentage		1.21%	1.63%
Commercial loans [Member] \| Agriculture and Livestock [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 1,114,597	$ 1,096,659
Distribution percentage		4.02%	4.03%
Commercial loans [Member] \| Forest [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 98,941	$ 96,806
Distribution percentage		0.36%	0.36%
Commercial loans [Member] \| Fishing [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 215,994	$ 296,592
Distribution percentage		0.78%	1.09%
Commercial loans [Member] \| Transportation and Telecom [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 697,948	$ 787,510
Distribution percentage		2.52%	2.89%
Commercial loans [Member] \| Communications [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 168,744	$ 196,934
Distribution percentage		0.61%	0.72%
Commercial loans [Member] \| Construction [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 1,977,417	$ 1,792,485
Distribution percentage		7.13%	6.59%
Commercial loans [Member] \| Commerce Industry [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 3,294,555	$ 3,393,133
Distribution percentage		11.88%	12.47%
Commercial loans [Member] \| Services [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 467,747	$ 482,900
Distribution percentage		1.69%	1.77%
Commercial loans [Member] \| Other [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 4,179,067	$ 4,032,877
Distribution percentage		15.07%	14.84%
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 9,096,895	$ 8,619,356
Distribution percentage		32.81%	31.68%
Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances		$ 4,557,692	$ 4,446,803
Distribution percentage		16.43%	16.34%
Domestic Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	$ 27,563,229	$ 26,933,698
Domestic Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	13,908,642	13,867,539
Domestic Loans [Member] \| Commercial loans [Member] \| Manufacturing [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	1,218,232	1,180,886
Domestic Loans [Member] \| Commercial loans [Member] \| Mining [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	302,037	340,554
Domestic Loans [Member] \| Commercial loans [Member] \| Electricity, Gas and Water [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	336,048	442,936
Domestic Loans [Member] \| Commercial loans [Member] \| Agriculture and Livestock [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	1,114,597	1,096,659
Domestic Loans [Member] \| Commercial loans [Member] \| Forest [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	98,941	96,806
Domestic Loans [Member] \| Commercial loans [Member] \| Fishing [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	215,994	296,592
Domestic Loans [Member] \| Commercial loans [Member] \| Transportation and Telecom [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	697,948	787,510
Domestic Loans [Member] \| Commercial loans [Member] \| Communications [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	168,744	196,934
Domestic Loans [Member] \| Commercial loans [Member] \| Construction [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	1,977,417	1,792,485
Domestic Loans [Member] \| Commercial loans [Member] \| Commerce Industry [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	3,131,870	3,120,400
Domestic Loans [Member] \| Commercial loans [Member] \| Services [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	467,747	482,900
Domestic Loans [Member] \| Commercial loans [Member] \| Other [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	4,179,067	4,032,877
Domestic Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	9,096,895	8,619,356
Domestic Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances	[1]	4,557,692	4,446,803
Foreign Interbank Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances		162,685	272,733
Foreign Interbank Loans [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Assets before allowances		162,685	272,733
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Manufacturing [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Mining [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Electricity, Gas and Water [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Agriculture and Livestock [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Forest [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Fishing [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Transportation and Telecom [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Communications [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Construction [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Commerce Industry [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Services [Member]
Disclosure of financial assets [line items]
Assets before allowances		162,685	272,733
Foreign Interbank Loans [Member] \| Commercial loans [Member] \| Other [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances
Foreign Interbank Loans [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Assets before allowances

[1]	Includes domestic interbank loans for Ch$ 0 million as of December 31, 2017 (Ch$74 million as of December 31, 2016), see Note 8.

LOANS AND ACCOUNTS RECEIVABL112

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total	$ 427,890	$ 439,707
Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total	427,890	439,707
Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total
Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total
Non-performing Loans (collectively evaluated) [Member]
Disclosure of financial assets [line items]
Total	633,461	564,131
Non-performing Loans (collectively evaluated) [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total	368,522	316,838
Non-performing Loans (collectively evaluated) [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	161,768	147,572
Non-performing Loans (collectively evaluated) [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	103,171	99,721
Other Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total	741,822	611,603
Other Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total	217,091	172,624
Other Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	300,776	250,116
Other Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	223,955	188,863
Total Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total	1,803,173	1,615,441
Total Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total	1,013,503	929,169
Total Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	462,544	397,688
Total Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	$ 327,126	$ 288,584

LOANS AND ACCOUNTS RECEIVABL113

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 3) - Total Impaired Portfolio [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total	$ 1,803,173	$ 1,615,441
SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	1,030,533	912,275
UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	772,640	703,166
Commercial loans [Member]
Disclosure of financial assets [line items]
Total	1,013,503	929,169
Commercial loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	582,557	519,821
Commercial loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	430,946	409,348
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	462,544	397,688
Mortgage Loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	413,716	357,320
Mortgage Loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	48,828	40,368
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	327,126	288,584
Consumer Loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	34,260	35,134
Consumer Loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	$ 292,866	$ 253,450

LOANS AND ACCOUNTS RECEIVABL114

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 4) - Non-performing Loans (collectively evaluated) [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total	$ 633,461	$ 564,131
SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	318,218	298,537
UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	315,243	265,594
Commercial loans [Member]
Disclosure of financial assets [line items]
Total	368,522	316,838
Commercial loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	167,909	159,965
Commercial loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	200,613	156,873
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	161,768	147,572
Mortgage Loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	141,413	129,632
Mortgage Loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	20,355	17,940
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	103,171	99,721
Consumer Loans [Member] \| SecuredDebt [Member]
Disclosure of financial assets [line items]
Total	8,896	8,940
Consumer Loans [Member] \| UnsecuredDebt [Member]
Disclosure of financial assets [line items]
Total	$ 94,275	$ 90,781

LOANS AND ACCOUNTS RECEIVABL115

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 5) - Non-performing Loans (collectively evaluated) [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total	$ 633,461	$ 564,131
Up to 3 Months [Member]
Disclosure of financial assets [line items]
Total	614,774	541,297
Less Than 90 Days [Member]
Disclosure of financial assets [line items]
Total	18,687	22,834
Commercial loans [Member]
Disclosure of financial assets [line items]
Total	368,522	316,838
Commercial loans [Member] \| Up to 3 Months [Member]
Disclosure of financial assets [line items]
Total	362,968	311,755
Commercial loans [Member] \| Less Than 90 Days [Member]
Disclosure of financial assets [line items]
Total	5,554	5,083
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	103,171	99,721
Consumer Loans [Member] \| Up to 3 Months [Member]
Disclosure of financial assets [line items]
Total	92,541	84,458
Consumer Loans [Member] \| Less Than 90 Days [Member]
Disclosure of financial assets [line items]
Total	10,630	15,263
Mortgage loans [Member]
Disclosure of financial assets [line items]
Total	161,768	147,572
Mortgage loans [Member] \| Up to 3 Months [Member]
Disclosure of financial assets [line items]
Total	159,265	145,084
Mortgage loans [Member] \| Less Than 90 Days [Member]
Disclosure of financial assets [line items]
Total	$ 2,503	$ 2,488

LOANS AND ACCOUNTS RECEIVABL116

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 6) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		$ 7,558
Balance End		1,440	$ 7,558
Total Provision [Member]
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		786,470	761,135
Allowances established	[1]	508,998	526,293
Allowances released	[2]	(133,932)	(122,651)
Charge-offs	[3]	(370,851)	(378,307)
Balance End		790,685	786,470
Commercial loans [Member] \| Individual Allowance [Member]
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		246,336	256,505
Allowances established	[1]	64,658	61,002
Allowances released	[2]	(55,925)	(43,183)
Charge-offs	[3]	(36,279)	(27,988)
Balance End		218,790	246,336
Commercial loans [Member] \| Group Allowance [Member]
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		183,106	174,696
Allowances established	[1]	148,681	133,855
Allowances released	[2]	(20,491)	(14,432)
Charge-offs	[3]	(92,223)	(111,013)
Balance End		219,073	183,106
Mortgage Loans [Member]
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		57,009	62,427
Allowances established	[1]	43,621	50,892
Allowances released	[2]	(11,427)	(34,246)
Charge-offs	[3]	(20,137)	(22,064)
Balance End		69,066	57,009
Consumer Loans [Member]
Changes in allowance account for credit losses of financial assets [Roll Forward]
Balance Beginning		300,019	267,507
Allowances established	[1]	252,038	280,544
Allowances released	[2]	(46,089)	(30,790)
Charge-offs	[3]	(222,212)	(217,242)
Balance End		$ 283,756	$ 300,019

[1]	Represents gross allowances made in respect of increased risk of loss during the period and loan growth.
[2]	Represents the gross amount of loan loss allowances released during the year as a consequence of reduction in the level of risk existing in the loan portfolio, including as a result of improvement in the credit risk classification of borrowers and loans paid.
[3]	Represents the gross amount of loan loss allowances removed due to charge-off.

LOANS AND ACCOUNTS RECEIVABL117

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 7) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Total	$ 83,315	$ 78,298	$ 68,140
Commercial loans [Member]
Disclosure of financial assets [line items]
Total	32,401	27,185	26,032
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	39,972	41,072	35,565
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total	$ 10,942	$ 10,041	$ 6,543

LOANS AND ACCOUNTS RECEIVABL118

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 8) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Total	$ 509,305	$ 529,345	$ 546,413
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total	508,998	526,293	545,056
Interbank loans [Member]
Disclosure of financial assets [line items]
Total	$ 307	$ 3,052	$ 1,357

LOANS AND ACCOUNTS RECEIVABL119

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 9) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 27,725,914	$ 27,206,431
Commercial loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	14,071,327	14,140,272
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	9,096,895	8,619,356
Consumer Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	4,557,692	4,446,803
Non-Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 25,760,056	$ 25,318,183
Overdue loans (less than 90 days) presented as portfolio percentage	2.53%	2.57%
Overdue loans (90 days or more) presented as portfolio percentage
Non-Impaired Portfolio [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 25,107,730	$ 24,667,787
Non-Impaired Portfolio [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	416,338	279,560
Non-Impaired Portfolio [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	235,988	370,836
Non-Impaired Portfolio [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances
Non-Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 12,895,139	$ 12,938,296
Overdue loans (less than 90 days) presented as portfolio percentage	122.00%	1.33%
Overdue loans (90 days or more) presented as portfolio percentage
Non-Impaired Portfolio [Member] \| Commercial loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 12,737,508	$ 12,765,961
Non-Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	103,908	97,302
Non-Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	53,723	75,033
Non-Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances
Non-Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 8,634,351	$ 8,221,668
Overdue loans (less than 90 days) presented as portfolio percentage	3.20%	3.37%
Overdue loans (90 days or more) presented as portfolio percentage
Non-Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 8,357,733	$ 7,944,260
Non-Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	180,294	69,227
Non-Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	96,324	208,181
Non-Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances
Non-Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 4,230,566	$ 4,158,219
Overdue loans (less than 90 days) presented as portfolio percentage	5.15%	4.83%
Overdue loans (90 days or more) presented as portfolio percentage
Non-Impaired Portfolio [Member] \| Consumer Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 4,012,489	$ 3,957,566
Non-Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	132,136	113,031
Non-Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	85,941	87,622
Non-Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances
Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 1,803,173	$ 1,614,813
Overdue loans (less than 90 days) presented as portfolio percentage	26.04%	23.31%
Overdue loans (90 days or more) presented as portfolio percentage	34.09%	33.51%
Impaired Portfolio [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 718,849	$ 697,662
Impaired Portfolio [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	231,189	81,297
Impaired Portfolio [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	238,361	295,185
Impaired Portfolio [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	614,774	541,297
Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 1,013,503	$ 928,541
Overdue loans (less than 90 days) presented as portfolio percentage	19.80%	16.60%
Overdue loans (90 days or more) presented as portfolio percentage	35.81%	33.55%
Impaired Portfolio [Member] \| Commercial loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 449,895	$ 463,176
Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	110,834	35,777
Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	89,806	118,461
Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	362,968	311,755
Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 462,544	$ 397,688
Overdue loans (less than 90 days) presented as portfolio percentage	31.24%	29.87%
Overdue loans (90 days or more) presented as portfolio percentage	34.43%	36.48%
Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 158,770	$ 133,816
Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	74,072	12,984
Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	70,437	105,804
Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	159,265	145,084
Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 327,126	$ 288,584
Overdue loans (less than 90 days) presented as portfolio percentage	38.03%	35.85%
Overdue loans (90 days or more) presented as portfolio percentage	28.29%	29.27%
Impaired Portfolio [Member] \| Consumer Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 110,184	$ 100,670
Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	46,283	32,536
Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	78,118	70,920
Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	92,541	84,458
Total Impaired Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 27,563,229	$ 26,933,624
Overdue loans (less than 90 days) presented as portfolio percentage	4.07%	3.81%
Overdue loans (90 days or more) presented as portfolio percentage	2.23%	2.01%
Total Impaired Portfolio [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 25,826,579	$ 25,365,449
Total Impaired Portfolio [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	647,527	360,857
Total Impaired Portfolio [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	474,349	666,021
Total Impaired Portfolio [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	614,774	541,297
Total Impaired Portfolio [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 13,908,642	$ 13,867,465
Overdue loans (less than 90 days) presented as portfolio percentage	2.58%	2.35%
Overdue loans (90 days or more) presented as portfolio percentage	2.61%	2.25%
Total Impaired Portfolio [Member] \| Commercial loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 13,187,403	$ 13,229,137
Total Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	214,742	133,079
Total Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	143,529	193,494
Total Impaired Portfolio [Member] \| Commercial loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	362,968	311,755
Total Impaired Portfolio [Member] \| Mortgage Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 9,096,895	$ 8,619,356
Overdue loans (less than 90 days) presented as portfolio percentage	4.63%	4.60%
Overdue loans (90 days or more) presented as portfolio percentage	1.75%	1.68%
Total Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 8,516,503	$ 8,078,076
Total Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	254,366	82,211
Total Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	166,761	313,985
Total Impaired Portfolio [Member] \| Mortgage Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	159,265	145,084
Total Impaired Portfolio [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 4,557,692	$ 4,446,803
Overdue loans (less than 90 days) presented as portfolio percentage	7.51%	6.84%
Overdue loans (90 days or more) presented as portfolio percentage	2.03%	1.90%
Total Impaired Portfolio [Member] \| Consumer Loans [Member] \| Current Portfolio [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 4,122,673	$ 4,058,236
Total Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 1-29 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	178,419	145,567
Total Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 30-89 Days [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	164,059	158,542
Total Impaired Portfolio [Member] \| Consumer Loans [Member] \| Overdue for 90 Days or more [Member]
Disclosure of financial assets [line items]
Total portfolio before allowances	$ 92,541	$ 84,458

LOANS AND ACCOUNTS RECEIVABL120

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS (Details 10) - Non-performing Loans (collectively evaluated) [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Overdue loans	$ 614,774	$ 541,297
Loans with not overdue but classified as non-performing loans	18,687	22,834
Total	633,461	564,131
Commercial loans [Member]
Disclosure of financial assets [line items]
Overdue loans	362,968	311,755
Loans with not overdue but classified as non-performing loans	5,554	5,083
Total	368,522	316,838
Mortgage Loans [Member]
Disclosure of financial assets [line items]
Overdue loans	159,265	145,084
Loans with not overdue but classified as non-performing loans	2,503	2,488
Total	161,768	147,572
Consumer Loans [Member]
Disclosure of financial assets [line items]
Overdue loans	92,541	84,458
Loans with not overdue but classified as non-performing loans	10,630	15,263
Total	$ 103,171	$ 99,721

AVAILABLE FOR SALE INVESTMEN121

AVAILABLE FOR SALE INVESTMENTS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total	$ 2,574,546	$ 3,388,906
Other Chilean securities [Member]
Disclosure of financial assets [line items]
Total	27,673	918,488
Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Total	284,072	726,944
Time deposits in Chilean financial institutions [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Total	2,361	891,320
Mortgage finance bonds of Chilean financial institutions [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Total	22,312	25,488
Foreign Central Banks and Government securities [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Total	132,822	387,146
Other foreign financial instruments [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Total	151,250	339,798
Other Instruments Issued in The Country [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Total	3,000	1,680
Chilean Central Bank & Government Securities [Member]
Disclosure of financial assets [line items]
Total	2,262,801	1,743,474
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of financial assets [line items]
Total	816,331	468,386
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of financial assets [line items]
Total	330,952	1,222,283
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of financial assets [line items]
Total	$ 1,115,518	$ 52,805

AVAILABLE FOR SALE INVESTMEN122

AVAILABLE FOR SALE INVESTMENTS (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Available For Sale Investments
Sale of available for sale investments generating realized profits	$ 6,469,344	$ 6,522,549	$ 2,627,490
Realized profits	4,867	12,333	22,473
Sale of available for sale investments generating realized losses	466,732	346,906	346,450
Realized losses	$ 3	$ 132	$ 72

AVAILABLE FOR SALE INVESTMEN123

AVAILABLE FOR SALE INVESTMENTS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	$ 2,572,691	$ 3,381,531
Available for sale investments fair value	2,574,546	3,388,906
Available for sale investments unrealized profit	13,672	9,790
Available for sale investments unrealized loss	(11,817)	(2,415)
Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	24,448	916,517
Available for sale investments fair value	27,673	918,488
Available for sale investments unrealized profit	3,225	2,037
Available for sale investments unrealized loss		(66)
Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	283,709	728,547
Available for sale investments fair value	284,072	726,944
Available for sale investments unrealized profit	1,944	724
Available for sale investments unrealized loss	(1,582)	(2,327)
Due within 1 year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	2,572,691	3,381,531
Available for sale investments fair value	2,574,546	3,388,906
Available for sale investments unrealized profit	13,672	9,790
Available for sale investments unrealized loss	(11,817)	(2,415)
Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	24,448	916,517
Available for sale investments fair value	27,673	918,488
Available for sale investments unrealized profit	3,225	2,037
Available for sale investments unrealized loss		(66)
Due within 1 year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	283,709	728,547
Available for sale investments fair value	284,072	726,944
Available for sale investments unrealized profit	1,944	724
Available for sale investments unrealized loss	(1,582)	(2,327)
More than 1 Year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
More than 1 Year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Time deposits in Chilean financial institutions [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	2,361	891,276
Available for sale investments fair value	2,361	891,320
Available for sale investments unrealized profit		108
Available for sale investments unrealized loss		(64)
Time deposits in Chilean financial institutions [Member] \| Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	2,361	891,276
Available for sale investments fair value	2,361	891,320
Available for sale investments unrealized profit		108
Available for sale investments unrealized loss		(64)
Time deposits in Chilean financial institutions [Member] \| More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Mortgage finance bonds of Chilean financial institutions [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	21,867	25,021
Available for sale investments fair value	22,312	25,488
Available for sale investments unrealized profit	445	469
Available for sale investments unrealized loss		(2)
Mortgage finance bonds of Chilean financial institutions [Member] \| Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	21,867	25,021
Available for sale investments fair value	22,312	25,488
Available for sale investments unrealized profit	445	469
Available for sale investments unrealized loss		(2)
Mortgage finance bonds of Chilean financial institutions [Member] \| More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean financial institution bonds [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean financial institution bonds [Member] \| Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean financial institution bonds [Member] \| More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean corporate bonds [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean corporate bonds [Member] \| Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean corporate bonds [Member] \| More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Other Chilean securities [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	220	220
Available for sale investments fair value	3,000	1,680
Available for sale investments unrealized profit	2,780	1,460
Available for sale investments unrealized loss
Other Chilean securities [Member] \| Due within 1 year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	220	220
Available for sale investments fair value	3,000	1,680
Available for sale investments unrealized profit	2,780	1,460
Available for sale investments unrealized loss
Other Chilean securities [Member] \| More than 1 Year [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Foreign Central Banks and Government securities [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	133,301	387,077
Available for sale investments fair value	132,822	387,146
Available for sale investments unrealized profit	847	69
Available for sale investments unrealized loss	(1,326)
Foreign Central Banks and Government securities [Member] \| Due within 1 year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	133,301	387,077
Available for sale investments fair value	132,822	387,146
Available for sale investments unrealized profit	847	69
Available for sale investments unrealized loss	(1,326)
Foreign Central Banks and Government securities [Member] \| More than 1 Year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Other foreign financial instruments [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	150,408	341,470
Available for sale investments fair value	151,250	339,798
Available for sale investments unrealized profit	1,097	655
Available for sale investments unrealized loss	(256)	(2,327)
Other foreign financial instruments [Member] \| Due within 1 year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	150,408	341,470
Available for sale investments fair value	151,250	339,798
Available for sale investments unrealized profit	1,097	655
Available for sale investments unrealized loss	(256)	(2,327)
Other foreign financial instruments [Member] \| More than 1 Year [Member] \| Foreign Financial Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean Central Bank & Government Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	2,264,534	1,736,467
Available for sale investments fair value	2,262,801	1,743,474
Available for sale investments unrealized profit	8,503	7,029
Available for sale investments unrealized loss	(10,235)	(22)
Chilean Central Bank & Government Securities [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	2,264,534	1,736,467
Available for sale investments fair value	2,262,801	1,743,474
Available for sale investments unrealized profit	8,503	7,029
Available for sale investments unrealized loss	(10,235)	(22)
Chilean Central Bank & Government Securities [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	816,164	461,793
Available for sale investments fair value	816,331	468,386
Available for sale investments unrealized profit	5,513	6,612
Available for sale investments unrealized loss	(5,346)	(19)
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	816,164	461,793
Available for sale investments fair value	816,331	468,386
Available for sale investments unrealized profit	5,513	6,612
Available for sale investments unrealized loss	(5,346)	(19)
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Bonds [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	330,923	1,222,263
Available for sale investments fair value	330,952	1,222,283
Available for sale investments unrealized profit	30	23
Available for sale investments unrealized loss	(1)
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	330,923	1,222,263
Available for sale investments fair value	330,952	1,222,283
Available for sale investments unrealized profit	30	23
Available for sale investments unrealized loss	(1)	(3)
Chilean Central Bank & Government Securities [Member] \| Chilean Central Bank Notes [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	1,117,447	52,411
Available for sale investments fair value	1,115,518	52,805
Available for sale investments unrealized profit	2,960	394
Available for sale investments unrealized loss	(4,888)
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost	1,117,447	52,411
Available for sale investments fair value	1,115,518	52,805
Available for sale investments unrealized profit	2,960	394
Available for sale investments unrealized loss	(4,888)
Chilean Central Bank & Government Securities [Member] \| Other Chilean Central Bank and Government securities [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Available for sale investments acquisition cost
Available for sale investments fair value
Available for sale investments unrealized profit
Available for sale investments unrealized loss

AVAILABLE FOR SALE INVESTMEN124

AVAILABLE FOR SALE INVESTMENTS (Details Narrative) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Available for sale investments	$ 2,574,546	$ 3,388,906
Other comprehensive income, net of tax, available-for-sale financial assets	1,855	7,375
Total Attributable To Equity Holders Of The Bank [Member]
Disclosure of financial assets [line items]
Other comprehensive income, net of tax, available-for-sale financial assets	459	6,449
Non-controlling Interest [Member]
Disclosure of financial assets [line items]
Other comprehensive income, net of tax, available-for-sale financial assets	1,396	926
Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments	27,673	918,488
Securities Sold Under Repurchase Agreements [Member] \| Other Chilean securities [Member]
Disclosure of financial assets [line items]
Available for sale investments	1,156	57,393
Chilean Central Bank & Government Securities [Member]
Disclosure of financial assets [line items]
Available for sale investments	2,262,801	1,743,474
Chilean Central Bank & Government Securities [Member] \| Securities Sold Under Repurchase Agreements [Member]
Disclosure of financial assets [line items]
Available for sale investments	$ 241,995	$ 155,044

INVESTMENTS IN ASSOCIATES AN125

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014
Disclosure of associates [line items]
Investment value		$ 27,585	[1]	$ 23,780	[1]	$ 20,309	$ 17,914
Profit and loss		$ 3,963		$ 3,012		$ 2,588
Redbanc S.A. [Member]
Disclosure of associates [line items]
Ownership interest		33.43%		33.43%		33.43%
Investment value		$ 2,537		$ 2,184
Profit and loss		$ 353		$ 373		$ 215
Transbank S.A. [Member]
Disclosure of associates [line items]
Ownership interest		25.00%		25.00%		25.00%
Investment value		$ 14,534		$ 12,510
Profit and loss		$ 2,024		$ 1,302		$ 1,256
Centro de Compensacion Automatizado [Member]
Disclosure of associates [line items]
Ownership interest		33.33%		33.33%		33.33%
Investment value		$ 1,589		$ 1,353
Profit and loss		$ 236		$ 248		$ 212
Sociedad interbancaria de Deposito de Valores S.A. [Member]
Disclosure of associates [line items]
Ownership interest		29.29%		29.29%		29.29%
Investment value		$ 1,087		$ 938
Profit and loss		$ 235		$ 195		$ 213
Camara Compensacion de Alto Valor S.A. [Member]
Disclosure of associates [line items]
Ownership interest	[2],[3],[4],[5]	15.00%		14.93%		14.23%
Investment value	[2],[3],[4],[5]	$ 909		$ 866
Profit and loss	[2],[3],[4],[5]	$ 66		$ 98		$ 127
Administrador Financiero del Transantiago S.A. [Member]
Disclosure of associates [line items]
Ownership interest		20.00%		20.00%		20.00%
Investment value		$ 3,098		$ 2,781
Profit and loss		$ 317		$ 230		$ 323
Sociedad Nexus S.A. [Member]
Disclosure of associates [line items]
Ownership interest		12.90%		12.90%		12.90%
Investment value		$ 1,911		$ 1,469
Profit and loss		$ 442		$ 247		$ 225
Servicios de infraestructura de Mercado OTC S.A. [Member]
Disclosure of associates [line items]
Ownership interest	[2],[3]	12.07%		12.07%		11.11%
Investment value	[2],[3]	$ 1,489		$ 1,378
Profit and loss	[2],[3]	115		132		$ (115)
Associates [Member]
Disclosure of associates [line items]
Investment value		27,154		23,479
Profit and loss		3,788		2,825		2,456
Bladex [Member]
Disclosure of associates [line items]
Investment value	[1]	136		136
Profit and loss	[1]	25		26		25
Stock Exchanges [Member]
Disclosure of associates [line items]
Investment value	[1]	287		157
Profit and loss	[1]	150		161		107
Others [Member]
Disclosure of associates [line items]
Investment value	[1]	8		8
Profit and loss	[1]

[1]	Investments in associates and other companies do not have market prices.
[2]	During the last quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.93% and 12.07% respectively.
[3]	During the third quarter of 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA" and "Servicios de Market Infrastructure OTC SA ", the Bank's share in those companies increased to 14.84% and 11.93% respectively.
[4]	In February 2017, Banco Paris sold to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA", the Bank's share increased to 15.00%.
[5]	In October 2015, HSBC Bank Chile sold its ownership share in Camara de Compensacion de Pagos de Alto Valor S.A. to Banco Santander Chile, increasing our participation to 14.23%.

INVESTMENTS IN ASSOCIATES AN126

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of associates [line items]
Assets	$ 962,537	$ 858,762	$ 718,817
Liabilities	843,284	754,547	630,174
Equity	102,607	91,669	78,574
Net income for the year	16,646	12,546	10,069
Centro de Compensacion Automatizado [Member]
Disclosure of associates [line items]
Assets	6,871	5,508	5,148
Liabilities	2,174	1,523	1,897
Equity	3,989	3,241	2,616
Net income for the year	708	744	635
Redbanc S.A. [Member]
Disclosure of associates [line items]
Assets	21,235	19,927	20,296
Liabilities	13,751	13,505	14,877
Equity	6,428	5,307	4,777
Net income for the year	1,056	1,115	642
Transbank S.A. [Member]
Disclosure of associates [line items]
Assets	822,487	710,475	601,627
Liabilities	765,683	660,957	561,325
Equity	48,709	44,309	35,278
Net income for the year	8,095	5,209	5,024
Sociedad interbancaria de Deposito de Valores S.A. [Member]
Disclosure of associates [line items]
Assets	3,720	3,204	2,714
Liabilities	60	103	58
Equity	2,858	2,435	2,093
Net income for the year	802	666	563
Sociedad Nexus S.A. [Member]
Disclosure of associates [line items]
Assets	32,669	30,038	23,153
Liabilities	18,888	19,229	13,682
Equity	10,354	8,898	7,730
Net income for the year	3,427	1,911	1,741
Servicios de infraestructura de Mercado OTC S.A. [Member]
Disclosure of associates [line items]
Assets	17,913	29,258	17,631
Liabilities	6,414	18,258	7,800
Equity	10,963	9,906	10,869
Net income for the year	536	1,094	(1,038)
Administrador Financiero del Transantiago S.A. [Member]
Disclosure of associates [line items]
Assets	51,304	54,253	42,518
Liabilities	35,814	40,345	29,760
Equity	13,907	12,758	11,145
Net income for the year	1,583	1,150	1,613
Camara Compensacion de Alto Valor S.A. [Member]
Disclosure of associates [line items]
Assets	6,338	6,099	5,730
Liabilities	500	627	775
Equity	5,399	4,815	4,066
Net income for the year	$ 439	$ 657	$ 889

INVESTMENTS IN ASSOCIATES AN127

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details 2) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Investments In Associates And Other Companies
Opening balance as of January 1,	$ 23,780	[1]	$ 20,309		$ 17,914
Acquisition of investments (*)	3		1,123		302
Sale of investments
Participation in income	3,962		3,012		2,588
Dividends received	(116)		(217)		(278)
Other equity adjustments	(44)		(447)		(217)
Total	$ 27,585	[1]	$ 23,780	[1]	$ 20,309

[1]	Investments in associates and other companies do not have market prices.

INVESTMENTS IN ASSOCIATES AN128

INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details Narrative)	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016
Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA [Member]
Disclosure of associates [line items]
Ownership interest	14.93%	14.84%
Servicios de Market Infrastructure OTC SA [Member]
Disclosure of associates [line items]
Ownership interest	12.07%	11.93%

INTANGIBLE ASSETS (Details)

INTANGIBLE ASSETS (Details) - CLP ($) $ in Millions	12 Months Ended
INTANGIBLE ASSETS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about intangible assets [line items]
Net balance	$ 63,219	$ 58,085	$ 51,137
Gross carrying amount [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	325,047	297,713	270,432
Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (261,828)	$ (239,628)	(219,295)
Licenses [Member]
Disclosure of detailed information about intangible assets [line items]
Years of useful life	P3Y	P3Y
Average remaining useful life	1 year	2 years
Net balance	$ 1,200	$ 1,656	2,060
Licenses [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	10,932	10,932	10,932
Licenses [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (9,732)	$ (9,276)	(8,872)
Software development [Member]
Disclosure of detailed information about intangible assets [line items]
Years of useful life	P3Y	P3Y
Average remaining useful life	2 years	2 years
Net balance	$ 62,019	$ 56,429	49,077
Software development [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	314,115	286,781	259,500
Software development [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about intangible assets [line items]
Net balance	$ (252,096)	$ (230,352)	$ (210,423)

INTANGIBLE ASSETS (Details 1)

INTANGIBLE ASSETS (Details 1) - CLP ($) $ in Millions	12 Months Ended
INTANGIBLE ASSETS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	$ 58,085	$ 51,137
Balances at end	63,219	58,085
Licenses [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	1,656	2,060
Balances at end	1,200	1,656
Software development [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	56,429	49,077
Balances at end	62,019	56,429
Gross carrying amount [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	297,713	270,432
Acquisitions	32,624	27,281
Disposals and impairment	(5,290)
Other
Balances at end	325,047	297,713
Gross carrying amount [Member] \| Licenses [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	10,932	10,932
Acquisitions
Disposals and impairment
Other
Balances at end	10,932	10,932
Gross carrying amount [Member] \| Software development [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	286,781	259,500
Acquisitions	32,624	27,281
Disposals and impairment	(5,290)
Other
Balances at end	314,115	286,781
Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	(239,628)	(219,295)
Year's amortization	(22,200)	(20,333)
Other
Balances at end	(261,828)	(239,628)
Accumulated depreciation and amortisation [Member] \| Licenses [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	(9,276)	(8,872)
Year's amortization	(456)	(404)
Other
Balances at end	(9,732)	(9,276)
Accumulated depreciation and amortisation [Member] \| Software development [Member]
Disclosure of detailed information about intangible assets [line items]
Balances at beginning	(230,352)	(210,423)
Year's amortization	(21,744)	(19,929)
Other
Balances at end	$ (252,096)	$ (230,352)

PROPERTY, PLANT, AND EQUIPME131

PROPERTY, PLANT, AND EQUIPMENT (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about property, plant and equipment [line items]
Total	$ 242,547	$ 257,379	$ 240,659
Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	533,478	493,001	431,440
Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	(290,931)	(235,622)	(190,781)
Land and buildings [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	159,352	169,809	158,434
Land and buildings [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	274,079	264,016	237,449
Land and buildings [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	(114,727)	(94,207)	(79,015)
Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	63,516	66,506	59,908
Equipment [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	193,689	168,124	137,621
Equipment [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	(130,173)	(101,618)	(77,713)
Ceded under operating leases [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	4,221	4,230	4,238
Ceded under operating leases [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	4,888	4,888	4,888
Ceded under operating leases [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	(667)	(658)	(650)
Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	15,458	16,834	18,079
Other [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	60,822	55,973	51,482
Other [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Total	$ (45,364)	$ (39,139)	$ (33,403)

PROPERTY, PLANT, AND EQUIPME132

PROPERTY, PLANT, AND EQUIPMENT (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	$ 257,379	$ 240,659
Impairment due to damage	(5,644)	(234)	$ (21)
Balances at end	242,547	257,379	240,659
Land and buildings [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	169,809	158,434
Balances at end	159,352	169,809	158,434
Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	66,506	59,908
Balances at end	63,516	66,506	59,908
Ceded under operating leases [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	4,230	4,238
Balances at end	4,221	4,230	4,238
Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	16,834	18,079
Balances at end	15,458	16,834	18,079
Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	493,001	431,440
Additions	58,772	62,355
Disposals	(17,941)	(560)
Impairment due to damage	(354)	(234)
Other
Balances at end	533,478	493,001	431,440
Gross carrying amount [Member] \| Land and buildings [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	264,016	237,449
Additions	27,592	26,567
Disposals	(17,529)
Impairment due to damage
Other
Balances at end	274,079	264,016	237,449
Gross carrying amount [Member] \| Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	168,124	137,621
Additions	26,278	30,965
Disposals	(359)	(228)
Impairment due to damage	(354)	(234)
Other
Balances at end	193,689	168,124	137,621
Gross carrying amount [Member] \| Ceded under operating leases [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	4,888	4,888
Additions
Disposals
Impairment due to damage
Other
Balances at end	4,888	4,888	4,888
Gross carrying amount [Member] \| Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	55,973	51,482
Additions	4,902	4,823
Disposals	(53)	(332)
Impairment due to damage
Other
Balances at end	60,822	55,973	51,482
Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	(235,622)	(190,781)
Additions	(55,622)	(45,025)
Disposals	313	184
Impairment due to damage
Other
Balances at end	(290,931)	(235,622)	(190,781)
Accumulated depreciation and amortisation [Member] \| Land and buildings [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	(94,207)	(79,015)
Additions	(20,744)	(15,192)
Disposals	224
Impairment due to damage
Other
Balances at end	(114,727)	(94,207)	(79,015)
Accumulated depreciation and amortisation [Member] \| Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	(101,618)	(77,713)
Additions	(28,592)	(23,976)
Disposals	37	71
Impairment due to damage
Other
Balances at end	(130,173)	(101,618)	(77,713)
Accumulated depreciation and amortisation [Member] \| Ceded under operating leases [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	(658)	(650)
Additions	(9)	(8)
Disposals
Impairment due to damage
Other
Balances at end	(667)	(658)	(650)
Accumulated depreciation and amortisation [Member] \| Other [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balances at beginning	(39,139)	(33,403)
Additions	(6,277)	(5,849)
Disposals	52	113
Impairment due to damage
Other
Balances at end	$ (45,364)	$ (39,139)	$ (33,403)

PROPERTY, PLANT, AND EQUIPME133

PROPERTY, PLANT, AND EQUIPMENT (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	$ 4,244	$ 4,921
Due within 1 year [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	567	506
Due after 1 year but within 2 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	749	1,029
Due after 2 years but within 3 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	480	502
Due after 3 years but within 4 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	348	473
Due after 4 years but within 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	308	344
Due after 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	$ 1,792	$ 2,067

PROPERTY, PLANT, AND EQUIPME134

PROPERTY, PLANT, AND EQUIPMENT (Details 3) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	$ 145,465	$ 157,524
Due within 1 year [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	26,059	26,455
Due after 1 year but within 2 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	21,343	24,903
Due after 2 years but within 3 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	18,091	20,582
Due after 3 years but within 4 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	15,736	17,321
Due after 4 years but within 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	12,734	14,569
Due after 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Total	$ 51,502	$ 53,694

CURRENT AND DEFERRED TAXES (Det

CURRENT AND DEFERRED TAXES (Details) - CLP ($) $ in Millions	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Summary of current tax liabilities (assets)
Current tax (assets)
Current tax liabilities	6,435		29,294
Total tax payable (recoverable)	6,435		29,294
(Assets) liabilities current taxes detail (net)
Income tax, tax rate	145,112	[1]	145,963	[1]	$ 121,775
Minus:
Provisional monthly payments	(136,562)		(113,700)
Credit for training expenses	(1,768)		(1,972)
Land taxes leasing
Grant credits	(968)		(1,079)
Other	621		82
Total tax payable (recoverable)	$ 6,435		$ 29,294

[1]	The tax rate is 25.5% for 2017 and 24.0% for 2016.

CURRENT AND DEFERRED TAXES (136

CURRENT AND DEFERRED TAXES (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Income tax expense
Current tax	$ 145,112	[1]	$ 145,963	[1]	$ 121,775
Credits (debits) for deferred taxes
Origination and reversal of temporary differences	(6,751)		(37,269)		(45,672)
Valuation provision	5,955
Subtotals	144,316		108,694		76,103
Tax for rejected expenses	610		336		340
Other	105		1		(48)
Net charges for income tax expense	$ 145,031		$ 109,031		$ 76,395

[1]	The tax rate is 25.5% for 2017 and 24.0% for 2016.

CURRENT AND DEFERRED TAXES (137

CURRENT AND DEFERRED TAXES (Details 2) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current And Deferred Taxes Details 2
Tax calculated over profit before tax		$ 183,671	$ 140,991	$ 118,828
Price level restatement for tax purposes	[1]	(21,829)	(32,256)	(28,630)
Single penalty tax (rejected expenses)		610	336	340
Effect of tax reform changes on deferred tax	[2]	(20,600)	86	(10,600)
Real estate taxes				(3,853)
Other		3,179	(126)	310
Effective rates and expenses for income tax		$ 145,031	$ 109,031	$ 76,395
Tax calculated over profit before tax		25.50%	24.00%	22.50%
Price level restatement for tax purposes	[1]	(3.03%)	(5.49%)	(5.42%)
Single penalty tax (rejected expenses)		0.08%	0.06%	0.06%
Effect of tax reform changes on deferred tax	[2]	(2.86%)	0.01%	(2.01%)
Real estate taxes		0.00%	0.00%	(0.73%)
Other		0.44%	(0.02%)	0.06%
Effective rates and expenses for income tax		20.13%	18.56%	14.46%

[1]	Price level restatement on tax purpose capital.
[2]	In accordance with Chilean Law N 20.780 published in September 29, 2014 the income tax rate are 25,5% and 27% for 2017 and 2018 respectively.

CURRENT AND DEFERRED TAXES (138

CURRENT AND DEFERRED TAXES (Details 3) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets
Available for sale investments	$ 368	$ 3,266
Cash flow hedges	908
Total deferred tax assets recognized through other comprehensive income	1,276	3,266
Deferred tax liabilities
Available for sale investments	(841)	(5,036)
Cash flow hedges		(549)
Total deferred tax liabilities recognized through other comprehensive income	(841)	(5,585)
Net deferred tax balances in equity	435	(2,319)
Deferred taxes in equity attributable to equity holders of the Bank	791	(2,097)
Deferred tax in equity attributable to non-controlling interests	$ (356)	$ (222)

CURRENT AND DEFERRED TAXES (139

CURRENT AND DEFERRED TAXES (Details 4) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets
Interests and adjustments	$ 8,645	$ 9,473
Non-recurring charge-offs	11,651	9,891
Assets received in lieu of payment	1,582	2,999
Exchange rate adjustments	882
Property, plant and equipment valuation	4,410	4,570
Allowance for loan losses	160,359	163,456
Provision for expenses	73,518	67,073
Leased assets	98,090	71,834
Subsidiaries tax losses	5,277	9,467
Prepaid expenses	151
Other	5,249	17,571
Total deferred tax assets	369,814	356,334
Deferred tax liabilities
Valuation of investments	(1,911)	(1,802)
Depreciation	(532)
Valuation provision	(5,955)
Other	(432)	(299)
Total deferred tax liabilities	$ (8,830)	$ (2,101)

CURRENT AND DEFERRED TAXES (140

CURRENT AND DEFERRED TAXES (Details 5) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets
Recognized through other comprehensive income	$ 1,276	$ 3,266
Recognized through profit or loss	369,815	356,334
Total deferred tax assets	371,091	359,600
Deferred tax liabilities
Recognized through other comprehensive income	(841)	(5,585)
Recognized through profit or loss	(8,822)	(2,101)
Total deferred tax liabilities	$ (9,663)	$ (7,686)

CURRENT AND DEFERRED TAXES (141

CURRENT AND DEFERRED TAXES (Details Narrative)	12 Months Ended
CURRENT AND DEFERRED TAXES (Details Narrative)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of non-adjusting events after reporting period [line items]
Tax rate		25.50%	24.00%	22.50%
Non-adjusting Events After Reporting Period [Member]
Disclosure of non-adjusting events after reporting period [line items]
Tax rate	27.00%

OTHER ASSETS (Details)

OTHER ASSETS (Details) - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Other Assets
Assets for leasing	[1]	$ 48,099	$ 44,840
Assets received or awarded in lieu of payment
Assets received in lieu of payment		20,904	26,598
Assets awarded at judicial sale		24,800	26,895
Provision on assets received in lieu of payment or awarded		(1,440)	(7,558)
Subtotal		44,264	45,935
Other assets
Guarantee deposits (margin accounts)	[2]	323,767	396,289
Gold investments		478	446
VAT credit		9,570	8,941
Income tax recoverable		1,381	22,244
Prepaid expenses		116,512	148,288
Assets recovered from leasing for sale		4,235	6,040
Pension plan assets		921	1,637
Accounts and notes receivable		59,574	56,624
Notes receivable through brokerage and simultaneous transactions		68,272	60,632
Other receivable assets		53,500	15,082
Other assets	[3]	33,837	40,274
Subtotal		672,047	756,497
Total		$ 764,410	$ 847,272

[1]	Assets available to be granted under the financial leasing agreements.
[2]	Guarantee deposits (margin accounts) correspond to collateral associated with derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result in the Bank delivering or receiving collateral.
[3]	Other assets mainly include settlement of derivatives and other financial transactions.

TIME DEPOSITS AND OTHER TIME143

TIME DEPOSITS AND OTHER TIME LIABILITIES (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deposits and other demand liabilities
Checking accounts	$ 6,272,656	$ 6,144,688
Other deposits and demand accounts	590,221	564,966
Other demand liabilities	905,289	829,661
Total	7,768,166	7,539,315
Time deposits and other time liabilities
Time deposits	11,792,466	13,031,319
Time savings account	116,179	116,451
Other time liabilities	5,300	3,939
Total	$ 11,913,945	$ 13,151,709

INTERBANK BORROWINGS (Details)

INTERBANK BORROWINGS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Interbank borrowings	$ 1,698,357	$ 1,916,368
Loans From Financial Institutions And The Central Bank Of Chile [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	5	7
Loans From Financial Institutions And The Central Bank Of Chile [Member] \| Borrowings And Other Obligations [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	5	7
Loans from domestic financial institutions [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	480	365,436
Loans from foreign financial institutions [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	1,697,872	1,550,925
Loans from foreign financial institutions [Member] \| Sumitomo Mitsui Banking Corporation [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	259,199	233,060
Loans from foreign financial institutions [Member] \| Wells Fargo Bank N.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	235,058	113,631
Loans from foreign financial institutions [Member] \| Bank Of America N.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	228,309
Loans from foreign financial institutions [Member] \| Standard Chartered Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	225,966	101,874
Loans from foreign financial institutions [Member] \| Mizuho Bank Ltd. NY. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	215,967
Loans from foreign financial institutions [Member] \| Citibank N.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	191,471	183,193
Loans from foreign financial institutions [Member] \| The Bank of Nova Scotia [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	86,419	39,967
Loans from foreign financial institutions [Member] \| The Toronto-Dominion Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	62,743
Loans from foreign financial institutions [Member] \| Corporacion Andina De Fomento [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	31,075
Loans from foreign financial institutions [Member] \| Barclays Bank PLC London [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	30,886	33,279
Loans from foreign financial institutions [Member] \| HSBC Bank Plc NY [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	30,875	33,214
Loans from foreign financial institutions [Member] \| The Bank of New York Mellon [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	30,839	82,594
Loans from foreign financial institutions [Member] \| Hsbc Bank Plc [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	30,838
Loans from foreign financial institutions [Member] \| European Investment Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	12,629	13,980
Loans from foreign financial institutions [Member] \| Banco Santander - Hong Kong [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	8,341	6,165
Loans from foreign financial institutions [Member] \| Banco Santander Brasil S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	5,225	5,175
Loans from foreign financial institutions [Member] \| Bank Austria A.G. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	2,317
Loans from foreign financial institutions [Member] \| Bank of China [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	823	311
Loans from foreign financial institutions [Member] \| Shanghai Pudong Development [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	714	205
Loans from foreign financial institutions [Member] \| Bank of Tokyo Mitsubishi [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	453
Loans from foreign financial institutions [Member] \| Keb Hana Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	396	301
Loans from foreign financial institutions [Member] \| Shinhan Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	394	354
Loans from foreign financial institutions [Member] \| Thai Military Bank Public Comp [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	377	425
Loans from foreign financial institutions [Member] \| Hua Nan Commercial Bank Ltd. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	349	83
Loans from foreign financial institutions [Member] \| Mizuho Corporate Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	331	411,753
Loans from foreign financial institutions [Member] \| Banco Santander Central Hispano [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	312
Loans from foreign financial institutions [Member] \| Agricultural Bank of China [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	295	327
Loans from foreign financial institutions [Member] \| Banco de occidente [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	282
Loans from foreign financial institutions [Member] \| Banco Do Brasil S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	268	120
Loans from foreign financial institutions [Member] \| Unicredito Italiano [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	264
Loans from foreign financial institutions [Member] \| Bank of East Asia, Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	241	54
Loans from foreign financial institutions [Member] \| Canara Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	224	91
Loans from foreign financial institutions [Member] \| Hong Kong and Shanghai Banking [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	222	889
Loans from foreign financial institutions [Member] \| International Commercial Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	221
Loans from foreign financial institutions [Member] \| Banque Generale Du Luxembourg [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	207	138
Loans from foreign financial institutions [Member] \| Kookmin Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	201	317
Loans from foreign financial institutions [Member] \| Zhejiang Commercial Bank Ltd. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	175
Loans from foreign financial institutions [Member] \| Banca Monte dei Paschi di Siena [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	162	309
Loans from foreign financial institutions [Member] \| Taiwan Cooperative Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	159
Loans from foreign financial institutions [Member] \| Deutsche Bank A.G. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	157
Loans from foreign financial institutions [Member] \| Yapi Ve Kredi Bankasi A.S. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	155	73
Loans from foreign financial institutions [Member] \| J.P. Morgan Chase Bank N.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	154	49
Loans from foreign financial institutions [Member] \| Banco Commerzbank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	145	47
Loans from foreign financial institutions [Member] \| Bank of Taiwan [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	136	183
Loans from foreign financial institutions [Member] \| Industrial And Commercial Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	119
Loans from foreign financial institutions [Member] \| Bank Of Nova Scotia [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	112
Loans from foreign financial institutions [Member] \| State Bank of India [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	110	289
Loans from foreign financial institutions [Member] \| Woori Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	105	153
Loans from foreign financial institutions [Member] \| Bancolombia S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	94	31
Loans from foreign financial institutions [Member] \| Bank of Communications [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	93	393
Loans from foreign financial institutions [Member] \| Cassa Di Risparmio Di Parma E [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	93	132
Loans from foreign financial institutions [Member] \| China Construccion Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	90	1,044
Loans from foreign financial institutions [Member] \| Metropolitan Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	87	26
Loans from foreign financial institutions [Member] \| Banca Delle Marche Spa [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	76	31
Loans from foreign financial institutions [Member] \| Australia And New Zealand Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	62	21
Loans from foreign financial institutions [Member] \| Abanca Corporacion Bancaria SA [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	60
Loans from foreign financial institutions [Member] \| Casa Di Risparmo De Padova E.R. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	56	76
Loans from foreign financial institutions [Member] \| Societe Generale [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	56
Loans from foreign financial institutions [Member] \| Hanvit Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	55	76
Loans from foreign financial institutions [Member] \| Banca Popolare Dell'Emilia Rom [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	53	26
Loans from foreign financial institutions [Member] \| Banco Bradesco S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	50	113
Loans from foreign financial institutions [Member] \| Punjab National Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	47
Loans from foreign financial institutions [Member] \| Citic Industrial Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	39
Loans from foreign financial institutions [Member] \| Hang Seng Bank Ltd. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	39
Loans from foreign financial institutions [Member] \| Hsbc Bank Usa [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	38
Loans from foreign financial institutions [Member] \| First Union National Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	35	226
Loans from foreign financial institutions [Member] \| Habib Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	34	105
Loans from foreign financial institutions [Member] \| Banco Caixa Geral. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	33
Loans from foreign financial institutions [Member] \| Banco Internacional S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	33
Loans from foreign financial institutions [Member] \| Banca Commerciale Italiana S.P. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	31
Loans from foreign financial institutions [Member] \| Bank of Montreal [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	30	201
Loans from foreign financial institutions [Member] \| Kasikornbank Public Company Li. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	25
Loans from foreign financial institutions [Member] \| Citibank N.A. Turkiye Merkez S. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	23	158
Loans from foreign financial institutions [Member] \| Liu Chong Hing Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	21
Loans from foreign financial institutions [Member] \| Banco Popular Espanol S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	19	56
Loans from foreign financial institutions [Member] \| Taiwan Business Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	19
Loans from foreign financial institutions [Member] \| Fortis Bank S.A./N.V. Brussels [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	15	12
Loans from foreign financial institutions [Member] \| Chang Hwa Commercial Bank Ltd. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	14	17
Loans from foreign financial institutions [Member] \| Banco De Sabadell S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	10
Loans from foreign financial institutions [Member] \| Bank Of China Guangdong Branch [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	8	14
Loans from foreign financial institutions [Member] \| Icici Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	8	25
Loans from foreign financial institutions [Member] \| Banco Popolare Soc Coop [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	6	5
Loans from foreign financial institutions [Member] \| Bank of America [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		213,200
Loans from foreign financial institutions [Member] \| Zurcher Kantonal Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		20,021
Loans from foreign financial institutions [Member] \| Banque Bruxelles Lambert S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		5,797
Loans from foreign financial institutions [Member] \| Banque Cantonale Vaudoise [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		5,714
Loans from foreign financial institutions [Member] \| Denizbank A.S. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		347
Loans from foreign financial institutions [Member] \| Banco Santander - Madrid [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		322
Loans from foreign financial institutions [Member] \| Unicredito Italiano [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		302
Loans from foreign financial institutions [Member] \| Taipei Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		260
Loans from foreign financial institutions [Member] \| ING Bank N.V. - Vienna [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		228
Loans from foreign financial institutions [Member] \| Westpac Banking Corporation [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		226
Loans from foreign financial institutions [Member] \| BNP Paribas S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		218
Loans from foreign financial institutions [Member] \| Oriental Bank of Commerce [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		132
Loans from foreign financial institutions [Member] \| Kotak Mahindra Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		129
Loans from foreign financial institutions [Member] \| Caixabank S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		93
Loans from foreign financial institutions [Member] \| Development Bank Of Singapore [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		80
Loans from foreign financial institutions [Member] \| Hsbc France (formerly Hsbc Ccf) [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		74
Loans from foreign financial institutions [Member] \| Banco General S.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		62
Loans from foreign financial institutions [Member] \| Banco De Credito Del Peru [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		58
Loans from foreign financial institutions [Member] \| Hsbc Bank Canada [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		47
Loans from foreign financial institutions [Member] \| Finans Bank A.S. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		46
Loans from foreign financial institutions [Member] \| Bangkok Bank Public Company Li. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		42
Loans from foreign financial institutions [Member] \| United Bank of India [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		39
Loans from foreign financial institutions [Member] \| Banco Bolivariano C.A. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		38
Loans from foreign financial institutions [Member] \| Banco Bilbao Vizcaya Argentaria [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		34
Loans from foreign financial institutions [Member] \| Hsbc Bank Brasil S.A. - Banco [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		34
Loans from foreign financial institutions [Member] \| Banca Popolare Di Vicenza Scpa [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		31
Loans from foreign financial institutions [Member] \| Bayerische Hypo- Und Vereinsba [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		27
Loans from foreign financial institutions [Member] \| Banco Itau [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		25
Loans from foreign financial institutions [Member] \| China Merchants Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		22
Loans from foreign financial institutions [Member] \| Hsbc Bank Middle East [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		21
Loans from foreign financial institutions [Member] \| Banca Lombarda E Piemontese S. [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		21
Loans from foreign financial institutions [Member] \| Export-Import Bank Of Thailand [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		20
Loans from foreign financial institutions [Member] \| Cassa Di Risparmio In Bologna [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		20
Loans from foreign financial institutions [Member] \| Fifth Third Bank [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		15
Loans from foreign financial institutions [Member] \| Hdfc Bank Limited [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		13
Loans from foreign financial institutions [Member] \| Union Bank of India [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		10
Loans from foreign financial institutions [Member] \| Intesa Sanpaolo Spa [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		7
Loans from foreign financial institutions [Member] \| Deutsche Bank Sociedad Anonima [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		6
Loans from foreign financial institutions [Member] \| Industrial Bank of Korea [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		5
Loans from foreign financial institutions [Member] \| Otros [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		4,169
Loans from foreign financial institutions [Member] \| Bank of Tokio Mitsubishi [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		430
Loans from foreign financial institutions [Member] \| NTT Docomo Ibc [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings		$ 33,149

INTERBANK BORROWINGS (Details 1

INTERBANK BORROWINGS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Interbank borrowings	$ 1,698,357	$ 1,916,368
Loans From Financial Institutions And The Central Bank Of Chile [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	5	7
Loans From Financial Institutions And The Central Bank Of Chile [Member] \| Borrowings And Other Obligations [Member]
Disclosure of financial liabilities [line items]
Interbank borrowings	$ 5	$ 7

INTERBANK BORROWINGS (Details 2

INTERBANK BORROWINGS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	$ 1,698,357	$ 1,916,368
Loans from domestic financial institutions [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	480	365,436
Loans from domestic financial institutions [Member] \| Due within 1 year [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	480	365,436
Loans from domestic financial institutions [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings
Loans from domestic financial institutions [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings
Loans from domestic financial institutions [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings
Loans from domestic financial institutions [Member] \| Due after 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings

INTERBANK BORROWINGS (Details 3

INTERBANK BORROWINGS (Details 3) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	$ 1,698,357	$ 1,916,368
Loans from foreign financial institutions [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	1,697,872	1,550,925
Loans from foreign financial institutions [Member] \| Due within 1 year [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	1,477,318	525,521
Loans from foreign financial institutions [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	185,519	725,315
Loans from foreign financial institutions [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings	35,035	186,352
Loans from foreign financial institutions [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings		80,473
Loans from foreign financial institutions [Member] \| Due after 5 years [Member]
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]
Interbank borrowings		$ 33,264

ISSUED DEBT INSTRUMENTS AND 148

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Subtotals	$ 242,030	$ 240,016
Subtotals	709,365	7,326,372
Issued debt instruments and other financial liabilities	7,335,683	7,566,388
Mortgage Finance Bonds [Member]
Disclosure of financial liabilities [line items]
Subtotals	34,479	46,251
Senior bonds [Member]
Disclosure of financial liabilities [line items]
Subtotals	6,186,760	6,416,274
Mortgage Bonds [Member]
Disclosure of financial liabilities [line items]
Subtotals	99,222	104,182
Subordinated Bonds [Member]
Disclosure of financial liabilities [line items]
Subtotals	773,192	759,665
Obligations To Public Sector [Member]
Disclosure of financial liabilities [line items]
Subtotals	59,470	61,490
Other Domestic Obligations [Member]
Disclosure of financial liabilities [line items]
Subtotals	175,389	175,028
Foreign Obligations [Member]
Disclosure of financial liabilities [line items]
Subtotals	$ 7,171	$ 3,498

ISSUED DEBT INSTRUMENTS AND 149

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Issued debt instruments current	$ 350,401	$ 1,151,271
Issued debt instruments non current	6,743,252	6,175,101
Issued debt instruments	709,365	7,326,372
Other financial liabilities current	212,825	158,488
Other financial liabilities non current	29,205	81,528
Other financial liabilities	242,030	240,016
Issued debt instruments and other financial liabilities current	563,226	1,309,759
Issued debt instruments and other financial liabilities non current	6,772,457	6,256,629
Issued debt instruments and other financial liabilities	7,335,683	7,566,388
Mortgage Finance Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments current	8,691	11,236
Issued debt instruments non current	25,788	35,015
Issued debt instruments	34,479	46,251
Senior bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments current	337,166	1,135,713
Issued debt instruments non current	5,849,594	5,280,561
Issued debt instruments	6,186,760	6,416,274
Mortgage Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments current	4,541	4,318
Issued debt instruments non current	94,681	99,864
Issued debt instruments	99,222	104,182
Subordinated Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments current	3	4
Issued debt instruments non current	773,189	759,661
Issued debt instruments	$ 773,192	$ 759,665

ISSUED DEBT INSTRUMENTS AND 150

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365	$ 7,326,372
Mortgage Finance Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	34,479	46,251
Mortgage Finance Bonds [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	8,691	11,236
Mortgage Finance Bonds [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	6,744	8,673
Mortgage Finance Bonds [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	6,096	6,928
Mortgage Finance Bonds [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	5,155	6,246
Mortgage Finance Bonds [Member] \| Due after 4 years but within 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	4,101	5,278
Mortgage Finance Bonds [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 3,692	$ 7,890

ISSUED DEBT INSTRUMENTS AND 151

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 3) € in Millions, ¥ in Millions, SFr in Millions, $ in Millions, $ in Millions, $ in Millions,
in Millions

Dec. 31, 2017CLP ($)

Dec. 31, 2017USD ($)

Dec. 31, 2017EUR (€)

Dec. 31, 2017JPY (¥)

Dec. 31, 2017CLF (
)

Dec. 31, 2017CHF (SFr)

Dec. 31, 2017AUD ($)

Dec. 31, 2016CLP ($)

Dec. 31, 2016USD ($)

Dec. 31, 2016JPY (¥)

Dec. 31, 2016CLF (
)

Dec. 31, 2016CHF (SFr)

Dec. 31, 2016AUD ($)

Disclosure of financial liabilities [line items]

Issued debt instruments

$ 709,365

$ 7,326,372

Senior bonds [Member]

Disclosure of financial liabilities [line items]

Issued debt instruments

6,186,760

6,416,274

Senior bonds [Member] | Unidad de Fomento (funds code) [Member]

Disclosure of financial liabilities [line items]

Issued debt instruments |

3,542,006

3,588,373

Senior bonds [Member] | USD

Disclosure of financial liabilities [line items]

Issued debt instruments

$ 1,045,465

$ 909,354

Senior bonds [Member] | Switzerland, Francs

Disclosure of financial liabilities [line items]

Issued debt instruments | SFr

SFr 268,281

SFr 568,549

Senior bonds [Member] | Chile, Pesos

Disclosure of financial liabilities [line items]

Issued debt instruments

$ 1,135,527

$ 1,037,515

Senior bonds [Member] | Australia, Dollars

Disclosure of financial liabilities [line items]

Issued debt instruments

$ 14,534

$ 60,890

Senior bonds [Member] | Japan, Yen

Disclosure of financial liabilities [line items]

Issued debt instruments | ¥

¥ 126,059

¥ 179,426

Senior bonds [Member] | Euro Member Countries, Euro

Disclosure of financial liabilities [line items]

Issued debt instruments

€ 54,888

¥ 72,167

ISSUED DEBT INSTRUMENTS AND 152

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 4) € in Millions, ¥ in Millions, SFr in Millions, $ in Millions, $ in Millions, $ in Millions,
in Millions

12 Months Ended

Dec. 31, 2017CLP ($)

Dec. 31, 2017USD ($)

Dec. 31, 2017CLF (
)

Dec. 31, 2017AUD ($)

Dec. 31, 2016CLP ($)

Dec. 31, 2016USD ($)

Dec. 31, 2016EUR (€)

Dec. 31, 2016JPY (¥)

Dec. 31, 2016CLF (
)

Dec. 31, 2016CHF (SFr)

Dec. 31, 2017USD ($)

Dec. 31, 2017CLF (
)

Dec. 31, 2017AUD ($)

May 10, 2017USD ($)

Mar. 08, 2017USD ($)

Mar. 06, 2017USD ($)

Jan. 27, 2017USD ($)

Jan. 13, 2017USD ($)

Dec. 31, 2016USD ($)

Dec. 31, 2016EUR (€)

Dec. 31, 2016JPY (¥)

Dec. 31, 2016CLF (
)

Dec. 31, 2016CHF (SFr)

Nov. 29, 2016USD ($)

Disclosure of financial liabilities [line items]

Notional amount

$ 177,224,139

$ 177,941,295

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | R1 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P5Y6M

Issuance rate (annual)

2.50%

Series approval date

Sep. 1,
2015

Series maximum amount |

Maturity date

Mar. 1,
2021

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | R2 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P7Y6M

Issuance rate (annual)

2.60%

Series approval date

Sep. 1,
2015

Series maximum amount |

Maturity date

Mar. 1,
2023

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | R3 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P10Y6M

Issuance rate (annual)

3.00%

Series approval date

Sep. 1,
2015

Series maximum amount |

Maturity date

Mar. 1,
2026

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | R5 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P7Y

Issuance rate (annual)

2.55%

Series approval date

Dec. 1,
2015

Series maximum amount |

Maturity date

Dec. 1,
2022

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | R6 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P9Y

Issuance rate (annual)

2.65%

Series approval date

Dec. 1,
2015

Series maximum amount |

Maturity date

Dec. 1,
2024

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | P9 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P10Y6M

Issuance rate (annual)

2.60%

Series approval date

Mar. 1,
2015

Series maximum amount |

Maturity date

Sep. 1,
2025

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | T2 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P4Y6M

Issuance rate (annual)

2.25%

Series approval date

Feb. 1,
2016

Series maximum amount |

Maturity date

Aug. 1,
2020

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | T5 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P6Y

Issuance rate (annual)

2.40%

Series approval date

Feb. 1,
2016

Series maximum amount |

Maturity date

Feb. 1,
2022

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Series maximum amount |

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | T9 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P7Y

Issuance rate (annual)

2.60%

Series approval date

Feb. 1,
2016

Series maximum amount |

Maturity date

Feb. 1,
2024

Senior bonds [Member] | Unidad de Fomento (funds code) [Member] | T13 [Member]

Disclosure of financial liabilities [line items]

Notional amount |

Terms Years

P9Y

Issuance rate (annual)

2.75%

Series approval date

Feb. 1,
2016

Series maximum amount |

Maturity date

Feb. 1,
2026

Senior bonds [Member] | Chile, Pesos | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 160,000

Series maximum amount

300,000

Senior bonds [Member] | Chile, Pesos | R4 [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 100,000

Terms Years

P5Y6M

Issuance rate (annual)

5.50%

Series approval date

Sep. 1,
2015

Series maximum amount

$ 100,000

Maturity date

Mar. 1,
2021

Senior bonds [Member] | Chile, Pesos | P4 [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 50,000

Terms Years

P5Y

Issuance rate (annual)

4.80%

Series approval date

Mar. 1,
2015

Series maximum amount

$ 150,000

Maturity date

Mar. 1,
2020

Senior bonds [Member] | Chile, Pesos | SD [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 60,000

$ 140,000

Terms Years

P5Y

Issuance rate (annual)

5.50%

Series approval date

Jun. 1,
2014

Series maximum amount

$ 200,000

Maturity date

Jun. 1,
2019

Senior bonds [Member] | Chile, Pesos | SC [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 200,000

Terms Years

P10Y

Issuance rate (annual)

5.95%

Series approval date

Jun. 1,
2014

Series maximum amount

$ 200,000

Maturity date

Jun. 1,
2024

Senior bonds [Member] | Chile, Pesos | P3 [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 50,000

Terms Years

P7Y

Issuance rate (annual)

5.50%

Series approval date

Jan. 1,
2015

Series maximum amount

$ 50,000

Maturity date

Jan. 1,
2022

Senior bonds [Member] | Chile, Pesos | P1 [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 50,000

Terms Years

P10Y

Issuance rate (annual)

5.80%

Series approval date

Jan. 1,
2015

Series maximum amount

$ 50,000

Maturity date

Jan. 1,
2025

Senior bonds [Member] | Chile, Pesos | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 590,000

Senior bonds [Member] | Chile, Pesos | T16 [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 100,000

Terms Years

P6Y

Issuance rate (annual)

5.20%

Series approval date

Feb. 1,
2016

Series maximum amount

$ 100,000

Maturity date

Aug. 1,
2021

Senior bonds [Member] | Japan, Yen | JPY [Member]

Disclosure of financial liabilities [line items]

Notional amount | ¥

¥ 3,000

Terms Years

P5Y

Issuance rate (annual)

0.115%

Series approval date

Jun. 22,
2016

Series maximum amount | ¥

¥ 3,000

Maturity date

Jun. 29,
2021

Senior bonds [Member] | Japan, Yen | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount | ¥

¥ 3,000

Senior bonds [Member] | USD

Disclosure of financial liabilities [line items]

Notional amount

$ 10,000,000

$ 418,853,000

$ 6,900,000

$ 960,000

$ 600,000

$ 6,895,000

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 100

$ 10

Terms Years

P3Y

P5Y

Description of Issuance rate (annual)

Libor-USD 3M+1.05%

Series approval date

Jul. 20,
2017

Jun. 2,
2016

Series maximum amount

$ 100

$ 10

Maturity date

Jul. 27,
2020

Jun. 9,
2021

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

Terms Years

P3Y

P5Y

Description of Issuance rate (annual)

Libor-USD 3M+0.80%

Libor-USD 3M+1.22%

Series approval date

Jul. 21,
2017

Jun. 8,
2016

Series maximum amount

$ 50

$ 10

Maturity date

Jul. 27,
2020

Jun. 17,
2021

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

Terms Years

P3Y

P5Y

Description of Issuance rate (annual)

Libor-USD 3M+0.80%

Libor-USD 3M+1.20%

Series approval date

Jul. 21,
2017

Aug. 1,
2016

Series maximum amount

$ 50

$ 10

Maturity date

Jul. 27,
2020

Aug. 16,
2021

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

185

Terms Years

P4Y

P5Y

Description of Issuance rate (annual)

Libor-USD 3M+0.83%

Libor-USD 3M+1.20%

Series approval date

Aug. 23,
2017

Nov. 10,
2016

Series maximum amount

$ 10

$ 185

Maturity date

Nov. 23,
2021

Nov. 28,
2021

Senior bonds [Member] | USD | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount

770

$ 215

Series maximum amount

$ 770

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

Terms Years

P4Y

Description of Issuance rate (annual)

Libor-USD 3M+0.83%

Series approval date

Aug. 23,
2017

Series maximum amount

$ 10

Maturity date

Nov. 23,
2021

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

Terms Years

P3Y

Description of Issuance rate (annual)

Libor-USD 3M+0.75%

Series approval date

Sep. 14,
2017

Series maximum amount

$ 50

Maturity date

Sep. 15,
2020

Senior bonds [Member] | USD | DN [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 500

Terms Years

P3Y

Issuance rate (annual)

2.50%

Series approval date

Dec. 12,
2017

Series maximum amount

$ 500

Maturity date

Dec. 15,
2020

Senior bonds [Member] | Euro Member Countries, Euro | EUR [Member]

Disclosure of financial liabilities [line items]

Notional amount | €

€ 54

Terms Years

P12Y

Issuance rate (annual)

1.307%

Series approval date

Aug. 5,
2016

Series maximum amount | €

€ 54

Maturity date

Aug. 17,
2028

Senior bonds [Member] | Euro Member Countries, Euro | EUR [Member]

Disclosure of financial liabilities [line items]

Notional amount | €

€ 20

Terms Years

P8Y

Issuance rate (annual)

0.80%

Series approval date

Aug. 4,
2016

Series maximum amount | €

€ 20

Maturity date

Aug. 19,
2024

Senior bonds [Member] | Euro Member Countries, Euro | EUR [Member]

Disclosure of financial liabilities [line items]

Notional amount | €

€ 30

Terms Years

P3Y

Issuance rate (annual)

0.25%

Series approval date

Dec. 9,
2016

Series maximum amount | €

€ 30

Maturity date

Dec. 20,
2019

Senior bonds [Member] | Euro Member Countries, Euro | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount | €

€ 104

Senior bonds [Member] | Switzerland, Francs | CHF [Member]

Disclosure of financial liabilities [line items]

Notional amount | SFr

SFr 125

Terms Years

P8Y6M

Issuance rate (annual)

35.00%

Series approval date

Nov. 14,
2016

Series maximum amount | SFr

SFr 125

Maturity date

May 30,
2025

Senior bonds [Member] | Switzerland, Francs | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount | SFr

SFr 125

Senior bonds [Member] | Australia, Dollars | Total [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 30

Series maximum amount

$ 30

Senior bonds [Member] | Australia, Dollars | Senior Bonds Related To AUD [Member]

Disclosure of financial liabilities [line items]

Notional amount

$ 30

Terms Years

P10Y

Issuance rate (annual)

3.96%

Series approval date

Dec. 5,
2017

Series maximum amount

$ 30

Maturity date

Dec. 12,
2027

ISSUED DEBT INSTRUMENTS AND 153

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 5) $ in Millions, $ in Millions	Dec. 31, 2017CLP ($)	Dec. 12, 2017CLP ($)	Dec. 06, 2017CLP ($)	Nov. 29, 2017CLP ($)	Nov. 03, 2017CLP ($)	Aug. 29, 2017CLP ($)	Aug. 28, 2017CLP ($)	Jul. 21, 2017CLP ($)	Jul. 10, 2017CLP ($)	Jun. 19, 2017CLP ($)	Jun. 05, 2017CLP ($)	Jun. 02, 2017CLP ($)	Jun. 01, 2017CLP ($)	May 26, 2017CLP ($)	May 17, 2017CLP ($)	May 16, 2017CLP ($)	May 12, 2017CLP ($)	May 10, 2017USD ($)	Mar. 08, 2017USD ($)	Mar. 06, 2017USD ($)	Jan. 27, 2017USD ($)	Jan. 13, 2017USD ($)	Dec. 31, 2016CLP ($)	Nov. 29, 2016USD ($)
Disclosure of financial liabilities [line items]
Notional amount	$ 177,224,139																						$ 177,941,295
Senior bonds [Member] \| USD
Disclosure of financial liabilities [line items]
Notional amount																		$ 10,000,000	$ 418,853,000	$ 6,900,000	$ 960,000	$ 600,000		$ 6,895,000
Senior bonds [Member] \| UF
Disclosure of financial liabilities [line items]
Notional amount			$ 20,000	$ 400,000	$ 14,000	$ 2,000	$ 200,000	$ 10,000	$ 770,000	$ 265,000	$ 130,000	$ 300,000	$ 590,000	$ 340,000	$ 15,000	$ 690,000	$ 1,000,000
Senior bonds [Member] \| UF
Disclosure of financial liabilities [line items]
Notional amount						$ 270,000	$ 200,000
Senior bonds [Member] \| CLP
Disclosure of financial liabilities [line items]
Notional amount		$ 10,990,000,000

ISSUED DEBT INSTRUMENTS AND 154

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 6) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365	$ 7,326,372
Senior bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	6,186,760	6,416,274
Senior bonds [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	337,166	1,135,713
Senior bonds [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	866,936	321,509
Senior bonds [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	832,978	816,919
Senior bonds [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	1,177,081	663,289
Senior bonds [Member] \| Due after 4 years but within 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	902,647	754,768
Senior bonds [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 2,069,952	$ 2,724,076

ISSUED DEBT INSTRUMENTS AND 155

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 7) $ in Millions, in Millions	Dec. 31, 2017CLP ($)	Dec. 31, 2017CLF ( )	Dec. 31, 2016CLP ($)	Dec. 31, 2016CLF ( )
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365		$ 7,326,372
Mortgage Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 99,222		$ 104,182
Mortgage Bonds [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments \|		99,222		104,182

ISSUED DEBT INSTRUMENTS AND 156

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 8) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365	$ 7,326,372
Mortgage Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	99,222	104,182
Mortgage Bonds [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	4,541	4,318
Mortgage Bonds [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	7,291	6,932
Mortgage Bonds [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	7,526	7,156
Mortgage Bonds [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	7,769	7,386
Mortgage Bonds [Member] \| Due after 4 years but within 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	8,019	7,626
Mortgage Bonds [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 64,076	$ 70,764

ISSUED DEBT INSTRUMENTS AND 157

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 9) $ in Millions, in Millions	Dec. 31, 2017CLP ($)	Dec. 31, 2017CLF ( )	Dec. 31, 2016CLP ($)	Dec. 31, 2016CLF ( )
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365		$ 7,326,372
Subordinated Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	773,192		759,665
Subordinated Bonds [Member] \| Chile, Pesos
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 3		$ 4
Subordinated Bonds [Member] \| Unidad de Fomento (funds code) [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments \|		773,189		759,661

ISSUED DEBT INSTRUMENTS AND 158

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 10) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 709,365	$ 7,326,372
Subordinated Bonds [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	773,192	759,665
Subordinated Bonds [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	3	4
Subordinated Bonds [Member] \| Due after 1 year but within 2 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments
Subordinated Bonds [Member] \| Due after 2 years but within 3 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments
Subordinated Bonds [Member] \| Due after 3 years but within 4 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments
Subordinated Bonds [Member] \| Due after 4 years but within 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments
Subordinated Bonds [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Issued debt instruments	$ 773,189	$ 759,661

ISSUED DEBT INSTRUMENTS AND 159

ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 11) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Non-current portion:
Non-current portion subtotal	$ 29,205	$ 81,528
Current portion:
Amounts due to credit card operators	173,271	151,620
Acceptance of letters of credit	2,780	2,069
Other long-term financial obligations, short-term portion	36,774	4,799
Current portion subtotal	212,825	158,488
Total other financial liabilities	242,030	240,016
Due after 1 year but within 2 years [Member]
Non-current portion:
Non-current portion subtotal	23,401	33,777
Due after 2 years but within 3 years [Member]
Non-current portion:
Non-current portion subtotal	4,181	24,863
Due after 3 years but within 4 years [Member]
Non-current portion:
Non-current portion subtotal	194	5,794
Due after 4 years but within 5 years [Member]
Non-current portion:
Non-current portion subtotal	210	1,973
Due after 5 years [Member]
Non-current portion:
Non-current portion subtotal	$ 1,219	$ 15,121

MATURITY OF FINANCIAL ASSETS160

MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Details) - CLP ($) $ in Millions	Dec. 31, 2017		Dec. 31, 2016
Disclosure of financial assets [line items]
Total financial assets	$ 35,823,605		$ 37,030,025
Total financial liabilities	32,675,685		34,091,826
Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	7,768,166		7,539,315
Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities	486,726		288,473
Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities	268,061		212,437
Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	11,913,945		13,151,709
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,139,488		2,292,161
Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,698,357		1,916,368
Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	7,093,653		7,326,372
Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	242,030		240,016
Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities	408,313		480,926
Demand [Member]
Disclosure of financial assets [line items]
Total financial assets	3,214,657		3,888,267
Total financial liabilities	8,966,477		8,587,847
Demand [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	7,768,166		7,539,315
Demand [Member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities	486,726		288,473
Demand [Member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Demand [Member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	121,479		121,527
Demand [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Demand [Member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	4,130		4,557
Demand [Member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Demand [Member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	177,663		153,049
Demand [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities	408,313		480,926
Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	2,480,411		4,129,179
Total financial liabilities	5,600,399		6,828,564
Not later than one month [member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Not later than one month [member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Not later than one month [member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities	268,061		212,437
Not later than one month [member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	5,120,171		6,105,767
Not later than one month [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	144,410		92,335
Not later than one month [member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	46,013		373,423
Not later than one month [member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	21,043		43,141
Not later than one month [member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	701		1,461
Not later than one month [member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	2,655,971		2,627,884
Total financial liabilities	4,852,836		4,618,826
Later than one month and not later than three months [member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one month and not later than three months [member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one month and not later than three months [member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one month and not later than three months [member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	4,201,271		4,193,906
Later than one month and not later than three months [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	196,444		122,565
Later than one month and not later than three months [member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	397,419		115,769
Later than one month and not later than three months [member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	55,119		185,425
Later than one month and not later than three months [member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,583		1,161
Later than one month and not later than three months [member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	4,933,977		5,339,624
Total financial liabilities	3,991,665		4,880,777
More than 3 months to 1 year [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 3 months to 1 year [Member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 3 months to 1 year [Member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 3 months to 1 year [Member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,299,018		2,537,299
More than 3 months to 1 year [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	356,288		263,893
More than 3 months to 1 year [Member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,030,241		1,154,063
More than 3 months to 1 year [Member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	274,239		922,705
More than 3 months to 1 year [Member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	31,879		2,817
More than 3 months to 1 year [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	13,285,016		15,984,954
Total financial liabilities	23,411,377		24,916,014
Due within 1 year [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	7,768,166		7,539,315
Due within 1 year [Member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities	486,726		288,473
Due within 1 year [Member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities	268,061		212,437
Due within 1 year [Member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	11,741,939		12,958,499
Due within 1 year [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	697,142		478,793
Due within 1 year [Member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,477,803		1,647,812
Due within 1 year [Member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	350,401		1,151,271
Due within 1 year [Member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	212,826		158,488
Due within 1 year [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities	408,313		480,926
Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets	6,240,042		5,581,761
Total financial liabilities	2,461,121		2,072,940
Later than one year and not later than three years [member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one year and not later than three years [member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one year and not later than three years [member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than one year and not later than three years [member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	106,833		118,101
Later than one year and not later than three years [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	378,582		494,539
Later than one year and not later than three years [member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	220,554		233,542
Later than one year and not later than three years [member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,727,571		1,168,117
Later than one year and not later than three years [member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	27,581		58,641
Later than one year and not later than three years [member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets	4,375,295		3,753,757
Total financial liabilities	2,466,344		1,848,234
Later than three years and not later than five years [member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than three years and not later than five years [member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than three years and not later than five years [member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Later than three years and not later than five years [member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,811		13,913
Later than three years and not later than five years [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	358,358		346,948
Later than three years and not later than five years [member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities			35,014
Later than three years and not later than five years [member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,104,771		1,444,593
Later than three years and not later than five years [member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	404		7,766
Later than three years and not later than five years [member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets	11,569,324		11,350,331
Total financial liabilities	4,610,589		3,679,897
Due after 5 years [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due after 5 years [Member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due after 5 years [Member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due after 5 years [Member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	62,362		61,196
Due after 5 years [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	705,406		971,881
Due after 5 years [Member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Due after 5 years [Member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	2,910,910		3,562,391
Due after 5 years [Member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,219		15,121
Due after 5 years [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets	22,184,661		20,685,849
Total financial liabilities	8,607,362		8,531,763
More than 1 Year [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 1 Year [Member] \| Cash items in process of being cleared [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 1 Year [Member] \| Obligations under repurchase agreements [Member]
Disclosure of financial assets [line items]
Total financial liabilities
More than 1 Year [Member] \| Time deposits and other time liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	172,006		193,210
More than 1 Year [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial liabilities	1,442,346		1,813,368
More than 1 Year [Member] \| Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial liabilities	220,554		268,556
More than 1 Year [Member] \| Issue debt instruments [Member]
Disclosure of financial assets [line items]
Total financial liabilities	6,743,252		6,175,101
More than 1 Year [Member] \| Other financial liabilities [Member]
Disclosure of financial assets [line items]
Total financial liabilities	29,204		81,528
More than 1 Year [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Total financial liabilities
Cash and deposits in banks [Member]
Disclosure of financial assets [line items]
Total financial assets	1,452,922		2,279,389
Cash and deposits in banks [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets	1,452,922		2,279,389
Cash and deposits in banks [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	1,452,922		2,279,389
Cash and deposits in banks [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets
Cash and deposits in banks [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member]
Disclosure of financial assets [line items]
Total financial assets	668,145		495,283
Cash items in process of collection [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets	668,145		495,283
Cash items in process of collection [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	668,145		495,283
Cash items in process of collection [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets
Cash items in process of collection [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets
Trading investments [Member]
Disclosure of financial assets [line items]
Total financial assets	485,736		396,987
Trading investments [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets
Trading investments [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	72,983		52,443
Trading investments [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	4,024		13,252
Trading investments [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	68,277		118,845
Trading investments [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	145,284		184,540
Trading investments [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets	110,824		75,378
Trading investments [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets	90,507		106,808
Trading investments [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets	139,121		30,261
Trading investments [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets	340,452		212,447
Investments under resale agreements [Member]
Disclosure of financial assets [line items]
Total financial assets			6,736
Investments under resale agreements [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets			6,736
Investments under resale agreements [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets			6,736
Investments under resale agreements [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets
Investments under resale agreements [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Total financial assets	2,238,647		2,500,782
Financial derivative contracts [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets
Financial derivative contracts [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	135,780		82,243
Financial derivative contracts [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	198,876		120,653
Financial derivative contracts [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	410,415		292,801
Financial derivative contracts [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	745,071		495,697
Financial derivative contracts [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets	385,428		531,094
Financial derivative contracts [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets	371,090		357,833
Financial derivative contracts [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets	737,058		1,116,158
Financial derivative contracts [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets	1,493,576		2,005,085
Interbank Borrowings [Member]
Disclosure of financial assets [line items]
Total financial assets	162,685	[1]	272,807	[2]
Interbank Borrowings [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets		[1]		[2]
Interbank Borrowings [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	6,064	[1]	12,859	[2]
Interbank Borrowings [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	152,911	[1]	135,756	[2]
Interbank Borrowings [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	3,710	[1]	124,143	[2]
Interbank Borrowings [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	162,685	[1]	272,758	[2]
Interbank Borrowings [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets		[1]	44	[2]
Interbank Borrowings [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets		[1]		[2]
Interbank Borrowings [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets		[1]	5	[2]
Interbank Borrowings [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets		[1]	49	[2]
Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Total financial assets	27,563,229	[3]	26,933,624	[4]
Loans and accounts receivables from customers [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets	769,823	[3]	717,306	[4]
Loans and accounts receivables from customers [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	2,206,734	[3]	2,393,216	[4]
Loans and accounts receivables from customers [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	2,288,372	[3]	2,108,001	[4]
Loans and accounts receivables from customers [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	4,348,975	[3]	4,488,993	[4]
Loans and accounts receivables from customers [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	9,613,904	[3]	9,707,516	[4]
Loans and accounts receivables from customers [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets	5,187,501	[3]	4,937,271	[4]
Loans and accounts receivables from customers [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets	2,938,326	[3]	2,909,140	[2]
Loans and accounts receivables from customers [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets	9,823,498	[3]	9,379,697	[4]
Loans and accounts receivables from customers [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets	17,949,325	[3]	17,226,108	[4]
Available for sale investments [Member]
Disclosure of financial assets [line items]
Total financial assets	2,574,546		3,388,906
Available for sale investments [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets
Available for sale investments [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets	58,850		1,581,682
Available for sale investments [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets	11,788		250,222
Available for sale investments [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	102,600		314,842
Available for sale investments [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	173,238		2,146,746
Available for sale investments [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets	556,289		37,974
Available for sale investments [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets	975,372		379,976
Available for sale investments [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets	869,647		824,210
Available for sale investments [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets	2,401,308		1,242,160
Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Total financial assets	323,767		396,289
Guarantee Deposits (Margin Accounts) [Member] \| Demand [Member]
Disclosure of financial assets [line items]
Total financial assets	323,767		396,289
Guarantee Deposits (Margin Accounts) [Member] \| Not later than one month [member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| Later than one month and not later than three months [member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| Due within 1 year [Member]
Disclosure of financial assets [line items]
Total financial assets	323,767		396,289
Guarantee Deposits (Margin Accounts) [Member] \| Later than one year and not later than three years [member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| Later than three years and not later than five years [member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| Due after 5 years [Member]
Disclosure of financial assets [line items]
Total financial assets
Guarantee Deposits (Margin Accounts) [Member] \| More than 1 Year [Member]
Disclosure of financial assets [line items]
Total financial assets

[1]	Interbank loans are presented on a gross basis. The amount of allowance is Ch$472 million.
[2]	Interbank loans are presented on a gross basis. The amount of allowance is Ch$4,135 million.
[3]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million.
[4]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 429,442 million, Mortgage loans Ch$ 57,009 million, and Consumer loans Ch$ 300,019 million.

PROVISIONS (Details)

PROVISIONS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Provisions [abstract]
Provisions for personnel salaries and expenses	$ 97,576	$ 72,592
Provisions for mandatory dividends	168,840	142,815
Provisions for contingent loan risk	10,079	11,399
Provisions for contingencies associated with administrative claims and leasing contracts	27,303	65,404
Total	$ 303,798	$ 292,210	$ 274,998

PROVISIONS (Details 1)

PROVISIONS (Details 1) - CLP ($) $ in Millions	12 Months Ended
PROVISIONS (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of other provisions [line items]
Balance at beginning	$ 292,210	$ 274,998
Provisions established	291,513	318,394
Application of provisions	(224,907)	(207,241)
Provisions released	(55,018)	(93,941)
Reclassifications
Other
Balance at end	303,798	292,210
Personnel salaries and expenses [Member]
Disclosure of other provisions [line items]
Balance at beginning	72,592	64,861
Provisions established	106,687	80,298
Application of provisions	(81,703)	(72,567)
Provisions released
Reclassifications
Other
Balance at end	97,576	72,592
Mandatory dividends [Member]
Disclosure of other provisions [line items]
Balance at beginning	142,815	134,539
Provisions established	168,840	142,815
Application of provisions	(142,815)	(134,539)
Provisions released
Reclassifications
Other
Balance at end	168,840	142,815
Contingent loans [Member]
Disclosure of other provisions [line items]
Balance at beginning	11,399	10,750
Provisions established	7,341	9,789
Application of provisions
Provisions released	(8,661)	(9,140)
Reclassifications
Other
Balance at end	10,079	11,399
Contingencies [Member]
Disclosure of other provisions [line items]
Balance at beginning	65,404	64,848
Provisions established	8,645	85,492
Application of provisions	(389)	(135)
Provisions released	(46,357)	(84,801)
Reclassifications
Other
Balance at end	$ 27,303	$ 65,404

PROVISIONS (Details 2)

PROVISIONS (Details 2) - CLP ($) $ in Millions	12 Months Ended
PROVISIONS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Provisions [abstract]
Provision for seniority compensation	$ 17,874	$ 10,376
Provision for stock-based personnel benefits
Provision for performance bonds	53,947	38,510
Provision for vacations	23,039	21,800
Provision for other personnel benefits	2,716	1,906
Total	$ 97,576	$ 72,592

OTHER LIABILITIES (Details)

OTHER LIABILITIES (Details) - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Other Liabilities
Accounts and notes payable		$ 196,965	$ 154,159
Unearned income		601	509
Guarantees received (margin accounts)	[1]	408,313	480,926
Notes payable through brokerage and simultaneous transactions		17,799	27,745
Other payable obligations	[2]	58,921	80,100
Withheld VAT		1,887	1,964
Other liabilities	[3]	60,877	50,382
Total		$ 745,363	$ 795,785

[1]	Guarantee deposits (margin accounts) correspond to collateral associated to derivative financial contracts to mitigate the counterparty credit risk and are mainly established in cash. These guarantees operate when mark to market of derivative financial instruments exceed the levels of threshold agreed in the contracts, which could result in the Bank delivering or receiving collateral.
[2]	Other payable obligations mainly relates to settlement of derivatives and other financial transactions derived from the operation of the Bank.
[3]	Other liabilities: mainly include reimbursement of insurance commissions.

CONTINGENCIES AND COMMITMENT165

CONTINGENCIES AND COMMITMENTS (Details) - Contingent Loans [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of contingent liabilities in business combination [line items]
Letters of credit issued	$ 201,699	$ 158,800
Foreign letters of credit confirmed	75,499	57,686
Guarantees	1,823,793	1,752,610
Personal guarantees	81,577	125,050
Subtotal	2,182,568	2,094,146
Available on demand credit lines	8,135,489	7,548,820
Other irrevocable credit commitments	260,691	260,266
Total	$ 10,578,748	$ 9,903,232

CONTINGENCIES AND COMMITMENT166

CONTINGENCIES AND COMMITMENTS (Details 1) - Held Securities [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Third party operations
Collections	$ 175,200	$ 163,303
Assets from third parties managed by the Bank and its affiliates	1,660,804	1,586,405
Subtotal	1,836,004	1,749,708
Custody of securities
Securities held in custody	383,002	390,155
Securities held in custody deposited in other entity	760,083	687,610
Issued securities held in custody	22,046,701	18,768,572
Subtotal	23,189,786	19,846,337
Total	$ 25,025,790	$ 21,596,045

CONTINGENCIES AND COMMITMENT167

CONTINGENCIES AND COMMITMENTS (Details Narrative) $ in Millions, $ in Millions	Dec. 31, 2017CLP ($)	Dec. 31, 2016CLP ($)	Dec. 31, 2016USD ($)
Disclosure of contingent liabilities in business combination [line items]
Assets from third parties managed by the Bank and its affiliates	$ 1,660,768	$ 1,586,370
Legal proceedings contingent liability [member]
Disclosure of contingent liabilities in business combination [line items]
Estimated financial effect of contingent liabilities	1,214,200	1,194,000
Legal proceedings contingent liability [member] \| Subsidiaries [Member]
Disclosure of contingent liabilities in business combination [line items]
Estimated financial effect of contingent liabilities	$ 0	$ 48,000
Contingent liability for guarantees [member] \| USD
Disclosure of contingent liabilities in business combination [line items]
Insurance policy cover amount for bank and subsidiaries			$ 50,000

EQUITY (Details)

EQUITY (Details) - shares	12 Months Ended
EQUITY (Details) - shares	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
EQUITY
Issued as of beginning of period	188,446,126,794	188,446,126,794	188,446,126,794
Issuance of paid shares
Issuance of outstanding shares
Issued as of end of period	188,446,126,794	188,446,126,794	188,446,126,794

EQUITY (Details 1)

EQUITY (Details 1) - shares		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Disclosure of transactions between related parties [line items]
Shares		157,207,260,723	153,645,193,123	155,930,063,123
American Depository Receipts (ADR)	[1],[2]	31,238,866,071	34,800,933,671	32,516,063,671
Total		188,446,126,794	188,446,126,794	188,446,126,794		188,446,126,794
Percentage of equity holding		100.00%	100.00%	100.00%
Santander Chile Holding S.A. [Member]
Disclosure of transactions between related parties [line items]
Shares		66,822,519,695	66,822,519,695	66,822,519,695
American Depository Receipts (ADR)	[2]
Total		66,822,519,695	66,822,519,695	66,822,519,695
Percentage of equity holding		35.46%	35.46%	35.46%
Teatinos Siglo XXI Inversiones Limitada [Member]
Disclosure of transactions between related parties [line items]
Shares		59,770,481,573	59,770,481,573	59,770,481,573
American Depository Receipts (ADR)	[2]
Total		59,770,481,573	59,770,481,573	59,770,481,573
Percentage of equity holding		31.72%	31.72%	31.72%
The Bank New York Mellon [Member]
Disclosure of transactions between related parties [line items]
Shares					[2]
American Depository Receipts (ADR)	[1],[2]	31,238,866,071	34,800,933,671	32,516,063,671
Total		31,238,866,071	34,800,933,671	32,516,063,671	[2]
Percentage of equity holding		16.65%	18.47%	17.25%	[2]
Banks on behalf of third parties [Member]
Disclosure of transactions between related parties [line items]
Shares		13,892,691,988	12,257,100,312	11,878,070,560
American Depository Receipts (ADR)	[2]
Total		13,892,691,988	12,257,100,312	11,878,070,560
Percentage of equity holding		7.37%	6.50%	6.30%
Pension funds (AFP) on behalf of third parties [Member]
Disclosure of transactions between related parties [line items]
Shares		6,896,552,755	6,990,857,997	8,887,560,424
American Depository Receipts (ADR)	[2]
Total		6,896,552,755	6,990,857,997	8,887,560,424
Percentage of equity holding		3.66%	3.71%	4.72%
Stock brokers on behalf of third parties [Member]
Disclosure of transactions between related parties [line items]
Shares		3,762,310,365	3,071,882,351	3,460,285,074
American Depository Receipts (ADR)	[2]
Total		3,762,310,365	3,071,882,351	3,460,285,074
Percentage of equity holding		2.00%	1.63%	1.84%
Other minority holders [Member]
Disclosure of transactions between related parties [line items]
Shares		6,062,704,347	4,732,351,195	5,111,145,797
American Depository Receipts (ADR)	[2]
Total		6,062,704,347	4,732,351,195	5,111,145,797
Percentage of equity holding		3.21%	2.51%	2.71%

[1]	American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets.
[2]	As of August 4, 2015, Banco Santander Chile signed a contract which appoints The Bank of New York Mellon as the commercial bank authorized to trade ADRs, replacing J.P.Morgan Chase Bank NA.

EQUITY (Details 2)

EQUITY (Details 2) - CLP ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic earnings per share
Total attributable to the equity holders of the Bank	$ 562,801	$ 476,067	$ 448,466
Weighted average number of outstanding shares	188,446,126,794	188,446,126,794	188,446,126,794
Basic earnings per share (in Ch$)	$ 2,987	$ 2,526	$ 2,380
Diluted earnings per share
Total attributable to the equity holders of the Bank	$ 562,801	$ 476,067	$ 448,466
Weighted average number of outstanding shares	188,446,126,794	188,446,126,794	188,446,126,794
Adjusted number of shares	188,446,126,794	188,446,126,794	188,446,126,794
Diluted earnings per share (in Ch$)	$ 2,987	$ 2,526	$ 2,380

EQUITY (Details 3)

EQUITY (Details 3) - CLP ($) $ in Millions	12 Months Ended
EQUITY (Details 3) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Available for sale investments
As of beginning of period	$ 7,375	$ (7,093)	$ 21,684
Gain (losses) on the re-measurement of available for sale investments, before tax	(10,384)	2,267	(51,178)
Recycling adjustments on cash flow hedges, before tax	4,864	12,201	22,401
Subtotals	(5,520)	14,468	(28,777)
As of end of period	1,855	7,375	(7,093)
Cash flow hedges
As of beginning of period	2,288	8,626	10,725
Gains (losses) on the re-measurement of cash flow hedges, before tax	(5,850)	(6,261)	(2,105)
Recycling adjustments on cash flow hedges, before tax		(77)	6
Amounts removed from equity and included in carrying amount of non-financial asset (liability) which acquisition or incurrence was hedged as a highly probable transaction
Subtotals	(5,850)	(6,338)	(2,099)
As of end of period	(3,562)	2,288	8,626
Other comprehensive income, before taxes	(1,707)	9,663	1,533
Income tax related to other comprehensive income components
Income tax relating to available for sale investments	(473)	(1,770)	1,596
Income tax relating to cash flow hedges	908	(549)	(1,940)
Total	435	(2,319)	(344)
Other comprehensive income, net of tax	(1,272)	7,344	1,189
Attributable to:
Equity holders of the Bank	(2,312)	6,640	1,288
Non-controlling interest	$ 1,040	$ 704	$ (99)

EQUITY (Details Narrative)

EQUITY (Details Narrative) - CLP ($) $ in Millions	12 Months Ended
EQUITY (Details Narrative) - CLP ($) $ in Millions	Dec. 31, 2017	Apr. 30, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
EQUITY
Shares outstanding	188,446,126,794		188,446,126,794	188,446,126,794	188,446,126,794
Increase in capital	$ 891,303
Percentage of capitalization earnings		30.00%
Retained earnings to reserves	$ 141,706		$ 112,219

NON-CONTROLLING INTEREST (Detai

NON-CONTROLLING INTEREST (Details) - CLP ($) $ in Millions	12 Months Ended
NON-CONTROLLING INTEREST (Details) - CLP ($) $ in Millions	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Disclosure of subsidiaries [line items]
Equity	$ 41,883		$ 29,341		$ 30,181
Income	12,448		2,365		3,263
Other comprehensive income
Available for sale investments	470		1,054		(132)
Deferred tax	(134)		(251)		30
Total other comprehensive income	336		803		(102)
Comprehensive income	$ 12,784		$ 3,168		$ 3,161
Santander Agente de Valores Limitada [Member]
Disclosure of subsidiaries [line items]
Non-controlling	0.97%		0.97%		0.97%
Equity	$ 389		$ 492		$ 652
Income	132		116		98
Other comprehensive income
Available for sale investments					(4)
Deferred tax					1
Total other comprehensive income					(3)
Comprehensive income	$ 132		$ 116		$ 95
Santander S.A. Sociedad Securitizadora [Member]
Disclosure of subsidiaries [line items]
Non-controlling	0.36%		0.36%		0.36%
Equity	$ 1		$ 2		$ 2
Income
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income
Santander Corredores de Bolsa Limitada [Member]
Disclosure of subsidiaries [line items]
Non-controlling	49.00%		49.41%	[1]	49.41%
Equity	$ 21,000		$ 19,966	[1]	$ 21,765
Income	702		1,130	[1]	816
Other comprehensive income
Available for sale investments	470		1,054	[1]	(128)
Deferred tax	(134)		(251)	[1]	29
Total other comprehensive income	336		803	[1]	(99)
Comprehensive income	$ 1,038		$ 1,933	[1]	$ 717
Santander Corredora de Seguros Limitada [Member]
Disclosure of subsidiaries [line items]
Non-controlling	0.25%		0.25%		0.25%
Equity	$ 167		$ 164		$ 156
Income	4		7		(5)
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income	4		7		(5)
Subsidiaries [Member]
Disclosure of subsidiaries [line items]
Equity	21,557		20,624		22,575
Income	838		1,253		909
Other comprehensive income
Available for sale investments	470		1,054		(132)
Deferred tax	(134)		(251)		30
Total other comprehensive income	336		803		(102)
Comprehensive income	$ 1,174		$ 2,056		$ 807
Bansa Santander S.A. [Member]
Disclosure of subsidiaries [line items]
Non-controlling	100.00%	[2]	100.00%		100.00%
Equity	$ 17,401	[2]	$ 6,533		$ 6,004
Income	10,869	[2]	529		334
Other comprehensive income
Available for sale investments		[2]
Deferred tax		[2]
Total other comprehensive income		[2]
Comprehensive income	$ 10,869	[2]	$ 529		$ 334
Santander Gestion de Recaudacion y Cobranzas Limitada [Member]
Disclosure of subsidiaries [line items]
Non-controlling	100.00%		100.00%		100.00%	[3]
Equity	$ 2,925		$ 2,184		$ 1,602	[3]
Income	741		583		564	[3]
Other comprehensive income
Available for sale investments						[3]
Deferred tax						[3]
Total other comprehensive income						[3]
Comprehensive income	$ 741		$ 583		$ 564	[3]
Multinegocios S.A. [Member]
Disclosure of subsidiaries [line items]
Non-controlling					100.00%
Equity
Income					310
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income					$ 310
Servicios Administrativos y Financieros Limitada. [Member]
Disclosure of subsidiaries [line items]
Non-controlling					100.00%
Equity
Income					550
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income					$ 550
Multiservicios de Negocios Limitada. [Member]
Disclosure of subsidiaries [line items]
Non-controlling					100.00%
Equity
Income					596
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income					596
Total Entities Controlled Through Other Considerations [Member]
Disclosure of subsidiaries [line items]
Equity	20,326		8,717		7,606
Income	11,610		1,112		2,354
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income	$ 11,610		$ 1,112		$ 2,354
Servicios de Cobranzas Fiscalex Limitada [Member]
Disclosure of subsidiaries [line items]
Non-controlling
Equity
Income
Other comprehensive income
Available for sale investments
Deferred tax
Total other comprehensive income
Comprehensive income

[1]	Ex Santander S.A. Corredores de Bolsa, See Note 1.
[2]	In September 2017, Bansa Santander S.A. celebrated a legal cession of rights,which generated an income of Ch$20,663 million before tax (Ch$15,197 million net of taxes)
[3]	As of June 30, 2015, these entities have finished sales services to the Bank and therefore they have been excluded from the consolidation perimeter.

NON-CONTROLLING INTEREST (De174

NON-CONTROLLING INTEREST (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of subsidiaries [line items]
Assets	$ 246,559	$ 256,316	$ 313,674
Liabilities	76,475	90,663	131,672
Capital	142,079	147,601	168,206
Net income	28,005	18,052	13,796
Santander Corredora de Seguros Limitada [Member]
Disclosure of subsidiaries [line items]
Assets	76,177	75,000	72,860
Liabilities	9,803	10,065	10,588
Capital	64,937	62,276	60,765
Net income	1,437	2,659	1,507
Santander Corredores de Bolsa Limitada [Member]
Disclosure of subsidiaries [line items]
Assets	88,711	86,473	71,118
Liabilities	45,855	45,724	26,763
Capital	41,424	38,356	42,618
Net income	1,432	2,393	1,737
Santander Agente de Valores Limitada [Member]
Disclosure of subsidiaries [line items]
Assets	44,910	54,486	131,305
Liabilities	4,732	3,666	64,049
Capital	26,569	38,851	57,554
Net income	13,609	11,969	9,702
Santander S.A. Sociedad Securitizadora [Member]
Disclosure of subsidiaries [line items]
Assets	400	509	566
Liabilities	50	77	53
Capital	432	512	561
Net income	(82)	(80)	(48)
Santander Gestion de Recaudacion y Cobranzas Limitada [Member]
Disclosure of subsidiaries [line items]
Assets	10,826	8,547	6,194
Liabilities	7,901	6,363	4,592
Capital	2,184	1,602	1,038
Net income	741	582	564
Bansa Santander S.A. [Member]
Disclosure of subsidiaries [line items]
Assets	25,535	31,301	31,631
Liabilities	8,134	24,768	25,627
Capital	6,533	6,004	5,670
Net income	$ 10,868	$ 529	$ 334

INTEREST INCOME (Details)

INTEREST INCOME (Details) - CLP ($) $ in Millions	12 Months Ended
INTEREST INCOME (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	$ 2,031,133	$ 2,123,422	$ 2,112,800
Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	1,773,066	1,739,427	1,605,355
Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	242,390	365,006	472,054
Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	15,677	18,989	35,391
Resale Agreements [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	939	1,488	1,075
Resale Agreements [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	939	1,488	1,075
Resale Agreements [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting
Resale Agreements [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting
Interbank Loan [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	969	295	375
Interbank Loan [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	969	295	375
Interbank Loan [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting
Interbank Loan [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting
Commercial loans [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	847,927	880,995	864,710
Commercial loans [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	752,013	742,432	687,464
Commercial loans [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	85,398	130,904	168,752
Commercial loans [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	10,525	7,659	8,494
Mortgage loans [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	469,758	539,209	569,569
Mortgage loans [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	320,041	304,116	259,941
Mortgage loans [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	149,303	228,081	286,437
Mortgage loans [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	414	7,012	23,191
Consumer Loans [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	618,033	609,130	593,509
Consumer Loans [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	612,932	604,152	586,385
Consumer Loans [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	363	660	3,418
Consumer Loans [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	4,738	4,318	3,706
Investment Instruments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	79,797	78,724	67,620
Investment Instruments [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	74,000	75,808	60,004
Investment Instruments [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	5,797	2,916	7,616
Investment Instruments [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting
Other Interest Income [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	13,710	13,581	15,942
Other Interest Income [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	12,172	11,136	10,111
Other Interest Income [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting	1,538	2,445	5,831
Other Interest Income [Member] \| Hedged Of Prepaid Fees [Member]
Disclosure of financial assets [line items]
Interest income not including income from hedge accounting

INTEREST INCOME (Details 1)

INTEREST INCOME (Details 1) - CLP ($) $ in Millions	12 Months Ended
INTEREST INCOME (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	$ (719,850)	$ (799,636)	$ (749,727)
Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(617,200)	(644,540)	(572,027)
Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(102,650)	(155,096)	(177,700)
Demand Deposits [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(14,546)	(17,046)	(15,218)
Demand Deposits [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(13,851)	(16,003)	(13,875)
Demand Deposits [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(695)	1,043	(1,343)
Repurchase Agreements [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(6,514)	(2,822)	(6,893)
Repurchase Agreements [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(6,514)	(2,822)	(6,893)
Repurchase Agreements [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting
Time Deposits And Liabilities [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(362,330)	(438,666)	(393,544)
Time Deposits And Liabilities [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(341,821)	(399,720)	(346,174)
Time Deposits And Liabilities [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(20,509)	(38,946)	(47,370)
Interbank Loan [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(26,805)	(19,803)	(15,000)
Interbank Loan [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(26,805)	(19,803)	(14,998)
Interbank Loan [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting			(2)
Issued Debt Instruments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(296,197)	(303,425)	(296,590)
Issued Debt Instruments [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(220,027)	(197,973)	(183,561)
Issued Debt Instruments [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(76,170)	(105,452)	(113,029)
Other financial liabilities [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(3,249)	(3,789)	(4,250)
Other financial liabilities [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(2,946)	(3,008)	(3,070)
Other financial liabilities [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(303)	(781)	(1,180)
Other Interest Expense [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(10,209)	(14,085)	(18,232)
Other Interest Expense [Member] \| Hedged Of Interest [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	(5,236)	(5,211)	(3,456)
Other Interest Expense [Member] \| Hedged Of Inflation Adjustments [Member]
Disclosure of financial assets [line items]
Interest expense not including expenses from hedge accounting	$ (4,973)	$ (8,874)	$ (14,776)

INTEREST INCOME (Details 2)

INTEREST INCOME (Details 2) - CLP ($) $ in Millions	12 Months Ended
INTEREST INCOME (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest Income
Interest income not including income from hedge accounting	$ 2,031,133	$ 2,123,422	$ 2,112,800
Interest expense not including expense from hedge accounting	(719,850)	(799,636)	(749,727)
Net Interest income (expense) from hedge accounting	1,311,283	1,323,786	1,363,073
Hedge accounting (net)	15,408	(42,420)	(107,867)
Total net interest income	$ 1,326,691	$ 1,281,366	$ 1,255,206

FEES AND COMMISSIONS (Details)

FEES AND COMMISSIONS (Details) - CLP ($) $ in Millions	12 Months Ended
FEES AND COMMISSIONS (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fee and commission income
Fees and commissions for lines of credits and overdrafts	$ 7,413	$ 5,754	$ 6,597
Fees and commissions for guarantees and letters of credit	33,882	35,911	35,276
Fees and commissions for card services	201,791	195,566	175,262
Fees and commissions for management of accounts	31,901	31,540	30,291
Fees and commissions for collections and payments	44,312	31,376	30,399
Fees and commissions for intermediation and management of securities	10,090	9,304	10,000
Insurance brokerage fees	36,430	40,882	39,252
Office banking	15,669	14,145	15,224
Fees for other services rendered	43,123	38,038	35,978
Other fees earned	30,947	28,668	24,621
Total	455,558	431,184	402,900
Fee and commission expense
Compensation for card operation	(149,809)	(143,509)	(129,196)
Fees and commissions for securities transactions	(858)	(946)	(1,315)
Office banking	(15,283)	(14,671)	(15,320)
Other fees	(10,545)	(17,634)	(19,442)
Total	(176,495)	(176,760)	(165,273)
Net fees and commissions income	$ 279,063	$ 254,424	$ 237,627

NET INCOME (EXPENSE) FROM FI179

NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income (expense) from financial operations
Trading derivatives	$ (18,974)	$ (395,209)	$ (503,981)
Trading investments	10,008	18,229	21,505
Sale of loans and accounts receivables from customers
Current portfolio	3,020	1,469	921
Charged-off portfolio	3,020	2,720	(58)
Available for sale investments	8,956	14,598	23,655
Repurchase of issued bonds	(742)	(8,630)	(14)
Other income (expense) from financial operations	(2,492)	(211)	75
Total income (expense)	$ 2,796	$ (367,034)	$ (457,897)

NET FOREIGN EXCHANGE GAIN (L180

NET FOREIGN EXCHANGE GAIN (LOSS) (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net foreign exchange gain (loss)
Net profit (loss) from currency exchange differences	$ 113,115	$ 116,117	$ (197,875)
Hedging derivatives	22,933	399,875	777,254
Income from assets indexed to foreign currency	(9,190)	(8,745)	25,421
Income from liabilities indexed to foreign currency	98	145	(1,404)
Total	$ 126,956	$ 507,392	$ 603,396

PROVISIONS FOR LOAN LOSSES (Det

PROVISIONS FOR LOAN LOSSES (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Provisions released	$ 55,018	$ 93,941
Net charge offs of individually significant loans	302,255	342,083	$ 399,277
Provisions for Loan Losses [Member] \| Individual Allowance [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Net charge offs of individually significant loans	15,699	11,222	12,955
Provisions for Loan Losses [Member] \| Loans to Customers [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans	(15,699)	(11,222)	(12,955)
Provisions established	(516,646)	(544,240)	(551,822)
Total provisions and charge-offs	(532,345)	(555,462)	(564,777)
Provisions released	146,563	135,081	97,360
Recovery of loans previously charged off	83,527	78,298	68,140
Net charge offs of individually significant loans	(302,255)	(342,083)	(399,277)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Individual Allowance [Member] \| Interbank Loan [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(307)	(3,052)	(1,357)
Total provisions and charge-offs	(307)	(3,052)	(1,357)
Provisions released	3,970	83	192
Recovery of loans previously charged off
Net charge offs of individually significant loans	3,663	(2,969)	(1,165)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Individual Allowance [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans	(15,699)	(11,222)	(12,955)
Provisions established	(64,658)	(61,002)	(124,968)
Total provisions and charge-offs	(80,357)	(72,224)	(137,923)
Provisions released	55,925	43,183	46,614
Recovery of loans previously charged off	11,114	11,142	8,978
Net charge offs of individually significant loans	(13,318)	(17,899)	(82,331)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Individual Allowance [Member] \| Contingent Loan [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(3,117)	(11,986)	(2,808)
Total provisions and charge-offs	(3,117)	(11,986)	(2,808)
Provisions released	7,001	6,963	5,042
Recovery of loans previously charged off
Net charge offs of individually significant loans	3,884	(5,023)	2,234
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Group Allowance [Member] \| Commercial loans [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(148,681)	(133,855)	(136,778)
Total provisions and charge-offs	(148,681)	(133,855)	(136,778)
Provisions released	20,491	14,432	17,885
Recovery of loans previously charged off	21,499	16,043	17,054
Net charge offs of individually significant loans	(106,691)	(103,380)	(101,839)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Group Allowance [Member] \| Mortgage loans [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(43,621)	(50,892)	(34,373)
Total provisions and charge-offs	(43,621)	(50,892)	(34,373)
Provisions released	11,427	34,246	7,205
Recovery of loans previously charged off	10,942	10,041	6,543
Net charge offs of individually significant loans	(21,252)	(6,605)	(20,625)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Group Allowance [Member] \| Consumer Loans [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(252,038)	(280,544)	(248,937)
Total provisions and charge-offs	(252,038)	(280,544)	(248,937)
Provisions released	46,089	30,790	18,126
Recovery of loans previously charged off	39,972	41,072	35,565
Net charge offs of individually significant loans	(165,977)	(208,682)	(195,246)
Provisions for Loan Losses [Member] \| Loans to Customers [Member] \| Group Allowance [Member] \| Contingent Loan [Member]
Disclosure of financial assets [line items]
Charged-off individually significant loans
Provisions established	(4,224)	(2,909)	(2,601)
Total provisions and charge-offs	(4,224)	(2,909)	(2,601)
Provisions released	1,660	5,384	2,296
Recovery of loans previously charged off
Net charge offs of individually significant loans	$ (2,564)	$ 2,475	$ (305)

PROVISIONS FOR LOAN LOSSES (182

PROVISIONS FOR LOAN LOSSES (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Net charge offs of individually significant loans	$ 302,255	$ 342,083	$ 399,277
Provisions for Loan Losses [Member] \| Commercial loans [Member] \| Individual Allowance [Member]
Disclosure of financial assets [line items]
Charge-off of loans	51,978	47,605	50,656
Provision applied	(36,279)	(36,383)	(37,701)
Net charge offs of individually significant loans	$ 15,699	$ 11,222	$ 12,955

PERSONNEL SALARIES AND EXPEN183

PERSONNEL SALARIES AND EXPENSES (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Personnel Salaries And Expenses
Personnel compensation	$ 250,962	$ 249,703	$ 233,707
Bonuses or gratifications	75,181	77,649	78,260
Stock-based benefits	2,752	331	66
Seniority compensation	26,120	26,263	34,012
Pension plans	2,039	(150)	431
Training expenses	2,867	2,835	3,186
Day care and kindergarten	2,505	3,072	2,992
Health funds	4,748	4,777	4,474
Welfare funds	896	806	754
Other personnel expenses	28,897	29,847	29,181
Total	$ 396,967	$ 395,133	$ 387,063

ADMINISTRATIVE EXPENSES (Detail

ADMINISTRATIVE EXPENSES (Details) - CLP ($) $ in Millions	12 Months Ended
ADMINISTRATIVE EXPENSES (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
General administrative expenses
Maintenance and repair of property, plant and equipment	$ 21,359	$ 19,901	$ 20,002
Office lease	26,136	28,098	27,472
Equipment lease	96	280	134
Insurance payments	3,354	3,842	3,656
Office supplies	6,862	5,747	6,232
IT and communication expenses	39,103	37,351	28,420
Heating, and other utilities	5,468	4,863	4,764
Security and valuables transport services	12,181	14,793	15,393
Representation and personnel travel expenses	4,262	5,440	4,590
Judicial and notarial expenses	974	952	2,103
Fees for technical reports and auditing	9,379	7,631	7,301
Other general administrative expenses	10,244	10,076	7,759
General administrative expenses	139,418	138,974	127,826
Outsourced services
Data processing	34,880	36,068	39,286
Products sale			226
Archive services	3,324	4,427	1,047
Valuation services	2,419	3,489	2,969
Outsourcing	6,878	5,404	7,275
Other	9,899	6,369	10,110
Outsourced services	57,400	55,757	60,913
Board expenses	1,290	1,371	1,465
Marketing expenses	18,877	17,844	18,483
Taxes, payroll taxes, and contributions
Real estate taxes	1,443	1,435	1,813
Patents	1,646	1,618	1,589
Other taxes	24	93	3
Contributions to SBIF	10,005	9,321	8,439
Taxes, payroll taxes, and contributions	13,118	12,467	11,844
Total	$ 230,103	$ 226,413	$ 220,531

DEPRECIATION, AMORTIZATION, 185

DEPRECIATION, AMORTIZATION, AND IMPAIRMENT (Details) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Depreciation and amortization
Depreciation of property, plant, and equipment	$ (55,623)	$ (45,025)	$ (36,195)
Amortization of Intangible assets	(22,200)	(20,334)	(17,419)
Total depreciation and amortization	(77,823)	(65,359)	(53,614)
Impairment of property, plant, and equipment	(354)	(234)	(21)
Impairment of intangibles	(5,290)
Total	$ (83,467)	$ (65,593)	$ (53,635)

OTHER OPERATING INCOME AND E186

OTHER OPERATING INCOME AND EXPENSES (Details) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Operating Income And Expenses
Income from assets received in lieu of payment		$ 3,330	$ 1,663	$ 2,455
Income from sale of investments in other companies				617
Release of contingencies provisions	[1]	29,903
Other income
Leases		264	519	708
Income from sale of property, plant and equipment	[2]	23,229	2,017	381
Recovery of provisions for contingencies
Compensation from insurance companies due to damages		1,237	1,530	435
Other		4,053	698	1,843
Subtotal		28,783	4,764	3,367
Total		$ 62,016	$ 6,427	$ 6,439

[1]	In accordance with IAS 37, the Bank recorded contingencies provisions, which during 2017 were favorable to the Bank.
[2]	Corresponds to legal cession of rights made by Bansa Santander S.A. which result in an income of Ch$20.663 million, as stated in Note N25.

OTHER OPERATING INCOME AND E187

OTHER OPERATING INCOME AND EXPENSES (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowances and expenses for assets received in lieu of payment
Provision on assets received in lieu of payment	$ 3,912	$ 9,246	$ 7,803
Expenses for maintenance of assets received in lieu of payment	1,679	2,170	2,397
Subtotal	5,591	11,416	10,200
Credit card expenses	3,070	3,636	4,624
Customer services	2,563	3,734	3,919
Other expenses
Operating charge-offs	1,607	6,146	5,359
Life insurance and general product insurance policies	23,475	18,393	11,225
Additional tax on expenses paid overseas		142	2,651
Provisions for contingencies		4,238	15,230
Retail association payment	912
Other	31,195	21,197	5,521
Subtotal	57,189	50,116	39,986
Total	$ 68,413	$ 68,902	$ 58,729

TRANSACTIONS WITH RELATED PA188

TRANSACTIONS WITH RELATED PARTIES (Details) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans and accounts receivable:
Allowance for loan losses	$ 1,440	$ 7,558
Santander Group Companies [Member]
Loans and accounts receivable:
Loans and accounts receivable:	80,076	81,687	$ 77,388
Allowance for loan losses	(209)	(209)	(213)
Net loans	79,867	81,478	77,175
Guarantees	361,452	434,141	499,803
Contingent loans:
Contingent loans:	396,829	464,369	539,584
Allowance for contingent loans	(4)	(5)	(11)
Net contingent loans	396,825	464,364	539,573
Santander Group Companies [Member] \| Personal guarantees [Member]
Contingent loans:
Contingent loans:
Santander Group Companies [Member] \| Letters of credit [Member]
Contingent loans:
Contingent loans:	19,251	27,268	29,275
Santander Group Companies [Member] \| Guarantees [member]
Contingent loans:
Contingent loans:	377,578	437,101	510,309
Associates [member]
Loans and accounts receivable:
Loans and accounts receivable:	771	533	565
Allowance for loan losses	(9)	(35)	(190)
Net loans	762	498	375
Guarantees
Contingent loans:
Contingent loans:
Allowance for contingent loans
Net contingent loans
Associates [member] \| Personal guarantees [Member]
Contingent loans:
Contingent loans:
Associates [member] \| Letters of credit [Member]
Contingent loans:
Contingent loans:
Associates [member] \| Guarantees [member]
Contingent loans:
Contingent loans:
Key management personnel of entity or parent [member]
Loans and accounts receivable:
Loans and accounts receivable:	27,053	26,424	28,674
Allowance for loan losses	(177)	(87)	(62)
Net loans	26,876	26,337	28,612
Guarantees	23,868	23,636	25,493
Contingent loans:
Contingent loans:
Allowance for contingent loans
Net contingent loans
Key management personnel of entity or parent [member] \| Personal guarantees [Member]
Contingent loans:
Contingent loans:
Key management personnel of entity or parent [member] \| Letters of credit [Member]
Contingent loans:
Contingent loans:
Key management personnel of entity or parent [member] \| Guarantees [member]
Contingent loans:
Contingent loans:
Other related parties [member]
Loans and accounts receivable:
Loans and accounts receivable:	7,793	7,100	1,963
Allowance for loan losses	(18)	(34)	(20)
Net loans	7,775	7,066	1,943
Guarantees	7,164	5,486	1,632
Contingent loans:
Contingent loans:			2
Allowance for contingent loans	1
Net contingent loans	34		2
Other related parties [member] \| Personal guarantees [Member]
Contingent loans:
Contingent loans:
Other related parties [member] \| Letters of credit [Member]
Contingent loans:
Contingent loans:	33
Other related parties [member] \| Guarantees [member]
Contingent loans:
Contingent loans:			2
Commercial Loans [Member] \| Santander Group Companies [Member]
Loans and accounts receivable:
Loans and accounts receivable:	80,076	81,687	77,388
Commercial Loans [Member] \| Associates [member]
Loans and accounts receivable:
Loans and accounts receivable:	771	533	565
Commercial Loans [Member] \| Key management personnel of entity or parent [member]
Loans and accounts receivable:
Loans and accounts receivable:	3,947	4,595	5,841
Commercial Loans [Member] \| Other related parties [member]
Loans and accounts receivable:
Loans and accounts receivable:	7,793	7,100	1,963
Mortgage Loans [Member]
Loans and accounts receivable:
Allowance for loan losses	69,066	57,009	62,427
Mortgage Loans [Member] \| Santander Group Companies [Member]
Loans and accounts receivable:
Loans and accounts receivable:
Mortgage Loans [Member] \| Associates [member]
Loans and accounts receivable:
Loans and accounts receivable:
Mortgage Loans [Member] \| Key management personnel of entity or parent [member]
Loans and accounts receivable:
Loans and accounts receivable:	18,796	18,046	20,559
Mortgage Loans [Member] \| Other related parties [member]
Loans and accounts receivable:
Loans and accounts receivable:
Consumer Loans [Member]
Loans and accounts receivable:
Allowance for loan losses	283,756	300,019	267,507
Consumer Loans [Member] \| Santander Group Companies [Member]
Loans and accounts receivable:
Loans and accounts receivable:
Consumer Loans [Member] \| Associates [member]
Loans and accounts receivable:
Loans and accounts receivable:
Consumer Loans [Member] \| Key management personnel of entity or parent [member]
Loans and accounts receivable:
Loans and accounts receivable:	4,310	3,783	2,274
Consumer Loans [Member] \| Other related parties [member]
Loans and accounts receivable:
Loans and accounts receivable:

TRANSACTIONS WITH RELATED PA189

TRANSACTIONS WITH RELATED PARTIES (Details 1) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Santander Group Companies [Member]
Disclosure of transactions between related parties [line items]
Opening balances	$ 546,058	$ 616,968	$ 500,449
Loans granted	78,214	122,729	276,383
Loans payments	(147,366)	(193,189)	(159,864)
Ending balances	476,906	546,058	616,968
Associates [member]
Disclosure of transactions between related parties [line items]
Opening balances	532	565	9,614
Loans granted	318	203	7
Loans payments	(79)	(236)	(9,056)
Ending balances	771	532	565
Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Opening balances	26,423	28,675	27,087
Loans granted	7,777	8,580	8,991
Loans payments	(7,149)	(10,832)	(7,403)
Ending balances	27,051	26,423	28,675
Other related parties [member]
Disclosure of transactions between related parties [line items]
Opening balances	7,100	1,966	9,516
Loans granted	1,050	6,808	4,113
Loans payments	(324)	(1,674)	(11,663)
Ending balances	$ 7,826	$ 7,100	$ 1,966

TRANSACTIONS WITH RELATED PA190

TRANSACTIONS WITH RELATED PARTIES (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and deposits in banks	$ 613,361	$ 570,317
Financial derivative contracts	2,238,647	2,500,782
Available for sale investments	2,574,546	3,388,906
Other assets	764,410	847,272
Liabilities
Deposits and other demand liabilities	7,768,166	7,539,315
Obligations under repurchase agreements Loans	268,061	212,437
Time deposits and other time liabilities	11,913,945	13,151,709
Financial derivative contracts	2,139,488	2,292,161
Issued debt instruments	709,365	7,326,372
Other financial liabilities	745,363	795,785
Santander Group Companies [Member]
Assets
Cash and deposits in banks	74,949	187,701	$ 23,578
Trading investments
Obligations under repurchase agreements Loans
Financial derivative contracts	545,028	742,851	771,774
Available for sale investments
Other assets	8,480	4,711	3,218
Liabilities
Deposits and other demand liabilities	24,776	6,988	9,987
Obligations under repurchase agreements Loans	50,945	56,167	12,006
Time deposits and other time liabilities	785,988	1,545,835	1,360,572
Financial derivative contracts	418,647	954,575	1,323,996
Issued debt instruments	482,626	484,548	398,565
Other financial liabilities	4,919	8,970	2,409
Other liabilities	164,303	446	376
Associates [member]
Assets
Cash and deposits in banks
Trading investments
Obligations under repurchase agreements Loans
Financial derivative contracts	86,011	33,433	24,773
Available for sale investments
Other assets	118,136	67,454	19,101
Liabilities
Deposits and other demand liabilities	25,805	7,141	8,535
Obligations under repurchase agreements Loans
Time deposits and other time liabilities	27,968	6,219	234
Financial derivative contracts	142,750	54,691	23,326
Issued debt instruments
Other financial liabilities
Other liabilities	58,168	44,329	19,541
Key management personnel of entity or parent [member]
Assets
Cash and deposits in banks
Trading investments
Obligations under repurchase agreements Loans
Financial derivative contracts
Available for sale investments
Other assets
Liabilities
Deposits and other demand liabilities	2,470	2,883	2,454
Obligations under repurchase agreements Loans
Time deposits and other time liabilities	3,703	2,365	2,728
Financial derivative contracts
Issued debt instruments
Other financial liabilities
Other liabilities
Other related parties [member]
Assets
Cash and deposits in banks
Trading investments
Obligations under repurchase agreements Loans
Financial derivative contracts
Available for sale investments
Other assets
Liabilities
Deposits and other demand liabilities	221	630	1,373
Obligations under repurchase agreements Loans
Time deposits and other time liabilities	3,504	1,984	898
Financial derivative contracts	7,190
Issued debt instruments
Other financial liabilities
Other liabilities

TRANSACTIONS WITH RELATED PA191

TRANSACTIONS WITH RELATED PARTIES (Details 3) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income (expense) recorded
Fee and commission income and expenses		$ 279,063	$ 254,424	$ 237,627
Other operating income and expenses		62,016	6,427	6,439
Santander Group Companies [Member]
Income (expense) recorded
Interest income and inflation-indexation adjustments		(43,892)	(39,279)	(10,986)
Fee and commission income and expenses		72,273	56,952	35,955
Net income (expense) from financial operations and net foreign exchange gain (loss) (*)	[1]	363,108	(343,963)	(321,985)
Other operating income and expenses		21,670	931	955
Administrative and other expenses		(48,246)	(35,554)	(30,591)
Total		364,913	(360,913)	(326,652)
Associates [member]
Income (expense) recorded
Interest income and inflation-indexation adjustments			40
Fee and commission income and expenses		15,404	22,322	77
Net income (expense) from financial operations and net foreign exchange gain (loss) (*)	[1]	(48,453)	(48,373)	(16,845)
Other operating income and expenses		(1,454)	(2,239)	(1,027)
Administrative and other expenses		(47,220)	(43,115)	(41,691)
Total		(81,723)	(71,365)	(59,486)
Key management personnel of entity or parent [member]
Income (expense) recorded
Interest income and inflation-indexation adjustments		1,051	1,164	1,664
Fee and commission income and expenses		224	204	208
Net income (expense) from financial operations and net foreign exchange gain (loss) (*)	[1]	(3)	(88)	15
Key personnel compensation and expenses		(43,037)	(37,328)	(39,323)
Total		(41,765)	(36,048)	(37,436)
Other related parties [member]
Income (expense) recorded
Interest income and inflation-indexation adjustments			115	116
Fee and commission income and expenses		1	20	39
Net income (expense) from financial operations and net foreign exchange gain (loss) (*)	[1]	19	2	6
Total		$ 20	$ 137	$ 161

[1]	Primarily relates to derivative contracts used to financially cover exchange risk of assets and liabilities that cover positions of the Bank and its subsidiaries.

TRANSACTIONS WITH RELATED PA192

TRANSACTIONS WITH RELATED PARTIES (Details 4) - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Transactions With Related Parties
Personnel compensation		$ 16,863	$ 17,493	$ 18,605
Board members' salaries and expenses		1,199	1,269	1,374
Bonuses or gratifications		16,057	14,404	12,861
Compensation in stock		1,923	331	66
Training expenses		68	161	122
Seniority compensation		3,842	2,619	4,154
Health funds		273	285	314
Other personnel expenses		773	916	1,396
Pension plans	[1]	2,039	(150)	431
Total		$ 43,037	$ 37,328	$ 39,323

[1]	Some of the executives that qualified for this benefit left the Group for different reasons, without complying with the requirements to receive the benefit, therefore the obligation amount decreased, which generated the reversal of provisions.

TRANSACTIONS WITH RELATED PA193

TRANSACTIONS WITH RELATED PARTIES (Details 5) - Executive	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of transactions between related parties [line items]
No. of executives	133	167	160
Director [Member]
Disclosure of transactions between related parties [line items]
No. of executives	11	13	12
Division Manager [Member]
Disclosure of transactions between related parties [line items]
No. of executives	13	17	16
Department Manager [Member]
Disclosure of transactions between related parties [line items]
No. of executives	63	76	79
Manager [Member]
Disclosure of transactions between related parties [line items]
No. of executives	46	61	53

PENSION PLANS (Details)

PENSION PLANS (Details) - Other post-employment benefit plans [Member]	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of defined benefit plans [line items]
Mortality chart	RV2014	RV-2014/CB-2014
Termination of contract rates	5.00%	5.00%
Impairment chart	PDT 1985	PDT 1985

PENSION PLANS (Details 1)

PENSION PLANS (Details 1) - Other post-employment benefit plans [Member] - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of defined benefit plans [line items]
Plan assets	$ 7,919	$ 6,612	$ 6,945	$ 6,495
Commitments for defined-benefit plans
For active personnel	(6,998)	(4,975)
Incurred by inactive personnel
Minus:
Unrealized actuarial (gain) losses
Balances at year end	$ 921	$ 1,637	$ 1,875

PENSION PLANS (Details 2)

PENSION PLANS (Details 2) - CLP ($) $ in Millions	12 Months Ended
PENSION PLANS (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
a) Fair value of plan assets
Expected yield of insurance contracts	$ (307)	$ (335)	$ (432)
b) Present value of obligations
Service cost	2,039	(150)	431
Interest cost
Past service cost
Actuarial (gain) losses
Other post-employment benefit plans [Member]
a) Fair value of plan assets
Opening balance	6,612	6,945	6,495
Expected yield of insurance contracts	307	335	432
Employer contributions	1,931	886	18
Actuarial (gain) losses
Premiums paid
Benefits paid	(931)	(1,554)
Fair value of plan assets at year end	7,919	6,612	6,945
b) Present value of obligations
Present value of obligations opening balance	(4,975)	(5,070)	(4,639)
Net incorporation of Group companies
Service cost	(2,039)	150	(431)
Interest cost
Curtailment/settlement effect
Benefits paid
Past service cost
Actuarial (gain) losses
Other	16	(55)
Present value of obligations at year end	(6,998)	(4,975)	(5,070)
Net balance at year end	$ 921	$ 1,637	$ 1,875

PENSION PLANS (Details 3)

PENSION PLANS (Details 3)	12 Months Ended
PENSION PLANS (Details 3)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Pension Plans
Type of expected yield from the plan's assets	UF + 2.50% annual	UF + 2.50% annual	UF + 2.50% annual
Type of yield expected from the reimbursement rights	UF + 2.50% annual	UF + 2.50% annual	UF + 2.50% annual

PENSION PLANS (Details 4)

PENSION PLANS (Details 4) - CLP ($) $ in Millions	12 Months Ended
PENSION PLANS (Details 4) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Pension Plans
Current period service expenses	$ 2,039	$ (150)	$ 431
Interest cost
Expected yield from plan's assets	(307)	(335)	(432)
Expected yield of insurance contracts linked to the Plan:
Extraordinary allocations
Actuarial (gain)/ losses recorded in the period
Past service cost
Other
Total	$ 1,732	$ (485)	$ (1)

FAIR VALUE OF FINANCIAL ASSE199

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details) - CLP ($) $ in Millions	Dec. 31, 2017		Dec. 31, 2016
Disclosure of financial assets [line items]
Assets	$ 35,823,605		$ 37,030,025
Liabilities	32,675,685		34,091,826
Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,768,166		7,539,315
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,488		2,292,161
Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313		480,926
Trading investments [Member]
Disclosure of financial assets [line items]
Assets	485,736		396,987
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Assets	2,238,647		2,500,782
Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Assets	27,563,229	[1]	26,933,624	[2]
Available for sale investments [Member]
Disclosure of financial assets [line items]
Assets	2,574,546		3,388,906
Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Assets	323,767		396,289
Book Value [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	21,380,468		22,607,392
Book Value [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,488		2,292,161
Book Value [Member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,335,683		7,566,388
Book Value [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313		480,926
Book Value [Member] \| Trading investments [Member]
Disclosure of financial assets [line items]
Assets	485,736		396,987
Book Value [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Assets	2,238,647		2,500,782
Book Value [Member] \| Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Assets	26,934,757		26,415,826
Book Value [Member] \| Available for sale investments [Member]
Disclosure of financial assets [line items]
Assets	2,574,546		3,388,906
Book Value [Member] \| Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Assets	323,767		396,289
At fair value [member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	20,887,959		22,833,009
At fair value [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,488		2,292,161
At fair value [member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,487,591		8,180,322
At fair value [member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313		480,926
At fair value [member] \| Trading investments [Member]
Disclosure of financial assets [line items]
Assets	485,736		396,987
At fair value [member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Assets	2,238,647		2,500,782
At fair value [member] \| Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Assets	28,518,929		29,976,931
At fair value [member] \| Available for sale investments [Member]
Disclosure of financial assets [line items]
Assets	2,574,546		3,388,906
At fair value [member] \| Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Assets	$ 323,767		$ 396,289

[1]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million.
[2]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 429,442 million, Mortgage loans Ch$ 57,009 million, and Consumer loans Ch$ 300,019 million.

FAIR VALUE OF FINANCIAL ASSE200

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 1) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of financial assets [line items]
Assets	$ 35,823,605	$ 37,030,025
Liabilities	32,675,685	34,091,826
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,488	2,292,161
Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313	480,926
Level 3 [Member]
Disclosure of financial assets [line items]
Assets	62,134	79,181	$ 39,913
Liabilities	7	43
Trading investments [Member]
Disclosure of financial assets [line items]
Assets	485,736	396,987
Available for sale investments [Member]
Disclosure of financial assets [line items]
Assets	2,574,546	3,388,906
Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Assets	2,238,647	2,500,782
Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Assets	323,767	396,289
Recurrent Basis [Member]
Disclosure of financial assets [line items]
Assets	5,622,696	6,682,964
Liabilities	2,547,801	2,773,087
Recurrent Basis [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,488	2,292,161
Recurrent Basis [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313	480,926
Recurrent Basis [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets	3,354,635	3,263,739
Liabilities	408,313	480,926
Recurrent Basis [Member] \| Level 1 [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities
Recurrent Basis [Member] \| Level 1 [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities	408,313	480,926
Recurrent Basis [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets	2,245,074	3,379,191
Liabilities	2,139,481	2,292,118
Recurrent Basis [Member] \| Level 2 [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	2,139,481	2,292,118
Recurrent Basis [Member] \| Level 2 [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities
Recurrent Basis [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets	22,987	40,034
Liabilities	7	43
Recurrent Basis [Member] \| Level 3 [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Liabilities	7	43
Recurrent Basis [Member] \| Level 3 [Member] \| Guarantees received (margin accounts) [Member]
Disclosure of financial assets [line items]
Liabilities
Recurrent Basis [Member] \| Trading investments [Member]
Disclosure of financial assets [line items]
Assets	485,736	396,987
Recurrent Basis [Member] \| Trading investments [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets	481,642	396,011
Recurrent Basis [Member] \| Trading investments [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets	4,094	976
Recurrent Basis [Member] \| Trading investments [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets
Recurrent Basis [Member] \| Available for sale investments [Member]
Disclosure of financial assets [line items]
Assets	2,574,546	3,388,906
Recurrent Basis [Member] \| Available for sale investments [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets	2,549,226	2,471,439
Recurrent Basis [Member] \| Available for sale investments [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets	24,674	916,808
Recurrent Basis [Member] \| Available for sale investments [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets	646	659
Recurrent Basis [Member] \| Financial derivative contracts [Member]
Disclosure of financial assets [line items]
Assets	2,238,647	2,500,782
Recurrent Basis [Member] \| Financial derivative contracts [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets
Recurrent Basis [Member] \| Financial derivative contracts [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets	2,216,306	2,461,407
Recurrent Basis [Member] \| Financial derivative contracts [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets	22,341	39,375
Recurrent Basis [Member] \| Guarantee Deposits (Margin Accounts) [Member]
Disclosure of financial assets [line items]
Assets	323,767	396,289
Recurrent Basis [Member] \| Guarantee Deposits (Margin Accounts) [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets	323,767	396,289
Recurrent Basis [Member] \| Guarantee Deposits (Margin Accounts) [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets
Recurrent Basis [Member] \| Guarantee Deposits (Margin Accounts) [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets

FAIR VALUE OF FINANCIAL ASSE201

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 2) - CLP ($) $ in Millions	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Disclosure of financial assets [line items]
Assets	$ 35,823,605		$ 37,030,025
Liabilities	32,675,685		34,091,826
Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,768,166		7,539,315
Level 3 [Member]
Disclosure of financial assets [line items]
Assets	62,134		79,181		$ 39,913
Liabilities	7		43
Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Assets	27,563,229	[1]	26,933,624	[2]
Not Measured At Fair Value [Member]
Disclosure of financial assets [line items]
Assets	28,518,929		29,976,931
Liabilities	28,375,550		31,013,331
Not Measured At Fair Value [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	20,887,959		22,833,009
Not Measured At Fair Value [Member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,487,591		8,180,322
Not Measured At Fair Value [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets
Liabilities
Not Measured At Fair Value [Member] \| Level 1 [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities
Not Measured At Fair Value [Member] \| Level 1 [Member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities
Not Measured At Fair Value [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets
Liabilities	28,375,550		31,013,331
Not Measured At Fair Value [Member] \| Level 2 [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	20,887,959		22,833,009
Not Measured At Fair Value [Member] \| Level 2 [Member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities	7,487,591		8,180,322
Not Measured At Fair Value [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets	28,518,929		29,976,931
Liabilities
Not Measured At Fair Value [Member] \| Level 3 [Member] \| Deposits and other demand liabilities [Member]
Disclosure of financial assets [line items]
Liabilities
Not Measured At Fair Value [Member] \| Level 3 [Member] \| Issued Debt Instruments And Other Financial Liabilities [Member]
Disclosure of financial assets [line items]
Liabilities
Not Measured At Fair Value [Member] \| Loans and accounts receivables from customers [Member]
Disclosure of financial assets [line items]
Assets	28,518,929		29,976,931
Not Measured At Fair Value [Member] \| Loans and accounts receivables from customers [Member] \| Level 1 [Member]
Disclosure of financial assets [line items]
Assets
Not Measured At Fair Value [Member] \| Loans and accounts receivables from customers [Member] \| Level 2 [Member]
Disclosure of financial assets [line items]
Assets
Not Measured At Fair Value [Member] \| Loans and accounts receivables from customers [Member] \| Level 3 [Member]
Disclosure of financial assets [line items]
Assets	$ 28,518,929		$ 29,976,931

[1]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million.
[2]	Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 429,442 million, Mortgage loans Ch$ 57,009 million, and Consumer loans Ch$ 300,019 million.

FAIR VALUE OF FINANCIAL ASSE202

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 3) - Level 3 [Member] - CLP ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Financial derivative contracts [Member] \| Present Value Method [Member]
Disclosure of financial assets [line items]
Main unobservabe inputs	[1]	Curves on TAB indices	Curves on TAB indices
Impact Sens. -1bp Unfavourable scenario		$ (1.3)	$ (12.3)
Impact Sens. +1bp Favourable scenario		$ 1.3	$ 12.3
Available for sale investments [Member] \| Internal Rate Of Return Method [Member]
Disclosure of financial assets [line items]
Main unobservabe inputs	[2]	BR UF	BR UF

[1]	TAB: "Tasa Activa Bancaria" (Active Bank Rate). Average interest rates on 30, 90, 180 and 360 day deposits published by the Chilean Association of Banks and Financial Institutions (ABIF) in nominal currency (Chilean peso) and in real terms, adjusted for inflation (in Chilean unit of account (Unidad de Fomento - UF)).
[2]	BR: "Bonos de Reconocimiento" (Recognition Bonds). The Recognition Bond is an instrument of money provided by the State of Chile to workers who joined the new pension system, which began operating since 1981.

FAIR VALUE OF FINANCIAL ASSE203

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 4) - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]
As of January 1, 2017	$ 37,030,025
Total realized and unrealized profits (losses)
As of December 31, 2017	35,823,605	$ 37,030,025
Reconciliation of Changes in Fair Value Measurement, Liabilities [Roll Forward]
As of January 1, 2017	34,091,826
Total realized and unrealized profits (losses)
As of December 31, 2017	32,675,685	34,091,826
Level 3 [Member]
Disclosure of fair value measurement of assets [line items]
As of January 1, 2017	79,181	39,913
Total realized and unrealized profits (losses)
Included in statement of income	(17,035)	39,376
Included in other comprehensive income	(12)	(108)
Purchases, issuances, and loans (net)
As of December 31, 2017	62,134	79,181
Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016	(17,047)	39,268
Reconciliation of Changes in Fair Value Measurement, Liabilities [Roll Forward]
As of January 1, 2017	43
Total realized and unrealized profits (losses)
Included in statement of income	(36)	43
Included in other comprehensive income
Purchases, issuances, and loans (net)
As of December 31, 2017	7	43
Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016	$ (36)	$ 43

FAIR VALUE OF FINANCIAL ASSE204

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 5) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Gross amounts	$ 2,029,657	$ 2,244,467
Compensated in balance
Net amount presented in balance	2,029,657	2,244,467
Remains of unrelated and / or unencumbered financial instruments	27,143,747	26,678,877
Amount in Statements of Financial Position	29,173,404	28,923,344
Liabilities
Gross amounts	2,195,715	2,313,392
Compensated in balance
Net amount presented in balance	2,195,715	2,313,392
Remains of unrelated and / or unencumbered financial instruments	21,592,301	22,798,598
Amount in Statements of Financial Position	23,788,016	25,111,990
Financial derivative contracts [Member]
Assets
Gross amounts
Compensated in balance
Net amount presented in balance
Remains of unrelated and / or unencumbered financial instruments
Amount in Statements of Financial Position
Liabilities
Gross amounts	1,927,654	2,100,955
Compensated in balance
Net amount presented in balance	1,927,654	2,100,955
Remains of unrelated and / or unencumbered financial instruments	211,834	191,206
Amount in Statements of Financial Position	2,139,488	2,292,161
Investments Under Resale Agreements [Member]
Liabilities
Gross amounts	268,061	212,437
Compensated in balance
Net amount presented in balance	268,061	212,437
Remains of unrelated and / or unencumbered financial instruments
Amount in Statements of Financial Position	268,061	212,437
Deposits and other demand liabilities [Member]
Liabilities
Gross amounts
Compensated in balance
Net amount presented in balance
Remains of unrelated and / or unencumbered financial instruments	21,380,467	22,607,392
Amount in Statements of Financial Position	21,380,467	22,607,392
Financial derivative contracts [Member]
Assets
Gross amounts	2,029,657	2,237,731
Compensated in balance
Net amount presented in balance	2,029,657	2,237,731
Remains of unrelated and / or unencumbered financial instruments	208,990	263,051
Amount in Statements of Financial Position	2,238,647	2,500,782
Loans and accounts receivables from customers [Member]
Assets
Gross amounts
Compensated in balance
Net amount presented in balance
Remains of unrelated and / or unencumbered financial instruments	26,934,757	26,415,826
Amount in Statements of Financial Position	$ 26,934,757	26,415,826
Investments Under Resale Agreements [Member]
Assets
Gross amounts		6,736
Compensated in balance
Net amount presented in balance		6,736
Remains of unrelated and / or unencumbered financial instruments
Amount in Statements of Financial Position		$ 6,736

FAIR VALUE OF FINANCIAL ASSE205

FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 6) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Assets	$ 2,238,647	$ 2,500,782
Liability	2,139,488	2,292,161
Financial Liabilities Derivative Contracts With Collateral Agreement Threshold Equal To Zero [Member]
Disclosure of financial assets [line items]
Liability	1,773,471	1,986,345
Financial Liabilities Derivative Contracts With Non-Zero Threshold Collateral Agreement [Member]
Disclosure of financial assets [line items]
Liability	316,840	238,450
Financial Liabilities Derivative Contracts Without Collateral Agreement [Member]
Disclosure of financial assets [line items]
Liability	49,177	67,366
Financial Assets Derivative Contracts With Collateral Agreement Threshold Equal To Zero
Disclosure of financial assets [line items]
Assets	1,898,220	2,134,917
Financial Assets Derivative Contracts With Non-Zero Threshold Collateral Agreement
Disclosure of financial assets [line items]
Assets	221,030	233,945
Financial Assets Derivative Contracts Without Collateral Agreement
Disclosure of financial assets [line items]
Assets	$ 119,397	$ 131,920

RISK MANAGEMENT (Details)

RISK MANAGEMENT (Details) - Credit Risk [Member] - Consumer Loans [Member]	12 Months Ended
	Dec. 31, 2017
Performing Loan [Member] \| New Client [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.53%	[1]
Performing Loan [Member] \| New Client [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	19.75%	[1]
Performing Loan [Member] \| Existing Clients [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.05%	[1]
Performing Loan [Member] \| Existing Clients [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	11.92%	[1]
Performing Loan [Member] \| Banefe [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.13%
Performing Loan [Member] \| Banefe [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	18.67%
Renegotiated Consumer Loans [Member] \| Existing Clients [Member] \| Bottom of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	41.50%	[1],[2]
Renegotiated Consumer Loans [Member] \| Existing Clients [Member] \| Top of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	30.40%	[1],[2]
Renegotiated Consumer Loans [Member] \| Existing Clients [Member] \| Top of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	100.00%	[1],[2]
Renegotiated Consumer Loans [Member] \| Banefe [Member] \| Bottom of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	51.11%
Renegotiated Consumer Loans [Member] \| Banefe [Member] \| Top of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	43.71%
Renegotiated Consumer Loans [Member] \| Banefe [Member] \| Top of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	100.00%
Non-Performing Loan [Member] \| 90-120 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	41.50%	[1]
Non-Performing Loan [Member] \| 120-150 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	60.15%	[1]
Non-Performing Loan [Member] \| 150-180 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	78.50%	[1]
Non-Performing Loan [Member] \| New Client [Member] \| 90-120 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	31.78%	[1]
Non-Performing Loan [Member] \| New Client [Member] \| 120-150 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	51.17%	[1]
Non-Performing Loan [Member] \| New Client [Member] \| 150-180 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	59.98%	[1]
Non-Performing Loan [Member] \| New Client [Member] \| >180 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Description of allowance for loan loss rate	Charged-off
Non-Performing Loan [Member] \| Existing Clients [Member] \| 90-120 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	31.78%	[1]
Non-Performing Loan [Member] \| Existing Clients [Member] \| 120-150 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	51.17%	[1]
Non-Performing Loan [Member] \| Existing Clients [Member] \| 150-180 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	59.98%	[1]
Non-Performing Loan [Member] \| Banefe [Member] \| 90-120 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	51.11%
Non-Performing Loan [Member] \| Banefe [Member] \| 120-150 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	66.65%
Non-Performing Loan [Member] \| Banefe [Member] \| 150-180 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	78.50%
Renegotiated Consumer Loans [Member] \| Existing Clients [Member] \| Bottom of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	3.66%	[1],[2]
Renegotiated Consumer Loans [Member] \| Banefe [Member] \| Bottom of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	10.19%

[1]	Percentage of loans outstanding
[2]	This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.

RISK MANAGEMENT (Details 1)

RISK MANAGEMENT (Details 1) - Credit Risk [Member] - Commerical Loans [Member]	Dec. 31, 2017
Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.87%	[1]
Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	15.70%	[1]
Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.03%	[1]
Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	3.89%	[1]
Performing Loan [Member] \| Small Enterprise [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.21%	[1]
Performing Loan [Member] \| Small Enterprise [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	21.82%	[1]
Performing Loan [Member] \| Mid-sized Enterprise [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.14%	[1]
Performing Loan [Member] \| Mid-sized Enterprise [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	7.31%	[1]
Renegotiated Consumer Loans [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	5.22%	[1]
Renegotiated Consumer Loans [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	19.54%	[1]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	41.69%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	67.31%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	75.69%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	83.82%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| Bottom of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	2.93%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| Top of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	20.65%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	12.15%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	23.42%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	34.65%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	46.25%	[1],[2]
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| Bottom of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	1.17%
Renegotiated Consumer Loans [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| Top of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	8.25%
Renegotiated Consumer Loans [Member] \| Small Enterprise [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	30.95%	[1],[2]
Renegotiated Consumer Loans [Member] \| Small Enterprise [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	64.47%	[1],[2]
Renegotiated Consumer Loans [Member] \| Small Enterprise [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	70.15%	[1],[2]
Renegotiated Consumer Loans [Member] \| Small Enterprise [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	74.53%	[1],[2]
Renegotiated Consumer Loans [Member] \| Mid-sized Enterprise [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	18.93%	[1],[2]
Renegotiated Consumer Loans [Member] \| Mid-sized Enterprise [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	51.86%	[1],[2]
Renegotiated Consumer Loans [Member] \| Mid-sized Enterprise [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	63.12%	[1],[2]
Renegotiated Consumer Loans [Member] \| Mid-sized Enterprise [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	72.87%	[1],[2]
Non-Performing Loan [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	18.93%	[1]
Non-Performing Loan [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	51.86%	[1]
Non-Performing Loan [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	63.12%	[1]
Non-Performing Loan [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate previously	72.87%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	41.69%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	67.31%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	75.69%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Out Mortgage Collateral [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	83.82%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	12.15%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	23.42%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	34.65%	[1]
Non-Performing Loan [Member] \| Commercial Loan to Individuals With Mortgage Collateral [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	46.25%	[1]
Non-Performing Loan [Member] \| Small Enterprise [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	30.95%	[1]
Non-Performing Loan [Member] \| Small Enterprise [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	64.47%	[1]
Non-Performing Loan [Member] \| Small Enterprise [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	70.15%	[1]
Non-Performing Loan [Member] \| Small Enterprise [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	74.53%	[1]
Non-Performing Loan [Member] \| Mid-sized Enterprise [Member] \| 90-179 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	18.93%	[1]
Non-Performing Loan [Member] \| Mid-sized Enterprise [Member] \| 180-359 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	51.86%	[1]
Non-Performing Loan [Member] \| Mid-sized Enterprise [Member] \| 360-719 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	63.12%	[1]
Non-Performing Loan [Member] \| Mid-sized Enterprise [Member] \| >720 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	72.87%	[1]

[1]	Percentage of loans outstanding
[2]	This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.

RISK MANAGEMENT (Details 2)

RISK MANAGEMENT (Details 2) - Credit Risk [Member] - Residential Mortgage Loans [Member]	Dec. 31, 2017	[1]
Performing Loan [Member] \| Bank (excl. Select) [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.00%
Performing Loan [Member] \| Bank (excl. Select) [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	5.18%
Performing Loan [Member] \| Santander Select [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.00%
Performing Loan [Member] \| Santander Select [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	3.88%
Renegotiated Consumer Loans [Member] \| Bottom of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	0.16%	[2]
Renegotiated Consumer Loans [Member] \| Bottom of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	5.58%	[2]
Renegotiated Consumer Loans [Member] \| Top of Range [Member] \| Less Than 90 Days [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	8.37%	[2]
Renegotiated Consumer Loans [Member] \| Top of Range [Member] \| Up to 3 Months [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	26.25%	[2]
Non-Performing Loan [Member] \| 0-60 [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	5.58%
Non-Performing Loan [Member] \| 60-80 [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	8.48%
Non-Performing Loan [Member] \| 80-90 [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	11.93%
Non-Performing Loan [Member] \| >90 [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage of allowance for loan loss rate	16.25%

[1]	Percentage of loans outstanding
[2]	This category relates only to loans which were renegotiated and were less than 90 days past due at the time of renegotiation, migrating from such category as they reached 90 days past due since renegotiation.

RISK MANAGEMENT (Details 3)

RISK MANAGEMENT (Details 3) - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 1,440	$ 7,558
Credit Risk [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 791,157	$ 790,605
Allowance percentage %	100.00%	100.00%
Credit Risk [Member] \| Group [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 27,725,914	$ 27,206,431
Financial assets percentage %	100.00%	100.00%
Credit Risk [Member] \| Commerical Loans [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 219,262
Financial assets percentage %	27.73%
Allowance	$ 219,073	$ 250,471
Allowance percentage %	27.69%	31.69%
Credit Risk [Member] \| Commerical Loans [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 58,728	$ 58,453
Allowance percentage %	7.42%	7.39%
Credit Risk [Member] \| Commerical Loans [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 160,345	$ 124,653
Allowance percentage %	20.27%	15.76%
Credit Risk [Member] \| Commerical Loans [Member] \| A1 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 827	$ 923
Allowance percentage %	0.10%	0.12%
Credit Risk [Member] \| Commerical Loans [Member] \| A2 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 18,514	$ 23,757
Allowance percentage %	2.34%	3.00%
Credit Risk [Member] \| Commerical Loans [Member] \| A3 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 27,894	$ 29,668
Allowance percentage %	3.53%	3.75%
Credit Risk [Member] \| Commerical Loans [Member] \| B [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 32,089	$ 40,545
Allowance percentage %	4.06%	5.13%
Credit Risk [Member] \| Commerical Loans [Member] \| C1 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 2,604	$ 2,176
Allowance percentage %	0.33%	0.28%
Credit Risk [Member] \| Commerical Loans [Member] \| C2 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 5,104	$ 4,555
Allowance percentage %	0.65%	0.58%
Credit Risk [Member] \| Commerical Loans [Member] \| C3 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 8,935	$ 11,136
Allowance percentage %	1.13%	1.41%
Credit Risk [Member] \| Commerical Loans [Member] \| C4 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 19,120	$ 22,894
Allowance percentage %	2.42%	2.90%
Credit Risk [Member] \| Commerical Loans [Member] \| D1 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 41,941	$ 42,625
Allowance percentage %	5.30%	5.39%
Credit Risk [Member] \| Commerical Loans [Member] \| D2 [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 62,234	$ 72,192
Allowance percentage %	7.87%	9.13%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 10,168,164	$ 11,057,282
Financial assets percentage %	36.67%	40.65%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| A1 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 1,051,072	$ 1,599,311
Financial assets percentage %	3.79%	5.88%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| A2 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 5,957,305	$ 6,437,930
Financial assets percentage %	21.49%	23.67%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| A3 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 2,176,779	$ 2,030,867
Financial assets percentage %	7.85%	7.46%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| B [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 539,074	$ 538,909
Financial assets percentage %	1.94%	1.98%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| C1 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 145,033	$ 121,893
Financial assets percentage %	0.52%	0.45%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| C2 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 56,871	$ 51,034
Financial assets percentage %	0.21%	0.19%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| C3 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 39,825	$ 49,901
Financial assets percentage %	0.14%	0.18%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| C4 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 53,261	$ 64,118
Financial assets percentage %	0.19%	0.24%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| D1 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 71,896	$ 73,462
Financial assets percentage %	0.26%	0.27%
Credit Risk [Member] \| Commerical Loans [Member] \| Individual [Member] \| D2 [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 77,048	$ 89,857
Financial assets percentage %	0.28%	0.33%
Credit Risk [Member] \| Commerical Loans [Member] \| Group [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 3,903,163	$ 3,082,990
Financial assets percentage %	14.08%	11.33%
Credit Risk [Member] \| Commerical Loans [Member] \| Group [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 3,488,633	$ 2,741,858
Financial assets percentage %	12.58%	10.08%
Credit Risk [Member] \| Commerical Loans [Member] \| Group [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 414,530	$ 341,132
Financial assets percentage %	1.50%	1.25%
Credit Risk [Member] \| Residential Mortgage Loans [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 69,066	$ 57,009
Allowance percentage %	8.72%	7.21%
Credit Risk [Member] \| Residential Mortgage Loans [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 20,174	$ 23,699
Allowance percentage %	2.55%	3.00%
Credit Risk [Member] \| Residential Mortgage Loans [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 48,892	$ 33,310
Allowance percentage %	6.17%	4.21%
Credit Risk [Member] \| Residential Mortgage Loans [Member] \| Group [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 9,096,895	$ 8,619,354
Financial assets percentage %	32.81%	31.68%
Credit Risk [Member] \| Residential Mortgage Loans [Member] \| Group [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 8,634,351	$ 8,221,666
Financial assets percentage %	31.14%	30.22%
Credit Risk [Member] \| Residential Mortgage Loans [Member] \| Group [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 462,544	$ 397,688
Financial assets percentage %	1.67%	1.46%
Credit Risk [Member] \| Consumer Loans [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 283,756	$ 300,019
Allowance percentage %	35.86%	37.95%
Credit Risk [Member] \| Consumer Loans [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 114,099	$ 147,979
Allowance percentage %	14.42%	18.72%
Credit Risk [Member] \| Consumer Loans [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Allowance	$ 169,657	$ 152,040
Allowance percentage %	21.44%	19.23%
Credit Risk [Member] \| Consumer Loans [Member] \| Group [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 4,557,692	$ 4,446,805
Financial assets percentage %	16.44%	16.34%
Credit Risk [Member] \| Consumer Loans [Member] \| Group [Member] \| Normal Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 4,230,567	$ 4,158,221
Financial assets percentage %	15.26%	15.28%
Credit Risk [Member] \| Consumer Loans [Member] \| Group [Member] \| Impaired Portfolio [Member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	$ 327,125	$ 288,584
Financial assets percentage %	1.18%	1.06%

RISK MANAGEMENT (Details 4)

RISK MANAGEMENT (Details 4) - Credit Risk [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about financial instruments [line items]
Total	$ 44,320,140	$ 44,816,823
Deposits In Banks [Member]
Disclosure of detailed information about financial instruments [line items]
Total	839,561	1,709,071
Cash Items In Process Of Collection [Member]
Disclosure of detailed information about financial instruments [line items]
Total	668,145	495,283
Trading Investments [Member]
Disclosure of detailed information about financial instruments [line items]
Total	485,736	396,987
Investments Under Resale Agreements [Member]
Disclosure of detailed information about financial instruments [line items]
Total		6,736
Financial Derivative Contracts [Member]
Disclosure of detailed information about financial instruments [line items]
Total	2,238,647	2,500,782
Loans And Accounts Receivable From Customers And Interbank Loans, Net [Member]
Disclosure of detailed information about financial instruments [line items]
Total	26,934,757	26,415,826
Available For Sale Investments [Member]
Disclosure of detailed information about financial instruments [line items]
Total	2,574,546	3,388,906
Letters Of Credit Issued [Member]
Disclosure of detailed information about financial instruments [line items]
Total	201,699	158,800
Foreign Letters Of Credit Confirmed [Member]
Disclosure of detailed information about financial instruments [line items]
Total	75,499	57,686
Guarantees [member]
Disclosure of detailed information about financial instruments [line items]
Total	1,823,793	1,752,610
Available Credit Lines [Member]
Disclosure of detailed information about financial instruments [line items]
Total	8,135,489	7,548,820
Personal Guarantees [Member]
Disclosure of detailed information about financial instruments [line items]
Total	81,577	125,050
Other Irrevocable Credit Commitments [Member]
Disclosure of detailed information about financial instruments [line items]
Total	$ 260,691	$ 260,266

RISK MANAGEMENT (Details 5)

RISK MANAGEMENT (Details 5) - USD $ in Thousands	12 Months Ended
RISK MANAGEMENT (Details 5) - USD $ in Thousands	Dec. 31, 2017USD ($)
Disclosure of detailed information about financial instruments [line items]
Derivative Instruments (adjusted to market)	$ 4,010
Deposits	2,390
Loans	254,590
Financial investments
Total Exposure	$ 260,990
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Bolivia
Disclosure of detailed information about financial instruments [line items]
Classification	3
Derivative Instruments (adjusted to market)
Deposits
Loans	60
Financial investments
Total Exposure	$ 60
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| China
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)
Deposits
Loans	243,950
Financial investments
Total Exposure	$ 243,950
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Italia
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)
Deposits	2,380
Loans	780
Financial investments
Total Exposure	$ 3,160
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Mexico
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)
Deposits	10
Loans
Financial investments
Total Exposure	$ 10
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Panama
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)	$ 630
Deposits
Loans
Financial investments
Total Exposure	$ 630
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Peru
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)	$ 3,380
Deposits
Loans
Financial investments
Total Exposure	$ 3,380
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Tailandia
Disclosure of detailed information about financial instruments [line items]
Classification	2
Derivative Instruments (adjusted to market)
Deposits
Loans	310
Financial investments
Total Exposure	$ 310
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Turquia
Disclosure of detailed information about financial instruments [line items]
Classification	3
Derivative Instruments (adjusted to market)
Deposits
Loans	9,490
Financial investments
Total Exposure	$ 9,490

RISK MANAGEMENT (Details 6)

RISK MANAGEMENT (Details 6) - USD $ in Thousands	12 Months Ended
RISK MANAGEMENT (Details 6) - USD $ in Thousands	Dec. 31, 2017USD ($)
Disclosure of detailed information about financial instruments [line items]
Derivative Instruments (adjusted to market)	$ 4,010
Deposits	2,390
Loans	254,590
Financial investments
Total Exposure	$ 260,990
Credit Risk [Member] \| Foreign Derivative Contracts [Member] \| Banco Santander Spain [Member] \| Spain
Disclosure of detailed information about financial instruments [line items]
Classification	1
Derivative Instruments (adjusted to market)	$ 9,740
Deposits	118,260
Loans
Financial investments
Total Exposure	$ 128,000

RISK MANAGEMENT (Details 7)

RISK MANAGEMENT (Details 7) - Credit Risk [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total	$ 21,770,452	$ 20,075,307
Normal Portfolio [Member] \| Properties/Mortgages [Member]
Disclosure of financial assets [line items]
Total	19,508,151	17,560,550
Normal Portfolio [Member] \| Investments & Others [Member]
Disclosure of financial assets [line items]
Total	2,108,962	2,326,396
Impaired Portfolio [Member] \| Properties/Mortgages [Member]
Disclosure of financial assets [line items]
Total	152,252	186,297
Impaired Portfolio [Member] \| Investments & Others [Member]
Disclosure of financial assets [line items]
Total	$ 1,087	$ 2,064

RISK MANAGEMENT (Details 8)

RISK MANAGEMENT (Details 8) - Liquidity Risk [Member] - CLP ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Total liquidity portfolio		$ 3,522,919	$ 4,931,466
Trading investments [Member]
Disclosure of financial assets [line items]
Total liquidity portfolio		485,736	396,987
Available for sale investments [Member]
Disclosure of financial assets [line items]
Total liquidity portfolio		2,574,546	3,388,906
Encumbered Assets (Net) [Member]
Disclosure of financial assets [line items]
Total liquidity portfolio	[1]	(268,330)	(205,703)
Net Cash [Member]
Disclosure of financial assets [line items]
Total liquidity portfolio	[2]	(37,628)	16,259
Net Interbank Deposits [Member]
Disclosure of financial assets [line items]
Total liquidity portfolio	[3]	$ 768,595	$ 1,335,017

[1]	Assets encumbered through repurchase agreements are deducted from the liquidity portfolio.
[2]	Cash minus reserve requirements. As is presented in Note 4 the reserve requirements are established by the monthly average reserves that the Bank must maintain in accordance with regulation governing minimum reserves.
[3]	Includes overnight deposits in Central Bank, domestic banks and foreign banks.

RISK MANAGEMENT (Details 9)

RISK MANAGEMENT (Details 9) - Liquidity Risk [Member]	Dec. 31, 2017	Dec. 31, 2016
30 days foreign currency [Member]
Disclosure of risk management strategy related to hedge accounting [line items]
Percentages of exposure to liquidity risk	(22.00%)	21.00%
Not later than one month [member]
Disclosure of risk management strategy related to hedge accounting [line items]
Percentages of exposure to liquidity risk	(48.00%)	(15.00%)
90 Days [Member]
Disclosure of risk management strategy related to hedge accounting [line items]
Percentages of exposure to liquidity risk	(51.00%)	(37.00%)

RISK MANAGEMENT (Details 10)

RISK MANAGEMENT (Details 10) - Liquidity Risk [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Obligations under repurchase agreements [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	$ 268,061	$ 212,437
Obligations under repurchase agreements [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	268,061	212,437
Obligations under repurchase agreements [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	268,061	212,437
Obligations under repurchase agreements [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Obligations under repurchase agreements [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Checking Accounts, Time Deposits & Other Time Liabilities [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	20,168,837	20,979,497
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	8,376,371	7,949,315
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	5,120,171	6,105,767
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,299,018	2,537,299
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,201,271	4,193,906
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	19,996,831	20,786,287
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	106,833	118,101
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,811	13,913
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	62,362	61,196
Checking Accounts, Time Deposits & Other Time Liabilities [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	172,006	193,210
Financial Derivatives Contracts [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,139,488	2,292,161
Financial Derivatives Contracts [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Financial Derivatives Contracts [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	144,410	92,335
Financial Derivatives Contracts [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	356,288	263,893
Financial Derivatives Contracts [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	196,444	122,565
Financial Derivatives Contracts [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	697,142	478,793
Financial Derivatives Contracts [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	378,582	494,539
Financial Derivatives Contracts [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	358,358	346,948
Financial Derivatives Contracts [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	705,406	971,881
Financial Derivatives Contracts [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,442,346	1,813,368
Interbank Borrowings [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,698,357	1,916,368
Interbank Borrowings [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,130	4,557
Interbank Borrowings [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	46,013	373,423
Interbank Borrowings [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,030,241	1,154,063
Interbank Borrowings [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	397,419	115,769
Interbank Borrowings [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,477,803	1,647,812
Interbank Borrowings [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	220,554	233,542
Interbank Borrowings [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities		35,014
Interbank Borrowings [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Interbank Borrowings [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	220,554	268,556
Issue debt instruments [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	7,093,653	7,326,372
Issue debt instruments [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities
Issue debt instruments [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	21,043	43,141
Issue debt instruments [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	274,239	922,705
Issue debt instruments [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	55,119	185,425
Issue debt instruments [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	350,401	1,151,271
Issue debt instruments [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,727,571	1,168,117
Issue debt instruments [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,104,771	1,444,593
Issue debt instruments [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,910,910	3,562,391
Issue debt instruments [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	6,743,252	6,175,101
Other financial liabilities [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	242,030	240,016
Other financial liabilities [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	177,663	153,049
Other financial liabilities [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	701	1,461
Other financial liabilities [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	31,879	2,817
Other financial liabilities [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,583	1,161
Other financial liabilities [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	212,826	158,488
Other financial liabilities [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	27,581	58,641
Other financial liabilities [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	404	7,766
Other financial liabilities [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,219	15,121
Other financial liabilities [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	29,204	81,528
Total Financial Liabilities Before Interest Payment [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	31,610,426	32,966,851
Total Financial Liabilities Before Interest Payment [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	8,558,164	8,106,921
Total Financial Liabilities Before Interest Payment [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	5,600,399	6,828,564
Total Financial Liabilities Before Interest Payment [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	3,991,665	4,880,777
Total Financial Liabilities Before Interest Payment [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,852,836	4,618,826
Total Financial Liabilities Before Interest Payment [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	23,003,064	24,435,088
Total Financial Liabilities Before Interest Payment [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,461,121	2,072,940
Total Financial Liabilities Before Interest Payment [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,466,344	1,848,234
Total Financial Liabilities Before Interest Payment [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	3,679,897	4,610,589
Total Financial Liabilities Before Interest Payment [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	8,607,362	8,531,763
Contractual Interest Payments [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	3,363,077	3,517,450
Contractual Interest Payments [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,403	2,273
Contractual Interest Payments [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	45,465	56,121
Contractual Interest Payments [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	462,579	537,941
Contractual Interest Payments [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	117,779	170,861
Contractual Interest Payments [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	630,226	767,196
Contractual Interest Payments [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	808,502	1,762,884
Contractual Interest Payments [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	776,796
Contractual Interest Payments [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	1,147,553	987,370
Contractual Interest Payments [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	2,732,851	2,750,254
Total Financial Liabilities After Interest Payment [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	34,973,503	36,484,301
Total Financial Liabilities After Interest Payment [Member] \| Demand [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	8,562,567	8,109,194
Total Financial Liabilities After Interest Payment [Member] \| Not later than one month [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	5,645,864	6,884,685
Total Financial Liabilities After Interest Payment [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,454,244	5,418,718
Total Financial Liabilities After Interest Payment [Member] \| Later than one month and not later than three months [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,970,615	4,789,687
Total Financial Liabilities After Interest Payment [Member] \| Due within 1 year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	23,633,290	25,202,284
Total Financial Liabilities After Interest Payment [Member] \| Later than one year and not later than three years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	3,269,623	3,835,824
Total Financial Liabilities After Interest Payment [Member] \| Later than three years and not later than five years [member]
Disclosure of financial liabilities [line items]
Financial Liabilities	3,243,140	1,848,234
Total Financial Liabilities After Interest Payment [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	4,827,450	5,597,959
Total Financial Liabilities After Interest Payment [Member] \| More than 1 Year [Member]
Disclosure of financial liabilities [line items]
Financial Liabilities	$ 11,340,213	$ 11,282,017

RISK MANAGEMENT (Details 11)

RISK MANAGEMENT (Details 11) - Liquidity Risk [Member] - Other Commercial Commitments [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Financial liabilities	$ 2,182,569	$ 2,079,050
Up To 1 Month [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	559,586	138,282
Between 1 and 3 Months [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	407,158	277,495
More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	946,624	827,254
Between 1 and 5 Years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	247,941	684,584
Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	21,260	151,435
Guarantees [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	1,823,793	1,737,516
Guarantees [Member] \| Up To 1 Month [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	514,510	79,457
Guarantees [Member] \| Between 1 and 3 Months [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	244,543	175,437
Guarantees [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	835,030	739,170
Guarantees [Member] \| Between 1 and 5 Years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	208,479	592,017
Guarantees [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	21,231	151,435
Foreign Letters Of Credit Confirmed [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	75,499	57,686
Foreign Letters Of Credit Confirmed [Member] \| Up To 1 Month [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	16,681	12,247
Foreign Letters Of Credit Confirmed [Member] \| Between 1 and 3 Months [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	33,513	8,125
Foreign Letters Of Credit Confirmed [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	21,277	8,505
Foreign Letters Of Credit Confirmed [Member] \| Between 1 and 5 Years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	4,028	28,809
Foreign Letters Of Credit Confirmed [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities
Letters Of Credit Issued [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	201,699	158,799
Letters Of Credit Issued [Member] \| Up To 1 Month [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	12,367	36,662
Letters Of Credit Issued [Member] \| Between 1 and 3 Months [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	115,720	82,342
Letters Of Credit Issued [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	43,029	39,768
Letters Of Credit Issued [Member] \| Between 1 and 5 Years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	30,554	27
Letters Of Credit Issued [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	29
Letters Of Credit Issued [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	81,578	125,049
Letters Of Credit Issued [Member] \| Up To 1 Month [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	16,028	9,916
Letters Of Credit Issued [Member] \| Between 1 and 3 Months [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	13,382	11,591
Letters Of Credit Issued [Member] \| More than 3 months to 1 year [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	47,288	39,811
Letters Of Credit Issued [Member] \| Between 1 and 5 Years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities	4,880	63,731
Letters Of Credit Issued [Member] \| Due after 5 years [Member]
Disclosure of financial liabilities [line items]
Financial liabilities

RISK MANAGEMENT (Details 12)

RISK MANAGEMENT (Details 12) - Market Risk [Member] - USD $ in Thousands, $ in Thousands	Dec. 31, 2017CLP ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Consolidated [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk	$ 5,710		$ 3,950
Consolidated [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		$ 1,560	1,080
Consolidated [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		3,010	2,250
Fixed-Income Investments [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		5,510	2,710
Fixed-Income Investments [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		1,150	550
Fixed-Income Investments [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		2,360	1,330
Variable-Income Investments [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		10	30
Variable-Income Investments [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		0	0
Variable-Income Investments [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		0	0
Foreign Currency Investments [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		4,210	3,830
Foreign Currency Investments [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		530	610
Foreign Currency Investments [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk		$ 1,710	$ 1,910

RISK MANAGEMENT (Details 13)

RISK MANAGEMENT (Details 13) - Market Risk [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Local Currency Investments [Member] \| Loss Limit [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	$ 48,000	$ 48,000
Effect on capital	175,000	175,000
Local Currency Investments [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(22,958)	30,853
Effect on capital	(112,818)	146,208
Local Currency Investments [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(37,148)	21,978
Effect on capital	(141,287)	108,249
Local Currency Investments [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(29,110)	26,119
Effect on capital	(128,506)	120,159
Foreign Currency Investments [Member] \| Loss Limit [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	30	30
Effect on capital	75	75
Foreign Currency Investments [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	14	14
Effect on capital	42	35
Foreign Currency Investments [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	6	6
Effect on capital	15	13
Foreign Currency Investments [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	10	10
Effect on capital	23	26
Consolidated [Member] \| Loss Limit [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	48,000	48,000
Effect on capital	175,000	175,000
Consolidated [Member] \| Top of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(38,249)	31,764
Effect on capital	(142,442)	145,566
Consolidated [Member] \| Bottom of Range [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(23,571)	23,088
Effect on capital	(112,277)	107,959
Consolidated [Member] \| Weighted Average [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on financial income	(29,948)	27,390
Effect on capital	$ (128,360)	$ 119,632

RISK MANAGEMENT (Details 14)

RISK MANAGEMENT (Details 14) - Capital Risk [Member] - CLP ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of risk management strategy related to hedge accounting [line items]
Basic capital	$ 3,066,180	$ 2,868,706
Regulatory capital	$ 3,881,252	$ 3,657,707
Basic capital	7.92%	7.22%
Regulatory capital	13.91%	13.43%

SUBSEQUENT EVENTS (Details Narr

SUBSEQUENT EVENTS (Details Narrative) $ in Millions, in Millions	Feb. 06, 2018CLF ( )	Feb. 01, 2018CLF ( )	Dec. 31, 2017CLP ($)	Dec. 31, 2016CLP ($)
Disclosure of financial liabilities [line items]
Notion amount \| $			$ 177,224,139	$ 177,941,295
Non-adjusting Events After Reporting Period [Member] \| Bonds [Member] \| Unidad de Fomento (funds code) [Member] \| T15 [Member]
Disclosure of financial liabilities [line items]
Notion amount		5,000,000
Non-adjusting Events After Reporting Period [Member] \| Bonds [Member] \| Unidad de Fomento (funds code) [Member] \| T11 [Member]
Disclosure of financial liabilities [line items]
Notion amount	5,000,000