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Derivative Financial Instruments and Hedge Accounting (Details 1) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | $ 377,131,597 | $ 241,467,084 | $ 177,224,139
Fair Value Hedges [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 17,174,436 | 9,745,718 | 7,795,629
Fair Value Hedges [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 14,628,050 | 7,983,106 | 6,078,473
Fair Value Hedges [Member] | Interest Rate Swap Contract [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 2,546,386 | 1,762,612 | 1,717,156
Fair Value Hedges [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 6,834,450 | 2,806,662 |
Fair Value Hedges [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 650,000 |  |
Fair Value Hedges [Member] | Debt Instrument At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 400,296 | 172,072 |
Fair Value Hedges [Member] | Debt Instrument At FVOCI [Member] | Mortgage financing bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 2,728 | 3,779 |
Fair Value Hedges [Member] | Debt Instrument At FVOCI [Member] | Treasury bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 186,843 | 174,440 |
Fair Value Hedges [Member] | Debt Instrument At FVOCI [Member] | Chilean Central Bank bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 254,685 | 449,730 |
Fair Value Hedges [Member] | Debt Instruments At FVOCI [Member] | Chiliean Treasury Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 289,369 | 524,859 |
Fair Value Hedges [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,192,695 | 486,013 | 137,985
Fair Value Hedges [Member] | Issued debt instruments [Member] | Senior Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 7,363,370 | 5,128,163 | 4,382,487
Fair Value Hedges [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,970,240 | 1,848,509 | 878,686
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,270,992 | 1,276,909 | 715,701
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Interest Rate Swap Contract [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 699,248 | 571,600 | 162,985
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 633,300 | 653,872 |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Debt Instrument At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Debt Instrument At FVOCI [Member] | Mortgage financing bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Debt Instrument At FVOCI [Member] | Treasury bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Debt Instrument At FVOCI [Member] | Chilean Central Bank bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | Debt Instruments At FVOCI [Member] | Chiliean Treasury Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Due Within 1 Year [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 685,259 | 486,013 | 137,985
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 | 651,681 | 708,624 | 25,000
Fair Value Hedges [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,751,437 | 3,144,709 | 2,440,933
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 2,791,437 | 2,794,709 | 1,512,238
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 | 960,000 | 350,000 | 928,695
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,189,036 | 1,272,382 |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 600,000 |  |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Debt Instrument At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Debt Instrument At FVOCI [Member] | Mortgage financing bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 2,728 |  |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Debt Instrument At FVOCI [Member] | Treasury bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Debt Instrument At FVOCI [Member] | Chilean Central Bank bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 254,685 | 449,730 |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | Debt Instruments At FVOCI [Member] | Chiliean Treasury Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 289,369 | 304,818 |
Fair Value Hedges [Member] | Between 1 and 3 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 281,921 |  |
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 | 1,133,698 | 1,117,779 | 1,399,686
Fair Value Hedges [Member] | Between 3 and 6 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,229,726 | 1,578,840 | 1,994,389
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,774,647 | 1,228,840 | 1,813,221
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 | 455,079 | 350,000 | 181,168
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,545,240 | 276,590 |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 50,000 |  |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Debt Instrument At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 5,605 |  |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Debt Instrument At FVOCI [Member] | Mortgage financing bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 3,779 |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Debt Instrument At FVOCI [Member] | Treasury bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 149,474 |  |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Debt Instrument At FVOCI [Member] | Chilean Central Bank bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | Debt Instruments At FVOCI [Member] | Chiliean Treasury Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Between 3 and 6 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 225,515 |  |
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 | 2,253,892 | 1,298,471 | 670,488
Fair Value Hedges [Member] | Over 6 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 7,223,033 | 3,173,660 | 2,481,621
Fair Value Hedges [Member] | Over 6 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 6,790,974 | 2,682,648 | 2,037,313
Fair Value Hedges [Member] | Over 6 years [Member] | Interest Rate Swap Contract [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 432,059 | 491,012 | 444,308
Fair Value Hedges [Member] | Over 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,466,874 | 603,818 |
Fair Value Hedges [Member] | Over 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Over 6 years [Member] | Debt Instrument At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 394,691 | 172,072 |
Fair Value Hedges [Member] | Over 6 years [Member] | Debt Instrument At FVOCI [Member] | Mortgage financing bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Over 6 years [Member] | Debt Instrument At FVOCI [Member] | Treasury bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 37,369 | 174,440 |
Fair Value Hedges [Member] | Over 6 years [Member] | Debt Instrument At FVOCI [Member] | Chilean Central Bank bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Fair Value Hedges [Member] | Over 6 years [Member] | Debt Instruments At FVOCI [Member] | Chiliean Treasury Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 220,041 |
Fair Value Hedges [Member] | Over 6 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | 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 | 3,324,099 | 2,003,289 | 2,287,313
Cash Flow Hedge [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 16,939,379 | 13,456,422 | 9,751,673
Cash Flow Hedge [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 15,053,362 | 13,082,521 | 8,731,598
Cash Flow Hedge [Member] | Currency Forwards [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,886,017 | 373,901 | 1,020,075
Cash Flow Hedge [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 9,972,447 | 8,843,999 |
Cash Flow Hedge [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 109,585 |
Cash Flow Hedge [Member] | Debt Instruments At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Debt Instruments At FVOCI [Member] | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 166,628 |
Cash Flow Hedge [Member] | Debt Instruments At FVOCI [Member] | Chilean Central Bank Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 82,727 | 246,306 |
Cash Flow Hedge [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Issued debt instruments [Member] | Senior bonds (variable rate) [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,722,163 | 666,823 | 1,070,524
Cash Flow Hedge [Member] | Issued debt instruments [Member] | Senior bonds (fixed rate) [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,722,163 | 1,658,733 | 888,077
Cash Flow Hedge [Member] | Interbank borrowings [Member] | Interbank Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 969,374 | 1,764,348 | 1,322,362
Cash Flow Hedge [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 5,322,890 | 4,265,212 | 3,079,107
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,205,129 | 3,891,311 | 2,059,032
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Currency Forwards [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,117,761 | 373,901 | 1,020,075
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,334,734 | 1,890,696 |
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 109,585 |
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Debt Instruments At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Debt Instruments At FVOCI [Member] | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Debt Instruments At FVOCI [Member] | Chilean Central Bank Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [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 | 358,118 |  | 120,520
Cash Flow Hedge [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 | 803,596 | 500,583 | 241,183
Cash Flow Hedge [Member] | Due Within 1 Year [Member] | Interbank borrowings [Member] | Interbank Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 826,442 | 1,764,348 | 919,448
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,686,405 | 3,746,437 | 1,755,144
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 2,918,149 | 3,746,437 | 1,755,144
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Currency Forwards [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 768,256 |  |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,505,595 | 3,026,824 |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Debt Instruments At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Debt Instruments At FVOCI [Member] | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Debt Instruments At FVOCI [Member] | Chilean Central Bank Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [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 | 341,283 | 666,823 | 647,550
Cash Flow Hedge [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 | 1,696,595 | 52,790 | 121,619
Cash Flow Hedge [Member] | Between 1 and 3 years [Member] | Interbank borrowings [Member] | Interbank Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 142,932 |  | 402,914
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,497,630 | 2,473,962 | 2,130,105
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,497,630 | 2,473,962 | 2,130,105
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Currency Forwards [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,995,156 | 1,459,389 |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Debt Instruments At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Debt Instruments At FVOCI [Member] | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  | 166,628 |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | Debt Instruments At FVOCI [Member] | Chilean Central Bank Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 82,727 | 246,306 |
Cash Flow Hedge [Member] | Between 3 and 6 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [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 | 1,152,461 |  | 302,454
Cash Flow Hedge [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 | 1,152,461 | 601,639 | 224,401
Cash Flow Hedge [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 [Member] | Over 6 years [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,332,454 | 2,970,811 | 2,787,317
Cash Flow Hedge [Member] | Over 6 years [Member] | Cross Currency Swaps [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 4,432,454 | 2,970,811 | 2,787,317
Cash Flow Hedge [Member] | Over 6 years [Member] | Currency Forwards [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Mortgage Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 3,136,962 | 2,467,090 |
Cash Flow Hedge [Member] | Over 6 years [Member] | Loans and accounts receivable at amortised cost [Member] | Commercial Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Debt Instruments At FVOCI [Member] | Chilean sovereign bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Debt Instruments At FVOCI [Member] | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Debt Instruments At FVOCI [Member] | Chilean Central Bank Bonds [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | TimeDepositsAndOtherTimeLiabilitiesCategoryMember | Time deposits [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Issued debt instruments [Member] | Senior bonds (variable rate) [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,069,511 |  |
Cash Flow Hedge [Member] | Over 6 years [Member] | Issued debt instruments [Member] | Senior bonds (fixed rate) [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount | 1,069,511 | 503,721 | 300,874
Cash Flow Hedge [Member] | Over 6 years [Member] | Interbank borrowings [Member] | Interbank Loans [Member] |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Notional amount |  |  |

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