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Risk Management (Details 8) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of detailed information about financial instruments [line items] |  |
Total | $ 80 |
Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 59,129,994 | $ 48,345,002
Deposits In Banks [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 2,693,342 | 1,240,578
Cash Items In Process Of Collection [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 355,062 | 353,757
Financial Derivative Contracts [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 8,148,608 | 3,100,635
Financial Assets Held For Trading [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 270,204 | 77,041
Loans And Account Receivable At Amortised Cost / Loans And Account Receivable At FVOCI [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 31,841,485 | 29,399,589
Debt Instrument At Fair Value Through Other Comprehensive Income [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 4,010,272 | 2,394,323
Letters Of Credit Issued [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 140,572 | 223,420
Foreign Letters Of Credit Confirmed [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 70,192 | 57,038
Performance Guarantees [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 1,929,894 | 1,954,205
Available Credit Lines [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 8,732,422 | 8,997,650
Personal guarantees [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | 451,950 | 133,623
Other Irrevocable Credit Commitments [Member] | Credit Risk [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Total | $ 485,991 | $ 327,297

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