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Net Financial Operating Income (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure of Net Financial Operating Income [Abstract] |
Schedule of gain (losses) from trading and brokerage activities |
|  | 2018 |  |  | 2019 |  |  | 2020 |
|  | MCh$ |  |  | MCh$ |  |  | MCh$ |
Net income on financial assets held-for-trading |  |  | 42,605 |  |  |  | 44,274 |  |  |  | 24,715 |
Gain (loss) from mark to market |  |  | 8,038 |  |  |  | 32,128 |  |  |  | 33,216 |
Financial assets held-for-trading |  |  | 50,643 |  |  |  | 76,402 |  |  |  | 57,931 |
Sale of financial assets at fair value through other comprehensive income |  |  | 1,118 |  |  |  | 4,789 |  |  |  | 27,091 |
Sale of loan portfolio |  |  | 267 |  |  |  | — |  |  |  | 39 |
Net (loss) gain of other transactions |  |  | 384 |  |  |  | (145 | ) |  |  | 29 |
Derivative instruments |  |  | 64,730 |  |  |  | 32,391 |  |  |  | (96,369 | )
Total |  |  | 117,142 |  |  |  | 113,437 |  |  |  | (11,279 | )

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