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Net Financial Operating Income (Tables) | 12 Months Ended
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Dec. 31, 2019
Net Financial Operating Income [abstract] |
Schedule of gain (losses) from trading and brokerage activities |
|  | 2017 |  |  | 2018 |  |  | 2019 |
|  | MCh$ |  |  | MCh$ |  |  | MCh$ |
Net income on financial assets held-for-trading |  |  | 46,207 |  |  |  | 42,605 |  |  |  | 44,274 |
Gain (loss) from mark to market |  |  | 4,435 |  |  |  | 8,038 |  |  |  | 32,128 |
Financial assets held-for-trading |  |  | 50,642 |  |  |  | 50,643 |  |  |  | 76,402 |
Sale of financial assets at fair value through other comprehensive income |  |  | 6,514 |  |  |  | 1,118 |  |  |  | 4,789 |
Sale of loan portfolio |  |  | 2,063 |  |  |  | 267 |  |  |  | — |
Net (loss) gain of other transactions |  |  | 233 |  |  |  | 384 |  |  |  | (145 | )
Derivative instruments |  |  | (89,113 | ) |  |  | 64,730 |  |  |  | 32,391 |
Total |  |  | (29,661 | ) |  |  | 117,142 |  |  |  | 113,437 |

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