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Net Income (Expense) From Financial Operations (Details) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income (expense) from financial operations |  |  |  |  |
Net gains on trading derivatives | $ (162,183) |  | $ 38,217 |  | $ (18,974)
Trading investments |  |  |  |  | 10,008
Net gains on financial assets at fair value through profit or loss | 11,878 |  | 9,393 |  |
Net gains on derecognition of financial assets measured at amortised cost | 63,672 |  | 8,479 |  |
Sale of loans and accounts receivables from customers |  |  |  |  |
Current portfolio | 63 |  | (309) |  | 3,020
Charged-off portfolio | 3,248 |  | 709 |  | 3,020
Available for sale investments |  |  |  |  | 8,956
Repurchase of issued bonds | 3,265 | [1] | (840) | [1] | (742)
Other income (expense) from financial operations | 1,892 |  | (2,475) |  | (2,492)
Total income (expense) | $ (78,165) |  | $ 53,174 |  | $ 2,796
[1] | The Bank repurchased its own bonds, see Note 3 for details.

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