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Financial Assets Held-for-Trading (Details) $ in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CLP ($)
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | $ 1,379,958 | $ 2,500,005 | $ 1,538,578
Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 1,379,958 |  | 1,538,578
Central Bank bonds | Instruments issued by the Chilean Government and Central Bank | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 30,546 |  | 400,368
Central Bank promissory notes | Instruments issued by the Chilean Government and Central Bank | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 393,019 |  | 662,190
Other instruments | Instruments issued by the Chilean Government and Central Bank | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 58,781 |  | 254,606
Other instruments | Instruments issued by the Chilean Government and Central Bank | Financial Assets held-for-trading | Comder Contraparte Central S.A |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Amount of other financial instruments maintained as collateral guaranteeing derivative contracts | $ 34,585 | 9,945 |  |
Other instruments | Other instruments issued in Chile | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 672 |  | 715
Other instruments | Instruments issued by foreign institutions | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 385 |  | 322
Other instruments with repurchase agreements | Instruments issued by the Chilean Government and Central Bank | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets at fair value through profit or loss, classified as held for trading |  | $ 21,789 |  | 5,096
Repurchase agreement expiration period | 7 days | 4 days |  |
Other instruments with repurchase agreements | Other instruments issued in Chile | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets at fair value through profit or loss, classified as held for trading |  | $ 159,803 |  | 158,731
Repurchase agreement expiration period | 7 days | 10 days |  |
Bonds from domestic banks | Other instruments issued in Chile | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | $ 21 |  | 2,070
Deposits in domestic banks | Other instruments issued in Chile | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial assets held-for-trading |  | 896,534 |  | $ 218,307
Mortgage finance bonds | Financial Assets held-for-trading |  |  |  |
Financial Assets Held-for-Trading |  |  |  |
Financial asset classified as held for trading which is presented as a reduction in debt issued | $ 15,032 | $ 19,649 |  |

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