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Risk Management - Portfolio Concentration Credit Risk Geographic Region (Details) - CLP ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Cash and due from banks |  |
Credit risk |  |
Financial assets | $ 880,081 | $ 1,057,393
Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,745,366 | 1,538,578
Cash collateral on securities borrowed and reverse repurchase agreements |  |
Credit risk |  |
Financial assets | 97,289 | 91,641
Loans and advances to banks |  |
Credit risk |  |
Financial assets | 1,495,396 | 760,285
Central Bank of Chile |  |
Credit risk |  |
Financial assets | 1,100,831 | 350,916
Domestic banks |  |
Credit risk |  |
Financial assets | 100,023 | 120,017
Foreign banks |  |
Credit risk |  |
Financial assets | 294,542 | 289,352
Loans to customers |  |
Credit risk |  |
Financial assets | 27,926,632 | 25,451,513
Commercial loans |  |
Credit risk |  |
Financial assets | 15,438,398 | 13,960,818
Mortgage loans |  |
Credit risk |  |
Financial assets | 8,052,073 | 7,477,236
Consumer loans |  |
Credit risk |  |
Financial assets | 4,436,161 | 4,013,459
Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,526,315
FVOCI |  |
Credit risk |  |
Financial assets | 1,053,191 |
Instruments issued by the Chilean Governments and Central Bank of Chile | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,523,472 | 1,317,164
Instruments issued by the Chilean Governments and Central Bank of Chile | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 356,368
Instruments issued by the Chilean Governments and Central Bank of Chile | FVOCI |  |
Credit risk |  |
Financial assets | 164,222 |
Other instruments issued in Chile | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 129,607 | 221,092
Other instruments issued in Chile | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,168,913
Other instruments issued in Chile | FVOCI |  |
Credit risk |  |
Financial assets | 779,613 |
Instruments issued by foreign institutions | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 4,446 | 322
Instruments issued by foreign institutions | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,034
Instruments issued by foreign institutions | FVOCI |  |
Credit risk |  |
Financial assets | 109,356 |
Mutual fund investments | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 87,841 |
Derivative contracts for trading purposes |  |
Credit risk |  |
Financial assets | 1,478,533 | 1,220,092
Derivative contracts for trading purposes | Forwards |  |
Credit risk |  |
Financial assets | 735,444 | 506,614
Derivative contracts for trading purposes | Swaps |  |
Credit risk |  |
Financial assets | 738,130 | 710,123
Derivative contracts for trading purposes | Call Options |  |
Credit risk |  |
Financial assets | 4,839 | 514
Derivative contracts for trading purposes | Put Options |  |
Credit risk |  |
Financial assets | 120 | 2,841
Hedge derivative contracts |  |
Credit risk |  |
Financial assets | 35,414 | 27,849
Hedge derivative contracts | Swaps |  |
Credit risk |  |
Financial assets | 35,414 | 27,849
Domestic banks | Cash and due from banks |  |
Credit risk |  |
Financial assets | 773,368 | 695,213
Domestic banks | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,740,920 | 1,538,256
Domestic banks | Cash collateral on securities borrowed and reverse repurchase agreements |  |
Credit risk |  |
Financial assets | 97,289 | 91,641
Domestic banks | Loans and advances to banks |  |
Credit risk |  |
Financial assets | 1,200,854 | 470,933
Domestic banks | Central Bank of Chile |  |
Credit risk |  |
Financial assets | 1,100,831 | 350,916
Domestic banks | Domestic banks |  |
Credit risk |  |
Financial assets | 100,023 | 120,017
Domestic banks | Loans to customers |  |
Credit risk |  |
Financial assets | 27,833,088 | 25,393,211
Domestic banks | Commercial loans |  |
Credit risk |  |
Financial assets | 15,344,854 | 13,902,516
Domestic banks | Mortgage loans |  |
Credit risk |  |
Financial assets | 8,052,073 | 7,477,236
Domestic banks | Consumer loans |  |
Credit risk |  |
Financial assets | 4,436,161 | 4,013,459
Domestic banks | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,525,281
Domestic banks | FVOCI |  |
Credit risk |  |
Financial assets | 943,835 |
Domestic banks | Instruments issued by the Chilean Governments and Central Bank of Chile | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,523,472 | 1,317,164
Domestic banks | Instruments issued by the Chilean Governments and Central Bank of Chile | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 356,368
Domestic banks | Instruments issued by the Chilean Governments and Central Bank of Chile | FVOCI |  |
Credit risk |  |
Financial assets | 164,222 |
Domestic banks | Other instruments issued in Chile | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 129,607 | 221,092
Domestic banks | Other instruments issued in Chile | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,168,913
Domestic banks | Other instruments issued in Chile | FVOCI |  |
Credit risk |  |
Financial assets | 779,613 |
Domestic banks | Mutual fund investments | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 87,841 |
Domestic banks | Derivative contracts for trading purposes |  |
Credit risk |  |
Financial assets | 1,128,151 | 867,977
Domestic banks | Derivative contracts for trading purposes | Forwards |  |
Credit risk |  |
Financial assets | 670,595 | 392,130
Domestic banks | Derivative contracts for trading purposes | Swaps |  |
Credit risk |  |
Financial assets | 453,191 | 472,492
Domestic banks | Derivative contracts for trading purposes | Call Options |  |
Credit risk |  |
Financial assets | 4,309 | 514
Domestic banks | Derivative contracts for trading purposes | Put Options |  |
Credit risk |  |
Financial assets | 56 | 2,841
Domestic banks | Hedge derivative contracts |  |
Credit risk |  |
Financial assets | 4,547 |
Domestic banks | Hedge derivative contracts | Swaps |  |
Credit risk |  |
Financial assets | 4,547 |
United States | Cash and due from banks |  |
Credit risk |  |
Financial assets | 69,343 | 271,564
United States | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 4,446 | 322
United States | FVOCI |  |
Credit risk |  |
Financial assets | 108,544 |
United States | Instruments issued by foreign institutions | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 4,446 | 322
United States | Instruments issued by foreign institutions | FVOCI |  |
Credit risk |  |
Financial assets | 108,544 |
United States | Derivative contracts for trading purposes |  |
Credit risk |  |
Financial assets | 121,496 | 102,776
United States | Derivative contracts for trading purposes | Forwards |  |
Credit risk |  |
Financial assets | 23,082 | 23,162
United States | Derivative contracts for trading purposes | Swaps |  |
Credit risk |  |
Financial assets | 98,414 | 79,614
United States | Hedge derivative contracts |  |
Credit risk |  |
Financial assets | 14,348 | 8,632
United States | Hedge derivative contracts | Swaps |  |
Credit risk |  |
Financial assets | 14,348 | 8,632
Brazil | Loans and advances to banks |  |
Credit risk |  |
Financial assets | 209,693 | 158,524
Brazil | Foreign banks |  |
Credit risk |  |
Financial assets | 209,693 | 158,524
Brazil | Loans to customers |  |
Credit risk |  |
Financial assets | 354 |
Brazil | Commercial loans |  |
Credit risk |  |
Financial assets | 354 |
Other | Cash and due from banks |  |
Credit risk |  |
Financial assets | 37,370 | 90,616
Other | Loans and advances to banks |  |
Credit risk |  |
Financial assets | 84,849 | 130,828
Other | Foreign banks |  |
Credit risk |  |
Financial assets | 84,849 | 130,828
Other | Loans to customers |  |
Credit risk |  |
Financial assets | 93,190 | 58,302
Other | Commercial loans |  |
Credit risk |  |
Financial assets | 93,190 | 58,302
Other | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,034
Other | FVOCI |  |
Credit risk |  |
Financial assets | 812 |
Other | Instruments issued by foreign institutions | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets |  | 1,034
Other | Instruments issued by foreign institutions | FVOCI |  |
Credit risk |  |
Financial assets | 812 |
Other | Derivative contracts for trading purposes |  |
Credit risk |  |
Financial assets | 228,886 | 249,339
Other | Derivative contracts for trading purposes | Forwards |  |
Credit risk |  |
Financial assets | 41,767 | 91,322
Other | Derivative contracts for trading purposes | Swaps |  |
Credit risk |  |
Financial assets | 186,525 | 158,017
Other | Derivative contracts for trading purposes | Call Options |  |
Credit risk |  |
Financial assets | 530 |
Other | Derivative contracts for trading purposes | Put Options |  |
Credit risk |  |
Financial assets | 64 |
Other | Hedge derivative contracts |  |
Credit risk |  |
Financial assets | 16,519 | 19,217
Other | Hedge derivative contracts | Swaps |  |
Credit risk |  |
Financial assets | $ 16,519 | $ 19,217

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