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Risk Management - Portfolio Concentration Credit Risk Industry Sector (Details) - CLP ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Cash and due from banks |  |
Credit risk |  |
Financial assets | $ 1,057,393 | $ 1,408,167
Cash and due from banks | Financial Services |  |
Credit risk |  |
Financial assets | 894,972 | 1,289,666
Cash and due from banks | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 162,421 | 118,501
Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,538,578 | 1,379,958
Financial assets held-for-trading | Financial Services |  |
Credit risk |  |
Financial assets | 221,414 | 897,612
Financial assets held-for-trading | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 1,062,558 | 423,565
Financial assets held-for-trading | Government |  |
Credit risk |  |
Financial assets | 254,606 | 58,781
Cash collateral on securities borrowed and reverse repurchase agreements |  |
Credit risk |  |
Financial assets | 91,641 | 55,703
Cash collateral on securities borrowed and reverse repurchase agreements | Financial Services |  |
Credit risk |  |
Financial assets | 32,555 | 6,280
Cash collateral on securities borrowed and reverse repurchase agreements | Government |  |
Credit risk |  |
Financial assets | 2,576 |
Cash collateral on securities borrowed and reverse repurchase agreements | Trade |  |
Credit risk |  |
Financial assets | 24,717 | 20,154
Cash collateral on securities borrowed and reverse repurchase agreements | Manufacturing |  |
Credit risk |  |
Financial assets |  | 6,259
Cash collateral on securities borrowed and reverse repurchase agreements | Mining |  |
Credit risk |  |
Financial assets | 12,522 | 2,978
Cash collateral on securities borrowed and reverse repurchase agreements | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 7,464 | 14,236
Cash collateral on securities borrowed and reverse repurchase agreements | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 13 | 19
Cash collateral on securities borrowed and reverse repurchase agreements | Fishing |  |
Credit risk |  |
Financial assets | 672 | 531
Cash collateral on securities borrowed and reverse repurchase agreements | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 7,382 | 3,800
Cash collateral on securities borrowed and reverse repurchase agreements | Services |  |
Credit risk |  |
Financial assets | 3,740 |
Cash collateral on securities borrowed and reverse repurchase agreements | Other |  |
Credit risk |  |
Financial assets |  | 1,446
Loans and advances to banks |  |
Credit risk |  |
Financial assets | 760,285 | 1,173,446
Loans and advances to banks | Financial Services |  |
Credit risk |  |
Financial assets | 409,369 | 473,105
Loans and advances to banks | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 350,916 | 700,341
Central Bank of Chile |  |
Credit risk |  |
Financial assets | 350,916 | 700,341
Central Bank of Chile | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 350,916 | 700,341
Domestic banks |  |
Credit risk |  |
Financial assets | 120,017 | 208,403
Domestic banks | Financial Services |  |
Credit risk |  |
Financial assets | 120,017 | 208,403
Foreign banks |  |
Credit risk |  |
Financial assets | 289,352 | 264,702
Foreign banks | Financial Services |  |
Credit risk |  |
Financial assets | 289,352 | 264,702
Loans to customers |  |
Credit risk |  |
Financial assets | 25,451,513 | 25,398,424
Loans to customers | Financial Services |  |
Credit risk |  |
Financial assets | 1,851,649 | 2,116,203
Loans to customers | Retail (Individuals) |  |
Credit risk |  |
Financial assets | 11,490,695 | 10,899,389
Loans to customers | Trade |  |
Credit risk |  |
Financial assets | 2,035,129 | 2,243,474
Loans to customers | Manufacturing |  |
Credit risk |  |
Financial assets | 1,399,692 | 1,561,737
Loans to customers | Mining |  |
Credit risk |  |
Financial assets | 422,176 | 432,822
Loans to customers | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 565,695 | 566,438
Loans to customers | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 1,354,069 | 1,184,869
Loans to customers | Fishing |  |
Credit risk |  |
Financial assets | 145,266 | 264,042
Loans to customers | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 1,612,930 | 1,636,994
Loans to customers | Construction |  |
Credit risk |  |
Financial assets | 1,493,373 | 1,647,862
Loans to customers | Services |  |
Credit risk |  |
Financial assets | 1,964,238 | 1,937,428
Loans to customers | Other |  |
Credit risk |  |
Financial assets | 1,116,601 | 907,166
Commercial loans |  |
Credit risk |  |
Financial assets | 13,960,818 | 14,499,035
Commercial loans | Financial Services |  |
Credit risk |  |
Financial assets | 1,851,649 | 2,116,203
Commercial loans | Trade |  |
Credit risk |  |
Financial assets | 2,035,129 | 2,243,474
Commercial loans | Manufacturing |  |
Credit risk |  |
Financial assets | 1,399,692 | 1,561,737
Commercial loans | Mining |  |
Credit risk |  |
Financial assets | 422,176 | 432,822
Commercial loans | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 565,695 | 566,438
Commercial loans | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 1,354,069 | 1,184,869
Commercial loans | Fishing |  |
Credit risk |  |
Financial assets | 145,266 | 264,042
Commercial loans | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 1,612,930 | 1,636,994
Commercial loans | Construction |  |
Credit risk |  |
Financial assets | 1,493,373 | 1,647,862
Commercial loans | Services |  |
Credit risk |  |
Financial assets | 1,964,238 | 1,937,428
Commercial loans | Other |  |
Credit risk |  |
Financial assets | 1,116,601 | 907,166
Residential mortgage loans |  |
Credit risk |  |
Financial assets | 7,477,236 | 6,924,766
Residential mortgage loans | Retail (Individuals) |  |
Credit risk |  |
Financial assets | 7,477,236 | 6,924,766
Consumer loans |  |
Credit risk |  |
Financial assets | 4,013,459 | 3,974,623
Consumer loans | Retail (Individuals) |  |
Credit risk |  |
Financial assets | 4,013,459 | 3,974,623
Financial assets available-for-sale |  |
Credit risk |  |
Financial assets | 1,526,315 | 374,470
Financial assets available-for-sale | Financial Services |  |
Credit risk |  |
Financial assets | 1,107,037 | 192,847
Financial assets available-for-sale | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 207,474 | 20,944
Financial assets available-for-sale | Government |  |
Credit risk |  |
Financial assets | 148,894 | 38,256
Financial assets available-for-sale | Trade |  |
Credit risk |  |
Financial assets | 31,833 | 52,638
Financial assets available-for-sale | Manufacturing |  |
Credit risk |  |
Financial assets | 8,589 |
Financial assets available-for-sale | Mining |  |
Credit risk |  |
Financial assets | 7,662 | 7,943
Financial assets available-for-sale | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 2,883 | 10,690
Financial assets available-for-sale | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 6,972 | 51,152
Financial assets available-for-sale | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 4,971 |
Instruments issued by the Chilean Government and Central Bank | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 1,317,164 | 482,346
Instruments issued by the Chilean Government and Central Bank | Financial assets held-for-trading | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 1,062,558 | 423,565
Instruments issued by the Chilean Government and Central Bank | Financial assets held-for-trading | Government |  |
Credit risk |  |
Financial assets | 254,606 | 58,781
Instruments issued by the Chilean Government and Central Bank | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets | 356,368 | 59,200
Instruments issued by the Chilean Government and Central Bank | Financial assets available-for-sale | Chilean Central Bank |  |
Credit risk |  |
Financial assets | 207,474 | 20,944
Instruments issued by the Chilean Government and Central Bank | Financial assets available-for-sale | Government |  |
Credit risk |  |
Financial assets | 148,894 | 38,256
Other instruments issued in Chile | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 221,092 | 897,227
Other instruments issued in Chile | Financial assets held-for-trading | Financial Services |  |
Credit risk |  |
Financial assets | 221,092 | 897,227
Other instruments issued in Chile | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets | 1,168,913 | 314,043
Other instruments issued in Chile | Financial assets available-for-sale | Financial Services |  |
Credit risk |  |
Financial assets | 1,106,003 | 191,620
Other instruments issued in Chile | Financial assets available-for-sale | Trade |  |
Credit risk |  |
Financial assets | 31,833 | 52,638
Other instruments issued in Chile | Financial assets available-for-sale | Manufacturing |  |
Credit risk |  |
Financial assets | 8,589 |
Other instruments issued in Chile | Financial assets available-for-sale | Mining |  |
Credit risk |  |
Financial assets | 7,662 | 7,943
Other instruments issued in Chile | Financial assets available-for-sale | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 2,883 | 10,690
Other instruments issued in Chile | Financial assets available-for-sale | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 6,972 | 51,152
Other instruments issued in Chile | Financial assets available-for-sale | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 4,971 |
Instruments issued by foreign institutions | Financial assets held-for-trading |  |
Credit risk |  |
Financial assets | 322 | 385
Instruments issued by foreign institutions | Financial assets held-for-trading | Financial Services |  |
Credit risk |  |
Financial assets | 322 | 385
Instruments issued by foreign institutions | Financial assets available-for-sale |  |
Credit risk |  |
Financial assets | 1,034 | 1,227
Instruments issued by foreign institutions | Financial assets available-for-sale | Financial Services |  |
Credit risk |  |
Financial assets | 1,034 | 1,227
Derivative contracts for trading purposes |  |
Credit risk |  |
Financial assets | 1,220,092 | 875,949
Derivative contracts for trading purposes | Financial Services |  |
Credit risk |  |
Financial assets | 890,611 | 710,074
Derivative contracts for trading purposes | Trade |  |
Credit risk |  |
Financial assets | 53,903 | 36,546
Derivative contracts for trading purposes | Manufacturing |  |
Credit risk |  |
Financial assets | 15,909 | 7,999
Derivative contracts for trading purposes | Mining |  |
Credit risk |  |
Financial assets | 3,400 | 29,043
Derivative contracts for trading purposes | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 4,763 | 9,609
Derivative contracts for trading purposes | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 3,205 | 5,508
Derivative contracts for trading purposes | Fishing |  |
Credit risk |  |
Financial assets | 228 | 360
Derivative contracts for trading purposes | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 9,664 | 403
Derivative contracts for trading purposes | Construction |  |
Credit risk |  |
Financial assets | 41 | 2,019
Derivative contracts for trading purposes | Services |  |
Credit risk |  |
Financial assets | 238,368 | 74,388
Derivative contracts for trading purposes | Forwards |  |
Credit risk |  |
Financial assets | 506,614 | 163,716
Derivative contracts for trading purposes | Forwards | Financial Services |  |
Credit risk |  |
Financial assets | 245,873 | 80,886
Derivative contracts for trading purposes | Forwards | Trade |  |
Credit risk |  |
Financial assets | 7,666 | 4,698
Derivative contracts for trading purposes | Forwards | Manufacturing |  |
Credit risk |  |
Financial assets | 9,860 | 4,651
Derivative contracts for trading purposes | Forwards | Mining |  |
Credit risk |  |
Financial assets | 2,561 | 179
Derivative contracts for trading purposes | Forwards | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 84 | 121
Derivative contracts for trading purposes | Forwards | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 54 | 182
Derivative contracts for trading purposes | Forwards | Fishing |  |
Credit risk |  |
Financial assets | 219 | 7
Derivative contracts for trading purposes | Forwards | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 2,368 | 403
Derivative contracts for trading purposes | Forwards | Construction |  |
Credit risk |  |
Financial assets | 29 | 12
Derivative contracts for trading purposes | Forwards | Services |  |
Credit risk |  |
Financial assets | 237,900 | 72,577
Derivative contracts for trading purposes | Swaps |  |
Credit risk |  |
Financial assets | 710,123 | 709,091
Derivative contracts for trading purposes | Swaps | Financial Services |  |
Credit risk |  |
Financial assets | 643,735 | 627,621
Derivative contracts for trading purposes | Swaps | Trade |  |
Credit risk |  |
Financial assets | 44,773 | 30,806
Derivative contracts for trading purposes | Swaps | Manufacturing |  |
Credit risk |  |
Financial assets | 5,563 | 2,910
Derivative contracts for trading purposes | Swaps | Mining |  |
Credit risk |  |
Financial assets | 839 | 28,864
Derivative contracts for trading purposes | Swaps | Electricity, Gas and Water |  |
Credit risk |  |
Financial assets | 4,679 | 9,488
Derivative contracts for trading purposes | Swaps | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 2,862 | 5,234
Derivative contracts for trading purposes | Swaps | Fishing |  |
Credit risk |  |
Financial assets | 9 | 353
Derivative contracts for trading purposes | Swaps | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 7,244 |
Derivative contracts for trading purposes | Swaps | Construction |  |
Credit risk |  |
Financial assets |  | 2,007
Derivative contracts for trading purposes | Swaps | Services |  |
Credit risk |  |
Financial assets | 419 | 1,808
Derivative contracts for trading purposes | Call Options |  |
Credit risk |  |
Financial assets | 514 | 1,558
Derivative contracts for trading purposes | Call Options | Financial Services |  |
Credit risk |  |
Financial assets | 269 | 732
Derivative contracts for trading purposes | Call Options | Trade |  |
Credit risk |  |
Financial assets | 32 | 451
Derivative contracts for trading purposes | Call Options | Manufacturing |  |
Credit risk |  |
Financial assets | 90 | 285
Derivative contracts for trading purposes | Call Options | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 67 | 90
Derivative contracts for trading purposes | Call Options | Transportation and telecommunications |  |
Credit risk |  |
Financial assets | 52 |
Derivative contracts for trading purposes | Call Options | Construction |  |
Credit risk |  |
Financial assets | 1 |
Derivative contracts for trading purposes | Call Options | Services |  |
Credit risk |  |
Financial assets | 3 |
Derivative contracts for trading purposes | Put Options |  |
Credit risk |  |
Financial assets | 2,841 | 1,584
Derivative contracts for trading purposes | Put Options | Financial Services |  |
Credit risk |  |
Financial assets | 734 | 835
Derivative contracts for trading purposes | Put Options | Trade |  |
Credit risk |  |
Financial assets | 1,432 | 591
Derivative contracts for trading purposes | Put Options | Manufacturing |  |
Credit risk |  |
Financial assets | 396 | 153
Derivative contracts for trading purposes | Put Options | Agriculture and livestock |  |
Credit risk |  |
Financial assets | 222 | 2
Derivative contracts for trading purposes | Put Options | Construction |  |
Credit risk |  |
Financial assets | 11 |
Derivative contracts for trading purposes | Put Options | Services |  |
Credit risk |  |
Financial assets | 46 | 3
Hedge derivative contracts |  |
Credit risk |  |
Financial assets | 27,849 | 63,700
Hedge derivative contracts | Financial Services |  |
Credit risk |  |
Financial assets | 27,849 | 63,700
Hedge derivative contracts | Swaps |  |
Credit risk |  |
Financial assets | 27,849 | 63,700
Hedge derivative contracts | Swaps | Financial Services |  |
Credit risk |  |
Financial assets | $ 27,849 | $ 63,700

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