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EXPECTED CREDIT LOSSESS ALLOWANCE (Details 1) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  | $ 51,978 | $ 47,605
Total provisions and charge-offs |  | (36,279) | (36,383)
Provisions released |  | (55,018) |
Net charge offs of individually significant loans |  | 15,699 | 11,222
Provisions for Loan Losses [Member] | Loans to Customers [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  | (15,699) | (11,222)
Provisions established |  | (516,646) | (544,240)
Total provisions and charge-offs |  | (532,345) | (555,462)
Provisions released |  | 146,563 | 135,081
Recovery of loans previously charged off |  | 83,527 | 78,298
Net charge offs of individually significant loans |  | (302,255) | (342,083)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Individual Allowance [Member] | Interbank Loan [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (307) | (3,052)
Total provisions and charge-offs |  | (307) | (3,052)
Provisions released |  | 3,970 | 83
Recovery of loans previously charged off |  |  |
Net charge offs of individually significant loans |  | 3,663 | (2,969)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Individual Allowance [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  | (15,699) | (11,222)
Provisions established |  | (64,658) | (61,002)
Total provisions and charge-offs |  | (80,357) | (72,224)
Provisions released |  | 55,925 | 43,183
Recovery of loans previously charged off |  | 11,114 | 11,142
Net charge offs of individually significant loans |  | (13,318) | (17,899)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Individual Allowance [Member] | Contingent Loan [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (3,117) | (11,986)
Total provisions and charge-offs |  | (3,117) | (11,986)
Provisions released |  | 7,001 | 6,963
Recovery of loans previously charged off |  |  |
Net charge offs of individually significant loans |  | 3,884 | (5,023)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Group Allowance [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (148,681) | (133,855)
Total provisions and charge-offs |  | (148,681) | (133,855)
Provisions released |  | 20,491 | 14,432
Recovery of loans previously charged off |  | 21,499 | 16,043
Net charge offs of individually significant loans |  | (106,691) | (103,380)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Group Allowance [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (43,621) | (50,892)
Total provisions and charge-offs |  | (43,621) | (50,892)
Provisions released |  | 11,427 | 34,246
Recovery of loans previously charged off |  | 10,942 | 10,041
Net charge offs of individually significant loans |  | (21,252) | (6,605)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Group Allowance [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (252,038) | (280,544)
Total provisions and charge-offs |  | (252,038) | (280,544)
Provisions released |  | 46,089 | 30,790
Recovery of loans previously charged off |  | 39,972 | 41,072
Net charge offs of individually significant loans |  | (165,977) | (208,682)
Provisions for Loan Losses [Member] | Loans to Customers [Member] | Group Allowance [Member] | Contingent Loan [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Charged-off individually significant loans |  |  |
Provisions established |  | (4,224) | (2,909)
Total provisions and charge-offs |  | (4,224) | (2,909)
Provisions released |  | 1,660 | 5,384
Recovery of loans previously charged off |  |  |
Net charge offs of individually significant loans |  | $ (2,564) | $ 2,475

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