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RISK MANAGEMENT (Details 6) - CLP ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 723 | $ 1,440
Macro Economic [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | 882,414 |
Gross carrying amount | $ 30,282,022 |
Reported ECL Coverage | 2.91% |
Macro Economic [Member] | Favorable Scenario 2 [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 745,089 |
Reported ECL Coverage | 2.46% |
Macro Economic [Member] | Favorable Scenario 1 [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 815,113 |
Reported ECL Coverage | 2.69% |
Macro Economic [Member] | Base Scenario [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 879,358 |
Reported ECL Coverage | 2.90% |
Macro Economic [Member] | Unfavorable Scenario 2 [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 949,329 |
Reported ECL Coverage | 3.13% |
Macro Economic [Member] | Unfavorable Scenario 2 [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Reported ECL allowance | $ 970,563 |
Reported ECL Coverage | 3.21% |

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