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DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details Narrative) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of financial assets [line items] |  |
Available for sale investments |  | $ 2,574,546
Other comprehensive income, net of tax, available-for-sale financial assets | $ 6,424 | 1,855
Bank maintains guarantees amount | 98,832 | 33,711
Total Attributable To Shareholders Of The Bank [Member] |  |
Disclosure of financial assets [line items] |  |
Other comprehensive income, net of tax, available-for-sale financial assets | 5,114 | 459
Non-controlling Interest [Member] |  |
Disclosure of financial assets [line items] |  |
Other comprehensive income, net of tax, available-for-sale financial assets | 1,310 | 1,396
Other Chilean Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 27,673
Foreign Financial Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 284,072
Securities Sold Under Repurchase Agreements [Member] | Other Chilean Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 1,156
Securities Sold Under Repurchase Agreements [Member] | Foreign Financial Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 24,910
Chilean Central Bank And Government Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 2,262,801
Chilean Central Bank And Government Securities [Member] | Securities Sold Under Repurchase Agreements [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments |  | 241,995
Comder Contraparte Central S.A. [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments | 48,081 | 42,910
London Clearing House (LCH) [Member] |  |
Disclosure of financial assets [line items] |  |
Available for sale investments | $ 58,892 | $ 48,106

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