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Financial Assets Held-for-Trading (Details Textual) - Financial assets held-for-trading [Member] - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Other instruments with repurchase agreements [Member] | Instruments issued by the Chilean Governments and Central Bank of Chile [Member]    
Disclosure of financial assets [line items]    
Financial assets at fair value through profit or loss, classified as held for trading $ 15,243 $ 115,749
Repurchase agreement expiration period 0 years  
Other instruments with repurchase agreements [Member] | Other instruments issued in Chile [Member]    
Disclosure of financial assets [line items]    
Financial assets at fair value through profit or loss, classified as held for trading $ 251,158 99,268
Repurchase agreement expiration period 0 years  
Other instruments [Member] | Instruments issued by the Chilean Governments and Central Bank of Chile [Member] | Comder Contraparte Central S.A [Member]    
Disclosure of financial assets [line items]    
Amount of other financial instruments maintained as collateral guaranteeing derivative contracts $ 57,639 34,456
Mortgage financial bonds [Member]    
Disclosure of financial assets [line items]    
Financial asset classified as held for trading which is presented as a reduction in debt issued $ 8,029 $ 11,397