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Risk Management (Details 12) - Liquidity Risk [Member] - CLP ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of financial assets [line items]    
Total liquidity portfolio $ 6,013,124 $ 3,538,937
Financial investments for trading [Member]    
Disclosure of financial assets [line items]    
Total liquidity portfolio 270,204 77,041
Available for sale investments    
Disclosure of financial assets [line items]    
Total liquidity portfolio 4,010,272 2,394,323
Encumbered assets (net) [Member]    
Disclosure of financial assets [line items]    
Total liquidity portfolio [1] (380,055) (48,843)
Net cash [Memeber]    
Disclosure of financial assets [line items]    
Total liquidity portfolio [2] 2,384,323 149,321
Net Interbank deposits [Member]    
Disclosure of financial assets [line items]    
Total liquidity portfolio [3] $ (281,620) $ 967,095
[1] Assets encumbered through repurchase agreements are deduced from liquidity portfolio
[2] Cash minus reserve requirements. As is presented in Note 5 the reserve requirements are established by the monthly average reserves that the bank must maintain in accordance with regulation governing minimum reserves.
[3] Includes overnight deposits in Central Bank, domestic banks and foreign banks.