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RISK MANAGEMENT (Details 22) - Capital Risk [Member] - CLP ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Disclosure of risk management strategy related to hedge accounting [line items]    
Basic capital $ 3,239,546 $ 3,066,180
Regulatory capital $ 4,101,664 $ 3,881,252
Basic capital 7.72% 7.92%
Regulatory capital 13.40% 13.91%