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Risk Management (Details 18) - Capital Risk [Member] - CLP ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of risk management strategy related to hedge accounting [line items]    
Basic capital $ 3,390,823 $ 3,239,546
Regulatory capital $ 4,304,401 $ 4,101,664
Basic capital 6.96% 7.72%
Regulatory capital 12.86% 13.40%