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Risk Management (Details 11) - Credit Risk [Member] - CLP ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of financial assets [line items]    
Total $ 26,258,710 $ 24,368,176
Properties/Mortgages [Member] | Non-impaired Financial Assets [Member]    
Disclosure of financial assets [line items]    
Total 23,371,510 22,047,354
Properties/Mortgages [Member] | Impaired Financial Assets [Member]    
Disclosure of financial assets [line items]    
Total 101,456 119,181
Investments & Others [Member] | Non-impaired Financial Assets [Member]    
Disclosure of financial assets [line items]    
Total 2,785,219 2,200,776
Investments & Others [Member] | Impaired Financial Assets [Member]    
Disclosure of financial assets [line items]    
Total $ 525 $ 865