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RISK MANAGEMENT (Details 15) - Credit Risk [Member] - CLP ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Disclosure of financial assets [line items]    
Total $ 24,368,176 $ 21,770,452
Normal Portfolio [Member] | Properties/Mortgages [Member]    
Disclosure of financial assets [line items]    
Total 22,047,354 19,508,151
Normal Portfolio [Member] | Investments & Others [Member]    
Disclosure of financial assets [line items]    
Total 2,200,776 2,108,962
Impaired Portfolio [Member] | Properties/Mortgages [Member]    
Disclosure of financial assets [line items]    
Total 119,181 152,252
Impaired Portfolio [Member] | Investments & Others [Member]    
Disclosure of financial assets [line items]    
Total $ 865 $ 1,087