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Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk - Issued foreign letters of credit [Member] - CLP ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal $ 343,649 $ 316,916
Substandard 14
Non-complying
Total 343,663 316,916
Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 298,841 149,753
Substandard
Non-complying
Total 298,841 149,753
Stage 1 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 1,881 1,308
Substandard
Non-complying
Total 1,881 1,308
Stage 2 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 42,927 165,538
Substandard 14
Non-complying
Total 42,941 165,538
Stage 2 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 317
Substandard
Non-complying
Total 317
Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal
Substandard
Non-complying
Total
Stage 3 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal
Substandard
Non-complying
Total