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Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk - Warranty by endorsement and sureties [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 $ 218,093 $ 280,462
Substandard 356 376
Non—complying 5,630
Total 224,079 280,838
Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 186,051 249,306
Substandard
Non—complying
Total 186,051 249,306
Stage 1 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 131 395
Substandard
Non—complying
Total 131 395
Stage 2 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal 31,911 30,761
Substandard 356 376
Non—complying
Total 32,267 31,137
Stage 2 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal
Substandard
Non—complying
Total
Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal
Substandard
Non—complying 5,630
Total 5,630
Stage 3 - Group [Member]    
Provisions (Details) - Schedule of credit quality and the maximum exposure to credit risk [Line Items]    
Normal
Substandard
Non—complying
Total