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Provisions for Expected Credit Losses (Details) - Schedule of changes in provisions for loan losses - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Provisions established:      
Individual provisions $ (1,001) $ (226,043) $ (20,611)
Group provisions (193,449) (367,474) (362,619)
Provisions established net (194,450) (593,517) (383,230)
Provisions released:      
Individual provisions 104,871 4,652 3,654
Group provisions  
Provisions released net 104,871 4,652 3,654
Recovery of written-off assets 70,407 41,759 47,975
Provisions net allowances for credit risk (19,172) (547,106) (331,601)
Loans and advance to banks [member]      
Provisions established:      
Individual provisions   (348)
Group provisions    
Provisions established net   (348)
Provisions released:      
Individual provisions 377 902
Group provisions  
Provisions released net 377 902
Recovery of written-off assets    
Provisions net allowances for credit risk 377 (348) 902
Commercial loans [member]      
Provisions established:      
Individual provisions   (207,611) (17,143)
Group provisions (32,551) (88,278) (64,492)
Provisions established net (32,551) (295,889) (81,635)
Provisions released:      
Individual provisions 95,488
Group provisions  
Provisions released net 95,488
Recovery of written-off assets 15,480 8,599 12,253
Provisions net allowances for credit risk 78,417 (287,290) (69,382)
Mortgage loans [member]      
Provisions established:      
Individual provisions  
Group provisions (15,046) (4,607) (17,168)
Provisions established net (15,046) (4,607) (17,168)
Provisions released:      
Individual provisions  
Group provisions  
Provisions released net  
Recovery of written-off assets 7,922 3,377 5,114
Provisions net allowances for credit risk (7,124) (1,230) (12,054)
Consumer loans [member]      
Provisions established:      
Individual provisions  
Group provisions (141,978) (219,463) (278,252)
Provisions established net (141,978) (219,463) (278,252)
Provisions released:      
Individual provisions  
Group provisions  
Provisions released net  
Recovery of written-off assets 47,005 29,783 30,608
Provisions net allowances for credit risk (94,973) (189,680) (247,644)
Subtotal [member]      
Provisions established:      
Individual provisions   (207,611) (17,143)
Group provisions (189,575) (312,348) (359,912)
Provisions established net (189,575) (519,959) (377,055)
Provisions released:      
Individual provisions 95,488
Group provisions  
Provisions released net 95,488
Recovery of written-off assets 70,407 41,759 47,975
Provisions net allowances for credit risk (23,680) (478,200) (329,080)
Debt instruments at fair value through OCI [member]      
Provisions established:      
Individual provisions (1,001) (3,468)
Group provisions    
Provisions established net (1,001)   (3,468)
Provisions released:      
Individual provisions   4,652
Group provisions  
Provisions released net   4,652
Recovery of written-off assets    
Provisions net allowances for credit risk (1,001) 4,652 (3,468)
Contingent loan risks [member]      
Provisions established:      
Individual provisions   (18,084)
Group provisions (3,874) (55,126) (2,707)
Provisions established net (3,874) (73,210) (2,707)
Provisions released:      
Individual provisions 9,006 2,752
Group provisions  
Provisions released net 9,006 2,752
Recovery of written-off assets    
Provisions net allowances for credit risk $ 5,132 $ (73,210) $ 45