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Expected Credit Losses (Tables)
 12 Months Ended
Dec. 31, 2022
Expected Credit Losses [Abstract]  
Schedule of composition
   2022   2021   2020 
   MCh$   MCh$   MCh$ 
             
Expense of allowances established for credit risk   418,416    93,710    520,307 
Expense of provisions for contingent loans   51,445    (5,132)   73,210 
Recovery of written-off credits   (65,740)   (70,407)   (41,759)
Impairments for credit risk from financial assets at fair value through other comprehensive income   8,009    1,001    (4,652)
Total   412,130    19,172    547,106 

 
Schedule of expense of provisions constituted for credit risk and expense for credit losses
   Expense of provisions constituted in the year 
   Evaluation     
As of December 31, 2022  Individual   Group   Total 
   MCh$   MCh$   MCh$ 
Loans and advances to Banks            
Allowances established   1,792    
—
    1,792 
Allowances released   
—
    
—
    
—
 
Subtotal   1,792    
—
    1,792 
Commercial loans               
Allowances established   23,542    67,256    90,798 
Allowances released   
—
    
—
    
—
 
Subtotal   23,542    67,256    90,798 
Residential mortgage loans               
Allowances established   
—
    22,706    22,706 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    22,706    22,706 
Consumer loans               
Allowances established   
—
    303,120    303,120 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    303,120    303,120 
Expense of allowances established for credit risk   25,334    393,082    418,416 
                
Contingent loans               
Loans and advances to Banks               
Commercial loans   
 
         30,645 
Consumer loans   
         20,800 
Expenses of provisions for contingent loans   
 
         51,445 
                
Impairments for credit risk from financial assets at fair value through other comprehensive income             8,009 
                
Recovery of written-off credits               
Loans and advances to Banks             
—
 
Commercial loans             (26,554)
Residential mortgage loans             (10,481)
Consumer loans             (28,705)
Subtotal             (65,740)
Total Expected Credit Losses             412,130 

 

   Expense of provisions constituted in the year 
   Evaluation     
As of December 31, 2021  Individual   Group   Total 
   MCh$   MCh$   MCh$ 
Loans and advances to Banks            
Allowances established   
—
    
—
    
—
 
Allowances released   (377)   
—
    (377)
Subtotal   (377)   
—
    (377)
Commercial loans               
Allowances established   
—
    50,433    50,433 
Allowances released   (113,370)   
—
    (113,370)
Subtotal   (113,370)   50,433    (62,937)
Residential mortgage loans               
Allowances established   
—
    15,046    15,046 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    15,046    15,046 
Consumer loans               
Allowances established   
—
    141,978    141,978 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    141,978    141,978 
Expense of allowances established for credit risk   (113,747)   207,457    93,710 
                
Contingent loans               
Loans and advances to Banks             
—
 
Commercial loans             3,784 
Consumer loans             (8,916)
Expenses of provisions for contingent loans             (5,132)
                
Impairments for credit risk from financial assets at fair value through other comprehensive income             1,001 
                
Recovery of written-off credits               
Loans and advances to Banks             
—
 
Commercial loans             (15,480)
Residential mortgage loans             (7,922)
Consumer loans             (47,005)
Subtotal             (70,407)
Total Expected Credit Losses             19,172 

 

   Expense of provisions constituted in the year 
As of December 31, 2020  Evaluation    
   Individual   Group   Total 
   MCh$   MCh$   MCh$ 
Loans and advances to Banks               
Allowances established   348    
—
    348 
Allowances released   
—
    
—
    
—
 
Subtotal   348    
—
    348 
Commercial loans               
Allowances established   207,611    88,278    295,889 
Allowances released   
—
    
—
    
—
 
Subtotal   207,611    88,278    295,889 
Residential mortgage loans               
Allowances established   
—
    4,607    4,607 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    4,607    4,607 
Consumer loans               
Allowances established   
—
    219,463    219,463 
Allowances released   
—
    
—
    
—
 
Subtotal   
—
    219,463    219,463 
Expense of allowances established for credit risk   207,959    312,348    520,307 
                
Contingent loans               
Loans and advances to Banks             
—
 
Commercial loans             11,664 
Consumer loans             61,546 
Expenses of provisions for contingent loans             73,210 
                
Impairments for credit risk from financial assets at fair value through other comprehensive income             (4,652)
                
Recovery of written-off credits               
Loans and advances to Banks             
—
 
Commercial loans             (8,599)
Residential mortgage loans             (3,377)
Consumer loans             (29,783)
Subtotal             (41,759)
Total Expected Credit Losses             547,106