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Saving Accounts and Time Deposits (Tables)
 12 Months Ended
Dec. 31, 2021
Disclosure of deposits from customers [text block] [Abstract]  
Schedule of saving accounts and time deposits
   2020   2021 
   MCh$   MCh$ 
Time deposits   8,442,536    8,319,165 
Term savings accounts   342,550    448,257 
Other term balances payable   114,455    372,584 
Total   8,899,541    9,140,006