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Saving Accounts and Time Deposits (Tables)
 12 Months Ended
Dec. 31, 2019
Deposits from customers [abstract]  
Schedule of saving accounts and time deposits

   2018   2019 
   MCh$   MCh$ 
Time deposits   10,343,922    10,537,614 
Term savings accounts   224,303    239,850 
Other term balances payable   87,949    79,154 
Total   10,656,174    10,856,618