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Other Operating Expenses (Tables)
 12 Months Ended
Dec. 31, 2019
Other Operating Expenses [abstract]  
Schedule of other operating expenses

   2017   2018   2019 
   MCh$   MCh$   MCh$ 
Provisions and expenses for assets received in lieu of payment            
Provisions for assets received in lieu of payment   2,307    3,930    3,246 
Expenses to maintain assets received in lieu of payment   791    1,749    1,225 
Subtotal   3,098    5,679    4,471 
                
Provisions for contingencies               
Country risk provisions   —    —    — 
Other provisions   —    3    33 
Subtotal   —    3    33 
                
Other expenses               
Write-offs for operating risks   6,360    11,378    5,561 
Leasings operational expenses   10,152    4,504    5,111 
Card administration   2,890    2,640    2,490 
Correspondent banks   857    882    1,569 
Expenses for charge-off leased assets recoveries   1,115    2,287    1,072 
Others   1,396    2,213    3,543 
Subtotal   22,770    23,904    19,346 
                
Total   25,868    29,586    23,850