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Contingent Transactions (Tables)
12 Months Ended
Dec. 31, 2020
Statement [LineItems]  
Summary of Contingent Transactions
As of December 31, 2020 and 2019, the Bank maintains the following maximum exposure to credit risk related to this kind of transactions:
 
   12/31/2020   12/31/2019 
Undrawn commitments of credit cards and checking accounts
   95,220,298    124,364,340 
Guarantees granted
   1,282,770    2,340,277 
Letters of credit
   888,664    607,827 
Overdraft and unused agreed commitments
   518,606    1,432,695 
  
 
 
   
 
 
 
   97,910,338    128,745,139 
  
 
 
   
 
 
 
Less: Allowance for ECL (1)
   (23,200   (23,514
  
 
 
   
 
 
 
Total
   97,887,138    128,721,625 
  
 
 
   
 
 
 
 
(1)
It includes high grade credit risk exposures in stage 1. During 2020 and 2019, there were no transfers between stages. See also note 22.