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Losses on derecognition of financial assets not measured at fair value through profit or loss, net
 12 Months Ended
Dec. 31, 2020
Gain Loss Arising From Derecognition Of Financial Assets [Abstract]  
Losses on derecognition of financial assets not measured at fair value through profit or loss, net
32. Losses on derecognition of financial assets not measured at fair value through profit or loss, net
 
   
2020
   
2019
   
2018
 
Loss from sale of government securities
   (2,308,809)    (79,314)    (284,476) 
Loss from sale of private securities
   (1,049)    (1,560)    (1,896) 
   
 
 
   
 
 
   
 
 
 
TOTAL
  
 
  (2,309,858
) 
  
 
      (80,874
) 
  
 
      (286,372
)