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Net Foreign Exchange Gain (Loss) (Tables)
 12 Months Ended
Dec. 31, 2019
Net Foreign Exchange Gain (Loss) [Abstract]  
Schedule of net foreign exchange income

For the years ended December 31, 2019, 2018 and 2017 net foreign exchange income is as follows:

 

   For the years ended December 31, 
   2019   2018   2017 
   MCh$   MCh$   MCh$ 
             
Net foreign exchange gain (loss)            
Net profit (loss) from currency exchange differences   (89,893)   (212,618)   113,115 
Hedging derivatives   362,374    252,275    22,933 
Income from assets indexed to foreign currency   7,376    12,251    (9,190)
Income from liabilities indexed to foreign currency   -    -    98 
Total   279,857    51,908    126,956