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Financial Items (Tables)
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Summary of Financial Items
The detail of financial income and other items, net in 2021, 2020 and 2019 was as follows:
 
 
  
2021
 
 
2020
 
 
2019
 
Effects of amortized cost on assets and liabilities and others, net
1
    $ (28 )      (89 )      (20 ) 
Net interest cost of pension liabilities (note 20)
      (31 )      (33 )      (39 ) 
Results from financial instruments, net (notes 15.2 and 18.4)
      (6 )      (17 )      (1 ) 
Foreign exchange results
      (37 )      (3 )      (23 ) 
Financial income
      22       20       18  
Others
      2       4       —    
      
 
    
 
 
    
 
 
  
     $ (78 )      (118 )      (65 )