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Other Liabilities
12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Other Liabilities
 
21.
OTHER LIABILITIES
   
2020
   
2019
   
2018
 
   
Noncurrent
   
Current
   
Noncurrent
   
Current
   
Noncurrent
   
Current
 
Extension of concessions
   710    711    529    593    348    436 
Liabilities for contractual claims
(1)
   2,250    7,250    170    59    175    41 
Miscellaneous
   1    1,101    4    658    26    245 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   2,961    9,062    703    1,310    549    722 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
(1)
See Notes 15 and 33.f.