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Litigations (Tables)
 12 Months Ended
Dec. 31, 2022
Litigations  
Schedule of changes in provision for litigations
                 
  Tax litigation   Civil litigation   Labor litigation   Environmental litigation   Total of litigation provision
Balance at December 31, 2020 485   260   335   11   1,091
Additions and reversals, net 4   19   74   1   98
Payments (10)   (22)   (57)   (5)   (94)
Indexation and interest 10   45   32   -   87
Acquisition of NLC -   2   8   -   10
Discontinued operations - Coal -   (2)   (8)   -   (10)
Translation adjustment (33)   (18)   (26)   -   (77)
Balance at December 31, 2021 456   284   358   7   1,105
Current liabilities 14   22   56   1   93
Non-current liabilities 442   262   302   6   1,012
Balance at December 31, 2021 456   284   358   7   1,105
Additions and reversals, net 40   38   67   8   153
Payments (40)   (67)   (56)   (1)   (164)
Indexation and interest 89   26   19   -   134
Transfer to held for sale (1)   (7)   (2)   -   (10)
Translation adjustment 32   17   25   -   74
Balance at December 31, 2022 576   291   411   14   1,292
Current liabilities 18   21   65   2   106
Non-current liabilities 558   270   346   12   1,186
Balance at December 31, 2022 576   291   411   14   1,292
Schedule of contingent liabilities
       
    December 31, 2022   December 31, 2021
Tax litigations   6,590   5,177
Civil litigations   1,270   1,503
Labor litigations   569   516
Environmental litigations   1,102   954
Total   9,531   8,150
Schedule of judicial deposits
       
    December 31, 2022   December 31, 2021
Tax litigations   945   957
Civil litigations   123   100
Labor litigations   134   141
Environmental litigations   13   22
Total   1,215   1,220