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Summary of Reconciliation of Provisions for Legal Proceedings (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Provisions For Legal Proceedings    
Opening Balance $ 2,018 $ 2,199
  Additions, net of reversals 396 190
  Use of provision 225 261
  Revaluation of existing proceedings and interest charges 161 19
  Others (5) 6
  Cumulative translation adjustment 123 75
Closing Balance $ 2,468 $ 2,228