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Property, plant and equipment (Details 3) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Notes and other explanatory information [abstract]    
Opening balance $ 407 $ 364
Additions/(Write-offs) on PP&E 5 (37)
Other income and expenses 23 12
Translation adjustments 35 22
Closing balance $ 470 $ 361