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Consortia (partnerships) in E&P activities (Details 1) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Consortia Partnerships In Ep Activities    
Opening balance $ 462 $ 407
Additions/(Write-offs) on PP&E 230 17
Payments made (1) (56)
Other income and expenses 16 62
Translation adjustments (130) 32
Closing balance $ 577 $ 462