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Provision for decommissioning costs (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Provision For Decommissioning Costs    
Opening balance $ 23,203 $ 18,600
Adjustment to provision 9,373 3,821
Transfers related to liabilities held for sale (407) (339)
Use of provisions (1,464) (1,227)
Interest accrued 970 837
Others 26 (8)
Translation adjustment (5,498) 1,519
Closing balance $ 26,203 $ 23,203