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Provision for decommissioning costs (Details 1) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Provision For Decommissioning Costs    
Opening balance $ 23,202 $ 18,600
Adjustment to provision 74 19
Transfers related to liabilities held for sale (332)  
Use of provisions (694) (458)
Interest accrued 516 414
Others 15 (8)
Translation adjustment (2,967) 1,536
Closing balance $ 19,814 $ 20,103