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Information by operating segment (Details 2) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 3,697 $ 3,138 $ 6,944 $ 6,500
Operating segments [member] | Exploration And Production [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 2,836 2,326 5,317 4,856
Operating segments [member] | Refining Transportation And Marketing [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 691 637 1,288 1,285
Operating segments [member] | Gas And Power [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 131 141 264 294
Operating segments [member] | Corporate And Other Business [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 39 $ 34 $ 75 $ 65