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Information by operating segment (Details 1) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 3,138 $ 3,249 $ 6,500 $ 6,173
Operating segments [member] | Exploration And Production [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 2,326 2,489 4,856 4,704
Operating segments [member] | Refining Transportation And Marketing [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 637 601 1,285 1,159
Operating segments [member] | Gas And Power [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 141 130 294 254
Operating segments [member] | Corporate And Other Business [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 34 $ 29 $ 65 $ 56