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Information by operating segment (Details 2) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 3,249 $ 3,460 $ 6,173 $ 6,630
Operating segments [member] | Exploration And Production [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 2,489 2,788 4,704 5,258
Operating segments [member] | Refining Transportation And Marketing [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 601 542 1,159 1,114
Operating segments [member] | Gas And Power [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization 130 99 254 207
Operating segments [member] | Corporate And Other Business [Member]        
IfrsStatementLineItems [Line Items]        
Amount of depreciation, depletion and amortization $ 29 $ 31 $ 56 $ 51