v3.26.1
Analysis of replacement cost profit (loss) before interest and tax and reconciliation to profit (loss) before taxation (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation, Before Adjustments $ 9,811 $ 4,580 $ 14,117 $ 8,807
Replacement Cost Profit (Loss) Before Interest And Taxation 9,811 4,610 14,138 8,850
Profit (loss) from operating activities 8,941 4,056 17,427 8,455
Finance costs 1,175 1,229 2,350 2,550
Interest Income (Expense) Relating To Pensions And Other Post-Retirement Benefits (55) (56) (109) (108)
Profit (loss) before tax 7,821 2,883 15,186 6,013
UNITED STATES        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation 3,727 1,417 5,248 2,950
Non-US        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation 6,084 3,193 8,890 5,900
gas & low carbon energy        
Disclosure of operating segments [line items]        
Inventory Holding Gains (Losses) 0 0 0 0
oil production & operations        
Disclosure of operating segments [line items]        
Inventory Holding Gains (Losses) (1) (2) 6 5
customers & products        
Disclosure of operating segments [line items]        
Inventory Holding Gains (Losses) (869) (552) 3,283 (400)
Operating segments [member] | gas & low carbon energy        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation, Before Adjustments 1,564 1,047 2,618 2,405
Operating segments [member] | oil production & operations        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation, Before Adjustments 3,397 1,916 5,052 4,704
Operating segments [member] | customers & products        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation, Before Adjustments 5,100 972 7,552 1,075
Other Business And Corporate, Non-Segment | Other Business And Corporate, Non-Segment        
Disclosure of operating segments [line items]        
Replacement Cost Profit (Loss) Before Interest And Taxation, Before Adjustments (250) 645 (1,105) 623
Consolidation adjustments and eliminations        
Disclosure of operating segments [line items]        
Consolidation adjustment - UPII $ 0 $ 30 $ 21 $ 43