v3.26.1
Non-current assets held for sale (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Assets and liabilities held for sale [Line Items]    
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners $ 5,791 $ 6,347
Liabilities included in disposal groups classified as held for sale 2,084 1,594
Goodwill $ 9,639 $ 10,300
Stonepeak | Castrol [Member]    
Assets and liabilities held for sale [Line Items]    
Proportion of ownership interest in subsidiary 65.00%  
customers & products | Castrol [Member]    
Assets and liabilities held for sale [Line Items]    
Proportion of ownership interest in associate 35.00%  
Lightsource bp [Member] | gas & low carbon energy    
Assets and liabilities held for sale [Line Items]    
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners $ 789  
Liabilities included in disposal groups classified as held for sale 496  
Gelsenkirchen [Member] | customers & products    
Assets and liabilities held for sale [Line Items]    
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners 549  
Liabilities included in disposal groups classified as held for sale 1,260  
Castrol [Member] | customers & products    
Assets and liabilities held for sale [Line Items]    
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners 4,453  
Liabilities included in disposal groups classified as held for sale 328  
Goodwill 2,713  
Castrol [Member] | customers & products | Estimates of present value of future cash flows [member]    
Assets and liabilities held for sale [Line Items]    
Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations $ 6,000