v3.26.3
Disposal of assets and other transactions (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets classified as held for sale    
Property, plant and equipment $ 27 $ 25
Total 27 25
Liabilities on assets classified as held for sale    
Provision for decommissioning costs 112 103
Total 112 $ 103
Exploration And Production Segment [Member]    
Assets classified as held for sale    
Property, plant and equipment 27  
Total 27  
Liabilities on assets classified as held for sale    
Provision for decommissioning costs 112  
Total $ 112