v3.25.4
Goodwill and other intangible assets - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about intangible assets [line items]      
Goodwill $ 15,662 $ 16,032  
Cost      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 18,015 18,282 $ 18,542
Additions 289 155  
Integrated Gas      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 5,200 4,900  
Upstream      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 4,700 5,300  
Marketing      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 4,400 $ 4,300  
BG Group Plc | Integrated Gas      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 4,945    
BG Group Plc | Upstream      
Disclosure of detailed information about intangible assets [line items]      
Goodwill 4,672    
BG Group Plc | Oil Products      
Disclosure of detailed information about intangible assets [line items]      
Goodwill $ 1,605