v3.25.2
Emissions schemes and related environmental programmes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans $ 3,946 $ 3,626 $ 4,005
At January 1 10,253    
At December 31 9,480 10,253  
Current (9,838) (9,887)  
Non-current (2,990) (2,835)  
Emissions instruments      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
At January 1 2,391 2,201  
Additions 3,862 3,837  
Settlements (3,607) (3,647)  
Other movements (132) 0  
At December 31 2,514 2,391 2,201
Current (3,518) (3,853) (4,232)
Non-current (417) (193) (478)
Total obligations (3,935) (4,046) (4,710)
Additions (4,644) (4,434)  
Additions covered by government grants 675 762  
Settlements 3,931 4,357  
Other movements 149 (21)  
Total increase (decrease) 111 664  
ETS and related schemes      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 381 493 493
At January 1 441 440  
Additions 299 396  
Settlements (392) (413)  
Other movements (47) 18  
At December 31 301 441 440
Current (388) (498) (458)
Non-current 0 0 0
Total obligations (388) (498) (458)
Additions (1,051) (1,244)  
Additions covered by government grants 675 762  
Settlements 453 479  
Other movements 33 (37)  
Total increase (decrease) 110 (40)  
Biofuels      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 2,942 2,581 2,918
At January 1 1,805 1,601  
Additions 3,146 2,955  
Settlements (2,804) (2,783)  
Other movements (65) 32  
At December 31 2,082 1,805 1,601
Current (2,594) (3,012) (3,424)
Non-current (408) (105) (422)
Total obligations (3,002) (3,117) (3,846)
Additions (2,981) (2,593)  
Settlements 3,011 3,386  
Other movements 85 (64)  
Total increase (decrease) 115 729  
Renewable power      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 623 552 594
At January 1 145 160  
Additions 417 486  
Settlements (411) (451)  
Other movements (20) (50)  
At December 31 131 145 160
Current (536) (343) (350)
Non-current (9) (88) (56)
Total obligations (545) (431) $ (406)
Additions (612) (597)  
Settlements 467 492  
Other movements 31 80  
Total increase (decrease) $ (114) $ (25)