v3.25.2
Emissions schemes and related environmental programmes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans $ 3,626 $ 4,005 $ 3,395
At January 1 9,662    
At December 31 10,253 9,662  
Current (9,887) (10,059)  
Non-current (2,835) (3,148)  
Emissions instruments      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
At January 1 2,201 2,747  
Additions 3,837 2,338  
Settlements (3,647) (2,796)  
Other movements 0 (88)  
At December 31 2,391 2,201 2,747
Current (3,853) (4,232) (3,805)
Non-current (193) (478) (211)
Total obligations (4,046) (4,710) (4,016)
Additions (4,434) (4,790)  
Additions covered by government grants 762 776  
Settlements 4,357 3,247  
Other movements (21) 73  
Total increase (decrease) 664 (694)  
ETS and related schemes      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 493 493 331
At January 1 440 284  
Additions 396 385  
Settlements (413) (256)  
Other movements 18 27  
At December 31 441 440 284
Current (498) (458) (270)
Non-current 0 0 0
Total obligations (498) (458) (270)
Additions (1,244) (1,237)  
Additions covered by government grants 762 776  
Settlements 479 292  
Other movements (37) (19)  
Total increase (decrease) (40) (188)  
Biofuels      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 2,581 2,918 2,609
At January 1 1,601 2,362  
Additions 2,955 1,485  
Settlements (2,783) (2,142)  
Other movements 32 (104)  
At December 31 1,805 1,601 2,362
Current (3,012) (3,424) (3,262)
Non-current (105) (422) (182)
Total obligations (3,117) (3,846) (3,444)
Additions (2,593) (2,916)  
Settlements 3,386 2,456  
Other movements (64) 58  
Total increase (decrease) 729 (402)  
Renewable power      
Disclosure Of Emissions And Related Environmental Schemes [Line Items]      
Cost of environmental schemes and related environmental plans 552 594 455
At January 1 160 101  
Additions 486 468  
Settlements (451) (398)  
Other movements (50) (11)  
At December 31 145 160 101
Current (343) (350) (273)
Non-current (88) (56) (29)
Total obligations (431) (406) $ (302)
Additions (597) (637)  
Settlements 492 499  
Other movements 80 34  
Total increase (decrease) $ (25) $ (104)