v3.25.2
Taxation - Summary of Deferred Tax (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance $ 19,623 $ 23,589
Credit/(charge) to income 1,193 (2,060)
Currency translation differences (338) 190
Other comprehensive income (83) 122
Other movements (1,084) (2,218)
Deferred tax asset, Ending balance 19,311 19,623
Deferred tax liability, Beginning Balance (28,516) (31,960)
(Charge)/credit to income (888) 1,713
Currency translation differences 685 54
Other comprehensive income (284) (96)
Other movements 3,044 1,773
Deferred tax liability, Ending Balance (25,959) (28,516)
Deferred tax liability (asset) (6,648) (8,893)
Deferred tax asset 6,857 6,454
Deferred tax liability (13,505) (15,347)
Decommissioning and other provisions    
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance 7,577 6,049
Credit/(charge) to income 528 61
Currency translation differences (94) 89
Other comprehensive income 0 0
Other movements (1,170) 1,378
Deferred tax asset, Ending balance 6,841 7,577
Property, plant and equipment    
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance 1,584 4,290
Credit/(charge) to income 254 (680)
Currency translation differences (7) 18
Other comprehensive income 0 0
Other movements (17) (2,044)
Deferred tax asset, Ending balance 1,814 1,584
Deferred tax liability, Beginning Balance (21,996) (24,818)
(Charge)/credit to income (799) 2,109
Currency translation differences 231 (173)
Other comprehensive income (2) (3)
Other movements 3,652 889
Deferred tax liability, Ending Balance (18,914) (21,996)
Tax losses and credits carried forward    
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance 4,280 6,446
Credit/(charge) to income (388) (2,025)
Currency translation differences (129) 66
Other comprehensive income 33 (5)
Other movements (229) (202)
Deferred tax asset, Ending balance 3,567 4,280
Retirement benefits    
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance 1,750 1,977
Credit/(charge) to income 0 27
Currency translation differences (77) 28
Other comprehensive income (162) 104
Other movements 343 (386)
Deferred tax asset, Ending balance 1,854 1,750
Deferred tax liability, Beginning Balance (2,880) (3,189)
(Charge)/credit to income (138) (228)
Currency translation differences 386 227
Other comprehensive income (267) (90)
Other movements (351) 400
Deferred tax liability, Ending Balance (3,250) (2,880)
Other    
Reconciliation of changes in deferred tax liability (asset) [abstract]    
Deferred tax asset, Beginning balance 4,432 4,827
Credit/(charge) to income 799 557
Currency translation differences (31) (11)
Other comprehensive income 46 23
Other movements (11) (964)
Deferred tax asset, Ending balance 5,235 4,432
Deferred tax liability, Beginning Balance (3,640) (3,953)
(Charge)/credit to income 49 (168)
Currency translation differences 68 0
Other comprehensive income (15) (3)
Other movements (257) 484
Deferred tax liability, Ending Balance $ (3,795) $ (3,640)