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Taxes - Summary of Components of Income Tax Expense (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Major components of tax expense (income) [abstract]      
Income tax expense $ 814 $ 653 $ 2,912
Tax expense 723 1,551 2,599
Petroleum Resource Rent Tax [member]      
Major components of tax expense (income) [abstract]      
Current tax expense 396 367 501
Deferred tax (benefit)/expense (487) 531 (814)
Income tax expense (91) 898 (313)
Income Tax [Member]      
Major components of tax expense (income) [abstract]      
Current tax expense 1,420 1,872 2,256
Deferred tax (benefit)/expense (484) (1,255) 701
Current tax (benefit)/expense (177) 14 (276)
Deferred tax expense 55 22 231
Income tax expense $ 814 $ 653 $ 2,912