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Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Capitalized Costs, Along with the related Accumulated Depreciation and Allowances (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Argentina [member]      
Disclosure of information about consolidated entities [line items]      
Mineral property, wells and related equipment $ 53,052 $ 49,698 $ 47,792
Support equipment and facilities 2,257 1,827 1,644
Drilling and work in progress 3,774 2,638 1,949
Unproved oil and gas properties 264 173 221
Total capitalized costs 59,347 54,336 51,606
Accumulated depreciation and valuation allowances (48,382) (43,440) (41,679)
Net capitalized costs 10,965 10,896 9,927
Worldwide [member]      
Disclosure of information about consolidated entities [line items]      
Mineral property, wells and related equipment 53,052 49,698 47,792
Support equipment and facilities 2,257 1,827 1,644
Drilling and work in progress 3,774 2,638 1,949
Unproved oil and gas properties 264 173 221
Total capitalized costs 59,347 54,336 51,606
Accumulated depreciation and valuation allowances (48,382) (43,440) (41,679)
Net capitalized costs $ 10,965 $ 10,896 $ 9,927