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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, 2022
Dec. 31, 2021
Dec. 31, 2020
Argentina [member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment $ 49,698 $ 47,792 $ 46,276
Support equipment and facilities 1,827 1,644 1,351
Drilling and work in progress 2,638 1,949 1,899
Unproved oil and gas properties 173 221 238
Total capitalized costs 54,336 51,606 49,764
Accumulated depreciation and valuation allowances (43,440) (41,679) (39,334)
Net capitalized costs 10,896 9,927 10,430
Other foreign [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment     37
Total capitalized costs     37
Accumulated depreciation and valuation allowances     (34)
Net capitalized costs     3
Worldwide [member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment 49,698 47,792 46,313
Support equipment and facilities 1,827 1,644 1,351
Drilling and work in progress 2,638 1,949 1,899
Unproved oil and gas properties 173 221 238
Total capitalized costs 54,336 51,606 49,801
Accumulated depreciation and valuation allowances (43,440) (41,679) (39,368)
Net capitalized costs $ 10,896 $ 9,927 $ 10,433