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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) - ARS ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Argentina [member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment $ 4,904,375 $ 3,889,483 $ 2,693,690
Support equipment and facilities 168,749 113,563 80,012
Drilling and work in progress 199,964 159,614 142,122
Unproved oil and gas properties 22,628 20,044 30,012
Total capitalized costs 5,295,716 4,182,704 2,945,836
Accumulated depreciation and valuation allowances (4,277,053) (3,306,031) (2,239,487)
Net capitalized costs 1,018,663 876,673 706,349
Other foreign [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment   3,052 2,033
Total capitalized costs   3,052 2,033
Accumulated depreciation and valuation allowances   (2,827) (1,973)
Net capitalized costs   225 60
Worldwide [member]      
Disclosure of information about consolidated structured entities [Line Items]      
Mineral property, wells and related equipment 4,904,375 3,892,535 2,695,723
Support equipment and facilities 168,749 113,563 80,012
Drilling and work in progress 199,964 159,614 142,122
Unproved oil and gas properties 22,628 20,044 30,012
Total capitalized costs 5,295,716 4,185,756 2,947,869
Accumulated depreciation and valuation allowances (4,277,053) (3,308,858) (2,241,460)
Net capitalized costs $ 1,018,663 $ 876,898 $ 706,409