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Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Changes in YPF's Net Proved Reserves (Parenthetical) (Detail)
 12 Months Ended
Dec. 31, 2020
Bbls
MMBbls
Bcf
Dec. 31, 2019
MMBbls
Bcf
Dec. 31, 2018
MMBbls
Bcf
Disclosure of information about consolidated structured entities [Line Items]      
Estimated crude oil production 11 12 12
Estimated proved crude oil reserves 70 88 83
Estimated natural gas liquids production 1 1 2
Estimated proved natural gas liquids reserves 7 6 8
Estimated natural gas production | Bcf 53 60 61
Estimated Proved oil equivalent reserves 120 140 143
Consolidated entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Estimated proved natural gas reserves | Bcf 245 259 288
Estimated barrel of oil equivalent production 22 24 24
Consolidated and equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Estimated proved natural gas reserves | Bcf 290 321 349
Oil equivalent [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Natural gas converted to barrel of oil equivalent | Bbls 5,615