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Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Changes in YPF's Net Proved Reserves (Detail) | 12 Months Ended
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Dec. 31, 2020 MMBbls | Dec. 31, 2020 Bcf | Dec. 31, 2019 MMBbls | Dec. 31, 2019 bbl | Dec. 31, 2019 Bcf | Dec. 31, 2019 MMBoe | Dec. 31, 2018 MMBbls | Dec. 31, 2018 Bcf | Dec. 31, 2018 MMBoe
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Improved recovery | MMBoe |  |  |  |  |  | 8 |  |  | 15
Worldwide [member] | Consolidated entities [Member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 613 |  | 582 |  |  |  | 422 |  |
Revisions of previous estimates | (92) |  | 21 |  |  |  | 126 |  |
Extensions and discoveries | 47 |  | 86 |  |  |  | 103 |  |
Improved recovery |  |  | 8 |  |  |  | 15 |  |
Sale of minerals in place | (9) |  | (1) |  |  |  | (1) |  |
Production for the year | (76) |  | (83) |  |  |  | (83) |  |
Ending balance | 483 |  | 613 |  |  |  | 582 |  |
Beginning balance | 60 |  | 56 |  |  |  | 58 |  |
Revisions of previous estimates | 8 |  | 4 |  |  |  | (1) |  |
Extensions and discoveries | 9 |  | 14 |  |  |  | 13 |  |
Sale of minerals in place | (1) |  |  |  |  |  |  |  |
Production for the year | (13) |  | (14) |  |  |  | (14) |  |
Ending balance | 63 |  | 60 |  |  |  | 56 |  |
Beginning balance | Bcf |  | 2,241 |  |  | 2,481 |  |  | 2,520 |
Revisions of previous estimates | Bcf |  | 136 |  |  | (104) |  |  | 178 |
Extensions and discoveries | Bcf |  | 199 |  |  | 384 |  |  | 329 |
Sale of minerals in place | Bcf |  | (6) |  |  | (8) |  |  | (4) |
Production for the year | Bcf |  | (460) |  |  | (512) |  |  | (542) |
Ending balance | Bcf |  | 2,110 |  |  | 2,241 |  |  | 2,481 |
Beginning balance | 1,073 |  | 1,080 |  |  |  | 929 |  |
Revisions of previous estimates | (61) |  | 7 |  |  |  | 157 |  |
Extensions and discoveries | 92 |  | 169 |  |  |  | 174 |  |
Improved recovery |  |  | 8 |  |  |  | 15 |  |
Sale of minerals in place | (11) |  | (3) |  |  |  | (2) |  |
Production for the year | (171) |  | (188) |  |  |  | (193) |  |
Ending balance | 922 |  | 1,073 |  |  |  | 1,080 |  |
Worldwide [member] | Consolidated entities [Member] | Proved reserves, developed [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 301 |  | 339 |  |  |  | 286 |  |
Ending balance | 229 |  | 301 |  |  |  | 339 |  |
Beginning balance | 38 |  | 41 |  |  |  | 47 |  |
Ending balance | 32 |  | 38 |  |  |  | 41 |  |
Beginning balance | Bcf |  | 1,743 |  |  | 1,915 |  |  | 1,850 |
Ending balance | Bcf |  | 1,486 |  |  | 1,743 |  |  | 1,915 |
Beginning balance | 650 |  | 722 |  |  |  | 663 |  |
Ending balance | 526 |  | 650 |  |  |  | 722 |  |
Worldwide [member] | Consolidated entities [Member] | Proved reserves, undeveloped [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 312 |  | 243 |  |  |  | 136 |  |
Ending balance | 254 |  | 312 |  |  |  | 243 |  |
Beginning balance | 22 |  | 15 |  |  |  | 11 |  |
Ending balance | 31 |  | 22 |  |  |  | 15 |  |
Beginning balance | Bcf |  | 498 |  |  | 566 |  |  | 670 |
Ending balance | Bcf |  | 624 |  |  | 498 |  |  | 566 |
Beginning balance | 423 |  | 358 |  |  |  | 266 |  |
Ending balance | 396 |  | 423 |  |  |  | 358 |  |
Worldwide [member] | Consolidated and equity-accounted entities [Member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 613 |  | 582 | 582 |  |  | 422 |  |
Ending balance | 483 |  | 613 | 613 |  |  | 582 |  |
Beginning balance | 60 |  | 56 |  |  |  | 58 |  |
Ending balance | 63 |  | 60 |  |  |  | 56 |  |
Beginning balance | Bcf |  | 2,241 |  |  | 2,481 |  |  | 2,520 |
Ending balance | Bcf |  | 2,110 |  |  | 2,241 |  |  | 2,481 |
Beginning balance | 1,073 |  | 1,080 |  |  |  | 929 |  |
Ending balance | 922 |  | 1,073 |  |  |  | 1,080 |  |
Worldwide [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 301 |  | 339 | 339 |  |  | 286 |  |
Ending balance | 229 |  | 301 | 301 |  |  | 339 |  |
Beginning balance | 38 |  | 41 |  |  |  | 47 |  |
Ending balance | 32 |  | 38 |  |  |  | 41 |  |
Beginning balance | Bcf |  | 1,743 |  |  | 1,915 |  |  | 1,850 |
Ending balance | Bcf |  | 1,486 |  |  | 1,743 |  |  | 1,915 |
Beginning balance | 650 |  | 722 |  |  |  | 663 |  |
Ending balance | 526 |  | 650 |  |  |  | 722 |  |
Worldwide [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 312 |  | 243 | 243 |  |  | 136 |  |
Ending balance | 254 |  | 312 | 312 |  |  | 243 |  |
Beginning balance | 22 |  | 15 |  |  |  | 11 |  |
Ending balance | 31 |  | 22 |  |  |  | 15 |  |
Beginning balance | Bcf |  | 498 |  |  | 566 |  |  | 670 |
Ending balance | Bcf |  | 624 |  |  | 498 |  |  | 566 |
Beginning balance | 423 |  | 358 |  |  |  | 266 |  |
Ending balance | 396 |  | 423 |  |  |  | 358 |  |
Argentina [member] | Consolidated entities [Member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 613 |  | 582 |  |  |  | 422 |  |
Revisions of previous estimates | (92) |  | 21 |  |  |  | 126 |  |
Extensions and discoveries | 47 |  | 86 |  |  |  | 103 |  |
Improved recovery |  |  | 8 |  |  |  | 15 |  |
Sale of minerals in place | (9) |  | (1) |  |  |  | (1) |  |
Production for the year | (76) |  | (83) |  |  |  | (83) |  |
Ending balance | 483 |  | 613 |  |  |  | 582 |  |
Beginning balance | 60 |  | 56 |  |  |  | 58 |  |
Revisions of previous estimates | 8 |  | 4 |  |  |  | (1) |  |
Extensions and discoveries | 9 |  | 14 |  |  |  | 13 |  |
Sale of minerals in place | (1) |  |  |  |  |  |  |  |
Production for the year | (13) |  | (14) |  |  |  | (14) |  |
Ending balance | 63 |  | 60 |  |  |  | 56 |  |
Beginning balance | Bcf |  | 2,241 |  |  | 2,481 |  |  | 2,520 |
Revisions of previous estimates | Bcf |  | 136 |  |  | (104) |  |  | 178 |
Extensions and discoveries | Bcf |  | 199 |  |  | 384 |  |  | 329 |
Sale of minerals in place | Bcf |  | (6) |  |  | (8) |  |  | (4) |
Production for the year | Bcf |  | (460) |  |  | (512) |  |  | (542) |
Ending balance | Bcf |  | 2,110 |  |  | 2,241 |  |  | 2,481 |
Beginning balance | 1,073 |  | 1,080 |  |  |  | 929 |  |
Revisions of previous estimates | (61) |  | 7 |  |  |  | 157 |  |
Extensions and discoveries | 92 |  | 169 |  |  |  | 174 |  |
Improved recovery |  |  | 8 |  |  |  | 15 |  |
Sale of minerals in place | (11) |  | (3) |  |  |  | (2) |  |
Production for the year | (171) |  | (188) |  |  |  | (193) |  |
Ending balance | 922 |  | 1,073 |  |  |  | 1,080 |  |
Argentina [member] | Consolidated entities [Member] | Proved reserves, developed [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 301 |  | 339 |  |  |  | 286 |  |
Ending balance | 229 |  | 301 |  |  |  | 339 |  |
Beginning balance | 38 |  | 41 |  |  |  | 47 |  |
Ending balance | 32 |  | 38 |  |  |  | 41 |  |
Beginning balance | Bcf |  | 1,743 |  |  | 1,915 |  |  | 1,850 |
Ending balance | Bcf |  | 1,486 |  |  | 1,743 |  |  | 1,915 |
Beginning balance | 650 |  | 722 |  |  |  | 663 |  |
Ending balance | 526 |  | 650 |  |  |  | 722 |  |
Argentina [member] | Consolidated entities [Member] | Proved reserves, undeveloped [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 312 |  | 243 |  |  |  | 136 |  |
Ending balance | 254 |  | 312 |  |  |  | 243 |  |
Beginning balance | 22 |  | 15 |  |  |  | 11 |  |
Ending balance | 31 |  | 22 |  |  |  | 15 |  |
Beginning balance | Bcf |  | 498 |  |  | 566 |  |  | 670 |
Ending balance | Bcf |  | 624 |  |  | 498 |  |  | 566 |
Beginning balance | 423 |  | 358 |  |  |  | 266 |  |
Ending balance | 396 |  | 423 |  |  |  | 358 |  |
Argentina [member] | Consolidated and equity-accounted entities [Member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 613 |  | 582 |  |  |  | 422 |  |
Ending balance | 483 |  | 613 |  |  |  | 582 |  |
Beginning balance | 60 |  | 56 |  |  |  | 58 |  |
Ending balance | 63 |  | 60 |  |  |  | 56 |  |
Beginning balance | Bcf |  | 2,241 |  |  | 2,481 |  |  | 2,520 |
Ending balance | Bcf |  | 2,110 |  |  | 2,241 |  |  | 2,481 |
Beginning balance | 1,073 |  | 1,080 |  |  |  | 929 |  |
Ending balance | 922 |  | 1,073 |  |  |  | 1,080 |  |
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 301 |  | 339 |  |  |  | 286 |  |
Ending balance | 229 |  | 301 |  |  |  | 339 |  |
Beginning balance | 38 |  | 41 |  |  |  | 47 |  |
Ending balance | 32 |  | 38 |  |  |  | 41 |  |
Beginning balance | Bcf |  | 1,743 |  |  | 1,915 |  |  | 1,850 |
Ending balance | Bcf |  | 1,486 |  |  | 1,743 |  |  | 1,915 |
Beginning balance | 650 |  | 722 |  |  |  | 663 |  |
Ending balance | 526 |  | 650 |  |  |  | 722 |  |
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [member] |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [Line Items] |  |  |  |  |  |  |  |  |
Beginning balance | 312 |  | 243 |  |  |  | 136 |  |
Ending balance | 254 |  | 312 |  |  |  | 243 |  |
Beginning balance | 22 |  | 15 |  |  |  | 11 |  |
Ending balance | 31 |  | 22 |  |  |  | 15 |  |
Beginning balance | Bcf |  | 498 |  |  | 566 |  |  | 670 |
Ending balance | Bcf |  | 624 |  |  | 498 |  |  | 566 |
Beginning balance | 423 |  | 358 |  |  |  | 266 |  |
Ending balance | 396 |  | 423 |  |  |  | 358 |  |

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