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Acquisitions and Dispositions - Additional Information (Detail) $ in Millions |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 06, 2018 | Dec. 14, 2017 | Nov. 22, 2017 | Feb. 23, 2017 USD ($) | Mar. 31, 2017 | Dec. 31, 2017 ARS ($) | Dec. 31, 2017 USD ($) | Oct. 14, 2016 USD ($) | Jul. 25, 2016 USD ($) | May 07, 2015 ARS ($)
YPF S.A. and PetroUruguay S.A. [member] | Equity in Aguada la Arena area [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Participation interest percentage |  |  |  | 20.00% |  |  |  |  |  |
Participation interest transfer amount |  |  |  | $ 18 |  |  |  |  |  |
Participation interest increasing percentage |  |  |  | 100.00% |  |  |  |  |  |
YPF EE [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Participation in the capital stock |  |  |  |  |  | 100.00% | 100.00% |  |  |
Subscription price |  |  |  |  |  |  | $ 275 |  |  |
YPF EE [member] | 0 to 1 year [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Contribution made at closing date |  |  |  |  |  |  | 135 |  |  |
YPF EE [member] | Later than one year [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Contribution receivable |  |  |  |  |  |  | $ 140 |  |  |
YPF EE [member] | 24 months from the closing date [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent price evaluation percentage |  |  |  |  |  | 33.33% | 33.33% |  |  |
YPF EE [member] | Subsequent Years [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent price evaluation percentage |  |  |  |  |  | 16.67% | 16.67% |  |  |
YPF EE [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent price |  |  |  |  |  |  | $ 35 |  |  |
Repsol Butano SA [member] | YPF Gas SA [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of capital transferred |  |  |  |  |  |  |  |  |  | 33.997%
Repsol Trading S. A. [member] | Oleoducto Trasandino (Chile) S.A. [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of capital transferred |  |  |  |  |  |  |  |  |  | 17.79%
Repsol Butano S.A. and Repsol Trading S.A. [member] | YPF Gas S.A. and Oleoducto Trasandino (Chile) S.A. [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Cash transferred |  |  |  |  |  |  |  |  |  | $ 161,000,000
YPF EE [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment |  |  |  |  |  | $ 0 |  |  |  |
YPF EE [member] | GEFS Global Energy B V [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Participation in the capital stock | 24.99% | 25.00% |  |  |  |  |  |  |  |
YPF EE [member] | Group [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  | 75.00% | 75.00% |  |  |
YPF And Oilstone Energa S.A [member] | Cerro Bandera [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Business acquisition percentage of equity interest |  |  | 100.00% |  |  |  |  |  |  |
Consideration amount |  |  |  |  |  |  | $ 14 |  |  |
PEPASA [member] | Petrobras Argentina S.A. [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Capital and voting rights held |  |  |  |  |  | 67.20% | 67.20% |  |  |
PEPASA [member] | YPF S.A. [member] | Areas in Providence of Neuquen [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Guaranteed loan equivalent to the acquisition price |  |  |  |  |  |  |  |  | $ 140 |
Rio Neuquen [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interests in operating concessions participation percentage |  |  |  |  |  | 33.33% | 33.33% |  |  |
Equity interests in operating concessions |  |  |  |  |  |  |  | $ 72 |  |
Equity interests in operating concessions participation percentage cancelled |  |  |  |  | 33.33% |  |  |  |  |
Aguada de la Arena [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interests in operating concessions participation percentage |  |  |  |  |  | 80.00% | 80.00% |  |  |
Equity interests in operating concessions |  |  |  |  |  |  |  | $ 68 |  |
Equity interests in operating concessions participation percentage cancelled |  |  |  |  | 80.00% |  |  |  |  |

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