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Investments in Associates and Joint Ventures - Summary of Investments Information (Detail) $ / shares in Units, $ in Millions | 12 Months Ended |  |
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Dec. 31, 2020 ARS ($) $ / shares shares | Dec. 31, 2019 ARS ($) | Dec. 31, 2018 ARS ($) | Dec. 31, 2020 $ / shares | Dec. 31, 2020 Bs. / shares | Dec. 31, 2017 ARS ($)
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Securities Face Value | $ / shares | $ 10 |  |  |  |  |
Book Value | $ 107,124 | $ 67,602 |  |  |  |
Cost | 6,819 |  |  |  |  |
Net (loss) / profit | (71,017) | (33,379) | $ 38,606 |  |  |
Equity | 683,395 | 548,099 | 362,357 |  |  | $ 152,533
Associates [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Book Value | 10,487 | 6,789 |  |  |  |
Cost | $ 648 |  |  |  |  |
Associates [member] | Oleoductos del Valle S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 10 |  |  |  |  |
Securities Amount | shares | 4,072,749 |  |  |  |  |
Book Value | $ 2,998 | 1,778 |  |  |  |
Main Business | Oil transportation by pipeline |  |  |  |  |
Registered Address | Florida 1, 10th floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 110 |  |  |  |  |
Net (loss) / profit | 1,684 |  |  |  |  |
Equity | $ 10,442 |  |  |  |  |
Holding in capital stock | 37.00% |  |  |  |  |
Associates [member] | Terminales Maritimas Patagonicas S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 10 |  |  |  |  |
Securities Amount | shares | 476,034 |  |  |  |  |
Book Value | $ 1,295 | 711 |  |  |  |
Main Business | Oil storage and shipment |  |  |  |  |
Registered Address | Av. Leandro N. Alem 1180, 11th floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 14 |  |  |  |  |
Net (loss) / profit | 478 |  |  |  |  |
Equity | $ 3,522 |  |  |  |  |
Holding in capital stock | 33.15% |  |  |  |  |
Associates [member] | Oiltanking Ebytem S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 10 |  |  |  |  |
Securities Amount | shares | 351,167 |  |  |  |  |
Book Value | $ 1,145 | 871 |  |  |  |
Main Business | Hydrocarbon transportation and storage |  |  |  |  |
Registered Address | Terminal Marítima Puerto Rosales – Provincia de Buenos Aires, Argentina. |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 12 |  |  |  |  |
Net (loss) / profit | 1,043 |  |  |  |  |
Equity | $ 3,654 |  |  |  |  |
Holding in capital stock | 30.00% |  |  |  |  |
Associates [member] | Central Dock Sud S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 0.01 |  |  |  |  |
Securities Amount | shares | 11,869,095,145 |  |  |  |  |
Book Value | $ 2,079 | 1,542 |  |  |  |
Main Business | Electric power generation and bulk marketing |  |  |  |  |
Registered Address | Pasaje Ingeniero Butty 220, 16th floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 1,231 |  |  |  |  |
Net (loss) / profit | 1,087 |  |  |  |  |
Equity | $ 20,286 |  |  |  |  |
Holding in capital stock | 10.25% |  |  |  |  |
Associates [member] | YPF Gas S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 59,821,434 |  |  |  |  |
Book Value | $ 1,655 | 965 |  |  |  |
Main Business | Gas fractionation, bottling, distribution and transport for industrial and/or residential use |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 176 |  |  |  |  |
Net (loss) / profit | 1,116 |  |  |  |  |
Equity | $ 6,316 |  |  |  |  |
Holding in capital stock | 33.99% |  |  |  |  |
Associates [member] | Other Related Parties [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Book Value | $ 1,315 | 922 |  |  |  |
Cost | 648 |  |  |  |  |
Joint Ventures [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Book Value | 96,637 | 60,813 |  |  |  |
Cost | 6,171 |  |  |  |  |
Net (loss) / profit | $ 11,652 | 5,936 | $ 3,814 |  |  |
Joint Ventures [member] | YPF Energia Electrica S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 1,879,916,921 |  |  |  |  |
Book Value | $ 53,609 | 35,382 |  |  |  |
Cost | $ 1,085 |  |  |  |  |
Main Business | Exploration, exploitation, industrialization and marketing of hydrocarbons and generation, transport and marketing of electric energy |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 3,747 |  |  |  |  |
Net (loss) / profit | 5,911 |  |  |  |  |
Equity | $ 70,795 |  |  |  |  |
Holding in Capital Stock | 75.00% |  |  |  |  |
Joint Ventures [member] | Compania Mega S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 244,246,140 |  |  |  |  |
Book Value | $ 7,733 | 5,211 |  |  |  |
Main Business | Separation, fractionation and transportation of natural gas liquids |  |  |  |  |
Registered Address | San Martín 344, 10th floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 643 |  |  |  |  |
Net (loss) / profit | 1,148 |  |  |  |  |
Equity | $ 17,694 |  |  |  |  |
Holding in Capital Stock | 38.00% |  |  |  |  |
Joint Ventures [member] | Profertil S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 391,291,320 |  |  |  |  |
Book Value | $ 16,951 | 10,778 |  |  |  |
Main Business | Production and marketing of fertilizers |  |  |  |  |
Registered Address | Alicia Moreau de Justo 740, 3rd floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 783 |  |  |  |  |
Net (loss) / profit | 3,870 |  |  |  |  |
Equity | $ 34,055 |  |  |  |  |
Holding in Capital Stock | 50.00% |  |  |  |  |
Joint Ventures [member] | Refinera Del Norte S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 45,803,655 |  |  |  |  |
Book Value | $ 2,220 | 1,881 |  |  |  |
Main Business | Refining |  |  |  |  |
Registered Address | Maipú 1, 2nd floor, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Sep. 30, 2020 |  |  |  |  |
Capital Stock | $ 92 |  |  |  |  |
Net (loss) / profit | (652) |  |  |  |  |
Equity | $ 4,432 |  |  |  |  |
Holding in Capital Stock | 50.00% |  |  |  |  |
Joint Ventures [member] | Oleoducto Loma Campana-Lago Pellegrini S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 738,139,164 |  |  |  |  |
Book Value | $ 1,143 | 762 |  |  |  |
Cost | $ 738 |  |  |  |  |
Main Business | Construction and exploitation of a pipeline, oil transport and storage, import, export, purchase and sale of raw materials, industrial equipment and machinery |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 868 |  |  |  |  |
Net (loss) / profit | (226) |  |  |  |  |
Equity | $ 1,006 |  |  |  |  |
Holding in Capital Stock | 85.00% |  |  |  |  |
Joint Ventures [member] | CT Barragn SA [Member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 4,279,033,952 |  |  |  |  |
Book Value | $ 14,981 | $ 6,799 |  |  |  |
Cost | $ 4,348 |  |  |  |  |
Main Business | Production and generation of electric energy |  |  |  |  |
Registered Address | Maipú 1, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 8,558 |  |  |  |  |
Net (loss) / profit | 9,528 |  |  |  |  |
Equity | $ 29,998 |  |  |  |  |
Holding in Capital Stock | 50.00% |  |  |  |  |
Subsidiaries [member] | YPF International S.A. [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | Bs. / shares |  |  |  |  | Bs. 100 |
Securities Amount | shares | 66,897 |  |  |  |  |
Main Business | Investment |  |  |  |  |
Registered Address | La Plata 19 Street, Santa Cruz de la Sierra, Bolivia |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 15 |  |  |  |  |
Equity | $ 109 |  |  |  |  |
Holding in Capital Stock | 100.00% |  |  |  |  |
Subsidiaries [member] | YPF Holdings Inc. [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares |  |  |  | $ 0.01 |  |
Securities Amount | shares | 810,513 |  |  |  |  |
Main Business | Investment and finance |  |  |  |  |
Registered Address | 10333 Richmond Avenue I, Suite 1050, TX, United States |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 68,124 |  |  |  |  |
Net (loss) / profit | (8) |  |  |  |  |
Equity | $ (18,070) |  |  |  |  |
Holding in Capital Stock | 100.00% |  |  |  |  |
Subsidiaries [member] | Operadora de Estaciones de Servicios S.A.[member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 163,701,747 |  |  |  |  |
Main Business | Commercial management of YPF’s gas stations |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 164 |  |  |  |  |
Net (loss) / profit | (831) |  |  |  |  |
Equity | $ 5,036 |  |  |  |  |
Holding in Capital Stock | 99.99% |  |  |  |  |
Subsidiaries [member] | A-Evangelista S.A. [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 11,714,952,101 |  |  |  |  |
Main Business | Engineering and construction services |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 307 |  |  |  |  |
Net (loss) / profit | (2,596) |  |  |  |  |
Equity | $ 8,188 |  |  |  |  |
Holding in Capital Stock | 100.00% |  |  |  |  |
Subsidiaries [member] | Metrogas S.A. [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 398,419,700 |  |  |  |  |
Main Business | Providing the public service of natural gas distribution |  |  |  |  |
Registered Address | Gregorio Aráoz de Lamadrid 1360, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 569 |  |  |  |  |
Net (loss) / profit | (5,401) |  |  |  |  |
Equity | $ 14,398 |  |  |  |  |
Holding in Capital Stock | 70.00% |  |  |  |  |
Subsidiaries [member] | YPF Chile S.A. [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Amount | shares | 50,968,649 |  |  |  |  |
Main Business | Lubricants and aviation fuels trading and hydrocarbons research and exploration |  |  |  |  |
Registered Address | Villarica 322; Módulo B1, Qilicura, Santiago, Chile |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 3,838 |  |  |  |  |
Net (loss) / profit | (137) |  |  |  |  |
Equity | $ 2,568 |  |  |  |  |
Holding in Capital Stock | 100.00% |  |  |  |  |
Subsidiaries [member] | YPF Tecnologia S.A [member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 234,291,000 |  |  |  |  |
Main Business | Investigation, development, production and marketing of technologies, knowledge, goods and services |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 459 |  |  |  |  |
Net (loss) / profit | 16 |  |  |  |  |
Equity | $ 3,714 |  |  |  |  |
Holding in Capital Stock | 51.00% |  |  |  |  |
Subsidiaries [member] | Compania de Inversiones Mineras S.A. [Member] |  |  |  |  |  |
Disclosure of investments in associates and joint ventures [line items] |  |  |  |  |  |
Description of the Securities Class | Common |  |  |  |  |
Securities Face Value | $ / shares | $ 1 |  |  |  |  |
Securities Amount | shares | 236,474,420 |  |  |  |  |
Main Business | Exploration, exploitation, processing, management, storage and transport of all types of minerals; assembly, construction and operation of facilities and structures and processing of products related to mining |  |  |  |  |
Registered Address | Macacha Güemes 515, Buenos Aires, Argentina |  |  |  |  |
Last available financial statements Date | Dec. 31, 2020 |  |  |  |  |
Capital Stock | $ 236 |  |  |  |  |
Net (loss) / profit | (90) |  |  |  |  |
Equity | $ 12 |  |  |  |  |
Holding in Capital Stock | 100.00% |  |  |  |  |

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