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Investments in Associates and Joint Ventures - Summary of Investments Information (Detail)
$ / shares in Units, $ in Millions
 12 Months Ended
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%