XML 188 R166.htm IDEA: XBRL DOCUMENT v3.21.1
Shareholders' Equity - Additional Information (Detail) - ARS ($)
$ / shares in Units, $ in Millions
 12 Months Ended
May 04, 2012
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Detailed information Of Share Capital [line items]      
Share capital   $ 3,926  
Description in classes of shares   four classes of shares (A, B, C and D)  
Par value of share   $ 10  
Description of voting rights   1 vote per share  
Description of shares based on grants outstanding   the affirmative vote of Argentine Government is required for: 1) mergers, 2) acquisitions of more than 50% of YPF shares in an agreed or hostile bid, 3) transfers of all the YPF’s production and exploration rights, 4) the voluntary dissolution of YPF or 5) change of corporate and/or tax address outside the Argentine Republic. Items 3) and 4) will also require prior approval by the Argentine Congress.  
Explanation of law enacted equity structure   According to Law 26,741, achieving self-sufficiency in the supply of hydrocarbons as well as in the exploitation, industrialization, transportation and sale of hydrocarbons, is thereby declared of national public interest and a priority for Argentina, with the goal of guaranteeing socially equitable economic development, the creation of jobs, the increase of the competitiveness of various economic sectors and the equitable and sustainable growth of the provinces and regions. The shares subject to expropriation were distributed as follows: 51% for the Argentine federal government and 49% for certain Argentine Provinces.  
Reserve for the purchase of treasury shares     $ 550
Reserves for investments   $ 8,934  
Reserves for dividend   3,700  
Adjustments To Accumulated losses in retained earnings   34,071  
Adjustments To Discontinued reserves   $ 13,184  
Expropation Shares of YPF Owned by Repsol [Member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Proportion of ownership interests in equity 57.43%    
Participation in the capital stock 51.00%    
Petersen Energia SAU and Affiliates [Member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Participation in the capital stock 25.46%    
Federal Government [member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Percentage of shares subject to expropriation 51.00%    
State or Province [member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Percentage of shares subject to expropriation 49.00%    
Ordinary shares [member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Number of shares of common stock   393,312,793  
Class A Shares [member]      
Disclosure Of Detailed information Of Share Capital [line items]      
Common shares outstanding   3,764  
Proportion of maximum shares acquired by related party   50.00%