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Investments in Associates and Joint Ventures - Summary of analysis of assets and liabilities on date control was lost (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of summary of analysis of assets and liabilities on date control was lost [line items]        
Noncurrent assets $ 785,601 $ 383,420 $ 333,913  
Current assets 208,415 122,298 87,226  
Total assets 994,016 505,718 421,139  
Noncurrent liabilities 452,690 250,451 220,012  
Current liabilities 178,969 102,734 82,466  
Total liabilities 631,659 353,185 302,478  
Total shareholders' equity 362,357 152,533 118,661 $ 120,461
Revenues 435,820 252,813 210,100  
Costs (359,570) (211,812) (177,304)  
Gross profit 76,250 41,001 32,796  
Operating profit/ (loss) 43,780 16,073 (24,246)  
Income from equity interest in associates and joint ventures 4,839 1,428 588  
Net financial results 41,525 (8,798) (6,146)  
Net profit / (loss) before income tax 90,144 8,703 (29,804)  
Income tax (51,538) 3,969 1,425  
Net profit 38,606 $ 12,672 $ (28,379)  
YPF EE [member]        
Disclosure of summary of analysis of assets and liabilities on date control was lost [line items]        
Noncurrent assets 35,682      
Current assets 12,596      
Total assets 48,278      
Noncurrent liabilities 13,348      
Current liabilities 9,776      
Total liabilities 23,124      
Total shareholders' equity 25,154      
Revenues 4,181      
Costs (1,655)      
Gross profit 2,526      
Operating profit/ (loss) 4,686      
Income from equity interest in associates and joint ventures 673      
Net financial results 280      
Net profit / (loss) before income tax 5,639      
Income tax (1,150)      
Net profit $ 4,489