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Consolidated statements of cash flow (Parenthetical) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Non cash transactions      
Unpaid acquisitions of property, plant and equipment and concession extension liabilities $ 17,691 $ 24,909 $ 11,561
Hydrocarbon wells abandonment obligation costs' recalculation (13,918) 1,172 $ (11,710)
Additions of right-of-use assets 11,421 39,779  
Capitalization of depreciation of right-of-use assets 3,789 2,021  
Capitalization of financial accretion for lease liabilities 967 311  
Capitalization in joint ventures $ 0 $ 738