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Taxes Payable - Summary of taxes payable (Detail) - ARS ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of Taxes Payable [Line Items]      
Non current $ 215 $ 1,428 $ 2,175
Current 15,764 11,437 10,027
VAT [member]      
Disclosure of Taxes Payable [Line Items]      
Current 3,523 3,532 2,274
Withholdings and Perceptions [member]      
Disclosure of Taxes Payable [Line Items]      
Current 1,838 2,070 1,631
Royalties [member]      
Disclosure of Taxes Payable [Line Items]      
Current 3,886 1,268 1,464
Tax on Fuels [member]      
Disclosure of Taxes Payable [Line Items]      
Current 3,142 635 1,290
IIBB [member]      
Disclosure of Taxes Payable [Line Items]      
Current 227 512 547
Miscellaneous [member]      
Disclosure of Taxes Payable [Line Items]      
Non current 215 1,428 2,175
Current $ 3,148 $ 3,420 $ 2,821