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Income Tax - Summary of Reconciliation between the Charge to Net Income for Income Tax and the One that would Result from Applying the Prevailing Tax Rate on Net Income Before Income Tax Arising from the Consolidated Statements of Comprehensive Income (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]          
Net income before income tax $ 63,601 $ (56,428) $ (7,010)    
Average tax rate 34.37% 30.00% 30.00% 30.00% 35.00%
Average tax rate applied to net income before income tax $ (21,857) $ 16,928 $ 2,103    
Effect of the valuation of property, plant and equipment and intangible assets, net 49,300 (62,218) (20,189)    
Effect of exchange differences and other results associated to the valuation of the currency, net (49,946) 24,242 22,553    
Effect of the valuation of inventories (10,503) (11,102) (11,553)    
Income on investments in associates and joint ventures 9,442 3,981 2,390    
Effect of tax rate change (40,743) 4,286 1,956    
Dispute relating to cost deduction for hydrocarbon wells abandonment     (5,175)    
Interest related to the payment facility plan for the dispute associated to cost deduction for hydrocarbon wells abandonment   (657) 1,333    
Miscellaneous (102) 3,541 1,056    
Income tax $ (64,409) $ (20,999) $ (5,526)