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Trade Receivables - Summary of Evolution of the Provision for Doubtful Trade Receivables (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Current [member]      
Disclosure Evolution Of the Provision For Doubtful Trade Receivables [line items]      
Balance at beginning of the fiscal year $ 6,580 $ 2,776 $ 1,323
Modification of balance at beginning of the fiscal year     425
Balance at beginning of the fiscal year 6,580 2,776 1,748
Increases charged to expenses 10,818 3,891 444
Decreases charged to income (729) (707) (91)
Amounts incurred due to utilization   (112)  
Translation differences 715 847 607
Result from net monetary position (232) (103) 92
Reclassifications (6,633) (12) (24)
Balance at end of period 10,519 $ 6,580 $ 2,776
Non current [member]      
Disclosure Evolution Of the Provision For Doubtful Trade Receivables [line items]      
Increases charged to expenses 2,228    
Reclassifications 6,633    
Balance at end of period $ 8,861