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Property, Plant and Equipment - Summary of Provisions for Impairment of Property, Plant and Equipment (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year $ 354,443 $ 308,014  
Depreciation (87,569) (53,512) $ (44,752)
Deconsolidation of subsidiaries (500)    
Amount at end of year 699,087 354,443 308,014
Provision for Impairment of Property Plant and Equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Amount at beginning of year 26,535 36,285 2,455
Increases charged to profit/ (loss) 36,937   36,188
Decreases charged to profit/ (loss) (39,837) (5,032) (1,245)
Depreciation (10,208) (9,955) (2,877)
Translation differences 23,634 5,237 1,869
Deconsolidation of subsidiaries     (105)
Amount at end of year $ 37,061 $ 26,535 $ 36,285