XML 147 R123.htm IDEA: XBRL DOCUMENT v3.19.1
Income Tax - Additional Information (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Estimated a tax loss carryforward $ 57,267    
Deferred income tax assets, net 301 $ 588 $ 564
Deferred income tax liabilities, net $ 91,125 $ 37,645 42,465
Subsidiaries [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Unused tax losses for which have not been recorded deferred tax asset     1,138
Subsidiaries [member] | 2017 onwards [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Unused tax losses for which have not been recorded deferred tax asset     1,090
Subsidiaries [member] | Indeterminate Maturity [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Unused tax losses for which have not been recorded deferred tax asset     $ 48
Argentina [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Tax loss carryforwards expire Expire within 5 years.    
Unused tax losses for which have not been recorded deferred tax asset $ 21,575