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DEFERRED INCOME TAX ASSETS/LIABILITIES - Income tax benefit (expense) (Details) - ARS ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
DEFERRED INCOME TAX ASSETS/LIABILITIES      
Current tax expense   $ (4,819) $ (4,405)
Deferred tax benefit $ 2,838 (697) (1,610)
Income tax benefit (expense) $ 2,838 $ (5,516) $ (6,015)