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EQUITY - Summary (Details) - ARS ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
EQUITY        
Equity attributable to Controlling Company $ 225,686 $ 54,182    
Equity attributable to non-controlling interest (Note 1.a) 3,227 846    
TOTAL EQUITY (See Consolidated Statements of Changes in Equity) $ 228,913 $ 55,028 $ 54,673 $ 48,804