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OPERATING EXPENSES - Depreciation & Amortization (Details) - ARS ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
OPERATING EXPENSES      
Depreciation of PP&E $ (46,977) $ (42,467) $ (14,911)
Amortization of intangible assets (8,269) (8,181) (163)
Amortization of rights of use assets (3,479) (150) (8)
Impairment of fixed assets (2,564) (3,216)  
Depreciation, amortization and impairment of fixed assets $ (61,289) $ (54,014) $ (15,082)