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TRADE RECEIVABLES - Movements in the allowance for current doubtful accounts (Details) - Trade receivables - ARS ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Trade receivables    
At the beginning of the fiscal year $ (6,534) $ (5,547)
Additions -Bad debt expenses (10,805) (8,619)
Uses and Currency translation adjustments (includes RECPAM) 7,249 7,632
At the end of the year $ (10,090) $ (6,534)