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Right-of-use assets (Details) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Right-of-use Assets    
Balance at beginning of year $ 828 $ 670
Additions 912 1,050
Depreciation for the year (1,033) (892)
Balance at end of the year $ 707 $ 828