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Income tax and deferred tax (Details) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax And Deferred Tax      
Deferred tax $ (15,017) $ (12,356) $ 8,150
Change in the income tax rate 0 (14,557) 2,501
Current tax 0 (3,978) 0
Difference between provision and tax return 183 436 (179)
Income tax expense $ (14,834) $ (30,455) $ 10,472