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Lease liabilities - Summary of lease liabilities activity (Detail) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Lease liabilities [abstract]      
Balance at the beginning of the year $ 46,270 $ 61,780 $ 23,059
Leases increase 27,745 11,421 39,779
Financial accretion 5,331 5,706 2,885
Leases decrease (4,352) (28,914) (1,741)
Payments (28,526) (23,290) (15,208)
Exchange and translation differences, net 9,213 19,548 12,999
Result from net monetary position (59) 19 7
Balance at the end of year $ 55,622 $ 46,270 $ 61,780