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Loans - Schedule of Loans (Parenthetical) (Detail)
$ in Millions, $ in Millions
Dec. 31, 2021
ARS ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
ARS ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
ARS ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
ARS ($)
Disclosure of detailed information about borrowings [line items]              
Repurchase of negotiable obligations $ 360       $ 326    
Loans accrued 757,215   $ 678,306   526,760   $ 335,078
Cancellation of negotiable obligations 61,811   20,496   4,643    
Cancellation of negotiable obligations in U.S. dollars   $ 4,602   $ 4,602   $ 15,850  
Export Pre financing [member] | Banco Nacion Argentina [member]              
Disclosure of detailed information about borrowings [line items]              
Loans accrued $ 174   $ 4,791   $ 4,933    
Interest rate 5.50% 5.50% 5.85% 5.85% 6.89% 6.89%