XML 123 R101.htm IDEA: XBRL DOCUMENT v3.21.1
Financial Instruments by Category - Summary of Company's Financial Assets Measured at Fair Value (Parenthetical) (Detail) - ARS ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]      
Financial assets at amortized cost $ 190,532 $ 218,122 $ 152,026
Investment in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial assets at amortized cost $ 19,052