v3.25.1
FAIR VALUES - Summary of Changes in Instruments Included in Fair Value Level 3 (Detail) - ARS ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance $ 35,304,482,204  
Ending balance 34,813,628,193  
Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 95,097,094 $ 16,965,707
Transfers (22,363,766) 31,244,625
Recognition 15,717,680 56,534,862
Derecognition (17,988,570) (12,158,288)
Income 12,165,472 20,713,076
Inflation Effect (6,460,562) (18,202,888)
Ending balance 76,167,348 95,097,094
Transfers into Level 3 2,643,609 33,576,753
Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 3,414,462,015  
Ending balance 3,356,204,140  
Transfers out of Level 3 (22,388,739) (1,813,978)
Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 1,224,612,665  
Ending balance 1,146,951,893  
Transfers out of Level 3 (2,618,636) (518,150)
Government Securities | Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 31,851,611 0
Transfers (18,151,855) 27,559,656
Recognition 8,050,496 7,656,760
Derecognition (12,337,521) (1,816,970)
Income 2,202,330 3,803,350
Inflation Effect (1,634,866) (5,351,185)
Ending balance 9,980,195 31,851,611
Government Securities | Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 1,450,991,646  
Ending balance 944,976,822  
Government Securities | Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 12,416,632  
Ending balance 234,830,834  
Corporate Securities | Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 4,768,406 586,750
Transfers 1,966,815 3,684,969
Recognition 2,561,275 5,211,105
Derecognition (1,275,736) (3,316,469)
Income 160,849 (267,420)
Inflation Effect (413,718) (1,130,529)
Ending balance 7,767,891 4,768,406
Corporate Securities | Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 62,051,013  
Ending balance 99,797,558  
Corporate Securities | Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 73,030,873  
Ending balance 26,619,817  
Other Debt Securities    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Ending balance 2,055,839,425  
Other Debt Securities | Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 2,553,142 0
Transfers (2,589,985) 0
Recognition 0 2,452,871
Derecognition 0 0
Income 36,843 100,271
Inflation Effect 0 0
Ending balance 0 2,553,142
Other Debt Securities | Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 1,512,345,135  
Ending balance 2,006,110,656  
Other Debt Securities | Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 982,634,164  
Ending balance 839,905,003  
Others    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Ending balance 2,053,116,168  
Others | Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 20,677,139 0
Transfers 0 0
Recognition 3,746,452 22,646,415
Derecognition (4,375,313) (2,589,263)
Income 1,308,687 619,987
Inflation Effect (1,632,000) 0
Ending balance 19,724,965 20,677,139
Others | Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 341,279,478  
Ending balance 250,970,927  
Others | Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 47,144  
Ending balance 43,211  
Investments in Equity Instruments | Level 3    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 35,246,796 16,378,957
Transfers (3,588,741) 0
Recognition 1,359,457 18,567,711
Derecognition 0 (4,435,586)
Income 8,456,763 16,456,888
Inflation Effect (2,779,978) (11,721,174)
Ending balance 38,694,297 $ 35,246,796
Investments in Equity Instruments | Level 1    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 10,446,504  
Ending balance 34,062,429  
Investments in Equity Instruments | Level 2    
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]    
Beginning balance 0  
Ending balance $ 0