v3.25.1
Equity Investments in Subsidiaries, Associates and Joint Ventures - Additional information (Detail)
 4 Months Ended 12 Months Ended
Dec. 26, 2024
shares
Dec. 06, 2024
ARS ($)
customer
branch
shares
Oct. 11, 2023
$ / shares
shares
Dec. 31, 2024
ARS ($)
$ / shares
shares
Dec. 31, 2024
ARS ($)
customer
office
producer
$ / shares
shares
Dec. 31, 2023
ARS ($)
Dec. 31, 2022
ARS ($)
Dec. 06, 2024
USD ($)
shares
Dec. 05, 2024
$ / shares
Oct. 17, 2024
$ / shares
Aug. 20, 2024
$ / shares
Sep. 30, 2023
ARS ($)
Disclosure of subsidiaries [line items]                        
Number of shares issued (in shares) | shares   739,572,218,000           739,572,218,000        
Par value per share (in dollars per share) | $ / shares       $ 1 $ 1       $ 1 $ 1 $ 1  
Payments for business combinations         $ 0 $ 26,360,879,000 $ 0          
Fair value of net assets acquired       $ 1,946,905,973,000 1,946,905,973,000              
Debt Securities       1,096,011,970,000 1,096,011,970,000 219,201,761,000            
Liabilities       28,721,128,962,000 28,721,128,962,000 19,383,966,954,000            
Issued capital, ordinary shares       $ 1,244,126 $ 1,244,126              
Class A ordinary shares                        
Disclosure of subsidiaries [line items]                        
Number of shares issued (in shares) | shares       852,117,003 852,117,003              
Class B ordinary shares                        
Disclosure of subsidiaries [line items]                        
Number of shares issued (in shares) | shares       392,008,586 392,008,586              
Grupo Financiero Galicia S.A.                        
Disclosure of subsidiaries [line items]                        
Debt Securities       $ 997,453,190,000 $ 997,453,190,000 182,469,262,000            
Grupo Financiero Galicia S.A. | Negotiable Obligation                        
Disclosure of subsidiaries [line items]                        
Debt Securities   $ 90,975,964,000           $ 81,158,000        
GGAL Holdings S.A., GGAL Participaciones S.A.U., And Banco GGAL S.A.                        
Disclosure of subsidiaries [line items]                        
Fair value of net assets acquired       1,946,905,973,000 1,946,905,973,000              
GGAL Holdings S.A., GGAL Participaciones S.A.U., And Banco GGAL S.A. | Grupo Financiero Galicia S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   42.11%           42.11%        
Percentage of equity investments   42.11%           42.11%        
HSBC Bank Argentina S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   99.99383%           99.99383%        
Percentage of equity investments   99.99383%           99.99383%        
HSBC Argentina Holdings S.A., HSBC Participaciones (Argentina) S.A., HSBC Global Asset Management S.A., HSBC Seguros de Vida (Argentina) S.A., and HSBC Seguros de Retiro (Argentina) S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   100.00%           100.00%        
Percentage of equity investments   100.00%           100.00%        
GGAL Holdings S.A.                        
Disclosure of subsidiaries [line items]                        
Number of shares issued (in shares) | shares   1,184,364,392           1,184,364,392        
Income from insurance activity       74,847,658,000                
Profit (loss) of acquiree since acquisition date       (184,768,527,000)                
Income if combination occurred at beginning of period         1,724,539,992,000              
Loss of combined entity as if combination occurred at beginning of period         46,344,327,000              
Fair value of net assets acquired       1,946,706,593,000 1,946,706,593,000              
Profit (loss) from associates and joint ventures         786,610,176,000              
Cash transferred   $ 395,221,502,000                    
Total shares acquired | shares 3,997,362 1,180,367,030                    
Share issue related cost   $ 739,572,218,000                    
GGAL Holdings S.A. | Grupo Financiero Galicia S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   41.968%           41.968%        
Percentage of equity investments   41.968%           41.968%        
Cancellation of obligations   $ 1,262,654,172,000                    
Bank transfer   $ 417,790,982,000                    
Total shares acquired | shares   497,052,556                    
GGAL Holdings S.A. | HSBC Latin America B.V.                        
Disclosure of subsidiaries [line items]                        
Non-current liabilities   $ 15,790,890,000           $ 14,319,030.00        
GGAL Holdings S.A. | HSBC Latin America B.V. | Negotiable Obligation                        
Disclosure of subsidiaries [line items]                        
Debt Securities   $ 89,500,082,000           $ 81,158,000        
Banco GGAL S.A.                        
Disclosure of subsidiaries [line items]                        
Number of shares issued (in shares) | shares   1,244,125,589           1,244,125,589        
Fair value of net assets acquired       148,963,000 $ 148,963,000              
Total shares acquired | shares   103,739                    
Banco GGAL S.A. | Grupo Financiero Galicia S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   0.004%           0.004%        
Percentage of equity investments   0.004%           0.004%        
Non-current liabilities               $ 100,000,000        
Total shares acquired | shares   43,684                    
Sudamericana Seguros Galicia S.A.                        
Disclosure of subsidiaries [line items]                        
Transfer or ordinary shares (in shares) | shares     4,512,697,946                  
Par value per share (in dollars per share) | $ / shares     $ 1                  
Percentage of shareholding     99.43%                  
Number of customers | customer         775,000              
Number of branch offices | office         13              
Number of insurance producers | producer         5,000              
Income from insurance activity         $ 69,809,430,000              
Profit (loss) of acquiree since acquisition date         (1,070,102,000)              
Income if combination occurred at beginning of period         256,553,244,000              
Loss of combined entity as if combination occurred at beginning of period         (10,147,344,000)              
Payments for business combinations         26,360,879,000              
Fair value of net assets acquired       37,890,471,000 37,890,471,000             $ 37,890,471,000
Profit (loss) from associates and joint ventures         11,529,592,000              
GGAL Asset Management S.A. S.G.F.C.I.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired 43.5608%                      
Percentage of equity investments 43.5608%                      
Tarjetas Regionales S.A.                        
Disclosure of subsidiaries [line items]                        
Liabilities       20,639,616,000 20,639,616,000 26,796,000            
Galicia Securities S.A.U.                        
Disclosure of subsidiaries [line items]                        
Liabilities       137,552,002,000 137,552,002,000 110,218,158,000            
Seguros Sura SA                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired     99.434%                  
Percentage of equity investments     99.434%                  
Banco de Galicia y Bs.As. S.A.U.                        
Disclosure of subsidiaries [line items]                        
Liabilities       $ 18,732,152,087,000 $ 18,732,152,087,000 $ 16,576,835,097,000            
Banco de Galicia y Bs.As. S.A.U. | GGAL Holdings S.A., GGAL Participaciones S.A.U., And Banco GGAL S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   57.89%           57.89%        
Percentage of equity investments   57.89%           57.89%        
Banco de Galicia y Bs.As. S.A.U. | GGAL Holdings S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   57.695%           57.695%        
Percentage of equity investments   57.695%           57.695%        
Total shares acquired | shares   683,314,474                    
Banco de Galicia y Bs.As. S.A.U. | Banco GGAL S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired   0.005%           0.005%        
Percentage of equity investments   0.005%           0.005%        
Total shares acquired | shares   60,055                    
Banco GGAL S.A.                        
Disclosure of subsidiaries [line items]                        
Percentage of voting interests acquired       0.01% 0.01% 0.00%            
Percentage of equity investments       0.01% 0.01% 0.00%            
Liabilities       $ 4,523,001,988,000 $ 4,523,001,988,000              
Banco GGAL S.A. | GGAL Holdings S.A.                        
Disclosure of subsidiaries [line items]                        
Number of customers | customer   10,141                    
Number of business branches acquired | branch   101                    
Number of individuals | customer   593,330