v3.25.1
INVESTMENTS IN SUBSIDIARIES, ASSOCIATES AND JOINT VENTURES - Summary of Equity Investments in Subsidiaries (Detail) - shares
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Banco de Galicia y Buenos Aires S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 668,549,353 668,549,353
Interest 100.00% 100.00%
Banco GGAL S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,244,048,856 1,244,048,856
Interest 100.00% 100.00%
Galicia Asset Management S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 20,000 20,000
Interest 100.00% 100.00%
Galicia Broker Asesores de Seguros S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 71,310 71,310
Interest 100.00% 100.00%
Galicia Capital US LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,000 1,000
Interest 100.00% 100.00%
Galicia Holdings US Inc.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,000 1,000
Interest 100.00% 100.00%
Galicia Investments LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 100 100
Interest 100.00% 100.00%
Galicia Retiro Compañía de Seguros S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 27,727,278 27,727,278
Interest 100.00% 100.00%
Galicia Securities S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 95,392,000 95,392,000
Interest 100.00% 100.00%
Galicia Seguros S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 846,328,042 1,830,887
Interest 100.00% 100.00%
Galicia Ventures LP    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,000 1,000
Interest 100.00% 100.00%
Galicia Warrants S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,000,000 1,000,000
Interest 100.00% 100.00%
GGAL Asset Management S.A. S.G.F.C.I.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,791,487 1,791,487
Interest 100.00% 100.00%
GGAL Holdings S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 748,712,987,065 748,712,987,065
Interest 100.00% 100.00%
GGAL Participaciones S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 11,513,929 11,513,929
Interest 100.00% 100.00%
GGAL Seguros S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 37,855,000 37,855,000
Interest 100.00% 100.00%
GGAL Seguros de Retiro S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 49,803,430 49,803,430
Interest 100.00% 100.00%
Nera Uruguay S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 30,133 30,133
Interest 100.00% 100.00%
Nera Paraguay S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,000 1,000
Interest 100.00% 100.00%
IGAM LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 100 100
Interest 100.00% 100.00%
INVIU S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 809,611,333 809,611,333
Interest 100.00% 100.00%
INVIU Capital Markets Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1 1
Interest 100.00% 100.00%
INVIU Manager Investment Ltd.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1 1
Interest 100.00% 100.00%
INVIU México S.A.P.I. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,500 1,500
Interest 100.00% 100.00%
INVIU Perú S.A.B. S.A.C.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 2,439,992 2,439,992
Interest 100.00% 100.00%
INVIU Technology Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1 1
Interest 100.00% 100.00%
INVIU Uruguay Agente de Valores S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 300,000,000 300,000,000
Interest 100.00% 100.00%
Vestly Asset Management LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 100 100
Interest 100.00% 100.00%
Vestly México S.A. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,500 1,500
Interest 100.00% 100.00%
Naranja Digital Compañía Financiera S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 26,816,107,017 1,712,567,500
Interest 100.00% 100.00%
NHI(UK) Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 19,000,000 19,000,000
Interest 100.00% 100.00%
N-xers S.A. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 405,816,000 405,816,000
Interest 100.00% 100.00%
Sudamericana Holding S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 112,052,027 32,717,429
Interest 100.00% 100.00%
Seguros Galicia S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 4,512,697,946 4,512,697,946
Interest 99.00% 99.00%
Tarjeta Naranja S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 2,896 2,896
Interest 100.00% 100.00%
Tarjetas Regionales S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 1,756,704,458 1,756,704,458
Interest 100.00% 100.00%
Well Assistance S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Holding (in shares) 100,000 100,000
Interest 100.00% 100.00%