v3.25.1
Equity Investments in Subsidiaries, Associates and Joint Ventures - Summary of Equity Investments in Subsidiaries (Detail) - shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Agri Tech Investments Argentina S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 199,937 199,937
Equity Investment % 100.00% 100.00%
Agri Tech Investments LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 100 100
Equity Investment % 100.00% 100.00%
Banco de Galicia y Bs.As. S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 668,549,353 668,549,353
Equity Investment % 100.00% 100.00%
Banco GGAL S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,244,048,856 0
Equity Investment % 99.99% 0.00%
Galicia Asset Management S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 20,000 20,000
Equity Investment % 100.00% 100.00%
Galicia Broker Asesores de Seguros S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 71,310 71,310
Equity Investment % 99.99% 99.99%
Galicia Capital US LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,000 1,000
Equity Investment % 100.00% 100.00%
Galicia Holdings US Inc.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,000 1,000
Equity Investment % 100.00% 100.00%
Galicia Investments LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 100 100
Equity Investment % 100.00% 100.00%
Galicia Retiro Compañía de Seguros S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 27,727,278 27,727,278
Equity Investment % 100.00% 100.00%
Galicia Securities S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 95,392,000 95,392,000
Equity Investment % 100.00% 100.00%
Galicia Seguros S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,830,887 1,830,887
Equity Investment % 100.00% 100.00%
Galicia Ventures LP    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,000 1,000
Equity Investment % 100.00% 100.00%
Galicia Warrants S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,000,000 1,000,000
Equity Investment % 100.00% 100.00%
GGAL Asset Management S.A. S.G.F.C.I.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,791,487 0
Equity Investment % 100.00% 0.00%
GGAL Holdings S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 748,712,987,065 0
Equity Investment % 100.00% 0.00%
GGAL Participaciones S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 11,513,929 0
Equity Investment % 100.00% 0.00%
GGAL Seguros S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 37,855,000 0
Equity Investment % 100.00% 0.00%
GGAL Seguros de Retiro S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 49,803,430 0
Equity Investment % 100.00% 0.00%
IGAM LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 100 100
Equity Investment % 100.00% 100.00%
INVIU S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 809,611,333 809,611,333
Equity Investment % 100.00% 100.00%
INVIU Capital Markets Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1 1
Equity Investment % 100.00% 100.00%
INVIU Manager Investment Ltd.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1 0
Equity Investment % 100.00% 0.00%
INVIU México S.A.P.I. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,500 0
Equity Investment % 100.00% 0.00%
INVIU Perú S.A.B. S.A.C.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 2,439,992 0
Equity Investment % 100.00% 0.00%
INVIU Technology Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1 1
Equity Investment % 100.00% 100.00%
INVIU Uruguay Agente de Valores S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 300,000,000 300,000,000
Equity Investment % 100.00% 100.00%
Naranja Digital Compañía Financiera S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,712,567,500 1,712,567,500
Equity Investment % 100.00% 100.00%
Nera Paraguay S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,000 0
Equity Investment % 100.00% 0.00%
Nera Uruguay S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 30,133 10,000
Equity Investment % 100.00% 100.00%
NHI(UK) Limited    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 19,000,000 0
Equity Investment % 100.00% 0.00%
N-xers S.A. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 405,816,000 0
Equity Investment % 100.00% 0.00%
Sudamericana Holding S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 32,717,429 32,717,429
Equity Investment % 100.00% 100.00%
Sudamericana Seguros Galicia S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 4,512,697,946 4,512,697,946
Equity Investment % 99.43% 99.43%
Tarjeta Naranja S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 2,896 2,896
Equity Investment % 100.00% 100.00%
Tarjetas Regionales S.A.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,756,704,458 1,756,704,458
Equity Investment % 100.00% 100.00%
Vestly Asset Management LLC    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 100 0
Equity Investment % 100.00% 0.00%
Vestly México S.A. de C.V.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 1,500 0
Equity Investment % 100.00% 0.00%
Well Assistance S.A.U.    
Disclosure of subsidiaries [line items]    
Direct and Indirect Shareholding 100,000 100,000
Equity Investment % 100.00% 100.00%