v3.26.1
NON-CONTROLLING INTEREST - Non-controlling interests (Details) - COP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of noncontrolling interest [line items]      
Assets $ 348,936,677 $ 327,859,383  
Liabilities 314,193,836 294,696,465  
Net Income 3,215,172 2,191,477 $ 2,177,116
OCI - Controlling 2,918,637 2,937,610 2,739,643
Cash flow from operating activities 7,384,970 782,289 $ 6,005,501
Corporacion Financiera Colombiana S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 61,507,860 60,633,378  
Liabilities 44,486,345 44,307,226  
Net Income 1,173,732 865,830  
OCI - Controlling 970,481 843,617  
Cash flow from operating activities (455,422) (521,510)  
Banco de Bogota S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 156,164,359 150,719,626  
Liabilities 138,870,595 133,877,249  
Net Income 1,275,624 1,098,248  
OCI - Controlling (174,736) 22,520  
Cash flow from operating activities 5,020,131 2,288,431  
Banco de Occidente S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 88,163,285 78,400,182  
Liabilities 81,904,685 72,414,391  
Net Income 582,138 481,048  
OCI - Controlling (93,803) (47,342)  
Cash flow from operating activities 1,421,590 22,940  
Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 4,525,469 3,913,208  
Liabilities 920,640 672,796  
Net Income 703,010 654,117  
OCI - Controlling (30,075) (18,642)  
Cash flow from operating activities 295,678 295,257  
Banco Comercial AV Villas S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 21,932,939 19,167,670  
Liabilities 20,216,035 17,477,831  
Net Income 19,016 (134,365)  
OCI - Controlling 131,291 117,164  
Cash flow from operating activities 233,295 (822,967)  
Banco Popular S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 91,590,495 88,381,205  
Liabilities 72,572,874 70,152,858  
Net Income 1,190,999 534,340  
OCI - Controlling 110,148 66,216  
Cash flow from operating activities 797,343 (925,651)  
Aval Casa de Bolsa S.A      
Disclosure of noncontrolling interest [line items]      
Assets 194,559 188,911  
Liabilities 134,697 139,218  
Net Income 10,893 807  
OCI - Controlling (2,841) (2,898)  
Cash flow from operating activities (3,803) 30,100  
Aval Fiduciaria S.A.      
Disclosure of noncontrolling interest [line items]      
Assets 171,791 281,792  
Liabilities 98,656 224,934  
Net Income 16,354 12,924  
OCI - Controlling (7,422) (7,346)  
Cash flow from operating activities (64,799) $ 35,671  
Aval Banca de Inversion S.A.S.      
Disclosure of noncontrolling interest [line items]      
Assets 25,121    
Liabilities 7,766    
Net Income 9,355    
Cash flow from operating activities $ 15,770