v3.26.1
RISK MANAGEMENT - Risk management - Value at risk - Tabular disclosure (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Interest rate risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk $ 53,274 $ 160,445
Interest rate risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 148,047 379,009
Interest rate risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 251,328 205,759
Interest rate risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 15,601 22,193
Interest rate risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 261,509 252,417
Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 8,508 7,623
Currency risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 255,463 155,113
Currency risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 3,273 1,971
Currency risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 32,932 51,982
Currency risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 49 148
Currency risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 32,284 51,653
Currency risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 64 275
Equity price risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,240 2,077
Equity price risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 175 15,090
Equity price risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk   14,918
Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 2,627 1,790
Mutual funds | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,431 568
Mutual funds | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,195 992
Mutual funds | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 20,045 18,314
Mutual funds | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 7 225
Mutual funds | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,027 1,108
Mutual funds | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 2,183 1,074
Bottom of range [member] | Interest rate risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 53,274 160,445
Bottom of range [member] | Interest rate risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 148,047 264,941
Bottom of range [member] | Interest rate risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 220,418 205,759
Bottom of range [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 12,001 22,193
Bottom of range [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 204,636 220,886
Bottom of range [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 5,892 7,623
Bottom of range [member] | Currency risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 146,593 91,087
Bottom of range [member] | Currency risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 837 1,078
Bottom of range [member] | Currency risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 32,932 19,869
Bottom of range [member] | Currency risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 2 4
Bottom of range [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 32,284 19,172
Bottom of range [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 10 7
Bottom of range [member] | Equity price risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,240 1,947
Bottom of range [member] | Equity price risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 175 6,884
Bottom of range [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk   6,731
Bottom of range [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,948 1,624
Bottom of range [member] | Mutual funds | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 423 411
Bottom of range [member] | Mutual funds | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,195 934
Bottom of range [member] | Mutual funds | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 18,364 18,201
Bottom of range [member] | Mutual funds | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 7 121
Bottom of range [member] | Mutual funds | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,021 983
Bottom of range [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 591 782
Weighted average [member] | Interest rate risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 122,866 427,563
Weighted average [member] | Interest rate risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 189,910 322,068
Weighted average [member] | Interest rate risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 253,696 328,266
Weighted average [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 15,501 29,979
Weighted average [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 240,097 271,679
Weighted average [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 7,093 14,368
Weighted average [member] | Currency risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 194,097 141,196
Weighted average [member] | Currency risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 7,838 3,402
Weighted average [member] | Currency risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 44,440 39,424
Weighted average [member] | Currency risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 38 84
Weighted average [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 43,485 38,723
Weighted average [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 342 233
Weighted average [member] | Equity price risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,799 10,929
Weighted average [member] | Equity price risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 12,995 11,331
Weighted average [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 21,975 11,457
Weighted average [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 2,740 2,090
Weighted average [member] | Mutual funds | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 913 1,549
Weighted average [member] | Mutual funds | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,344 991
Weighted average [member] | Mutual funds | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 19,547 19,668
Weighted average [member] | Mutual funds | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 110 251
Weighted average [member] | Mutual funds | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,139 1,200
Weighted average [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,293 2,365
Top of range [member] | Interest rate risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 156,064 552,647
Top of range [member] | Interest rate risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 238,845 379,009
Top of range [member] | Interest rate risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 296,841 410,228
Top of range [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 21,498 43,936
Top of range [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 280,691 341,730
Top of range [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 8,508 16,520
Top of range [member] | Currency risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 255,463 166,334
Top of range [member] | Currency risk [member] | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 16,567 9,151
Top of range [member] | Currency risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 58,254 59,084
Top of range [member] | Currency risk [member] | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 157 472
Top of range [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 56,181 55,653
Top of range [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,143 419
Top of range [member] | Equity price risk [member] | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 2,083 37,644
Top of range [member] | Equity price risk [member] | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 26,680 15,090
Top of range [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 26,505 14,918
Top of range [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk 4,488 2,654
Top of range [member] | Mutual funds | Banco de Bogota S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,431 2,788
Top of range [member] | Mutual funds | Banco de Occidente S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,441 1,031
Top of range [member] | Mutual funds | Banco Popular S.A.    
Disclosure of financial assets [line items]    
Value at risk 20,286 23,969
Top of range [member] | Mutual funds | Banco Comercial AV Villas S.A.    
Disclosure of financial assets [line items]    
Value at risk 281 447
Top of range [member] | Mutual funds | Corporacion Financiera Colombiana S.A.    
Disclosure of financial assets [line items]    
Value at risk 1,341 1,424
Top of range [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones, Cesantias y del CCAI Porvenir S.A.    
Disclosure of financial assets [line items]    
Value at risk $ 2,183 $ 6,478