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RISK MANAGEMENT - Risk management - Value at risk - Tabular disclosure (Details) - COP ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Interest rate risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | $ 440,804 | $ 440,531
Interest rate risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 217,031 | 173,355
Interest rate risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 299,985 | 121,194
Interest rate risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 46,209 | 84,749
Interest rate risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 221,409 | 160,195
Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 18,822 | 29,363
Currency risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 160,165 | 171,517
Currency risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 717 | 15,681
Currency risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,221 | 5,796
Currency risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 10 | 98
Currency risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 4,381 | 23,090
Currency risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 597 | 976
Equity price risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 37,830 | 3,870
Equity price risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 6,586 | 147
Equity price risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,221 | 6,557
Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 1,973 | 2,541
Mutual funds | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 429 | 143,705
Mutual funds | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 607 | 83,479
Mutual funds | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 22,926 | 20,548
Mutual funds | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 785 | 11,864
Mutual funds | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,057 | 692
Mutual funds | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 3,094 | 788
Bottom of range [member] | Interest rate risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 423,347 | 426,736
Bottom of range [member] | Interest rate risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 179,858 | 173,355
Bottom of range [member] | Interest rate risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 82,783 | 121,194
Bottom of range [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 46,209 | 82,312
Bottom of range [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 190,139 | 148,170
Bottom of range [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 12,190 | 25,698
Bottom of range [member] | Currency risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 105,390 | 87,497
Bottom of range [member] | Currency risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 717 | 99
Bottom of range [member] | Currency risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 5,050 | 4,290
Bottom of range [member] | Currency risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 1 | 9
Bottom of range [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 4,381 | 3,828
Bottom of range [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 115 | 93
Bottom of range [member] | Equity price risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 3,891 | 3,759
Bottom of range [member] | Equity price risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 148 | 140
Bottom of range [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,086 | 6,017
Bottom of range [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 1,710 | 1,404
Bottom of range [member] | Mutual funds | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 106 | 108,165
Bottom of range [member] | Mutual funds | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 569 | 75,869
Bottom of range [member] | Mutual funds | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,255 | 12,209
Bottom of range [member] | Mutual funds | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 221 | 158
Bottom of range [member] | Mutual funds | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,057 | 692
Bottom of range [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 457 | 788
Weighted average [member] | Interest rate risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 428,765 | 441,281
Weighted average [member] | Interest rate risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 205,998 | 196,810
Weighted average [member] | Interest rate risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 114,642 | 130,739
Weighted average [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 65,592 | 99,727
Weighted average [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 209,769 | 172,466
Weighted average [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 24,500 | 40,927
Weighted average [member] | Currency risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 138,671 | 133,241
Weighted average [member] | Currency risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 3,662 | 3,354
Weighted average [member] | Currency risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 6,783 | 5,618
Weighted average [member] | Currency risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 46 | 48
Weighted average [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 16,757 | 15,882
Weighted average [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 978 | 577
Weighted average [member] | Equity price risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 12,573 | 4,182
Weighted average [member] | Equity price risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 687 | 143
Weighted average [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,501 | 9,308
Weighted average [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 2,347 | 2,579
Weighted average [member] | Mutual funds | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 3,860 | 118,107
Weighted average [member] | Mutual funds | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 15,259 | 80,639
Weighted average [member] | Mutual funds | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 16,714 | 15,952
Weighted average [member] | Mutual funds | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 6,930 | 2,090
Weighted average [member] | Mutual funds | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 8,187 | 1,087
Weighted average [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 2,650 | 5,504
Top of range [member] | Interest rate risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 440,804 | 460,435
Top of range [member] | Interest rate risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 251,416 | 243,326
Top of range [member] | Interest rate risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 299,985 | 144,932
Top of range [member] | Interest rate risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 86,967 | 120,545
Top of range [member] | Interest rate risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 227,913 | 185,935
Top of range [member] | Interest rate risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 38,914 | 61,686
Top of range [member] | Currency risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 175,945 | 179,646
Top of range [member] | Currency risk [member] | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 11,894 | 15,681
Top of range [member] | Currency risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 7,759 | 6,711
Top of range [member] | Currency risk [member] | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 153 | 106
Top of range [member] | Currency risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 24,799 | 40,422
Top of range [member] | Currency risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 2,900 | 1,682
Top of range [member] | Equity price risk [member] | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 37,830 | 4,650
Top of range [member] | Equity price risk [member] | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 6,586 | 148
Top of range [member] | Equity price risk [member] | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 8,007 | 13,350
Top of range [member] | Equity price risk [member] | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 3,091 | 3,379
Top of range [member] | Mutual funds | Banco de Bogota S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 13,085 | 143,705
Top of range [member] | Mutual funds | Banco de Occidente S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 85,455 | 83,479
Top of range [member] | Mutual funds | Banco Popular S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 22,926 | 20,548
Top of range [member] | Mutual funds | Banco Comercial AV Villas S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 14,175 | 11,864
Top of range [member] | Mutual funds | Corporacion Financiera Colombiana S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | 9,856 | 1,609
Top of range [member] | Mutual funds | Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of financial assets [line items] |  |
Value at risk | $ 5,829 | $ 15,922

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