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REPORTING ENTITY - Textual (Details) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Banco de Bogota S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 68.93% |  |
Proportion of ownership interest in subsidiary | 68.93% | 68.93% | 68.74%
Banco de Occidente S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 72.27% |  |
Proportion of ownership interest in subsidiary | 72.27% |  |
Banco Popular S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 93.74% |  |
Proportion of ownership interest in subsidiary | 93.74% |  |
Banco Comercial AV Villas S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 80.39% |  |
Proportion of ownership interest in subsidiary | 79.87% |  |
Corporacion Financiera Colombiana S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 55.73% |  |
Proportion of ownership interest in subsidiary | 40.53% |  |
Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of voting rights held in subsidiary | 100.00% |  |
Proportion of ownership interest in subsidiary | 75.76% |  |
Grupo Aval Limited |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% |  |

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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2023-03-23 + Details
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