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EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Equity transactions (Details) - COP ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 22, 2020
Disclosure of classes of share capital [line items] |  |  |  |  |
Liquid investment | $ 14,788,750 | $ 13,234,832 |  |  |
Multi Financial Group Inc |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Dividends paid, other shares |  |  | $ 14,612 |  |
Proportion of ownership interest acquired |  |  |  | 99.60% | 96.60%
Percentage of voting equity interests acquired |  |  |  | 99.60% | 96.60%
Banco de Bogota S.A. |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Percentage of economic interest held | 68.93% | 68.93% | 68.74% |  |
Corporacion Financiera Colombiana S.A. |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Percentage of economic interest held | 40.53% |  |  |  |
Corficolombiana S.A |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Liquid investment | $ 15,091 |  |  |  |
Preferred shares recognized value |  | $ 15,091 | $ 19,929 |  |
Percentage of economic interest held |  | 40.40% | 39.98% | 39.58% |
Colombiana de Licitaciones y Concesiones S.A.S |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Percentage of economic interest held | 40.53% | 40.53% | 40.40% |  |

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