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HEDGE ACCOUNTING - Movements of other comprehensive income related to hedges of net investment in foreign operations (Details) - COP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | $ (797,514) | $ (6,675,329) | $ 2,565,637
Hedging financial liabilities in foreign currency | 760,997 | 2,549,821 | (1,198,919)
Hedging derivatives in foreign currency |  | 4,051,499 | $ (403,983)
Net OCI account | (36,517) | (74,009) |
Multi Financial Holding |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (393,836) |  |
Hedging financial liabilities in foreign currency | 385,379 |  |
Net OCI account | (8,457) |  |
BAC Holding International Corp and Multi Financial Holding [member] |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items |  | (6,991,093) |
Hedging financial liabilities in foreign currency |  | 2,756,328 |
Hedging derivatives in foreign currency |  | 4,048,523 |
Net OCI account |  | (186,242) |
Other subsidiaries and branches Banco de Bogota |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (137,731) | 105,255 |
Hedging financial liabilities in foreign currency | 118,577 | (3,470) |
Hedging derivatives in foreign currency |  | 2,976 |
Net OCI account | (19,154) | 104,761 |
Occidental Bank Barbados Ltd. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (30,956) | 23,104 |
Hedging financial liabilities in foreign currency | 30,956 | (23,104) |
Banco de Occidente Panama. S.A. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (42,091) | 26,838 |
Hedging financial liabilities in foreign currency | 42,091 | (26,838) |
Sociedad Portuaria El Cayao S.A. E.S.P. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (25,513) | 21,903 |
Hedging financial liabilities in foreign currency | 25,513 | (21,903) |
Gases del Pacifico S.A.C. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (32,050) | 26,391 |
Hedging financial liabilities in foreign currency | 23,144 | (18,919) |
Net OCI account | (8,906) | 7,472 |
Gas Natural de Lima y Callao S.A.C. - Calidda |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (106,851) | 90,633 |
Hedging financial liabilities in foreign currency | 106,851 | (90,633) |
Promigas Per S.A.C. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (4,763) | 3,996 |
Hedging financial liabilities in foreign currency | 4,763 | (3,996) |
Gases del Norte del Peru S.A.C. |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (23,718) | 17,639 |
Hedging financial liabilities in foreign currency | 23,718 | (17,639) |
Promigas Panam Corporation |  |  |
Hedges of net investment in foreign operations [abstract] |  |  |
Hedged Items | (5) | 5 |
Hedging financial liabilities in foreign currency | $ 5 | $ (5) |

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