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HEDGE ACCOUNTING - Fair value and interest expense (Details) - COP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about hedging instruments [line items] |  |  |
Change in fair value | $ (1,372) | $ 79,980 |
Interest of the derivative designated as the hedging instrument | (49,794) | (63,333) | $ (1,242)
Banco de Bogota S.A. |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Change in fair value | 5,960 | 79,864 |
Interest of the derivative designated as the hedging instrument | (46,406) | (61,905) |
Banco de Occidente S.A. |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Change in fair value | (83) | 116 |
Interest of the derivative designated as the hedging instrument | (1,183) | $ (1,428) |
Interest income of the derivative designated as the hedging instrument | 595 |  |
Banco Popular S.A. |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Change in fair value | (7,332) |  |
Interest of the derivative designated as the hedging instrument | $ (2,205) |  |

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- Definition The gain (loss) on the change in fair value of the hedging instrument used as a basis for recognising hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 24A -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_24A_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of interest expense on financial liabilities designated at fair value through profit or loss. [Refer: Interest expense; Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of interest income on financial assets designated at fair value through profit or loss. [Refer: Interest income; Financial assets at fair value through profit or loss, designated upon initial recognition or subsequently] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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