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ESTIMATION OF FAIR VALUE - Reconciliation Level 3 of the fair value hierarchy - Tabular disclosure (Details) - COP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | $ 301,181,596 |  |
Changes in fair value recognised in profit or loss | 350,919 | $ 323,685 | $ 278,751
Assets at the end of the period | 327,859,383 | 301,181,596 |
Recurring fair value measurement [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 44,913,854 |  |
Assets at the end of the period | 54,083,268 | 44,913,854 |
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 7,740,172 |  |
Assets at the end of the period | 8,707,511 | 7,740,172 |
Financial Assets In Concession [Member] | Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 3,830,916 | 3,507,231 | 3,228,480
Changes in fair value recognised in profit or loss | 350,919 | 323,685 | 278,751
Assets at the end of the period | 4,181,835 | 3,830,916 | 3,507,231
Debt securities [member] | Recurring fair value measurement [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 30,442,045 |  |
Assets at the end of the period | 38,989,037 | 30,442,045 |
Debt securities [member] | Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 1,889 | 1,383 | 88,821
Changes in fair value recognised in profit or loss | (464) | 506 | (58,845)
Changes in fair value recognised in OCI |  |  | 671,348
Additions |  |  | 227,854
Sales/redemptions |  |  | (783,552)
Loss of control in subsidiary |  |  | (71,248)
Transfers from level 2 to level 3 |  |  | (72,995)
Assets at the end of the period | 1,425 | 1,889 | 1,383
Equity securities | Recurring fair value measurement [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 7,377,523 |  |
Assets at the end of the period | 8,677,809 | 7,377,523 |
Equity securities | Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 2,770,226 | 2,302,280 | 1,357,164
Changes in fair value recognised in profit or loss | 224,673 | 204,276 | 80,408
Changes in fair value recognised in OCI | (6,819) | 39,566 | 16,613
Additions | 326,096 | 830,718 | 918,046
Sales/redemptions | (1,199) | (606,614) | (13,062)
Discontinued operations |  |  | 1
Loss of control in subsidiary |  |  | (56,599)
Transfers from level 2 to level 3 |  |  | (291)
Assets at the end of the period | 3,312,977 | 2,770,226 | 2,302,280
Biological assets [member] | Recurring fair value measurement [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 230,672 |  |
Assets at the end of the period | 238,339 | 230,672 |
Biological assets [member] | Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 230,672 | 212,630 | 154,986
Changes in fair value recognised in profit or loss | 7,589 | 18,601 | 56,859
Additions | 26,572 | 26,118 | 28,368
Sales/redemptions | (26,494) | (26,677) | (27,583)
Assets at the end of the period | 238,339 | 230,672 | 212,630
Investment property [member] | Recurring fair value measurement [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 906,469 |  |
Assets at the end of the period | 972,935 | 906,469 |
Investment property [member] | Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Assets at the beginning of the period | 906,469 | 880,963 | 852,935
Changes in fair value recognised in profit or loss | 35,841 | 84,958 | 55,930
Changes in fair value recognised in OCI | 16,935 | 557 | 797
Transfers to non-current assets held for sale | 22,370 | 95,593 | 31,184
Reclassification | 32,470 | (4,160) | (4,493)
Effect of movements in exchange rates | 6,966 | (7,079) | 2,282
Additions | 37,859 | 56,307 | 70,081
Sales/redemptions | (85,975) | (200,670) | (127,753)
Assets at the end of the period | $ 972,935 | $ 906,469 | $ 880,963

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