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EMPLOYEE BENEFITS - Post-employment and long-term benefits movements (Details) - COP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Post-Employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Balance at the beginning of the year | $ 363,183 | $ 331,411 |
Balance at the end of the year | 381,114 | 363,183 | $ 331,411
Long-Term Benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Balance at the beginning of the year | 159,329 | 133,085 |
Balance at the end of the year | 180,545 | 159,329 | 133,085
Present value of defined benefit obligation [member] | Post-Employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Balance at the beginning of the year | 380,207 | 349,587 | 522,196
Service costs | 2,985 | 2,690 | 3,845
Interests cost | 39,923 | 41,736 | 30,778
Past Service Costs |  | (2,079) |
Net defined benefit liability asset After Adjustment | 423,115 | 391,934 | 556,819
Actuarial Loss (Gain) arising from changes in demographic assumptions | 95 | (753) |
Actuarial Loss (Gain) arising from changes in financial assumptions | 2,309 | 26,832 | (69,967)
Actuarial Loss arising from changes in the experience | 40,293 | 27,472 | 2,167
Total changes in actuarial assumptions | 42,697 | 53,551 | (67,800)
Payments to employees | (63,202) | (61,589) | (51,306)
Liquidation of entities |  |  | (432)
Loss of control in subsidiary |  |  | (98,024)
Discontinued operations |  |  | 6,251
Effect of movements in exchange rates | 2,630 | (3,689) | 4,079
Balance at the end of the year | 405,240 | 380,207 | 349,587
Present value of defined benefit obligation [member] | Long-Term Benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Balance at the beginning of the year | 159,329 | 133,085 | 134,831
Service costs | 15,905 | 14,765 | 14,815
Interests cost | 15,439 | 16,699 | 8,949
Past Service Costs | 4,795 | 10,063 |
Net defined benefit liability asset After Adjustment | 195,468 | 174,612 | 158,595
Actuarial Loss (Gain) arising from changes in demographic assumptions | 1,010 | (7,342) |
Actuarial Loss (Gain) arising from changes in financial assumptions | 2,036 | 473 | (14,149)
Actuarial Loss arising from changes in the experience | 9,812 | 17,313 | 10,456
Total changes in actuarial assumptions | 12,858 | 10,444 | (3,693)
Payments to employees | (27,781) | (25,727) | (21,817)
Balance at the end of the year | 180,545 | 159,329 | 133,085
Plan assets [member] | Post-Employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Balance at the beginning of the year | (17,024) | (18,176) | (46,840)
Interests cost | (1,052) | (794) | (427)
Loss of control in subsidiary |  |  | 27,269
Remeasurements on plan assets | (3,385) | (1,788) | 5,885
Effect of movements in exchange rates | (2,665) | 3,734 | (4,063)
Balance at the end of the year | $ (24,126) | $ (17,024) | $ (18,176)

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- Definition Decrease (increase) in net defined benefit liability (asset) resulting from liquidation of entities + References No definition available. + Details
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- Definition Decrease (increase) in net defined benefit liability (asset) resulting from loss of control in subsidiary. + References No definition available. + Details
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- Definition The adjusted amount of deficit or surplus in a defined benefit plan, after interest and service cost adjustment. + References No definition available. + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c_iii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from changes in foreign exchange rates. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_140_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Net defined benefit liability (asset); Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_d&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan in respect of settlements. [Refer: Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements; Net defined benefit liability (asset); Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_g&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [domain]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c_i&doctype=Standard -URIDate 2024-03-27 + Details
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