EMPLOYEE BENEFIT PLANS - Other long term benefits (Details) - Defined benefit obligation at present value - Other long term benefits - COP ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
EMPLOYEE BENEFIT PLANS
Present value of the obligation as of January 1	$ 465,744	$ 465,046
Current service cost	24,106	47,339
Interest cost	39,973	27,490
Benefits paid	(44,601)	(45,086)
Net actuarial (gain) / loss due to changes in assumptions	(47,997)	(31,998)
Net actuarial (gain) / loss due to plan experience	2,369	(2,465)
Foreign currency translation effect	6,879	5,418
Defined obligation, unfunded as of December 31	$ 446,473	$ 465,744

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)]

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The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments that result in remeasurements of the net defined benefit liability (asset). Experience adjustments deal with the effects of differences between the previous actuarial assumptions and what has actually occurred. [Refer: Net defined benefit liability (asset)]

+ References

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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

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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The increase (decrease) in the net defined benefit liability (asset) resulting from changes in foreign exchange rates. [Refer: Net defined benefit liability (asset)]

+ References

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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

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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 [member]]

+ References

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The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

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