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Provisions for employees' benefits - Movement in profit and loss and in other comprehensive income (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Profit or loss
Interest expense	$ 1,088,249	$ 679,098	$ 661,187
Current service cost	115,031	147,480	132,352
Past service cost	107,231	114,162	129,328
Remeasurements	0	0	(211)
Benefits plan costs recognized in profit or loss	1,310,511	940,740	922,656
Other comprehensive income
Recognized in other comprehensive income	(4,460,534)	(1,254,514)	2,456,667
Deferred tax	1,726,261	586,260	(679,510)
Other comprehensive income, net of taxes	(2,734,273)	(668,254)	1,777,157
Pension and bonds
Other comprehensive income
Recognized in other comprehensive income	(2,664,204)	156,755	1,401,578
Healthcare
Other comprehensive income
Recognized in other comprehensive income	(1,714,227)	(1,429,423)	991,050
Other
Other comprehensive income
Recognized in other comprehensive income	$ (82,103)	$ 18,154	$ 64,039

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- Definition

Total costs of the benefit plans those recognized in profit or loss during the period.

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Current service costs of the benefit plans recognized in profit or loss.

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Interest costs of the benefit plans recognized in profit or loss.

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The amount of other comprehensive income, net of tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset).

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Past service costs of the benefit plans recognized in profit or loss.

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The amount of profit (loss), net of tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset).

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The increase (decrease) in accumulated deferred tax recognised in other comprehensive income due to change in the tax rate. [Refer: Other comprehensive income]

+ References

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The amount of other comprehensive income, before tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income; Defined benefit plans [member]; Plan assets [member]; Net defined benefit liability (asset)] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from gain (loss) on remeasurement in other comprehensive income]

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