INCOME TAX - Deferred tax assets and liabilities - Statement of financial position (Details) - COP ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets and liabilities [abstract]
Deferred tax asset, balances on statement of financial position	$ 1,628,201	$ 1,280,912
Deferred tax liability, balances on statement of financial position	(5,616,464)	(5,546,640)
Net	$ (3,988,263)	$ (4,265,728)	$ (3,211,452)	$ (2,567,101)

The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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