INCOME TAX - Withholdings tax on dividends paid between entities (Details) - COP ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of income tax [abstract] | ||
| Withholdings tax on dividends paid to entities | $ (14,784) | $ (15,885) |