INCOME TAX - Estimates to recover income tax assets and settle income tax liabilities - Current tax (Details) - COP ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of income tax [line items] | ||
| Current tax asset | $ 2,871,411 | $ 3,149,902 |
| Current tax liability | (203,908) | (247,502) |
| Later than one year [member] | ||
| Disclosure of income tax [line items] | ||
| Current tax asset | 2,581,653 | 2,362,257 |
| Current tax liability | (203,908) | (247,502) |
| Not later than one year [member] | ||
| Disclosure of income tax [line items] | ||
| Current tax asset | $ 289,758 | $ 787,645 |