ESTIMATION OF FAIR VALUE - Sensitivity analysis (Details) - COP ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Weighted average cost of capital, measurement input [member] | ||
| Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items] | ||
| +100 bps | $ (688,849) | $ (927,375) |
| -100 bps | 1,057,443 | 1,416,415 |
| Growth rate | ||
| Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items] | ||
| +100 bps | 598,455 | 888,065 |
| -100 bps | $ (417,801) | $ (617,439) |