CUSTOMER DEPOSITS - Deposits - Additional information (Details) - COP ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of customer deposits [line items] | ||
| Fixed term deposit certificates | $ 95,105,917 | $ 96,329,827 |
| Later than one year [member] | ||
| Disclosure of customer deposits [line items] | ||
| Fixed term deposit certificates | $ 19,631,973 | $ 16,764,038 |