CUSTOMER DEPOSITS - Deposits - Tabular disclosure (Details) - COP ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of customer deposits [line items] | ||
| Checking accounts | $ 23,598,235 | $ 24,579,536 |
| Savings accounts | 88,238,541 | 79,614,904 |
| Other deposits | 462,545 | 347,910 |
| Total demand deposits | 112,299,321 | 104,542,350 |
| Fixed term deposit certificates | 95,105,917 | 96,329,827 |
| Total Customers deposits | 207,405,238 | 200,872,177 |
| Colombia, Pesos | ||
| Disclosure of customer deposits [line items] | ||
| Total Customers deposits | 191,297,967 | 168,771,838 |
| Foreign currency | ||
| Disclosure of customer deposits [line items] | ||
| Total Customers deposits | $ 16,107,271 | $ 32,100,339 |