HEDGE ACCOUNTING - Financial instruments for hedging - assets and liabilities (Details) - COP ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial liabilities [line items] | ||
| Assets | $ 236,558 | $ 54,019 |
| Liabilities | 34,842 | 21,658 |
| Forward contract [member] | ||
| Disclosure of financial liabilities [line items] | ||
| Assets | 637 | 10,642 |
| Liabilities | 9,741 | 5,250 |
| Forward contracts, Foreign currency to buy | ||
| Disclosure of financial liabilities [line items] | ||
| Assets | 78 | 10,623 |
| Liabilities | 9,741 | 5,185 |
| Forward contracts, Foreign currency to sell | ||
| Disclosure of financial liabilities [line items] | ||
| Assets | 559 | 19 |
| Liabilities | 65 | |
| Swap contract [member] | ||
| Disclosure of financial liabilities [line items] | ||
| Assets | 235,921 | 43,377 |
| Liabilities | 25,101 | 16,408 |
| Interest rate swap | ||
| Disclosure of financial liabilities [line items] | ||
| Assets | 235,921 | 43,377 |
| Liabilities | $ 25,101 | $ 16,408 |