Provisions for employees' benefits - Credit ratings of the issuers and counterparties in assets (Details) - COP ($) $ in Billions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | $ 11,530 | $ 11,730 |
| AAA | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 6,525 | 6,696 |
| Nation | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 4,029 | 4,293 |
| AA+ | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 380 | 344 |
| AA | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 159 | 124 |
| BB+ | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 145 | 0 |
| F1+ | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 16 | 45 |
| BRC1+ | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 8 | 32 |
| Other ratings | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | 44 | 114 |
| Rating not available | ||
| Disclosure of defined benefit plans | ||
| Plan assets, at fair value | $ 224 | $ 82 |