Loans and borrowings - Fair value of loans (Details) - Level 2 - COP ($) $ in Billions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Loans and borrowings | ||
| Fair value of loans | $ 104,836 | $ 117,137 |
| Local currency | ||
| Loans and borrowings | ||
| Fair value of loans | 11,746 | 12,002 |
| Foreign currency | ||
| Loans and borrowings | ||
| Fair value of loans | 93,090 | 105,135 |
| Bonds | Local currency | ||
| Loans and borrowings | ||
| Fair value of loans | 4,904 | 5,153 |
| Bonds | Foreign currency | ||
| Loans and borrowings | ||
| Fair value of loans | 77,440 | 83,721 |
| Commercial and syndicate loans and related parties | Local currency | ||
| Loans and borrowings | ||
| Fair value of loans | 6,024 | 5,973 |
| Commercial and syndicate loans and related parties | Foreign currency | ||
| Loans and borrowings | ||
| Fair value of loans | 15,072 | 20,784 |
| Lease liabilities | Local currency | ||
| Loans and borrowings | ||
| Fair value of loans | 818 | 876 |
| Lease liabilities and related parties | Foreign currency | ||
| Loans and borrowings | ||
| Fair value of loans | $ 578 | $ 630 |