| Other employment benefit plans | Diecember 31, 2017 | December 31, 2016 |
| In millions of COP | ||
| Current severance obligation(1) | 106,334 | 104,352 |
| Other bonuses and short-term benefits | 336,285 | 336,018 |
| Other employment benefit plans | 442,619 | 440,370 |
| (1) | See severance obligation |