6.3.5 Other liabilities
| Other liabilities | 2021 | 2020 | ||
| Non- current | Current | Non- current | Current | |
| Security deposits | – | 55 | – | 41 |
| Non-depreciable portion of the value of gas service lines provided by gas buyers | 24 | 40 | 64 | 40 |
| Prepaid deliveries | – | 344 | – | 236 |
| Accruals and deferred income | – | 306 | – | 160 |
| Liabilities under licences, rights to geological information and mining rights | 33 | – | 34 | – |
| Other deferred income | 1 | 625 | 1 | 212 |
| Other | 72 | 1,006 | 78 | 280 |
| Total | 130 | 2,376 | 177 | 969 |