3.3 Other income and expenses
| Note | 2020 | 2019 | |
|---|---|---|---|
| Compensation, penalties, and fines received | 32 | 26 | |
| Exchange differences related to operating activities | 68 | (9) | |
| Measurement and exercise of derivative financial instruments | 202 | 239 | |
| Change in inventory write-downs | Note 6.2.1. | 350 | (258) |
| Change in impairment losses on trade and other receivables | (60) | 42 | |
| Change in other impairment losses | – | 1 | |
| Provision for decommissioning, restoration and environmental remediation costs | Note 6.3.2. | (38) | 12 |
| Change in provision for certificates of origin and energy efficiency certificates | Note 6.3.3. | (232) | (206) |
| Change in other provisions | (105) | (39) | |
| Change in underlift/overlift* | 16 | (12) | |
| Cost of merchandise and materials sold | (242) | (103) | |
| Other income and expenses | (150) | (135) | |
| Total other income and expenses | (159) | (442) |
*For more information, see Note 3.1. in the part concerning revenue from sales of crude oil.