3.4 Net finance costs
| 2020 | 2019 | |
|---|---|---|
| Interest on debt, including valuation (net of leases; including fees on debt incurred) | 3 | (48) |
| Interest on lease liabilities | (75) | (69) |
| Foreign exchange differences | 47 | 15 |
| Measurement and exercise of derivative financial instruments not designated for hedge accounting | 12 | (7) |
| Fair value measurement of financial assets | (2) | (1) |
| Other net finance costs | 50 | 56 |
| Total net finance costs | 35 | (54) |