Capital adequacy - Internally assessed economic capital excl. buffer (Details) - SEK (kr) kr in Billions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Capital adequacy [Abstract] | ||
| Total liquid assets | kr 59.1 | kr 64.1 |
| Net liquidity outflows | 10.3 | 14.9 |
| Liquidity outflows | 22.9 | 26.0 |
| Liquidity inflows | kr 13.2 | kr 11.2 |
| Liquidity Coverage Ratio | 660.00% | 518.00% |
| Available stable funding | kr 244.3 | kr 272.5 |
| Required stable funding | kr 202.8 | kr 211.0 |
| Net Stable Funding Ratio | 120.00% | 129.00% |