Basis of preparation and material accounting policies - CRR (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| 0.1–1.2 | |
| Disclosure of initial application of standards or interpretations [line items] | |
| Probability of default increase | 0.15% |
| 2.1–3.3 | |
| Disclosure of initial application of standards or interpretations [line items] | |
| Probability of default increase | 0.30% |