Other interim disclosures (Details 4) |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2026 |
|
| Switzerland | ||
| Statement [line items] | ||
| Applicable Swiss blended tax rate | 13.04% | |
| New applicable Swiss blended tax rate | 14.53% | |
| Applicable Swiss cantonal tax rate | 6.50% | |
| New applicable Swiss cantonal tax rate | 8.50% | |
| US | ||
| Statement [line items] | ||
| Applicable US Federal tax rate | 21.00% |