Liquidity risk - Schedule of Assets Pledged as Security (Details) - CHF (SFr) SFr in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of Financial Risk Management [Abstract] | ||
| Trade receivables | SFr 266.4 | SFr 280.8 |
| Inventory | 340.4 | 211.7 |
| Assets pledged | SFr 606.9 | SFr 492.5 |
| X | ||||||||||
- Definition The amount of inventories pledged as security for liabilities. [Refer: Inventories] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Assets Pledged As Security For Liabilities No definition available.
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| X | ||||||||||
- Definition Disclosure Of Financial Risk Management [Abstract] No definition available.
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| X | ||||||||||
- Definition Trade Receivables Pledged As Security For Liabilities No definition available.
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