Financial liabilities - Narrative (Details) - CHF (SFr) SFr in Millions |
Jul. 07, 2023 |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Contingent liability for guarantees | |||
| Disclosure of financial liabilities [line items] | |||
| Estimated financial effect of contingent liabilities | SFr 168.2 | SFr 155.6 | |
| Bank overdraft facility four, CHF | |||
| Disclosure of financial liabilities [line items] | |||
| Credit facility, maximum borrowing capacity | SFr 700.0 | ||
| Line of credit facility option to increase amount | SFr 200.0 | ||
| Initial term of facility agreement | 3 years | ||
| Borrowings maturity extension | 1 year | ||
| Borrowings | 0.0 | 0.0 | |
| Bank overdraft facility four, CHF | Contingent liability for guarantees | |||
| Disclosure of financial liabilities [line items] | |||
| Estimated financial effect of contingent liabilities | 167.9 | 155.3 | |
| Other, Customer Refund Liabilities | |||
| Disclosure of financial liabilities [line items] | |||
| Liabilities arising from financing activities | SFr 15.9 | SFr 12.4 |