v3.24.2.u1
Selling, general and administrative expenses - Narrative (Details) - CHF (SFr)
SFr in Millions
6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Disclosure of attribution of expenses by nature to their function [line items]    
Other long-term employee benefits SFr 131.4 SFr 100.0
Selling, general and administrative expense    
Disclosure of attribution of expenses by nature to their function [line items]    
Depreciation and amortisation expense 44.0 24.4
Cost of sales    
Disclosure of attribution of expenses by nature to their function [line items]    
Depreciation expense SFr 4.4 SFr 3.5