v3.24.2.u1
Right-of-use assets - Schedule of Right-of-Use Assets (Details) - CHF (SFr)
SFr in Millions
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance SFr 214.0 SFr 151.6
Lease modification 3.2 (3.3)
Additions 121.0 20.2
Disposals (0.1) (0.2)
Depreciation (28.8) (13.0)
Currency Translation 9.9 (2.5)
Right-of-use assets ending balance 319.1 152.9
Gross carrying amount    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 283.1 192.7
Right-of-use assets ending balance 419.2 205.0
Accumulated depreciation    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance (69.1) (41.1)
Right-of-use assets ending balance (100.1) (52.1)
Storage    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 65.3 16.8
Lease modification 3.0 (4.1)
Additions 57.4 0.0
Disposals 0.0 (0.1)
Depreciation (14.2) (2.8)
Currency Translation 5.2 (0.2)
Right-of-use assets ending balance 116.7 9.6
Storage | Gross carrying amount    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 87.5 28.7
Right-of-use assets ending balance 154.4 23.9
Storage | Accumulated depreciation    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance (22.1) (11.9)
Right-of-use assets ending balance (37.7) (14.3)
Stores & showrooms    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 55.1 37.9
Lease modification 0.0 0.1
Additions 49.2 12.3
Disposals (0.1) 0.0
Depreciation (8.2) (4.2)
Currency Translation 3.1 (1.5)
Right-of-use assets ending balance 99.2 44.6
Stores & showrooms | Gross carrying amount    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 70.5 45.6
Right-of-use assets ending balance 123.3 55.9
Stores & showrooms | Accumulated depreciation    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance (15.4) (7.7)
Right-of-use assets ending balance (24.1) (11.2)
Offices    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 90.8 94.2
Lease modification 0.2 0.7
Additions 13.8 6.6
Disposals 0.0 0.0
Depreciation (5.5) (5.0)
Currency Translation 1.5 (0.7)
Right-of-use assets ending balance 100.7 95.8
Offices | Gross carrying amount    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 116.9 111.0
Right-of-use assets ending balance 132.7 117.4
Offices | Accumulated depreciation    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance (26.1) (16.8)
Right-of-use assets ending balance (31.9) (21.6)
Cars    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 2.8 2.8
Lease modification 0.0 0.0
Additions 0.5 1.3
Disposals 0.0 (0.2)
Depreciation (0.9) (1.0)
Currency Translation 0.1 (0.1)
Right-of-use assets ending balance 2.5 2.9
Cars | Gross carrying amount    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance 8.1 7.4
Right-of-use assets ending balance 8.8 7.9
Cars | Accumulated depreciation    
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets beginning balance (5.4) (4.6)
Right-of-use assets ending balance SFr (6.3) SFr (4.9)