v3.25.4
FINANCIAL INSTRUMENTS & RISK - Carrying Amount of Financial Liabilities (Details) - CHF (SFr)
SFr in Millions
Dec. 31, 2025
Dec. 31, 2024
Related party long-term payables    
Current financial liabilities SFr 558.8 SFr 586.7
Non-current financial liabilities 4,598.0 4,747.9
Financial liabilities 5,156.8 5,334.6
Third-party debt    
Related party long-term payables    
Current financial liabilities 387.2 350.0
Non-current financial liabilities 3,950.0 4,326.8
Financial liabilities 4,337.2 4,676.8
Accrued Interest    
Related party long-term payables    
Current financial liabilities 98.5 57.4
Non-current financial liabilities 0.0 0.0
Financial liabilities 98.5 57.4
Derivatives    
Related party long-term payables    
Current financial liabilities 73.1 179.3
Non-current financial liabilities 648.0 421.1
Financial liabilities SFr 721.1 SFr 600.4