Balance sheet
| 
       Assets CHF million  | 
    
       
  | 
    
       Notes  | 
    
       
  | 
    
       31.3.2022  | 
    
       
  | 
    
       31.3.2021  | 
  
| 
       Cash and cash equivalents  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       152.3  | 
    
       
  | 
    
       935.9  | 
  
| 
       Financial assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.0  | 
    
       
  | 
    
       80.0  | 
  
| 
       Other receivables  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.0  | 
    
       
  | 
    
       0.1  | 
  
| 
       – Group companies  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       5.4  | 
    
       
  | 
    
       5.6  | 
  
| 
       Prepaid expenses  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       2.3  | 
    
       
  | 
    
       1.6  | 
  
| 
       Total current assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       160.1  | 
    
       
  | 
    
       1,023.3  | 
  
| 
       Financial assets  | 
    
       
  | 
    
       2.2  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1.5  | 
    
       
  | 
    
       2.1  | 
  
| 
       – Group companies  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1,567.9  | 
    
       
  | 
    
       1,893.0  | 
  
| 
       Investments  | 
    
       
  | 
    
       2.3  | 
    
       
  | 
    
       477.4  | 
    
       
  | 
    
       314.4  | 
  
| 
       Total non-current assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       2,046.8  | 
    
       
  | 
    
       2,209.5  | 
  
| 
       Total assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       2,206.9  | 
    
       
  | 
    
       3,232.8  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Liabilities and shareholders’ equity CHF million  | 
    
       
  | 
    
       Notes  | 
    
       
  | 
    
       31.3.2022  | 
    
       
  | 
    
       31.3.2021  | 
  
| 
       Trade account payables  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.0  | 
    
       
  | 
    
       0.1  | 
  
| 
       Short-term interest-bearing liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       4.7  | 
    
       
  | 
    
       4.7  | 
  
| 
       –Group companies  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       18.7  | 
    
       
  | 
    
       
  | 
  
| 
       Bond  | 
    
       
  | 
    
       2.4  | 
    
       
  | 
    
       330.0  | 
    
       
  | 
    
       360.0  | 
  
| 
       Other short-term liabilities to third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       24.8  | 
    
       
  | 
    
       0.1  | 
  
| 
       Accrued liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       8.2  | 
    
       
  | 
    
       4.0  | 
  
| 
       Total short-term liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       386.5  | 
    
       
  | 
    
       368.9  | 
  
| 
       Bonds  | 
    
       
  | 
    
       2.4  | 
    
       
  | 
    
       866.2  | 
    
       
  | 
    
       1,199.7  | 
  
| 
       Other long-term liabilities to third parties  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.2  | 
    
       
  | 
    
       0.2  | 
  
| 
       Total long-term liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       866.4  | 
    
       
  | 
    
       1,200.0  | 
  
| 
       Total liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1,252.9  | 
    
       
  | 
    
       1,568.9  | 
  
| 
       Share capital  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       3.2  | 
    
       
  | 
    
       3.2  | 
  
| 
       Legal reserves  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Reserves from capital contribution  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.0  | 
    
       
  | 
    
       18.5  | 
  
| 
       – General reserves  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1.8  | 
    
       
  | 
    
       1.8  | 
  
| 
       – Legal reserves for treasury shares held by subsidiaries  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       11.4  | 
    
       
  | 
    
       17.0  | 
  
| 
       Voluntary retained earnings  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Balance carried forward  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1,457.3  | 
    
       
  | 
    
       1,714.9  | 
  
| 
       – Net profit for the year  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       189.9  | 
    
       
  | 
    
       198.3  | 
  
| 
       Treasury shares  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       – Treasury shares to offset with reserves from capital contribution  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0.0  | 
    
       
  | 
    
       (18.5)  | 
  
| 
       – Treasury shares  | 
    
       
  | 
    
       2.5  | 
    
       
  | 
    
       (709.6)  | 
    
       
  | 
    
       (271.3)  | 
  
| 
       Total shareholders’ equity  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       954.0  | 
    
       
  | 
    
       1,663.9  | 
  
| 
       Total liabilities and shareholders’ equity  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       2,206.9  | 
    
       
  | 
    
       3,232.8  |