Consolidated Statement of Changes in Equity
| CHF million | 
 | Note | 
 | Share-/ | 
 | Treasury stock | 
 | Share premium | 
 | Hedge accounting | 
 | Retained earnings | 
 | Currency translation | 
 | Equity attributable to shareholders | 
 | Non-controlling interest1 | 
 | Total equity | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance as at January 1, 2021 | 
 | 
 | 
 | 24.0 | 
 | – 26.8 | 
 | 334.4 | 
 | 12.0 | 
 | 4,696.1 | 
 | – 438.9 | 
 | 4,600.8 | 
 | 5.5 | 
 | 4,606.3 | ||||||||
| Net income | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | 490.5 | 
 | – | 
 | 490.5 | 
 | – | 
 | 490.5 | ||||||||
| Other comprehensive income | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – 1.1 | 
 | 660.9 | 
 | 14.4 | 
 | 674.2 | 
 | – 0.4 | 
 | 673.8 | ||||||||
| Capital increase | 
 | 
 | 0.2 | 
 | – | 
 | 119.0 | 
 | – | 
 | – | 
 | – | 
 | 119.2 | 
 | – | 
 | 119.2 | |||||||||
| Purchase of own shares and participation certificates | 
 | 
 | – | 
 | – 444.8 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | – 444.8 | 
 | – | 
 | – 444.8 | |||||||||
| Sale of own shares | 
 | 
 | – | 
 | 11.0 | 
 | – | 
 | – | 
 | 2.9 | 
 | – | 
 | 13.9 | 
 | – | 
 | 13.9 | |||||||||
| Share-based payment2 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | 28.8 | 
 | – | 
 | 28.8 | 
 | – | 
 | 28.8 | |||||||||
| Transactions with minorities | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | 5.1 | 
 | – | 
 | 5.1 | 
 | – 5.1 | 
 | – | ||||||||
| Reclass into retained earnings | 
 | 
 | 
 | – | 
 | – | 
 | – 88.6 | 
 | – | 
 | 88.6 | 
 | – | 
 | – | 
 | – | 
 | – | ||||||||
| Distribution of profit | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | – 264.1 | 
 | – | 
 | – 264.1 | 
 | – | 
 | – 264.1 | ||||||||
| Balance as at December 31, 2021 | 
 | 
 | 
 | 24.2 | 
 | – 460.6 | 
 | 364.8 | 
 | 10.9 | 
 | 5,708.8 | 
 | – 424.5 | 
 | 5,223.6 | 
 | – | 
 | 5,223.6 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||||
| Balance as at January 1, 2022 | 
 | 
 | 
 | 24.2 | 
 | – 460.6 | 
 | 364.8 | 
 | 10.9 | 
 | 5,708.8 | 
 | – 424.5 | 
 | 5,223.6 | 
 | – | 
 | 5,223.6 | ||||||||
| Net income | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | 569.7 | 
 | – | 
 | 569.7 | 
 | – | 
 | 569.7 | ||||||||
| Other comprehensive income | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | 11.9 | 
 | – 616.4 | 
 | – 33.5 | 
 | – 638.0 | 
 | – | 
 | – 638.0 | ||||||||
| Capital increase | 
 | 
 | 0.1 | 
 | – | 
 | 82.6 | 
 | – | 
 | – | 
 | – | 
 | 82.7 | 
 | – | 
 | 82.7 | |||||||||
| Purchase of own shares and participation certificates | 
 | 
 | – | 
 | – 555.2 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | – 555.2 | 
 | – | 
 | – 555.2 | |||||||||
| Sale of own shares | 
 | 
 | – | 
 | 0.6 | 
 | – | 
 | – | 
 | 0.2 | 
 | – | 
 | 0.8 | 
 | – | 
 | 0.8 | |||||||||
| Capital decrease (destruction) | 
 | 
 | – 0.4 | 
 | 444.9 | 
 | – 94.4 | 
 | – | 
 | – 350.1 | 
 | – | 
 | – | 
 | – | 
 | – | |||||||||
| Share-based payment2 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | 1.1 | 
 | – | 
 | 1.1 | 
 | – | 
 | 1.1 | |||||||||
| Distribution of profit | 
 | 
 | 
 | – | 
 | – | 
 | – | 
 | – | 
 | – 284.1 | 
 | – | 
 | – 284.1 | 
 | – | 
 | – 284.1 | ||||||||
| Balance as at December 31, 2022 | 
 | 
 | 
 | 23.9 | 
 | – 570.3 | 
 | 353.0 | 
 | 22.8 | 
 | 5,029.2 | 
 | – 458.0 | 
 | 4,400.6 | 
 | – | 
 | 4,400.6 | ||||||||
| 
 | ||||||||||||||||||||||||||||