In CHF million | Notes | Share capital | Share premium | Treasury shares | Foreign currency trans- lation differ- ences | Gains/ losses recog- nised directly in equity | Retained earnings | Total share- holders' equity | Minority interest | Total equity | ||||||||||
| Balance as at 1 January | 1 385 | 2 459 | –66 | 61 | 305 | 3 435 | 7 579 | 272 | 7 851 | |||||||||||
| Changes in foreign currency translation differences | – | – | – | 64 | – | – | 64 | 0 | 64 | |||||||||||
| Changes in gains/losses recognised directly in equity | – | – | – | – | –1 115 | – | –1 115 | 1 | –1 114 | |||||||||||
| Disposals of subsidiaries | – | – | – | –2 | 1 | – | –1 | –251 | –252 | |||||||||||
| Net profit | – | – | – | – | – | 1 345 | 1 345 | 23 | 1 368 | |||||||||||
| Total recognised income and expense for the period | – | – | – | 62 | –1 114 | 1 345 | 293 | –227 | 66 | |||||||||||
| Reduction in par value | 27 | –245 | 11 | – | – | – | – | –234 | – | –234 | ||||||||||
| Conversion of convertible debt | 27 | 49 | 173 | – | – | – | – | 222 | – | 222 | ||||||||||
| Options on own shares | – | –7 | – | – | – | – | –7 | – | –7 | |||||||||||
| Obligation to purchase own shares | – | –28 | – | – | – | – | –28 | – | –28 | |||||||||||
| Equity-settled share-based payments | – | 9 | – | – | – | – | 9 | – | 9 | |||||||||||
| Purchases of treasury shares | – | – | –1 313 | – | – | – | –1 313 | – | –1 313 | |||||||||||
| Sales of treasury shares | – | –5 | 761 | – | – | – | 756 | – | 756 | |||||||||||
| Acquisitions of minority interest | – | – | – | – | – | – | – | –12 | –12 | |||||||||||
| Capital contributions from minority interest | – | – | – | – | – | – | – | 36 | 36 | |||||||||||
| Dividends | – | – | – | – | – | – | – | –12 | –12 | |||||||||||
| Balance as at 31 December | 1 189 | 2 612 | –618 | 123 | –809 | 4 780 | 7 277 | 57 | 7 334 | |||||||||||