| In CHF million | ||||||||||||||||||||
Notes | Share capital | Share premium | Treasury shares | Foreign currency translation differences | Gains/losses recognised directly in equity | Retained earnings | Total share- holders' equity | Non- controlling interests | Total equity | |||||||||||
Balance as at 1 January | 1 189 | 2 612 | –618 | 123 | –809 | 4 780 | 7 277 | 57 | 7 334 | |||||||||||
Total net comprehensive income | – | – | – | –318 | 364 | 350 | 396 | –17 | 379 | |||||||||||
Reduction in par value | 26 | –596 | 49 | – | – | – | – | –547 | – | –547 | ||||||||||
Conversion of convertible debt | 26 | 3 | 20 | – | – | – | – | 23 | – | 23 | ||||||||||
Obligation to purchase own shares | – | –12 | – | – | – | – | –12 | – | –12 | |||||||||||
Equity-settled share-based payments | – | 9 | – | – | – | – | 9 | 0 | 9 | |||||||||||
Purchases of treasury shares | – | – | –711 | – | – | – | –711 | – | –711 | |||||||||||
Sales of treasury shares | – | 12 | 150 | – | – | – | 162 | – | 162 | |||||||||||
Disposals of subsidiaries | – | – | 12 | – | – | – | 12 | –17 | –5 | |||||||||||
Acquisitions of subsidiaries | – | – | – | – | – | – | – | 14 | 14 | |||||||||||
Capital contributions from non-controlling interests | – | – | – | – | – | – | – | 10 | 10 | |||||||||||
Dividends | – | – | – | – | – | – | – | –4 | –4 | |||||||||||
Balance as at end of period | 596 | 2 690 | –1 167 | –195 | –445 | 5 130 | 6 609 | 43 | 6 652 | |||||||||||