Earnings per share (Details) - CHF (SFr)
SFr / shares in Units, shares in Millions, SFr in Millions |
12 Months Ended |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Net income/(loss) attributable to shareholders |
|
|
|
| Net income/(loss) attributable to shareholders |
SFr (1,650)
|
SFr 2,669
|
SFr 3,419
|
| Net income attributable to shareholders for basic earnings per share |
(1,650)
|
2,669
|
3,419
|
| Available for common shares |
(1,650)
|
2,669
|
3,419
|
| Net income/(loss) attributable to shareholders for diluted earnings per share |
(1,650)
|
2,669
|
3,419
|
| Available for common shares |
SFr (1,650)
|
SFr 2,669
|
SFr 3,419
|
| Weighted-average shares outstanding |
|
|
|
| Weighted-average shares outstanding for basic earnings per share available for common shares (in shares) |
2,460.5
|
2,457.0
|
2,524.2
|
| Dilutive share options and warrants (in shares) |
0.0
|
1.8
|
2.7
|
| Dilutive share awards (in shares) |
0.0
|
67.6
|
59.9
|
| Weighted-average shares outstanding for diluted earnings per share available for common shares (in shares) |
2,460.5
|
2,526.4
|
2,586.8
|
| Weighted-average shares outstanding for basic/diluted earnings per share available for mandatory convertible securities |
106.6
|
|
|
| Basic earnings per share available for common shares (CHF) |
|
|
|
| Basic earnings/(loss) per share (in CHF per share) |
SFr (0.67)
|
SFr 1.09
|
SFr 1.35
|
| Diluted earnings per share available for common shares (CHF) |
|
|
|
| Diluted earnings/(loss) per share (in CHF per share) |
SFr (0.67)
|
SFr 1.06
|
SFr 1.32
|
| Weighted-average potential dilutive common shares |
10.2
|
6.2
|
7.9
|
| Weighted-average share options and warrants (antidilutive) |
0.7
|
|
|
| Weighted-average share awards (antidilutive) |
76.5
|
|
|