XML 103 R90.htm IDEA: XBRL DOCUMENT v3.22.1
Shareholders' Equity (Narrative) (Details)
SFr / shares in Units, $ / shares in Units, SFr in Millions
 1 Months Ended 12 Months Ended
May 31, 2022
SFr / shares
May 31, 2022
USD ($)
$ / shares
Sep. 30, 2021
SFr / shares
Sep. 30, 2021
USD ($)
$ / shares
Apr. 30, 2021
USD ($)
Sep. 30, 2020
SFr / shares
Sep. 30, 2020
USD ($)
$ / shares
May 31, 2020
USD ($)
shares
Sep. 30, 2019
SFr / shares
Sep. 30, 2019
USD ($)
$ / shares
Mar. 31, 2022
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
$ / shares
Mar. 31, 2020
USD ($)
$ / shares
Mar. 31, 2022
CHF (SFr)
SFr / shares
shares
Mar. 31, 2021
SFr / shares
shares
Dec. 31, 2020
shares
Mar. 31, 2017
USD ($)
shares
Shareholder's equity                                  
Nominal share capital issued (CHF) | SFr                           SFr 43.3      
Conditionally authorized shares (in shares) | shares                     173,106,620     173,106,620   17,310,662  
Shares, par value (in CHF per share) | SFr / shares                           SFr 0.25 SFr 0.25    
Treasury shares (in shares) | shares                     7,854,600     7,854,600 4,799,000    
Shares that may be issued out of conditional capital (in shares) | shares                     50,000,000     50,000,000 50,000,000    
Dividends                                  
Unappropriated retained earnings                     $ 1,800,000,000     SFr 1,700.0      
Payment of cash dividends | $       $ 159,400,000     $ 146,700,000     $ 124,200,000 $ 159,410,000 $ 146,705,000 $ 124,180,000        
Cash dividends paid per share (in dollars/CHF per share) | (per share)     SFr 0.87 $ 0.95   SFr 0.79 $ 0.87   SFr 0.73 $ 0.74 $ 0.95 $ 0.87 $ 0.74        
Legal Reserves                                  
Minimum percentage of annual net income to be retained in legal reserves                     5.00%            
Threshold of legal reserves as a percentage of issued and outstanding aggregate par value per share capital at which a minimum percentage of annual net income is no longer required to be retained                     20.00%     20.00%      
Portion of appropriated retained earnings representing legal reserves | $                     $ 10,400,000            
Subsequent Event                                  
Dividends                                  
Cash dividends declared per share (in dollars/CHF per share) | (per share) SFr 0.96 $ 1.04                              
Common stock dividends | $   $ 172,100,000                              
Common Stock Capital Shares Reserved For Future Issuance Employee Equity Incentive Plans                                  
Shareholder's equity                                  
Shares that may be issued out of conditional capital (in shares) | shares                     25,000,000     25,000,000      
Common Stock Capital Shares Reserved For Future Issuance Conversion Rights Under Future Convertible Bond Issuance                                  
Shareholder's equity                                  
Shares that may be issued out of conditional capital (in shares) | shares                     25,000,000     25,000,000      
March 2017 program                                  
Share Repurchases                                  
Share repurchase, authorized amount | $                                 $ 250,000,000
Shares approved (in shares) | shares                                 17,300,000
May 2020                                  
Share Repurchases                                  
Share repurchase, authorized amount | $         $ 1,000,000,000     $ 250,000,000     $ 1,000,000,000            
Shares approved (in shares) | shares               17,300,000     17,311,000     17,311,000      
Period for which repurchase program will remain in effect               3 years                  
Increase in authorized amount | $         $ 750,000,000                        
Amount of authorized shares available for repurchase | $                     $ 423,700,000