XML 133 R96.htm IDEA: XBRL DOCUMENT v3.22.4
Shareholders' Equity - Schedule of Treasury Shares (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Movement In Treasury Shares [Roll Forward]      
Beginning balance $ 209.1 $ 167.1 $ 174.4
Purchase of treasury shares (11.1) (6.4)  
Cancellation of treasury shares   0.0  
Utilization of treasury shares (0.4) 0.0 (0.1)
Ending balance 207.3 209.1 167.1
June 2021 Share Buy-Back Program      
Movement In Treasury Shares [Roll Forward]      
Purchase of treasury shares   (6.4)  
Cancellation of treasury shares   (0.7)  
Treasury shares      
Movement In Treasury Shares [Roll Forward]      
Beginning balance (9.6) (4.0) (4.0)
Purchase of treasury shares (11.1) (6.4)  
Cancellation of treasury shares   0.7  
Utilization of treasury shares 0.3 0.1  
Ending balance $ (20.4) $ (9.6) $ (4.0)