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Share-Based Compensation Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation expense $ 70.0 $ 50.5
Share-based Payment Arrangement, Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Grants (in shares) 936,837 729,013
Grant date fair value $ 106.0 $ 70.4
Compensation expense 0.0 0.0
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 32.6 $ 21.8
Performance Stock Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Grants (in shares) 211,906 200,066
Grant date fair value $ 24.1 $ 19.5
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount 16.2 9.9
Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation expense 52.6 38.4
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 5.7 $ 4.2