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Equity - Share Repurchases, Dividends, Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 3 Months Ended
Apr. 23, 2024
Feb. 29, 2024
Mar. 31, 2024
Mar. 31, 2023
Share Repurchase Plan        
Value of shares authorized by the Board of Directors to be repurchased under share repurchase plan     $ 1,500.0  
Remaining value of shares authorized by the Board of Directors to be repurchased under share repurchase plan     $ 1,440.0  
Common Stock and Additional Paid-In (in Shares)        
Stock repurchased during period, shares     0 160,224
Average cost per share       $ 242.86
Average cost of shares       $ 38.9
Dividends        
Common stock quarterly dividend per share (in dollars per share)     $ 1.10 $ 1.00
Common stock dividend quarterly declared and paid per share (in dollars per share) $ 1.10   $ 1.10 $ 1.00
Dividends paid     $ 63.2 $ 59.0
Additional share-based compensation disclosures        
Total unrecognized compensation cost     $ 102.8  
Weighted average recognition period for unrecognized compensation cost (in years)     2 years  
Restricted stock units (RSUs)        
Additional share-based compensation disclosures        
Vesting period (in years)   3 years 3 years 3 years
Changes        
Granted (in shares)   100,669    
Restricted stock units (RSUs) and performance stock units (PSUs)        
Common Stock and Additional Paid-In (in Shares)        
Payments to tax authorities on employees' behalf for shares withheld related to share settlements     $ 23.9 $ 37.2
Dividends        
Dividend equivalents paid     $ 2.1 $ 3.0
Changes        
Unvested at the beginning of the period (in units)     437,239  
Granted (in shares)     170,611  
Vested (in units)     (3,770)  
Cancelled or forfeited (in units)     (5,556)  
Unvested at the end of the period (in units)     598,524  
Shares reserved for future grants (all plans)     1,334,811  
Weighted Average Grant Date Fair Value        
Unvested at the beginning of the period (in dollars per unit)     $ 213.06  
Granted (in dollars per unit)     289.07  
Vested (in dollars per unit)     211.16  
Cancelled or forfeited (in dollars per unit)     214.23  
Unvested at the end of the period (in dollars per unit)     $ 234.73  
Performance stock units (PSUs)        
Additional share-based compensation disclosures        
Vesting period (in years)   3 years 3 years 3 years
Return on assets result period   3 years 3 years 3 years
Changes        
Granted (in shares)   69,942    
Performance stock units (PSUs) | Maximum        
Stock Based Compensation        
Share of Common Stock   2 2 2