v3.24.0.1
Share Repurchases and Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Jan. 01, 2024
Oct. 31, 2020
Equity, Class of Treasury Stock [Line Items]            
Reserve for stock issuance (in shares) 2,400,000 2,400,000        
Share repurchase authorized amount           $ 2,000.0
Number of shares repurchased (in shares)   1,800,000 1,600,000 2,200,000    
Amount paid   $ 261.8 $ 203.5 $ 252.2    
Weighted average cost per share (in dollars per share)   $ 145.72 $ 124.02 $ 116.09    
Stock repurchased and pending settlement (in shares) 0 0 0 0    
Remaining authorized purchase capacity $ 3,000.0 $ 3,000.0        
Quarterly dividend per share (in dollars per share) $ 0.535 $ 2.06 $ 1.91 $ 1.77    
Cash dividends declared   $ 650.0 $ 603.4 $ 563.0    
Quarterly dividend payable $ 168.3 168.3 156.4      
Retained Earnings            
Equity, Class of Treasury Stock [Line Items]            
Cash dividends declared   $ 650.0 $ 603.4 $ 563.0    
Subsequent Event            
Equity, Class of Treasury Stock [Line Items]            
Share repurchase authorized amount         $ 3,000.0  
2021 Plan            
Equity, Class of Treasury Stock [Line Items]            
Reserve for stock issuance (in shares) 11,700,000 11,700,000