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Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Treasury stock, acquired (in shares) 1.0 4.1 17.6 14.1
Payments for repurchase of common stock $ 25.0 $ 190.0 $ 591.2 $ 551.4
Value of treasury stock acquired 25.0 190.0 591.2 551.4
Performance-based Restricted Stock Units        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Value of treasury stock acquired 0.2 $ 0.3 46.0 $ 14.4
February 2016 Program        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Remaining shares under share repurchase authorization $ 809.5   $ 809.5