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Summary of Significant Accounting Policies - Schedule of Components of Accumulated Other Comprehensive Income (loss) (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Total $ 6,717.6 $ 6,385.2 $ 6,347.6 $ 5,729.4 $ 5,740.0 $ 5,784.5
Accumulated Other Comprehensive Loss            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Total (189.5) $ (288.7) (329.8) $ (324.0) $ (315.0) $ (297.3)
Currency translation adjustments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Total (186.9)   (327.9)      
Unrealized losses on defined benefit plans            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Total $ (2.6)   $ (1.9)