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Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 6,498.3 $ 6,184.8 $ 6,498.3 $ 6,184.8 $ 6,407.6 $ 6,409.9 $ 6,155.2 $ 6,142.5
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent 0.0 (1.1) 0.3 (1.1)        
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent (22.1) 11.1 (59.8) 37.9        
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (63.5) (65.3) (63.5) (65.3) (63.5) (63.8) (64.2) (64.2)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 0.0 (1.1) 0.3 (1.1)        
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.0 0.0 0.0        
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent 0.0 (1.1) (0.3) (1.1)        
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (587.5) (546.1) (587.5) (546.1) (565.4) (527.7) (557.2) (584.0)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (22.1) 11.1 (59.8) 37.9        
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.0 0.0 0.0        
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent (22.1) 11.1 (59.8) 37.9        
AOCI Attributable to Parent [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (651.0) (611.4) (651.0) (611.4) $ (628.9) $ (591.5) $ (621.4) $ (648.2)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (22.1) 10.0 (59.5) 36.8        
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.0 0.0 0.0        
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent $ (22.1) $ 10.0 $ (59.5) $ 36.8