v3.26.1
Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance $ 4,048.4 $ 3,905.9 $ 4,026.2 $ 3,794.1
Other comprehensive (loss) income, net of tax (12.3) 125.4 (56.0) 179.1
Ending balance 4,006.6 4,010.4 4,006.6 4,010.4
Accumulated Other Comprehensive Income (Loss)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance 13.9 (77.2) 57.6 (130.9)
Other comprehensive income (loss) before reclassification adjustments (12.2) 125.6 (55.7) 179.5
Gain reclassified from Accumulated other comprehensive income (loss) (0.2) (0.3) (0.4) (0.5)
Tax impact 0.1 0.1 0.1 0.1
Other comprehensive (loss) income, net of tax (12.3) 125.4 (56.0) 179.1
Ending balance 1.6 48.2 1.6 48.2
Cumulative Translation Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance 5.3 (83.6) 48.8 (137.5)
Other comprehensive income (loss) before reclassification adjustments (12.2) 125.6 (55.7) 179.5
Gain reclassified from Accumulated other comprehensive income (loss) 0.0 0.0 0.0
Tax impact 0.0 0.0 0.0
Other comprehensive (loss) income, net of tax (12.2) 125.6 (55.7) 179.5
Ending balance (6.9) 42.0 (6.9) 42.0
Pension and Other Postretirement Adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance 8.6 6.4 8.8 6.6
Other comprehensive income (loss) before reclassification adjustments 0.0 0.0 0.0 0.0
Gain reclassified from Accumulated other comprehensive income (loss) (0.2) (0.3) (0.4) (0.5)
Tax impact 0.1 0.1 0.1 0.1
Other comprehensive (loss) income, net of tax (0.1) (0.2) (0.3) (0.4)
Ending balance $ 8.5 $ 6.2 $ 8.5 $ 6.2