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Defined Benefit Pension Plans and Other Post-Employment Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Income) for Defined Benefit Pension Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost $ 0.8 $ 1.0 $ 2.5 $ 2.9
Interest cost 6.3 6.7 18.9 20.3
Expected return on plan assets (7.5) (7.5) (22.7) (22.5)
Amortization of net prior service cost 0.1 0.1 0.2 0.2
Amortization of net actuarial loss 1.4 1.5 3.9 4.3
Net periodic benefit cost 1.1 1.8 2.8 5.2
Settlement charge (income) 0.5 (0.3) 0.4 (0.3)
Total benefit cost 1.6 1.5 3.2 4.9
U.S.        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 0.0 0.1 0.0 0.1
Interest cost 1.6 1.6 4.8 4.9
Expected return on plan assets (1.8) (1.7) (5.5) (5.2)
Amortization of net prior service cost 0.0 0.0 0.0 0.0
Amortization of net actuarial loss 0.5 0.5 1.3 1.3
Net periodic benefit cost 0.3 0.5 0.6 1.1
Settlement charge (income) 0.0 0.0 0.0 0.0
Total benefit cost 0.3 0.5 0.6 1.1
International        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 0.8 0.9 2.5 2.8
Interest cost 4.7 5.1 14.1 15.4
Expected return on plan assets (5.7) (5.8) (17.2) (17.3)
Amortization of net prior service cost 0.1 0.1 0.2 0.2
Amortization of net actuarial loss 0.9 1.0 2.6 3.0
Net periodic benefit cost 0.8 1.3 2.2 4.1
Settlement charge (income) 0.5 (0.3) 0.4 (0.3)
Total benefit cost $ 1.3 $ 1.0 $ 2.6 $ 3.8