Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 2,556.1	$ 2,531.7	$ 2,377.4	$ 2,453.6
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(216.7)	(180.8)
Translation loss on derivative instruments, net of income tax benefit of $(9.8) and $(16.4), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	4.5	(18.4)
Translation loss on long-term intercompany loans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(131.1)	(133.6)
Defined benefit pension plans and Retiree health care plan | Defined benefit pension plans, net of income tax benefit of $(22.7) and $(22.8), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(56.2)	(56.7)
Defined benefit pension plans and Retiree health care plan | Retiree health care plan, net of income taxes of $1.6 on both dates
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(0.1)	0.1
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (399.6)	$ (389.4)	$ (437.8)	$ (397.3)