Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Foreign currency gain (loss)	$ 2.3	$ (0.3)	$ 10.9	$ (14.1)
Equity income	4.6	2.0	7.3	1.1
Expected return on pension assets/amortization	2.7	2.3	5.4	4.7
Other miscellaneous income (expense)	0.7	2.3	0.9	(0.2)
Total other income (expense), net	$ 10.3	$ 6.3	$ 24.5	$ (8.5)