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Financing Arrangements (Schedule of Long-term Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 30, 2017	Aug. 13, 2015
Carrying Value at
Finance leases	$ 17.2
Finance leases		$ 20.7			$ 50.0
Other	23.5	24.7
Total debt	568.5	573.1
Less: Current portion of long-term debt and short-term debt	(16.8)	(17.9)
Less: Unamortized debt issuance costs	(6.5)	(7.7)
Total long-term debt, net	$ 545.2	547.5
Revolving credit facility
Debt Instrument [Line Items]
Senior notes, interest rate	2.85%
Carrying Value at
Total debt	$ 173.2	165.1
Foreign Line of Credit
Debt Instrument [Line Items]
Senior notes, interest rate	3.25%
Carrying Value at
Total debt	$ 4.6	12.6
Senior Notes 6.625% Due 2027 \| Senior Notes
Debt Instrument [Line Items]
Senior notes, interest rate	6.625%		6.625%	6.625%
Carrying Value at
Total debt	$ 350.0	$ 350.0