Accrued Liabilities (Accrued Liabilities and Restructuring Accrual) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Payroll related accruals	$ 68.0	$ 79.1
Customers deposits and prepayments	56.1	63.6
Taxes other than income	18.5	20.0
Customer rebates	32.4	29.4
Insurance claims and related expenses	6.9	13.4
Current income tax liabilities	19.3	4.8
Restructuring reserve	3.0	23.7
SEC and DOJ settlements	0.0	82.3
Other accrued liabilities	104.6	103.3
Total	$ 308.8	$ 419.6