Lines of Credit and Financing Arrangements (Eligible Amounts Available and Beneficial Interest Sold) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Eligible amounts available and beneficial interests sold
Eligible amount available under the ASP on qualified accounts receivable	$ 380.0	$ 290.0
Less: Beneficial interest transferred	(377.3)	(276.0)
Remaining amount available	$ 2.7	$ 14.0