Lines of Credit and Financing Arrangements (Eligible Amounts Available and Beneficial Interest Sold) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Eligible amounts available and beneficial interests sold
Eligible amount available under the ASP on qualified accounts receivable	$ 225.0	$ 290.0
Less: Beneficial interest sold	(225.0)	(276.0)
Remaining amount available	$ 0.0	$ 14.0