Debt (Receivables-Related Borrowings) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Receivables facility	$ 350.0	$ 350.0
August 2015 Expanded Receivables Facility [Member]
Maximum borrowing capacity	400.0
Receivables Facility [Member]
Receivables Facility, Collateral At Period End, Value	$ 804.4
Receivables Facility [Member]
Debt Instrument, Maturity Date	Aug. 15, 2016