Sale of Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 196.6	$ 188.8	$ 340.6	$ 366.2
Charge related to sale of receivables	$ 4.0	$ 3.6	$ 6.9	$ 6.9