Sale of Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 201.7	$ 196.6	$ 367.6	$ 340.6
Charge related to sale of receivables	$ 4.9	$ 4.0	$ 8.9	$ 6.9