Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning of Period	$ 12.4	$ 12.2	$ 13.3
Charge (Benefit) to Expenses	8.5	10.4	11.3
To (from) Other Accounts	0.0	0.0	0.0
Deductions	8.5	10.2	12.4
End of Period	12.4	12.4	12.2
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning of Period	64.4	68.3	56.8
Charge (Benefit) to Expenses	(5.5)	(1.1)	14.1
To (from) Other Accounts	(0.5)	(2.8)	(2.6)
Deductions	0.0	0.0	0.0
End of Period	$ 58.4	$ 64.4	$ 68.3