Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Tax expense (benefit)	$ 14.4	$ (6.6)	$ 38.3	$ 15.1
Income Tax Benefit Related to Pension Settlement		17.9
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	$ 0.0	(49.0)	$ 0.0	(49.0)
Effective tax rate	29.30%		28.10%
Income Tax Benefit Executive Retirement & Related Costs		4.0
Executive retirement and related costs		$ 0.0		$ 10.9
Current income tax benefit, restructuring	$ 0.7		$ 8.1
Current Foreign Tax Expense (Benefit)	0.3
Restructuring and related charges	$ 2.3		$ 23.7