Income Taxes (Provision) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ (0.8)	$ (23.6)	$ (14.5)
State	(1.6)	3.7	1.4
Foreign	7.1	4.0	9.6
Current income tax provision (benefit)	4.7	(15.9)	(3.5)
Deferred:
Federal	(8.7)	0.0	(41.7)
State	(3.0)	0.0	0.0
Foreign	1.9	(0.2)	(0.7)
Deferred income tax benefit	(9.8)	(0.2)	(42.4)
Income tax benefit	(5.1)	(16.1)	(45.9)
Domestic	(33.2)	(106.2)	(152.8)
Foreign	28.8	22.4	23.3
Loss before income taxes	(4.4)	(83.8)	(129.5)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ 12.2	$ 0.2	$ 42.7