Income Taxes (Provision) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ (14.5)	$ (24.0)	$ (23.9)
State	1.4	2.5	11.3
Foreign	9.6	2.7	5.3
Current income tax benefit	(3.5)	(18.8)	(7.3)
Deferred:
Federal	(41.7)	5.5	(0.2)
State	0	0.5	0
Foreign	(0.7)	(2.2)	0
Deferred income tax provision (benefit)	(42.4)	3.8	(0.2)
Income tax benefit	(45.9)	(15.0)	(7.5)
Domestic	(152.8)	(173.8)	(366.1)
Foreign	23.3	22.3	4.2
Net Loss Before Income Taxes	$ (129.5)	$ (151.5)	$ (361.9)