Quarterly Data (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 299.1	$ 248.2	$ 270.6	$ 281.7	$ 342.3	$ 308.6	$ 323.0	$ 316.5	$ 1,099.6		$ 1,290.4		$ 1,460.9
Gross profit	48.1	45.7	52.4	56.1	51.5	57.2	54.0	54.0	202.3		216.7		226.4
Operating loss	(310.4)	(6.5)	(10.3)	(8.9)	(12.1)	(8.3)	(9.3)	(3.4)	(336.1)		(33.1)		(69.7)
Net loss	$ (310.2)	$ (6.3)	$ (12.0)	$ (12.2)	$ (12.9)	$ (14.1)	$ (12.5)	$ (7.2)	$ (340.7)		$ (46.7)		$ (158.5)
Loss per common share, net loss [Abstract]
Basic (dollars per share)	$ (8.34)	$ (0.17)	$ (0.32)	$ (0.33)	$ (0.34)	$ (0.38)	$ (0.33)	$ (0.19)	$ (9.09)	[1]	$ (1.24)	[1]	$ (4.19)
Diluted (dollars per share)	$ (8.34)	$ (0.17)	$ (0.32)	$ (0.33)	$ (0.34)	$ (0.38)	$ (0.33)	$ (0.19)	$ (9.09)	[1]	$ (1.24)	[1]	$ (4.19)

[1] The sum of the quarterly loss per share may not equal the annual loss per share due to changes in average shares outstanding.