Statement of Consolidated Shareholders' Deficit (USD $) In Millions, unless otherwise specified	Total	Preferred Stock [Member]	Common Stock [Member]	Capital Surplus [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock, At Cost [Member]
Beginning balance at Dec. 31, 2014				$ 2,290.9	$ (2,240.0)	$ (432.8)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	(0.5)			(1.7)
Issuance of equity upon conversion of Series B Notes				18.5
Net loss					(21.6)
Reclassification of net pension actuarial losses to net loss, net of tax						4.1
Foreign currency translation adjustments						(4.7)
Ending balance at Mar. 31, 2015	$ (479.7)	$ 0	$ 0.3	$ 2,307.7	$ (2,261.6)	$ (433.4)	$ (92.7)