Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Operating Revenue	$ 1,444	$ 1,278	$ 1,481
Operating Expenses
Selling	383	280	333
Cost of service (exclusive of depreciation and amortization)	479	358	363
General and administrative	209	118	162
Depreciation and amortization	765	419	252
Impairment charge	458	0	801
Total Operating Expenses	2,294	1,175	1,911
Operating Income (Loss)	(850)	103	(430)
Gain on sale of assets, net	0	0	13
Interest expense, net	316	196	227
(Loss) Before Reorganization Items, Gains on Early Extinguishment of Debt and Provision (Benefit) for Income Taxes	(1,166)	(93)	(644)
Reorganization items	38	0	0
Gains on early extinguishment of debt	9	140	0
Income (Loss) Before Provision (Benefit) for Income Taxes	(1,195)	47	(644)
Provision (benefit) for income taxes	(376)	6	(125)
Net Income (Loss)	(819)	41	(519)
Other Comprehensive Income (Loss)
Adjustments for pension and other post-employment benefits, net of taxes	10	(16)	(22)
Comprehensive Income (Loss)	$ (809)	$ 25	$ (541)
Basic and diluted earnings (loss) per common share (in dollars per share)	$ (54.89)	$ 4.09	$ (51.75)
Basic and diluted weighted average common shares outstanding (in shares)	14.9	10.1	10.0