Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Operating Revenue	$ 345	$ 335	$ 633	$ 679
Operating Expenses
Selling	95	71	160	145
Cost of service (exclusive of depreciation and amortization)	124	93	208	183
General and administrative	69	32	100	63
Depreciation and amortization	193	105	282	209
Total Operating Expenses	481	301	750	600
Operating Income (Loss)	(136)	34	(117)	79
Interest expense, net	79	48	122	105
Income (Loss) Before Reorganization Items, Gains on Early Extinguishment of Debt and Provision (Benefit) for Income Taxes	(215)	(14)	(239)	(26)
Reorganization items	1	0	37	0
Gains on early extinguishment of debt		71	0	140
Income (Loss) Before Provision (Benefit) for Income Taxes	(216)	57	(276)	114
Provision (benefit) for income taxes	(148)	4	(149)	3
Net Income (Loss)	(68)	53	(127)	111
Other Comprehensive Income (Loss)
Adjustments for pension and other post-employment benefits, net of taxes	(7)	0	(6)	0
Comprehensive Income (Loss)	$ (75)	$ 53	$ (133)	$ 111
Basic and diluted earnings (loss) per common share (in dollars per share)	$ (4.56)	$ 5.23	$ (10.08)	$ 10.96
Basic and diluted weighted average common shares outstanding (in shares)	14.7	10.1	12.5	10.1