CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) Share data in Millions, except Per Share data, unless otherwise specified	0 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	0 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended
	Jul. 10, 2013	Sep. 30, 2013	Sep. 30, 2013 Successor [Member]	Sep. 30, 2013 Successor [Member]	Jul. 10, 2013 Predecessor [Member]	Sep. 30, 2012 Predecessor [Member]	Jul. 10, 2013 Predecessor [Member]	Sep. 30, 2012 Predecessor [Member]
Net operating revenues			$ 7,749,000,000	$ 7,749,000,000	$ 932,000,000	$ 8,763,000,000	$ 18,602,000,000	$ 26,340,000,000
Net operating expenses
Cost of services and products (exclusive of depreciation and amortization included below)			4,342,000,000	4,342,000,000	567,000,000	5,093,000,000	10,545,000,000	15,189,000,000
Selling, general and administrative			2,259,000,000	2,295,000,000	289,000,000	2,391,000,000	5,067,000,000	7,208,000,000
Severance, exit costs and asset impairments			103,000,000	103,000,000	(5,000,000)	22,000,000	652,000,000	290,000,000
Depreciation			942,000,000	942,000,000	113,000,000	1,411,000,000	3,098,000,000	4,820,000,000
Amortization			461,000,000	461,000,000	8,000,000	77,000,000	147,000,000	230,000,000
Other, net			0	0	0	0	(22,000,000)	(282,000,000)
Total costs and expenses			8,107,000,000	8,143,000,000	972,000,000	8,994,000,000	19,487,000,000	27,455,000,000
Operating loss			(358,000,000)	(394,000,000)	(40,000,000)	(231,000,000)	(885,000,000)	(1,115,000,000)
Other (expense) income
Interest Expense			(416,000,000)	(416,000,000)	(275,000,000)	(377,000,000)	(1,135,000,000)	(996,000,000)
Income (Loss) from Equity Method Investments			0	0	(23,000,000)	(208,000,000)	(482,000,000)	(927,000,000)
Equity in losses of unconsolidated investments, net				0			(482,000,000)	(927,000,000)
Gain on previously-held equity interests			0	0	2,926,000,000	0	2,926,000,000	0
Other income, net			165,000,000	18,000,000	2,000,000	96,000,000	19,000,000	144,000,000
Nonoperating Income (Expense)			(251,000,000)	(398,000,000)	2,630,000,000	(489,000,000)	1,328,000,000	(1,779,000,000)
Loss (income) before income taxes			(609,000,000)	(792,000,000)	2,590,000,000	(720,000,000)	443,000,000	(2,894,000,000)
Income tax expense			(90,000,000)	(30,000,000)	(1,508,000,000)	(47,000,000)	(1,601,000,000)	(110,000,000)
Net (loss) income			(699,000,000)	(822,000,000)	1,082,000,000	(767,000,000)	(1,158,000,000)	(3,004,000,000)
Basic net (loss) income per common share			$ (0.18)	$ (0.25)	$ 0	$ (0.26)	$ (0.38)	$ (1.00)
Diluted net (loss) income per common share	$ 0	$ 0	$ 0			$ 0	$ 0	$ 0
Weighted Average Number of Shares Outstanding, Basic			3,802	3,318	3,086	3,003	3,027	3,001
Weighted Average Number of Shares Outstanding, Diluted	3,640	3,318	3,802			3,003	3,027	3,001
Other comprehensive (loss) income, net of tax:
Net unrealized holding gains (losses) on securities and other			4,000,000	4,000,000	(47,000,000)	1,000,000	(12,000,000)	(5,000,000)
Net unrecognized net periodic pension and other postretirement benefits			0	0	5,000,000	14,000,000	35,000,000	31,000,000
Other comprehensive income (loss)			4,000,000	4,000,000	(42,000,000)	15,000,000	23,000,000	26,000,000
Comprehensive (loss) income			$ (695,000,000)	$ (818,000,000)	$ 1,040,000,000	$ (752,000,000)	$ (1,135,000,000)	$ (2,978,000,000)