CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net operating revenues	$ 8,793	$ 8,734
Net operating expenses
Cost of services and products (exclusive of depreciation and amortization included below)	4,933	5,085
Selling, general and administrative	2,336	2,436
Severance, exit costs and asset impairments	25	84
Depreciation, Depletion and Amortization	1,492	1,666
Other, net	(22)	(282)
Total costs and expenses	8,764	8,989
Operating income (loss)	29	(255)
Other expense
Interest Expense	(432)	(298)
Equity in losses of unconsolidated investments and other, net	(202)	(273)
Nonoperating Income (Expense)	(634)	(571)
Loss before income taxes	(605)	(826)
Income tax expense	(38)	(37)
Net loss	(643)	(863)
Basic and diluted loss per common share	$ (0.21)	$ (0.29)
Basic and diluted weighted average common shares outstanding	3,013	2,999
Other comprehensive income, net of tax:
Net unrealized holding gains (losses) on securities and other	(1)	7
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Costs Arising During Period, Net of Tax	15	10
Other comprehensive income	14	17
Comprehensive loss	$ (629)	$ (846)