CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net operating revenues	$ 8,734	$ 8,313
Net operating expenses
Cost of services and products (exclusive of depreciation and amortization included below)	5,085	4,396
Selling, general and administrative	2,436	2,403
Asset impairments	84	0
Depreciation	1,590	1,122
Amortization	76	133
Other, net	(282)	0
Total costs and expenses	8,989	8,054
Operating income (loss)	(255)	259
Other expense
Interest Expense	(298)	(249)
Equity in losses of unconsolidated investments and other, net	(273)	(412)
Nonoperating Income (Expense)	(571)	(661)
Loss before income taxes	(826)	(402)
Income tax expense	(37)	(37)
Net loss	(863)	(439)
Basic and diluted loss per common share	$ (0.29)	$ (0.15)
Basic and diluted weighted average common shares outstanding	2,999	2,992
Other comprehensive income, net of tax:
Net unrealized holding gains on securities	7	11
Net unrecognized net periodic pension and other postretirement benefits	10	10
Other comprehensive income	17	21
Comprehensive loss	$ (846)	$ (418)