Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Services	$ 5,246	$ 3,598	$ 14,164	$ 9,814
Product sales	1,302	1,067	3,601	2,999
Total revenue	6,548	4,665	17,765	12,813
Operating costs and expenses:
Cost of services	4,030	2,891	11,117	8,075
Cost of sales	1,107	894	3,127	2,542
General and administrative	79	62	214	167
Total operating costs and expenses	5,216	3,847	14,458	10,784
Operating income	1,332	818	3,307	2,029
Interest expense, net of interest income of $1, $3, $4, and $9	(62)	(76)	(194)	(228)
Other, net	(9)	(7)	(18)	(56)
Income from continuing operations before income taxes	1,261	735	3,095	1,745
Provision for income taxes	(411)	(249)	(992)	(570)
Income from continuing operations	850	486	2,103	1,175
Income (loss) from discontinued operations, net of income tax (provision) benefit of $(19), $64, $(18), and $63	(165)	59	(166)	60
Net income	685	545	1,937	1,235
Noncontrolling interest in net income of subsidiaries	(2)	(1)	(4)	(5)
Net income attributable to company	683	544	1,933	1,230
Amounts attributable to company shareholders:
Income from continuing operations	848	485	2,099	1,170
Income (loss) from discontinued operations, net	(165)	59	(166)	60
Net income attributable to company	$ 683	$ 544	$ 1,933	$ 1,230
Basic income per share attributable to company shareholders:
Income from continuing operations (in dollars per share)	$ 0.92	$ 0.53	$ 2.29	$ 1.29
Income (loss) from discontinued operations, net (in dollars per share)	$ (0.18)	$ 0.07	$ (0.18)	$ 0.07
Net income per share (in dollars per share)	$ 0.74	$ 0.60	$ 2.11	$ 1.36
Diluted income per share attributable to company shareholders:
Income from continuing operations (in dollars per share)	$ 0.92	$ 0.53	$ 2.28	$ 1.29
Income (loss) from discontinued operations, net (in dollars per share)	$ (0.18)	$ 0.07	$ (0.18)	$ 0.06
Net income per share (in dollars per share)	$ 0.74	$ 0.60	$ 2.10	$ 1.35
Cash dividends per share (in dollars per share)	$ 0.09	$ 0.09	$ 0.27	$ 0.27
Basic weighted average common shares outstanding (in shares)	920	910	917	907
Diluted weighted average common shares outstanding (in shares)	925	912	922	910