Condensed Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Product sales	$ 4,201	$ 3,877	$ 12,302	$ 11,388
Other revenues	118	67	542	221
Total revenues	4,319	3,944	12,844	11,609
Operating expenses:
Cost of sales (excludes amortization of certain acquired intangible assets presented separately)	705	605	2,066	1,771
Research and development	880	761	2,442	2,316
Selling, general and administrative	1,127	1,125	3,431	3,278
Amortization of certain acquired intangible assets	74	74	221	221
Other	110	854	195	873
Total operating expenses	2,896	3,419	8,355	8,459
Operating income	1,423	525	4,489	3,150
Interest expense, net	271	158	762	415
Interest and other income, net	111	87	359	364
Income before income taxes	1,263	454	4,086	3,099
Provision for income taxes	156	0	529	350
Net income	$ 1,107	$ 454	$ 3,557	$ 2,749
Earnings per share:
Basic	$ 1.44	$ 0.50	$ 4.57	$ 2.98
Diluted	$ 1.41	$ 0.50	$ 4.51	$ 2.96
Shares used in calculation of earnings per share:
Basic	771	907	779	922
Diluted	783	914	789	930
Dividends paid per share	$ 0.36000000	$ 0.28000000	$ 1.08000000	$ 0.28000000