Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Product sales	$ 18,192	$ 16,639	$ 15,295
Other revenues	484	626	287
Total revenues	18,676	17,265	15,582
Operating expenses:
Cost of sales	3,346	3,199	2,708
Research and development	4,083	3,380	3,167
Selling, general and administrative	5,184	4,814	4,499
Other	196	295	896
Total operating expenses	12,809	11,688	11,270
Operating income	5,867	5,577	4,312
Interest expense, net	1,022	1,053	610
Interest and other income, net	420	485	448
Income before income taxes	5,265	5,009	4,150
Provision for income taxes	184	664	467
Net income	$ 5,081	$ 4,345	$ 3,683
Earnings per share:
Basic (in usd per share)	$ 6.75	$ 5.61	$ 4.07
Diluted (in usd per share)	$ 6.64	$ 5.52	$ 4.04
Shares used in the calculation of earnings per share:
Basic (in shares)	753	775	905
Diluted (in shares)	765	787	912