Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Product sales	$ 5,574	$ 5,474	$ 10,773	$ 10,713
Other revenues	236	214	501	502
Total revenues	5,810	5,688	11,274	11,215
Operating expenses:
Cost of sales	1,024	1,050	2,020	2,068
Research and development	873	900	1,642	1,772
Selling, general and administrative	1,209	1,292	2,273	2,495
Other	6	66	50	98
Total operating expenses	3,112	3,308	5,985	6,433
Operating income	2,698	2,380	5,289	4,782
Interest expense, net	321	313	647	607
Interest and other income, net	165	137	360	287
Income before income taxes	2,542	2,204	5,002	4,462
Provision for income taxes	391	334	780	692
Net income	$ 2,151	$ 1,870	$ 4,222	$ 3,770
Earnings per share:
Basic (in usd per share)	$ 2.93	$ 2.49	$ 5.74	$ 5.01
Diluted (in usd per share)	$ 2.91	$ 2.47	$ 5.71	$ 4.97
Shares used in calculation of earnings per share:
Basic (in shares)	734	751	736	753
Diluted (in shares)	738	756	740	759
Dividends paid per share (in usd per share)	$ 1.15	$ 1	$ 2.3	$ 2