Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Total revenues	$ 6,423	$ 5,737	$ 18,790	$ 17,165
Operating expenses:
Cost of sales	1,561	1,036	4,562	3,103
Research and development	1,062	1,001	2,978	2,804
Selling, general and administrative	1,346	1,223	3,957	3,637
Other	1	1	162	(5)
Total operating expenses	3,970	3,261	11,659	9,539
Operating income	2,453	2,476	7,131	7,626
Interest expense, net	302	313	944	988
Interest and other income, net	55	114	69	517
Income before income taxes	2,206	2,277	6,256	7,155
Provision for income taxes	185	309	607	1,016
Net income	$ 2,021	$ 1,968	$ 5,649	$ 6,139
Earnings per share:
Basic (in usd per share)	$ 3.45	$ 3.29	$ 9.61	$ 10.08
Diluted (in usd per share)	$ 3.43	$ 3.27	$ 9.54	$ 10.01
Shares used in calculation of earnings per share:
Basic (in shares)	585	599	588	609
Diluted (in shares)	589	602	592	613
Product sales [Member]
Revenues:
Product sales	$ 6,104	$ 5,463	$ 17,906	$ 16,323
Other revenues [Member]
Revenues:
Total revenues	$ 319	$ 274	$ 884	$ 842