Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net sales	$ 2,222	$ 2,105	$ 6,640	$ 6,195
Cost of products sold	637	594	1,919	1,805
Gross profit	1,585	1,511	4,721	4,390
Operating expenses:
Selling, general and administrative expenses	800	772	2,408	2,268
Research and development expenses	254	232	734	664
Royalty expense	16	20	50	59
Amortization expense	139	136	424	408
Intangible asset impairment charges	3	7	3	7
Restructuring charges (credits)	12	5	17	22
Contingent consideration expense (benefit)	(4)	(13)	(78)	23
Litigation-related charges (credits)	(12)	4	196	632
Operating expenses	1,208	1,163	3,754	4,083
Operating income (loss)	377	348	967	307
Other income (expense):
Interest expense	(57)	(58)	(172)	(175)
Other, net	(11)	(33)	(89)	(44)
Income (loss) before income taxes	309	257	706	88
Income tax expense (benefit)	26	29	(13)	(135)
Net income (loss)	$ 283	$ 228	$ 719	$ 223
Net income (loss) per common share — basic	$ 0.21	$ 0.17	$ 0.53	$ 0.16
Net income (loss) per common share — assuming dilution	$ 0.20	$ 0.17	$ 0.52	$ 0.16
Weighted-average shares outstanding
Basic	1,372.0	1,360.6	1,369.1	1,356.1
Assuming dilution	1,394.1	1,379.7	1,391.8	1,374.9