Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net sales	$ 2,393	$ 2,222	$ 7,262	$ 6,640
Cost of products sold	672	637	2,084	1,919
Gross profit	1,720	1,585	5,179	4,721
Operating expenses:
Selling, general and administrative expenses	870	800	2,616	2,408
Research and development expenses	289	254	825	734
Royalty expense	17	16	52	50
Amortization expense	148	139	437	424
Intangible asset impairment charges	0	3	35	3
Contingent consideration expense (benefit)	(13)	(4)	(12)	(78)
Restructuring charges (credits)	3	12	20	17
Litigation-related net charges (credits)	18	(12)	18	196
Operating expenses	1,333	1,208	3,992	3,754
Operating income (loss)	388	377	1,187	967
Other income (expense):
Interest expense	(58)	(57)	(177)	(172)
Other, net	126	(11)	116	(89)
Income (loss) before income taxes	456	309	1,126	706
Income tax expense (benefit)	24	26	(159)	(13)
Net income (loss)	$ 432	$ 283	$ 1,285	$ 719
Net income (loss) per common share — basic	$ 0.31	$ 0.21	$ 0.93	$ 0.53
Net income (loss) per common share — assuming dilution	$ 0.31	$ 0.20	$ 0.92	$ 0.52
Weighted-average shares outstanding
Basic	1,382.8	1,372.0	1,380.0	1,369.1
Assuming dilution	1,403.9	1,394.1	1,399.8	1,391.8