Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net sales	$ 1,964	$ 1,768
Cost of products sold	573	520
Gross profit	1,391	1,248
Operating expenses:
Selling, general and administrative expenses	716	668
Research and development expenses	210	192
Royalty expense	19	17
Amortization expense	136	113
Contingent consideration expense (benefit)	4	27
Restructuring charges	3	6
Litigation-related charges (credits)	10	193
Pension termination charges	0	8
Operating expenses	1,098	1,224
Operating income (loss)	293	24
Other income (expense):
Interest expense	(59)	(60)
Other, net	(6)	(15)
Income (loss) before income taxes	228	(51)
Income tax expense (benefit)	26	(50)
Net income (loss)	$ 202	$ (1)
Net income (loss) per common share — basic	$ (0.15)	$ (0.00)
Net income (loss) per common share — assuming dilution	$ (0.15)	$ (0.00)
Weighted-average shares outstanding
Basic	1,350.4	1,333.7
Assuming dilution	1,369.9	1,333.7