Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net sales	$ 1,774	$ 1,761
Cost of products sold	537	578
Gross profit	1,237	1,183
Operating expenses:
Selling, general and administrative expenses	666	631
Research and development expenses	191	204
Royalty expense	40	41
Amortization expense	109	103
Goodwill impairment charges	0	423
Intangible asset impairment charges	55	0
Contingent consideration (benefit) expense	(22)	(23)
Restructuring charges	20	10
Litigation-related (credits) charges	(7)	130
Gain on divestiture	(12)	(6)
Operating expenses	1,040	1,513
Operating income (loss)	197	(330)
Other (expense) income:
Interest expense	(54)	(65)
Other, net	3	1
Income (loss) before income taxes	146	(394)
Income tax expense (benefit)	13	(40)
Net income (loss)	$ 133	$ (354)
Net income (loss) per common share — basic	$ 0.10	$ (0.26)
Net income (loss) per common share — assuming dilution	$ 0.10	$ (0.26)
Weighted-average shares outstanding
Basic	1,321.7	1,351.9
Assuming dilution	1,349.2	1,351.9