Condensed Consolidated Statements of Income (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
Income Statement [Abstract]
Net sales	$ 2,707	$ 2,558	$ 7,787	$ 7,518
Cost of sales	1,579	1,487	4,487	4,510
Gross margin	1,128	1,071	3,300	3,008
Marketing and administrative expenses	685	726	1,890	2,076
Research and development expenses	151	159	435	490
Operating income	292	186	975	442
Net interest expense	14	14	41	53
Other (income) expense, net	(12)	44	10	(4,286)
Income from continuing operations before income taxes	290	128	924	4,675
Income tax expense (benefit)	42	1	139	(51)
Income from continuing operations	248	127	785	4,726
Income (loss) from discontinued operations, net of tax	3	3	3	(4)
Net income	$ 251	$ 130	$ 788	$ 4,722
Income from continuing operations per common share
Basic	$ 0.46	$ 0.23	$ 1.45	$ 8.64
Diluted	0.45	0.23	1.42	8.56
Income (loss) from discontinued operations per common share
Basic		0.01		(0.01)
Diluted		0.01		(0.01)
Net income per common share
Basic	0.46	0.24	1.45	8.63
Diluted	$ 0.45	$ 0.24	$ 1.42	$ 8.55
Weighted-average number of common shares outstanding
Basic	545	544	543	547
Diluted	557	551	554	552
Cash dividends declared per common share	$ 0.160	$ 0.130	$ 0.450	$ 0.375