Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Sales	$ 697	$ 701	$ 1,373	$ 1,390
Cost of products and services sold	341	343	659	681
Gross profit	356	358	714	709
Selling, general and administrative expenses	164	157	327	317
Research and development expenses	19	16	36	32
Other charges	4	1	7	2
Operating income	169	184	344	358
Interest, net	1	0	1	1
Income before income taxes	168	184	343	357
Provision for income taxes	48	51	97	98
Net income	$ 120	$ 133	$ 246	$ 259
Net income per share - Basic (in dollars per share)	$ 1.00	$ 1.12	$ 2.05	$ 2.18
Net income per share - Diluted (in dollars per share)	$ 0.98	$ 1.11	$ 2.02	$ 2.16
Weighted average number of shares outstanding - Basic (in shares)	120	119	120	119
Weighted average number of shares outstanding - Diluted (in shares)	122	120	122	120
Dividends per share (in dollars per share)	$ 0.23	$ 0.23	$ 0.46	$ 0.46