Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net sales	$ 681	$ 664	$ 1,356	$ 1,329
Cost of Goods and Services Sold	340	324	671	634
Gross profit	341	340	685	695
Selling, general and administrative expenses	147	151	308	311
Research and development expenses	16	18	33	36
OtherCharges	12	4	12	9
Operating income	166	167	332	339
Interest, net	1	1	2	2
Income before income taxes	165	166	330	337
Provision for income taxes	46	51	89	105
Net income	$ 119	$ 115	$ 241	$ 232
Net income per share - Basic	$ 0.99	$ 0.95	$ 2.01	$ 1.92
Net income per share - Diluted	$ 0.98	$ 0.94	$ 1.99	$ 1.90
Weighted average number of shares outstanding - Basic	120	121	120	121
Weighted average number of shares outstanding - Diluted	121	122	121	122
Dividends per share	$ 0.21	$ 0.20	$ 0.43	$ 0.40