Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income	$ 460	$ 457	$ 384
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	136	106	93
Deferred income taxes	34	6	(2)
Stock-based compensation expense	17	18	22
Impairment charge	0	0	7
Other	(5)	(1)	8
Changes in operating assets and liabilities:
Accounts receivable	(15)	(35)	1
Inventories	(44)	(63)	8
Accounts payable	10	23	8
Income taxes	(10)	5	(12)
Other, net	(16)	(21)	6
Net cash provided by operating activities	567	495	523
Cash flows from investing activities:
Capital expenditures	(114)	(104)	(99)
Purchases of short-term investments	(97)	(65)	(43)
Proceeds from sales of short-term investments	97	55	41
Acquisitions of businesses, net of cash acquired	(391)	(75)	(80)
Other, net	(6)	(2)	(1)
Net cash used in investing activities	(511)	(191)	(182)
Cash flows from financing activities:
Net issuance/repayment of short-term debt	161	81	(238)
Issuance of long term debt	0	0	298
Repayment of long term debt	0	(100)	(100)
Dividends	(97)	(86)	(78)
Share repurchases	(124)	(134)	(99)
Proceeds from exercise of stock options	41	34	45
Excess tax benefits from stock-based payments	13	5	11
Net cash used in financing activities	(6)	(200)	(161)
Effect of foreign currency exchange rate changes on cash	9	(8)	16
Net change in cash and cash equivalents	59	96	196
Cash and cash equivalents at January 1	665	569	373
Cash and cash equivalents at December 31	724	665	569
Supplemental disclosures of cash flow information:
Income taxes paid	156	162	163
Interest paid, net of capitalized interest	$ 8	$ 13	$ 11