Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 122	$ 117
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	35	32
Deferred income taxes	6	20
Stock-based compensation expense	8	6
Other	(2)	(3)
Changes in operating assets and liabilities:
Accounts receivable	(51)	(46)
Inventories	4	(16)
Accounts payable	(4)	6
Income taxes	21	13
Other, net	15	15
Net cash provided by operating activities	154	144
Cash flows from investing activities:
Capital expenditures	(25)	(32)
Purchases of short-term investments	(51)	(16)
Proceeds from sales of short-term investments	20	21
Acquisitions of businesses, net of cash acquired	0	(389)
Other, net	(3)	(3)
Net cash used in investing activities	(59)	(419)
Cash flows from financing activities:
Net issuance/(repayment) of short-term debt	(294)	193
Dividends	(26)	(24)
Share repurchases	(27)	(25)
Proceeds from exercise of stock options	10	14
Excess tax benefits from stock-based payments	3	7
Net cash provided by/(used in) financing activities	(334)	165
Effect of foreign currency exchange rate changes on cash	(14)	3
Net change in cash and cash equivalents	(253)	(107)
Cash and cash equivalents at January 1	724	665
Cash and cash equivalents at March 31	471	558
Supplemental disclosures of cash flow information:
Income taxes paid	12	11
Interest paid, net of capitalized interest	$ 0	$ 0