Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash provided by operating activities	$ 163	$ 212
Investing activities:
Purchases of property, plant and equipment	(53)	(66)
Proceeds from sale of property, plant and equipment	53
Purchases of privately held securities	(4)
Payments for investments in companies and acquisitions of certain technologies	(7)	0
Cash used for investing activities	(11)	(66)
Financing activities:
Proceeds from borrowings on credit facilities	240	120
Payment of contingent consideration	0	(3)
Payments on borrowings from credit facilities	(240)	(120)
Payments for acquisitions of treasury stock	(100)	(138)
Proceeds from issuances of shares of common stock	10	9
Cash used for financing activities	(90)	(132)
Effect of foreign exchange rates on cash	(1)	3
Net increase in cash and cash equivalents	61	17
Cash and cash equivalents at beginning of period	207	267
Cash and cash equivalents at end of period	268	284
Non-cash operating activities:
Stock-based compensation expense	$ 24	$ 27