Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash provided by (used for) operating activities	$ 212	$ (97)
Investing activities:
Purchases of property, plant and equipment, net of proceeds	(66)	(69)
Payments for acquisitions of businesses, net of cash acquired		(370)
Payments relating to prior-period acquisitions	(3)
Payments for investments in companies and acquisitions of certain technologies		(9)
Proceeds from business divestitures, net of costs		1,416
Cash (used for) provided by investing activities	(69)	968
Financing activities:
Payments on long-term borrowings		(500)
Proceeds from borrowings on credit facilities	120	250
Payments on borrowings from credit facilities	(120)	(250)
Payments for acquisitions of treasury stock	(138)
Proceeds from issuances of shares of common stock	9	9
Cash used for financing activities	(129)	(491)
Effect of foreign exchange rates on cash	3	2
Net increase in cash and cash equivalents	17	382
Cash and cash equivalents at beginning of period	267	213
Cash and cash equivalents at end of period	284	595
Non-cash operating activities:
Stock-based compensation expense	$ 27	$ 32