Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash provided by operating activities	$ 891	$ 659
Investing activities:
Purchases of property, plant and equipment, net of proceeds	(164)	(221)
Proceeds from sales of equity securities and collections of notes receivable		2
Payments for acquisitions of businesses, net of cash acquired	(134)	(370)
Payments for investments in companies and acquisitions of certain technologies	(18)	(10)
Proceeds from business divestitures, net of costs	10	1,426
Cash (used for) provided by investing activities	(306)	827
Financing activities:
Payments on long-term borrowings	(9)	(1,250)
Proceeds from borrowings on credit facilities, net of debt issuance costs	251	425
Payment of contingent consideration	(4)
Payments on borrowings from credit facilities	(260)	(425)
Payments for acquisitions of treasury stock	(500)	(192)
Proceeds from issuances of shares of common stock	20	22
Cash used for financing activities	(502)	(1,420)
Effect of foreign exchange rates on cash	2	(3)
Net increase (decrease) in cash and cash equivalents	85	63
Cash and cash equivalents at beginning of period	267	213
Cash and cash equivalents at end of period	352	276
Non-cash operating activities:
Stock-based compensation expense	$ 85	$ 96