Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash provided by (used for) operating activities	$ (197)	$ 198
Investing activities:
Purchases of property, plant and equipment	(46)	(59)
Purchases of privately held securities	0	(6)
Purchases of notes receivable	(3)	0
Proceeds from sales of publicly traded and privately held equity securities and collections of notes receivable	0	7
Payments for acquisitions of businesses, net of cash acquired	0	(8)
Payments for investments and acquisitions of certain technologies	(2)	(11)
Proceeds from business divestitures, net of costs	0	12
Cash used for investing activities	(51)	(65)
Financing activities:
Payment of contingent consideration	(87)	(12)
Proceeds from borrowings on credit facilities	0	285
Payments on borrowings from credit facilities	0	(285)
Payments for acquisitions of treasury stock	0	(125)
Cash used to net share settle employee equity awards	(61)	(47)
Proceeds from issuances of shares of common stock	54	24
Cash used for financing activities	(94)	(160)
Effect of foreign exchange rates on cash	(3)	1
Net increase (decrease) in cash and cash equivalents	(345)	(26)
Cash and cash equivalents at beginning of period	587	217
Cash and cash equivalents at end of period	242	191
Non-cash operating activities:
Stock-based compensation expense	26	26
Fair value of contingent consideration recorded in purchase accounting	$ 0	$ 3