Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash provided by (used for) operating activities	$ 116	$ (197)
Investing activities:
Purchases of property, plant and equipment	(60)	(46)
Proceeds from disposal of property, plant and equipment	30	0
Purchases of privately held securities	(13)	0
Purchases of notes receivable	(5)	(3)
Payments for investments and acquisitions of certain technologies	0	(2)
Cash provided by (used for) investing activities	(48)	(51)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Payment of contingent consideration	(21)	(87)
Proceeds from borrowings on credit facilities	40	0
Payments on borrowings from credit facilities	(40)	0
Cash used to net share settle employee equity awards	(57)	(61)
Proceeds from issuances of shares of common stock	27	54
Cash provided by (used for) financing activities	(51)	(94)
Effect of foreign exchange rates on cash	2	(3)
Net increase (decrease) in cash and cash equivalents	19	(345)
Cash and cash equivalents at beginning of period	319	587
Cash and cash equivalents at end of period	338	242
Supplemental Information
Stock-based compensation expense	$ 28	$ 26