Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating Activities
Net loss	$ (175)	$ (184)
Adjustments to reconcile net loss to net cash:
Long-lived asset impairments	1
Depreciation, depletion and amortization	85	90
Share-based compensation expense	16	17
Deferred income taxes	1	1
Noncash income tax benefit	(3)	(19)
Gain on asset dispositions	(1)	(1)
(Increase) decrease in working capital:
Receivables	(54)	(57)
Income taxes receivable	1	17
Inventories	(23)	(8)
Prepaid expenses	(6)
Payables	19	27
Accrued expenses	(13)	(15)
(Increase)/decrease in other assets	(12)	4
Increase in other liabilities	6	14
Other, net	4	(7)
Net cash used for operating activities	(154)	(121)
Investing Activities
Purchases of marketable securities	(221)	(159)
Sales and maturities of marketable securities	176	14
Capital expenditures	(25)	(11)
Loan to joint venture	(4)
Net proceeds from asset dispositions	1	3
Return of restricted cash	2
Net cash used for investing activities	(71)	(153)
Financing Activities
Repayment of debt	(3)	(3)
Repurchases of common stock to satisfy employee tax withholding obligations	(3)	(1)
Net cash used for financing activities	(6)	(4)
Effect of exchange rate changes on cash	4	(2)
Net decrease in cash and cash equivalents	(227)	(280)
Cash and cash equivalents at beginning of period	629	690
Cash and cash equivalents at end of period	402	410
Supplemental Cash Flow Disclosures:
Interest paid	97	85
Income taxes paid (refunded), net	8	(14)
Amount in accounts payable for capital expenditures	$ 2	$ 1