CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (USD $) In Millions, except Share data, unless otherwise specified		Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Comprehensive (loss) Income [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Dec. 31, 2008			$ 1	$ 466	$ (512)		$ 16
Balance (in shares) at Dec. 31, 2008			60,000,000
Comprehensive (loss) income:
Net income (loss)		(62)			(62)	(62)
Other comprehensive income (loss):
Foreign currency translation adjustments						51	51
Comprehensive income (loss)						(11)
Issuance of 4 percent Convertible Senior Notes, net				33
Stock compensation expense, net				8
Exercise of common stock options (in shares)		0
Convertible note hedge transactions, net				(17)
Excess tax benefits from share-based payment arrangements, net				(2)
Other				(1)
Balance at Dec. 31, 2009			1	487	(574)		67
Balance (in shares) at Dec. 31, 2009			60,000,000
Comprehensive (loss) income:
Net income (loss)		(26)			(26)	(26)
Other comprehensive income (loss):
Foreign currency translation adjustments						20	20
Comprehensive income (loss)						(6)
Stock compensation expense, net				8
Exercise of common stock options (in shares)		196,000
Excess tax benefits from share-based payment arrangements, net				(2)
Other (in shares)			1,000,000
Other				(1)
Balance at Dec. 31, 2010		(20)	1	492	(600)		87
Balance (in shares) at Dec. 31, 2010		60,621,338	61,000,000
Comprehensive (loss) income:
Net income (loss)		101			101	101
Other comprehensive income (loss):
Foreign currency translation adjustments						(11)	(11)
Fixed price diesel swaps						(1)	(1)
Comprehensive income (loss)						89
Issuance of 4 percent Convertible Senior Notes, net	[1]			(45)
Stock compensation expense, net				12
Exercise of common stock options (in shares)		1,831,000	2,000,000
Exercise of common stock options				35
Shares repurchased and retired (in shares)
Shares repurchased and retired				(7)
Balance at Dec. 31, 2011		$ 64	$ 1	$ 487	$ (499)		$ 75
Balance (in shares) at Dec. 31, 2011		62,877,530	63,000,000

[1] Reflects a reduction due to our 4 percent Convertible Senior Notes being convertible at December 31, 2011 (an amount equal to the unamortized portion of the original issue discount was reclassified out of stockholders’ equity (deficit) and is reflected as “temporary equity” in our consolidated balance sheet as of December 31, 2011), and a reduction reflecting the excess of the cash transferred upon conversion of a portion of the 4 percent Convertible Senior Notes during the year ended December 31, 2011 over the principal amount of the converted notes, net of cash received from the option counterparties to our convertible note hedges upon the conversion. See note 12 to our consolidated financial statements for additional detail.