CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Millions, except Share data, unless otherwise specified		Total	Common Stock [Member]		Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]
Balance at Dec. 31, 2012		$ 1,543	$ 1		$ 1,997	$ (424)	$ (115)	$ 84
Balance (in shares) at Dec. 31, 2012		92,984,016	93,000,000	[1]			3,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		21				21
Foreign currency translation adjustments		(20)						(20)
Stock compensation expense, net					9
Exercise of common stock options					3
Conversion of subordinated convertible debentures (in shares)	[1]		1,000,000
Conversion of subordinated convertible debentures					38
4 percent Convertible Senior Notes					2
Shares repurchased and retired					(12)
Repurchase of common stock (in shares)							0
Repurchase of common stock							(18)
Balance at Mar. 31, 2013		$ 1,566	$ 1		$ 2,037	$ (403)	$ (133)	$ 64
Balance (in shares) at Mar. 31, 2013		94,232,796	94,000,000	[1]			3,000,000

[1] An aggregate of 30 million net shares were issued during the year ended December 31, 2012. The shares were primarily issued in connection with the acquisition of RSC Holdings Inc. discussed in in note 1 to the condensed consolidated financial statements.