CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) (USD $) In Millions, except Share data, unless otherwise specified		Total	Common Stock		Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income
Balance at Dec. 31, 2012		$ 1,543	$ 1		$ 1,997	$ (424)	$ (115)	$ 84
Balance (in shares) at Dec. 31, 2012		92,984,016	92,984,016	[1]			2,907,793
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		247				247
Foreign currency translation adjustments		(31)						(31)
Stock compensation expense, net					34
Exercise of common stock options (in shares)	[1]		1,000,000
Exercise of common stock options					5
Conversion of subordinated convertible debentures (in shares)	[1]		1,000,000
Conversion of subordinated convertible debentures					40
4 percent Convertible Senior Notes					(32)
Shares repurchased and retired					(14)
Repurchase of common stock (in shares)			2,000,000	[1]			2,000,000
Repurchase of common stock							(85)
Balance at Sep. 30, 2013		$ 1,707	$ 1		$ 2,030	$ (177)	$ (200)	$ 53
Balance (in shares) at Sep. 30, 2013		93,231,395	93,231,395	[1]			4,551,666

[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 note 1 to the condensed consolidated financial statements.