Consolidated Statements Of Stockholders' Equity (USD $) In Millions	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings/(Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance, value at Dec. 31, 2009	$ 2	$ (870)	$ 3,733	$ (315)	$ 138	$ 2,688
Balance, shares at Dec. 31, 2009	206	(27)
Comprehensive Income
Net income				300		300
Currency translation adjustment, net of tax					1	1
Reclassification of unrealized loss on cash flow hedge, net of tax benefit					8
Unrealized gains on cash flow hedges, net of tax					2	10	[1]
Total comprehensive income						311
Exercise of stock options, value			36			36
Exercise of stock options, shares	2
Issuance of shares for RSU vesting, shares	2
Change in deferred compensation			8			8
Reversal of net deferred tax liabilities from former Parent			190			190
Repurchase of warrants, value			(75)			(75)
Repurchase of common stock, value		(191)				(191)
Repurchase of common stock, shares		(8)
Change in excess tax benefit on equity awards			11			11
Dividends				(67)		(67)
Balance, value at Sep. 30, 2010	2	(1,061)	3,903	(82)	149	2,911
Balance, shares at Sep. 30, 2010	210	(35)
Balance, value at Dec. 31, 2010	2	(1,107)	3,892	(25)	155	2,917
Balance, shares at Dec. 31, 2010	210	(37)
Comprehensive Income
Net income				361		361
Currency translation adjustment, net of tax					(25)	(25)
Unrealized gains on cash flow hedges, net of tax					3	3
Total comprehensive income						339
Exercise of stock options, shares			10			10
Issuance of shares for RSU vesting, shares	2
Change in deferred compensation			1			1
Repurchase of warrants, value			(112)			(112)
Repurchase of common stock, value		(677)				(677)
Repurchase of common stock, shares		(22)
Change in excess tax benefit on equity awards			17			17
Dividends				(76)		(76)
Balance, value at Sep. 30, 2011	$ 2	$ (1,784)	$ 3,808	$ 260	$ 133	$ 2,419
Balance, shares at Sep. 30, 2011	212	(59)

[1] Primarily represents the reclassification of an after-tax unrealized loss associated with the termination of an interest rate swap agreement in connection with the early extinguishment of the term loan facility (see Note 7—Long-Term Debt and Borrowing Arrangements).