v2.4.0.6

Stock-Based Awards And Other Equity Instruments (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended
	Feb. 10, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for new stock-based awards, shares		19,000,000
Expected dividend yield		1.38%	1.25%
Total stock-based compensation		$ 63,847,000	$ 52,507,000	$ 55,756,000
Stock-based compensation tax benefit		12,000,000	15,000,000	18,000,000
Cash received from stock-based award exercises		34,000,000	51,000,000
Income tax benefit associated with stock-based awards		21,000,000	23,000,000
Reduction of goodwill related to stock options exercised		1,000,000	1,000,000	1,000,000
Unrecognized stock-based compensation expense related to unvested stock-based awards		79,000,000
Unvested stock-based awards, which is expected to be recognized in expense weighted-average period (in years)		2.37
Vested stock warrants, shares		8,000,000
Stock warrants expiration date		May 01, 2012
Weighted average exercise price of stock warrant		$ 24.07
One-time expense		11,000,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit vested years		five
Total fair value of shares vested and released, value		37,000,000	43,000,000	27,000,000
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based restricted stock units outstanding		400,000
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price, as of year end		29.02
Total intrinsic value of stock options exercised, value		$ 30,000,000	$ 41,000,000	$ 6,000,000
Expected dividend yield	0.00%

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Current Income Tax Benefit Associated With Stock Based Awards.

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One-time expense due to the modification of stockbased compensation at the date of the TripAdvisor spin-off.

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Stock Price As Of Year End.

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Exercise price of the warrants.

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Aggregate amount of each class of warrants or rights outstanding.

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Other increases or decreases during the reporting period in the carrying value of goodwill that are not separately disclosed.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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