ACQUISITION (Details) (KAYAK [Member], USD $)	Nov. 08, 2012
KAYAK [Member]
Business Acquisition [Line Items]
Pending Business Acquisition, Estimated Cost of Acquired Entity, Purchase Price	$ 1,800,000,000
Pending Business Acquisition Estimated Cost Of Acquisition Purchase Price Net Of Cash Acquired	1,650,000,000
Pending Business Acquisition Estimated Cost Of Acquired Entity, Purchase Price Per Share	$ 40.00
Pending Business Acquisition, Estimated Cost of Acquired Entity, Cash Paid	500,000,000
Pending Business Acquisition Cost Of Acquired Entity Estimated Fair Value Of Equity Securities	$ 1,300,000,000