ACQUISITIONS (Details) - USD ($)					3 Months Ended	12 Months Ended
		Jul. 24, 2014	May. 21, 2013	May. 21, 2013	Jun. 30, 2014	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013	Sep. 30, 2015
Business Acquisition [Line Items]
Long-term Debt						$ 6,158,443,000	$ 3,823,870,000
Acquisition related costs							6,900,000
Goodwill						3,375,000,000	3,326,474,000		$ 1,767,912,000
Stock issuance costs paid						0	0		1,191,000
Cash paid to settle contingent consideration						18,400,000
Cash paid to settle contingent consideration, financing activities						10,700,000
Cash paid to settle contingent consideration, operating activities						7,700,000
OpenTable
Business Acquisition [Line Items]
Purchase price, total consideration		$ 2,500,000,000					2,529,000,000
Purchase price net of cash acquired		$ 2,400,000,000
Business Acquisition, Share Price		$ 103.00
Acquisition date fair value of assumed equity awards		$ 95,000,000
Cash Acquired from Acquisition							$ 126,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							18 years 10 months
Current assets	[1]						$ 203,000,000
Identifiable intangible assets	[2]						1,435,000,000
Deferred Tax Liabilities, Intangible Assets							543,000,000
Goodwill							1,500,000,000	[3]		$ 1,500,000,000
Other long-term assets							38,000,000
Total liabilities	[4]						(647,000,000)
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired					$ 98,000,000	75,000,000
Business Combination, Contingent Consideration, Liability						9,000,000	10,700,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low						0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						90,000,000
KAYAK
Business Acquisition [Line Items]
Purchase price, total consideration			$ 2,100,000,000	$ 2,100,000,000
Purchase price net of cash acquired			1,900,000,000	$ 1,900,000,000
Acquisition date fair value of assumed equity awards			$ 57,400,000
Acquisition related costs									8,500,000
Business Acquisition, Percentage of Voting Interests Acquired			100.00%	100.00%
Payments to Acquire Businesses, Gross				$ 500,000,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 1,600,000,000
Stock issuance costs paid									$ 1,200,000
Trade names | OpenTable
Business Acquisition [Line Items]
Identifiable intangible assets							$ 1,100,000,000
Amortization Period							20 years
Customer Relationships | OpenTable
Business Acquisition [Line Items]
Identifiable intangible assets							$ 290,000,000
Amortization Period							15 years
Technology-Based Intangible Assets | OpenTable
Business Acquisition [Line Items]
Identifiable intangible assets							$ 15,000,000
Amortization Period							5 years
Revolving Credit Facility
Business Acquisition [Line Items]
Long-term Debt						$ 0	$ 0
Revolving Credit Facility | OpenTable
Business Acquisition [Line Items]
Long-term Debt		$ 995,000,000

[1] ncludes cash acquired of $126 million.

[2] Acquired definite-lived intangibles, with a weighted-average life of 18.8 years, consisted of trade names of $1.1 billion with an estimated useful life of 20 years, supply and distribution agreements of $290 million with an estimated useful life of 15 years, and technology of $15 million with estimated useful life of 5 years.

[3] Goodwill is not tax deductible.

[4] Includes deferred tax liabilities of $543 million.