Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2014 Country	Mar. 31, 2013	Dec. 31, 2013
Basis Of Presentation [Line Items]
Number of countries in which company operates	170
Global travel and tourism industry	$ 7,000,000,000,000
Net revenue	572,000,000	548,000,000	2,080,000,000
Orbitz Worldwide [Member]
Basis Of Presentation [Line Items]
Net revenue	$ 210,000,000	$ 203,000,000
Equity investments	44.00%

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Global travel and tourism industry.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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