Debt Instrument Maturity Year

No definition available.

Name:	expe_DebtInstrumentMaturityYear
Namespace Prefix:	expe_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum amount of reimbursement obligations by the related party.

+ References

No definition available.

+ Details

Name:	expe_MaximumRelatedPartyReimbursementAmount
Namespace Prefix:	expe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of board members to be elected by separate class vote.

+ References

No definition available.

+ Details

Name:	expe_PercentageOfBoardMembersToBeElectedBySeparateClassVote
Namespace Prefix:	expe_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=expe_ReimbursementAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=expe_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=expe_SevenPointFourFiveSixPercentSeniorNotesDueOnTwoZeroOneEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=expe_FivePointNineFivePercentSeniorNotesDueOnTwoZeroTwoZeroMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions - Additional Information (Detail) - USD ($)		6 Months Ended
	Mar. 24, 2016	Jun. 30, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Percentage of board members to be elected by separate class votes		25.00%
Credit Facility
Related Party Transaction [Line Items]
Unsecured revolving credit facility		$ 1,500,000,000	$ 1,000,000,000
Reimbursement Agreement \| Liberty Interactive and Liberty Expedia Holdings
Related Party Transaction [Line Items]
Reimbursement obligations	$ 45,000,000
Reimbursement Agreement \| Liberty Interactive and Liberty Expedia Holdings \| 7.456% Senior Notes Due 2018
Related Party Transaction [Line Items]
Senior notes, maturity year	2018
Reimbursement Agreement \| Liberty Interactive and Liberty Expedia Holdings \| 5.95% Senior Notes Due 2020
Related Party Transaction [Line Items]
Senior notes, maturity year	2020
Reimbursement Agreement \| Liberty Interactive and Liberty Expedia Holdings \| Credit Facility
Related Party Transaction [Line Items]
Unsecured revolving credit facility	$ 1,500,000,000