No definition available.

Name:	expe_DismissalBasedOnFindingNotSubjectToTax
Namespace Prefix:	expe_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	instant

Hotel Booking Practices Investigation Period

No definition available.

Name:	expe_HotelBookingPracticesInvestigationPeriod
Namespace Prefix:	expe_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Lease Expiration Year

No definition available.

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

This element represents the number of lawsuits in which the reporting entity was involved.

No definition available.

Name:	expe_LossContingencyNumberOfLawsuits
Namespace Prefix:	expe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

This element represents the number of lawsuits in which the reporting entity was involved and which are currently active.

No definition available.

Name:	expe_LossContingencyNumberOfLawsuitsCurrentlyActive
Namespace Prefix:	expe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Monies paid in advance of litigation in occupancy and other tax proceedings.

No definition available.

Name:	expe_OccupancyAndOtherTaxAssessmentPayments
Namespace Prefix:	expe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of loss contingency liability.

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

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

Name:	us-gaap_LossContingencyAccrualProvision
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of claims dismissed.

No definition available.

Name:	us-gaap_LossContingencyClaimsDismissedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Name:	us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The total number of new claims filed pertaining to a loss contingency during the period.

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Name:	dei_LegalEntityAxis=expe_TravelCompaniesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LitigationCaseAxis=expe_LitigationRelatingToOccupancyTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LitigationCaseAxis=expe_MattersRelatingToHotelBookingPracticesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementGeographicalAxis=expe_PortlandOregonAndMultnomahCountyOregonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: