XML 84 R68.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Debt - Additional Information (Detail) | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2016 | Dec. 31, 2017 EUR (€) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 EUR (€) | Dec. 31, 2016 USD ($) | Jun. 30, 2015 EUR (€)
Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Accrued interest related to senior notes |  |  | $ 75,000,000 |  | $ 63,000,000 |
Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility |  |  | 1,500,000,000 |  |  |
Commitment fee on undrawn amounts |  | 0.175% |  |  |  |
Basis points added to LIBOR rate |  | 1.375% |  |  |  |
Letters of credit issued under the credit facility |  |  | 14,000,000 |  | $ 19,000,000 |
Uncommitted Credit Facility | International Subsidiary One |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility | € |  | € 50,000,000 |  |  |  |
Credit facility borrowings outstanding | € |  | € 0 |  |  |  |
4.5% Senior Notes Due 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount |  |  | $ 500,000,000 |  |  |
Senior notes, interest rate | 4.50% | 4.50% | 4.50% | 4.50% | 4.50% |
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
Senior notes issued price percentage |  | 99.444% | 99.444% |  |  |
4.5% Senior Notes Due 2024 | Upon the occurrence of certain change of control triggering events |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument redemption price percentage | 101.00% |  |  |  |  |
2.5% Senior Notes Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount | € |  | € 650,000,000 |  | € 650,000,000 |  | € 650,000,000
Senior notes, interest rate | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50%
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
Senior notes issued price percentage |  | 99.525% | 99.525% |  |  |
2.5% Senior Notes Due 2022 | Upon the occurrence of certain change of control triggering events |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument redemption price percentage | 101.00% |  |  |  |  |
7.456% Senior Notes Due 2018 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount |  |  | $ 500,000,000 |  |  |
Senior notes, interest rate |  | 7.456% | 7.456% | 7.456% | 7.456% |
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
5.95% Senior Notes Due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount |  |  | $ 750,000,000 |  |  |
Senior notes, interest rate | 5.95% | 5.95% | 5.95% | 5.95% | 5.95% |
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
Senior notes issued price percentage |  | 99.893% | 99.893% |  |  |
5.95% Senior Notes Due 2020 | Upon the occurrence of certain change of control triggering events |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument redemption price percentage | 101.00% | 101.00% |  |  |  |
5.0% Senior Notes Due 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount |  |  | $ 750,000,000 |  |  |
Senior notes, interest rate | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
Senior notes issued price percentage |  | 99.535% | 99.535% |  |  |
5.0% Senior Notes Due 2026 | Upon the occurrence of certain change of control triggering events |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument redemption price percentage | 101.00% |  |  |  |  |
3.8% Senior Notes Due 2028 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior unsecured notes principal amount |  |  | $ 1,000,000,000 |  |  |
Senior notes, interest rate |  | 3.80% | 3.80% | 3.80% | 3.80% |
Debt instrument redemption price percentage |  | 100.00% |  |  |  |
Senior notes issued price percentage |  | 99.747% | 99.747% |  |  |
3.8% Senior Notes Due 2028 | Upon the occurrence of certain change of control triggering events |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument redemption price percentage | 101.00% |  |  |  |  |

X
- Definition The senior notes were issued at a percentage of par (less than 100% of par results in a discount). + References No definition available. + Details
Name: | expe_SeniorNotesIssuedPricePercentage
Namespace Prefix: | expe_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of interest payable on debt, including, but not limited to, trade payables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_InterestPayableCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=expe_UncommittedCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=expe_ForeignSubsidiaryOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=expe_FourPointFivePercentSeniorNotesDueOnTwoZeroTwoFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=expe_TwoPointFivePercentSeniorNotesDueOnTwoZeroTwoTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=expe_FivePointZeroPercentSeniorNotesDueOnTwoZeroTwoSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=expe_ThreePointEightPercentSeniorNotesDueOnTwoZeroTwoEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |