XML 85 R69.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Debt - Fair Value of Debt Outstanding (Details) | Dec. 31, 2017 EUR (€) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 EUR (€) | Dec. 31, 2016 USD ($) | Sep. 30, 2016 | Jun. 30, 2015 EUR (€)
--- | --- | --- | --- | --- | --- | ---
7.456% Senior Notes Due 2018 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 7.456% | 7.456% | 7.456% | 7.456% |  |
Senior unsecured notes principal amount |  | $ 500,000,000 |  |  |  |
5.95% Senior Notes Due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 5.95% | 5.95% | 5.95% | 5.95% | 5.95% |
Senior unsecured notes principal amount |  | $ 750,000,000 |  |  |  |
2.5% Senior Notes Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50%
Fair value of senior notes | € | € 690,000,000 |  | € 682,000,000 |  |  |
Senior unsecured notes principal amount | € | € 650,000,000 |  | € 650,000,000 |  |  | € 650,000,000
4.5% Senior Notes Due 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 4.50% | 4.50% | 4.50% | 4.50% | 4.50% |
Senior unsecured notes principal amount |  | $ 500,000,000 |  |  |  |
5.0% Senior Notes Due 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
Senior unsecured notes principal amount |  | $ 750,000,000 |  |  |  |
3.8% Senior Notes Due 2028 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 3.80% | 3.80% | 3.80% | 3.80% |  |
Senior unsecured notes principal amount |  | $ 1,000,000,000 |  |  |  |
Level 2 | 7.456% Senior Notes Due 2018 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 7.456% | 7.456% | 7.456% | 7.456% |  |
Fair value of senior notes |  | $ 516,000,000 |  | $ 541,000,000 |  |
Level 2 | 5.95% Senior Notes Due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 5.95% | 5.95% | 5.95% | 5.95% |  |
Fair value of senior notes |  | $ 810,000,000 |  | $ 823,000,000 |  |
Level 2 | 2.5% Senior Notes Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 2.50% | 2.50% | 2.50% | 2.50% |  |
Fair value of senior notes |  | $ 828,000,000 |  | $ 718,000,000 |  |
Senior unsecured notes principal amount | € | € 650,000,000 |  | € 650,000,000 |  |  |
Level 2 | 4.5% Senior Notes Due 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 4.50% | 4.50% | 4.50% | 4.50% |  |
Fair value of senior notes |  | $ 528,000,000 |  | $ 511,000,000 |  |
Level 2 | 5.0% Senior Notes Due 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 5.00% | 5.00% | 5.00% | 5.00% |  |
Fair value of senior notes |  | $ 807,000,000 |  | $ 782,000,000 |  |
Level 2 | 3.8% Senior Notes Due 2028 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, interest rate | 3.80% | 3.80% | 3.80% | 3.80% |  |
Fair value of senior notes |  | $ 969,000,000 |  | $ 0 |  |

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 Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
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
- 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_TwoPointFivePercentSeniorNotesDueOnTwoZeroTwoTwoMember
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_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: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |