Airplane Ownership Interest

No definition available.

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- Definition

Net basis in our ownership interest in the plane recorded in long-term investments and other assets

+ References

No definition available.

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- Definition

Related Party Transaction, Proceeds From Reimbursement of Expenses Incurred

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No definition available.

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- Definition

Total cost of shares issued divided by the total number of shares issued.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- 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.

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- 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.

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No definition available.

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- Definition

Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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- Definition

Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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Related Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 31, 2018	Sep. 30, 2016	Mar. 24, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Stock issued, aggregate value	$ 31,000,000
Liberty
Related Party Transaction [Line Items]
Common stock issued from treasury stock	269,646
Treasury stock reissued, price per share	$ 113.32
Stock issued, aggregate value	$ 31,000,000
Airplane One \| Expedia, Inc
Related Party Transaction [Line Items]
Airplane ownership interest	50.00%
Airplane One \| Iac
Related Party Transaction [Line Items]
Airplane ownership interest	50.00%
Aircraft
Related Party Transaction [Line Items]
Ownership interest of airplanes	$ 33,000,000	$ 40,000,000
Airplane Two \| Expedia, Inc
Related Party Transaction [Line Items]
Airplane ownership interest	50.00%
Airplane Two \| Iac
Related Party Transaction [Line Items]
Airplane ownership interest	50.00%
Credit Facility
Related Party Transaction [Line Items]
Credit facility	$ 2,000,000,000	$ 1,500,000,000
7.456% Senior Notes Due 2018
Related Party Transaction [Line Items]
Senior notes, interest rate	7.456%	7.456%		7.456%
5.95% Senior Notes Due 2020
Related Party Transaction [Line Items]
Senior notes, interest rate	5.95%	5.95%			5.95%
2.5% Senior Notes Due 2022
Related Party Transaction [Line Items]
Senior notes, interest rate	2.50%	2.50%			2.50%		2.50%
4.5% Senior Notes Due 2024
Related Party Transaction [Line Items]
Senior notes, interest rate	4.50%	4.50%			4.50%
5.0% Senior Notes Due 2026
Related Party Transaction [Line Items]
Senior notes, interest rate	5.00%	5.00%			5.00%
Reimbursement Agreement \| Related Party
Related Party Transaction [Line Items]
Proceeds from reimbursement of expenses			$ 4,000,000
Reimbursement Agreement \| Credit Facility \| Related Party
Related Party Transaction [Line Items]
Credit facility						$ 1,500,000,000