Acquisition of land use rights

No definition available.

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- Definition

Represents the tax assessment issued by the tax authority including interest and penalties.

+ References

No definition available.

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- Definition

Other Increases/(Decreases) in Amounts Owed for Contractual Obligations

+ References

No definition available.

+ Details

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- Definition

Payment Of Contractual Obligation

+ References

No definition available.

+ Details

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- Definition

Payment required to appeal a litigation matter

+ References

No definition available.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

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- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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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.

+ References

No definition available.

+ Details

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

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- Definition

The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 05
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=99385795&loc=d3e12631-108344

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COMMITMENTS AND CONTINGENCIES (Details) ₺ in Millions, € in Millions, £ in Millions, $ in Millions	1 Months Ended							3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)	Jan. 31, 2019 EUR (€)	Jan. 31, 2019 USD ($)	Sep. 30, 2016 EUR (€)	Sep. 30, 2016 USD ($)	Dec. 31, 2015 EUR (€)	Jun. 30, 2020 EUR (€)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 EUR (€)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 TRY (₺)	Dec. 31, 2018 EUR (€) ft²	Dec. 31, 2018 USD ($) ft²	Jun. 30, 2020 USD ($)	Jun. 30, 2020 GBP (£)
Booking.com \| Headquarters
Commitments and Contingencies
Acquisition of land use rights					€ 43	$ 48
Contractual obligation								€ 84		€ 84						$ 94
Payment Of Contractual Obligation										178	$ 204
Other Increases/(Decreases) in Amounts Owed for Contractual Obligations								9	$ 10
Booking.com \| Headquarters \| Ground Lease
Commitments and Contingencies
Contractual obligation								€ 71		€ 71						80
French Tax Audit
Commitments and Contingencies
Assessed taxes including interest and penalties	€ 70	$ 79					€ 356
Payment required to appeal a litigation matter			€ 356	$ 403
Assessment, transfer taxes [Member]
Commitments and Contingencies
Assessed taxes including interest and penalties	39	44
Taxes Owed For Prior Periods
Commitments and Contingencies
Loss contingency accrual		67										$ 67				75
Estimated reasonably possible loss in excess of amount accrued																25
Italian Tax Audit
Commitments and Contingencies
Assessed taxes including interest and penalties	58	65												€ 48	$ 53
Payment required to appeal a litigation matter	€ 10	$ 11
Turkish Tax Audit
Commitments and Contingencies
Assessed taxes including interest and penalties												$ 79	₺ 544
Pension-related litigation [Member]
Commitments and Contingencies
Estimated reasonably possible loss in excess of amount accrued																$ 245
Manchester, England \| Rentalcars.com \| Headquarters
Commitments and Contingencies
Area of real estate property \| ft²														222,000	222,000
Lease term of operating leases which have not commenced at period end								13 years		13 years						13 years	13 years
Manchester, England \| Rentalcars.com \| Headquarters \| Operating Lease Obligations
Commitments and Contingencies
Contractual obligation																$ 80	£ 65