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Significant Accounting Policies - Additional Information (Details) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 EUR (€) | Mar. 31, 2022 EUR (€) | Mar. 02, 2022 EUR (€) instrument
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Prepaid merchant bookings | $ 319 | $ 365 |  |  |  |
Deferred merchant bookings | 8,517 | 7,723 |  |  |  |
Deferred revenue | 164 | 164 |  |  |  |
Advertising expense | $ 4,000 | 3,800 | $ 3,900 |  |  |
RSUs |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Vesting period | 4 years |  |  |  |  |
2.5% (€650 million) Senior Notes Due 2022 | Senior notes |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Debt instrument, redeemed amount | € |  |  |  | € 650,000,000 | € 650,000,000 |
Debt, interest rate |  |  |  | 2.50% | 2.50% |
2.5% (€650 million) Senior Notes Due 2022 | Senior notes |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Debt, interest rate |  |  |  |  | 2.50% |
Cross-currency interest rate swaps | Designated as Hedging Instrument |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Fixed-to fixed cross currency interest rate swaps entered into | instrument |  |  |  |  |  | 2
Notional amount of derivatives | € |  |  |  |  |  | € 300,000,000
Derivative, fixed interest rate (in percent) |  |  |  |  | 5.00% |
Derivative, average fixed interest rate (in percent) |  |  |  |  | 3.38% |
Land Improvements |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 15 years |  |  |  |  |
Buildings |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 40 years |  |  |  |  |
Minimum |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Definite lived intangible assets, estimated useful life | 1 year |  |  |  |  |
Minimum | Performance stock units ("PSUs") |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Vesting period | 2 years |  |  |  |  |
Minimum | Computer Equipment |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 3 years |  |  |  |  |
Minimum | Capitalized Software Development |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 3 years |  |  |  |  |
Minimum | Furniture and Other Equipment |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 3 years |  |  |  |  |
Maximum |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Definite lived intangible assets, estimated useful life | 10 years |  |  |  |  |
Maximum | Performance stock units ("PSUs") |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Vesting period | 3 years |  |  |  |  |
Maximum | Computer Equipment |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 5 years |  |  |  |  |
Maximum | Capitalized Software Development |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 5 years |  |  |  |  |
Maximum | Furniture and Other Equipment |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Property and equipment, estimated useful lives | 5 years |  |  |  |  |
Deferred Merchant Bookings |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Deferred merchant bookings | $ 7,600 | 6,900 |  |  |  |
Deferred merchant bookings recognized during period | 5,800 |  |  |  |  |
Revenue recognized during period | 917 |  |  |  |  |
Deferred Loyalty Rewards |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Deferred merchant bookings | $ 937 | 871 |  |  |  |
Deferred Loyalty Rewards | Minimum |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Customer loyalty program, period of recognition | 1 year |  |  |  |  |
Deferred Loyalty Rewards | Maximum |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Customer loyalty program, period of recognition | 2 years |  |  |  |  |
Deferred Revenue |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Revenue recognized during period | $ 131 |  |  |  |  |
Deferred revenue | $ 164 | $ 164 |  |  |  |

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