Financial Instruments and Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative Gain Loss On Derivative Net	$ 2,000,000		$ 2,000,000
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net income (loss)
Cash and cash equivalents	$ 1,212,000,000		$ 1,212,000,000		$ 1,064,000,000
Derivative instruments not designated as hedging instruments, description of terms			We generally use forward contracts to reduce the effects of foreign currency exchange rate fluctuations on our cash flows for the Euro versus the U.S. Dollar. For the three and six months ended June 30, 2025 and 2024, our forward contracts were not designated as hedges and generally had maturities of less than 90 days.
Foreign currency exchange contracts maturity period, maximum	90 days	90 days	90 days	90 days
Maturity of term deposits			90 days or less at the date of purchase, in each case, with
Short-term marketable securities outstanding	$ 0		$ 0		0
Long-term marketable securities outstanding	0		0		0
Earnings (losses) from equity method investment, net	(1,000,000)	$ (1,000,000)	(1,000,000)	$ (1,000,000)
Other Long-Term Assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Redeemable noncontrolling interest, settlement amount	20,000,000		$ 20,000,000
Percentage of notes receivable due in june 2028			50.00%
Percentage of notes receivable due in june 2030			50.00%
Net of accumulated allowance for credit losses, Carrying value	$ 9,000,000		$ 9,000,000		$ 9,000,000
Customer Concentration Risk | Sales | Booking
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Customer concentration risk					10.00%
Customer Concentration Risk | Sales | Expedia and Booking
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Customer concentration risk					22.00%
Chelsea Investment Holding Company PTE, Ltd
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity method investment, ownership percentage	40.00%		40.00%
Impairment loss on equity method investments	$ 0	$ 0	$ 0	$ 0
Chelsea Investment Holding Company PTE, Ltd | Non-Marketable Investments
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity method investments	27,000,000		27,000,000		$ 28,000,000
Level 3 Unobservable Inputs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Financial liabilities measured at fair value on a recurring basis	$ 0		$ 0		$ 0