Fair Value Measurements - Additional Information (Detail) $ in Millions		3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Mar. 02, 2022 EUR (€) instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gains (losses) from foreign currency forward contracts		$ 20	$ (34)
Gain (loss) on minority equity investments, net		1	21
Carrying value of cost method investments	$ 330	330		$ 330
Cumulative unrealized upward adjustments	2	2
Cumulative unrealized downward adjustments	$ 105	105
Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment losses related to a minority investment		$ 0	0
Global Business Travel Group
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity interest maintained		16.00%
Exchange ratio	1
Despegar.com
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on minority equity investments, net		$ 10	23
Global Business Travel Group | Equity investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on minority equity investments, net		(9)	(2)
Foreign currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives	$ 4,700	4,700
Foreign currency forward contracts	23	23		15
Gross forward asset	38	38		29
Cross-currency interest rate swaps | Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives | €					€ 300,000,000
Fixed-to fixed cross currency interest rate swaps entered into | instrument					2
Fair value of derivative, asset	$ 16	16		$ 21
Gain on derivative recognized in interest expense		$ 1	$ 0