REVENUE - Incentives and Loyalty Programs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ (17,090)	$ (10,958)	$ (6,796)
Incentives and Loyalty Programs | Accrued expenses and other current liabilities
Disaggregation of Revenue [Line Items]
Liabilities for incentives and loyalty programs	$ 143	$ 71
Loyalty incentive programs | OpenTable
Disaggregation of Revenue [Line Items]
Decrease in liability balance with a corresponding increase to revenue			28
Other incentive programs - additional rebates | Booking.com
Disaggregation of Revenue [Line Items]
Revenues			$ 100