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REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 3,778	$ 2,695
Online accommodation reservation services | Revenue Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	88.00%	86.00%
Other sources of online travel reservation services and advertising and other revenues | Revenue Benchmark | Product Concentration Risk | Maximum
Disaggregation of Revenue [Line Items]
Concentration risk percentage	10.00%	10.00%
United States
Disaggregation of Revenue [Line Items]
Revenues	$ 523	$ 475
The Netherlands
Disaggregation of Revenue [Line Items]
Revenues	2,859	1,969
Other
Disaggregation of Revenue [Line Items]
Revenues	$ 396	$ 251

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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