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DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES - Reclassification of Prior Period Amounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restructuring	$ 17	$ 0	$ 29
Revision of Prior Period, Adjustment | 2020 Restructuring Activities | Sales, marketing and operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restructuring			29
Revision of Prior Period, Adjustment | 2020 Restructuring Activities | General and administrative
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restructuring			21
Revision of Prior Period, Adjustment | 2020 Restructuring Activities | Sales, marketing and operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restructuring			6
Revision of Prior Period, Adjustment | 2020 Restructuring Activities | Technology and development
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restructuring			$ 2

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
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-Name Accounting Standards Codification
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