RELATED PARTY TRANSACTIONS - Equity Method Investment Summarized Financial Information, Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Total Assets (primarily composed of hotel real estate managed by us)	$ 25,553	$ 24,701
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Total Assets (primarily composed of hotel real estate managed by us)	1,229	2,348
Total Liabilities	$ 865	$ 1,623

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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