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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of financial support to be provided in future by investment company to investee.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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Investments in Affiliates - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Jan. 20, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments In And Advances To Affiliates [Line Items]
Cash investments in affiliates		$ 11	$ 5	$ 6
Maui JV
Investments In And Advances To Affiliates [Line Items]
Asset Impairment Charges			21
Maui JV \| HOST HOTELS & RESORTS, INC.
Investments In And Advances To Affiliates [Line Items]
Asset Impairment Charges			$ 14
Noble Management Holdings LLC and Noble Investment Holdings LLC \| Subsequent Event
Investments In And Advances To Affiliates [Line Items]
Cash investments in affiliates	$ 35
Investments in affiliates capital commitments	$ 150
Business Combination, percentage of gross carried interest earned	40.00%
Noble Management Holdings LLC and Noble Investment Holdings LLC \| Subsequent Event \| Maximum
Investments In And Advances To Affiliates [Line Items]
Business Combination, percentage of aggregate interest acquired	26.00%
Noble Management Holdings LLC and Noble Investment Holdings LLC \| Noble Investment Group LLC \| Forecast
Investments In And Advances To Affiliates [Line Items]
Business Combination, percentage of aggregate interest acquired	100.00%
Noble Management Holdings LLC and Noble Investment Holdings LLC \| Noble Investment Group LLC \| Subsequent Event
Investments In And Advances To Affiliates [Line Items]
Business Acquisition, Percentage of voting interests acquired	49.00%
Noble Management Holdings LLC and Noble Investment Holdings LLC \| Noble Investment Group LLC \| Host L.P. \| Subsequent Event
Investments In And Advances To Affiliates [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 56