Non-controlling Interests - Additional Information (Detail) $ in Millions	Sep. 30, 2023 USD ($) Entity	Dec. 31, 2022 USD ($)
Minority Interest [Line Items]
Number of majority-owned partnerships that have third-party, non-controlling ownership interests that have been consolidated | Entity	2
Non-redeemable non-controlling interests - other consolidated partnerships | $	$ 4	$ 5
HOST HOTELS & RESORTS L.P.
Minority Interest [Line Items]
Shares issuable upon conversion of one common OP unit (in shares)	1.021494	1.021494