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Historical Cost and Redemption Values for Non-Controlling Interests (Detail)
$ / shares in Units, shares in Millions, $ in Millions
Jun. 30, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]    
Book value (millions) $ 168 $ 164
HOST HOTELS & RESORTS L.P.    
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]    
Common OP units outstanding (millions) | shares 9.8 10.0
Market price per Host Inc. common share | $ / shares $ 16.83 $ 16.05
Shares issuable upon conversion of one common OP unit 1.021494 1.021494
Redemption value (millions) $ 168 $ 164
Historical cost (millions) 99 97
Book value (millions) [1] $ 168 $ 164
[1] The book value recorded is equal to the greater of redemption value or historical cost.