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Historical Cost and Redemption Values for Non-Controlling Interests (Detail)
$ / shares in Units, $ in Millions
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]      
Book value (millions) $ 164 $ 126  
HOST HOTELS & RESORTS L.P.      
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]      
Common OP units outstanding (millions) | shares 10.0 7.1  
Market price per Host Inc. common share | $ / shares $ 16.05 $ 17.39  
Shares issuable upon conversion of one common OP unit 1.021494 1.021494 1.021494
Redemption value (millions) $ 164 $ 126  
Historical cost (millions) 97 66  
Book value (millions) [1] $ 164 $ 126  
[1] The book value recorded is equal to the greater of the redemption value or the historical cost.