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Historical Cost and Redemption Values for Non-Controlling Interests (Detail) (HOST HOTELS & RESORTS L.P., USD $)
In Millions, except Share data
Jun. 17, 2011
Dec. 31, 2010
HOST HOTELS & RESORTS L.P.
   
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]    
OP units outstanding (millions) 10,600,000 10,500,000
Market price per Host Inc. common share $ 16.09 $ 17.87
Shares issuable upon conversion of one OP unit 1.021494 1.021494
Redemption value (millions) $ 174 $ 191
Historical cost (millions) 104 101
Book value (millions) $ 174 [1] $ 191 [1]
[1] The book value recorded is equal to the greater of the redemption value or the historical cost.