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Historical Cost and Redemption Values for the Non-Controlling Interests (Detail) (HOST HOTELS & RESORTS L.P., USD $)
In Millions, except Share data
Dec. 31, 2010
Dec. 31, 2009
HOST HOTELS & RESORTS L.P.
   
Shares Subject to Mandatory Redemption by Settlement Terms [Line Items]    
OP units outstanding 10,500,000 11,700,000
Market price per Host Inc. common share $ 17.87 $ 11.67
OP Unit Conversion basis 1.021494 1.021494
Redemption value $ 191 $ 139
Historical cost 101 113
Book value $ 191 [1] $ 139 [1]
[1] The book value recorded is equal to the greater of the redemption value or the historical cost.