Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Feb. 16, 2012	Jun. 17, 2011
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY
Trading Symbol	HST
Entity Registrant Name	HOST HOTELS & RESORTS, INC.
Entity Central Index Key	0001070750
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		707,561,384
Entity Public Float			$ 10,807,209,930
HOST HOTELS & RESORTS L.P.
Entity Registrant Name	Host Hotels & Resorts L.P.
Entity Central Index Key	0001061937
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		703,107,908