Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 06, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	HST
Entity Registrant Name	HOST HOTELS & RESORTS, INC.
Entity Central Index Key	0001070750
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		741,677,444
HOST HOTELS & RESORTS L.P.
Document Information [Line Items]
Entity Registrant Name	HOST HOTELS & RESORTS L.P.
Entity Central Index Key	0001061937
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer