Net Income (Loss) Attributable to Host Inc. (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net income (loss) attributable to Host Inc.									$ 317	$ 61	$ (15)
HOST HOTELS & RESORTS, INC.
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Continuing operations, net of tax									203	(10)	(26)
Discontinued operations, net of tax									114	71	11
Net income (loss) attributable to Host Inc.	$ 123	$ 19	$ 119	$ 56	$ 15	$ (34)	$ 82	$ (2)	$ 317	$ 61	$ (15)