Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Common stock, par value	$ 0.01
Common stock, shares authorized	1,050
Common stock, shares outstanding	724.6	705.1
HOST HOTELS & RESORTS, INC.
Senior notes	$ 531	902
Credit facility, term loan	500
Common stock, par value	$ 0.01	0.01
Common stock, shares authorized	1,050	1,050
Common stock, shares issued	724.6	705.1
Common stock, shares outstanding	724.6	705.1
HOST HOTELS & RESORTS L.P.
Senior notes	531	902
Credit facility, term loan	$ 500