Debt - Additional Information (Detail) In Millions, unless otherwise specified	1 Months Ended
	Sep. 09, 2011 USD ($)	Aug. 31, 2011 Exchangeable 2007 Senior Debentures 2.625 Percent Due April 2027 USD ($)	Jun. 30, 2011 Exchangeable Senior Debentures 3.25 Percent USD ($)	May 27, 2011 Exchangeable Senior Debentures 3.25 Percent USD ($)	Jun. 28, 2011 European Joint Venture Le Meridien Piccadilly USD ($)	Jun. 28, 2011 European Joint Venture Le Meridien Piccadilly GBP (£)
Debt Disclosure [Line Items]
Redemption description				We gave notice of our intent to redeem $150 million of the outstanding $325 million 3.25% exchangeable senior debentures (2004 Debentures).
Repurchase of debt, face amount		$ 105		$ 150
Debt principal outstanding		421		325
Debt interest rate		2.625%		3.25%
Value of debentures converted to equity			134
Repurchase of debt, carrying value		102
Debt converted into shares of Host Inc. common stock			8.8
Debentures redeemed for cash		106	16
Gain (loss) on redemption of debt		(4)
Mortgage debt assumed					52	32
Capital lease transferred					61	38
Repayment of credit facility					40	25
Remaining available capacity under credit facility	$ 481
Description of extension of maturity of credit facility	Additionally, on September 9, 2011, we exercised our option to extend the maturity of our credit facility through September 9, 2012.