Income Tax (Benefit) Provision Calculated at Statutory U.S. Federal Income Tax Rate and Actual Income Tax (Benefit) Provision Recorded (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation Of Statutory Federal Tax Rate [Line Items]
Statutory federal income tax provision (benefit) – continuing operations	$ 81	$ 8	$ (10)
Adjustment for nontaxable (income) loss of Host Inc. – continuing operations	(77)	4
State income tax provision (benefit), net	5	2	(1)
Provision for uncertain tax positions	2	2
Foreign income tax provision	10	15	10
Income tax provision (benefit) – continuing operations	$ 21	$ 31	$ (1)