Interest Rate Swap Derivatives Designated as Cash Flow Hedges (Detail) In Millions, unless otherwise specified	12 Months Ended									12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 Cash Flow Hedging Interest Rate Swap 1 USD ($)		Dec. 31, 2012 Cash Flow Hedging Interest Rate Swap 1 USD ($)		Dec. 31, 2013 Cash Flow Hedging Interest Rate Swap 1 AUD		Dec. 31, 2013 Cash Flow Hedging Interest Rate Swap 2 USD ($)		Dec. 31, 2012 Cash Flow Hedging Interest Rate Swap 2 USD ($)		Dec. 31, 2013 Cash Flow Hedging Interest Rate Swap 2 NZD
Derivative [Line Items]
Transaction Date				November 2011	[1]					February 2011	[2]
Notional Amount								62	[1]					79	[2]
Maturity Date				2016-11	[1]					2016-02	[2]
Swapped Index				Reuters BBSY	[1]					NZ$ Bank Bill	[2]
All-in-Rate								6.70%	[1]					7.15%	[2]
Change in fair value of derivative instruments	$ (3)	$ (7)	$ 1	$ 1	[1]	$ (2)	[1]			$ 2	[2]	$ 0	[2]

[1] The swap was entered into in connection with the A$82 million ($71 million) mortgage loan on the Hilton Melbourne South Wharf.

[2] The swap was entered into in connection with the NZ$105 million ($87 million) mortgage loan on seven properties in New Zealand.