Interest Rate Swap Derivatives Designated as Cash Flow Hedges (Parenthetical) (Detail) NZD in Millions, AUD in Millions, $ in Millions	Dec. 31, 2015 USD ($) Hotel	Dec. 31, 2015 AUD Hotel	Dec. 31, 2015 NZD Hotel	Dec. 31, 2014 USD ($)
Derivative [Line Items]
Mortgage debt | $	$ 350			$ 402
Hotels	107	107	107
Australia
Derivative [Line Items]
Hotels	1	1	1
Australia | Interest Rate Swap | Swap Entered In Connection With Mortgage Loan On Hilton Melbourne South Wharf
Derivative [Line Items]
Mortgage debt	$ 63	AUD 86
New Zealand
Derivative [Line Items]
Hotels	4	4	4
New Zealand | Interest Rate Swap | Swap Entered In Connection With Four Properties
Derivative [Line Items]
Mortgage debt	$ 36		NZD 53
Hotels	4	4	4