Gain on Insurance Settlements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Feb. 22, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 17, 2011
Gain Contingencies [Line Items]
Gain on business interruption insurance proceeds		$ 0	$ 11	$ 2
Property insurance proceeds			19	11
New Zealand | Loss from Catastrophes
Gain Contingencies [Line Items]
Estimate of maximum insurance deductible amount for property loss					3
Description of loss due to earthquake	On February 22, 2011, Christchurch, New Zealand experienced an earthquake that resulted in substantial damage to the Hotel Novotel Christchurch Cathedral Square and the Hotel ibis Christchurch.	The ibis reopened in September 2012 and the Novotel reopened in August 2013; however, the historic portion of the Novotel, the Warners building, has been demolished and is not expected to be replaced.
Property damage incurred			33
Gain on business interruption insurance proceeds			9	2
Property insurance proceeds		21
Insurance receivable		$ 8