Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Hotel	Dec. 31, 2012	Dec. 31, 2006 Hotel	Dec. 31, 2014 Hotel
Variable Interest Entity [Line Items]
Total number of hotels in which company has variable interest entity	23			21
Number of hotels in which company has an investments and loan balance	22
Loans to owners				$ 23
Unfunded loan commitments expected to be funded in total				105
Unfunded loan commitments to be funded in next twelve months				48
Equity and other potential contributions associated with managed, franchised or joint venture properties				173
Equity and other potential contributions associated with managed, franchised or joint venture properties expected to be funded within one year				70
Surety bonds issued				27
Number of hotels sold			33
Range of possible loss, minimum				0
Range of possible loss, maximum				37
Percentage of U.S. based employees covered by various collective bargaining agreements				23.00%
Estimated insurance claims payable	69			73
Standby letter of credit insurance claims	59			60
Gain in discontinued operations	1	23
VIEs 22 [Member]
Variable Interest Entity [Line Items]
Investment associated with VIEs	116
Loan balance with VIEs	2
VIEs 21 [Member]
Variable Interest Entity [Line Items]
Investment associated with VIEs				106
Loan balance with VIEs				$ 2