Guarantees and Contingencies - Additional Information (Detail) $ in Millions	1 Months Ended		12 Months Ended
	Jan. 31, 2013 USD ($)	Jan. 31, 2005 Hotel	Dec. 31, 2016 USD ($) Hotel	Dec. 31, 2015 Hotel	Dec. 31, 2014 Hotel
Commitments And Contingencies Disclosure [Line Items]
Aggregate contingent liabilities relating to our former restaurant business			$ 12
Number of hotels sold | Hotel			10	8	5
Future minimum lease payments			$ 1,461
Upper Limit | Atlanta Marriott Marquis
Commitments And Contingencies Disclosure [Line Items]
Environmental liabilities	$ 5
Contingent Consideration Hotel
Commitments And Contingencies Disclosure [Line Items]
Number of hotels sold | Hotel		2
Future minimum lease payments			$ 8