Guarantees and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended
	Dec. 31, 2013 Hotel	Dec. 31, 2012 Hotel	Dec. 31, 2011 Hotel	Jan. 11, 2013 Atlanta Marriott Marquis	Dec. 31, 2013 Atlanta Marriott Marquis	Jan. 31, 2005 Contingent Consideration Hotel Hotel	Dec. 31, 2013 Contingent Consideration Hotel	Dec. 31, 2013 Municipal Bonds
Commitments And Contingencies Disclosure [Line Items]
Aggregate contingent liabilities relating to our former restaurant business	$ 17
Guarantor obligations, maximum exposure, undiscounted	11.0							14.7
Debt maturity date								2027
Hotel sold that are still contingently liable for ground lease	5	3	1			2
Future minimum lease payments	1,804						12
Environmental liabilities				5	5
Guarantor Obligations, Maximum Payment	4
Guarantee obligation amount	$ 11