Mortgage Debt Issuances and Repayments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Exit fee	$ 23	$ 21	$ 5
Hyatt Regency Reston
Debt Instrument [Line Items]
Basis points addition	3.10%
Maturity extension option period	1 year
J W Marriott Washington D C
Debt Instrument [Line Items]
Exit fee		$ 1