Additional Information - Acquisitions (Detail) In Millions, unless otherwise specified	12 Months Ended			4 Months Ended	12 Months Ended		3 Months Ended					3 Months Ended		0 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 28, 2012 USD ($)	Dec. 28, 2012 Land For Hotel USD ($)	Dec. 28, 2012 Land and Building for Hotel USD ($)	Dec. 30, 2011 Land and Building for Hotel USD ($)	Jun. 30, 2015 Delta Hotels and Resorts Scenario, Forecast USD ($) hotel_and_resort room	Jun. 30, 2015 Delta Hotels and Resorts Scenario, Forecast CAD	Jun. 30, 2014 Protea Hospitality Holdings USD ($) room hotel brand country	Jun. 30, 2014 Protea Hospitality Holdings ZAR	Dec. 31, 2014 Protea Hospitality Holdings country	Dec. 31, 2014 Brazil, Property Under Construction USD ($)	Dec. 31, 2014 Brazil, Property Under Construction BRL	Oct. 01, 2012 Gaylord Entertainment Corporation USD ($) location room	Dec. 01, 2012 Gaylord Entertainment Corporation room
Significant Acquisitions and Disposals [Line Items]
Acquisition amount								168
Cash consideration paid		115					135		193	2,046		31	74	210
Number of open hotels and resorts acquired							38	38
Number of rooms acquired							10,000	10,000
Number of managed hotels and resorts acquired							28	28
Number of managed hotels and resorts acquired, 30 year management agreement							13	13
Number of franchised hotels and resorts acquired							10	10
Number of hotels and resorts under development acquired							5	5
Number of hotels and resorts under development acquired, 30 year management agreement							1	1
Recognized identifiable assets and liabilities acquired									184	1,943
Acquired intangible assets recognized									91	960				210
Indefinite-lived intangible assets									73	772
Goodwill	894	874	874						20	211
Recognized identifiable tangible assets acquired									9	103
Number of hotels acquired									113	113				4
Number of hotel rooms acquired									10,016	10,016				7,800	300
Number of hotel brands									3	3
Number of countries in which entity operates									6	6	7
Percent of hotel rooms managed									45.00%	45.00%
Percent of hotel rooms franchised									39.00%	39.00%
Percent of hotel rooms leased									16.00%	16.00%
Payments to acquire property, plant, and equipment	411	296	437	32	160
Security deposit						$ 6