Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Other	$ 16	$ 15
Intangible assets, gross	825	785
Accumulated amortization	(200)	(187)
Intangible assets, net (excluding goodwill), Total	625	598
Trademarks and trade names [Member]
Goodwill [Line Items]
Indefinite-lived intangible assets	316	314
Management and franchise agreements [Member]
Goodwill [Line Items]
Management and franchise agreements	$ 493	$ 456