Orbitz Worldwide - Summary Results of Operations for Orbitz Worldwide (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Related Party Transaction [Line Items]
Net revenue	$ 572	$ 548	$ 2,080
Operating income	75	69
Interest expense, net	(83)	(70)
(Provision for) benefit from income taxes	10	11
Orbitz Worldwide [Member]
Related Party Transaction [Line Items]
Net revenue	210	203
Operating expenses	199	206
Operating income	11	(3)
Interest expense, net	(10)	(9)
Income (loss) before income taxes	1	(12)
(Provision for) benefit from income taxes	(7)	158
Net (loss) income	$ (6)	$ 146