Orbitz Worldwide - Summary Results of Operations for Orbitz Worldwide (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related Party Transaction [Line Items]
Net revenue		$ 2,076	$ 2,002	$ 2,035
Operating income		208	138	200
Interest expense, net		(342)	(290)	(287)
(Loss) gain on early extinguishment of debt		(49)	6
Benefit from (provision for) income taxes		(20)	(23)	(29)
Orbitz Worldwide [Member]
Related Party Transaction [Line Items]
Net revenue		847	779	767
Operating expenses (excluding impairment)		782	720	712
Impairment of goodwill, intangible assets, property and equipment and other long-lived assets		3	321	50
Operating income		62	(262)	5
Interest expense, net		(44)	(37)	(41)
(Loss) gain on early extinguishment of debt		(18)
Other income (loss)				1
Loss before income taxes			(299)	(35)
Benefit from (provision for) income taxes	(158)	165	(3)	(2)
Net income (loss)		$ 165	$ (302)	$ (37)