Debt - Non-recourse Debt (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014 Capital lease obligations of consolidated VIEs [member]	Dec. 31, 2013 Capital lease obligations of consolidated VIEs [member]	Dec. 31, 2012 Capital lease obligations of consolidated VIEs [member]	Jun. 30, 2014 Non-recourse debt of consolidated VIEs [member]	Dec. 31, 2013 Non-recourse debt of consolidated VIEs [member]		Dec. 31, 2012 Non-recourse debt of consolidated VIEs [member]	Jun. 30, 2014 Timeshare Facility [member]	Dec. 31, 2013 Timeshare Facility [member]	Aug. 31, 2013 Timeshare Facility [member]	Jun. 30, 2014 Securitized Timeshare Debt [member]	Dec. 31, 2013 Securitized Timeshare Debt [member]	Aug. 31, 2013 Securitized Timeshare Debt [member]
Non-recourse Debt [Line Items]
Non-recourse debt, including current maturities				$ 259	$ 255	$ 373	$ 40	$ 41		$ 47	$ 150	$ 450	$ 400	$ 548	$ 222	$ 250
Debt instrument, interest rate, stated percentage				6.34%	6.34%						1.48%	1.42%			2.28%	2.28%
Debt instrument, weighted average interest rate							3.38%	3.30%	[1]					1.98%
Non-recourse debt and capital lease obligations, including current maturities	997	968	420
Current maturities of non-recourse debt	(107)	(48)	(15)
Non-recourse debt	$ 890	$ 920	$ 405

[1] Excludes the non-recourse debt of our VIE that issued the Securitized Timeshare Debt, as this is presented separately.