Future Minimum Lease Payments for Capital and Operating Leases (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Capital Leases
2015	$ 168	[1]
2016	154	[1]
2017	115	[1]
2018	104	[1]
2019	38	[1]
After 2019	495	[1]
Minimum lease payments	1,074	[1]
Imputed interest	(393)	[1]
Present value of minimum lease payments	681	[1]
Current portion	(110)	[1]	(117)
Long-term obligations under capital leases	571	[1]	753
Present value of minimum lease payments	681	[1]
Facility and Other Operating Leases
Operating Leases
2015	1,283	[2]
2016	1,123	[2]
2017	1,089	[2]
2018	842	[2]
2019	766	[2]
After 2019	7,919	[2]
Minimum lease payments	13,022	[2]
Aircraft Operating Leases
Operating Leases
2015	1,446	[3]
2016	1,247	[3]
2017	1,147	[3]
2018	908	[3]
2019	682	[3]
After 2019	1,910	[3]
Minimum lease payments	$ 7,340	[3]

[1] As of December 31, 2014, United's aircraft capital lease minimum payments relate to leases of 37 mainline and 38 regional aircraft as well as to leases of nonaircraft assets. Imputed interest rate ranges are 3.5% to 18.3%.

[2] See Note 17 of this report for additional information related to facility and other operating leases at Hopkins International Airport ("Cleveland").

[3] The operating lease payments presented above include future payments of $72 million related to 21 nonoperating aircraft as of December 31, 2014.