Customer Financing (Carrying Values Related to Major Aircraft Concentrations) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Customer Financing [Line Items]
Operating leases	$ 1,996		$ 2,038
717 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	1,728	[1]	1,781	[1]
Operating leases	454	[1]	465	[1]
757 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	485	[1]	561	[1]
Operating leases	415	[1]	454	[1]
M D 80 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	420	[1]	446	[1]
787 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	376		286
Operating leases	376		286
747 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	343		221
Operating leases	238		221
MD-11 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	261	[1]	269	[1]
Operating leases	261	[1]	269	[1]
737 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	224		316
Operating leases	147		193
767 Aircraft [Member]
Customer Financing [Line Items]
Customer financing carrying value	205		223
Operating leases	$ 62		$ 63

[1] Out-of-production aircraft