Customer Financing (Schedule of Customer Financing Carrying Values Related to Major Aircraft Concentrations) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Customer Financing [Line Items]
Gross customer financing	$ 3,586	$ 3,582
Operating lease equipment	1,710	1,677
717 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	1,415	1,562
Operating lease equipment	372	421
B747 aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	1,038	601
Operating lease equipment	1,038	601
MD-80 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	$ 314	$ 358
Operating lease equipment
757 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	$ 270	$ 370
Operating lease equipment	48	349
767 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	185	158
Operating lease equipment	84	47
737 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	115	156
Operating lease equipment	115	127
MD-11 Aircraft [Member]
Customer Financing [Line Items]
Gross customer financing	35	114
Operating lease equipment	$ 35	$ 114