Customer Financing (Carrying Values Related to Major Aircraft Concentrations) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Customer Financing [Line Items]
Operating leases	$ 507	$ 474
B-717
Customer Financing [Line Items]
Customer financing carrying value	589	603
Operating leases	58	62
B747-8
Customer Financing [Line Items]
Customer financing carrying value	394	435
B-737
Customer Financing [Line Items]
Customer financing carrying value	204	163
Operating leases	186	145
B-777
Customer Financing [Line Items]
Customer financing carrying value	229	233
Operating leases	221	225
MD 80 Aircraft
Customer Financing [Line Items]
Customer financing carrying value	140	142
B-757
Customer Financing [Line Items]
Customer financing carrying value	121	126
B747-400
Customer Financing [Line Items]
Customer financing carrying value	48	50
Operating leases	$ 0	$ 1