Customer Financing - Schedule of Customer Financing Carrying Values Related to Major Aircraft Concentrations (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Customer Financing [Line Items]
Operating lease equipment	$ 470	$ 474
B-717 Aircraft
Customer Financing [Line Items]
Gross customer financing	563	603
Operating lease equipment	45	62
B-747-8
Customer Financing [Line Items]
Gross customer financing	394	435
B-737 Aircraft
Customer Financing [Line Items]
Gross customer financing	186	163
Operating lease equipment	174	145
B-777
Customer Financing [Line Items]
Gross customer financing	209	233
Operating lease equipment	209	225
MD-80 Aircraft
Customer Financing [Line Items]
Gross customer financing	96	142
B-757 Aircraft
Customer Financing [Line Items]
Gross customer financing	107	126
B-747-400 aircraft
Customer Financing [Line Items]
Gross customer financing	46	50
Operating lease equipment	$ 0	$ 1