Financing Receivables and Operating Lease Equipment - Schedule of Customer Financing Carrying Values Related to Major Aircraft Concentrations (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
B-717 Aircraft
Financing Receivables and Operating Lease Equipment [Line Items]
Gross customer financing	$ 196	$ 478
B-777 Aircraft
Financing Receivables and Operating Lease Equipment [Line Items]
Gross customer financing	183	194
B-747-8 Aircraft
Financing Receivables and Operating Lease Equipment [Line Items]
Gross customer financing	92	129
B-737 Aircraft
Financing Receivables and Operating Lease Equipment [Line Items]
Gross customer financing	47	156
B-747-400 Aircraft
Financing Receivables and Operating Lease Equipment [Line Items]
Gross customer financing		$ 43