Liabilities, Commitments, and Contingencies - Schedule of 737 Max Customer Concessions and Other Considerations Liability (Details) - B-737 Aircraft - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Customer Concession And Other Consideration Liability [Roll Forward]
Beginning balance – January 1	$ 1,327	$ 1,864
Reductions for payments made	(929)	(449)
Reductions for concessions and other in-kind considerations	(267)	(61)
Changes in estimates	510	(27)
Ending balance – December 31	$ 641	$ 1,327