Liabilities, Commitments and Contingencies - Schedule of 737 Max Customer Concessions and Other Considerations Liability (Details) - B-737 - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Customer Concession And Other Consideration Liability [Roll Forward]
Beginning balance – January 1	$ 641	$ 1,327
Reductions for payments made	(38)	(553)
Reductions for concessions and other in-kind considerations	(35)
Changes in estimates		510
Ending balance – March 31	$ 568	$ 1,284