Spirit Acquisition - Narrative (Details) - USD ($) $ in Millions	Dec. 08, 2025	Mar. 31, 2026	Dec. 31, 2025
Business Combination [Line Items]
Goodwill		$ 17,633	$ 17,275
Spirit AeroSystems Holdings, Inc.
Business Combination [Line Items]
Business combination, consideration transferred	$ 8,389
Goodwill	9,997	$ 10,360
Business combination, recognized liability assumed, accrued liability	$ 1,500
Business combination, finalized purchase price allocation, duration	1 year
Spirit AeroSystems Holdings, Inc. | Customer Relationships
Business Combination [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years