Goodwill and Acquired Intangibles - Schedule of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 8,093	$ 8,057
Goodwill adjustments	(10)	6
Goodwill, ending balance	8,084	8,093
Operating Segments
Goodwill [Roll Forward]
Acquisitions	18	30
Dispositions	(17)
Commercial Airplanes
Goodwill [Roll Forward]
Goodwill, beginning balance	1,319	1,316
Goodwill adjustments
Goodwill, ending balance	1,328	1,319
Commercial Airplanes \| Operating Segments
Goodwill [Roll Forward]
Acquisitions	9	3
Dispositions
Defense, Space & Security
Goodwill [Roll Forward]
Goodwill, beginning balance	3,235	3,224
Goodwill adjustments
Goodwill, ending balance	3,218	3,235
Defense, Space & Security \| Operating Segments
Goodwill [Roll Forward]
Acquisitions		11
Dispositions	(17)
Global Services
Goodwill [Roll Forward]
Goodwill, beginning balance	3,454	3,432
Goodwill adjustments	(10)	6
Goodwill, ending balance	3,444	3,454
Global Services \| Operating Segments
Goodwill [Roll Forward]
Acquisitions		16
Dispositions
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	85	85
Goodwill adjustments
Goodwill, ending balance	94	85
Other \| Operating Segments
Goodwill [Roll Forward]
Acquisitions	9
Dispositions

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