Segment and Revenue Information - Schedule of Depreciation and Amortization Expense by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 460	$ 441	$ 926	$ 883
Operating Segments \| Commercial Airplanes
Segment Reporting Information [Line Items]
Depreciation and amortization	111	96	212	195
Depreciation and amortization expense, business segment allocation	90	86	172	166
Operating Segments \| Defense, Space & Security
Segment Reporting Information [Line Items]
Depreciation and amortization	53	49	103	96
Depreciation and amortization expense, business segment allocation	72	73	140	138
Operating Segments \| Global Services
Segment Reporting Information [Line Items]
Depreciation and amortization	73	75	146	152
Depreciation and amortization expense, business segment allocation	20	20	39	38
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Depreciation and amortization	223	221	465	440
Intersegment revenues eliminated on consolidation
Segment Reporting Information [Line Items]
Depreciation and amortization expense, business segment allocation	$ 182	$ 179	$ 351	$ 342

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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