Segment and Revenue Information - Schedule of Depreciation and Amortization Expense by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 466	$ 442
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Depreciation and amortization	101	99
Depreciation and amortization expense, business segment allocation	82	80
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Depreciation and amortization	50	47
Depreciation and amortization expense, business segment allocation	68	65
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Depreciation and amortization	73	77
Depreciation and amortization expense, business segment allocation	19	18
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Depreciation and amortization	242	219
Intersegment revenues eliminated on consolidation
Segment Reporting Information [Line Items]
Depreciation and amortization expense, business segment allocation	$ 169	$ 163