Segment and Revenue Information - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 22,749	$ 16,866	$ 42,245	$ 33,435
Commercial Airplanes \| Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	10,874	6,003	19,021	10,656
Commercial Airplanes \| Operating Segments \| Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 10,854	$ 5,980	$ 18,974	$ 10,583
Commercial Airplanes \| Operating Segments \| Revenue recognized on fixed-price contracts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	100.00%	100.00%	100.00%	100.00%
Commercial Airplanes \| Operating Segments \| Revenue recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	100.00%	99.00%	100.00%	99.00%
Commercial Airplanes \| Operating Segments \| United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 5,361	$ 2,173	$ 9,144	$ 3,158
Commercial Airplanes \| Operating Segments \| Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	5,488	3,807	9,825	7,868
Commercial Airplanes \| Operating Segments \| Europe
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	990	777	1,498	1,547
Commercial Airplanes \| Operating Segments \| Asia
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,422	2,280	5,379	4,393
Commercial Airplanes \| Operating Segments \| Middle East
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,277	406	1,760	1,174
Commercial Airplanes \| Operating Segments \| Other non-U.S.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	799	344	1,188	754
Commercial Airplanes \| Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	20	23	47	73
Defense, Space & Security \| Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	$ 6,617	$ 6,021	$ 12,915	$ 12,971
Defense, Space & Security \| Operating Segments \| Revenue from the U.S. government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	92.00%	89.00%	92.00%	90.00%
Defense, Space & Security \| Operating Segments \| Revenue recognized on fixed-price contracts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	58.00%	52.00%	58.00%	55.00%
Defense, Space & Security \| Operating Segments \| Revenue recognized over time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	100.00%	99.00%	100.00%	99.00%
Defense, Space & Security \| Operating Segments \| United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 5,227	$ 4,519	$ 10,160	$ 9,963
Defense, Space & Security \| Operating Segments \| Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,390	1,502	2,755	3,008
Global Services \| Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	5,281	4,889	10,344	9,934
Global Services \| Operating Segments \| Commercial
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,996	2,900	5,967	5,900
Global Services \| Operating Segments \| Government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,172	1,895	4,168	3,829
Global Services \| Operating Segments \| Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 5,168	$ 4,795	$ 10,135	$ 9,729
Global Services \| Operating Segments \| Revenue from the U.S. government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	31.00%	27.00%	30.00%	28.00%
Global Services \| Operating Segments \| Revenue recognized on fixed-price contracts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	86.00%	87.00%	86.00%	87.00%
Global Services \| Operating Segments \| Revenue recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	52.00%	53.00%	53.00%	53.00%
Global Services \| Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	$ 113	$ 94	$ 209	$ 205
B-737-Max \| Customer Concessions \| Commercial Airplanes \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 5		$ 5	$ (443)