Segment and Revenue Information - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 17,840	$ 18,104	$ 51,275	$ 55,776
Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	7,443	7,876	18,099	23,420
Commercial Airplanes | Operating Segments | Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 7,423	$ 7,855	$ 18,006	$ 23,352
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	99.00%	99.00%	99.00%	99.00%
Commercial Airplanes | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 2,354	$ 3,260	$ 5,512	$ 10,435
Commercial Airplanes | Operating Segments | Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	5,069	4,567	12,937	12,863
Commercial Airplanes | Operating Segments | Europe
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,499	1,050	3,046	4,443
Commercial Airplanes | Operating Segments | Asia
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,635	1,623	7,028	3,978
Commercial Airplanes | Operating Segments | Middle East
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	444	1,257	1,618	2,723
Commercial Airplanes | Operating Segments | Other non-U.S.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	491	637	1,245	1,719
Commercial Airplanes | Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	20	21	93	68
Defense, Space & Security | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	$ 5,536	$ 5,481	$ 18,507	$ 18,187
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%	94.00%	91.00%	91.00%
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	49.00%	54.00%	53.00%	57.00%
Defense, Space & Security | Operating Segments | Revenue recognized over time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	99.00%	99.00%	99.00%	99.00%
Defense, Space & Security | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 4,361	$ 4,348	$ 14,324	$ 14,686
Defense, Space & Security | Operating Segments | Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,175	1,133	4,183	3,501
Global Services | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	4,901	4,812	14,835	14,278
Global Services | Operating Segments | Commercial
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,882	2,799	8,782	8,218
Global Services | Operating Segments | Government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,935	1,919	5,764	5,793
Global Services | Operating Segments | Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 4,817	$ 4,718	$ 14,546	$ 14,011
Global Services | Operating Segments | Revenue from the U.S. government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	29.00%	30.00%	29.00%	31.00%
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%	88.00%	87.00%	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	53.00%	52.00%	53.00%	51.00%
Global Services | Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	$ 84	$ 94	$ 289	$ 267
B-737-Max | Customer Concessions | Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax		$ 28	$ (443)	$ 54