Segment and Revenue Information - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 19,496	$ 16,569
Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	8,147	4,653
Commercial Airplanes | Operating Segments | Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 8,120	$ 4,603
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%
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%
Commercial Airplanes | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 3,783	$ 985
Commercial Airplanes | Operating Segments | Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	4,337	4,061
Commercial Airplanes | Operating Segments | Europe
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	508	770
Commercial Airplanes | Operating Segments | Asia
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,957	2,113
Commercial Airplanes | Operating Segments | Middle East
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	483	768
Commercial Airplanes | Operating Segments | Other non-U.S.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	389	410
Commercial Airplanes | Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	27	50
Defense, Space & Security | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	$ 6,298	$ 6,950
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%	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	58.00%	58.00%
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%
Defense, Space & Security | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 4,933	$ 5,444
Defense, Space & Security | Operating Segments | Total non-U.S. revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,365	1,506
Global Services | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	5,063	5,045
Global Services | Operating Segments | Commercial
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,971	3,000
Global Services | Operating Segments | Government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,996	1,934
Global Services | Operating Segments | Total revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 4,967	$ 4,934
Global Services | Operating Segments | Revenue from the U.S. government
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax, percentage	30.00%	29.00%
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%
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	54.00%	54.00%
Global Services | Intersegment revenues eliminated on consolidation
Disaggregation of Revenue [Line Items]
Total revenues	$ 96	$ 111
B-737-Max | Customer Concessions | Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax		$ (443)