Segment and Revenue Information - Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 137,695	$ 137,012
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Assets	81,050	77,047
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Assets	15,739	14,921
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Assets	16,724	16,193
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Assets	$ 24,182	$ 28,851