Segment and Revenue Information - Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 134,281	$ 137,100
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Assets	77,083	76,825
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Assets	15,232	14,426
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Assets	16,206	16,149
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Assets	$ 25,760	$ 29,700