Segment and Revenue Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Assets	$ 133,625	$ 117,359
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Assets	73,995	61,116
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Assets	15,977	18,023
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Assets	18,605	17,856
Operating Segments | Boeing Capital Corporation [Member]
Segment Reporting Information [Line Items]
Assets	2,269	2,809
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Assets	$ 22,779	$ 17,555