Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Assets	$ 132,598	$ 117,359
Operating Segments [Member] | Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Assets	74,994	64,788
Operating Segments [Member] | Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Assets	19,431	19,594
Operating Segments [Member] | Global Services [Member]
Segment Reporting Information [Line Items]
Assets	18,696	17,921
Operating Segments [Member] | Boeing Capital [Member]
Segment Reporting Information [Line Items]
Assets	2,246	2,809
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Assets	$ 17,231	$ 12,247