Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Assets	$ 126,261	$ 117,359
Operating Segments [Member] | Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Assets	70,398	64,788
Operating Segments [Member] | Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Assets	19,193	19,594
Operating Segments [Member] | Global Services [Member]
Segment Reporting Information [Line Items]
Assets	18,578	17,921
Operating Segments [Member] | Boeing Capital [Member]
Segment Reporting Information [Line Items]
Assets	2,299	2,809
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Assets	$ 15,793	$ 12,247