Segment and Revenue Information (Schedule Of Depreciation And Amortization Expense By Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 2,114	$ 2,047	$ 1,889
Operating Segments [Member] | Commercial Airplanes
Segment Reporting Information [Line Items]
Depreciation and amortization	565	521	442
Operating Segments [Member] | Defense, Space & Security
Segment Reporting Information [Line Items]
Depreciation and amortization	290	252	220
Operating Segments [Member] | Global Services
Segment Reporting Information [Line Items]
Depreciation and amortization	348	322	312
Operating Segments [Member] | Boeing Capital Corporation [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	58	70	83
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 853	$ 882	$ 832