Summary Of Business Segment Data (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total revenues	$ 25,368	$ 24,309	$ 22,739	$ 20,976	$ 23,286	$ 23,898	$ 24,755	$ 22,632	$ 93,392	$ 94,571	$ 96,114
Earnings from operations	3,030	2,689	2,535	2,024	2,183	2,282	(419)	1,788	10,278	5,834	7,443
Other income/(loss), net									129	40	(13)
Interest and debt expense									(360)	(306)	(275)
Earnings before income taxes									10,047	5,568	7,155
Income tax expense									(1,850)	(673)	(1,979)
Net earnings	$ 3,132	$ 1,853	$ 1,761	$ 1,451	$ 1,631	$ 2,279	$ (234)	$ 1,219	8,197	4,895	5,176
Operating Segments [Member]
Segment Reporting Information [Line Items]
Earnings from operations									10,025	6,197	8,481
Operating Segments [Member] | Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Total revenues									56,729	58,012	59,399
Earnings from operations									5,432	1,995	4,284
Operating Segments [Member] | Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Total revenues									21,057	22,563	23,708
Earnings from operations									2,223	1,966	2,312
Operating Segments [Member] | Global Services [Member]
Segment Reporting Information [Line Items]
Total revenues									14,639	13,925	13,293
Earnings from operations									2,256	2,177	1,835
Operating Segments [Member] | Boeing Capital Corporation [Member]
Segment Reporting Information [Line Items]
Total revenues									307	298	413
Earnings from operations									114	59	50
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Total revenues									660	(227)	(699)
Earnings from operations									$ 253	$ (363)	$ (1,038)