Summary Of Business Segment Data (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenues	$ 24,258	$ 23,051	$ 47,640	$ 45,012
Earnings from operations	2,710	2,530	5,585	4,736
Other income/(loss), net	(15)	25	51	51
Interest and debt expense	(109)	(93)	(211)	(180)
Earnings before income taxes	2,586	2,462	5,425	4,607
Income tax expense	(390)	(713)	(752)	(1,279)
Net earnings	2,196	1,749	4,673	3,328
Operating Segments [Member]
Segment Reporting Information [Line Items]
Earnings from operations	2,792	2,490	5,613	4,571
Operating Segments [Member] | Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Revenues	14,481	14,280	28,133	27,233
Earnings from operations	1,644	1,282	3,152	2,152
Operating Segments [Member] | Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Revenues	5,593	5,142	11,355	10,254
Earnings from operations	521	614	1,170	1,163
Operating Segments [Member] | Global Services [Member]
Segment Reporting Information [Line Items]
Revenues	4,090	3,552	8,033	7,205
Earnings from operations	603	569	1,247	1,192
Operating Segments [Member] | Boeing Capital [Member]
Segment Reporting Information [Line Items]
Revenues	72	72	137	164
Earnings from operations	24	25	44	64
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Revenues	22	5	(18)	156
Earnings from operations	(399)	(317)	(710)	(538)
FAS/CAS service cost adjustment	$ 317	$ 357	$ 682	$ 703