Summary Of Business Segment Data (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Revenues	$ 24,309	$ 23,898	$ 68,024	$ 71,285
Earnings from operations	2,689	2,282	7,248	3,651
Other income, net	45	2	94	41
Interest and debt expense	(87)	(81)	(267)	(227)
Earnings before income taxes	2,647	2,203	7,075	3,465
Income tax (expense)/benefit	(794)	76	(2,010)	(201)
Net earnings	1,853	2,279	5,065	3,264
Operating Segments [Member]
Segment Reporting Information [Line Items]
Earnings from operations	2,571	2,394	7,044	3,892
Operating Segments [Member] | Commercial Airplanes [Member]
Segment Reporting Information [Line Items]
Revenues	14,982	15,200	41,263	43,630
Earnings from operations	1,483	1,293	3,648	804
Operating Segments [Member] | Defense, Space & Security [Member]
Segment Reporting Information [Line Items]
Revenues	5,470	5,751	15,520	17,281
Earnings from operations	559	564	1,670	1,443
Operating Segments [Member] | Global Services [Member]
Segment Reporting Information [Line Items]
Revenues	3,568	3,506	10,638	10,508
Earnings from operations	506	524	1,639	1,609
Operating Segments [Member] | Boeing Capital [Member]
Segment Reporting Information [Line Items]
Revenues	70	63	234	211
Earnings from operations	23	13	87	36
Unallocated items, eliminations and other [Member]
Segment Reporting Information [Line Items]
Revenues	219	(622)	369	(345)
Earnings from operations	$ 118	$ (112)	$ 204	$ (241)