Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Schedule of ASC 606 Adoption) (Details) - USD ($) $ / shares in Units, $ 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	Jan. 01, 2016
Item Effected [Line Items]
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)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									10,047	5,568	7,155
Income Tax Expense (Benefit)									(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
Income (Loss) from Continuing Operations, Per Diluted Share									$ 13.43	$ 7.61	$ 7.44
Operating Segments [Member]
Item Effected [Line Items]
Earnings from operations									$ 10,025	$ 6,197	$ 8,481
Unallocated items, eliminations and other [Member]
Item Effected [Line Items]
Revenues									660	(227)	(699)
Earnings from operations									253	(363)	(1,038)
Commercial Airplanes [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									56,729	58,012	59,399
Earnings from operations									5,432	1,995	4,284
Defense, Space & Security [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									21,057	22,563	23,708
Earnings from operations									2,223	1,966	2,312
Global Services [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									14,639	13,925	13,293
Earnings from operations									2,256	2,177	1,835
Boeing Capital Corporation [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									307	298	413
Earnings from operations									114	59	$ 50
Pro Forma [Member]
Item Effected [Line Items]
Revenues									94,005	93,496
Earnings from operations									10,344	6,527
FAS/CAS Service Cost Adjustment									1,438	1,357
Other income/(loss), net									123	(438)
Interest and Debt Expense									(360)	(306)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									10,107	5,783
Income Tax Expense (Benefit)									(1,649)	(749)
Net earnings									$ 8,458	$ 5,034
Income (Loss) from Continuing Operations, Per Diluted Share									$ 13.85	$ 7.83
Pro Forma [Member] | Operating Segments [Member]
Item Effected [Line Items]
Earnings from operations									$ 10,005	$ 5,877
Pro Forma [Member] | Unallocated items, eliminations and other [Member]
Item Effected [Line Items]
Revenues									542	(179)
Earnings from operations									(1,099)	(707)
Pro Forma [Member] | Commercial Airplanes [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									58,014	59,378
Earnings from operations									5,452	1,981
Pro Forma [Member] | Defense, Space & Security [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									20,561	20,180
Earnings from operations									2,193	1,678
Pro Forma [Member] | Global Services [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									14,581	13,819
Earnings from operations									2,246	2,159
Pro Forma [Member] | Boeing Capital Corporation [Member] | Operating Segments [Member]
Item Effected [Line Items]
Revenues									307	298
Earnings from operations									114	59
Sales Revenue, Net [Member] | Pro Forma [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets												$ 10,000
Operating Income (Loss) [Member] | Pro Forma [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets												1,300
Retained Earnings [Member] | Pro Forma [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets												$ 900
Other Income [Member] | Pro Forma [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification									6	478
Liability [Member] | Pro Forma [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification									$ 20,000	$ 19,000