Document And Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2019	Jan. 24, 2020	Jun. 30, 2019
Document and Entity Information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	1-442
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	100 N. Riverside Plaza,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606-1596
Entity Tax Identification Number	91-0425694
City Area Code	(312)
Local Phone Number	544-2000
Title of 12(b) Security	Common Stock, $5.00 Par Value
Trading Symbol	BA
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Public Float			$ 204.8
Entity Common Stock, Shares Outstanding		563,152,208
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	BOEING CO
Entity Central Index Key	0000012927
Current Fiscal Year End Date	--12-31