Basis Of Presentation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basis of Presentation [Line Items]
Change in diluted earnings per share due to net favorable cumulative catch-up adjustments	$ (0.41)	$ 0.04	$ (0.16)	$ 0.15
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	$ (312)	$ 59	$ (145)	$ 164
KC-46A Tanker [Member]
Basis of Presentation [Line Items]
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	(425)
Commercial Airplanes Segment [Member]
Basis of Presentation [Line Items]
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	(238)
Boeing Defense Space Security Segment [Member]
Basis of Presentation [Line Items]
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	$ (187)