Basis Of Presentation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014 KC-46A Tanker [Member]	Jun. 30, 2014 Commercial Airplanes Segment [Member]	Jun. 30, 2014 Boeing Defense Space Security Segment [Member]
Basis of Presentation [Line Items]
Change in diluted earnings per share due to net favorable cumulative catch-up adjustments	$ 0.08	$ 0.02	$ (0.06)	$ 0.17
Increase/(Decrease) in Earnings from operations due to change in accounting estimate.	$ 91	$ 20	$ (54)	$ 184	$ (425)	$ (238)	$ (187)

Changes in estimated revenues, cost of sales and the related effect on operating income are recognized using a cumulative catch-up adjustment which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a contract’s percent complete

No definition available.

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