Goodwill And Acquired Intangibles (Schedule Of Goodwill By Reportable Segment) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 5,126	$ 5,119
Acquisitions	206	21
Goodwill adjustments	(8)	(14)
Goodwill, Ending Balance	5,324	5,126
Operating Segments [Member] \| Commercial Airplanes [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	2,123	2,131
Acquisitions		6
Goodwill adjustments	(8)	(14)
Goodwill, Ending Balance	2,115	2,123
Operating Segments [Member] \| Defense, Space & Security [Member] \| Boeing Military Aircraft [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	976	961
Acquisitions	206	15
Goodwill adjustments
Goodwill, Ending Balance	1,182	976
Operating Segments [Member] \| Defense, Space & Security [Member] \| Network & Space Systems [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,566	1,566
Acquisitions
Goodwill adjustments
Goodwill, Ending Balance	1,566	1,566
Operating Segments [Member] \| Defense, Space & Security [Member] \| Global Services & Support [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	461	461
Acquisitions
Goodwill adjustments
Goodwill, Ending Balance	$ 461	$ 461

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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