Goodwill And Acquired Intangibles (Schedule Of Goodwill By Reportable Segment) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Commercial Airplanes [Member]	Dec. 31, 2010 Commercial Airplanes [Member]	Dec. 31, 2009 Commercial Airplanes [Member]	Dec. 31, 2011 Boeing Military Aircraft [Member]	Dec. 31, 2010 Boeing Military Aircraft [Member]	Dec. 31, 2009 Boeing Military Aircraft [Member]	Dec. 31, 2008 Boeing Military Aircraft [Member]	Dec. 31, 2011 Network & Space Systems [Member]	Dec. 31, 2009 Network & Space Systems [Member]	Dec. 31, 2010 Global Services & Support [Member]	Dec. 31, 2009 Global Services & Support [Member]	Dec. 31, 2011 Global Services & Support [Member]	Dec. 31, 2009 Vought [Member]	Dec. 31, 2009 Vought [Member] Commercial Airplanes [Member]	Dec. 31, 2010 Argon ST, Inc. [Member]	Dec. 31, 2010 Argon ST, Inc. [Member] Boeing Military Aircraft [Member]	Dec. 31, 2010 Argon ST, Inc. [Member] Network & Space Systems [Member]	Dec. 31, 2010 Argon ST, Inc. [Member] Global Services & Support [Member]	Dec. 31, 2010 Other Acquisitions [Member]	Dec. 31, 2010 Other Acquisitions [Member] Commercial Airplanes [Member]	Dec. 31, 2010 Other Acquisitions [Member] Network & Space Systems [Member]	Dec. 31, 2010 Other Acquisitions [Member] Global Services & Support [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 4,937	$ 4,319	$ 3,647	$ 2,110	$ 2,083	$ 1,449	$ 1,041	$ 1,041	$ 848	$ 848	$ 1,461	$ 1,084	$ 286	$ 266	$ 325
Acquisitions	16										16					606	606	549	193	345	11	36	18	14	4
Goodwill adjustments	(8)	33	66	(4)	9	28					(4)	18	24	20
Goodwill, Ending Balance	$ 4,945	$ 4,937	$ 4,319	$ 2,106	$ 2,110	$ 2,083	$ 1,041	$ 1,041	$ 848	$ 848	$ 1,473	$ 1,102	$ 325	$ 286	$ 325

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

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