Inventories (Schedule of Inventories) (Details) (USD $) In Millions	Jun. 26, 2011	Dec. 31, 2010
Inventories
Work-in-process, primarily related to long-term contracts and programs in progress	$ 7,028	$ 6,508
Less: Customer advances and progress payments	(5,248)	(4,788)
Inventory for long-term contracts and programs, total	1,780	1,720
Other inventories	446	643
Inventories	$ 2,226	$ 2,363

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Carrying amount as of the balance sheet date of inventories associated with long-term contracts or programs.

+ References

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-Publisher SEC
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Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).

+ References

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Carrying amount as of the balance sheet date of merchandise or goods which are partially completed, are generally comprised of raw materials, labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

+ References

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Carrying amount as of the balance sheet date of inventories of a nature not otherwise specified in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 6
-Subparagraph a
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 3
-Section A
-Paragraph 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of advances received from customers under long-term contracts which have been offset against inventories accounts at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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-Article 5
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