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Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified | Sep. 28, 2014 | Dec. 31, 2013
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount | $ 2,397 |  | $ 2,582 |
Accumulated Amortization | (1,468) |  | (1,538) |
Net Carrying Amount | 929 |  | 1,044 |
Contract and Program Intangible Assets |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount | 1,626 | [1] | 1,790 | [1]
Accumulated Amortization | (1,102) | [1] | (1,189) | [1]
Net Carrying Amount | 524 | [1] | 601 | [1]
Tradenames and Trademarks |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount | 487 |  | 507 |
Accumulated Amortization | (118) |  | (103) |
Net Carrying Amount | 369 |  | 404 |
Technology and Software |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount | 129 |  | 130 |
Accumulated Amortization | (94) |  | (92) |
Net Carrying Amount | 35 |  | 38 |
Other Intangible Assets |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount | 155 |  | 155 |
Accumulated Amortization | (154) |  | (154) |
Net Carrying Amount | $ 1 |  | $ 1 |
[1] | Consists of acquired backlog and probable follow-on work and related customer relationships.

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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