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Intangible Assets (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 29, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 2,419 $ 2,582
Accumulated Amortization (1,436) (1,538)
Net Carrying Amount 983 1,044
Contract and Program Intangible Assets
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 1,629 [1] 1,790 [1]
Accumulated Amortization (1,076) [1] (1,189) [1]
Net Carrying Amount 553 [1] 601 [1]
Tradenames and Trademarks
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 505 507
Accumulated Amortization (111) (103)
Net Carrying Amount 394 404
Technology and Software
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 130 130
Accumulated Amortization (95) (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. The decrease in the gross carrying amount and accumulated amortization of contract and program intangible assets from December 31, 2013, to June 29, 2014, is primarily due to the write-off of fully amortized assets in the Information Systems and Technology group