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Acquisitions and Divestitures, Goodwill, and Intangible Assets Intangible Assets (Detail) - USD ($) $ in Millions | Apr. 02, 2017 | Dec. 31, 2016
--- | --- | ---
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | [1] | $ 2,355 | $ 2,354
Accumulated Amortization |  | (1,676) | (1,676)
Net Carrying Amount |  | 679 | 678
Contract and Program Intangible Assets |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | [1],[2] | 1,626 | 1,633
Accumulated Amortization | [2] | (1,273) | (1,281)
Net Carrying Amount | [2] | 353 | 352
Trade Names and Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | [1] | 455 | 446
Accumulated Amortization |  | (146) | (139)
Net Carrying Amount |  | 309 | 307
Technology and Software |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | [1] | 120 | 121
Accumulated Amortization |  | (103) | (102)
Net Carrying Amount |  | 17 | 19
Other Intangible Assets |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | [1] | 154 | 154
Accumulated Amortization |  | (154) | (154)
Net Carrying Amount |  | $ 0 | $ 0
[1] | Change in gross carrying amounts consists primarily of adjustments for foreign currency translation and acquired intangible assets.
[2] | Consists of acquired backlog and probable follow-on work and associated customer relationships.

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