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Revenue - Revenue by Product Line (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 02, 2017 | Apr. 03, 2016
Revenue [Line Items] |  |
Revenues | $ 7,441 | $ 7,476
Aerospace |  |
Revenue [Line Items] |  |
Revenues | 2,074 | 1,781
Aerospace | Aircraft Manufacturing, Outfitting and Completions |  |
Revenue [Line Items] |  |
Revenues | 1,629 | 1,376
Aerospace | Aircraft Services |  |
Revenue [Line Items] |  |
Revenues | 435 | 401
Aerospace | Pre-Owned Aircraft |  |
Revenue [Line Items] |  |
Revenues | 10 | 4
Combat Systems |  |
Revenue [Line Items] |  |
Revenues | 1,287 | 1,245
Combat Systems | Wheeled Combat Vehicles |  |
Revenue [Line Items] |  |
Revenues | 560 | 563
Combat Systems | Weapons Systems and Munitions |  |
Revenue [Line Items] |  |
Revenues | 346 | 341
Combat Systems | Tanks and Tracked Vehicles |  |
Revenue [Line Items] |  |
Revenues | 247 | 192
Combat Systems | Engineering and Other Services |  |
Revenue [Line Items] |  |
Revenues | 134 | 149
Information Systems and Technology |  |
Revenue [Line Items] |  |
Revenues | 2,146 | 2,328
Information Systems and Technology | Information Technology Services |  |
Revenue [Line Items] |  |
Revenues | 1,058 | 1,142
Information Systems and Technology | C4ISR Solutions |  |
Revenue [Line Items] |  |
Revenues | 1,088 | 1,186
Marine Systems |  |
Revenue [Line Items] |  |
Revenues | 1,934 | 2,122
Marine Systems | Nuclear - Powered Submarines |  |
Revenue [Line Items] |  |
Revenues | 1,204 | 1,387
Marine Systems | Surface Combatants |  |
Revenue [Line Items] |  |
Revenues | 247 | 273
Marine Systems | Auxiliary and Commercial Ships |  |
Revenue [Line Items] |  |
Revenues | 143 | 149
Marine Systems | Repair and Other Services |  |
Revenue [Line Items] |  |
Revenues | $ 340 | $ 313

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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