Acquisitions (Integration Costs) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Apr. 01, 2016
Business Acquisition [Line Items]
Total acquisition and integration costs	$ 19	$ 9
Information Systems & Global Solutions Business of Lockheed Martin
Business Acquisition [Line Items]
Acquisition costs	1	6
Integration costs	18	3
Total acquisition and integration costs	$ 19	$ 9

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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