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BUSINESS SEGMENTS - Assets by Segment (Details) - USD ($) $ in Millions | Jun. 29, 2018 | Jun. 30, 2017
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Assets | $ 9,851 | $ 10,112
Other intangible assets | 989 | 1,104
Operating Segments | Communication Systems |  |
Segment Reporting Information [Line Items] |  |
Assets | 1,567 | 1,543
Operating Segments | Electronic Systems |  |
Segment Reporting Information [Line Items] |  |
Assets | 4,174 | 4,090
Operating Segments | Space and Intelligence Systems |  |
Segment Reporting Information [Line Items] |  |
Assets | 2,193 | 2,117
Corporate |  |
Segment Reporting Information [Line Items] |  |
Assets | 1,917 | 2,362
Corporate | Exelis |  |
Segment Reporting Information [Line Items] |  |
Other intangible assets | $ 1,000 | $ 1,100

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