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BUSINESS SEGMENTS Reconciliation of Assets from Segments (Details) - USD ($) $ in Millions | Jun. 28, 2019 | Jun. 29, 2018 | Jun. 30, 2017
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Assets | $ 10,117 | $ 9,851 | $ 10,112
Identifiable intangibles | 870 | 989 | $ 1,104
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 2,156 | 1,917 |
Corporate | Exelis |  |  |
Segment Reporting Information [Line Items] |  |  |
Identifiable intangibles | 869 | 974 |
Communication Systems | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 1,565 | 1,567 |
Electronic Systems | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | 4,188 | 4,174 |
Space and Intelligence Systems | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets | $ 2,208 | $ 2,193 |

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