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INTANGIBLE ASSETS - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 28, 2019
Jun. 29, 2018
Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]      
Amortization expense related to intangible assets $ 115 $ 117 $ 126
Exelis      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense related to intangible assets $ 101 $ 101 $ 109