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Leases and Other Commitments - Supplemental Cash Flow (Details) - USD ($)
$ in Millions
12 Months Ended
Jul. 03, 2020
Jun. 28, 2019
Jun. 29, 2018
Leases [Abstract]      
Cost of operating leases $ 55 $ 47 $ 49
Cash paid for operating leases 53    
Operating lease assets obtained in exchange for operating lease liabilities $ 57