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Shareholders' Equity - 2017 Performance Incentive Plan and ESPP (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 28, 2019 | Jun. 29, 2018 | Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 10 years |  |
Number of shares authorized | 88,700,000 |  |
Employee stock plans | $ 3 | $ 49 | $ 111
Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares to be issued for every one share actually issued in connection with award | 1 |  |
Restricted and performance stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares to be issued for every one share actually issued in connection with award | 1.72 |  |
Employee Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Employee stock plans (in shares) | 2,600,000 | 2,500,000 | 2,300,000
Employee stock plans | $ 102 | $ 119 | $ 105
Minimum | Restricted and performance stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 1 year |  |
Maximum | Restricted and performance stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 4 years |  |

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