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Shareholders' Equity - 2017 Performance Incentive Plan and ESPP (Details) - USD ($) $ in Millions	12 Months Ended
	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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