Share-based Compensation (Narrative) (Details) - $ / shares	6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Stock Options
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Weighted-average grant-date fair value of awards granted (USD per share)	$ 3.83	$ 9.77
Service-based Restricted Stock Unit Awards (RSU)
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Weighted-average grant-date fair value of awards granted (USD per share)	21.45	50.85
Performance-based Restricted Stock Unit Awards (PRSU)
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Weighted-average grant-date fair value of awards granted (USD per share)	$ 21.65	$ 50.89