Income Taxes Income taxes - Reconciliation Items from U.S. statutory income tax rate to the effective tax rate (Details)	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, settlement	(7.50%)	(33.40%)	0.00%
Effective Income Tax Rate Reconciliation Tax On Global Intangible Low Taxed Income	7.90%	7.40%	0.00%