INCOME TAXES (Reconciliation Between Reported Provision For Income Taxes And Amount Computed By Statutory Federal Income Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2022	Jun. 30, 2021		Jun. 24, 2020
Income Tax Disclosure [Abstract]
Income tax expense at statutory rate	$ 24.2	$ 30.5		$ 1.0
FICA and other tax credits	(32.9)	(24.7)		(24.8)
State income taxes, net of Federal benefit	6.2	7.8		3.6
Stock based compensation tax shortfall (windfall)	(0.7)	(2.3)		0.5
Other	0.8	2.3		0.2
Provision (benefit) for income taxes	$ (2.4)	$ 13.6	[1]	$ (19.5)
Statutory Federal income tax rate	21.00%	21.00%		21.00%

[1] Fiscal 2021, which ended on June 30, 2021, contained 53 weeks. The impact of the 53rd week in fiscal 2021 resulted in an increase in Total revenues. While certain expenses increased in direct relationship to additional revenues from the 53rd week, other expenses, such as fixed costs, are incurred on a calendar month basis.