INCOME TAXES (Provision (Benefit) For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2022	Jun. 30, 2021		Jun. 24, 2020
Current income tax (benefit) expenses:
Federal	$ 5.8	$ 11.6		$ (32.9)
State	3.7	14.4		4.8
Foreign	(0.3)	0.0		0.0
Total current income tax (benefit) expenses	9.2	26.0		(28.1)
Deferred income tax (benefit) expenses:
Federal	(15.7)	(9.4)		8.8
State	3.7	(3.0)		(0.2)
Foreign	0.4	0.0		0.0
Total deferred income tax (benefit) expenses	(11.6)	(12.4)		8.6
Provision (benefit) for income taxes	$ (2.4)	$ 13.6	[1]	$ (19.5)
Effective tax rate	(2.10%)	9.40%		(398.00%)

[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.