ACCRUED AND OTHER LIABILITIES (Schedule of Other Liabilities) (Details) - USD ($) $ in Millions		Sep. 23, 2020	Jun. 24, 2020
Other liabilities [Line Items]
Deferred payroll taxes	[1]	$ 34.2	$ 12.9
Insurance		33.5	33.7
Deferred franchise fees		11.4	11.6
Unrecognized tax benefits		2.1	2.1
Other		6.2	6.8
Other liabilities		$ 87.4	$ 67.1

[1] Deferred payroll taxes primarily consists of the deferral of the employer portion of certain payroll related taxes as allowed under the CARES Act which will be repaid in two equal installments on December 31, 2021, and December 31, 2022