ACCRUED AND OTHER LIABILITIES (Schedule of Other Liabilities) (Details) - USD ($) $ in Millions	Sep. 25, 2019		Jun. 27, 2019	Jun. 26, 2019
Other liabilities [Line Items]
Insurance	$ 36.9			$ 36.8
Deferred franchise and development fees (refer to Note 4 - Revenue Recognition)	11.9			14.8
Unrecognized tax benefits	2.2			2.1
Straight-line rent(1)	0.0	[1]		57.2
Landlord contributions(1)	0.0	[1]		32.9
Unfavorable leases(1)	0.0	[1]		2.8
Other	5.8			6.4
Other liabilities	$ 56.8		$ 60.4	$ 153.0

[1] Straight-line rent, Landlord contributions, and Unfavorable leases balances were reclassified to Operating lease assets upon the adoption of ASC 842 during the thirteen week period ended September 25, 2019. Refer to Note 3 - Leases for further details.