FAIR VALUE MEASUREMENTS (Assets Measured At Fair Value On Non-Recurring Basis) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 24, 2020 restaurant	Jun. 24, 2020 USD ($) restaurant	Jun. 26, 2019 USD ($) restaurant	Jun. 27, 2018 USD ($)
Fair Value Disclosures [Line Items]
Impairment charges on restaurants continuing to operate				$ 3.7
Asset Impairment Charges		$ 19.1	$ 10.8	$ 10.9
Chili's Restaurants [Member]
Fair Value Disclosures [Line Items]
Number of underperforming restaurants | restaurant	18	25	11
Maggiano's Restaurants [Member]
Fair Value Disclosures [Line Items]
Number of underperforming restaurants | restaurant	3	3
Underperforming Restaurants [Member]
Fair Value Disclosures [Line Items]
Carrying value of impaired long lived assets		$ 16.7	$ 10.3
Carrying value of reacquired franchise rights		0.2	0.5
Carrying value of impaired operating lease assets		18.5	0.0
Carrying value of impaired finance lease assets		0.1	0.0
Total carrying value of impaired assets of underperforming restaurants		35.5	10.8
Impairment charges on restaurants continuing to operate		16.7	10.3
Impairment of Intangible Assets (Excluding Goodwill)		0.2	0.5
Operating Lease, Impairment Loss		2.1	0.0
Finance Lease, Impairment Loss		0.1	0.0
Asset Impairment Charges		19.1	10.8
Closed Restaurants [Member]
Fair Value Disclosures [Line Items]
Carrying value of impaired operating lease assets		6.4	0.0
Carrying value of impaired finance lease assets		5.8	0.0
Total carrying value of impaired assets of closed restaurants		12.2	0.0
Operating Lease, Impairment Loss		1.8	0.0
Finance Lease, Impairment Loss		1.4	0.0
Impairment of long lived assets to be disposed of		3.2	0.0
Liquor Licenses [Member]
Fair Value Disclosures [Line Items]
Impairment of liquor licenses		$ 0.0	$ 0.0