REVENUE RECOGNITION (Deferred Gift Card Revenues) (Details) $ in Millions	6 Months Ended
	Dec. 23, 2020 USD ($)
Deferred Gift Card Liability Rollforward [Roll Forward]
Gift Card Liability at June 24, 2020	$ 109.9
Gift Card Liability at September 23, 2020	129.9
Gift card sales
Deferred Gift Card Liability Rollforward [Roll Forward]
Increase in Gift card liability	67.6
Gift card redemptions
Deferred Gift Card Liability Rollforward [Roll Forward]
Gift card redemptions recognized to Company sales	(41.7)
Gift card breakage
Deferred Gift Card Liability Rollforward [Roll Forward]
Gift card breakage recognized to Franchise and other revenues	(4.9)
Gift card other
Deferred Gift Card Liability Rollforward [Roll Forward]
Increase in Gift card liability	$ (1.0)