SHAREHOLDERS' DEFICIT (Share Repurchases) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Mar. 25, 2020	Dec. 25, 2019	Sep. 25, 2019	Mar. 27, 2019	Dec. 26, 2018	Sep. 26, 2018	Mar. 25, 2020	Mar. 27, 2019	Aug. 13, 2018
Share Repurchases [Abstract]
Number of shares repurchased							0.8	3.6
Amount paid for shares repurchased	$ 21.0	$ 0.0	$ 11.3	$ 0.1	$ 62.1	$ 105.5	$ 32.3	$ 167.7
Remaining amount of share repurchase authorizations available	$ 166.8						$ 166.8
Increase In Share Repurchase Program								$ 300.0
Share repurchase program, total authorized amount									$ 4,900.0