INTANGIBLE ASSETS (Schedule of Identifiable Acquisition Related Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Jun. 30, 2017
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 1,645.5	$ 1,479.3
Accumulated Amortization	(361.6)	(309.0)
Total Net	1,283.9	1,170.3
Gross Carrying Amount, Indefinite-lived Intangibles	1,664.4	1,497.6
Intangible Assets, Net	1,302.8	1,188.6
Certifications [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount, Indefinite-lived Intangibles	3.5	3.5
Intangible Assets, Net	3.5	3.5
Indefinite-Lived Underlying Rights [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount, Indefinite-lived Intangibles	15.4	14.8
Intangible Assets, Net	15.4	14.8
Customer relationships [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1,643.9	1,477.7
Accumulated Amortization	(361.1)	(308.6)
Total Net	1,282.8	1,169.1
Finite-Lived Underlying rights [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1.6	1.6
Accumulated Amortization	(0.5)	(0.4)
Total Net	$ 1.1	$ 1.2