INTANGIBLE ASSETS (Schedule of Identifiable Acquisition Related Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jun. 30, 2017
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 1,615.4	$ 1,479.3
Accumulated Amortization	(384.0)	(309.0)
Total Net	1,231.4	1,170.3
Gross Carrying Amount, Indefinite-lived Intangibles	1,634.9	1,497.6
Intangible Assets, Net	1,250.9	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	16.0	14.8
Intangible Assets, Net	16.0	14.8
Customer relationships
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1,613.7	1,477.7
Accumulated Amortization	(383.5)	(308.6)
Total Net	1,230.2	1,169.1
Finite-Lived Underlying rights [Member]
Schedule Of Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	1.7	1.6
Accumulated Amortization	(0.5)	(0.4)
Total Net	$ 1.2	$ 1.2