EMPLOYEE BENEFIT PLANS - Pre-tax amounts recognized in AOCI (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	$ (79.9)	$ (57.9)
Prior service (cost) credit	25.7	31.3
Total recognized in AOC(L)/I	(54.2)	(26.6)
U.S. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	(15.5)	(13.6)
Prior service (cost) credit	0.0	0.0
Total recognized in AOC(L)/I	(15.5)	(13.6)
International Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	(64.3)	(45.4)
Prior service (cost) credit	(2.4)	(2.8)
Total recognized in AOC(L)/I	(66.7)	(48.2)
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	(0.1)	1.1
Prior service (cost) credit	28.1	34.1
Total recognized in AOC(L)/I	$ 28.0	$ 35.2