EMPLOYEE BENEFITS (Fair Value of Plan Assets by Category) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Amount of defined benefit pension plan assets	$ 93.4	$ 93.5
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Amount of defined benefit pension plan assets	37.4	33.1
Equities
Defined Benefit Plan Disclosure [Line Items]
Amount of defined benefit pension plan assets	50.6	55.2
Other
Defined Benefit Plan Disclosure [Line Items]
Amount of defined benefit pension plan assets	$ 5.4	$ 5.2