PENSION, DEFERRED COMPENSATION AND POST-RETIREMENT BENEFIT PLANS (Details 5) - USD ($) $ in Millions	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan Disclosure
Fair value of plan assets	$ 1,272.2	$ 1,268.5
Level 1
Defined Benefit Plan Disclosure
Fair value of plan assets	273.1	317.7
Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	909.7	798.1
Level 3
Defined Benefit Plan Disclosure
Fair value of plan assets	89.4	152.7
Cash and cash equivalents
Defined Benefit Plan Disclosure
Fair value of plan assets	2.8
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure
Fair value of plan assets	2.8
Short-term investment funds
Defined Benefit Plan Disclosure
Fair value of plan assets	53.1	50.4
Short-term investment funds | Level 1
Defined Benefit Plan Disclosure
Fair value of plan assets		22.4
Short-term investment funds | Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	53.1	28.0
Government and agency securities
Defined Benefit Plan Disclosure
Fair value of plan assets	30.5	39.7
Government and agency securities | Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	30.5	39.7
Equity securities
Defined Benefit Plan Disclosure
Fair value of plan assets	22.8	44.1
Equity securities | Level 1
Defined Benefit Plan Disclosure
Fair value of plan assets	22.8	44.1
Debt securities
Defined Benefit Plan Disclosure
Fair value of plan assets	168.9	173.8
Debt securities | Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	168.9	173.8
Commingled funds
Defined Benefit Plan Disclosure
Fair value of plan assets	832.9	790.1
Commingled funds | Level 1
Defined Benefit Plan Disclosure
Fair value of plan assets	247.5	251.2
Commingled funds | Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	550.4	504.4
Commingled funds | Level 3
Defined Benefit Plan Disclosure
Fair value of plan assets	35.0	34.5
Insurance contracts
Defined Benefit Plan Disclosure
Fair value of plan assets	40.4	51.2
Insurance contracts | Level 3
Defined Benefit Plan Disclosure
Fair value of plan assets	40.4	51.2
Limited partnerships and hedge fund investments
Defined Benefit Plan Disclosure
Fair value of plan assets	120.8	119.2
Limited partnerships and hedge fund investments | Level 2
Defined Benefit Plan Disclosure
Fair value of plan assets	106.8	52.2
Limited partnerships and hedge fund investments | Level 3
Defined Benefit Plan Disclosure
Fair value of plan assets	$ 14.0	$ 67.0