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EMPLOYEE BENEFIT PLANS - Plan Assets and Investment Policy (Details)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Plan Assets and Investment Policy
Proportion of Fair Value (as a percent)	100.00%	100.00%
Expected Rate of Return (as a percent)	4.70%	3.80%
Equity securities
Plan Assets and Investment Policy
Proportion of Fair Value (as a percent)	83.00%	51.00%
Expected Rate of Return (as a percent)	6.00%	6.00%
Debt securities
Plan Assets and Investment Policy
Proportion of Fair Value (as a percent)	17.00%	41.00%
Expected Rate of Return (as a percent)	1.00%	2.00%
Other
Plan Assets and Investment Policy
Proportion of Fair Value (as a percent)		8.00%
Expected Rate of Return (as a percent)		1.00%

X

- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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