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EMPLOYEE BENEFIT PLANS - Plan Assets and Investment Policy (Details) | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
EMPLOYEE BENEFIT PLANS |  |
Expected Rate of Return (as a percent) | 5.80% | 4.20%
Combined |  |
EMPLOYEE BENEFIT PLANS |  |
Proportion of Fair Value (as a percent) | 100.00% | 100.00%
Expected Rate of Return (as a percent) | 5.80% | 4.20%
Equity securities |  |
EMPLOYEE BENEFIT PLANS |  |
Proportion of Fair Value (as a percent) | 86.00% | 85.00%
Expected Rate of Return (as a percent) | 6.60% | 4.90%
Debt securities |  |
EMPLOYEE BENEFIT PLANS |  |
Proportion of Fair Value (as a percent) | 13.00% | 14.00%
Expected Rate of Return (as a percent) | 0.80% | 0.80%
Cash |  |
EMPLOYEE BENEFIT PLANS |  |
Proportion of Fair Value (as a percent) | 1.00% | 1.00%
Expected Rate of Return (as a percent) | 0.40% | 0.40%

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- 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/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Percentage of investment to total investment within defined benefit plan asset category. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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