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EMPLOYEE BENEFIT PLANS (Retirement Income Plans' Assets Carried at Fair Value) (Details) - Retirement Income - USD ($) $ in Millions | Jun. 30, 2023 | Jun. 30, 2022
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Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | $ 381 | $ 412
Total assets in the fair value hierarchy |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 74 | 0
Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 307 | 412
Cash equivalents — Level 1 | Total assets in the fair value hierarchy |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 74 | 0
Bond funds | Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 289 | 391
International equity funds | Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 15 | 14
Domestic equity funds | Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 0 | 0
Short-term investment fund | Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 1 | 4
Real estate fund | Total common collect trust measured at net asset value |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | $ 2 | $ 3

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