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EMPLOYEE BENEFIT PLANS (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net periodic benefit cost (benefit) | $ 0 | $ 0 | $ (1) | $ (1)
Retirement Income Plans [Member] | UNITED STATES |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Discretionary contributions | $ 6 | $ 7 | $ 10 | $ 10

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