EMPLOYEE BENEFIT PLANS - Schedule of Items Not Yet Recognized as a Component of Postretirement Expense (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Retirement Income
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 20	$ 213
Prior service benefit	0
Net deferred income tax (assets) liabilities	(5)
Accumulated other comprehensive loss (income)	15
Retirement Health Care
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(14)	$ (14)
Prior service benefit	(4)
Net deferred income tax (assets) liabilities	4
Accumulated other comprehensive loss (income)	$ (14)

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive income (loss) for transition asset (obligation) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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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.

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