EMPLOYEE BENEFIT PLANS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Domestic Defined Contribution Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Aggregate cost of the defined contribution plans	$ 49	$ 47	$ 47
International Defined Contribution Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Aggregate cost of the defined contribution plans	4	3	3
Retirement Income Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discretionary contributions	63	21	31
Retirement Income Plans [Member] \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discretionary contributions	63	22
Future amortization of gain (loss)	(9)
Accumulated benefit obligation	603	592	$ 632
Retirement Health Care [Member] \| Retirement Health Care Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discretionary contributions	3	$ 4
Future amortization of gain (loss)	$ 3

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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Amount of cost for defined contribution plan.

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