EMPLOYEE BENEFIT PLANS (Summarized Information for Defined Benefit Retirement Income and Healthcare Plans) (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Retirement Income
Change in plan assets:
Employer contributions	$ 14	$ 13	$ 63
Retirement Income \| Retirement Income
Change in benefit obligations:
Benefit obligation as of beginning of year	628	604
Service cost	2	1	1
Interest cost	15	20	23
Actuarial loss (gain)	12	43
Plan amendments	0	0
Translation and other adjustments	8	(1)
Plan settlement	(12)	0
Benefits paid	(32)	(39)
Benefit obligation as of end of year	621	628	604
Change in plan assets:
Fair value of assets as of beginning of year	507	485
Actual return on plan assets	26	48
Employer contributions	15	13
Benefits paid	(44)	(39)
Translation and other adjustments	2	0
Fair value of plan assets as of end of year	506	507	485
Accrued benefit cost, net funded status	(115)	(121)
Amount recognized in the balance sheets consists of:
Pension benefit assets	61	52
Current accrued benefit liability	(12)	(11)
Non-current accrued benefit liability	(164)	(162)
Accrued benefit cost, net	(115)	(121)
Retirement Health Care \| Retirement Health Care
Change in benefit obligations:
Benefit obligation as of beginning of year	36	34
Service cost	0	0	0
Interest cost	1	1	2
Actuarial loss (gain)	0	4
Plan amendments	0	0
Translation and other adjustments	1	0
Plan settlement	0	0
Benefits paid	(2)	(3)
Benefit obligation as of end of year	36	36	34
Change in plan assets:
Fair value of assets as of beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	2	3
Benefits paid	(2)	(3)
Translation and other adjustments	0	0
Fair value of plan assets as of end of year	0	0	$ 0
Accrued benefit cost, net funded status	(36)	(36)
Amount recognized in the balance sheets consists of:
Pension benefit assets	0	0
Current accrued benefit liability	(2)	(2)
Non-current accrued benefit liability	(34)	(34)
Accrued benefit cost, net	$ (36)	$ (36)

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

Name:	us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.