RETIREMENT BENEFIT OBLIGATIONS - Schedule of Change in Projected Benefit Obligation, Change in Fair Value of Plan Assets and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	$ 873	$ 874
Service cost	1	1	$ 1
Interest cost	41	44	49
Benefits paid	(69)	(73)
Settlements	(3)	(6)
Actuarial (gain) loss	(12)	(12)
Foreign exchange rate changes	(20)	45
Projected benefit obligation, end of the year	811	873	874
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	911	886
Actual return on plan assets	39	24
Employer contributions	14	20
Benefits paid	(64)	(66)
Settlements	(3)	(6)
Foreign exchange rate changes	(24)	53
Fair value of plan assets, end of the year	873	911	886
Funded status	$ 62	$ 38
Defined benefit plan, net periodic benefit cost (credit), interest cost, statement of income or comprehensive income [extensible enumeration]	Other, net	Other, net
Postretirement Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	$ 55	$ 56
Service cost	0	0	0
Interest cost	2	3	3
Benefits paid	(5)	(7)
Settlements	0	0
Actuarial (gain) loss	(2)	2
Foreign exchange rate changes	0	1
Projected benefit obligation, end of the year	50	55	56
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Benefits paid	0	0
Settlements	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, end of the year	0	0	0
Funded status	(50)	(55)
U.S.
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	220	228
Service cost	0	0	0
Interest cost	10	12	13
Benefits paid	(22)	(26)
Settlements	0	0
Actuarial (gain) loss	0	6
Foreign exchange rate changes	0	0
Projected benefit obligation, end of the year	208	220	228
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	201	200
Actual return on plan assets	15	10
Employer contributions	10	17
Benefits paid	(22)	(26)
Settlements	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, end of the year	204	201	200
Funded status	(4)	(19)
Foreign Pension Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	598	590
Service cost	1	1	1
Interest cost	29	29	33
Benefits paid	(42)	(40)
Settlements	(3)	(6)
Actuarial (gain) loss	(10)	(20)
Foreign exchange rate changes	(20)	44
Projected benefit obligation, end of the year	553	598	590
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	710	686
Actual return on plan assets	24	14
Employer contributions	4	3
Benefits paid	(42)	(40)
Settlements	(3)	(6)
Foreign exchange rate changes	(24)	53
Fair value of plan assets, end of the year	669	710	$ 686
Funded status	$ 116	$ 112