RETIREMENT BENEFIT OBLIGATIONS - Schedule of Accumulated and Projected Benefit Obligations and Fair Value of Plan Assets for Funded and Unfunded Pension Plans (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 811	$ 873	$ 874
Fair value of plan assets	873	911	886
Domestic Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	208	220	228
Accumulated benefit obligation	208	220
Fair value of plan assets	204	201	200
Domestic Pension Benefits | Funded Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	201	213
Accumulated benefit obligation	201	213
Fair value of plan assets	204	201
Domestic Pension Benefits | Unfunded Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	7	7
Accumulated benefit obligation	7	7
Fair value of plan assets	0	0
Foreign Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	553	598	590
Accumulated benefit obligation	551	598
Fair value of plan assets	669	710	$ 686
Foreign Pension Benefits | Funded Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	503	545
Accumulated benefit obligation	501	545
Fair value of plan assets	669	710
Foreign Pension Benefits | Unfunded Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	50	53
Accumulated benefit obligation	50	53
Fair value of plan assets	$ 0	$ 0