PENSION AND POST-RETIREMENT BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Pension Plans | U.S.
Components of net periodic benefit cost:
Service cost	$ 8	$ 9	$ 26	$ 27
Interest cost	13	12	38	35
Expected return on plan assets	(13)	(14)	(38)	(41)
Amortization of:
Actuarial loss (gain)	5	1	15	3
Prior service cost	0	0	0	0
Special termination benefits	0	0	0	0
Net periodic benefit cost	13	8	41	24
Pension Plans | International
Components of net periodic benefit cost:
Service cost	6	7	20	20
Interest cost	5	5	14	14
Expected return on plan assets	(6)	(7)	(19)	(19)
Amortization of:
Actuarial loss (gain)	(1)	(2)	(4)	(6)
Prior service cost	0	(1)	0	(1)
Special termination benefits	3	0	4	0
Net periodic benefit cost	7	2	15	8
Other than Pension Plans Post-retirement
Components of net periodic benefit cost:
Service cost	1	0	1	1
Interest cost	1	2	5	6
Expected return on plan assets	0	0	0	0
Amortization of:
Actuarial loss (gain)	0	0	0	0
Prior service cost	(1)	(1)	(4)	(1)
Special termination benefits	0	0	0	0
Net periodic benefit cost	$ 1	$ 1	$ 2	$ 6