PENSION AND POST-RETIREMENT BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Pension Plans | U.S.
Components of net periodic benefit cost:
Service cost	$ 9	$ 10	$ 27	$ 28
Interest cost	12	10	35	30
Expected return on plan assets	(14)	(14)	(41)	(42)
Amortization of:
Actuarial loss (gain)	1	0	3	2
Prior service cost	0	0	0	0
Special termination benefits	0	0	0	0
Net periodic benefit cost	8	6	24	18
Pension Plans | International
Components of net periodic benefit cost:
Service cost	7	7	20	20
Interest cost	5	3	14	10
Expected return on plan assets	(7)	(5)	(19)	(13)
Amortization of:
Actuarial loss (gain)	(2)	0	(6)	(2)
Prior service cost	(1)	0	(1)	0
Special termination benefits	0	1	0	1
Net periodic benefit cost	2	6	8	16
Other than Pension Plans Post-retirement
Components of net periodic benefit cost:
Service cost	0	0	1	0
Interest cost	2	2	6	6
Expected return on plan assets	0	0	0	0
Amortization of:
Actuarial loss (gain)	0	0	0	0
Prior service cost	(1)	0	(1)	0
Special termination benefits	0	0	0	0
Net periodic benefit cost	$ 1	$ 2	$ 6	$ 6