SUPPLEMENTAL FINANCIAL INFORMATION - Restructuring Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Restructuring Reserve [Roll Forward]
Beginning balance	$ 174	$ 147
Cost incurred	659	329	$ 253
Cost paid/settled	(667)	(302)
Ending balance	166	174	147
Separation Costs
Restructuring Reserve [Roll Forward]
Beginning balance	155	121
Cost incurred	202	175
Cost paid/settled	(224)	(141)
Ending balance	133	155	121
Asset-Related Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Cost incurred	101	43
Cost paid/settled	(101)	(43)
Ending balance	0	0	0
Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	19	26
Cost incurred	355	111
Cost paid/settled	(342)	(118)
Ending balance	$ 32	$ 19	$ 26