Leases - Schedule of Lease Costs and Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Lease costs
Total lease costs	$ 147	$ 145	$ 128
Supplemental cash flows information
Operating cash flows from operating leases	126	119	116
ROU assets obtained in exchange for operating lease liabilities	36	568	137
Sublease income	$ 15	$ 15	$ 15