Leases - Summary of Lease Costs and Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Lease costs
Total lease costs	$ 145	$ 128	$ 126
Supplemental cash flows information
Operating cash flows from operating leases	119	116	134
ROU assets obtained in exchange for operating lease liabilities	568	137	49
Sublease income	$ 15	$ 15	30
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Supplemental cash flows information
Sublease income			$ 15