Leases - Schedule of Lease Costs and Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Lease costs
Total lease costs	$ 146	$ 146	$ 147
Supplemental cash flows information
Operating cash flows from operating leases	82	125	126
ROU assets obtained in exchange for operating lease liabilities	147	19	36
Sublease income	$ 5	$ 15	$ 15

Amount of lease cost recognized by lessee for lease contract.

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- References

No definition available.

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Topic 842
-SubTopic 20
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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-Topic 230
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- Definition

Amount of sublease income excluding finance and operating lease expense.

+ References

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- References

No definition available.

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