Fair Value - Schedule of Borrowings (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair value	$ 7,353	$ 7,017
Carrying value	$ 7,199	$ 7,197

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Balance Type:	credit
Period Type:	instant