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Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Income (Expense), Net
External services	$ 4	$ 5	$ 12	$ 11
Interest income	10	9	30	25
Gains (losses) on investments	2	5	16	15
Other income (expense), net	14	20	55	57
Miscellaneous	$ (2)	$ (1)	$ (3)	$ (6)

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Amount of realized and unrealized gain (loss) on investment.

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