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Other Income (Expense), Net (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Other Income (Expense), Net |  |
External services | $ 3 | $ 5
Interest income | 7 | 3
Gains (losses) on investments | 6 | 4
Miscellaneous | 0 | 2
Other income (expense), net | $ 16 | $ 14

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