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Revenue Unpaid Incentives (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items] |  |  |  |  |
Paid Economic Incentives | $ 80 | $ 84 | $ 233 | $ 248 |
Unpaid Economic Incentives | $ (181) |  | $ (181) |  | $ (188)

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- Definition Unpaid Economic Incentives + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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