Employee Benefit Plans (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Retirement Benefits [Abstract] | |||
| Employee benefit plan obligation | $ 58 | $ 52 | |
| Aggregate pension liability recorded in balance sheet | 38 | 35 | |
| Pension expense | 3 | 3 | $ 3 |
| Employers contribution plan expense | $ 16 | $ 14 | $ 12 |
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- References No definition available.
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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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