Employee Benefit Plans - Additional Information (Details) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
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Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
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Dec. 31, 2024
Employee
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
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| Defined Benefit Plan Disclosure [Line Items] | |||||
| Number of employees terminated in restructuring activities | Employee | 40 | ||||
| Curtailment loss | $ 1 | ||||
| Settlement gain | $ 2 | $ 2 | |||
| Total net periodic benefit costs | 30 | ||||
| Service cost | 28 | ||||
| Other net periodic benefit (loss) income | 5 | $ (1) | 3 | $ (4) | |
| Foreign Pension Plans, Defined Benefit [Member] | |||||
| Defined Benefit Plan Disclosure [Line Items] | |||||
| Actual contributions to benefit plans in period | 5 | ||||
| Estimated future contributions in current fiscal year | 1 | 1 | |||
| United States Pension Plans of US Entity, Defined Benefit [Member] | |||||
| Defined Benefit Plan Disclosure [Line Items] | |||||
| Actual contributions to benefit plans in period | 5 | ||||
| Estimated future contributions in current fiscal year | $ 1 | $ 1 | |||
| X | ||||||||||
- Definition Amount of net gain recognized in net periodic benefit cost due to settlements, curtailments and other expense. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. No definition available.
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| X | ||||||||||
- Definition Other defined benefit plan net periodic benefit income expense. No definition available.
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| X | ||||||||||
- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition The number of positions eliminated during the period as a result of restructuring activities. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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