Restructuring Activities - Summary of Amount of Restructuring Severance Liabilities Related to Program (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Restructuring Cost And Reserve [Line Items] | ||||
| Utilization (cash paid) | $ (4) | $ (3) | $ (18) | $ (7) |
| 2025 Restructuring program | ||||
| Restructuring Cost And Reserve [Line Items] | ||||
| Beginning balance | 0 | |||
| Restructuring reserve | 15 | |||
| Utilization (cash paid) | (2) | 0 | (7) | 0 |
| Ending balance | 8 | 8 | ||
| 2023 Restructuring program | ||||
| Restructuring Cost And Reserve [Line Items] | ||||
| Beginning balance | 18 | |||
| Restructuring reserve | (2) | |||
| Utilization (cash paid) | (2) | $ (3) | (11) | $ (7) |
| Ending balance | $ 5 | $ 5 | ||
| X | ||||||||||
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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- Details
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