Income Taxes - Summary of Changes in Unrecognized Tax Benefits (Details) $ in Millions |
9 Months Ended |
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Jun. 30, 2025
USD ($)
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| Income Tax Disclosure [Abstract] | |
| Balance at beginning of period | $ 65 |
| Decreases related to positions taken in prior years | (5) |
| Increases related to positions taken in the current year | 2 |
| Increases related to positions taken in the prior year | 6 |
| Balance at end of period | $ 68 |
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- References No definition available.
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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