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Summary of Significant Accounting Policies Cash, Cash Equivalents, and Restricted Cash (Tables) | 3 Months Ended
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Dec. 31, 2024
Cash and Cash Equivalents [Abstract] |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported on the Consolidated Balance Sheets and Consolidated Statements of Cash Flows:
Cash, Cash Equivalents, and Restricted Cash (in millions)
| At December 31, 2024 |  | At September 30, 2024
Cash and cash equivalents | $ | 507 |  |  | $ | 502 |
Restricted cash of variable interest entity | 25 |  |  | — |
Restricted cash and cash equivalents included in Other long-term assets | 21 |  |  | 21 |
Total cash, cash equivalents, and restricted cash | $ | 553 |  |  | $ | 523 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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