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Summary of Significant Accounting Policies Cash, Cash Equivalents, and Restricted Cash (Tables)

6 Months Ended

Mar. 31, 2025

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 March 31, 2025						At September 30, 2024
Cash and cash equivalents			$	502					$	502
Restricted cash of variable interest entity			25						—
Restricted cash and cash equivalents included in Other long-term assets			20						21
Total cash, cash equivalents, and restricted cash			$	547					$	523

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Tabular disclosure of the components of cash and cash equivalents.

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