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Debt and Other Financing Activities - Schedule of Obligations Confirmed and Paid (Details) - Supply Chain Finance Program [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2026	Mar. 31, 2026
Debt Instrument [Line Items]
Confirmed obligations outstanding at beginning of period	$ 4	$ 0
Invoices confirmed during the period	5	10
Confirmed invoices paid during the period	(4)	(5)
Confirmed obligations outstanding at end of period	$ 5	$ 5

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Confirmed invoices.

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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.

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