DEBT - Government Refundable Advances (Details) - USD ($) $ in Millions	Sep. 30, 2026	Sep. 30, 2025
Government Refundable Advances
Debt Instrument [Line Items]
Government refundable advances	$ 8	$ 12

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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