Proprietary Capital - Accumulated Other Comprehensive Income (Loss) (Details) $ in Millions	12 Months Ended
Sep. 30, 2025 USD ($)
Accumulated Other Comprehensive Income (Loss)
Reclassification to earnings from cash flow hedges in the next twelve months	$ (14)

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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+ Details