LOANS TO FINANCIAL ADVISORS, NET (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Sep. 30, 2024 |
|
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Past due period | 180 days | |
| Related party | ||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Affiliated with the firm as of year-end | $ 1,527 | $ 1,350 |
| No longer affiliated with the firm as of year-end | 15 | 16 |
| Total loans to financial advisors | 1,542 | 1,366 |
| Allowance for credit losses | (42) | (40) |
| Loans, net | 1,500 | 1,326 |
| Accrued interest receivable on loans to financial advisors (included in “Other receivables, net”) | $ 11 | $ 9 |
| Allowance for credit losses as a percent of total loans to financial advisors | 2.72% | 2.93% |
| X | ||||||||||
- Definition Financing Receivable, Currently Affiliated, Before Allowance For Credit Loss No definition available.
|
| X | ||||||||||
- Definition Financing Receivable, No Longer Affiliated, Before Allowance For Credit Loss No definition available.
|
| X | ||||||||||
- Definition Financing Receivable, No Longer Affiliated, Past Due Period No definition available.
|
| X | ||||||||||
- Definition Percentage of allowance for credit loss to total financing receivable outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of accrued interest on financing receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|