v3.25.2
FAIR VALUE, Recurring and Nonrecurring Fair Value Measurements (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Sep. 30, 2024
Assets at fair value on a recurring basis:    
Available-for-sale securities, fair value $ 7,165 $ 8,260
Total derivative assets 334 349
Netting adjustments (261) (246)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 73 103
Liabilities at fair value on a recurring basis:    
Derivative liabilities 341 347
Netting adjustments (131) (123)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 210 224
Recurring    
Assets at fair value on a recurring basis:    
Total debt securities 1,308 1,441
Equity securities 13 16
Brokered certificates of deposit 26 20
Other 2 3
Total trading assets 1,349 1,480
Available-for-sale securities, fair value 7,165 8,260
Netting adjustments (261) (246)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 73 103
Total all other investments 205 200
Other assets - client-owned fractional shares 155 133
Total assets at fair value on a recurring basis 9,057 10,278
Other investments - private equity - measured at net asset value (“NAV”) 110 102
Liabilities at fair value on a recurring basis:    
Total debt securities 796 878
Equity securities 124 98
Total trading liabilities 920 976
Netting adjustments (131) (123)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 210 224
Other payables - repurchase liabilities related to client-owned fractional shares 155 133
Total liabilities at fair value on a recurring basis 1,285 1,333
Recurring | Interest rate    
Assets at fair value on a recurring basis:    
Netting adjustments (261) (246)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 72 92
Liabilities at fair value on a recurring basis:    
Netting adjustments (131) (123)
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 207 223
Recurring | Foreign exchange    
Assets at fair value on a recurring basis:    
Net amounts presented on the Condensed Consolidated Statements of Financial Condition   7
Liabilities at fair value on a recurring basis:    
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 3 1
Recurring | Other    
Assets at fair value on a recurring basis:    
Net amounts presented on the Condensed Consolidated Statements of Financial Condition 1 4
Recurring | Municipal and provincial obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 2 5
Recurring | Corporate obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 616 598
Recurring | Government and agency obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 153 249
Recurring | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Liabilities at fair value on a recurring basis:    
Total debt securities 25 26
Recurring | Municipal and provincial obligations    
Assets at fair value on a recurring basis:    
Total debt securities 308 306
Recurring | Corporate obligations    
Assets at fair value on a recurring basis:    
Total debt securities 643 642
Recurring | Government and agency obligations    
Assets at fair value on a recurring basis:    
Total debt securities 147 193
Total all other investments 91 91
Recurring | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Assets at fair value on a recurring basis:    
Total debt securities 171 205
Recurring | Non-agency CMOs and ABS    
Assets at fair value on a recurring basis:    
Total debt securities 39 95
Recurring | Other    
Assets at fair value on a recurring basis:    
Total all other investments 114 109
Recurring | Assets at Fair Value on a Recurring Basis, Before Investments Measured at NAV    
Assets at fair value on a recurring basis:    
Total assets at fair value on a recurring basis 8,947 10,176
Recurring | Level 1    
Assets at fair value on a recurring basis:    
Total debt securities 53 63
Equity securities 8 14
Brokered certificates of deposit 0 0
Other 0 0
Total trading assets 61 77
Available-for-sale securities, fair value 432 704
Total derivative assets 11 3
Total all other investments 197 192
Other assets - client-owned fractional shares 155 133
Total assets at fair value on a recurring basis 856 1,109
Liabilities at fair value on a recurring basis:    
Total debt securities 155 248
Equity securities 124 97
Total trading liabilities 279 345
Derivative liabilities 11 3
Other payables - repurchase liabilities related to client-owned fractional shares 155 133
Total liabilities at fair value on a recurring basis 445 481
Recurring | Level 1 | Interest rate    
Assets at fair value on a recurring basis:    
Total derivative assets 11 3
Liabilities at fair value on a recurring basis:    
Derivative liabilities 11 3
Recurring | Level 1 | Foreign exchange    
Assets at fair value on a recurring basis:    
Total derivative assets   0
Liabilities at fair value on a recurring basis:    
Derivative liabilities 0 0
Recurring | Level 1 | Other    
Assets at fair value on a recurring basis:    
Total derivative assets 0 0
Recurring | Level 1 | Municipal and provincial obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 2 5
Recurring | Level 1 | Corporate obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 1 | Government and agency obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 153 243
Recurring | Level 1 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 1 | Municipal and provincial obligations    
Assets at fair value on a recurring basis:    
Total debt securities 10 2
Recurring | Level 1 | Corporate obligations    
Assets at fair value on a recurring basis:    
Total debt securities 15 12
Recurring | Level 1 | Government and agency obligations    
Assets at fair value on a recurring basis:    
Total debt securities 28 49
Total all other investments 91 91
Recurring | Level 1 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 1 | Non-agency CMOs and ABS    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 1 | Other    
Assets at fair value on a recurring basis:    
Total all other investments 106 101
Recurring | Level 2    
Assets at fair value on a recurring basis:    
Total debt securities 1,255 1,378
Equity securities 5 2
Brokered certificates of deposit 26 20
Other 0 0
Total trading assets 1,286 1,400
Available-for-sale securities, fair value 6,733 7,556
Total derivative assets 322 342
Total all other investments 1 1
Other assets - client-owned fractional shares 0 0
Total assets at fair value on a recurring basis 8,342 9,299
Liabilities at fair value on a recurring basis:    
Total debt securities 641 630
Equity securities 0 1
Total trading liabilities 641 631
Derivative liabilities 330 344
Other payables - repurchase liabilities related to client-owned fractional shares 0 0
Total liabilities at fair value on a recurring basis 971 975
Recurring | Level 2 | Interest rate    
Assets at fair value on a recurring basis:    
Total derivative assets 322 335
Liabilities at fair value on a recurring basis:    
Derivative liabilities 327 343
Recurring | Level 2 | Foreign exchange    
Assets at fair value on a recurring basis:    
Total derivative assets   7
Liabilities at fair value on a recurring basis:    
Derivative liabilities 3 1
Recurring | Level 2 | Other    
Assets at fair value on a recurring basis:    
Total derivative assets 0 0
Recurring | Level 2 | Municipal and provincial obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 2 | Corporate obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 616 598
Recurring | Level 2 | Government and agency obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 6
Recurring | Level 2 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Liabilities at fair value on a recurring basis:    
Total debt securities 25 26
Recurring | Level 2 | Municipal and provincial obligations    
Assets at fair value on a recurring basis:    
Total debt securities 298 304
Recurring | Level 2 | Corporate obligations    
Assets at fair value on a recurring basis:    
Total debt securities 628 630
Recurring | Level 2 | Government and agency obligations    
Assets at fair value on a recurring basis:    
Total debt securities 119 144
Total all other investments 0 0
Recurring | Level 2 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Assets at fair value on a recurring basis:    
Total debt securities 171 205
Recurring | Level 2 | Non-agency CMOs and ABS    
Assets at fair value on a recurring basis:    
Total debt securities 39 95
Recurring | Level 2 | Other    
Assets at fair value on a recurring basis:    
Total all other investments 1 1
Recurring | Level 3    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Equity securities 0 0
Brokered certificates of deposit 0 0
Other 2 3
Total trading assets 2 3
Available-for-sale securities, fair value 0 0
Total derivative assets 1 4
Total all other investments 7 7
Other assets - client-owned fractional shares 0 0
Total assets at fair value on a recurring basis 10 14
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Equity securities 0 0
Total trading liabilities 0 0
Derivative liabilities 0 0
Other payables - repurchase liabilities related to client-owned fractional shares 0 0
Total liabilities at fair value on a recurring basis 0 0
Recurring | Level 3 | Interest rate    
Assets at fair value on a recurring basis:    
Total derivative assets 0 0
Liabilities at fair value on a recurring basis:    
Derivative liabilities 0 0
Recurring | Level 3 | Foreign exchange    
Assets at fair value on a recurring basis:    
Total derivative assets   0
Liabilities at fair value on a recurring basis:    
Derivative liabilities 0 0
Recurring | Level 3 | Other    
Assets at fair value on a recurring basis:    
Total derivative assets 1 4
Recurring | Level 3 | Municipal and provincial obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Corporate obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Government and agency obligations    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Liabilities at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Municipal and provincial obligations    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Corporate obligations    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Government and agency obligations    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Total all other investments 0 0
Recurring | Level 3 | Agency mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMOs”) and asset-backed securities (“ABS”)    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Non-agency CMOs and ABS    
Assets at fair value on a recurring basis:    
Total debt securities 0 0
Recurring | Level 3 | Other    
Assets at fair value on a recurring basis:    
Total all other investments $ 7 $ 7