BANK LOANS, NET, Credit Quality of Held for Investment Loan Portfolio (Details) - USD ($)
$ in Millions |
9 Months Ended |
12 Months Ended |
Jun. 30, 2025 |
Sep. 30, 2024 |
| SBL |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
$ 17
|
$ 133
|
| Fiscal year before current fiscal year |
118
|
30
|
| Fiscal year two years before current fiscal year |
124
|
15
|
| Fiscal year three years before current fiscal year |
20
|
76
|
| Fiscal year four years before current fiscal year |
62
|
27
|
| Prior |
69
|
52
|
| Revolving loans |
18,087
|
15,900
|
| Total loans held for investment |
18,497
|
16,233
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
0
|
| Gross charge-offs, prior |
0
|
0
|
| Gross charge-offs, revolving loans |
0
|
0
|
| Gross charge-offs, total |
0
|
0
|
| SBL | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
17
|
131
|
| Fiscal year before current fiscal year |
118
|
30
|
| Fiscal year two years before current fiscal year |
124
|
15
|
| Fiscal year three years before current fiscal year |
20
|
76
|
| Fiscal year four years before current fiscal year |
62
|
27
|
| Prior |
69
|
52
|
| Revolving loans |
18,087
|
15,900
|
| Total loans held for investment |
18,497
|
16,231
|
| SBL | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| SBL | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
2
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
2
|
| SBL | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| C&I loans |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
574
|
616
|
| Fiscal year before current fiscal year |
661
|
458
|
| Fiscal year two years before current fiscal year |
378
|
1,179
|
| Fiscal year three years before current fiscal year |
1,123
|
716
|
| Fiscal year four years before current fiscal year |
799
|
686
|
| Prior |
3,852
|
3,318
|
| Revolving loans |
3,367
|
2,980
|
| Total loans held for investment |
10,754
|
9,953
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
3
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
4
|
| Gross charge-offs, prior |
17
|
38
|
| Gross charge-offs, revolving loans |
0
|
0
|
| Gross charge-offs, total |
17
|
45
|
| C&I loans | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
574
|
616
|
| Fiscal year before current fiscal year |
660
|
454
|
| Fiscal year two years before current fiscal year |
361
|
1,178
|
| Fiscal year three years before current fiscal year |
1,122
|
716
|
| Fiscal year four years before current fiscal year |
799
|
586
|
| Prior |
3,745
|
3,287
|
| Revolving loans |
3,340
|
2,966
|
| Total loans held for investment |
10,601
|
9,803
|
| C&I loans | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
4
|
| Fiscal year two years before current fiscal year |
17
|
1
|
| Fiscal year three years before current fiscal year |
1
|
0
|
| Fiscal year four years before current fiscal year |
0
|
54
|
| Prior |
12
|
1
|
| Revolving loans |
9
|
0
|
| Total loans held for investment |
39
|
60
|
| C&I loans | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
1
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
46
|
| Prior |
95
|
25
|
| Revolving loans |
18
|
12
|
| Total loans held for investment |
114
|
83
|
| C&I loans | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
5
|
| Revolving loans |
0
|
2
|
| Total loans held for investment |
0
|
7
|
| CRE loans |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
891
|
873
|
| Fiscal year before current fiscal year |
803
|
1,244
|
| Fiscal year two years before current fiscal year |
1,201
|
2,167
|
| Fiscal year three years before current fiscal year |
1,973
|
935
|
| Fiscal year four years before current fiscal year |
698
|
729
|
| Prior |
1,660
|
1,216
|
| Revolving loans |
551
|
451
|
| Total loans held for investment |
7,777
|
7,615
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
0
|
| Gross charge-offs, prior |
6
|
21
|
| Gross charge-offs, revolving loans |
2
|
0
|
| Gross charge-offs, total |
8
|
21
|
| CRE loans | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
891
|
873
|
| Fiscal year before current fiscal year |
803
|
1,156
|
| Fiscal year two years before current fiscal year |
1,118
|
2,082
|
| Fiscal year three years before current fiscal year |
1,885
|
930
|
| Fiscal year four years before current fiscal year |
698
|
706
|
| Prior |
1,575
|
1,111
|
| Revolving loans |
551
|
435
|
| Total loans held for investment |
7,521
|
7,293
|
| CRE loans | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
30
|
| Fiscal year two years before current fiscal year |
25
|
76
|
| Fiscal year three years before current fiscal year |
79
|
0
|
| Fiscal year four years before current fiscal year |
0
|
14
|
| Prior |
1
|
16
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
105
|
136
|
| CRE loans | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
58
|
| Fiscal year two years before current fiscal year |
58
|
9
|
| Fiscal year three years before current fiscal year |
9
|
5
|
| Fiscal year four years before current fiscal year |
0
|
9
|
| Prior |
61
|
89
|
| Revolving loans |
0
|
16
|
| Total loans held for investment |
128
|
186
|
| CRE loans | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
23
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
23
|
0
|
| REIT loans |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
69
|
172
|
| Fiscal year before current fiscal year |
177
|
269
|
| Fiscal year two years before current fiscal year |
204
|
167
|
| Fiscal year three years before current fiscal year |
106
|
135
|
| Fiscal year four years before current fiscal year |
227
|
95
|
| Prior |
290
|
195
|
| Revolving loans |
662
|
683
|
| Total loans held for investment |
1,735
|
1,716
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
0
|
| Gross charge-offs, prior |
0
|
0
|
| Gross charge-offs, revolving loans |
0
|
0
|
| Gross charge-offs, total |
0
|
0
|
| REIT loans | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
69
|
172
|
| Fiscal year before current fiscal year |
177
|
250
|
| Fiscal year two years before current fiscal year |
185
|
167
|
| Fiscal year three years before current fiscal year |
106
|
135
|
| Fiscal year four years before current fiscal year |
111
|
55
|
| Prior |
290
|
195
|
| Revolving loans |
662
|
564
|
| Total loans held for investment |
1,600
|
1,538
|
| REIT loans | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| REIT loans | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
19
|
| Fiscal year two years before current fiscal year |
19
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
116
|
40
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
119
|
| Total loans held for investment |
135
|
178
|
| REIT loans | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| Residential mortgage loans |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
1,252
|
1,373
|
| Fiscal year before current fiscal year |
1,246
|
1,637
|
| Fiscal year two years before current fiscal year |
1,509
|
2,734
|
| Fiscal year three years before current fiscal year |
2,585
|
1,494
|
| Fiscal year four years before current fiscal year |
1,413
|
858
|
| Prior |
1,932
|
1,277
|
| Revolving loans |
39
|
39
|
| Total loans held for investment |
9,976
|
9,412
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
0
|
| Gross charge-offs, prior |
0
|
0
|
| Gross charge-offs, revolving loans |
0
|
0
|
| Gross charge-offs, total |
0
|
0
|
| Residential mortgage loans | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
1,252
|
1,373
|
| Fiscal year before current fiscal year |
1,246
|
1,637
|
| Fiscal year two years before current fiscal year |
1,509
|
2,725
|
| Fiscal year three years before current fiscal year |
2,576
|
1,493
|
| Fiscal year four years before current fiscal year |
1,412
|
858
|
| Prior |
1,914
|
1,260
|
| Revolving loans |
39
|
39
|
| Total loans held for investment |
9,948
|
9,385
|
| Residential mortgage loans | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
1
|
| Fiscal year three years before current fiscal year |
1
|
1
|
| Fiscal year four years before current fiscal year |
1
|
0
|
| Prior |
6
|
5
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
8
|
7
|
| Residential mortgage loans | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
8
|
| Fiscal year three years before current fiscal year |
8
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
12
|
12
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
20
|
20
|
| Residential mortgage loans | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| Tax-exempt loans |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
57
|
62
|
| Fiscal year before current fiscal year |
62
|
57
|
| Fiscal year two years before current fiscal year |
57
|
248
|
| Fiscal year three years before current fiscal year |
234
|
153
|
| Fiscal year four years before current fiscal year |
145
|
52
|
| Prior |
756
|
766
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
1,311
|
1,338
|
| Gross charge-offs, current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year two years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year three years before current fiscal year |
0
|
0
|
| Gross charge-offs, fiscal year four years before current fiscal year |
0
|
0
|
| Gross charge-offs, prior |
0
|
0
|
| Gross charge-offs, revolving loans |
0
|
0
|
| Gross charge-offs, total |
0
|
0
|
| Tax-exempt loans | Pass |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
57
|
62
|
| Fiscal year before current fiscal year |
62
|
57
|
| Fiscal year two years before current fiscal year |
57
|
248
|
| Fiscal year three years before current fiscal year |
234
|
153
|
| Fiscal year four years before current fiscal year |
145
|
52
|
| Prior |
756
|
766
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
1,311
|
1,338
|
| Tax-exempt loans | Special mention |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| Tax-exempt loans | Substandard |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
0
|
0
|
| Tax-exempt loans | Doubtful |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| Current fiscal year |
0
|
0
|
| Fiscal year before current fiscal year |
0
|
0
|
| Fiscal year two years before current fiscal year |
0
|
0
|
| Fiscal year three years before current fiscal year |
0
|
0
|
| Fiscal year four years before current fiscal year |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans |
0
|
0
|
| Total loans held for investment |
$ 0
|
$ 0
|