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Loans and Leases - Loans Held for Investment by Credit Quality Indicator (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Amortized Cost Basis by Closing Year |  |  |  |  |
Total | $ 62,661 |  | $ 62,661 |  | $ 68,272
Year to date gross charge-offs |  |  |  |  |
Total | (92) | $ (260) | (356) | $ (705) |
Loans and leases held for investment: | Multi-family |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 16 |  | 16 |  | 19
Originated year two | 15 |  | 15 |  | 837
Originated year three | 754 |  | 754 |  | 7,929
Originated year four | 7,756 |  | 7,756 |  | 7,776
Originated year five | 7,592 |  | 7,592 |  | 7,649
Prior year | 14,195 |  | 14,195 |  | 9,850
Revolving Loans | 6 |  | 6 |  | 33
Revolving Loans Converted to Term Loans | 132 |  | 132 |  | 0
Total | 30,466 |  | 30,466 |  | 34,093
Year to date gross charge-offs |  |  |  |  |
Originated year one |  |  | 0 |  | 0
Originated year two |  |  | 0 |  | 0
Originated year three |  |  | 0 |  | (28)
Originated year four |  |  | (45) |  | (34)
Originated year five |  |  | (59) |  | (42)
Prior year |  |  | (134) |  | (204)
Revolving Loans |  |  | 0 |  | 0
Revolving Loans Converted to Term Loans |  |  | 0 |  | 0
Total | (53) | (101) | (238) | (188) | (308)
Loans and leases held for investment: | Multi-family | Pass |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 16 |  | 16 |  | 17
Originated year two | 15 |  | 15 |  | 700
Originated year three | 578 |  | 578 |  | 6,599
Originated year four | 6,362 |  | 6,362 |  | 6,070
Originated year five | 5,313 |  | 5,313 |  | 5,203
Prior year | 8,587 |  | 8,587 |  | 3,997
Revolving Loans | 4 |  | 4 |  | 27
Revolving Loans Converted to Term Loans | 132 |  | 132 |  | 0
Total | 21,007 |  | 21,007 |  | 22,613
Loans and leases held for investment: | Multi-family | Special Mention |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 14
Originated year three | 24 |  | 24 |  | 688
Originated year four | 480 |  | 480 |  | 694
Originated year five | 923 |  | 923 |  | 646
Prior year | 718 |  | 718 |  | 795
Revolving Loans | 0 |  | 0 |  | 1
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 2,145 |  | 2,145 |  | 2,838
Loans and leases held for investment: | Multi-family | Substandard |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 2
Originated year two | 0 |  | 0 |  | 123
Originated year three | 140 |  | 140 |  | 529
Originated year four | 599 |  | 599 |  | 868
Originated year five | 1,001 |  | 1,001 |  | 1,526
Prior year | 3,132 |  | 3,132 |  | 3,834
Revolving Loans | 2 |  | 2 |  | 5
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 4,874 |  | 4,874 |  | 6,887
Loans and leases held for investment: | Multi-family | Non-accrual |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 0
Originated year three | 12 |  | 12 |  | 113
Originated year four | 315 |  | 315 |  | 144
Originated year five | 355 |  | 355 |  | 274
Prior year | 1,758 |  | 1,758 |  | 1,224
Revolving Loans | 0 |  | 0 |  | 0
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 2,440 |  | 2,440 |  | 1,755
Loans and leases held for investment: | Commercial real estate |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 600 |  | 600 |  | 544
Originated year two | 430 |  | 430 |  | 1,438
Originated year three | 1,246 |  | 1,246 |  | 2,096
Originated year four | 1,778 |  | 1,778 |  | 1,321
Originated year five | 1,078 |  | 1,078 |  | 848
Prior year | 3,484 |  | 3,484 |  | 3,376
Revolving Loans | 1,261 |  | 1,261 |  | 1,840
Revolving Loans Converted to Term Loans | 286 |  | 286 |  | 373
Total | 10,163 |  | 10,163 |  | 11,836
Year to date gross charge-offs |  |  |  |  |
Originated year one |  |  | 0 |  | 0
Originated year two |  |  | 0 |  | (8)
Originated year three |  |  | (6) |  | (81)
Originated year four |  |  | (1) |  | (1)
Originated year five |  |  | (7) |  | (27)
Prior year |  |  | (27) |  | (349)
Revolving Loans |  |  | 0 |  | 0
Revolving Loans Converted to Term Loans |  |  | 0 |  | 0
Total | (19) | (114) | (41) | (415) | (466)
Loans and leases held for investment: | Commercial real estate | Pass |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 600 |  | 600 |  | 542
Originated year two | 420 |  | 420 |  | 1,298
Originated year three | 1,126 |  | 1,126 |  | 1,753
Originated year four | 1,490 |  | 1,490 |  | 1,106
Originated year five | 963 |  | 963 |  | 576
Prior year | 2,378 |  | 2,378 |  | 2,068
Revolving Loans | 1,050 |  | 1,050 |  | 1,597
Revolving Loans Converted to Term Loans | 155 |  | 155 |  | 367
Total | 8,182 |  | 8,182 |  | 9,307
Loans and leases held for investment: | Commercial real estate | Special Mention |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 72
Originated year three | 55 |  | 55 |  | 130
Originated year four | 59 |  | 59 |  | 69
Originated year five | 18 |  | 18 |  | 106
Prior year | 99 |  | 99 |  | 138
Revolving Loans | 42 |  | 42 |  | 120
Revolving Loans Converted to Term Loans | 24 |  | 24 |  | 0
Total | 297 |  | 297 |  | 635
Loans and leases held for investment: | Commercial real estate | Substandard |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 2
Originated year two | 10 |  | 10 |  | 31
Originated year three | 62 |  | 62 |  | 179
Originated year four | 155 |  | 155 |  | 110
Originated year five | 82 |  | 82 |  | 162
Prior year | 552 |  | 552 |  | 723
Revolving Loans | 167 |  | 167 |  | 117
Revolving Loans Converted to Term Loans | 105 |  | 105 |  | 6
Total | 1,133 |  | 1,133 |  | 1,330
Loans and leases held for investment: | Commercial real estate | Non-accrual |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 37
Originated year three | 3 |  | 3 |  | 34
Originated year four | 74 |  | 74 |  | 36
Originated year five | 15 |  | 15 |  | 4
Prior year | 455 |  | 455 |  | 447
Revolving Loans | 2 |  | 2 |  | 6
Revolving Loans Converted to Term Loans | 2 |  | 2 |  | 0
Total | 551 |  | 551 |  | 564
Loans and leases held for investment: | One-to-four family first mortgage |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 657 |  | 657 |  | 251
Originated year two | 362 |  | 362 |  | 527
Originated year three | 482 |  | 482 |  | 2,455
Originated year four | 2,283 |  | 2,283 |  | 871
Originated year five | 831 |  | 831 |  | 201
Prior year | 816 |  | 816 |  | 809
Revolving Loans | 78 |  | 78 |  | 85
Revolving Loans Converted to Term Loans | 4 |  | 4 |  | 2
Total | 5,513 |  | 5,513 |  | 5,201
Year to date gross charge-offs |  |  |  |  |
Originated year one |  |  | 0 |  | 0
Originated year two |  |  | 0 |  | 0
Originated year three |  |  | 0 |  | (1)
Originated year four |  |  | (1) |  | 0
Originated year five |  |  | 0 |  | 0
Prior year |  |  | (2) |  | (7)
Revolving Loans |  |  | 0 |  | 0
Revolving Loans Converted to Term Loans |  |  | 0 |  | 0
Total | (1) | (7) | (3) | (8) | (8)
Loans and leases held for investment: | One-to-four family first mortgage | Pass |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 635 |  | 635 |  | 250
Originated year two | 348 |  | 348 |  | 521
Originated year three | 475 |  | 475 |  | 2,431
Originated year four | 2,248 |  | 2,248 |  | 859
Originated year five | 815 |  | 815 |  | 178
Prior year | 644 |  | 644 |  | 609
Revolving Loans | 76 |  | 76 |  | 80
Revolving Loans Converted to Term Loans | 4 |  | 4 |  | 2
Total | 5,245 |  | 5,245 |  | 4,930
Loans and leases held for investment: | One-to-four family first mortgage | Substandard |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 19 |  | 19 |  | 1
Originated year two | 7 |  | 7 |  | 2
Originated year three | 2 |  | 2 |  | 8
Originated year four | 14 |  | 14 |  | 2
Originated year five | 6 |  | 6 |  | 16
Prior year | 150 |  | 150 |  | 172
Revolving Loans | 0 |  | 0 |  | 0
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 198 |  | 198 |  | 201
Loans and leases held for investment: | One-to-four family first mortgage | Non-accrual |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 3 |  | 3 |  | 0
Originated year two | 7 |  | 7 |  | 4
Originated year three | 5 |  | 5 |  | 16
Originated year four | 21 |  | 21 |  | 10
Originated year five | 10 |  | 10 |  | 7
Prior year | 22 |  | 22 |  | 28
Revolving Loans | 2 |  | 2 |  | 5
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 70 |  | 70 |  | 70
Loans and leases held for investment: | Commercial and Industrial |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 2,071 |  | 2,071 |  | 1,300
Originated year two | 1,006 |  | 1,006 |  | 2,693
Originated year three | 2,292 |  | 2,292 |  | 2,264
Originated year four | 1,917 |  | 1,917 |  | 736
Originated year five | 660 |  | 660 |  | 467
Prior year | 991 |  | 991 |  | 798
Revolving Loans | 5,624 |  | 5,624 |  | 5,940
Revolving Loans Converted to Term Loans | 313 |  | 313 |  | 1,178
Total | 14,874 |  | 14,874 |  | 15,376
Year to date gross charge-offs |  |  |  |  |
Originated year one |  |  | (9) |  | (3)
Originated year two |  |  | (1) |  | (20)
Originated year three |  |  | (15) |  | (40)
Originated year four |  |  | (19) |  | (20)
Originated year five |  |  | (5) |  | (19)
Prior year |  |  | (1) |  | (34)
Revolving Loans |  |  | 0 |  | 0
Revolving Loans Converted to Term Loans |  |  | 0 |  | 0
Total |  |  | (50) |  | (136)
Loans and leases held for investment: | Commercial and Industrial | Pass |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 2,069 |  | 2,069 |  | 1,267
Originated year two | 972 |  | 972 |  | 2,609
Originated year three | 2,164 |  | 2,164 |  | 2,014
Originated year four | 1,812 |  | 1,812 |  | 651
Originated year five | 614 |  | 614 |  | 450
Prior year | 939 |  | 939 |  | 759
Revolving Loans | 5,307 |  | 5,307 |  | 5,554
Revolving Loans Converted to Term Loans | 298 |  | 298 |  | 1,164
Total | 14,175 |  | 14,175 |  | 14,468
Loans and leases held for investment: | Commercial and Industrial | Special Mention |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 17
Originated year two | 14 |  | 14 |  | 29
Originated year three | 10 |  | 10 |  | 18
Originated year four | 14 |  | 14 |  | 4
Originated year five | 7 |  | 7 |  | 2
Prior year | 2 |  | 2 |  | 11
Revolving Loans | 80 |  | 80 |  | 119
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 6
Total | 127 |  | 127 |  | 206
Loans and leases held for investment: | Commercial and Industrial | Substandard |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 2 |  | 2 |  | 13
Originated year two | 16 |  | 16 |  | 50
Originated year three | 89 |  | 89 |  | 72
Originated year four | 49 |  | 49 |  | 72
Originated year five | 33 |  | 33 |  | 7
Prior year | 36 |  | 36 |  | 13
Revolving Loans | 189 |  | 189 |  | 265
Revolving Loans Converted to Term Loans | 4 |  | 4 |  | 8
Total | 418 |  | 418 |  | 500
Loans and leases held for investment: | Commercial and Industrial | Non-accrual |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 3
Originated year two | 4 |  | 4 |  | 5
Originated year three | 29 |  | 29 |  | 160
Originated year four | 42 |  | 42 |  | 9
Originated year five | 6 |  | 6 |  | 8
Prior year | 14 |  | 14 |  | 15
Revolving Loans | 48 |  | 48 |  | 2
Revolving Loans Converted to Term Loans | 11 |  | 11 |  | 0
Total | 154 |  | 154 |  | 202
Other loans held for investment |  |  |  |  |
Year to date gross charge-offs |  |  |  |  |
Total | (10) | (5) | (24) | (15) |
Other loans held for investment | Commercial and Industrial |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Total | 14,874 |  | 14,874 |  | 15,376
Year to date gross charge-offs |  |  |  |  |
Total | (9) | $ (33) | (50) | $ (79) |
Other loans held for investment | Other |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 44 |  | 44 |  | 100
Originated year two | 24 |  | 24 |  | 29
Originated year three | 19 |  | 19 |  | 12
Originated year four | 6 |  | 6 |  | 4
Originated year five | 2 |  | 2 |  | 2
Prior year | 51 |  | 51 |  | 37
Revolving Loans | 1,406 |  | 1,406 |  | 1,461
Revolving Loans Converted to Term Loans | 93 |  | 93 |  | 121
Total | 1,645 |  | 1,645 |  | 1,766
Year to date gross charge-offs |  |  |  |  |
Originated year one |  |  | (6) |  | (2)
Originated year two |  |  | (2) |  | (4)
Originated year three |  |  | (5) |  | (4)
Originated year four |  |  | (6) |  | (1)
Originated year five |  |  | 0 |  | (1)
Prior year |  |  | (5) |  | (8)
Revolving Loans |  |  | 0 |  | 0
Revolving Loans Converted to Term Loans |  |  | 0 |  | 0
Total |  |  | (24) |  | (20)
Other loans held for investment | Other | Pass |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 44 |  | 44 |  | 100
Originated year two | 24 |  | 24 |  | 29
Originated year three | 19 |  | 19 |  | 12
Originated year four | 6 |  | 6 |  | 4
Originated year five | 2 |  | 2 |  | 2
Prior year | 49 |  | 49 |  | 32
Revolving Loans | 1,380 |  | 1,380 |  | 1,441
Revolving Loans Converted to Term Loans | 93 |  | 93 |  | 121
Total | 1,617 |  | 1,617 |  | 1,741
Other loans held for investment | Other | Special Mention |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 0
Originated year three | 0 |  | 0 |  | 0
Originated year four | 0 |  | 0 |  | 0
Originated year five | 0 |  | 0 |  | 0
Prior year | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 1
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | 0 |  | 0 |  | 1
Other loans held for investment | Other | Substandard |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  |
Originated year two | 0 |  | 0 |  |
Originated year three | 0 |  | 0 |  |
Originated year four | 0 |  | 0 |  |
Originated year five | 0 |  | 0 |  |
Prior year | 0 |  | 0 |  |
Revolving Loans | 2 |  | 2 |  |
Revolving Loans Converted to Term Loans | 0 |  | 0 |  |
Total | 2 |  | 2 |  |
Other loans held for investment | Other | Non-accrual |  |  |  |  |
Amortized Cost Basis by Closing Year |  |  |  |  |
Originated year one | 0 |  | 0 |  | 0
Originated year two | 0 |  | 0 |  | 0
Originated year three | 0 |  | 0 |  | 0
Originated year four | 0 |  | 0 |  | 0
Originated year five | 0 |  | 0 |  | 0
Prior year | 2 |  | 2 |  | 5
Revolving Loans | 24 |  | 24 |  | 19
Revolving Loans Converted to Term Loans | 0 |  | 0 |  | 0
Total | $ 26 |  | $ 26 |  | $ 24

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