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Loans and Allowance for Credit Losses - Loans by Portfolio Class and Internal Credit Quality Rating (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
Loans by origination year |  |  |  |  |
Total loans | $ 382,517 |  | $ 382,517 |  | $ 379,832
Total outstanding commitments | 819,484 |  | 819,484 |  | 792,471
Modified loans | 1,244 | $ 1,540 | 3,349 | $ 3,661 |
Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 373,496 |  | 373,496 |  | 369,052
Total outstanding commitments | 807,499 |  | 807,499 |  | 778,155
Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 9,021 |  | 9,021 |  | 10,780
Total outstanding commitments | 11,985 |  | 11,985 |  | 14,316
Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 2,132 |  | 2,132 |  | 2,424
Total outstanding commitments | 3,212 |  | 3,212 |  | 3,875
Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 6,889 |  | 6,889 |  | 8,356
Total outstanding commitments | 8,773 |  | 8,773 |  | 10,441
Loans purchased from GNMA mortgage pools |  |  |  |  |
Loans by origination year |  |  |  |  |
Modified loans | 666 | 588 | 1,677 | 1,640 |
Commercial | Commercial |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 53,498 |  | 53,498 |  | 59,115
Originated in 2024/2023 | 33,770 |  | 33,770 |  | 19,865
Originated in 2023/2022 | 9,599 |  | 9,599 |  | 20,319
Originated in 2022/2021 | 12,471 |  | 12,471 |  | 4,829
Originated in 2021 | 3,064 |  | 3,064 |  |
Originated prior to 2021 | 4,787 |  | 4,787 |  |
Originated prior to 2021 |  |  |  |  | 7,031
Revolving | 31,225 |  | 31,225 |  | 28,325
Total loans | 148,414 |  | 148,414 |  | 139,484
Modified loans | 174 | 318 | 455 | 666 |
Commercial | Commercial | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 52,825 |  | 52,825 |  | 57,578
Originated in 2024/2023 | 32,628 |  | 32,628 |  | 19,128
Originated in 2023/2022 | 9,151 |  | 9,151 |  | 19,718
Originated in 2022/2021 | 12,045 |  | 12,045 |  | 4,677
Originated in 2021 | 3,028 |  | 3,028 |  |
Originated prior to 2021 | 4,642 |  | 4,642 |  |
Originated prior to 2021 |  |  |  |  | 6,812
Revolving | 30,209 |  | 30,209 |  | 27,344
Total loans | 144,528 |  | 144,528 |  | 135,257
Commercial | Commercial | Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 673 |  | 673 |  | 1,537
Originated in 2024/2023 | 1,142 |  | 1,142 |  | 737
Originated in 2023/2022 | 448 |  | 448 |  | 601
Originated in 2022/2021 | 426 |  | 426 |  | 152
Originated in 2021 | 36 |  | 36 |  |
Originated prior to 2021 | 145 |  | 145 |  |
Originated prior to 2021 |  |  |  |  | 219
Revolving | 1,016 |  | 1,016 |  | 981
Total loans | 3,886 |  | 3,886 |  | 4,227
Commercial | Commercial | Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 208 |  | 208 |  | 503
Originated in 2024/2023 | 384 |  | 384 |  | 173
Originated in 2023/2022 | 65 |  | 65 |  | 231
Originated in 2022/2021 | 24 |  | 24 |  | 60
Originated in 2021 | 4 |  | 4 |  |
Originated prior to 2021 | 61 |  | 61 |  |
Originated prior to 2021 |  |  |  |  | 76
Revolving | 576 |  | 576 |  | 169
Total loans | 1,322 |  | 1,322 |  | 1,212
Commercial | Commercial | Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 465 |  | 465 |  | 1,034
Originated in 2024/2023 | 758 |  | 758 |  | 564
Originated in 2023/2022 | 383 |  | 383 |  | 370
Originated in 2022/2021 | 402 |  | 402 |  | 92
Originated in 2021 | 32 |  | 32 |  |
Originated prior to 2021 | 84 |  | 84 |  |
Originated prior to 2021 |  |  |  |  | 143
Revolving | 440 |  | 440 |  | 812
Total loans | 2,564 |  | 2,564 |  | 3,015
Commercial | Commercial real estate |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 11,475 |  | 11,475 |  | 11,685
Originated in 2024/2023 | 7,854 |  | 7,854 |  | 6,015
Originated in 2023/2022 | 4,719 |  | 4,719 |  | 10,621
Originated in 2022/2021 | 7,515 |  | 7,515 |  | 6,811
Originated in 2021 | 5,169 |  | 5,169 |  |
Originated prior to 2021 | 9,530 |  | 9,530 |  |
Originated prior to 2021 |  |  |  |  | 11,578
Revolving | 1,978 |  | 1,978 |  | 2,146
Revolving converted to term | 4 |  | 4 |  | 3
Total loans | 48,244 |  | 48,244 |  | 48,859
Modified loans | 179 | 428 | 444 | 837 |
Commercial | Commercial real estate | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 10,556 |  | 10,556 |  | 9,652
Originated in 2024/2023 | 7,222 |  | 7,222 |  | 5,213
Originated in 2023/2022 | 4,052 |  | 4,052 |  | 9,047
Originated in 2022/2021 | 6,568 |  | 6,568 |  | 6,515
Originated in 2021 | 4,938 |  | 4,938 |  |
Originated prior to 2021 | 8,908 |  | 8,908 |  |
Originated prior to 2021 |  |  |  |  | 10,822
Revolving | 1,920 |  | 1,920 |  | 2,078
Revolving converted to term | 4 |  | 4 |  | 3
Total loans | 44,168 |  | 44,168 |  | 43,330
Commercial | Commercial real estate | Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 919 |  | 919 |  | 2,033
Originated in 2024/2023 | 632 |  | 632 |  | 802
Originated in 2023/2022 | 667 |  | 667 |  | 1,574
Originated in 2022/2021 | 947 |  | 947 |  | 296
Originated in 2021 | 231 |  | 231 |  |
Originated prior to 2021 | 622 |  | 622 |  |
Originated prior to 2021 |  |  |  |  | 756
Revolving | 58 |  | 58 |  | 68
Revolving converted to term | 0 |  | 0 |  | 0
Total loans | 4,076 |  | 4,076 |  | 5,529
Commercial | Commercial real estate | Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 142 |  | 142 |  | 261
Originated in 2024/2023 | 58 |  | 58 |  | 42
Originated in 2023/2022 | 55 |  | 55 |  | 661
Originated in 2022/2021 | 272 |  | 272 |  | 100
Originated in 2021 | 87 |  | 87 |  |
Originated prior to 2021 | 149 |  | 149 |  |
Originated prior to 2021 |  |  |  |  | 148
Revolving | 47 |  | 47 |  | 0
Revolving converted to term | 0 |  | 0 |  | 0
Total loans | 810 |  | 810 |  | 1,212
Commercial | Commercial real estate | Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 777 |  | 777 |  | 1,772
Originated in 2024/2023 | 574 |  | 574 |  | 760
Originated in 2023/2022 | 612 |  | 612 |  | 913
Originated in 2022/2021 | 675 |  | 675 |  | 196
Originated in 2021 | 144 |  | 144 |  |
Originated prior to 2021 | 473 |  | 473 |  |
Originated prior to 2021 |  |  |  |  | 608
Revolving | 11 |  | 11 |  | 68
Revolving converted to term | 0 |  | 0 |  | 0
Total loans | 3,266 |  | 3,266 |  | 4,317
Consumer | Residential mortgages |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 8,077 |  | 8,077 |  | 10,291
Originated in 2024/2023 | 8,672 |  | 8,672 |  | 8,775
Originated in 2023/2022 | 8,168 |  | 8,168 |  | 28,527
Originated in 2022/2021 | 24,920 |  | 24,920 |  | 34,729
Originated in 2021 | 31,361 |  | 31,361 |  |
Originated prior to 2021 | 33,847 |  | 33,847 |  |
Originated prior to 2021 |  |  |  |  | 36,491
Revolving | 1 |  | 1 |  | 0
Total loans | 115,046 |  | 115,046 |  | 118,813
Modified loans | 46 | 31 | 330 | 77 |
Consumer | Residential mortgages | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 8,076 |  | 8,076 |  | 10,291
Originated in 2024/2023 | 8,660 |  | 8,660 |  | 8,764
Originated in 2023/2022 | 8,137 |  | 8,137 |  | 28,484
Originated in 2022/2021 | 24,860 |  | 24,860 |  | 34,694
Originated in 2021 | 31,300 |  | 31,300 |  |
Originated prior to 2021 | 33,556 |  | 33,556 |  |
Originated prior to 2021 |  |  |  |  | 36,211
Revolving | 1 |  | 1 |  | 0
Total loans | 114,590 |  | 114,590 |  | 118,444
Consumer | Residential mortgages | Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 1 |  | 1 |  | 0
Originated in 2024/2023 | 12 |  | 12 |  | 11
Originated in 2023/2022 | 31 |  | 31 |  | 43
Originated in 2022/2021 | 60 |  | 60 |  | 35
Originated in 2021 | 61 |  | 61 |  |
Originated prior to 2021 | 291 |  | 291 |  |
Originated prior to 2021 |  |  |  |  | 280
Revolving | 0 |  | 0 |  | 0
Total loans | 456 |  | 456 |  | 369
Consumer | Residential mortgages | Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 0 |  | 0 |  | 0
Originated in 2024/2023 | 0 |  | 0 |  | 0
Originated in 2023/2022 | 0 |  | 0 |  | 0
Originated in 2022/2021 | 0 |  | 0 |  | 0
Originated in 2021 | 0 |  | 0 |  |
Originated prior to 2021 | 0 |  | 0 |  |
Originated prior to 2021 |  |  |  |  | 0
Revolving | 0 |  | 0 |  | 0
Total loans | 0 |  | 0 |  | 0
Consumer | Residential mortgages | Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 1 |  | 1 |  | 0
Originated in 2024/2023 | 12 |  | 12 |  | 11
Originated in 2023/2022 | 31 |  | 31 |  | 43
Originated in 2022/2021 | 60 |  | 60 |  | 35
Originated in 2021 | 61 |  | 61 |  |
Originated prior to 2021 | 291 |  | 291 |  |
Originated prior to 2021 |  |  |  |  | 280
Revolving | 0 |  | 0 |  | 0
Total loans | 456 |  | 456 |  | 369
Consumer | Residential mortgages | Loans purchased from GNMA mortgage pools | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Loans 90 days or more past due | 2,400 |  | 2,400 |  | 2,300
Modified loans |  |  | 1,500 |  | 1,400
Consumer | Credit card |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 30,594 |  | 30,594 |  | 30,350
Modified loans | 147 | 135 | 355 | 332 |
Consumer | Credit card | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 30,210 |  | 30,210 |  | 29,915
Consumer | Credit card | Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 384 |  | 384 |  | 435
Consumer | Credit card | Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 0 |  | 0 |  | 0
Consumer | Credit card | Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Total loans | 384 |  | 384 |  | 435
Consumer | Other retail |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 4,896 |  | 4,896 |  | 7,401
Originated in 2024/2023 | 5,421 |  | 5,421 |  | 3,975
Originated in 2023/2022 | 2,981 |  | 2,981 |  | 4,096
Originated in 2022/2021 | 2,904 |  | 2,904 |  | 6,551
Originated in 2021 | 4,441 |  | 4,441 |  |
Originated prior to 2021 | 4,255 |  | 4,255 |  |
Originated prior to 2021 |  |  |  |  | 5,564
Revolving | 14,488 |  | 14,488 |  | 13,966
Revolving converted to term | 833 |  | 833 |  | 773
Total loans | 40,219 |  | 40,219 |  | 42,326
Modified loans | 32 | $ 40 | 88 | $ 109 |
Consumer | Other retail | Pass |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 4,894 |  | 4,894 |  | 7,398
Originated in 2024/2023 | 5,412 |  | 5,412 |  | 3,966
Originated in 2023/2022 | 2,971 |  | 2,971 |  | 4,085
Originated in 2022/2021 | 2,893 |  | 2,893 |  | 6,537
Originated in 2021 | 4,431 |  | 4,431 |  |
Originated prior to 2021 | 4,238 |  | 4,238 |  |
Originated prior to 2021 |  |  |  |  | 5,543
Revolving | 14,369 |  | 14,369 |  | 13,846
Revolving converted to term | 792 |  | 792 |  | 731
Total loans | 40,000 |  | 40,000 |  | 42,106
Consumer | Other retail | Total Criticized |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 2 |  | 2 |  | 3
Originated in 2024/2023 | 9 |  | 9 |  | 9
Originated in 2023/2022 | 10 |  | 10 |  | 11
Originated in 2022/2021 | 11 |  | 11 |  | 14
Originated in 2021 | 10 |  | 10 |  |
Originated prior to 2021 | 17 |  | 17 |  |
Originated prior to 2021 |  |  |  |  | 21
Revolving | 119 |  | 119 |  | 120
Revolving converted to term | 41 |  | 41 |  | 42
Total loans | 219 |  | 219 |  | 220
Consumer | Other retail | Special Mention |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 0 |  | 0 |  | 0
Originated in 2024/2023 | 0 |  | 0 |  | 0
Originated in 2023/2022 | 0 |  | 0 |  | 0
Originated in 2022/2021 | 0 |  | 0 |  | 0
Originated in 2021 | 0 |  | 0 |  |
Originated prior to 2021 | 0 |  | 0 |  |
Originated prior to 2021 |  |  |  |  | 0
Revolving | 0 |  | 0 |  | 0
Revolving converted to term | 0 |  | 0 |  | 0
Total loans | 0 |  | 0 |  | 0
Consumer | Other retail | Classified |  |  |  |  |
Loans by origination year |  |  |  |  |
Originated in 2025/2024 | 2 |  | 2 |  | 3
Originated in 2024/2023 | 9 |  | 9 |  | 9
Originated in 2023/2022 | 10 |  | 10 |  | 11
Originated in 2022/2021 | 11 |  | 11 |  | 14
Originated in 2021 | 10 |  | 10 |  |
Originated prior to 2021 | 17 |  | 17 |  |
Originated prior to 2021 |  |  |  |  | 21
Revolving | 119 |  | 119 |  | 120
Revolving converted to term | 41 |  | 41 |  | 42
Total loans | $ 219 |  | $ 219 |  | $ 220

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