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BUSINESS SEGMENTS - Schedule of Business Operating Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Net interest income | $ 1,488 | $ 1,369 | $ 4,316 | $ 4,221
Noninterest income | 630 | 532 | 1,774 | 1,602
Total revenue | 2,118 | 1,901 | 6,090 | 5,823
Direct expenses | 1,335 | 1,259 | 3,968 | 3,918
Indirect expenses | 0 | 0 | 0 | 0
Total noninterest expense | 1,335 | 1,259 | 3,968 | 3,918
Profit (loss) before provision for credit losses | 783 | 642 | 2,122 | 1,905
Credit provision | 154 | 172 | 471 | 525
Income before income tax expense | 629 | 470 | 1,651 | 1,380
Income tax expense | 135 | 88 | 348 | 272
NET INCOME | 494 | 382 | 1,303 | 1,108
Total average assets | 219,117 | 218,578 | 217,706 | 219,520
Operating Segments | Consumer Banking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income | 1,262 | 1,156 | 3,673 | 3,369
Noninterest income | 311 | 285 | 937 | 820
Total revenue | 1,573 | 1,441 | 4,610 | 4,189
Direct expenses | 692 | 586 | 2,040 | 1,728
Indirect expenses | 287 | 330 | 856 | 1,006
Total noninterest expense | 979 | 916 | 2,896 | 2,734
Profit (loss) before provision for credit losses | 594 | 525 | 1,714 | 1,455
Credit provision | 81 | 84 | 248 | 249
Income before income tax expense | 513 | 441 | 1,466 | 1,206
Income tax expense | 130 | 114 | 371 | 311
NET INCOME | 383 | 327 | 1,095 | 895
Total average assets | 80,729 | 75,392 | 79,040 | 74,510
Depreciation and amortization | 30 | 29 | 92 | 84
Operating Segments | Commercial Banking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income | 448 | 478 | 1,328 | 1,486
Noninterest income | 286 | 207 | 733 | 676
Total revenue | 734 | 685 | 2,061 | 2,162
Direct expenses | 223 | 205 | 660 | 626
Indirect expenses | 110 | 95 | 317 | 302
Total noninterest expense | 333 | 300 | 977 | 928
Profit (loss) before provision for credit losses | 401 | 385 | 1,084 | 1,234
Credit provision | 78 | 91 | 239 | 262
Income before income tax expense | 323 | 294 | 845 | 972
Income tax expense | 75 | 63 | 195 | 223
NET INCOME | 248 | 231 | 650 | 749
Total average assets | 66,134 | 68,092 | 65,931 | 69,046
Depreciation and amortization | 5 | 6 | 15 | 21
Operating Segments | Non-Core |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income | (7) | (28) | (27) | (96)
Noninterest income | 4 | 0 | 7 | 0
Total revenue | (3) | (28) | (20) | (96)
Direct expenses | 1 | 1 | 2 | 3
Indirect expenses | 11 | 22 | 41 | 71
Total noninterest expense | 12 | 23 | 43 | 74
Profit (loss) before provision for credit losses | (15) | (51) | (63) | (170)
Credit provision | 4 | 17 | 43 | 46
Income before income tax expense | (19) | (68) | (106) | (216)
Income tax expense | (5) | (17) | (27) | (55)
NET INCOME | (14) | (51) | (79) | (161)
Total average assets | 4,000 | 8,389 | 5,241 | 9,450
Depreciation and amortization |  |  | 230 | 233
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income | (215) | (237) | (658) | (538)
Noninterest income | 29 | 40 | 97 | 106
Total revenue | (186) | (197) | (561) | (432)
Direct expenses | 419 | 467 | 1,266 | 1,561
Indirect expenses | (408) | (447) | (1,214) | (1,379)
Total noninterest expense | 11 | 20 | 52 | 182
Profit (loss) before provision for credit losses | (197) | (217) | (613) | (614)
Credit provision | (9) | (20) | (59) | (32)
Income before income tax expense | (188) | (197) | (554) | (582)
Income tax expense | (65) | (72) | (191) | (207)
NET INCOME | (123) | (125) | (363) | (375)
Total average assets | 68,254 | $ 66,705 | $ 67,494 | 66,514
Depreciation and amortization | $ 77 |  |  | $ 79

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