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BUSINESS OPERATING SEGMENTS - Schedule of Business Operating Segments (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Net interest income | $ 5,633 | $ 6,241 | $ 6,012
Noninterest income | 2,176 | 1,983 | 2,009
Total revenue | 7,809 | 8,224 | 8,021
Direct expenses | 5,234 | 5,507 | 4,892
Indirect expenses | 0 | 0 | 0
Total noninterest expense | 5,234 | 5,507 | 4,892
Profit (loss) before provision for credit losses | 2,575 | 2,717 | 3,129
Provision (benefit) for credit losses | 687 | 687 | 474
Income before income tax expense | 1,888 | 2,030 | 2,655
Income tax expense | 379 | 422 | 582
NET INCOME | 1,509 | 1,608 | 2,073
Total average assets | 219,024 | 222,221 | 215,061
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Noninterest income | 2,176 | 1,983 | 2,009
Operating Segments | Consumer Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 4,565 | 4,187 | 3,649
Noninterest income | 1,131 | 1,067 | 1,063
Total revenue | 5,696 | 5,254 | 4,712
Direct expenses | 2,325 | 2,244 | 2,103
Indirect expenses | 1,353 | 1,298 | 1,152
Total noninterest expense | 3,678 | 3,542 | 3,255
Profit (loss) before provision for credit losses | 2,018 | 1,712 | 1,457
Provision (benefit) for credit losses | 331 | 280 | 174
Income before income tax expense | 1,687 | 1,432 | 1,283
Income tax expense | 434 | 373 | 328
NET INCOME | 1,253 | 1,059 | 955
Total average assets | 75,037 | 72,693 | 68,027
Depreciation and amortization | 113 | 106 | 97
Operating Segments | Commercial Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 1,950 | 2,292 | 2,103
Noninterest income | 908 | 784 | 845
Total revenue | 2,858 | 3,076 | 2,948
Direct expenses | 835 | 857 | 820
Indirect expenses | 406 | 438 | 403
Total noninterest expense | 1,241 | 1,295 | 1,223
Profit (loss) before provision for credit losses | 1,617 | 1,781 | 1,725
Provision (benefit) for credit losses | 353 | 250 | 46
Income before income tax expense | 1,264 | 1,531 | 1,679
Income tax expense | 291 | 378 | 375
NET INCOME | 973 | 1,153 | 1,304
Total average assets | 68,478 | 76,028 | 74,919
Depreciation and amortization | 26 | 30 | 27
Operating Segments | Non-Core |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | (117) | (129) | 378
Noninterest income | 0 | 0 | 0
Total revenue | (117) | (129) | 378
Direct expenses | 4 | 13 | 23
Indirect expenses | 94 | 110 | 113
Total noninterest expense | 98 | 123 | 136
Profit (loss) before provision for credit losses | (215) | (252) | 242
Provision (benefit) for credit losses | 61 | 78 | 52
Income before income tax expense | (276) | (330) | 190
Income tax expense | (70) | (86) | 48
NET INCOME | (206) | (244) | 142
Total average assets | 8,942 | 13,745 | 18,121
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | (765) | (109) | (118)
Noninterest income | 137 | 132 | 101
Total revenue | (628) | 23 | (17)
Direct expenses | 2,070 | 2,393 | 1,946
Indirect expenses | (1,853) | (1,846) | (1,668)
Total noninterest expense | 217 | 547 | 278
Profit (loss) before provision for credit losses | (845) | (524) | (295)
Provision (benefit) for credit losses | (58) | 79 | 202
Income before income tax expense | (787) | (603) | (497)
Income tax expense | (276) | (243) | (169)
NET INCOME | (511) | (360) | (328)
Total average assets | 66,567 | 59,755 | 53,994
Depreciation and amortization | $ 312 | $ 291 | $ 274

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