v3.26.1
BUSINESS SEGMENTS - Schedule of Business Operating Segments (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Net interest income $ 1,631 $ 1,437 $ 3,193 $ 2,828
Noninterest income 652 600 1,258 1,144
Total revenue 2,283 2,037 4,451 3,972
Direct expenses 1,394 1,319 2,772 2,633
Indirect expenses 0 0 0 0
Total noninterest expense 1,394 1,319 2,772 2,633
Profit (loss) before provision for credit losses 889 718 1,679 1,339
Credit provision 134 164 274 317
Income before income tax expense 755 554 1,405 1,022
Income tax expense 168 118 301 213
NET INCOME 587 436 1,104 809
Total average assets 229,263 217,661 226,757 216,989
Operating Segments | Consumer Banking        
Segment Reporting [Line Items]        
Net interest income 1,348 1,218 2,657 2,411
Noninterest income 314 329 613 626
Total revenue 1,662 1,547 3,270 3,037
Direct expenses 725 679 1,449 1,348
Indirect expenses 291 284 595 569
Total noninterest expense 1,016 963 2,044 1,917
Profit (loss) before provision for credit losses 646 584 1,226 1,120
Credit provision 72 81 143 167
Income before income tax expense 574 503 1,083 953
Income tax expense 148 127 279 241
NET INCOME 426 376 804 712
Total average assets 85,302 78,822 84,590 78,182
Depreciation and amortization 31 32 63 61
Operating Segments | Commercial Banking        
Segment Reporting [Line Items]        
Net interest income 467 439 923 880
Noninterest income 292 232 555 447
Total revenue 759 671 1,478 1,327
Direct expenses 222 219 450 437
Indirect expenses 104 98 210 207
Total noninterest expense 326 317 660 644
Profit (loss) before provision for credit losses 433 354 818 683
Credit provision 63 84 127 161
Income before income tax expense 370 270 691 522
Income tax expense 90 64 168 120
NET INCOME 280 206 523 402
Total average assets 69,614 66,284 68,681 65,827
Depreciation and amortization 4 5 8 10
Other        
Segment Reporting [Line Items]        
Net interest income (184) (220) (387) (463)
Noninterest income 46 39 90 71
Total revenue (138) (181) (297) (392)
Direct expenses 447 421 873 848
Indirect expenses (395) (382) (805) (776)
Total noninterest expense 52 39 68 72
Profit (loss) before provision for credit losses (190) (220) (365) (464)
Credit provision (1) (1) 4 (11)
Income before income tax expense (189) (219) (369) (453)
Income tax expense (70) (73) (146) (148)
NET INCOME (119) (146) (223) (305)
Total average assets 74,347 72,555 73,486 72,980
Depreciation and amortization $ 72 $ 77 $ 145 $ 155