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Business Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items] |  |  |
Reportable segments | segment | 3 |  |
Net interest income and other financing income (loss) | $ 4,818 | $ 5,320 | $ 4,786
Provision for credit losses | 487 | 553 | 271
Total Noninterest Income | 2,265 | 2,256 | 2,429
Salaries and employee benefits | 2,529 | 2,416 | 2,318
Equipment and software expense | 406 | 412 | 392
Net occupancy expense | 278 | 289 | 300
Other expenses | 1,029 | 1,299 | 1,058
Total non-interest expense | 4,242 | 4,416 | 4,068
Income before income taxes | 2,354 | 2,607 | 2,876
Income tax expense (benefit) | 461 | 533 | 631
Net income (loss) | 1,893 | 2,074 | 2,245
Average assets | 153,881 | 153,017 | 159,392
Service charges on deposit accounts |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 612 | 592 | 641
Card and ATM fees |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 467 | 504 | 513
Capital markets income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 348 | 222 | 339
Asset Management Income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 338 | 313 | 297
Mortgage income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 146 | 109 | 156
Investment Services Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 157 | 138 | 122
Commercial Credit Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 111 | 105 | 96
Bank-owned life insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 102 | 78 | 62
Securities gains, net [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | (208) | (5) | (1)
Market value adjustments on employee benefit assets - other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 25 | 15 | (45)
Other miscellaneous income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 167 | 185 | 199
Insurance Proceeds |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income |  |  | 50
Corporate Bank [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income and other financing income (loss) | 1,821 | 2,007 | 1,961
Provision for credit losses | 362 | 343 | 287
Total Noninterest Income | 897 | 712 | 803
Salaries and employee benefits | 558 | 546 | 557
Equipment and software expense | 19 | 20 | 23
Net occupancy expense | 27 | 27 | 27
Other expenses | 666 | 635 | 577
Total non-interest expense | 1,270 | 1,228 | 1,184
Income before income taxes | 1,086 | 1,148 | 1,293
Income tax expense (benefit) | 271 | 287 | 323
Net income (loss) | 815 | 861 | 970
Average assets | 69,207 | 69,520 | 64,532
Corporate Bank [Member] | Service charges on deposit accounts |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 223 | 193 | 177
Corporate Bank [Member] | Card and ATM fees |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 43 | 45 | 44
Corporate Bank [Member] | Capital markets income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 346 | 219 | 339
Corporate Bank [Member] | Asset Management Income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Corporate Bank [Member] | Mortgage income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Corporate Bank [Member] | Investment Services Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Corporate Bank [Member] | Commercial Credit Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 111 | 105 | 96
Corporate Bank [Member] | Bank-owned life insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Corporate Bank [Member] | Securities gains, net [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | (1) | 0
Corporate Bank [Member] | Market value adjustments on employee benefit assets - other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Corporate Bank [Member] | Other miscellaneous income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 174 | 151 | 147
Corporate Bank [Member] | Insurance Proceeds |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income |  |  | 0
Consumer Bank [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income and other financing income (loss) | 2,834 | 3,123 | 2,641
Provision for credit losses | 270 | 279 | 280
Total Noninterest Income | 1,037 | 1,044 | 1,165
Salaries and employee benefits | 721 | 732 | 733
Equipment and software expense | 101 | 110 | 115
Net occupancy expense | 210 | 222 | 222
Other expenses | 1,369 | 1,509 | 1,226
Total non-interest expense | 2,401 | 2,573 | 2,296
Income before income taxes | 1,200 | 1,315 | 1,230
Income tax expense (benefit) | 300 | 330 | 308
Net income (loss) | 900 | 985 | 922
Average assets | 37,947 | 37,762 | 36,623
Consumer Bank [Member] | Service charges on deposit accounts |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 385 | 396 | 459
Consumer Bank [Member] | Card and ATM fees |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 424 | 458 | 468
Consumer Bank [Member] | Capital markets income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 1 | 1 | 1
Consumer Bank [Member] | Asset Management Income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Mortgage income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 146 | 109 | 156
Consumer Bank [Member] | Investment Services Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Commercial Credit Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Bank-owned life insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Securities gains, net [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Market value adjustments on employee benefit assets - other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Consumer Bank [Member] | Other miscellaneous income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 81 | 80 | 81
Consumer Bank [Member] | Insurance Proceeds |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income |  |  | 0
Wealth Management [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income and other financing income (loss) | 163 | 190 | 184
Provision for credit losses | 8 | 8 | 9
Total Noninterest Income | 502 | 457 | 426
Salaries and employee benefits | 260 | 254 | 236
Equipment and software expense | 3 | 3 | 3
Net occupancy expense | 12 | 12 | 13
Other expenses | 178 | 158 | 152
Total non-interest expense | 453 | 427 | 404
Income before income taxes | 204 | 212 | 197
Income tax expense (benefit) | 51 | 52 | 50
Net income (loss) | 153 | 160 | 147
Average assets | 2,063 | 2,044 | 2,116
Wealth Management [Member] | Service charges on deposit accounts |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 3 | 3 | 3
Wealth Management [Member] | Card and ATM fees |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 1 | 0 | 1
Wealth Management [Member] | Capital markets income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 1 | 1 | 1
Wealth Management [Member] | Asset Management Income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 338 | 313 | 297
Wealth Management [Member] | Mortgage income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Wealth Management [Member] | Investment Services Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 157 | 138 | 122
Wealth Management [Member] | Commercial Credit Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Wealth Management [Member] | Bank-owned life insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Wealth Management [Member] | Securities gains, net [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Wealth Management [Member] | Market value adjustments on employee benefit assets - other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Wealth Management [Member] | Other miscellaneous income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 2 | 2 | 2
Wealth Management [Member] | Insurance Proceeds |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income |  |  | 0
Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income and other financing income (loss) | 0 | 0 | 0
Provision for credit losses | (153) | (77) | (305)
Total Noninterest Income | (171) | 43 | 35
Salaries and employee benefits | 990 | 884 | 792
Equipment and software expense | 283 | 279 | 251
Net occupancy expense | 29 | 28 | 38
Other expenses | (1,184) | (1,003) | (897)
Total non-interest expense | 118 | 188 | 184
Income before income taxes | (136) | (68) | 156
Income tax expense (benefit) | (161) | (136) | (50)
Net income (loss) | 25 | 68 | 206
Average assets | 44,664 | 43,691 | 56,121
Other [Member] | Service charges on deposit accounts |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 1 | 0 | 2
Other [Member] | Card and ATM fees |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | (1) | 1 | 0
Other [Member] | Capital markets income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 1 | (2)
Other [Member] | Asset Management Income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Other [Member] | Mortgage income |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Other [Member] | Investment Services Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Other [Member] | Commercial Credit Fee Income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 0 | 0 | 0
Other [Member] | Bank-owned life insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 102 | 78 | 62
Other [Member] | Securities gains, net [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | (208) | (4) | (1)
Other [Member] | Market value adjustments on employee benefit assets - other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | 25 | 15 | (45)
Other [Member] | Other miscellaneous income [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income | (90) | (48) | (31)
Other [Member] | Insurance Proceeds |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Noninterest Income |  |  | 50
Other Revenue - Not Impacted [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
RevenueFromContractWithCustomerExcludingAssessedTax | $ 473 | $ 534 | $ 663

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