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Credit Quality And Allowance For Credit Losses (Changes In The Allowance For Loan Losses And Related Loan Amounts) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 690 | $ 688 |  |
Financing receivable, allowance for credit loss, excluding accrued interest and off-balance-sheet | 728 | 661 | $ 618 |
Provision for loan losses | 49 | 89 | 60 |
Financing receivable, allowance for credit loss, excluding accrued interest, end of period | $ 725 | $ 728 | $ 661 |
As a percentage of total loans | 1.44% | 1.40% | 1.24% |
Financing Receivable [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 690 | $ 688 | $ 610 | $ 588
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 95 | 62 | 68 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery | 43 | 40 | 51 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) | 52 | 22 | 17 |
Provision for loan losses | $ 54 | $ 100 | $ 39 |
As a percentage of total loans | 1.37% | 1.32% | 1.14% |
Unused Commitments to Extend Credit |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 35 | $ 40 | $ 51 | 30
Provision for loan losses | (5) | (11) | 21 |
Business loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 653 | 651 | 581 | 555
Provision for loan losses | $ 54 | $ 91 | $ 44 |
As a percentage of total loans | 1.41% | 1.36% | 1.18% |
Business loans | Financing Receivable [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 625 | $ 620 | $ 541 | 531
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 93 | 59 | 65 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery | 41 | 38 | 47 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) | 52 | 21 | 18 |
Provision for loan losses | $ 57 | $ 100 | $ 28 |
As a percentage of total loans | 1.35% | 1.29% | 1.10% |
Business loans | Unused Commitments to Extend Credit |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 28 | $ 31 | $ 40 | 24
Provision for loan losses | (3) | (9) | 16 |
Retail loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 72 | 77 | 80 | 63
Provision for loan losses | $ (5) | $ (2) | $ 16 |
As a percentage of total loans | 1.73% | 1.85% | 1.96% |
Retail loans | Financing Receivable [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 65 | $ 68 | $ 69 | 57
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 2 | 3 | 3 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery | 2 | 2 | 4 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) | 0 | 1 | 1 |
Provision for loan losses | $ (3) | $ 0 | $ 11 |
As a percentage of total loans | 1.55% | 1.63% | 1.67% |
Retail loans | Unused Commitments to Extend Credit |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 7 | $ 9 | $ 11 | $ 6
Provision for loan losses | $ (2) | $ (2) | $ 5 |

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