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Credit Quality And Allowance For Credit Losses (Aging Analysis Of Loans) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | $ 152 | $ 263
Nonaccrual Loans |  | 301 | 308
Current Loans |  | 49,459 | 49,968
Total loans |  | 49,912 | 50,539
30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 99 | 180
60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 41 | 39
90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 12 | 44
Business loans: | Commercial borrower |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 118 | 223
Nonaccrual Loans |  | 239 | 244
Current Loans |  | 45,395 | 45,872
Total loans |  | 45,752 | 46,339
Business loans: | Commercial borrower | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 75 | 148
Business loans: | Commercial borrower | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 31 | 31
Business loans: | Commercial borrower | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 12 | 44
Business loans: | Commercial borrower | Domestic |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 20 | 79
Nonaccrual Loans |  | 108 | 125
Current Loans |  | 25,673 | 26,288
Total loans |  | 25,801 | 26,492
Business loans: | Commercial borrower | Domestic | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 12 | 50
Business loans: | Commercial borrower | Domestic | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 2 | 16
Business loans: | Commercial borrower | Domestic | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 6 | 13
Business loans: | Commercial borrower | International |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Nonaccrual Loans |  | 0 | 0
Current Loans |  | 1,036 | 952
Total loans |  | 1,036 | 952
Business loans: | Commercial borrower | International | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | International | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | International | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Nonaccrual Loans |  | 20 | 0
Current Loans |  | 3,373 | 3,680
Total loans |  | 3,393 | 3,680
Business loans: | Commercial borrower | Real estate construction: | Domestic | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Commercial |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 0 | 0
Nonaccrual Loans | [1] | 20 | 0
Current Loans | [1] | 3,051 | 3,358
Total loans | [1] | 3,071 | 3,358
Business loans: | Commercial borrower | Real estate construction: | Domestic | Commercial | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Commercial | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Commercial | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Other business lines |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 0 | 0
Nonaccrual Loans | [2] | 0 | 0
Current Loans | [2] | 322 | 322
Total loans | [2] | 322 | 322
Business loans: | Commercial borrower | Real estate construction: | Domestic | Other business lines | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Other business lines | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 0 | 0
Business loans: | Commercial borrower | Real estate construction: | Domestic | Other business lines | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 0 | 0
Business loans: | Commercial borrower | Commercial mortgage: | Domestic |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 83 | 132
Nonaccrual Loans |  | 110 | 118
Current Loans |  | 14,595 | 14,243
Total loans |  | 14,788 | 14,493
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 48 | 86
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 29 | 15
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 6 | 31
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Commercial |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 52 | 83
Nonaccrual Loans | [1] | 45 | 49
Current Loans | [1] | 6,227 | 5,912
Total loans | [1] | 6,324 | 6,044
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Commercial | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 32 | 75
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Commercial | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 20 | 8
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Commercial | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [1] | 0 | 0
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Other business lines |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 31 | 49
Nonaccrual Loans | [2] | 65 | 69
Current Loans | [2] | 8,368 | 8,331
Total loans | [2] | 8,464 | 8,449
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Other business lines | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 16 | 11
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Other business lines | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 9 | 7
Business loans: | Commercial borrower | Commercial mortgage: | Domestic | Other business lines | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing | [2] | 6 | 31
Business loans: | Commercial borrower | Lease financing | Domestic |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 15 | 12
Nonaccrual Loans |  | 1 | 1
Current Loans |  | 718 | 709
Total loans |  | 734 | 722
Business loans: | Commercial borrower | Lease financing | Domestic | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 15 | 12
Business loans: | Commercial borrower | Lease financing | Domestic | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Business loans: | Commercial borrower | Lease financing | Domestic | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 34 | 40
Nonaccrual Loans |  | 62 | 64
Current Loans |  | 4,064 | 4,096
Total loans |  | 4,160 | 4,200
Retail loans: | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 24 | 32
Retail loans: | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 10 | 8
Retail loans: | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: | Residential mortgage |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 19 | 10
Nonaccrual Loans |  | 35 | 37
Current Loans |  | 1,862 | 1,882
Total loans |  | 1,916 | 1,929
Retail loans: | Residential mortgage | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 11 | 5
Retail loans: | Residential mortgage | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 8 | 5
Retail loans: | Residential mortgage | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: | Consumer |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 15 | 30
Nonaccrual Loans |  | 27 | 27
Current Loans |  | 2,202 | 2,214
Total loans |  | 2,244 | 2,271
Retail loans: | Consumer | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 13 | 27
Retail loans: | Consumer | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 2 | 3
Retail loans: | Consumer | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: | Consumer | Home equity |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 15 | 14
Nonaccrual Loans |  | 27 | 27
Current Loans |  | 1,744 | 1,761
Total loans |  | 1,786 | 1,802
Retail loans: | Consumer | Home equity | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 13 | 11
Retail loans: | Consumer | Home equity | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 2 | 3
Retail loans: | Consumer | Home equity | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: | Consumer | Other consumer |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 16
Nonaccrual Loans |  | 0 | 0
Current Loans |  | 458 | 453
Total loans |  | 458 | 469
Retail loans: | Consumer | Other consumer | 30-59 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 16
Retail loans: | Consumer | Other consumer | 60-89 Days |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | 0 | 0
Retail loans: | Consumer | Other consumer | 90 Days or More |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans Past Due and Still Accruing |  | $ 0 | $ 0
[1] | Primarily loans to real estate developers.
[2] | Primarily loans secured by owner-occupied real estate.

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