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Loans and Related Allowance for Credit Losses (Commercial Lending Asset Quality Indicators) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Total loans, net | [1] | $ 321,429 |  | $ 321,429 |  | $ 321,508
Gross charge-offs |  |  |  |  |  |
Total |  | 375 | $ 293 | 705 | $ 575 |
Commercial |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 13,691 |  | 13,691 |  | 29,806
Year two |  | 25,988 |  | 25,988 |  | 39,814
Year three |  | 33,454 |  | 33,454 |  | 12,512
Year four |  | 10,790 |  | 10,790 |  | 9,535
Year five |  | 8,239 |  | 8,239 |  | 10,387
Prior |  | 29,691 |  | 29,691 |  | 23,271
Revolving Loans |  | 98,164 |  | 98,164 |  | 93,609
Revolving Loans Converted to Term |  | 825 |  | 825 |  | 624
Total loans, net |  | 220,842 |  | 220,842 |  | 219,558
Gross charge-offs |  |  |  |  |  |
Year one |  |  |  | 11 |  | 29
Year two |  |  |  | 24 |  | 36
Year three |  |  |  | 27 |  | 37
Year four |  |  |  | 22 |  | 24
Year five |  |  |  | 6 |  | 35
Prior |  |  |  | 166 |  | 164
Revolving Loans |  |  |  | 42 |  | 105
Revolving Loans Converted to Term |  |  |  | 48 |  | 12
Total |  | 198 | $ 135 | 346 | $ 255 | 442
Commercial | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 11,717 |  | 11,717 |  | 23,857
Year two |  | 19,174 |  | 19,174 |  | 28,438
Year three |  | 22,290 |  | 22,290 |  | 8,301
Year four |  | 6,907 |  | 6,907 |  | 6,114
Year five |  | 5,379 |  | 5,379 |  | 4,391
Prior |  | 14,824 |  | 14,824 |  | 12,680
Revolving Loans |  | 97,724 |  | 97,724 |  | 93,175
Revolving Loans Converted to Term |  | 774 |  | 774 |  | 624
Total loans, net |  | 178,789 |  | 178,789 |  | 177,580
Gross charge-offs |  |  |  |  |  |
Year one |  |  |  | 11 |  | 25
Year two |  |  |  | 14 |  | 32
Year three |  |  |  | 21 |  | 33
Year four |  |  |  | 18 |  | 8
Year five |  |  |  | 3 |  | 3
Prior |  |  |  | 4 |  | 26
Revolving Loans |  |  |  | 42 |  | 105
Revolving Loans Converted to Term |  |  |  | 48 |  | 12
Total |  |  |  | 161 |  | 244
Commercial | Commercial real estate |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 1,204 |  | 1,204 |  | 4,337
Year two |  | 5,315 |  | 5,315 |  | 9,871
Year three |  | 9,798 |  | 9,798 |  | 3,441
Year four |  | 3,220 |  | 3,220 |  | 2,680
Year five |  | 2,238 |  | 2,238 |  | 5,509
Prior |  | 13,232 |  | 13,232 |  | 9,164
Revolving Loans |  | 440 |  | 440 |  | 434
Revolving Loans Converted to Term |  | 51 |  | 51 |  |
Total loans, net |  | 35,498 |  | 35,498 |  | 35,436
Gross charge-offs |  |  |  |  |  |
Year one |  |  |  |  |  |
Year two |  |  |  | 5 |  |
Year three |  |  |  |  |  |
Year four |  |  |  | 2 |  | 12
Year five |  |  |  | 1 |  | 31
Prior |  |  |  | 161 |  | 137
Revolving Loans |  |  |  |  |  |
Revolving Loans Converted to Term |  |  |  |  |  |
Total |  |  |  | 169 |  | 180
Commercial | Equipment lease financing |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 770 |  | 770 |  | 1,612
Year two |  | 1,499 |  | 1,499 |  | 1,505
Year three |  | 1,366 |  | 1,366 |  | 770
Year four |  | 663 |  | 663 |  | 741
Year five |  | 622 |  | 622 |  | 487
Prior |  | 1,635 |  | 1,635 |  | 1,427
Revolving Loans |  |  |  |  |  |
Revolving Loans Converted to Term |  |  |  |  |  |
Total loans, net |  | 6,555 |  | 6,555 |  | 6,542
Gross charge-offs |  |  |  |  |  |
Year one |  |  |  |  |  | 4
Year two |  |  |  | 5 |  | 4
Year three |  |  |  | 6 |  | 4
Year four |  |  |  | 2 |  | 4
Year five |  |  |  | 2 |  | 1
Prior |  |  |  | 1 |  | 1
Revolving Loans |  |  |  |  |  |
Revolving Loans Converted to Term |  |  |  |  |  |
Total |  |  |  | 16 |  | 18
Pass Rated | Commercial | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 11,419 |  | 11,419 |  | 23,019
Year two |  | 18,080 |  | 18,080 |  | 26,657
Year three |  | 19,842 |  | 19,842 |  | 7,562
Year four |  | 6,104 |  | 6,104 |  | 5,783
Year five |  | 5,190 |  | 5,190 |  | 4,110
Prior |  | 14,021 |  | 14,021 |  | 11,982
Revolving Loans |  | 92,363 |  | 92,363 |  | 88,467
Revolving Loans Converted to Term |  | 695 |  | 695 |  | 573
Total loans, net |  | 167,714 |  | 167,714 |  | 168,153
Pass Rated | Commercial | Commercial real estate |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 1,113 |  | 1,113 |  | 4,182
Year two |  | 5,125 |  | 5,125 |  | 8,571
Year three |  | 8,166 |  | 8,166 |  | 2,986
Year four |  | 2,759 |  | 2,759 |  | 2,190
Year five |  | 1,761 |  | 1,761 |  | 4,887
Prior |  | 10,946 |  | 10,946 |  | 7,411
Revolving Loans |  | 420 |  | 420 |  | 383
Revolving Loans Converted to Term |  |  |  |  |  |
Total loans, net |  | 30,290 |  | 30,290 |  | 30,610
Pass Rated | Commercial | Equipment lease financing |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 746 |  | 746 |  | 1,522
Year two |  | 1,392 |  | 1,392 |  | 1,424
Year three |  | 1,281 |  | 1,281 |  | 689
Year four |  | 591 |  | 591 |  | 690
Year five |  | 580 |  | 580 |  | 452
Prior |  | 1,590 |  | 1,590 |  | 1,378
Revolving Loans |  |  |  |  |  |
Revolving Loans Converted to Term |  |  |  |  |  |
Total loans, net |  | 6,180 |  | 6,180 |  | 6,155
Criticized | Commercial | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 298 |  | 298 |  | 838
Year two |  | 1,094 |  | 1,094 |  | 1,781
Year three |  | 2,448 |  | 2,448 |  | 739
Year four |  | 803 |  | 803 |  | 331
Year five |  | 189 |  | 189 |  | 281
Prior |  | 803 |  | 803 |  | 698
Revolving Loans |  | 5,361 |  | 5,361 |  | 4,708
Revolving Loans Converted to Term |  | 79 |  | 79 |  | 51
Total loans, net |  | 11,075 |  | 11,075 |  | 9,427
Criticized | Commercial | Commercial real estate |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 91 |  | 91 |  | 155
Year two |  | 190 |  | 190 |  | 1,300
Year three |  | 1,632 |  | 1,632 |  | 455
Year four |  | 461 |  | 461 |  | 490
Year five |  | 477 |  | 477 |  | 622
Prior |  | 2,286 |  | 2,286 |  | 1,753
Revolving Loans |  | 20 |  | 20 |  | 51
Revolving Loans Converted to Term |  | 51 |  | 51 |  |
Total loans, net |  | 5,208 |  | 5,208 |  | 4,826
Criticized | Commercial | Equipment lease financing |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |  |  |  |
Year one |  | 24 |  | 24 |  | 90
Year two |  | 107 |  | 107 |  | 81
Year three |  | 85 |  | 85 |  | 81
Year four |  | 72 |  | 72 |  | 51
Year five |  | 42 |  | 42 |  | 35
Prior |  | 45 |  | 45 |  | 49
Revolving Loans |  |  |  |  |  |
Revolving Loans Converted to Term |  |  |  |  |  |
Total loans, net |  | $ 375 |  | $ 375 |  | $ 387
[1] | Our consolidated assets included the following for which we have elected the fair value option: Loans held for sale of $0.9 billion, Loans held for investment of $1.2 billion and Other assets of $0.1 billion at June 30, 2024. Comparable amounts at December 31, 2023 were $0.7 billion, $1.2 billion and $0.1 billion, respectively.

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