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Loans and Leases - Balances of Commercial Loan Portfolio Classes, Disaggregated by PD Grade (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | $ 63,260 | $ 62,565
Commercial: | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 1,864 | 5,780
Financing receivable, originated year two | 5,681 | 2,818
Financing receivable, originated year three | 2,550 | 3,840
Financing receivable, originated year four | 3,506 | 2,562
Financing receivable, originated year five | 2,192 | 1,121
Financing receivable, originated prior to year five | 4,767 | 4,079
LMC | 4,058 | 3,471
Revolving Loans | 9,514 | 9,446
Revolving Loans Converted to Term Loans | 227 | 311
Loans and leases | 34,359 | 33,428
Commercial: | Commercial and industrial | Pass (PD grades 1 through 12) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 1,850 | 5,590
Financing receivable, originated year two | 5,466 | 2,607
Financing receivable, originated year three | 2,337 | 3,649
Financing receivable, originated year four | 3,171 | 2,336
Financing receivable, originated year five | 1,993 | 1,055
Financing receivable, originated prior to year five | 4,444 | 3,853
LMC | 4,056 | 3,471
Revolving Loans | 8,972 | 8,784
Revolving Loans Converted to Term Loans | 185 | 248
Loans and leases | 32,474 | 31,593
Commercial: | Commercial and industrial | Special Mention (PD grade 13) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 1 | 106
Financing receivable, originated year two | 112 | 27
Financing receivable, originated year three | 59 | 78
Financing receivable, originated year four | 85 | 47
Financing receivable, originated year five | 38 | 33
Financing receivable, originated prior to year five | 86 | 57
LMC | 2 | 0
Revolving Loans | 193 | 279
Revolving Loans Converted to Term Loans | 14 | 2
Loans and leases | 590 | 629
Commercial: | Commercial and industrial | Substandard, Doubtful, or Loss (PD grades 14,15, and 16) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 13 | 84
Financing receivable, originated year two | 103 | 184
Financing receivable, originated year three | 154 | 113
Financing receivable, originated year four | 250 | 179
Financing receivable, originated year five | 161 | 33
Financing receivable, originated prior to year five | 237 | 169
LMC | 0 | 0
Revolving Loans | 349 | 383
Revolving Loans Converted to Term Loans | 28 | 61
Loans and leases | 1,295 | 1,206
Commercial: | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 13,936 | 14,421
Commercial: | Commercial real estate | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 351 | 697
Financing receivable, originated year two | 860 | 1,369
Financing receivable, originated year three | 1,626 | 3,813
Financing receivable, originated year four | 3,411 | 3,254
Financing receivable, originated year five | 2,732 | 1,047
Financing receivable, originated prior to year five | 4,473 | 3,847
Revolving Loans | 393 | 346
Revolving Loans Converted to Term Loans | 90 | 48
Loans and leases | 13,936 | 14,421
Commercial: | Commercial real estate | Pass (PD grades 1 through 12) | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 348 | 694
Financing receivable, originated year two | 856 | 1,296
Financing receivable, originated year three | 1,570 | 3,282
Financing receivable, originated year four | 2,832 | 2,778
Financing receivable, originated year five | 2,274 | 894
Financing receivable, originated prior to year five | 3,864 | 3,281
Revolving Loans | 344 | 340
Revolving Loans Converted to Term Loans | 90 | 47
Loans and leases | 12,178 | 12,612
Commercial: | Commercial real estate | Special Mention (PD grade 13) | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 0 | 0
Financing receivable, originated year two | 0 | 42
Financing receivable, originated year three | 8 | 280
Financing receivable, originated year four | 198 | 198
Financing receivable, originated year five | 286 | 37
Financing receivable, originated prior to year five | 129 | 130
Revolving Loans | 43 | 0
Revolving Loans Converted to Term Loans | 0 | 1
Loans and leases | 664 | 688
Commercial: | Commercial real estate | Substandard, Doubtful, or Loss (PD grades 14,15, and 16) | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 3 | 3
Financing receivable, originated year two | 4 | 31
Financing receivable, originated year three | 48 | 251
Financing receivable, originated year four | 381 | 278
Financing receivable, originated year five | 172 | 116
Financing receivable, originated prior to year five | 480 | 436
Revolving Loans | 6 | 6
Revolving Loans Converted to Term Loans | 0 | 0
Loans and leases | $ 1,094 | $ 1,121

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