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Loans and Leases - Balances of Commercial Loan Portfolio Classes, Disaggregated by PD Grade (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | $ 62,215 | $ 62,565
Commercial: | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 757 | 5,780
Financing receivable, originated year two | 5,985 | 2,818
Financing receivable, originated year three | 2,710 | 3,840
Financing receivable, originated year four | 3,656 | 2,562
Financing receivable, originated year five | 2,343 | 1,121
Financing receivable, originated prior to year five | 4,984 | 4,079
LMC | 3,369 | 3,471
Revolving Loans | 9,299 | 9,446
Revolving Loans Converted to Term Loans | 251 | 311
Loans and leases | 33,354 | 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 | 756 | 5,590
Financing receivable, originated year two | 5,804 | 2,607
Financing receivable, originated year three | 2,525 | 3,649
Financing receivable, originated year four | 3,344 | 2,336
Financing receivable, originated year five | 2,127 | 1,055
Financing receivable, originated prior to year five | 4,674 | 3,853
LMC | 3,369 | 3,471
Revolving Loans | 8,744 | 8,784
Revolving Loans Converted to Term Loans | 211 | 248
Loans and leases | 31,554 | 31,593
Commercial: | Commercial and industrial | Special Mention (PD grade 13) |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 0 | 106
Financing receivable, originated year two | 72 | 27
Financing receivable, originated year three | 25 | 78
Financing receivable, originated year four | 82 | 47
Financing receivable, originated year five | 55 | 33
Financing receivable, originated prior to year five | 69 | 57
LMC | 0 | 0
Revolving Loans | 193 | 279
Revolving Loans Converted to Term Loans | 6 | 2
Loans and leases | 502 | 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 | 1 | 84
Financing receivable, originated year two | 109 | 184
Financing receivable, originated year three | 160 | 113
Financing receivable, originated year four | 230 | 179
Financing receivable, originated year five | 161 | 33
Financing receivable, originated prior to year five | 241 | 169
LMC | 0 | 0
Revolving Loans | 362 | 383
Revolving Loans Converted to Term Loans | 34 | 61
Loans and leases | 1,298 | 1,206
Commercial: | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases | 14,139 | 14,421
Commercial: | Commercial real estate | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 160 | 697
Financing receivable, originated year two | 756 | 1,369
Financing receivable, originated year three | 1,466 | 3,813
Financing receivable, originated year four | 3,684 | 3,254
Financing receivable, originated year five | 3,031 | 1,047
Financing receivable, originated prior to year five | 4,632 | 3,847
Revolving Loans | 353 | 346
Revolving Loans Converted to Term Loans | 57 | 48
Loans and leases | 14,139 | 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 | 160 | 694
Financing receivable, originated year two | 753 | 1,296
Financing receivable, originated year three | 1,391 | 3,282
Financing receivable, originated year four | 3,179 | 2,778
Financing receivable, originated year five | 2,457 | 894
Financing receivable, originated prior to year five | 3,990 | 3,281
Revolving Loans | 304 | 340
Revolving Loans Converted to Term Loans | 57 | 47
Loans and leases | 12,291 | 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 | 42 | 280
Financing receivable, originated year four | 172 | 198
Financing receivable, originated year five | 267 | 37
Financing receivable, originated prior to year five | 121 | 130
Revolving Loans | 43 | 0
Revolving Loans Converted to Term Loans | 0 | 1
Loans and leases | 645 | 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 | 0 | 3
Financing receivable, originated year two | 3 | 31
Financing receivable, originated year three | 33 | 251
Financing receivable, originated year four | 333 | 278
Financing receivable, originated year five | 307 | 116
Financing receivable, originated prior to year five | 521 | 436
Revolving Loans | 6 | 6
Revolving Loans Converted to Term Loans | 0 | 0
Loans and leases | $ 1,203 | $ 1,121

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