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Loans and Leases - Balances Of Commercial Loan Portfolio Classes, Disaggregated By PD Grade (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | $ 58,232 | $ 58,600
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | 33,104 | 33,951
Commercial and industrial | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 9,331 | 2,408
Financing receivable, originated year two | 5,308 | 8,131
Financing receivable, originated year three | 2,812 | 4,717
Financing receivable, originated year four | 1,829 | 2,349
Financing receivable, originated year five | 1,240 | 1,663
Financing receivable, originated prior to year five | 2,267 | 3,213
LMC, Non-Revolving Loans | 5,404 | 5,530
Revolving Loans | 4,793 | 5,872
Revolving Loans converted to term loans | 120 | 68
Total loans, net of unearned income | 33,104 | 33,951
Revolving loans converted to term loan during period | 50 |
Commercial and industrial | PD Grade 1 -12 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 9,060 | 2,368
Financing receivable, originated year two | 5,138 | 7,915
Financing receivable, originated year three | 2,628 | 4,572
Financing receivable, originated year four | 1,748 | 2,174
Financing receivable, originated year five | 1,161 | 1,600
Financing receivable, originated prior to year five | 2,145 | 3,038
LMC, Non-Revolving Loans | 5,404 | 5,530
Revolving Loans | 4,571 | 5,535
Revolving Loans converted to term loans | 60 | 14
Total loans, net of unearned income | 31,915 | 32,746
Commercial and industrial | PD Grade 13 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 89 | 5
Financing receivable, originated year two | 93 | 68
Financing receivable, originated year three | 70 | 65
Financing receivable, originated year four | 31 | 51
Financing receivable, originated year five | 37 | 28
Financing receivable, originated prior to year five | 64 | 81
LMC, Non-Revolving Loans | 0 | 0
Revolving Loans | 127 | 189
Revolving Loans converted to term loans | 1 | 7
Total loans, net of unearned income | 512 | 494
Commercial and industrial | PD Grade 14 15 16 | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 182 | 35
Financing receivable, originated year two | 77 | 148
Financing receivable, originated year three | 114 | 80
Financing receivable, originated year four | 50 | 124
Financing receivable, originated year five | 42 | 35
Financing receivable, originated prior to year five | 58 | 94
LMC, Non-Revolving Loans | 0 | 0
Revolving Loans | 95 | 148
Revolving Loans converted to term loans | 59 | 47
Total loans, net of unearned income | 677 | 711
Commercial real estate | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans, net of unearned income | 12,275 | 12,470
Commercial real estate | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 2,555 | 514
Financing receivable, originated year two | 3,348 | 2,438
Financing receivable, originated year three | 1,888 | 3,400
Financing receivable, originated year four | 1,257 | 1,811
Financing receivable, originated year five | 1,044 | 1,144
Financing receivable, originated prior to year five | 1,887 | 2,818
Revolving Loans | 277 | 345
Revolving Loans converted to term loans | 19 | 0
Total loans, net of unearned income | 12,275 | 12,470
Commercial real estate | PD Grade 1 -12 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 2,477 | 514
Financing receivable, originated year two | 3,311 | 2,346
Financing receivable, originated year three | 1,750 | 3,350
Financing receivable, originated year four | 1,140 | 1,612
Financing receivable, originated year five | 946 | 1,024
Financing receivable, originated prior to year five | 1,800 | 2,652
Revolving Loans | 259 | 320
Revolving Loans converted to term loans | 19 | 0
Total loans, net of unearned income | 11,702 | 11,818
Commercial real estate | PD Grade 13 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 48 | 0
Financing receivable, originated year two | 24 | 74
Financing receivable, originated year three | 117 | 38
Financing receivable, originated year four | 75 | 178
Financing receivable, originated year five | 71 | 77
Financing receivable, originated prior to year five | 54 | 109
Revolving Loans | 0 | 0
Revolving Loans converted to term loans | 0 | 0
Total loans, net of unearned income | 389 | 476
Commercial real estate | PD Grade 14 15 16 | CRE | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, originated year one | 30 | 0
Financing receivable, originated year two | 13 | 18
Financing receivable, originated year three | 21 | 12
Financing receivable, originated year four | 42 | 21
Financing receivable, originated year five | 27 | 43
Financing receivable, originated prior to year five | 33 | 57
Revolving Loans | 18 | 25
Revolving Loans converted to term loans | 0 | 0
Total loans, net of unearned income | $ 184 | $ 176

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