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v3.23.1

Loans and Allowance for Loan Losses (Narrative) (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Interest income on non-accrual loans outstanding | $ 3,300,000 | $ 3,400,000 |  |
Interest income, cash basis method | 1,700,000 | 554,000 |  |
Total loans | 44,044,939,000 |  | $ 43,716,353,000 |
Allowance for loan losses | 457,010,000 | 414,956,000 | 443,424,000 | $ 427,597,000
Reserve for unfunded commitments | 57,500,000 |  | 57,500,000 |
All financing receivable, allowance for credit loss | 514,500,000 |  | $ 500,900,000 |
Allowance for credit loss, increase (decrease) | $ 13,600,000 |  |  |
ACL to loans ratio | 1.17% |  | 1.15% |
Allowance for credit loss, reasonable and supportable forecast period | 2 years |  |  |
Allowance for credit loss, straight-line basis historical period | 1 year |  |  |
Allowance for credit loss, measurement input, estimated peak weighted average unemployment rate | 5.30% |  | 5.10% |
Commitments to land additional funds to TDRs |  |  | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default | $ 0 |  |  |
Total consumer |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Charge-off of previously established reserves for credit losses associated with the transfer to held for sale | (6,600,000) |  |  |
Reclassification to held-for-sale | 424,100,000 |  |  |
Allowance for loan losses | $ 137,930,000 | $ 141,538,000 | 138,299,000 | $ 141,473,000
Substandard |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Retail loan substandard period (in days) | 90 days |  |  |
Loss |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Retail loan charge off (in days) | 120 days |  |  |
Asset Pledged as Collateral |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans | $ 18,610,000,000 |  | $ 16,090,000,000.00 |

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