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Loans and Leases - Additional Information (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable |  |
Unearned income | $ 374 | $ 380
Accrued interest receivable | 549 | 566
Net discount | 206 | 324
Solar energy installation loans |  |
Accounts, Notes, Loans and Financing Receivable |  |
Net discount | 887 | 901
Federal Home Loan Bank Advances |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans pledged | 15,000 | 15,100
FRB Loan |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans pledged | $ 59,500 | $ 55,300

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