v3.25.4
Income Taxes (Income Tax Rate Reconciliation) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Taxes [Abstract]      
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate $ 576 $ 494 $ 547
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 21.00% 21.00% 21.00%
Increase (decrease) in taxes resulting from: [Abstract]      
State income tax, net of federal tax effect $ 55 $ 60 $ 69
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent 2.00% 2.60% 2.70%
Affordable housing investment amortization, net of tax benefits (excluding Tax Reform) $ (36) $ (48) $ (41)
Effective Income Tax Rate Reconciliation, Tax Credit, Percent (1.30%) (1.90%) (1.60%)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount $ (6) $ (5) $ (13)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent (0.30%) (0.40%) (0.40%)
Tax-exempt interest $ (40) $ (39) $ (38)
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent (1.40%) (1.70%) (1.50%)
Non-deductible expenses $ 23 $ 23 $ 22
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent 0.80% 1.00% 0.80%
Bank-owned life insurance $ (22) $ (24) $ (19)
Effective Income Tax Rate Reconciliation, Bank-Owned Life Insurance, Percentage (0.008) (0.010) (0.007)
Other, net $ 1 $ (2) $ 3
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent (0.10%) (0.10%) (0.10%)
Income Tax Reconciliation Change in UTB $ 36 $ 2 $ 3
Effective Income Tax Rate Reconciliation Change in UTBs 0.013 0.001 0.001
Income tax expense $ 587 $ 461 $ 533
Effective Income Tax Rate, Continuing Operations 21.40% 19.60% 20.50%
Income Tax Paid, by Individual Jurisdiction [Line Items]      
Tax Jurisdiction of Domicile [Extensible Enumeration] UNITED STATES UNITED STATES UNITED STATES
Variable Interest Entity, Not Primary Beneficiary | Tax Credit Investments      
Income Tax Paid, by Individual Jurisdiction [Line Items]      
Tax credit amortization expense included in provision for income taxes $ 193 $ 188 $ 166