| Current Federal Tax Expense (Benefit) | 1.35B | 2025-01-01 → 2025-12-31 |
| Current State and Local Tax Expense (Benefit) | 173.00M | 2025-01-01 → 2025-12-31 |
| Current Foreign Tax Expense (Benefit) | 10.00M | 2025-01-01 → 2025-12-31 |
| Current Income Tax Expense (Benefit) | 1.53B | 2025-01-01 → 2025-12-31 |
| Deferred Federal Income Tax Expense (Benefit) | -6.00M | 2025-01-01 → 2025-12-31 |
| Deferred State and Local Income Tax Expense (Benefit) | -36.00M | 2025-01-01 → 2025-12-31 |
| Deferred Foreign Income Tax Expense (Benefit) | 2.00M | 2025-01-01 → 2025-12-31 |
| Dividends, Preferred Stock, Cash | 308.00M | 2025-01-01 → 2025-12-31 |
| Participating Securities, Distributed and Undistributed Earnings (Loss), Basic | 43.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 1.78B | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 198.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount | -12.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount | 84.00M | 2025-01-01 → 2025-12-31 |
| Fair Value of Securities Received as Collateral that Can be Resold or Repledged | 759.00M | as of 2025-12-31 |
| Fair Value of Securities Received as Collateral that Have Been Resold or Repledged | 759.00M | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | -39.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Contingency, Amount | -69.00M | 2025-01-01 → 2025-12-31 |
| Dividends, Common Stock, Cash | 2.63B | 2025-01-01 → 2025-12-31 |
| Accrued Liabilities and Other Liabilities | 14.15B | as of 2025-12-31 |
| Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset | 700.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount | 93.00M | 2025-01-01 → 2025-12-31 |
| TimeDepositLiabilityAboveUsInsuranceLimit | 9.90B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Realized Gain | 32.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Available-for-sale, Realized Loss | 41.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Available-for-sale, Realized Gain (Loss) | -9.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Available-for-sale, Gain (Loss) | -9.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | -21.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount | 0 | 2025-01-01 → 2025-12-31 |
| Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 531.00M | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 20.78B | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 14.07B | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 | 34.51B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Liability | 1.16B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Asset | 1.16B | as of 2025-12-31 |
| Net Income (Loss) Available to Common Stockholders, Diluted | 6.58B | 2025-01-01 → 2025-12-31 |
| Derivative, Notional Amount | 714.04B | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 528.00M | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 20.85B | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 14.02B | as of 2025-12-31 |
| Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 32.74B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 5.00M | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 2.36B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 2.37B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 621.00M | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 2.38B | as of 2025-12-31 |
| Time Deposit Maturities, Year One | 33.60B | as of 2025-12-31 |
| Time Deposit Maturities, Year Two | 200.00M | as of 2025-12-31 |
| Time Deposit Maturities, Year Three | 100.00M | as of 2025-12-31 |
| Time Deposit Maturities, Year Four | 0 | as of 2025-12-31 |
| Time Deposit Maturities, Year Five | 0 | as of 2025-12-31 |
| Time Deposit Maturities, after Year Five | 100.00M | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 644.00M | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 22.09B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Unrealized Loss Position | 22.73B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Amount Offset Against Collateral | 944.00M | as of 2025-12-31 |
| Derivative Liability, Fair Value, Amount Offset Against Collateral | 1.70B | as of 2025-12-31 |
| Goodwill, Other Increase (Decrease) | 27.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 2.53B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 403.00M | as of 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal | 660.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Held-to-maturity, Derivative, Cumulative Loss | 229.00M | as of 2025-12-31 |
| Unrecorded Unconditional Purchase Obligation | 318.00M | as of 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff | 1.18B | 2025-01-01 → 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery | 432.00M | 2025-01-01 → 2025-12-31 |
| Operating Lease, Cost | 366.00M | 2025-01-01 → 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery | 744.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits | 312.00M | as of 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses | 1.07B | as of 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 431.00M | 2025-01-01 → 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne | 10.14B | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive | 10.51B | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10 | 3.97B | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10 | 45.48B | as of 2025-12-31 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | 256.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities | 65.00M | as of 2025-12-31 |
| Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 10.11B | as of 2025-12-31 |
| Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 10.40B | as of 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other | 201.00M | as of 2025-12-31 |
| Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 | 3.90B | as of 2025-12-31 |
| Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 43.57B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year One | 393.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Two | 369.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Three | 327.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Four | 265.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Five | 211.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, after Year Five | 601.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid | 2.17B | as of 2025-12-31 |
| Deferred Tax Assets, Other | 238.00M | as of 2025-12-31 |
| Derivative, Collateral, Right to Reclaim Securities | 29.00M | as of 2025-12-31 |
| Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 743.00M | as of 2025-12-31 |
| Financing Receivable, Troubled Debt Restructuring, Commitment to Lend | 1.00B | as of 2025-12-31 |
| Deferred Tax Assets, Gross | 3.52B | as of 2025-12-31 |
| Derivative, Collateral, Obligation to Return Securities | 76.00M | as of 2025-12-31 |
| Deferred Tax Assets, Valuation Allowance | 24.00M | as of 2025-12-31 |
| Derivative Asset, Collateral, Obligation to Return Cash, Offset | 494.00M | as of 2025-12-31 |
| Deferred Tax Assets, Net of Valuation Allowance | 3.50B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 233.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Gross | 2.68B | as of 2025-12-31 |
| Deferred Tax Assets, Net | 814.00M | as of 2025-12-31 |
| Property Subject to or Available for Operating Lease, Accumulated Depreciation | 200.00M | as of 2025-12-31 |
| DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss | 66.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Mortgage Servicing Rights | 424.00M | as of 2025-12-31 |
| Other Liabilities, Fair Value Disclosure | 100.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Leasing Arrangements | 798.00M | as of 2025-12-31 |
| Debt and Equity Securities, Gain (Loss) | -9.00M | 2025-01-01 → 2025-12-31 |
| Sales-type and Direct Financing Leases, Interest Income | 350.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Liabilities, Goodwill and Intangible Assets | 246.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Other | 455.00M | as of 2025-12-31 |
| Other Commitment | 326.16B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year One | 11.71B | as of 2025-12-31 |
| Defined Contribution Plan, Cost | 184.00M | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year Two | 12.27B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Three | 6.44B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Four | 4.68B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Five | 3.67B | as of 2025-12-31 |
| Long-Term Debt, Maturity, after Year Five | 18.32B | as of 2025-12-31 |
| Off-Balance Sheet, Credit Loss, Liability | 818.00M | as of 2025-12-31 |
| Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) | 97.00M | 2025-01-01 → 2025-12-31 |
| AssetsAverageOutstanding | 566.47B | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits | 270.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 2.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 7.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 40.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 64.00M | 2025-01-01 → 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year One | 1.71B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Two | 1.68B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Three | 1.18B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Four | 826.00M | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Five | 733.00M | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, after Year Five | 516.00M | as of 2025-12-31 |
| Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received | 6.64B | as of 2025-12-31 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 243.00M | as of 2025-12-31 |
| Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount | 24.38B | as of 2025-12-31 |
| Other Comprehensive Income, Other, Net of Tax | -6.00M | 2025-01-01 → 2025-12-31 |
| Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 1.94B | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year One | 28.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Two | 25.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Three | 16.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Four | 12.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Five | 8.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, after Year Five | 3.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payments to be Received | 92.00M | as of 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Domestic | 8.38B | 2025-01-01 → 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Foreign | 108.00M | 2025-01-01 → 2025-12-31 |
| Advances from Federal Home Loan Banks | 13.00B | as of 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance | 600.00M | as of 2025-12-31 |
| Derivative, Net Liability Position, Aggregate Fair Value | 2.30B | as of 2025-12-31 |
| Collateral Already Posted, Aggregate Fair Value | 800.00M | as of 2025-12-31 |
| Additional Collateral, Aggregate Fair Value | 1.50B | as of 2025-12-31 |
| Financing Receivable, Deferred Commitment Fee | 1.10B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Liability | 3.63B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Asset | 2.67B | as of 2025-12-31 |
| Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval | 8.40B | as of 2025-12-31 |