| Life Insurance, Corporate or Bank Owned, Amount | 19.76B | as of 2025-12-31 |
| Current Federal Tax Expense (Benefit) | 5.06B | 2025-01-01 → 2025-12-31 |
| Current State and Local Tax Expense (Benefit) | 231.00M | 2025-01-01 → 2025-12-31 |
| Current Foreign Tax Expense (Benefit) | 420.00M | 2025-01-01 → 2025-12-31 |
| Current Income Tax Expense (Benefit) | 5.71B | 2025-01-01 → 2025-12-31 |
| Deferred Federal Income Tax Expense (Benefit) | -1.67B | 2025-01-01 → 2025-12-31 |
| Deferred State and Local Income Tax Expense (Benefit) | -157.00M | 2025-01-01 → 2025-12-31 |
| Deferred Foreign Income Tax Expense (Benefit) | -43.00M | 2025-01-01 → 2025-12-31 |
| Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization | 11.39B | as of 2025-12-31 |
| Professional and Contract Services Expense | 4.54B | 2025-01-01 → 2025-12-31 |
| Other Assets, Miscellaneous | 15.58B | as of 2025-12-31 |
| DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement | 17.84B | as of 2025-12-31 |
| Derivative Asset, Not Subject to Master Netting Arrangement | 3.97B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement | 84.53B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset | 62.72B | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 5.29B | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 563.00M | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense, Tax Benefit | 365.00M | 2025-01-01 → 2025-12-31 |
| EffectiveIncomeTaxRateReconciliationTaxCreditEnergyRelatedAmount | 588.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount | 154.00M | 2025-01-01 → 2025-12-31 |
| Fair Value of Securities Received as Collateral that Can be Resold or Repledged | 469.20B | as of 2025-12-31 |
| Fair Value of Securities Received as Collateral that Have Been Resold or Repledged | 309.30B | as of 2025-12-31 |
| Compensation Expense, Excluding Cost of Good and Service Sold | 36.28B | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | -25.00M | 2025-01-01 → 2025-12-31 |
| Time Deposits, at or Above FDIC Insurance Limit | 41.44B | as of 2025-12-31 |
| Deconsolidation, Gain (Loss), Amount | 146.00M | 2025-01-01 → 2025-12-31 |
| Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount | 101.00M | 2025-01-01 → 2025-12-31 |
| Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset | 1.45B | 2025-01-01 → 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 | 176.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Available-for-sale, Realized Gain (Loss) | -144.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount | -751.00M | 2025-01-01 → 2025-12-31 |
| FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing | 3.00B | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 118.00M | 2025-01-01 → 2025-12-31 |
| Guarantor Obligations, Maximum Exposure, Undiscounted | 145.63B | as of 2025-12-31 |
| Guarantor Obligations, Current Carrying Value | 263.00M | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Liability | 57.96B | as of 2025-12-31 |
| DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement | 9.41B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Asset | 57.78B | as of 2025-12-31 |
| Derivative Liability, Not Subject to Master Netting Arrangement | 4.21B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement | 86.96B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset | 73.33B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value | 3.20B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 12.16B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value | 47.50B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | 150.71B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 1.86B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 3.99B | as of 2025-12-31 |
| Time Deposit Maturities, Year One | 158.38B | as of 2025-12-31 |
| Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain (Loss), before Tax | -2.20B | as of 2025-12-31 |
| Time Deposit Maturities, Year Two | 4.22B | as of 2025-12-31 |
| Time Deposit Maturities, Year Three | 3.05B | as of 2025-12-31 |
| Time Deposit Maturities, Year Four | 701.00M | as of 2025-12-31 |
| Time Deposit Maturities, Year Five | 64.00M | as of 2025-12-31 |
| Time Deposit Maturities, after Year Five | 270.00M | as of 2025-12-31 |
| Derivative Credit Risk Valuation Adjustment, Derivative Assets | 286.00M | as of 2025-12-31 |
| Derivative Credit Risk Valuation Adjustment, Derivative Liabilities | 200.00M | as of 2025-12-31 |
| Goodwill, Written off Related to Sale of Business Unit | 206.00M | 2025-01-01 → 2025-12-31 |
| Goodwill, Foreign Currency Translation Gain (Loss) | 6.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | 32.41B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain | 189.00M | as of 2025-12-31 |
| Unrecorded Unconditional Purchase Obligation | 150.00M | as of 2025-12-31 |
| Operating Lease, Cost | 968.00M | 2025-01-01 → 2025-12-31 |
| Variable Lease, Cost | 271.00M | 2025-01-01 → 2025-12-31 |
| Lease, Cost | 1.18B | 2025-01-01 → 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year One | 898.00M | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingWithinOneYear | 127.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Two | 923.00M | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYears | 2.29B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Three | 781.00M | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingAfter5Through10Years | 4.91B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Four | 593.00M | as of 2025-12-31 |
| DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingAfter10Years | 200.69B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Five | 447.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, after Year Five | 1.10B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid | 4.75B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value | 129.00M | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value | 2.30B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value | 4.92B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value | 168.45B | as of 2025-12-31 |
| Derivative, Collateral, Right to Reclaim Securities | 3.09B | as of 2025-12-31 |
| Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 15.55B | as of 2025-12-31 |
| Derivative, Collateral, Obligation to Return Securities | 4.91B | as of 2025-12-31 |
| Deferred Tax Assets, Valuation Allowance | 314.00M | as of 2025-12-31 |
| Derivative Asset, Collateral, Obligation to Return Cash, Offset | 4.76B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 585.00M | as of 2025-12-31 |
| Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding | 3.08B | as of 2025-12-31 |
| Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss), Excluding Other-than-temporary Impairment | 0 | 2025-01-01 → 2025-12-31 |
| Sales-type and Direct Financing Leases, Lease Receivable | 14.72B | as of 2025-12-31 |
| DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue | 389.37B | as of 2025-12-31 |
| Property Subject to or Available for Operating Lease, Accumulated Depreciation | 2.90B | as of 2025-12-31 |
| DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain | 2.05B | as of 2025-12-31 |
| Property Subject to or Available for Operating Lease, Net | 5.00B | as of 2025-12-31 |
| DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss | 36.41B | as of 2025-12-31 |
| Net Credit Loss on Loans Managed or Securitized or Asset-backed Financing Arrangement | 10.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal) | 1.00M | 2025-01-01 → 2025-12-31 |
| Debt Securities, Held-to-maturity, Purchase | 216.00M | 2025-01-01 → 2025-12-31 |
| Sales-type and Direct Financing Leases, Interest Income | 947.00M | 2025-01-01 → 2025-12-31 |
| Variable Lease, Income | 91.00M | 2025-01-01 → 2025-12-31 |
| Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease | 374.00M | 2025-01-01 → 2025-12-31 |
| Undistributed Earnings of Foreign Subsidiaries | 0 | as of 2025-12-31 |
| Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | -141.00M | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year One | 23.47B | as of 2025-12-31 |
| Defined Contribution Plan, Cost | 1.00B | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year Two | 13.32B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Three | 26.37B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Four | 19.17B | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Five | 12.14B | as of 2025-12-31 |
| Long-Term Debt, Maturity, after Year Five | 80.24B | as of 2025-12-31 |
| Off-Balance Sheet, Credit Loss, Liability | 540.00M | as of 2025-12-31 |
| AssetsAverageOutstanding | 1.99T | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits | 2.53B | as of 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 10.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 742.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 184.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 2.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 27.00M | 2025-01-01 → 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year One | 4.43B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Two | 3.54B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Three | 2.53B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Four | 1.55B | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Five | 979.00M | as of 2025-12-31 |
| Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, after Year Five | 1.69B | as of 2025-12-31 |
| Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received | 14.72B | as of 2025-12-31 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 1.70B | as of 2025-12-31 |
| Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 4.48B | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year One | 93.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Two | 77.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Three | 57.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Four | 40.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, Year Five | 29.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payment to be Received, after Year Five | 42.00M | as of 2025-12-31 |
| Lessor, Operating Lease, Payments to be Received | 338.00M | as of 2025-12-31 |
| Residual Value of Leased Asset | 3.08B | as of 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Domestic | 23.64B | 2025-01-01 → 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Foreign | 1.55B | 2025-01-01 → 2025-12-31 |
| Leveraged Leases, Balance Sheet, Investment in Leveraged Leases, Net | 274.00M | as of 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | -1.21B | as of 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 867.00M | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 8.00M | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 4.00M | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | -760.00M | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | -360.00M | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | -2.32B | 2025-01-01 → 2025-12-31 |
| Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) | 374.00M | 2025-01-01 → 2025-12-31 |
| Credit Derivative, Maximum Exposure, Undiscounted | 18.78B | as of 2025-12-31 |
| Financing Receivable, Nonaccrual, Interest Income | 263.00M | 2025-01-01 → 2025-12-31 |
| Derivative, Net Liability Position, Aggregate Fair Value | 26.30B | as of 2025-12-31 |
| Collateral Already Posted, Aggregate Fair Value | 22.70B | as of 2025-12-31 |
| Additional Collateral, Aggregate Fair Value | 3.70B | as of 2025-12-31 |
| Unused Commitments to Extend Credit | 666.74B | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Liability | 82.75B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Asset | 80.56B | as of 2025-12-31 |
| Financial Assets Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement | 322.48B | as of 2025-12-31 |
| Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred | 7.56B | as of 2025-12-31 |
| Securities Loaned and Securities Sold under Agreement to Repurchase, Gross Including Not Subject to Master Netting Arrangement | 330.04B | as of 2025-12-31 |