| Current Federal Tax Expense (Benefit) | 605.00M | 2025-01-01 → 2025-12-31 |
| Current State and Local Tax Expense (Benefit) | 154.00M | 2025-01-01 → 2025-12-31 |
| Current Foreign Tax Expense (Benefit) | 25.00M | 2025-01-01 → 2025-12-31 |
| Current Income Tax Expense (Benefit) | 784.00M | 2025-01-01 → 2025-12-31 |
| Deferred Federal Income Tax Expense (Benefit) | 157.00M | 2025-01-01 → 2025-12-31 |
| Deferred State and Local Income Tax Expense (Benefit) | -2.00M | 2025-01-01 → 2025-12-31 |
| Deferred Foreign Income Tax Expense (Benefit) | 2.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 16.00M | 2025-01-01 → 2025-12-31 |
| Derivatives used in Net Investment Hedge, Increase (Decrease), Gross of Tax | 0 | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense | 241.00M | 2025-01-01 → 2025-12-31 |
| Derivative Asset, Not Offset, Policy Election Deduction | 8.08B | as of 2025-12-31 |
| DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement | 255.00M | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 946.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 103.00M | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense, Tax Benefit | 51.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount | 6.00M | 2025-01-01 → 2025-12-31 |
| Derivative Asset, Fair Value of Collateral | 2.80B | as of 2025-12-31 |
| EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmount | 2.00M | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | 183.00M | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Amount | 46.00M | 2025-01-01 → 2025-12-31 |
| Fair Value of Securities Received as Collateral that Can be Resold or Repledged | 2.40B | as of 2025-12-31 |
| Fair Value of Securities Received as Collateral that Have Been Resold or Repledged | 0 | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount | -61.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | -12.00M | 2025-01-01 → 2025-12-31 |
| Securities Borrowed, Gross | 202.00M | as of 2025-12-31 |
| Securities Borrowed, Liability | 0 | as of 2025-12-31 |
| Securities Borrowed, Collateral, Obligation to Return Securities | 130.00M | as of 2025-12-31 |
| Securities Borrowed, Collateral, Obligation to Return Cash | 0 | as of 2025-12-31 |
| Securities Borrowed, Not Offset, Policy Election Deduction | 65.00M | as of 2025-12-31 |
| SecurityBorrowedAfterOffsetAndDeductionSubjectToMasterNettingArrangement | 7.00M | as of 2025-12-31 |
| Dividends, Common Stock, Cash | 614.00M | 2025-01-01 → 2025-12-31 |
| Contract with Customer, Receivable, after Allowance for Credit Loss | 590.00M | as of 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Gross | 13.32B | as of 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Liability | 0 | as of 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Collateral, Obligation to Return Securities | 2.43B | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | 13.00M | 2025-01-01 → 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Collateral, Obligation to Return Cash | 2.49B | as of 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Not Offset, Policy Election Deduction | 8.15B | as of 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | -10.00M | 2025-01-01 → 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed | 13.32B | as of 2025-12-31 |
| Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Amount Offset Against Collateral | 262.00M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year One | 63.00M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Two | 51.00M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Three | 41.00M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Four | 36.00M | as of 2025-12-31 |
| Finite-Lived Intangible Asset, Expected Amortization, Year Five | 29.00M | as of 2025-12-31 |
| Loss Contingency, Undiscounted Amount of Insurance-related Assessment Liability | 13.00M | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Liability | 0 | as of 2025-12-31 |
| Interest-bearing Domestic Deposit, Brokered | 1.95B | as of 2025-12-31 |
| Interest-bearing Domestic Deposit, Checking | 696.00M | as of 2025-12-31 |
| Treasury Stock, Value, Acquired, Cost Method | 2.96B | 2025-01-01 → 2025-12-31 |
| Derivative Liability, Fair Value, Gross Asset | 0 | as of 2025-12-31 |
| Loss Contingency Accrual, Insurance-related Assessment, Premium Tax Offset | 11.00M | as of 2025-12-31 |
| Net Income (Loss) Available to Common Stockholders, Diluted | 3.56B | 2025-01-01 → 2025-12-31 |
| Derivative Liability, Not Offset, Policy Election Deduction | 8.08B | as of 2025-12-31 |
| DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement | 29.00M | as of 2025-12-31 |
| Interest-bearing Domestic Deposit, Savings | 840.00M | as of 2025-12-31 |
| Interest-bearing Domestic Deposit, Certificates of Deposits | 15.00M | as of 2025-12-31 |
| Derivative, Notional Amount | 174.36B | as of 2025-12-31 |
| Interest-bearing Domestic Deposit, Other | 75.00M | as of 2025-12-31 |
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | 2.60B | as of 2025-12-31 |
| Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | 132.00M | 2025-01-01 → 2025-12-31 |
| Securities Loaned, Gross | 244.00M | as of 2025-12-31 |
| Securities Loaned, Asset | 0 | as of 2025-12-31 |
| Securities Loaned, Collateral, Right to Reclaim Securities | 170.00M | as of 2025-12-31 |
| Securities Loaned, Collateral, Right to Reclaim Cash | 0 | as of 2025-12-31 |
| Deferred Tax Assets, Operating Loss Carryforwards, Domestic | 75.00M | as of 2025-12-31 |
| Securities Loaned, Not Offset, Policy Election Deduction | 65.00M | as of 2025-12-31 |
| Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 50.00M | as of 2025-12-31 |
| SecurityLoanedAfterOffsetAndDeductionSubjectToMasterNettingArrangement | 9.00M | as of 2025-12-31 |
| Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 34.00M | as of 2025-12-31 |
| Deferred Tax Assets, Operating Loss Carryforwards | 159.00M | as of 2025-12-31 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | 365.00M | as of 2025-12-31 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | 89.00M | 2025-01-01 → 2025-12-31 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | 350.00M | as of 2025-12-31 |
| Goodwill, Foreign Currency Translation Gain (Loss) | 39.00M | 2025-01-01 → 2025-12-31 |
| Assumed Liability for Unpaid Claims and Claims Adjustment Expense | 333.00M | as of 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Gross | 8.46B | as of 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Asset | 0 | as of 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Securities | 273.00M | as of 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal | 2.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation | 715.00M | as of 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Cash | 3.00M | as of 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Not Offset, Policy Election Deduction | 8.15B | as of 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff | 5.00M | 2025-01-01 → 2025-12-31 |
| FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery | 1.00M | 2025-01-01 → 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned | 8.46B | as of 2025-12-31 |
| Lease, Cost | 70.00M | 2025-01-01 → 2025-12-31 |
| Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Amount Offset Against Collateral | 38.00M | as of 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 50.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross | 195.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year One | 68.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Two | 60.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Three | 52.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Four | 40.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Five | 29.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, after Year Five | 53.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid | 302.00M | as of 2025-12-31 |
| Derivative, Collateral, Right to Reclaim Cash | 3.00M | as of 2025-12-31 |
| Deferred Tax Assets, Other | 200.00M | as of 2025-12-31 |
| Derivative, Collateral, Right to Reclaim Securities | 103.00M | as of 2025-12-31 |
| Derivative, Collateral, Obligation to Return Cash | 2.49B | as of 2025-12-31 |
| Deferred Tax Assets, Gross | 1.79B | as of 2025-12-31 |
| Derivative, Collateral, Obligation to Return Securities | 2.30B | as of 2025-12-31 |
| Deferred Tax Assets, Valuation Allowance | 65.00M | as of 2025-12-31 |
| Deferred Tax Assets, Net of Valuation Allowance | 1.73B | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 26.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Gross | 809.00M | as of 2025-12-31 |
| Deferred Tax Assets, Net | 920.00M | as of 2025-12-31 |
| Insurance Services Revenue | 1.59B | 2025-01-01 → 2025-12-31 |
| OCI, before Reclassifications, Net of Tax, Attributable to Parent | 1.02B | 2025-01-01 → 2025-12-31 |
| Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 2.00M | 2025-01-01 → 2025-12-31 |
| Deferred Tax Liabilities, Goodwill and Intangible Assets | 323.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Other | 153.00M | as of 2025-12-31 |
| Deferred Sale Inducement Cost | 118.00M | as of 2025-12-31 |
| Finite-lived Intangible Assets Acquired | 51.00M | 2025-01-01 → 2025-12-31 |
| Other Commitment | 3.32B | as of 2025-12-31 |
| DeferredIncomeAddition | 127.00M | 2025-01-01 → 2025-12-31 |
| DeferredIncomeRevenueRecognized | 46.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits | 168.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 15.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 20.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 19.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions | 2.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance | 1.85B | as of 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 3.00M | 2025-01-01 → 2025-12-31 |
| AociLiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeTax | -16.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 5.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumIssuance | 210.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumInterestIncome | 92.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumNetPremiumCollected | 360.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumDerecognition | 0 | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange | 1.83B | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance | 9.50B | as of 2025-12-31 |
| AociLiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeTax | 71.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 137.00M | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance | 210.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense | 477.00M | 2025-01-01 → 2025-12-31 |
| Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment | 757.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitDerecognition | 0 | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange | 9.43B | as of 2025-12-31 |
| Liability for Future Policy Benefit, before Reinsurance | 9.31B | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance | 3.79B | as of 2025-12-31 |
| Liability for Future Policy Benefit, after Reinsurance | 3.81B | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitUndiscountedBeforeReinsurance | 15.24B | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumUndiscountedBeforeReinsurance | 6.01B | as of 2025-12-31 |
| LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumDiscountedBeforeReinsurance | 3.95B | as of 2025-12-31 |
| Liability for Future Policy Benefit, Gross Premium Income | 616.00M | 2025-01-01 → 2025-12-31 |
| Liability for Future Policy Benefit, Interest Expense | 385.00M | 2025-01-01 → 2025-12-31 |
| LiabilityForFuturePolicyBenefitRemeasurementGainLoss | -10.00M | 2025-01-01 → 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Domestic | 4.41B | 2025-01-01 → 2025-12-31 |
| Income (Loss) from Continuing Operations before Income Taxes, Foreign | 98.00M | 2025-01-01 → 2025-12-31 |
| AdditionalLiabilityLongDurationInsuranceCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience | 12.00M | as of 2025-12-31 |
| AdditionalLiabilityLongDurationInsuranceIssuance | 144.00M | 2025-01-01 → 2025-12-31 |
| Additional Liability, Long-Duration Insurance, Interest Income (Expense) | -46.00M | 2025-01-01 → 2025-12-31 |
| AdditionalLiabilityLongDurationInsuranceBenefitPayment | 102.00M | 2025-01-01 → 2025-12-31 |
| AdditionalLiabilityLongDurationInsuranceIncreaseDecreaseFromDiscountRateChange | 11.00M | 2025-01-01 → 2025-12-31 |
| Advances from Federal Home Loan Banks | 200.00M | as of 2025-12-31 |
| PolicyholderAccountBalanceIssuance | 4.60B | 2025-01-01 → 2025-12-31 |
| PolicyholderAccountBalancePolicyCharge | 400.00M | 2025-01-01 → 2025-12-31 |
| Transfer to (from) Policyholder Account Balance (to) from Separate Account | -163.00M | 2025-01-01 → 2025-12-31 |
| Market Risk Benefit, Interest Expense | -116.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitAttributedFeeCollected | 761.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitBenefitPayment | 9.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitIssuance | 23.00M | 2025-01-01 → 2025-12-31 |
| Market Risk Benefit, Increase (Decrease) from Equity Market Change | -1.01B | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitIncreaseDecreaseFromFutureExpectedPolicyholderBehaviorAssumption | 68.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitIncreaseDecreaseFromInterestRateChange | -51.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitIncreaseDecreaseFromOtherAssumption | 93.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitIncreaseDecreaseFromVolatility | 90.00M | 2025-01-01 → 2025-12-31 |
| MarketRiskBenefitAssetAmount | 2.27B | as of 2025-12-31 |
| MarketRiskBenefitLiabilityAmount | 1.18B | as of 2025-12-31 |
| Market Risk Benefit, Change in Fair Value, Gain (Loss) | -1.00B | 2025-01-01 → 2025-12-31 |
| Separate Account, Liability, Cash Surrender Value, Amount | 78.20B | as of 2025-12-31 |
| Separate Account, Liability, Premium and Deposit | 1.60B | 2025-01-01 → 2025-12-31 |
| SeparateAccountLiabilityPolicyCharge | 1.64B | 2025-01-01 → 2025-12-31 |
| SeparateAccountLiabilityIncreaseDecreaseFromInvestedPerformance | 10.05B | 2025-01-01 → 2025-12-31 |
| SeparateAccountLiabilityIncreaseDecreaseFromOtherChange | 187.00M | 2025-01-01 → 2025-12-31 |
| Gain (Loss) Recognized on Assets Transferred to Separate Account | 0 | 2025-01-01 → 2025-12-31 |
| Derivative, Net Liability Position, Aggregate Fair Value | 104.00M | as of 2025-12-31 |
| Collateral Already Posted, Aggregate Fair Value | 103.00M | as of 2025-12-31 |
| Additional Collateral, Aggregate Fair Value | 1.00M | as of 2025-12-31 |
| Embedded Derivative, Fair Value of Embedded Derivative, Net | -4.98B | as of 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Policyholder Liabilities | 525.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost | 333.00M | as of 2025-12-31 |
| Derivative Liability, Fair Value, Gross Liability | 8.22B | as of 2025-12-31 |
| Derivative Asset, Fair Value, Gross Asset | 13.12B | as of 2025-12-31 |