Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Consolidated net worth percentage Debt Instrument, Consolidated Net Worth Percentage Debt Instrument, Consolidated Net Worth Percentage Hotel Hotel [Member] Trading Arrangement: Trading Arrangement [Axis] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Freestanding derivative assets Offsetting Derivative Assets [Abstract] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Carrying 
Value Reported Value Measurement [Member] Net income (loss) attributable to Jackson Financial Inc. common shareholders, Diluted Net Income (Loss) Available to Common Stockholders, Diluted Net Fair Value, Asset (Liability) Net fair value, derivative asset (liability) Net fair value, derivative asset Derivative Assets (Liabilities), at Fair Value, Net Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Charge offs, net of recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) Adjustment to Compensation, Amount Adjustment to Compensation Amount Schedule of Policyholder Account Balance Policyholder Account Balance [Table Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Derivative asset, pledged collateral Derivative Asset, Pledged Collateral Derivative Asset, Pledged Collateral Derivative deferred premium payable Derivative Deferred Premium Contract [Member] Derivative Deferred Premium Contract Separate Account Asset Category [Axis] Separate Account Asset Category [Axis] Less: Reinsurance recoverable Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance Securities loaned, minimum percent of fair value required as collateral Securities Loaned, Minimum Fair Value Collateral Percent Securities Loaned, Minimum Fair Value Collateral Percent Aggregate fair value of securities sold at a loss, percentage of book value Aggregate Fair Value Of Securities Sold At A Loss, Percentage Of Book Value Aggregate Fair Value Of Securities Sold At A Loss, Percentage Of Book Value Reinsurance agreement, ceding commission Reinsurance Agreement, Ceding Commission Reinsurance Agreement, Ceding Commission Derivative liabilities, held collateral Derivative Liability, Fair Value of Collateral Schedule of Debt Securities in Continuous Unrealized Loss Position Schedule Of Debt Securities In Continuous Unrealized Loss Position [Table Text Block] Schedule Of Debt Securities In Continuous Unrealized Loss Position Separate account assets Separate account assets Separate Account Asset Total investment income excluding funds withheld assets Gross Investment Income (Loss) Gross Investment Income (Loss) Debt securities Payments To Acquire Debt Securities Payments To Acquire Debt Securities Derivative Instrument [Axis] Derivative Instrument [Axis] Interest accretion rate Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate Reserves for future policy benefits and claims payable Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense Consolidated Entities [Axis] Consolidated Entities [Axis] Average Price Paid Per Share (in usd per share) Shares Acquired, Average Cost Per Share Net Amounts Presented in the Condensed Consolidated Balance Sheets Securities Sold under Agreements to Repurchase, Collateral Upgrade Securities Sold under Agreements to Repurchase, Collateral Upgrade Due after 10 years through 20 years Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Ten Through Year Twenty Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Ten Through Year Twenty Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 80% - 100% Debt-to-Value Ratio, 80 to 100 Percent [Member] Without single maturity Debt Securities, Maturity, Without Single Maturity Date, Amortized Cost Debt Securities, Maturity, Without Single Maturity Date, Amortized Cost AA NRSRO, AA Rating [Member] NRSRO, AA Rating The Revolving Credit Facility Terminating February 2028 The Revolving Credit Facility Terminating February 2028 [Member] The Revolving Credit Facility Terminating February 2028 Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Fee income Fee income Fee Income Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Investment management arrangement, term Investment Management Arrangement, Term Investment Management Arrangement, Term Consolidated Entities [Domain] Consolidated Entities [Domain] Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Net amount at risk Market Risk Benefit, Net Amount at Risk Schedule of Mortgage Loans Identified to Borrowers Experiencing Financial Difficulty Financing Receivable, Modified [Table Text Block] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Security Loaned, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Amortization of discount and premium on investments Accretion (Amortization) of Discounts and Premiums, Investments Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Pretax income (loss) attributable to Jackson Financial Inc. Income (Loss) Attributable to Parent, before Tax Number of reportable segments Number of Reportable Segments Policyholders' account balances: Net Change Contract Holders Funds [Abstract] 12 months or longer, gross unrealized losses Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer, Accumulated Loss Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer, Accumulated Loss Schedule of Aggregate Contractual Notional Amounts and Fair Values of Derivatives Schedule of Derivative Instruments [Table Text Block] Schedule of Balances of Level 3 Assets and Liabilities Measured at Fair Value with Corresponding Pricing Sources Disclosure Of Level 3 Assets And Liabilities Measured At Fair Value With Corresponding Pricing Sources [Table Text Block] Disclosure Of Level 3 Assets And Liabilities Measured At Fair Value With Corresponding Pricing Sources Repurchase agreements Securities Sold under Agreements to Repurchase [Member] Entity Address, City or Town Entity Address, City or Town Net Amounts Presented in the Condensed Consolidated Balance Sheets Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned Gross Unrealized Gains Debt Securities, Maturity, Allocated and Single Maturity Date, Gross Unrealized Gains [Abstract] Debt Securities, Maturity, Allocated and Single Maturity Date, Gross Unrealized Gains Depositary Shares Depositary Shares [Member] Depositary Shares Beginning of period cumulative effect of changes in discount rate assumptions End of period cumulative effect of changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax Due in 1 year or less Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, Year One Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, Year One Reinsurance recoverable on market risk benefits, at fair value Reinsurance recoverable on market risk benefits at fair value, end of period Market Risk Benefit, Reinsurance Recoverable, after Allowance Other Product Lines Other Product Lines [Member] Other Product Lines Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Statement of Financial Position [Abstract] Funds Withheld Reinsurance Assets Policy loans Funds Withheld Reinsurance Assets [Member] Funds Withheld Reinsurance Assets Market risk benefit liabilities, at fair value Market risk benefit liabilities Market risk benefit - liabilities Market Risk Benefit, Liability, Amount Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Not rated securities External Credit Rating, Not Rated [Member] External Credit Rating, Not Rated Weighted average attained age (years) Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] BB NRSRO, BB Rating [Member] NRSRO, BB Rating Total other comprehensive income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 90 Days or Greater Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Net premiums collected Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected Subsequent Event Type [Axis] Subsequent Event Type [Axis] Net gains (losses) on derivatives and investments Net gains (losses) on hedging instruments and investments Net unrealized gain (loss) Gain (Loss) On Investments And Derivative Instruments Gain (Loss) On Investments And Derivative Instruments Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Benefits payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment Class of Treasury Stock [Table] Class of Treasury Stock [Table] Investment Income [Table] Investment Income [Table] Schedule of Certain Information with Respect to Segments Segment Reporting [Table Text Block] Derivative claim Derivative Claim Derivative Claim Securities loaned, cash collateral Securities Loaned, Fair Value of Collateral Use of Estimates Use of Estimates, Policy [Policy Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Lapse Measurement Input, Lapse Rate [Member] Schedule of Rollforwards of Financial Instruments for Which Significant Unobservable Inputs (Level 3) are Used - Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Reductions for mortgages disposed Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Loan Sold Prime Prime [Member] Aggregate fair value of securities sold at a loss Aggregate Fair Value Of Securities Sold At A Loss Aggregate Fair Value Of Securities Sold At A Loss External Credit Rating by Grouping [Domain] External Credit Rating by Grouping [Domain] Mortgage loans, allowance for credit loss Beginning Balance Ending Balance ACL Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Policy charges and other Policyholder Account Balance, Policy Income (Charge) Policyholder Account Balance, Policy Income (Charge) Document Period End Date Document Period End Date Other government securities Other government securities Other Government Debt Securities [Member] Other Government Debt Securities Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Debt face amount Debt Instrument, Face Amount Debt instrument, term Debt Instrument, Term Realized losses on sale Realized losses on sale Debt Securities, Available-for-Sale, Realized Loss Schedule of Reconciliation of Segment Operating Benefits and Expenses to Total Benefits and Expenses Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block] Schedule of Reconciliation of Segment Operating Revenues to Total Revenues Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block] Treasury stock, at cost; 28,039,973 and 27,662,683 shares at September 30, 2026 and December 31, 2025, respectively Treasury Stock, Common, Value Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reinsurance recoverable on market risk benefits Reinsurance Recoverable Including Reinsurance Premium Paid [Member] Outstanding repurchase agreement balance Net Amounts Presented in the Condensed Consolidated Balance Sheets Securities Sold under Agreements to Repurchase Market risk benefit - net (asset) liability Net MRB balance, beginning of period Net MRB balance, end of period, gross Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk Accumulated other comprehensive income (loss), net of tax expense (benefit) of $(340) and $(377) at September 30, 2026 and December 31, 2025, respectively Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Total Realized/Unrealized Gains (Losses) Included in Net Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Percent of Total Class Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Amortization of DAC associated with non-operating items at date of transition to LDTI DAC And DSI Impact DAC And DSI Impact Consolidated investments Income (Loss) On Consolidated Investments Income (Loss) On Consolidated Investments Earnings Per Share Earnings Per Share [Text Block] Earnings per share Earnings Per Share [Abstract] Earnings Per Share [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] External External Pricing Source [Member] External Pricing Source Total liabilities Liabilities Trading Symbol Trading Symbol Due after 1 year through 5 years Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year One Through Five Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year One Through Five Debt Securities, available-for-sale, net of allowance for credit losses of $4 and $11 at September 30, 2026 and December 31, 2025, respectively (amortized cost: 2026 $60,186; 2025 $50,491) Debt Securities, Available-for-Sale, Excluding Accrued Interest Market risk benefit assets, at fair value Market risk benefit assets Market risk benefit - (assets) Market Risk Benefit, Asset, Amount Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Credit Rating, NRSRO [Axis] Credit Rating, NRSRO [Axis] Credit Rating, NRSRO Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Total Realized/Unrealized Gains (Losses) Included in Other Comprehensive Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Income Tax Disclosure [Abstract] Change in current discount rate related to reserve for future policy benefits, net of tax expense (benefit) OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax Medium-Term Note Medium-Term Note [Member] Net gains (losses) on funds withheld reinsurance treaties Net gains (losses) on funds withheld reinsurance treaties Gain (Loss) On Funds Withheld, Reinsurance Treaties Gain (Loss) On Funds Withheld, Reinsurance Treaties Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Unpaid principal balance Financing Receivable, Impaired, Unpaid Principal Balance Financing Receivable, Impaired, Unpaid Principal Balance Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Credit Facility [Domain] Credit Facility [Domain] Due after 1 year through 5 years Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year One Through Year Five Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year One Through Year Five Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Nonaccrual Loans Financing Receivable, Nonaccrual (Gain) loss from updating future policy benefits cash flow assumptions, net (Gain) loss from updating future policy benefits cash flow assumptions, net (Gain) loss from updating future policy benefits cash flow assumptions, net Liability for Future Policy Benefit, Remeasurement Gain (Loss) Cross-currency swaps Cross Currency Interest Rate Contract [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Reserves for future policy benefits and claims payable Policyholder Account Balance, Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense Policyholder Account Balance, Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense Effect of changes in cash flow assumptions Additional Liability, Increase (Decrease) from Cash Flow Assumption Additional Liability, Increase (Decrease) from Cash Flow Assumption Schedule of Sources of Net Investment Income Schedule of Sources of Income Related to Funds Withheld Under Reinsurance Treaties Investment Income [Table Text Block] Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Other Contract Holder Funds Market Risk Benefits Long-Duration Insurance Contracts Disclosure [Text Block] 4.000% Senior Notes due 2051 Senior Notes Due 2051 [Member] Senior Notes Due 2051 Net Amount Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Dilutive common shares (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Schedule of Rollforwards of Financial Instruments for Which Significant Unobservable Inputs (Level 3) are Used - Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Institutional Products Institutional Products [Member] Institutional Products Fixed index annuity embedded derivatives Fixed Index Annuity Embedded Derivative [Member] Fixed Index Annuity Embedded Derivative Due after 5 years through 10 years Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Other assets and liabilities, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Share repurchase program, increase in authorized amount Stock Repurchase Program , Increase (Decrease) In Authorized Amount Stock Repurchase Program , Increase (Decrease) In Authorized Amount Collateral upgrade transactions Gross Amounts Recognized Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, before Offset Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, before Offset Available-for-sale securities Available-for-sale securities Debt Securities, Available-for-Sale [Abstract] Summary of Investment Holdings [Line Items] Summary of Investment Holdings [Line Items] Number of states in which entity operates Number of States in which Entity Operates Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Residential mortgage-backed Residential mortgage-backed Residential Mortgage-Backed Securities [Member] Beginning of period cumulative effect of changes in non-performance risk End of period cumulative effect of changes in non-performance risk AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax Settlements related to derivatives and collateral on investments Payments For (Proceeds From) Derivative Instruments And Collateral On Investments Payments For (Proceeds From) Derivative Instruments And Collateral On Investments Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Schedule of Deferred Acquisition Costs Deferred Policy Acquisition Costs [Table Text Block] Fair Value Disclosures [Abstract] Withdrawals Withdrawal from Contract Holders Funds Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Net MRB balance, beginning of period, before effect of changes in non-performance risk Net MRB balance, end of period, before effect of changes in non-performance risk Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change 30-89 Days Past Due Financing Receivables 30 To 89 Days Past Due [Member] Financing Receivables 30 To 89 Days Past Due Dividends on common stock Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date 2030 Long-Term Debt, Maturity, Year Four Balance adjusted for variances from expectation Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Net gains (losses) on derivatives and investments: Gain (Loss) On Derivative Instruments And Investments, Net [Abstract] Gain (Loss) On Derivative Instruments And Investments, Net Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Total equity Balance beginning of period Balance end of period Noncontrolling interests Equity, Including Portion Attributable to Noncontrolling Interest Nonrelated Party Nonrelated Party [Member] Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Market risk benefit, assets, measurement input Market Risk Benefit, Assets, Measurement Input Market Risk Benefit, Assets, Measurement Input Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Schedule of Gains and Losses on Funds Withheld Reinsurance Treaties Schedule Of Gains And Losses On Funds Withheld Reinsurance Treaties [Table Text Block] Schedule Of Gains And Losses On Funds Withheld Reinsurance Treaties Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Assets Derivative Asset [Abstract] Segments [Domain] Segments [Domain] Interest rate swaps Interest Rate Swap [Member] Investment management arrangement, automatic renewal, permissible period Investment Management Arrangement, Automatic Renewal, Permissible Period Investment Management Arrangement, Automatic Renewal, Permissible Period Payments to acquire equity stake Payments To Acquire Equity Interest In Entity Payments To Acquire Equity Interest In Entity Debt Debt Disclosure [Text Block] Share repurchase program Share Repurchase Program [Member] Share Repurchase Program Origination costs Debt Issuance Costs, Net Operating Costs And Other Expenses [Abstract] Operating Costs And Other Expenses Credit loss income (expense) Debt Securities, Available For Sale, Credit Loss Expense (Reversal) Debt Securities, Available For Sale, Credit Loss Expense (Reversal) PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Included in Net Income Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) Net reserve and embedded derivative movements Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Operating costs and other expenses, net of deferrals Total operating costs and other expenses Costs and Expenses Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Total shareholders' equity Equity, Attributable to Parent Corporate securities, utilities Corporate Debt Securities, Utilities [Member] Corporate Debt Securities, Utilities Gross Amounts Recognized Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Subject to Master Netting Arrangement, before Offset Due in 1 year or less Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, Year One Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, Year One Total financial liabilities Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract] Real Estate [Domain] Real Estate [Domain] Investment management arrangement, automatic renewal term Investment Management Arrangement, Automatic Renewal Term Investment Management Arrangement, Automatic Renewal Term Assets Assets Assets [Abstract] Other invested assets Other invested assets Other Investments Schedule of Information About Credit Quality and Vintage Year of Commercial Mortgage Loans Financing Receivable Credit Quality Indicators [Table Text Block] Preferred Stock, Redemption Period [Axis] Preferred Stock, Redemption Period [Axis] Preferred Stock, Redemption Period Freestanding derivatives Freestanding derivative liabilities Freestanding Derivative [Member] Freestanding Derivative Insider Trading Policies and Procedures [Line Items] Surrenders, withdrawals and benefits Policyholder Account Balance, Surrender and Withdrawal Nonperforming Nonperforming Financial Instruments [Member] Retail Annuities Retail Annuities Retail Annuities Segment [Member] Retail Annuities Segment Stockholders' equity threshold triggering required facility exercise Debt Instrument, Threshold, Stockholders’ Equity Trigger Debt Instrument, Threshold, Stockholders’ Equity Trigger TPG, Inc. TPG, Inc. [Member] TPG, Inc. Sub-advisor expenses Sub-advisor expenses Sub-Advisor Expenses Sub-Advisor Expenses Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Deferred income tax expense (benefit) Deferred Income Tax Expense (Benefit) Issuances Liability for Future Policy Benefit, Expected Net Premium, Issuance Gross Amounts Offset in the Condensed Consolidated Balance Sheets Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, Asset Offset Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, Asset Offset Real estate, foreclosed properties Real Estate, Foreclosed Properties [Member] Real Estate, Foreclosed Properties Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Entity Central Index Key Entity Central Index Key Weighted-average crediting rate Policyholder Account Balance, Weighted Average Crediting Rate Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Due after 10 years through 20 years Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Equity index call options Equity Index Call Options [Member] Equity Index Call Options Policy charges and other Separate Account, Liability, Policy Charge Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Variable annuity Variable Annuity Variable Annuities Variable Annuity [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Share Repurchase Program [Table] Share Repurchase Program [Table] Initial dividend rate Preferred Stock, Dividend Rate, Percentage Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Annuity reserves Liability For Future Policy Benefits, Annuity Reserves Liability For Future Policy Benefits, Annuity Reserves Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Schedule of Components of Reinsurance Premiums and Benefits and Recoverable Effects of Reinsurance [Table Text Block] Balance, beginning of period Balance, end of period Additional Liability, Long-Duration Insurance, before Reinsurance, after Discount Rate Change Non-accrual Loans with No Allowance Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Mortality Measurement Input, Mortality Rate [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Performing Performing Financial Instruments [Member] As Previously Reported Previously Reported [Member] Net Amounts Presented in the Condensed Consolidated Balance Sheets Securities lending payable Securities Loaned Statement [Line Items] Statement [Line Items] Total assets Total Assets Assets Unrealized Tax Losses, Available-For-Sale Securities Unrealized Tax Losses, Available-For-Sale Securities [Member] Unrealized Tax Losses, Available-For-Sale Securities Other commission expenses Other commission expenses Other Commission Expense Other Commission Expense Within 90 days after the occurrence of a regulatory capital event Redemption Period Two [Member] Redemption Period Two Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Unconsolidated VIEs Variable Interest Entity, Not Primary Beneficiary [Member] Liability for Future Policy Benefit Activity [Table] Liability for Future Policy Benefit Activity [Table] Net gains (losses) on non-derivative investments Nonoperating Gains (Losses), Non-Derivative Instruments Nonoperating Gains (Losses), Non-Derivative Instruments Derivative instrument, deferred option premiums Derivative Instrument, Deferred Option Premiums Derivative Instrument, Deferred Option Premiums Operating Segments Operating Segments [Member] Total investment income excluding funds withheld assets Investments, Excluding Funds Withheld Assets [Member] Investments, Excluding Funds Withheld Assets Change in non-performance risk on market risk benefits Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Reductions for securities disposed Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sold Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Period of notice prior to termination Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, Termination Notice Security Sold under Agreement to Repurchase, Collateral Upgrade, Subject to Master Netting Arrangement, Termination Notice PEO PEO [Member] 2028 Long-Term Debt, Maturity, Year Two % of Total Financing Receivable, before Allowance for Credit Loss, to Total, Percent Number of pricing methods Debt And Equity Securities, Number Of Pricing Methods Debt And Equity Securities, Number Of Pricing Methods Collateral upgrade transactions Securities Sold under Agreements to Repurchase, Collateral Upgrade [Member] Securities Sold under Agreements to Repurchase, Collateral Upgrade Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Liability for Future Policy Benefit, Activity [Line Items] Liability for Future Policy Benefit, Activity [Line Items] Noncumulative Preferred Stock Noncumulative Preferred Stock [Member] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Accrued investment income Increase (Decrease) in Accrued Investment Income Receivable Retained Earnings Retained Earnings [Member] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Revolving Credit Facility Revolving Credit Facility [Member] Net realized investment gains (losses) on funds withheld assets Realized Investment Gains (Losses), Funds Withheld Assets Realized Investment Gains (Losses), Funds Withheld Assets Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance, outstanding (in shares) Ending balance, outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Schedule of Fair Value and Carrying Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Repurchase agreements Offsetting Securities Sold under Agreements to Repurchase [Abstract] Corporate securities Corporate securities Corporate Debt Securities [Member] Diluted (in usd per share) Earnings Per Share, Diluted Effect of changes in assumptions Market Risk Benefit, Increase (Decrease) from Changes In Assumptions Market Risk Benefit, Increase (Decrease) from Changes In Assumptions Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Credit loss expense on mortgage loans Financing Receivable, Credit Loss, Expense (Reversal) Reserves for future policy benefits Liability For Future Policy Benefit, Before Reinsurance, Reserve Liability For Future Policy Benefit, Before Reinsurance, Reserve Unrealized gain (losses) on investments Unrealized Gain (Loss) on Investments B and below NRSRO, B And Below Rating [Member] NRSRO, B And Below Rating Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Mortgage loans Financing Receivable [Member] Schedule of Gross and Net Information About Financial Instruments Subject to Master Netting Arrangements - Assets Offsetting Assets [Table Text Block] Net Amount Security Sold under Agreement to Repurchase, Including Not Subject to Master Netting Arrangement, Collateral Upgrade, after Offset and Deduction Security Sold under Agreement to Repurchase, Including Not Subject to Master Netting Arrangement, Collateral Upgrade, after Offset and Deduction Limited partnerships Investments in Limited Partnerships and Alternative Investments Investments in Limited Partnerships and Alternative Investments Cross-currency forwards Cross Currency Forward [Member] Cross Currency Forward Senior Notes 2036 And 2056 Senior Notes Due 2036 And 2056 [Member] Senior Notes Due 2036 And 2056 Total benefits and expenses Benefits, Losses And Expenses, Net Benefits, Losses And Expenses, Net Other contract holder funds Total other contract holder funds Balance as of beginning of year Balance as of ending of year Other Policyholder Funds, Gross Other Policyholder Funds, Gross Changes for securities with previously recorded credit loss Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal) Fees attributed to guarantee benefit reserves Fees attributable to guarantee benefit reserves Fee Income, Variable Annuity Benefit Reserves Fee Income, Variable Annuity Benefit Reserves Schedule of Composition of Fair Value of Debt Securities Classified by Rating Schedule Of Composition Of Fair Value Of Debt Securities Classified By Rating [Table Text Block] Schedule Of Composition Of Fair Value Of Debt Securities Classified By Rating Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Share Repurchase Program [Line Items] Share Repurchase Program [Line Items] Guaranteed investment contracts and funding agreements Liabilities Related to Investment Contracts, Fair Value Disclosure 12 months or longer, fair value Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer Net amount at risk Policyholder Account Balance, Net Amount at Risk Additions for which credit loss was not previously recorded Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not Previously Recorded Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Net Amount Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Schedule of Impaired Financing Receivables Financing Receivables, Impaired [Table Text Block] Financing Receivables, Impaired Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Collateral, Right to Reclaim Security Not Offset Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Collateral, Right to Reclaim Security Not Offset Schedule of Commercial Mortgage Loans and Residential Mortgage Loans Schedule of Participating Mortgage Loans [Table Text Block] Sales, maturities and repayments of: Proceeds from Sale, Maturity and Collection of Investments [Abstract] Expected future gross premiums, undiscounted Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance Non-performance risk adjustment Measurement Input, Entity Credit Risk [Member] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Deduction of Financial Instrument Not Offset Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Deduction of Financial Instrument Not Offset Share repurchase program, excise tax Share Repurchase Program, Excise Tax Schedule of Contractual Maturities of Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Debt Service Coverage Ratios [Axis] Debt Service Coverage Ratios [Axis] Debt Service Coverage Ratios Participating Insurance [Abstract] Sale of Stock [Axis] Sale of Stock [Axis] Debt-to-Value [Domain] Debt-to-Value [Domain] Net losses (gains) on derivatives Net gains (losses) on hedging instruments Derivative, Gain (Loss) on Derivative, Net Schedule of Dividends Paid Dividends Declared [Table Text Block] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Future policy benefits Increase Decrease In Future Policy Benefits Increase Decrease In Future Policy Benefits Total assets Funds Held Under Reinsurance Agreements, Asset (Liability), Net Funds Held Under Reinsurance Agreements, Asset (Liability), Net Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Policy loans not held as collateral for reinsurance Loans, Gross, Insurance Policy, Not Held As Collateral Loans, Gross, Insurance Policy, Not Held As Collateral Equity securities Equity Securities [Member] Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving Policy loans Policy Loans [Member] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Security Loaned, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Schedule of Rollforward of Mortgagees Allowance for Credit Loss Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Any time prior to March 30, 2028 Redemption Period One [Member] Redemption Period One Fair Value, beginning of period Fair Value, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value At Guaranteed Minimum Policyholder Account Balance, at Guaranteed Minimum Crediting Rate [Member] Fee percentage Debt Instrument, Fee Percentage Debt Instrument, Fee Percentage Guaranteed Insurance Contract, Type of Benefit [Axis] Guaranteed Insurance Contract, Type of Benefit [Axis] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Non-cash financing activities Noncash Financing Items [Abstract] Noncash Financing Items Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change Product and Service [Domain] Product and Service [Domain] Federal Home Loan Bank Advances Federal Home Loan Bank Advances, Disclosure [Text Block] Class of Stock [Line Items] Class of Stock [Line Items] Without single maturity Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, Without Single Maturity Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, Without Single Maturity Mortality, expense and surrender charges Mortality Expense And Surrender Charges Mortality Expense And Surrender Charges Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Line of credit facility, terminated Line Of Credit Facility, Terminated Line Of Credit Facility, Terminated Death, other policy benefits and change in policy reserves, net of deferrals Death, other policy benefits and change in policy reserves, net of deferrals Death, Other Policy Benefits And Change In Policy Reserves, Net Of Deferrals Death, Other Policy Benefits And Change In Policy Reserves, Net Of Deferrals Mortgage loans, at fair value under fair value option Fair value Mortgage loans Financing Receivable, Fair Value Option Financing Receivable, Fair Value Option Termination Date Trading Arrangement Termination Date Other Commitments [Axis] Other Commitments [Axis] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset 2031 and thereafter Long-Term Debt, Maturity, Year Five And Thereafter Long-Term Debt, Maturity, Year Five And Thereafter Subsequent Events [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Net Amount Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Security Loaned, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Investment in Federal Home Loan Bank Stock Investment in Federal Home Loan Bank Stock [Member] Transfers in and/or (out of ) Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Mortgage loans, net of allowance for credit losses of $191 and $133 at September 30, 2026 and December 31, 2025, respectively Financing Receivable, Excluding Accrued Interest And Fair Value Option, After Allowance For Credit Loss Financing Receivable, Excluding Accrued Interest And Fair Value Option, After Allowance For Credit Loss Bond Separate Account, Bond [Member] Separate Account, Bond Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Total Carrying Value Debt Securities in Unrealized Loss Position Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Net (gain) loss on market risk benefits Net Gain (Loss) On Market Risk Benefits Net Gain (Loss) On Market Risk Benefits Utilization Measurement Input, Utilization Rate [Member] Change in unrealized gains (losses) on securities with credit impairment, net of tax expense (benefit) of: $(2) and $(1), for the three months ended September 30, 2026 and 2025, respectively, and $(1) and $(2), for the nine months ended September 30, 2026 and 2025, respectively. OCI, Debt Securities, Available-for-Sale, Impaired, Unrealized Holding Gain (Loss), After Adjustment And Tax OCI, Debt Securities, Available-for-Sale, Impaired, Unrealized Holding Gain (Loss), After Adjustment And Tax Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Share repurchase program, remaining authorized amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Deferred Policy Acquisition Cost [Line Items] Deferred Policy Acquisition Cost [Line Items] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Retail Retail Site [Member] Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Equity interest in entity acquired (in shares) Equity Interest In Entity Acquired, Number Of Shares Equity Interest In Entity Acquired, Number Of Shares Market Risk Benefit [Table] Market Risk Benefit [Table] Reinsurance recoverable, allowance for credit losses Reinsurance Recoverable, Allowance for Credit Loss Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Interest expense on advances Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Short-Term Schedule of Carrying Amount and Fair Value by Hierarchy of Certain Financial Instruments Not Reported at Fair Value Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table Text Block] Liabilities Reinsurance Liabilities [Abstract] Total revenues Revenues Total revenues Revenues Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Schedule of Policyholder Account Balance and Liability for Unpaid Claims and Claims Adjustment Expense Policyholder Account Balance And Liability For Unpaid Claims And Claims Adjustment Expense [Table Text Block] Policyholder Account Balance And Liability For Unpaid Claims And Claims Adjustment Expense Limited partnership investments measured at NAV Alternative Investment FHLBI capital stock, stock price (in usd per share) Federal Home Loan Bank Capital Stock Share Price Federal Home Loan Bank Capital Stock Share Price Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Due after 5 years through 10 years Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Credit loss expense Debt Securities, Available-for-Sale, Allowance for Credit Loss, Not Previously Recorded Net realized gain (loss) on investments AOCI, Gain (Loss), Debt Securities, Available-for-Sale, without Allowance for Credit Loss, Parent [Member] Operating Benefits and Expenses Operating Costs and Expenses [Abstract] Closed Block Annuity Closed Block Annuity Closed Block Annuity [Member] Closed Block Annuity Funds withheld payable under reinsurance treaties Funds Withheld, Payable Under Reinsurance Treaties Funds Withheld, Payable Under Reinsurance Treaties Other items Other Segment Reconciling Items, Net Income (Loss) Other Segment Reconciling Items, Net Income (Loss) Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Schedule of Assets and Liabilities Carried at Fair Value by Hierarchy Levels Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] All Award Types Award Type [Domain] Corporate debt securities, healthcare Corporate Debt Securities, Healthcare [Member] Corporate Debt Securities, Healthcare Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Total balance, end of period Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net Schedule of Balances of and Changes in Liability for Future Policy Benefits, and Revenue and Interest Recognized Liability for Future Policy Benefit, Activity [Table Text Block] Cash surrender value Separate Account, Liability, Cash Surrender Value, Amount Number of Shares Repurchased Treasury Stock, Shares, Acquired Amortized Cost Debt Securities, Maturity, Allocated And Single Maturity Date, Amortized Cost [Abstract] Debt Securities, Maturity, Allocated And Single Maturity Date, Amortized Cost Additions for purchases of PCD debt securities Debt Securities, Available-for-Sale, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Restricted cash (included in Other assets) Restricted Cash Policy loans, fair value under fair value option Policy loans Loans, Gross, Insurance Policy, Fair Value Option Loans, Gross, Insurance Policy, Fair Value Option Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] Interest accrual Liability for Future Policy Benefit, Expected Net Premium, Interest Income Other assets Other assets Other Assets SRZ Swiss Reinsurance Company Ltd [Member] Swiss Reinsurance Company Ltd Legal Entity [Axis] Legal Entity [Axis] Liability Class [Axis] Liability Class [Axis] Purchase of treasury stock Total Payments Treasury Stock, Value, Acquired, Cost Method Unobservable Inputs Unobservable Inputs [Member] Unobservable Inputs Cash, cash equivalents, and restricted cash at beginning of period Total cash, cash equivalents, and restricted cash at end of period Total cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Issuance of treasury stock Stock Issued During Period, Value, Treasury Stock Reissued Fractional interest Sale of Stock, Number of Shares Issued in Transaction, Fractional Value Sale of Stock, Number of Shares Issued in Transaction, Fractional Value Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Collateral, Right to Reclaim Cash Not Offset Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral Upgrade, Collateral, Right to Reclaim Cash Not Offset Institutional Products Institutional Products Institutional Products Segment [Member] Institutional Products Segment Effects of Reinsurance [Table] Effects of Reinsurance [Table] Less than 70% Debt-To-Value Ratio, Less Than 70 Percent [Member] Debt-To-Value Ratio, Less Than 70 Percent Schedule of Amounts Reclassified Out of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Non-NEOs Non-NEOs [Member] Separate Account, Liability [Table] Separate Account, Liability [Table] Agreement-Backed Commercial Paper Program Agreement-Backed Commercial Paper Program [Member] Agreement-Backed Commercial Paper Program Interest credited on other contract holder funds, net of deferrals and amortization Interest credited Policyholder Account Balance, Interest Expense Schedule of Aggregate Carrying Value of Debt Schedule of Debt [Table Text Block] Gross Amounts Recognized Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Net investment income excluding funds withheld assets Investment income (loss) related to mark-to-market on TPG shares Net investment income excluding funds withheld assets Net Investment Income, Excluding Funds Withheld Assets Net Investment Income, Excluding Funds Withheld Assets Purchase of treasury stock Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Debt securities, rated by investment advisor Debt Securities, Rated Debt Securities, Rated Schedule of Gains and Losses, and Change in Fair Value of Derivatives Derivative Instruments, Gain (Loss) [Table Text Block] Award Type Award Type [Axis] Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Real estate Real Estate [Member] Debt securities, available for sale, amortized cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Equity securities, at fair value Equity securities Equity securities Equity Securities, FV-NI Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock Issued Common Stock [Member] Amortized Cost Amortized Cost Debt Securities, Amortized Cost Debt Securities, Amortized Cost FHLBI bank loans due 2034 & 2035 FHLBI Bank Loans [Member] FHLBI Bank Loans Debt securities, at fair value under fair value option Debt Securities, Available-for-Sale External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Axis] Pre-capitalized trust securities and debt issuance costs Payments Of Pre-Capitalized Trust Securities And Debt Issuance Costs Payments Of Pre-Capitalized Trust Securities And Debt Issuance Costs Funds withheld payable under reinsurance treaties Funds Held Under Reinsurance Agreements, Liability, Excluding At Fair Value Under Fair Value Option Funds Held Under Reinsurance Agreements, Liability, Excluding At Fair Value Under Fair Value Option Net worth percentage, increase adjustment from equity issuances Debt Instrument, Consolidated Net Worth Percentage, Increase Adjustment From Equity Issuances Debt Instrument, Consolidated Net Worth Percentage, Increase Adjustment From Equity Issuances Accrued interest written off Financing Receivable, 90 Days or More Past Due, Still Accruing, Writeoff Financing Receivable, 90 Days or More Past Due, Still Accruing, Writeoff Change in unrealized gains (losses) on securities for which an allowance for credit losses has been recorded, tax expense (benefit) OCI, Debt Securities, Available-for-Sale, Impaired, Unrealized Holding Gain (Loss), after Adjustment, Tax OCI, Debt Securities, Available-for-Sale, Impaired, Unrealized Holding Gain (Loss), after Adjustment, Tax Derivative Contract [Domain] Derivative Contract [Domain] Funds withheld, net of reinsurance Increase (Decrease) in Funds Held under Reinsurance Agreements Other Other Nonoperating Gains (Losses) 1.00x - 1.20x Debt Service Coverage Ratio, 1.00X To 1.20X [Member] Debt Service Coverage Ratio, 1.00X To 1.20X Derivative assets Derivative Financial Instruments, Assets [Member] Total liabilities and equity Liabilities and Equity Deferred Acquisition Costs Deferred Policy Acquisition Costs [Text Block] Total, fair value Debt Securities, Unrealized Loss Position Debt Securities, Unrealized Loss Position Net realized losses (gains) on investments Net realized investment gains (losses) Realized Investment Gains (Losses) Employee Stock Option Share-Based Payment Arrangement, Option [Member] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Closed Life and Annuity Blocks Closed Life and Annuity Blocks Closed Life And Annuity Blocks Segment [Member] Closed Life And Annuity Blocks Segment Noncontrolling interests Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Schedule of Residential Mortgage-Backed Securities Schedule Of Residential Mortgage Backed Securities [Table Text Block] Schedule Of Residential Mortgage Backed Securities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Related Party [Domain] Related and Nonrelated Parties [Domain] Due after 20 years Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Twenty Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Twenty Tabular List, Table Tabular List [Table Text Block] Other impaired securities AOCI, Gain (Loss), Debt Securities, Available-for-Sale, with Allowance for Credit Loss, Parent [Member] Fixed Index Annuities Fixed Indexed Annuity [Member] Fixed Indexed Annuity Additional paid-in capital Additional Paid in Capital Issuances Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance Name Awards Close in Time to MNPI Disclosures, Individual Name U.S. government securities NRSRO, U.S. Government Securities, Rating [Member] NRSRO, U.S. Government Securities, Rating Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Effect of changes in interest rates Market Risk Benefit, Increase (Decrease) from Interest Rate Change Debt-to-Value [Axis] Debt-to-Value [Axis] Separate Account, Liability [Roll Forward] Separate Account, Liability [Roll Forward] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Amortization of DAC related to non-operating revenues and expenses Amortization Of DAC And DSI Related To Non Operating Revenues And Expenses Amortization Of DAC And DSI Related To Non Operating Revenues And Expenses Less: Dividends on preferred stock Less: Dividends on preferred stock Less: Preferred stock dividends Preferred Stock Dividends and Other Adjustments Fair Value Portion at Other than Fair Value Measurement [Member] Series A non-cumulative preferred stock and additional paid in capital, $1.00 par value per share: 24,000 shares authorized; 22,000 shares issued and outstanding at September 30, 2026 and December 31, 2025; liquidation preference $25,000 per share (see Note 19) Preferred Stock, Value, Issued Net Amount Security Loaned, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Adjustment to Compensation: Adjustment to Compensation [Axis] Market risk benefit liabilities Market Risk Benefit, Liability Amount [Member] Market Risk Benefit, Liability Amount Reclassifications from AOCI, net of tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax FHLBI capital stock FHLBI capital stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Federal home loan bank advances Federal Home Loan Bank, Advance, Branch of FHLBank, Amount Repurchase agreements and securities lending payable Securities Sold Under Agreements To Repurchase And Securities Loaned Securities Sold Under Agreements To Repurchase And Securities Loaned Closed Block Life Closed Block Life Closed Block Life [Member] Closed Block Life Credit Facility [Axis] Credit Facility [Axis] Total Assets, Fair Value Disclosure Name Measure Name Interest Expense Liability for Future Policy Benefit, Interest Expense Securities intended/required to be sold before recovery of amortized cost basis Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sell before Recovery Pay vs Performance Disclosure [Line Items] Balance adjusted for variances from expectation Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Equity securities Proceeds from Sale of Equity Securities, FV-NI Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Debt securities, at fair value under the fair value option Debt Securities, Fair Value Option [Member] Debt Securities, Fair Value Option Schedule of Reserves for Future Policy Benefits and Claims Payable Balances Schedule of Liability for Future Policy Benefits, by Product Segment [Table Text Block] Additional Paid-In Capital Additional Paid-in Capital [Member] AAA NRSRO, AAA Rating [Member] NRSRO, AAA Rating Net investment income (loss) related to noncontrolling interests Net Investment Income, Noncontrolling Interests Net Investment Income, Noncontrolling Interests Collateral payable for derivative instruments Obligation to Return Securities Received as Collateral Total investment income on funds withheld assets Investment Income, Operating, Net Investment Income, Operating, Net Non-cash dividend equivalents on stock-based awards Non-Cash Dividend Equivalents On Stock Based Awards Non-Cash Dividend Equivalents On Stock Based Awards Internal Internal Pricing Source [Member] Internal Pricing Source Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Market Risk Benefit [Line Items] Market Risk Benefit [Line Items] Purchases of: Payments to Acquire Investments [Abstract] Effect of actual policyholder behavior different from expected Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected Effect of actual variances from expected experience Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Investment performance Separate Account, Liability, Increase (Decrease) from Invested Performance Non-agency RMBS Non Agency Residential Mortgage Backed Securities [Member] Non Agency Residential Mortgage Backed Securities Company Selected Measure Amount Company Selected Measure Amount Schedule of Reconciliation of Segment Pretax Adjusted Operating Earnings to Net Income Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] Gross Unrealized Losses Gross Unrealized Losses Debt Securities, Accumulated Gross Unrealized Loss, Before Tax Debt Securities, Accumulated Gross Unrealized Loss, Before Tax Total return swaps Total Return Swap [Member] Unrealized losses Debt Securities, Unrealized Loss Percentage Debt Securities, Unrealized Loss Percentage Gross Unrealized Losses Debt Securities, Maturity, Allocated and Single Maturity Date, Gross Unrealized Losses [Abstract] Debt Securities, Maturity, Allocated and Single Maturity Date, Gross Unrealized Losses Stressed loans Financing Receivable, Stressed Loans Financing Receivable, Stressed Loans Gross Amounts Recognized Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, before Offset Public utilities Public utilities Public Utilities [Member] Share-based compensation programs (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Deferral of acquisition costs Deferral of acquisition costs Deferral Of Acquisition Costs And Sales Inducement Assets Deferral Of Acquisition Costs And Sales Inducement Assets Non-PEO NEO Non-PEO NEO [Member] Uncommitted Money Market Line Credit Agreement Uncommitted Money Market Line Credit Agreement [Member] Uncommitted Money Market Line Credit Agreement Transfers in and/or (out of ) Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Award Timing Method Award Timing Method [Text Block] Other product lines Other Product Lines Product and Service, Other [Member] Net increase (decrease) in cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Greater Than 150 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater [Member] Effect of fund performance Market Risk Benefit, Increase (Decrease) from Fund Performance Market Risk Benefit, Increase (Decrease) from Fund Performance Accrued interest receivable on debt securities Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Net income (loss) attributable to Jackson Financial Inc. Net income (loss) attributable to Jackson Financial Inc. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Location, Statement of Financial Position, Balance [Axis] Location, Statement of Financial Position, Balance [Axis] Fair value option, assets carrying amount Fair Value, Option, Assets, Carrying Amount Fair Value, Option, Assets, Carrying Amount Restatement Determination Date: Restatement Determination Date [Axis] Market Risk Benefit [Roll Forward] Market Risk Benefit [Roll Forward] Schedule of Changes in Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Total net gains (losses) on derivatives and investments Total net gains (losses) on derivatives and investments Gain (Loss) On Investments And Derivative Instruments, Net Gain (Loss) On Investments And Derivative Instruments, Net Policy loans (including $3,535 and $3,537 at fair value under the fair value option at September 30, 2026 and December 31, 2025, respectively) Policy loans Loans, Gross, Insurance Policy Total Realized/Unrealized Gains (Losses) Included in Other Comprehensive Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Gross Amounts Offset in the Condensed Consolidated Balance Sheets Security Loaned, Subject to Master Netting Arrangement, Asset Offset Market risk benefit assets Market Risk Benefits, Asset Amount [Member] Market Risk Benefits, Asset Amount Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Revenues Operating Revenues Revenues [Abstract] Money Market Separate Account, Money Market Funds [Member] Separate Account, Money Market Funds Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Without single maturity Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, Without Single Maturity Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, Without Single Maturity Change in net unrealized gains (losses) on securities not impaired, tax expense OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Statistical Measurement [Domain] Statistical Measurement [Domain] Policyholder Account Balance [Line Items] Policyholder Account Balance [Line Items] Weighted average current discount rate Additional Liability, Long-Duration Insurance, Current Weighted-Average Discount Rate Document Fiscal Year Focus Document Fiscal Year Focus Gross Amounts Offset in the Condensed Consolidated Balance Sheets Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Total net gains (losses) on derivatives and investments Nonoperating Gains (Losses) Derivatives related to non-qualified voluntary deferred compensation plan Derivatives Related To Non-Qualified Voluntary Deferred Compensation [Member] Derivatives Related To Non-Qualified Voluntary Deferred Compensation Common stock; 1,000,000,000 shares authorized, $0.01 par value per share and 66,448,342 and 66,825,632 shares issued and outstanding at September 30, 2026 and December 31, 2025, respectively (see Note 19) Common Stock, Value, Issued Interest expense Gross interest expense Interest Expense, Operating and Nonoperating Embedded derivative liabilities Embedded Derivative, Fair Value of Embedded Derivative Liability Line of Credit Line of Credit [Member] Schedule of Operating Costs and Other Expenses Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Restatement Determination Date Restatement Determination Date Schedule of Portion of Gains (Losses) Included in Net Income or Other Comprehensive Income Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Assets And Liabilities, Gain (Loss) Included In Earnings And Other Comprehensive Income (Loss) [Table Text Block] Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Assets And Liabilities, Gain (Loss) Included In Earnings And Other Comprehensive Income (Loss) Schedule of Net Gains (Losses) on Derivatives and Investments Gain (Loss) On Securities And Derivative Instruments [Table Text Block] Gain (Loss) On Securities And Derivative Instruments Beginning of period cumulative effect of changes in discount rate assumptions End of period cumulative effect of changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax Amendment Flag Amendment Flag Net investment income on funds withheld assets Net investment income on funds withheld assets Net investment income on funds withheld assets Net Investment Income, Funds Withheld Assets Net Investment Income, Funds Withheld Assets Other investment income Other Investment [Member] Other Investment Percent of total debt securities carrying value Debt and Equity Securities, FV-NI [Line Items] Net proceeds from (payments on) Federal Home Loan Bank notes Payments Of (Proceeds From) FHL Bank Borrowings, Financing Activities Payments Of (Proceeds From) FHL Bank Borrowings, Financing Activities Change in non-performance risk on market risk benefits, net of tax expense (benefit) of $(36) and $(127), for the three months ended September 30, 2026 and 2025, respectively, and $22 and $(114), for the nine months ended September 30, 2026 and 2025, respectively. OCI, Market Risk Benefit, Instrument-Specific Credit Risk, Gain (Loss), after Adjustments and Tax Total net investment income Net investment income Net investment income Net Investment Income Largest unrealized loss to a single corporate obligor Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Schedule of Roll forward of the Separate Account Balance in the Consolidated Balance Sheet Separate Account, Reconciliation [Table Text Block] Separate Account, Reconciliation Investments Investment [Text Block] Gross Premiums Liability For Future Policy Benefit (Expense), Gross Premium Income Liability For Future Policy Benefit (Expense), Gross Premium Income Beginning balance at original discount rate (including DPL of $110, nil and $546 in September 30, 2026, and $91, nil and $588 in December 31, 2025 for payout annuities, closed block life and closed block annuity, respectively) Ending balance of original discount rate (including DPL of $104, nil and $510 in September 30, 2026, and $110, nil and $546 in December 31, 2025 for payout annuities, closed block life and closed block annuity, respectively) Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance Investments [Domain] Investments [Domain] Due after 5 years through 10 years Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Five Through Ten Derivative disbursement obligation Derivative, Downgrade Provision Triggered, Disbursement Obligation Derivative, Downgrade Provision Triggered, Disbursement Obligation Investment income recognized Financing Receivable, Impaired, With Related Allowance, Interest Income, Accrual Method Financing Receivable, Impaired, With Related Allowance, Interest Income, Accrual Method Balanced Separate Account, Balanced [Member] Separate Account, Balanced Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province Policyholder account balance above guaranteed minimum crediting rate Policyholder Account Balance, above Guaranteed Minimum Crediting Rate Equity securities Payments to Acquire Equity Securities, FV-NI PEO Total Compensation Amount PEO Total Compensation Amount Assets Assets, Fair Value Disclosure [Abstract] Preferred Stock, Redemption Period [Domain] Preferred Stock, Redemption Period [Domain] Preferred Stock, Redemption Period [Domain] Weighted average shares of common stock outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Share Repurchase Program [Domain] Share Repurchase Program [Domain] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Gross Amounts Recognized Security Loaned, Subject to Master Netting Arrangement, before Offset Deferred acquisition costs Increase (Decrease) in Deferred Policy Acquisition Costs Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Mortgage loans Proceeds from Sale and Collection of Finance Receivables Unfunded Loan Commitment Unfunded Loan Commitment [Member] Schedule of Rollforward of Debt Securities Allowance for Credit Loss Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table Text Block] Investments: Investments [Abstract] Interest Income on Non-accrual Loans Financing Receivable, Nonaccrual, Interest Income Commercial paper Commercial Paper Life Life Insurance Product Line [Member] Document Information [Line Items] Document Information [Line Items] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Funds withheld payable under reinsurance treaties Funds Withheld Payable Under Reinsurance Treaties [Member] Funds Withheld Payable Under Reinsurance Treaties Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Dividends on preferred stock Payments of Ordinary Dividends, Preferred Stock and Preference Stock Class of Stock [Axis] Class of Stock [Axis] Policy loans Loans, Gross, Insurance Policy, Excluding At Fair Value Under Fair Value Option Loans, Gross, Insurance Policy, Excluding At Fair Value Under Fair Value Option Due after 1 year through 5 years Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year One Through Five Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year One Through Five Due after 20 years Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Twenty Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year Twenty Schedule of Components of Amounts Included in Purchases, Sales, Issuances and Settlements Schedule Of Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets And Liabilities, Purchases, Sales, Issuances, And Settlements [Table Text Block] Schedule Of Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets And Liabilities, Purchases, Sales, Issuances, And Settlements Net income (loss) attributable to Jackson Financial Inc. common shareholders, Basic Net Income (Loss) Available to Common Stockholders, Basic Change in current discount rate - reserve for future policy benefits OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, before Tax Other asset-backed securities Other Asset-Backed Securities [Member] Other Asset-Backed Securities Total Product and Service, Excluding Institutional And Other Product Lines [Member] Product and Service, Excluding Institutional And Other Product Lines Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Equity index put options Equity Index Put Option [Member] Equity Index Put Option Corporate And Reconciling Items Corporate And Reconciling Items [Member] Corporate And Reconciling Items Funding agreements Funding Agreement Funding Agreement Dividends on preferred stock Dividends, Preferred Stock Mortgage loans Total with ACL Aggregate contractual principal Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Variable dividend rate Preferred Stock, Dividend Rate, Variable Rate, Percentage Preferred Stock, Dividend Rate, Variable Rate, Percentage Due in 1 year or less Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, Year One Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, Year One Effect of time Market Risk Benefit, Increase (Decrease) from Time Market Risk Benefit, Increase (Decrease) from Time Investment expenses Other investment expenses on funds withheld assets Investment Income, Investment Expense New Accounting Pronouncements – Issued but Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] RILA Registered Index Linked Annuity (RILA) [Member] Registered Index Linked Annuity (RILA) Fair value option, market risk benefit, debt securities Debts Securities, Market Risk Benefits, Fair Value Option Debts Securities, Market Risk Benefits, Fair Value Option Non-Controlling Interests Noncontrolling Interest [Member] Line of credit facility, increase limit Line Of Credit Facility, Accordion Feature, Increase Limit Line Of Credit Facility, Accordion Feature, Increase Limit Claims liability and other Reinsurance Recoverables, Case Basis Purchases, Sales, Issuances and Settlements Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) Unsecured Debt Unsecured Debt [Member] Deposits Separate Account, Liability, Deposit Interest rate futures Future [Member] Debt Debt carrying value Total debt Total Long-Term Debt Financing receivables, collateralized by properties, number of states Financing Receivable, Collateralized By Properties, Number Of States Financing Receivable, Collateralized By Properties, Number Of States Schedule of Policyholder Account Balance, Guaranteed Minimum Crediting Rate Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Table Text Block] Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Subprime Subprime [Member] Change in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Asset-based commission expenses Asset-based commission expenses Asset-Based Commission Expense Asset-Based Commission Expense Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Residential Mortgage Residential Residential Real Estate [Member] Surplus notes due 2027 Surplus Notes Surplus Notes [Member] Surplus Notes Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Equity Equity [Text Block] Security Exchange Name Security Exchange Name Change in equity of noncontrolling interests Noncontrolling Interest, Period Increase (Decrease) Increase to valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Gross Unrealized Gains Gross Unrealized Gains Debt Securities, Accumulated Gross Unrealized Gain, Before Tax Debt Securities, Accumulated Gross Unrealized Gain, Before Tax Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Total Liabilities, Fair Value Disclosure Related loan allowance Financing Receivable, Impaired, Related Allowance Financing Receivable, Impaired, Related Allowance Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Change in non-performance risk on market risk benefits, net of tax expense (benefit) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Securities Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Interest rate swaps - cleared Interest Rate Swap - Cleared [Member] Interest Rate Swap - Cleared The 2026 Revolving Credit Facility The 2026 Revolving Credit Facility [Member] The 2026 Revolving Credit Facility FABN Funding Agreements FABN Funding Agreements [Member] FABN Funding Agreements Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Earnings per share—common stock Earnings Per Share, Basic and Diluted EPS [Abstract] Earnings Per Share, Basic and Diluted EPS Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Non-cash investing activities Noncash Investing Items [Abstract] Noncash Investing Items Proceeds from (payments on) repurchase agreements and securities lending Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Expected future benefit payments, undiscounted Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance Other asset-backed securities Other asset-backed securities Asset-Backed Securities, Other [Member] Asset-Backed Securities, Other Below investment grade or not rated External Credit Rating, Non Investment Grade Or Not Rated [Member] External Credit Rating, Non Investment Grade Or Not Rated Mortgage loans Payments to Acquire Finance Receivables Change in unrealized gains (losses) on securities with no credit impairment, net of tax expense (benefit) of: $(71) and $19, for the three months ended September 30, 2026 and 2025, respectively, and $(52) and $68, for the nine months ended September 30, 2026 and 2025, respectively. OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table] Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table] Greater than 1.20x Debt Service Coverage Ratio, Greater Than 1.20X [Member] Debt Service Coverage Ratio, Greater Than 1.20X Residential mortgage loans Residential Mortgage [Member] Debt securities Debt Securities [Member] Asset Class [Domain] Asset Class [Domain] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average shares of common stock outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Mortgage loans in process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Accruing Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Underlying Security Market Price Change Underlying Security Market Price Change, Percent Commercial Paper Commercial Paper [Member] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Non-income producing properties Non-Income Producing Properties [Member] Non-Income Producing Properties Expected future benefit payments, discounted Liability for Future Policy Benefit, Expected Future Policy Benefit, Discounted, before Reinsurance Liability for Future Policy Benefit, Expected Future Policy Benefit, Discounted, before Reinsurance Unconsolidated VIEs, exposure to loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount 3.125% Senior Notes due 2031 Senior Notes Due 2031 [Member] Senior Notes Due 2031 Accrued investment income Accrued Investment Income Receivable Gross Premiums Liability for Future Policy Benefit, Gross Premium Income Treasury Stock at Cost Treasury Stock Treasury Stock, Common [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] 30-89 Days Past Due Financial Asset, 30-89 Days Past Due [Member] Financial Asset, 30-89 Days Past Due Commercial mortgage loans Commercial Loan [Member] Contractual/Notional Amount Derivative Asset, Notional Amount Schedule of Fair Value Option Fair Value Option, Disclosures [Table Text Block] Net MRB balance, end of period, net of reinsurance Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change Issuance of treasury stock Proceeds from Sale of Treasury Stock Settlements related to deferred premium on derivatives Amortization Of Settlements Related Deferred Premium On Derivatives Amortization Of Settlements Related Deferred Premium On Derivatives All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] U.S. government securities U.S. government securities US Government Debt Securities [Member] 6.150% Senior Notes due 2037 Senior Notes Due 2037 [Member] Senior Notes Due 2037 Equity index futures Equity Index Futures [Member] Equity Index Futures Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Embedded derivatives Embedded Derivative Financial Instruments [Member] 2027 Surplus Notes Surplus Notes Due 2027 [Member] Surplus Notes Due 2027 Transfers from Level 3 to Level 2 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers From Level 3 To Level 2 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers From Level 3 To Level 2 Minimum cash advance request Line Of Credit Facility, Minimum Cash Advance Request Line Of Credit Facility, Minimum Cash Advance Request Effect of expected policyholder behavior Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption Residential Real Estate With Supported Guarantees Residential Real Estate With Supported Guarantees [Member] Residential Real Estate With Supported Guarantees Reconciliation to Condensed Consolidated Balance Sheets Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Fair Value, Separate Account Investment [Line Items] Fair Value, Separate Account Investment [Line Items] Common stock issued to TPG (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Accrued interest written off Debt Securities, Available-for-Sale, Accrued Interest, Allowance for Credit Loss, Writeoff Debt Securities, Available-for-Sale, Accrued Interest, Allowance for Credit Loss, Writeoff Debt Disclosure [Abstract] Deferrals of acquisition costs Deferred Policy Acquisition Cost, Capitalization Benefits attributed to guaranteed benefit features Benefits, Variable Annuity Benefit Reserves Benefits, Variable Annuity Benefit Reserves Segment Information Segment Reporting [Text Block] Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Payments on debt Repayments of Other Debt Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Schedule of Separate Account Balances Fair Value, Separate Account Investment [Table Text Block] Liabilities Liabilities Liabilities [Abstract] Proceeds from debt Proceeds from Other Debt Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Limited partnerships Partnership Interest [Member] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Securities lending Offsetting Securities Loaned [Abstract] Derivative Derivative [Member] Financing receivables, accrued interest receivable Financing Receivable, Accrued Interest, after Allowance for Credit Loss Guaranteed Insurance Contract, Type of Benefit [Domain] Guaranteed Insurance Contract, Type of Benefit [Domain] Other liabilities Notes issued by consolidated VIEs, at fair value under fair value option/Other liabilities Notes issued by consolidated VIEs Other Liabilities Dividends on common stock Dividends, Common Stock Apartment Apartment Building [Member] Deferred Policy Acquisition Cost [Table] Deferred Policy Acquisition Cost [Table] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Shares issued and sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Realized gains on sale Realized gains on sale Debt Securities, Available-for-Sale, Realized Gain Beginning balance, including deferred profit liability Ending balance, including deferred profit liability Liability For Future Policy Benefit, Before Reinsurance, Deferred Profit Liability Liability For Future Policy Benefit, Before Reinsurance, Deferred Profit Liability Separate Account Assets and Liabilities Separate Account [Text Block] Securities loaned Securities Loaned, Fair Value Disclosure Securities Loaned, Fair Value Disclosure Exercise Price Award Exercise Price Allowance for Credit Loss Debt Securities, Maturity, Allocated and Single Maturity Date, Allowance For Credit Loss [Abstract] Debt Securities, Maturity, Allocated and Single Maturity Date, Allowance For Credit Loss Credit Rating, NRSRO [Domain] Credit Rating, NRSRO [Domain] Credit Rating, NRSRO [Domain] Segment Reporting [Line Items] Segment Reporting [Line Items] Fair Value, Separate Account Investment [Table] Fair Value, Separate Account Investment [Table] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Transfers from Level NAV to Level 3 Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers From NAV To Level 3 Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers From NAV To Level 3 5.670% Senior Notes due 2032 Senior Notes Due 2032 [Member] Senior Notes Due 2032 Proceeds from sales of available-for-sale debt securities Proceeds from Sale of Debt Securities, Available-for-Sale Limited partnerships Investments In Limited Partnerships Investments In Limited Partnerships Due after 10 years through 20 years Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Repayments of debt of consolidated investment entities Repayments of Long-Term Debt Less than 12 months, fair value Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months Schedule of Debt Securities - Amortized Cost, Gross Unrealized Gains and Losses, Fair Value and Allowance for Credit Loss and Maturities Marketable Securities [Table Text Block] Preferred stock, liquidation preference (in usd per share) Preferred Stock, Liquidation Preference Per Share Liabilities Derivative Liability [Abstract] 0.00%-1.50% Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0150 [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0150 Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Recorded investment Financing Receivable, Impaired, Recorded Investment Financing Receivable, Impaired, Recorded Investment Equity Component [Domain] Equity Component [Domain] Deferred acquisition costs Balance, beginning of period Balance, end of period Deferred Policy Acquisition Cost Total Realized/Unrealized Gains (Losses) Included in Net Income (Loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Measurement Input Type [Domain] Measurement Input Type [Domain] Mortgage loans Loans Receivable, Fair Value Disclosure Benefits and Expenses Benefits, Losses and Expenses [Abstract] Schedule of Long Term and Short Term Debt Instruments [Table] Schedule of Long Term and Short Term Debt Instruments [Table] Schedule of Long Term and Short Term Debt Instruments Net assessments collected Assessments Additional Liability, Net Assessments Collected Additional Liability, Net Assessments Collected Sale of stock, consideration received Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] Unfunded partnership investment commitment Unfunded Partnership Investment Commitment [Member] Unfunded Partnership Investment Commitment Reserves: Funds Held under Reinsurance Agreements, Asset [Abstract] Funds Held under Reinsurance Agreements, Asset Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Surrenders, withdrawals, and benefits Separate Account, Liability, Surrender and Withdrawal Other Liabilities Disclosure [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] TPG Inc. common stock acquired Stock Acquired Stock Acquired Debt securities in an unrealized loss position, percentage Debt Securities In Unrealized Loss Position, Percentage Debt Securities In Unrealized Loss Position, Percentage Percent of Total Debt Securities Carrying Value Debt Securities, Percentage Debt Securities, Percentage Gross Amounts Offset in the Condensed Consolidated Balance Sheets Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Subject to Master Netting Arrangement, Asset Offset Gross interest income Interest Income, Securities, US Treasury and Other US Government Schedule of Market Risk Benefit, Activity Market Risk Benefit, Activity [Table Text Block] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Letter of Credit Letter of Credit [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Average recorded investment Financing Receivable, Impaired, Average Recorded Investment Financing Receivable, Impaired, Average Recorded Investment All Adjustments to Compensation All Adjustments to Compensation [Member] Annuity benefits Annuitization Benefit [Member] Derivatives excluding funds withheld under reinsurance treaties and non-qualified voluntary deferred compensation plan Derivatives Excluding Funds Withheld Under Reinsurance Treaties [Member] Derivatives Excluding Funds Withheld Under Reinsurance Treaties Corporate and Other Corporate and Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Closed Block Life Liability For Future Policy Benefit, Before Reinsurance, Additional Liabilities For Insurance Guarantees Liability For Future Policy Benefit, Before Reinsurance, Additional Liabilities For Insurance Guarantees Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation 1 Basis Point-50 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 [Member] Reserves for future policy benefits Liability for Future Policy Benefit, before Reinsurance Fair Value Debt Securities, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Debt Securities, Maturity, Allocated and Single Maturity Date, Fair Value Income Statement [Abstract] Document Transition Report Document Transition Report Weighted average duration (years) Liability for Future Policy Benefit, Weighted-Average Duration Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Net gains (losses) excluding derivatives and funds withheld assets Gain (Loss) on Investments Deferred income taxes, net Deferred Income Tax Assets, Net Debt Securities, at fair value under fair value option Fair value option, debt securities Debt Securities, Fair Value Option Debt Securities, Fair Value Option Due in 1 year or less Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, Year One Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, Year One Intersegment eliminations Intersegment Eliminations [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] 2036 Senior Notes Senior Notes Due 2036 [Member] Senior Notes Due 2036 Reinsurance recoverable, net of allowance for credit losses of $32 and $30 at September 30, 2026 and December 31, 2025, respectively Reinsurance recoverable on market risk benefits Total Reinsurance Recoverables, Including Reinsurance Premium Paid Separate account liabilities Separate account liabilities Balance as of beginning of period Balance as of end of period, gross Separate Account, Liability Other Commitments [Domain] Other Commitments [Domain] City Area Code City Area Code Document Information [Table] Document Information [Table] Due after 1 year through 5 years Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year One Through Five Debt Securities, Allowance For Credit Loss, Maturity, Allocated And Single Maturity Date, After Year One Through Five Subsequent Events Subsequent Events [Text Block] Long-term Equity Volatility Measurement Input, Price Volatility [Member] Reinsurance recoverable on market risk benefits GMIB Reinsurance Recoverable GMIB Reinsurance Recoverable Debt Debt Debt Instrument, Fair Value Disclosure Other Other Property [Member] Debt maximum issuable amount Debt Instrument, Maximum Issuable Amount Debt Instrument, Maximum Issuable Amount Name Forgone Recovery, Individual Name 12 months or longer, # of securities Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer, Number Of Positions Debt Securities, Continuous Unrealized Loss Position, 12 Months Or Longer, Number Of Positions Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Interest credited Policyholder Account Balance, Interest Expense, Gross Of Reinsurance Policyholder Account Balance, Interest Expense, Gross Of Reinsurance Entity [Domain] Entity [Domain] Less than 12 months, # of securities Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Number of Positions Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Number of Positions Total, gross unrealized losses Debt Securities, Unrealized Loss Position, Accumulated Loss Debt Securities, Unrealized Loss Position, Accumulated Loss Change in deferred tax asset OCI, Increase (Decrease) In Deferred Tax Asset, Before Reclassifications, Net Of Tax OCI, Increase (Decrease) In Deferred Tax Asset, Before Reclassifications, Net Of Tax Repurchase agreements Assets Sold under Agreements to Repurchase, Repurchase Liability Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Policyholder Account Balance [Table] Policyholder Account Balance [Table] Change in unrealized gains (losses) of investments OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Range of Guaranteed Minimum Crediting Rate Policyholder Account Balance, Guaranteed Minimum Credit Rating Reserves for future policy benefits, after reinsurance recoverable Liability for Future Policy Benefit, after Reinsurance Derivative assets by counterparty Derivative Assets By Counterparty Derivative Assets By Counterparty Debt securities acquired from exchanges, payments-in-kind, and similar transactions Debt Securities Acquired From Noncash Transactions Debt Securities Acquired From Noncash Transactions Nonoperating Gains (Losses) [Abstract] Nonoperating Gains (Losses) [Abstract] Funds withheld payable under reinsurance treaties, fair value under fair value option Funds Held Under Reinsurance Agreements, Fair Value Option Funds Held Under Reinsurance Agreements, Fair Value Option Measurement Basis [Axis] Measurement Basis [Axis] Gross Amounts Offset in the Condensed Consolidated Balance Sheets Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Total Operating Benefits and Expenses Total operating benefits and expenses Benefits, Losses and Expenses, Operating Benefits, Losses and Expenses, Operating Total investments Investments Subsequent Event Type [Domain] Subsequent Event Type [Domain] Revision of Prior Period [Domain] Revision of Prior Period [Domain] Net unrealized gain (loss) AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Trust account assets Asset, Held-in-Trust Schedule of Quantitative Information on Significant Internally-Priced Level 3 Assets and Liabilities Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Reinsurance quota share basis Reinsurance, Percentage Of Basis Reinsurance, Percentage Of Basis Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Cumulative effect of changes in shadow adjustments Effect Of Application Of Accounting Standards Update 2018-12, Adjustments For The Changes In Shadow Adjustments [Member] Effect Of Application Of Accounting Standards Update 2018-12, Adjustments For The Changes In Shadow Adjustments [Member] Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Liabilities Liabilities, Fair Value Disclosure [Abstract] Contributions from partners of consolidated investments Proceeds from Contributions from Affiliates Derivative Investments, Excluding Non-Qualified Voluntary Deferred Compensation Derivative Investments, Excluding Non-Qualified Voluntary Deferred Compensation [Member] Derivative Investments, Excluding Non-Qualified Voluntary Deferred Compensation Due in 1 year or less Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, Year One Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, Year One Net transfers from (to) separate accounts Transfer to (from) Policyholder Account Balance (to) from Separate Account Change in current discount rate related to reserve for future policy benefits, net of tax expense (benefit) of $55 and $(19), for the three months ended September 30, 2026 and 2025, respectively, and $68 and $(42), for the nine months ended September 30, 2026 and 2025, respectively. OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment and Tax Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] 2029 Long-Term Debt, Maturity, Year Three Extension of term Financing Receivable, Modified, Weighted-Average Term Increase from Modification Other Product Lines Other Product Lines Separate Account, Other [Member] Separate Account, Other Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Due after 10 years through 20 years Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Ten Through Year Twenty Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Ten Through Year Twenty Schedule of Changes in Number of Shares of Common Stock Outstanding Schedule of Stockholders Equity [Table Text Block] Net Investment Income [Line Items] Net Investment Income [Line Items] Financial Instruments [Domain] Financial Instruments [Domain] 51 Basis Points-150 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 [Member] Additions from purchase of PCD mortgage loans Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Other income Other income (loss) Other Income Freestanding derivative instruments Assets Fair Value Net Amounts Presented in the Condensed Consolidated Balance Sheets Freestanding derivative instruments Derivative Asset Derivatives related to funds withheld under reinsurance treaties Derivatives Related To Funds Withheld Under Reinsurance Treaties [Member] Derivatives Related To Funds Withheld Under Reinsurance Treaties Underlying Securities Award Underlying Securities Amount Cost of hedging Derivative Instrument, Cost Of Hedging Derivative Instrument, Cost Of Hedging Less: Comprehensive income (loss) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fair 
Value Fair Value Estimate of Fair Value Measurement [Member] Beginning balance at original discount rate Ending balance at original discount rate Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Cash Flow and Reinsurance Corporate securities, collateral upgrade Interest Income, Securities, Collateral Upgrade, US Treasury and Other US Government Interest Income, Securities, Collateral Upgrade, US Treasury and Other US Government Cash and cash equivalents Cash Effect of actual variances from expected experience Additional Liability, Long-Duration Insurance, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Payout Annuities Payout Annuity Payout Annuity [Member] Payout Annuity Separate Account, Liability [Line Items] Separate Account, Liability [Line Items] Reductions from charge-offs Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Preferred Stock Preferred Stock [Member] Other investing activities Payment for (Proceeds from) Other Investing Activity Investment performance / change in value of equity option Policyholder Account Balance, Increase (Decrease) from Other Change 70% - 80% Debt-To-Value Ratio, 70 To 80 Percent [Member] Debt-To-Value Ratio, 70 To 80 Percent Segment Reporting [Table] Segment Reporting [Table] Total, # of securities Debt Securities, Unrealized Loss Position, Number of Positions Debt Securities, Unrealized Loss Position, Number of Positions Modified loans, unfunded commitment Amortized Cost Basis Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Change in unrealized gains (losses) - other OCI, Other, Unrealized Gain (Loss), Before Reclassifications, Net Of Tax OCI, Other, Unrealized Gain (Loss), Before Reclassifications, Net Of Tax Decrease in fair value of notes issued Notes Issued At Fair Value, Period Increase (Decrease) Notes Issued At Fair Value, Period Increase (Decrease) Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Fair Value, beginning of period Fair Value, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Interest credited on other contract holder funds, gross Interest Credited to Policy Owner Account Reinsurance recoverable on market risk benefits, measurement input Reinsurance Recoverables, Measurement Input Reinsurance Recoverables, Measurement Input Less than 12 months, gross unrealized losses Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Accumulated Loss Debt Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Accumulated Loss Current Fiscal Year End Date Current Fiscal Year End Date Current discount rate Liability for Future Policy Benefit, Current Weighted-Average Discount Rate Registered index linked annuity embedded derivatives RILA embedded derivatives Registered Index Linked Annuity (RILA) Derivative [Member] Registered Index Linked Annuity (RILA) Derivative Net transfers from (to) separate accounts Transfers From (To) Separate Accounts Transfers From (To) Separate Accounts 5.170% Senior Notes due 2027 Senior Notes Due 2027 [Member] Senior Notes Due 2027 Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Provision (release) Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Derivative [Line Items] Derivative [Line Items] Due after 5 years through 10 years Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Five Through Year Ten Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Five Through Year Ten Due after 20 years Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Twenty Debt Securities, Accumulated Gross Unrealized Gain, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Twenty Transfers from Level 2 to Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers From Level 2 To Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers From Level 2 To Level 3 Due after 10 years through 20 years Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Ten Through Twenty Shares repurchased under repurchase program (in shares) Stock Repurchased During Period, Shares Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Common stock dividends paid per share (in usd per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Office Office Building [Member] Alt-A Alt-A [Member] Alt-A Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Preferred stock dividends paid per share (in usd per share) Preferred Stock, Dividends Per Share, Declared Measure: Measure [Axis] Schedule of Asset and Liability Information for Consolidated VIEs Schedule of Variable Interest Entities [Table Text Block] On or after March 30, 2028 Redemption Period Three [Member] Redemption Period Three Other borrowings on mortgage-related securities and commercial mortgage loans Borrowings On Mortgage-Related Securities And Commercial Mortgage Loans Borrowings On Mortgage-Related Securities And Commercial Mortgage Loans Schedule of Roll forward of the Separate Account Balance Separate Account, Liability [Table Text Block] Treasury stock (in shares) Beginning balance, Treasury Stock (in shares) Ending balance, Treasury Stock (in shares) Treasury Stock, Common, Shares Premiums Premiums Premiums Earned, Net Withdrawal Measurement Input, Withdrawal Rate [Member] Accumulated other comprehensive income, tax (benefit) AOCI Tax, Attributable to Parent Funds withheld embedded derivative Funds Withheld Embedded Derivative [Member] Funds Withheld Embedded Derivative Equity Components [Axis] Equity Components [Axis] Funds withheld payable under reinsurance treaties (including $3,724 and $3,723 at fair value under the fair value option at September 30, 2026 and December 31, 2025, respectively) Funds withheld payable under reinsurance treaties Total liabilities Funds Held under Reinsurance Agreements, Liability Related Party Related Party [Member] Greater than 2.50% Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Greater Than 0250 [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Greater Than 0250 Income taxes paid (received) Income Tax Paid, after Refund Received Deferred tax assets valuation allowance Deferred Tax Assets, Valuation Allowance Separate Account Asset Category [Domain] Separate Account Asset Category [Domain] Entity Interactive Data Current Entity Interactive Data Current Effects of Reinsurance [Line Items] Effects of Reinsurance [Line Items] Less: Net income (loss) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Market risk benefit, liabilities, measurement input Market Risk Benefit, Liability, Measurement Input Market Risk Benefit, Liability, Measurement Input Derivative assets, held collateral Derivative Asset, Fair Value of Collateral Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Entity Small Business Entity Small Business Comprehensive income (loss) attributable to Jackson Financial Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent All Annuity Accounts All Annuity Accounts [Member] All Annuity Accounts Operating Costs and Other Expenses Operating Costs And Other Expenses [Text Block] Operating Costs And Other Expenses Less than 1.00x Debt Service Coverage Ratio, Less Than 1.00X [Member] Debt Service Coverage Ratio, Less Than 1.00X Due after 1 year through 5 years Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year One Through Year Five Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year One Through Year Five Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Separate Accounts Disclosure [Abstract] Interest accrual Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense Document Type Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Equity Separate Account, Equity Security [Member] Debt securities, available for sale, allowance for credit losses Beginning Balance Ending Balance Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Unfunded loan and debt securities commitments Unfunded Loan And Debt Securities Commitments [Member] Unfunded Loan And Debt Securities Commitments Included in OCI Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Debt Service Coverage Ratios [Domain] Debt Service Coverage Ratios [Domain] Debt Service Coverage Ratios [Domain] Subsequent Event [Line Items] Subsequent Event [Line Items] Pre-tax reconciling items from adjusted operating income to net income (loss) attributable to Jackson Financial Inc.: Segment Non Operating Adjustments [Abstract] Segment Non Operating Adjustments Statement of Stockholders' Equity [Abstract] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Issuance of debt of consolidated investment entities Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Schedule of Long Term and Short Term Debt Instruments [Line Items] Schedule of Long Term and Short Term Debt Instruments [Line Items] Schedule of Long Term and Short Term Debt Instruments Bond forwards Bond Forwards [Member] Bond Forwards Allowance for Credit Loss Allowance for Credit Loss Debt Securities, Allowance for Credit Loss Debt Securities, Allowance for Credit Loss Pretax income (loss) Pretax adjusted operating earnings Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Commitments, Contingencies, and Guarantees (see Note 16) Commitments and Contingencies Other future policy benefits and claims payable Liability For Future Policy Benefit, Before Reinsurance, Other Insurance And Annuity Liabilities Liability For Future Policy Benefit, Before Reinsurance, Other Insurance And Annuity Liabilities Other Other Operating Gain (Loss) Other Operating Gain (Loss) Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Income Tax Contingency [Table] Income Tax Contingency [Table] Account values, percentage Policyholder Account Balance, Percentage Policyholder Account Balance, Percentage Account values with crediting rates Policyholder Account Balance Executive Category: Executive Category [Axis] Deposits Policyholder Account Balance, Issuance Due after 20 years Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Twenty Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Twenty Tax expense recorded to other comprehensive income Other Comprehensive Income (Loss), Tax Counterparty Name [Axis] Counterparty Name [Axis] Liabilities and Equity Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] Reserves Funds Held under Reinsurance Agreements, Asset Reinsurance Reinsurance [Text Block] Additional Liability, Long-Duration Insurance [Roll Forward] Additional Liability, Long-Duration Insurance [Roll Forward] Athene Athene Life Re Ltd [Member] Athene Life Re Ltd Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Balance, beginning of period Balance, end of period Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Below investment grade Below investment grade securities External Credit Rating, Noninvestment Grade [Member] Amortization of deferred acquisition costs Amortization of deferred acquisition costs Expense (Income) From Amortization Of Deferred Acquisition Costs Expense (Income) From Amortization Of Deferred Acquisition Costs PEO Name PEO Name Number of retro treaties Number Of Retro Treaties Number Of Retro Treaties Assets Reinsurance Assets [Abstract] Securities on deposit with regulatory authorities Securities Reserve Deposit Required and Made Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Mortgage loans Mortgage loans, at fair value under the fair value option Financing Receivable, Fair Value Option [Member] Financing Receivable, Fair Value Option Ratio of indebtedness to net capital Ratio of Indebtedness to Net Capital Current Financial Asset, Not Past Due [Member] Warehouse Warehouse [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Other Commitments [Line Items] Other Commitments [Line Items] Fair Value Debt securities Fair Value Debt securities Debt Securities Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Accident and health Accident and Health Insurance Product Line [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Investment grade Investment grade securities External Credit Rating, Investment Grade [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Share-based compensation Share-Based Payment Arrangement, Noncash Expense Purchases, Sales, Issuances and Settlements Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) Total net hedging results Net Hedging Results Net Hedging Results Cash surrender value Policyholder Account Balance, Cash Surrender Value Net Amount Security Sold under Agreement to Repurchase, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Basic (in usd per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Other product lines, end of period Present Value of Future Insurance Profits, Net Insider Trading Arrangements [Line Items] Schedule of Share Repurchase Activities Class of Treasury Stock [Table Text Block] Derivative liabilities by counterparty Derivative Liabilities By Counterparty Derivative Liabilities By Counterparty Amortization Deferred Policy Acquisition Costs, Amortization Expense Total Variable Annuities Variable Annuities Separate Account, Variable Annuities [Member] Separate Account, Variable Annuities Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Due after 20 years Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Twenty Debt Securities, Amortized Cost, Maturity, Allocated And Single Maturity Date, After Year Twenty Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Insurance [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change Equity Awards Adjustments Equity Awards Adjustments [Member] Fixed Annuity Fixed Annuities Fixed Annuity [Member] 2056 Senior Notes Senior Notes Due 2056 [Member] Senior Notes Due 2056 Interest accrual Interest Expense Additional Liability, Long-Duration Insurance, Interest Income (Expense) Corporate debt securities, financial services Corporate Debt Securities, Financial Services [Member] Corporate Debt Securities, Financial Services Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Net losses (gains) on funds withheld reinsurance treaties Net gains (losses) on funds withheld payable under reinsurance treaties Net Gains (Losses) On Funds Withheld Payable Under Reinsurance Treaties Net Gains (Losses) On Funds Withheld Payable Under Reinsurance Treaties Reserves for Future Policy Benefits and Claims Payable Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] Total Shareholders' Equity Parent [Member] Equity Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] Weighted average duration (years) Additional Liability, Long-Duration Insurance, Weighted-Average Duration General and administrative expenses General and administrative expenses General and Administrative Expense Debt securities Proceeds From Sale And Maturity Of Debt Securities Proceeds From Sale And Maturity Of Debt Securities Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Without single maturity Debt Securities, Allowance For Credit Loss, Maturity, Without Single Maturity Debt Securities, Allowance For Credit Loss, Maturity, Without Single Maturity Commercial mortgage-backed Commercial mortgage-backed Commercial Mortgage-Backed Securities [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Unfunded commitments Other Commitment Market risk benefits (gains) losses, net Net (gain) loss on market risk benefits Market risk benefits gains (losses), net Market Risk Benefit, Change in Fair Value, Gain (Loss) Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Debt Securities, Available-for-sale, Allowance for Credit Loss [Table] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table] Entity Filer Category Entity Filer Category A NRSRO, A Rating [Member] NRSRO, A Rating Market risk benefit liabilities Market Risk Benefit Liabilities [Member] Market Risk Benefit Liabilities Revision of Prior Period [Axis] Revision of Prior Period [Axis] Schedule of Gross and Net Information About Financial Instruments Subject to Master Netting Arrangements - Liabilities Offsetting Liabilities [Table Text Block] Coinsurance percentage Coinsurance Percentage Coinsurance Percentage BBB NRSRO, BBB Rating [Member] NRSRO, BBB Rating Net gains (losses) on derivative instruments Embedded derivative gain (loss) Gain (Loss) on Derivative Instruments, Net, Pretax Without single maturity Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, Without Single Maturity Date Debt Securities, Fair Value, Maturity, Allocated And Single Maturity Date, Without Single Maturity Date Due after 5 years through 10 years Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Five Through Year Ten Debt Securities, Accumulated Gross Unrealized Loss, Before Tax, Maturity, Allocated And Single Maturity Date, After Year Five Through Year Ten Deposits Additions to Contract Holders Funds Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] 1.51%-2.50% Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0151 To 0250 [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0151 To 0250 Investments, Debt and Equity Securities [Abstract] Net investment income: Net Investment Income [Abstract] Gross Amounts Offset in the Condensed Consolidated Balance Sheets Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Asset Offset Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Net income (loss) Net income (loss) Reclassifications, net of income taxes Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Freestanding derivative instruments Liabilities Fair Value Net Amounts Presented in the Condensed Consolidated Balance Sheets Freestanding derivative instruments Derivative Liability Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax expense (benefit) Income tax expense Income tax expense (benefit) Income Tax Expense (Benefit) Credit loss income (expense) on mortgage loans Financing Receivable, Credit Loss, Expense (Reversal) And Other (Gain) Loss Financing Receivable, Credit Loss, Expense (Reversal) And Other (Gain) Loss Effect of changes in equity index volatility Market Risk Benefit, Increase (Decrease) from Equity Market Change Balance, beginning of period Balance, end of period Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change Consolidation Consolidation, Policy [Policy Text Block] Offsetting Derivative Liabilities [Abstract] Offsetting Derivative Liabilities [Abstract] Single corporate obligor Single Corporate Obligor [Member] Single Corporate Obligor Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Pre-capitalized securities, sold by trust Pre-Capitalized Securities, Sold By Trust Pre-Capitalized Securities, Sold By Trust New Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Discounted cash flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Segment Reconciling Items Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Greater than 100% Debt-To-Value Ratio, Greater Than 100 Percent [Member] Debt-To-Value Ratio, Greater Than 100 Percent Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments Derivative Liability, Security Sold under Agreement to Repurchase, and Security Loaned, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Gross Amounts Recognized Derivative Asset, Subject to Master Netting Arrangement, before Offset Expected future gross premiums, discounted Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance Policyholder Account Balance [Roll Forward] Policyholder Account Balance [Roll Forward] Repurchase agreements - collateral upgrade Offsetting Securities Sold under Agreements to Repurchase, Collateral Upgrade [Abstract] Offsetting Securities Sold under Agreements to Repurchase, Collateral Upgrade Line of credit facility, option to extend, period (up to) Line Of Credit Facility, Option To Extend, Period Line Of Credit Facility, Option To Extend, Period Derivative Instruments and Hedging Activities Disclosure [Abstract]