Trading securities change in gross gain (loss) Trading Securities Change In Gross Gain (Loss) Trading Securities Change In Gross Gain (Loss) Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Non-Performance Risk Measurement Input, Credit Spread [Member] Reinsurance-Related Notes, December 31 2022 Reinsurance-Related Notes, December 31 2022 [Member] Reinsurance-Related Notes, December 31 2022 Banks, trusts and insurance companies Banks, Trust and Insurance, Equities [Member] Cumulative Basis Adjustments for Fair Value Hedges Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Net increase (decrease) in cash, invested cash and restricted cash Net increase (decrease) in cash, invested cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Schedule of Operating Lease Maturity Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Intangible Asset, Indefinite-Lived [Table] Intangible Asset, Indefinite-Lived [Table] Allowance for credit losses Allowance for Credit Losses Balance as of beginning-of-year Balance as of end-of-period Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Trading Symbol Trading Symbol Realized gain (loss) on equity securities Equity Securities, FV-NI, Realized Gain (Loss) Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] Gross amount of recognized assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Non-NEOs Non-NEOs [Member] Depositary Shares, each representing a 1/1000th interest in a share of 9.000% Non-Cumulative Preferred Stock, Series D Noncumulative Preferred Stock [Member] Utilization of GLB Withdrawls Measurement Input, Withdrawal Rate [Member] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] Deferred compensation mark-to-market adjustment, before tax Other Non Operating Adjustments, Deferred Compensation Mark-To-Market Adjustment, Before Tax Other Non Operating Adjustments, Deferred Compensation Mark-To-Market Adjustment, Before Tax Six months or greater, but less than nine months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Six To Nine Months, Accumulated Loss Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for more than six months, but less than nine. Lesser of LOC and XXX additional reserve as surplus Statutory Accounting Practices Lesser Of Loc And Xxx Additional Reserve As Surplus [Member] Lesser of the face amount of all amounts outstanding under a letter of credit and the value of the Valuation of Life Insurance Policies Model Regulation ("XXX") additional statutory reserves as an admitted asset and a form of surplus resulting from applying state permitted statutory accounting practices rather than statutory accounting practices permitted by National Association of Insurance Commissioners. 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 Disposal Group Name [Domain] Disposal Group Name [Domain] Line of Credit Facility [Table] Line of Credit Facility [Table] Reinsurance Reinsurance Accounting Policy [Policy Text Block] Maximum retention per single insured life on fixed and VUL insurance contracts Maximum Retention Per Single Insured Life On Fixed And Vul Insurance Contracts Maximum amount retained per single insured life issued on fixed and VUL insurance contracts. Movement in Present Value of Future Insurance Profits [Roll Forward] Movement in Present Value of Future Insurance Profits [Roll Forward] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Period in which loans no longer accrue interest Period In Which Loans No Longer Accrue Interest In Days The number of days overdue a loan may be before interest is no longer accrued Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] SOFR + 204 bps, due 2067 Due2067 [Member] This element represents SOFR +204 bps capital securities due 2067. Investment, Name [Domain] Investment, Name [Domain] Changes in Allowance for Credit Losses on Mortgage Loans on Real Estate Financing Receivable, Allowance for Credit Loss [Table Text Block] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Capital contribution to subsidiaries Capital Contribution To Subsidiaries The cash outflow for capital contribution to subsidiaries, which is eliminated in consolidation. Estimated Future Amortization Of VOBA Estimated Future Amortization Of VOBA [Table Text Block] This table presents the estimated future amortization of VOBA over the next five years, net of interest Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Investments [Line Items] Investments [Line Items] Investments [Line Items] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Year six and prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Corporate bonds Corporate Bond Securities [Member] Operating Segments Operating Segments [Member] Net cash provided by (used in) operating activities Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Reinsurance-related embedded derivative liabilities Deferred Tax Assets, Reinsurance Related Derivative The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to reinsurance related embedded derivative assets which can only be deducted for tax purposes when losses on such assets are realized, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Less than six months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Less Than Six Months This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than six months. Components and Changes in AOCI Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Financing Receivable, Nonaccrual [Line Items] Financing Receivable, Nonaccrual [Line Items] Summary of Gross Premiums and Interest Accretion Summary Of Gross Premiums And Interest Accretion [Table Text Block] Summary Of Gross Premiums And Interest Accretion Exercisable at end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Balance as of beginning-of-year, excluding shadow balance in AOCI Balance as of end-of-year, excluding shadow balance in AOCI Liability For Future Policy Benefits, Excluding Shadow Balance In AOCI Liability For Future Policy Benefits, Excluding Shadow Balance In AOCI Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Reclassification adjustment for gains (losses) included in net income (loss) Reclassification from AOCI, Current Period, before Tax, Attributable to Parent 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] Company Selected Measure Amount Company Selected Measure Amount Capital losses Deferred Tax Assets, Capital Loss Carryforwards Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Tabular List, Table Tabular List [Table Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Federal Home Loan Mortgage Corporation Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] Less: Amount representing interest Finance Lease, Liability, Undiscounted Excess Amount Debt-service coverage ratio indicating property income not covering debt payments Debt-Service Coverage Ratio Indicating Property Income Not Covering Debt Payments Debt-Service Coverage Ratio Indicating Property Income Not Covering Debt Payments Disclosure of Variable Interest Entities Assets and Liabilities [Table] Disclosure Of Variable Interest Entities Assets And Liabilities [Table] Disclosure of the assets and liabilities of consolidated variable interest entities, including the number of instruments held, notional amounts, and carrying value. Credit Facility [Domain] Credit Facility [Domain] Goodwill Net Goodwill as of Beginning- of-Year Net Goodwill as of End- of-Year Goodwill Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Fixed Maturity Available-For-Sale Securities - Fair Valuation Methodologies and Associated Inputs Available For Sale Securities Fair Valuation Methodologies [Policy Text Block] This element describes an entity's accounting policy for investments in debt and equity securities that are classified as available-for-sale. Specifically, these policies describe how the fair values of such securities are determined. Other Proceeds from (Payments for) Other Financing Activities Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for AFS Securities Collateral Obtained, Percent Of Fair Value Of Available-For-Sale Securities This item represents the percentage of the fair value of AFS securities obtained as collateral pledged. Performance adjustment (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Adjustment, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Adjustment, Weighted Average Grant Date Fair Value 2025 Finance Lease, Liability, to be Paid, Year One Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Summary of Policyholder Account Balances by Range Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Table Text Block] Summary of Balances of Changes in Net MRB (Assets) Liabilities Market Risk Benefit, Activity [Table Text Block] Indiana statutory limitation as a percentage of the insurer contract holder surplus Indiana Statutory Limitation As A Percentage of The Insurer Contract Holder Surplus In the event that LNL pays dividends to LNC that exceed the lesser of this percentage of the insurers contract holders surplus or the insurers net gain from operations over the previous 12 months, it must receive prior approval from the Indiana Insurance Commissioner. Effect of changes in equity index volatility Market Risk Benefit, Increase (Decrease) from Volatility Expiration Date Trading Arrangement Expiration Date Derivative liabilities Derivative Financial Instruments, Assets [Member] Number of missed payments to qualify as delinquent Loans Reported As Delinquent, Number Of Payments Loans Reported As Delinquent, Number Of Payments Reinsurer, Name [Axis] Reinsurer, Name [Axis] Variable Annuities Variable Annuity [Member] Total Shareholder Return Amount Total Shareholder Return Amount Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Present Value of Expected Net Premiums Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Transfers Out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Policyholder Liability Remeasurement Gain (Loss) Liability for Future Policy Benefit [Policy Text Block] Gross gains Debt Securities, Available-for-Sale, Realized Gain Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Other assets Other Assets Issuances Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance Liability for Future Policy Benefit, Activity [Line Items] Liability for Future Policy Benefit, Activity [Line Items] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Net premiums collected Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected Statutory Accounting Practices [Line Items] Statutory Accounting Practices [Line Items] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Change in our unrealized gain on derivative instruments in accumulated OCI AOCI Attributable to Parent, Net of Tax [Roll Forward] Deferred loss on reinsurance Deferred Tax Liabilities, Deferred Loss On Reinsurance Deferred Tax Liabilities, Deferred Loss On Reinsurance Net Income (Loss) Available to Common Stockholders Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Total deferred tax assets Deferred Tax Assets, Gross Summary of Balances and changes in Separate Account Liabilities Separate Account, Liability [Table Text Block] 11 - 30 Years Remaining Life 11 To 30 Years Total notional amounts of derivative financial instruments maturing in 11 - 30 years. Greater Than 90 Days Maturity Greater than 90 Days [Member] Concentration Risk Type [Domain] Concentration Risk Type [Domain] 7.00% notes, due 2040 Notes Due 2040 [Member] Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. This element represents 7.00% fixed rate senior notes due 2040. SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] Net change in collateral on investments, certain derivatives and related settlements Net Change In Collateral On Investments, Derivatives And Related Settlements Net Change In Collateral On Investments, Derivatives And Related Settlements In-force updates and other changes in MRBs Market Risk Benefit, Increase (Decrease) from Other Assumption Reinsurance-related Reinsurance Related [Member] We have certain modified coinsurance arrangements and coinsurance with funds withheld reinsurance arrangements with embedded derivatives related to the withheld assets of the related funds. These derivatives are considered total return swaps with contractual returns that are attributable to various assets and liabilities associated with these reinsurance arrangements. Year three Debt-Service Coverage Ratio, Year Three, Originated, Two Years Before Current Fiscal Year Debt-Service Coverage Ratio, Year Three, Originated, Two Years Before Current Fiscal Year Document Fiscal Period Focus Document Fiscal Period Focus Year four Debt-Service Coverage Ratio, Year Four, Originated, Three Years Before Current Fiscal Year Debt-Service Coverage Ratio, Year Four, Originated, Three Years Before Current Fiscal Year All Executive Categories All Executive Categories [Member] Equity securities Equity Securities [Member] LTV 65% to 75% Loan To Value Ratio Sixty Five To Seventy Five [Member] Loan To Value Ratio Sixty Five To Seventy Five [Member] ASSETS Assets [Abstract] Total other comprehensive income (loss), net of tax Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Document Type Document Type Derivative Contract Type [Domain] Derivative Contract [Domain] Net financing cash proceeds related to closing Fortitude Re reinsurance transaction Proceeds From Reinsurance Agreements, Financing Activities Proceeds From Reinsurance Agreements, Financing Activities Gains (losses) on other non-financial assets - sale of subsidiaries/businesses Gains (Losses) On Other Non-Financial Assets, Sale Of Subsidiaries Or Businesses Gains (Losses) On Other Non-Financial Assets, Sale Of Subsidiaries Or Businesses 60 to 89 days past due Financial Asset, 60 to 89 Days Past Due [Member] Net amount at risk Policyholder Account Balance, Net Amount at Risk DSI Deferred Sales Inducements Disclosure [Table Text Block] This element may be used as a single block of text to encapsulate the entire disclosure, including data and tables, pertaining to the nature and amount of deferred sales inducements associated with insurance contracts. Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Reinsurance recoverable, allowance for credit loss Reinsurance Recoverable, Allowance for Credit Loss Commissions and Other Expenses Commissions And Other Expenses Disclosure [Text Block] Discloses the detail of commissions and other expenses. Description of restructuring activities including exit and disposal activities; this description does not include restructuring costs in connection with a business combination or discontinued operations and long-lived assets (disposal groups) sold or classified as held for sale. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables. RBC ratio, low end RBC Ratio Company Action Level Low End The low end of the risk-based capital percentage range that requires an insurer to submit a plan to the regulator detailing corrective action it proposes to undertake Investment Type [Axis] Investment Type [Axis] Schedule of Stock Option Valuation Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Statistical Measurement [Axis] Statistical Measurement [Axis] Interest credited Policyholder Account Balance, Interest Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Fixed maturity AFS securities: Debt Securities, Available-for-Sale, Gain (Loss) [Abstract] Income (loss) before taxes Income (loss) before taxes Income (loss) before federal income taxes, equity in income (loss) of subsidiaries Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Less Than 1 Year Remaining Life Less Than 1 Year Total notional amounts of derivative financial instruments maturing in less than 1 year. Origination Year Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] Conservative Reg 213 reserves on variable annuity and individual life contracts Conservative Reserves On Ul Contract And Secondary Guarantees [Member] Conservative reserves on UL contract and secondary guarantees [Member] Fee income Insurance Commissions and Fees Total federal income tax asset (liability) Income Tax Assets (Liabilities), Net Carrying amount as of the balance sheet date of the total net federal income tax asset or liability consisting of the sum of net currently payable income taxes and net deferred income taxes. Operating Segments and Corporate Non Segment Operating Segments And Corporate Non Segment [Member] Operating Segments And Corporate Non Segment Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Reinsurance assumed Assumed from Other Companies Assumed Premiums Earned Investment, Name [Axis] Investment, Name [Axis] Average deferred compensation shares (in shares) Average Deferred Compensation Shares The deferred compensation plans allow participants to invest in LNC stock. The weighted average number of deferred compensation shares to be included in earnings per share calculations is calculated using an arithmetical mean of our deferred compensation shares outstanding during the period. Excess non-cash collateral pledged Excess Non-Cash Collateral Pledged Excess Non-Cash Collateral Pledged Hybrid and redeemable preferred securities Hybrid And Redeemable Preferred Securities [Member] This category includes information about securities with both debt and equity characteristics as well as preferred stock that may be redeemed at a predetermined time and/or price. Net assessments collected Liability for Future Policy Benefit, Expected Future Policy Benefit, Net Assessments Collected Liability for Future Policy Benefit, Expected Future Policy Benefit, Net Assessments Collected Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Reductions for securities disposed Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sold Structured securities (RMBS, CMBS, ABS) Structured Securities [Member] Structured securities (ABS, MBS, CLOs) Balance Sheets [Abstract] Statement of Financial Position [Abstract] Year one Debt-Service Coverage Ratio, Current Fiscal Year Debt-Service Coverage Ratio, Current Fiscal Year ABS Asset-Backed Securities [Member] Fair Value, Separate Account Investment [Line Items] Fair Value, Separate Account Investment [Line Items] Items Included in Net Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Non-cash collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Other Deferred Tax Liabilities, Other Non-Qualifying Hedges Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net At Guaranteed Minimum Policyholder Account Balance, at Guaranteed Minimum Crediting Rate [Member] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Separate account liabilities Balance as of beginning-of-year Balance as of end-of-year Separate Account, Liability Movement in Deferred Sales Inducements [Roll Forward] Movement in Deferred Sales Inducements [Roll Forward] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Commitments and Contingencies Disclosure [Abstract] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] 2027 Present Value of Future Insurance Profits, Expected Amortization, Year Three Weighted-average assumptions: Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance Derivative Instruments and Hedging Activities Disclosure [Abstract] Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Net annuity product features, pre-tax Net Annuity Product Features, Before Tax Net Annuity Product Features, Before Tax Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Cost or Amortized Cost SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Cost Deferrals Deferred Policy Acquisition Cost, Capitalization LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Cash and invested cash Separate Account, Cash and Cash Equivalents [Member] Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Restatement Determination Date Restatement Determination Date Vested or expected to vest at end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Schedule of Available-for-Sale Securities Reconciliation Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Outstanding at beginning of year (in dollars per share) Outstanding at end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Payables for Collateral on Investments Schedule of Securities Financing Transactions [Table Text Block] Outstanding at beginning of year (in shares) Outstanding at end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Condensed Financial Information Disclosure [Abstract] Net Investment Income Net Investment Income [Policy Text Block] Describes an entity's accounting policy for recognizing net investment income, including the basis for measurement. Lease Contractual Term [Axis] Lease Contractual Term [Axis] Reinsurance Amounts Recorded on Consolidated Statements of Income (Loss) Reinsurance Amounts [Table Text Block] Disclosure of insurance premiums and fees, net which have been written directly, ceded to or assumed from another insurance company, including net insurance benefits. Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract] Preferred stock, annual rate reset, period Preferred Stock, Annual Rate Reset, Period Preferred Stock, Annual Rate Reset, Period Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other revenues Other Income Term Loan Due July 16, 2027 Term Loan Due July 16, 2027 [Member] Term Loan Due July 16, 2027 Unrecognized Tax Benefits [Roll Forward] Unrecognized Tax Benefits [Roll Forward] Future Estimated Amortization of Specifically Identifiable Intangible Assets Finite Lived Intangible Assets Future Amortization Expense [Table Text Block] Disclosure of future amortization expense for finite-lived intangible assets. New Accounting Standards Accounting Standards Update and Change in Accounting Principle [Table Text Block] 6.15% notes, due 2036 Notes Due 2036 [Member] Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. This element represents 6.15% fixed rate senior notes due 2036. Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Entity Public Float Entity Public Float Disposal Group Name [Axis] Disposal Group Name [Axis] 6 - 10 Years Remaining Life 6 To 10 Years Total notional amounts of derivative financial instruments maturing in 6 - 10 years. Common stock dividends payable Dividends Payable Volatility Measurement Input, Price Volatility [Member] 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] Sale-Leaseback Arrangements Sale Leaseback Arrangements [Member] Sale-Leaseback Arrangements [Member] Reinsurance recoverables, net of allowance for credit losses Reinsurance Recoverables, Including Reinsurance Premium Paid Local Phone Number Local Phone Number Market risk benefit assets Assets Market Risk Benefit, Asset, Amount Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Total operating expenses Operating Expenses Net income (loss) per share: Earnings Per Share, Basic And Diluted EPS [Abstract] Earnings Per Share, Basic And Diluted EPS Ceded to Other Companies SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Ceded Current discount rate Liability for Future Policy Benefit, Current Weighted-Average Discount Rate Weighted-Average Remaining Contractual Term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Deposits assets Deposits Assets Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Investment activity Deferred Tax Liabilities, Investments Cumulative fair value hedging adjustment included in the amortized cost of the hedged assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) PEO Total Compensation Amount PEO Total Compensation Amount Gross amount of recognized liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Commissions Insurance Commissions CONDENSED SUPPLEMENTARY INSURANCE INFORMATION SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Disclosure [Text Block] Adjustment arising during the year Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Exposure associated with collateralization events Credit Derivative, Maximum Exposure, Undiscounted Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Vested or expected to vest at end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Retirement Plan Services Retirement Plan Services Segment [Member] Retirement Plan Services segment provides employer-sponsored variable and fixed annuities, defined benefit, individual retirement accounts and mutual-fund based programs in the retirement plan marketplaces. Debt Disclosure [Abstract] Fixed Maturity AFS Securities - Evaluation for Recovery of Amortized Cost Available For Sale Securities Evaluation For Recovery Of Amortized Cost [Policy Text Block] This element describes an entity's accounting policy for investments in debt and equity securities that are classified as available-for-sale. Specifically, these policies describe how the entity determines whether impairments of available-for-sale securities are other than temporary. Accrued investment income Increase (Decrease) in Accrued Investment Income Receivable Condensed Financial Statements [Table] Condensed Financial Statements [Table] DFEL Deferred Front End Loads Disclosure [Table Text Block] This element may be used as a single block of text to encapsulate the entire disclosure, including data and tables, pertaining to the nature and amount of deferred front end loads associated with insurance contracts. Statutory accounting practices, statutory amount available for dividend payments Statutory Accounting Practices, Statutory Amount Available for Dividend Payments Notional Amounts Variable Interest Entity, Primary Beneficiary, Maximum Loss Exposure, Amount Amount of amortization, after-tax, of deferred gain on business sold Amortization Of Deferred Gain On Business Sold Amount, after-tax, of deferred gain on business sold through reinsurance amortized into income during the period. Interest accretion Liability for Future Policy Benefit, Interest Expense Entity Central Index Key Entity Central Index Key Other Segment Reporting, Other Segment Item, Amount Balance as of beginning-of-year Balance as of end-of-period Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change Unrecognized tax benefits, income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Current maturities of long-term debt Long-Term Debt, Current Maturities Effect of changes in future expected assumptions Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption 2029 Present Value of Future Insurance Profits, Expected Amortization, Year Five Effects of Qualifying and Non-Qualifying Hedges Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Effect of changes in equity markets Market Risk Benefit, Increase (Decrease) from Equity Market Change Deferrals Present Value Of Future Insurance Profits Deferrals Total amount of additions in present value of future profits asset from sources other than acquisitions of insurance entities during the income statement period. Policyholder Account Balance [Abstract] Policyholder Account Balance [Abstract] New Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Fair value Loans Receivable, Fair Value Disclosure Balance as of beginning-of-year Balance as of end-of-year Unrecognized Tax Benefits City Area Code City Area Code Auditor Location Auditor Location Securities pledged under securities lending agreements Increase Decrease In Cash Collateral For Securities Lending Agreements The net change during the reporting period in the amount of cash that is received related to securities pledged under securities lending agreements. Deferred Policy Acquisition Cost [Line Items] Deferred Policy Acquisition Cost [Line Items] Change in Our Unrealized Gain on Derivative Instruments in AOCI Change In Our Unrealized Gain On Derivative Instruments In Accumulated Other Comprehensive Income [Table Text Block] Presents in tabular form the change in unrealized gain (loss) on derivative instruments in accumulated other comprehensive income. Fair Value Option, Disclosures Fair Value Option, Disclosures [Table Text Block] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Net transfers from (to) general account Transfer To From Policyholder Account Balance To From General Account Transfer To From Policyholder Account Balance To From General Account. Stockholders' Equity Note [Abstract] Equity market contracts Equity Contract [Member] Insurance liabilities and reinsurance-related balances Change In Insurance Liabilities And Reinsurance Related Balance Change In Insurance Liabilities And Reinsurance Related Balance Net Investment Income Investment Income [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Weighted-Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Stock options with service conditions Stock Options With Service Conditions [Member] A contract that gives the holder the right, but not the obligation, either to purchase or to sell a certain number of shares of stock at a predetermined price for a specified period of time. Contingent on service conditions. Net Income (Loss) Per Common Share Earnings Per Share [Abstract] Equity [Abstract] Retained earnings Retained Earnings (Accumulated Deficit) Schedule of Reclassifications Out of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Retirement/cancellation of shares (in shares) Stock Repurchased and Retired During Period, Shares Class of Stock [Domain] Class of Stock [Domain] Forfeited or expired (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Percentage of the fair value of foreign securities obtained as collateral under securities lending agreements. Collateral Obtained Percent Of Fair Value Securities Lending Agreements Foreign This item represents the percentage of the fair value of foreign securities obtained as collateral under securities lending agreements Number of days past due to qualify as delinquent Loans Reported As Delinquent In Days The number of days a loan may be past due before it is reported as delinquent Reconciliation of Income (Loss) from Operations by Segment to Consolidated Net Income (Loss) Reconciliation Of Income Loss From Operations From Segments To Consolidated Net Income Loss [Table Text Block] Tabular disclosure of all significant reconciling items in the reconciliation of total income (loss) from operations from reportable segments to the entitys consolidated net income (loss). 2026 Long-Term Debt, Maturity, Year Two Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Flooring impact of LFPB Liability for Future Policy Benefit, Expected Net Premium, Derecognition Underlying Securities Award Underlying Securities Amount Performance shares Performance Shares [Member] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Common stock dividends declared Dividends, Common Stock, Cash VOBA Present Value of Future Insurance Profits [Table Text Block] Amendment Flag Amendment Flag Subordinated notes Subordinated Debt [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Nine months or greater, but less than twelve months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Guaranty liabilities Guaranty Liabilities SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract] Due in one year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Fair Value Plan Asset Measurement [Domain] Fair Value Hierarchy and NAV [Domain] Banking regulation, mortgage banking, net worth, minimum Banking Regulation, Mortgage Banking, Net Worth, Minimum Policyholder Account Balances SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Debt instrument, face amount Debt Instrument, Face Amount Realized Gain (Loss) Gain (Loss) On Securities Disclosure [Text Block] Gain (Loss) On Securities Disclosure Entity Address, Postal Zip Code Entity Address, Postal Zip Code Benefit payments Market Risk Benefit, Benefit Payment Ceded MRBs Ceded Mrbs [Member] Ceded MRBs [Member] Beginning Fair Value Ending Fair Value Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Group Protection Group Protection Segment [Member] The Group Protection segment offers group life, disability and dental insurance to employers. U.S. government bonds US Government Debt Securities [Member] Fair Value Measured on a Recurring Basis Reconciliation Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Tabular disclosure of changes to our financial instruments carried at fair value and classified within Level 3. Withdrawals Separate Account, Liability, Withdrawal Revenue adjustments from annuity and life insurance product features Revenue Adjustments From Annuity And Life Insurance Product Features Revenue Adjustments From Annuity And Life Insurance Product Features Amortization of DAC and VOBA SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Derivative Instruments Derivative Instruments, Excluding Embedded Derivative Instruments [Member] Derivative Instruments, Excluding Embedded Derivative Instruments Policyholder Account Balances and Future Contract Benefits Policyholder Account Balances And Future Contract Benefits [Policy Text Block] Accounting policy pertaining to an insurance entity's net liability for future contract benefits and other contract holder funds to be paid to or on behalf of policyholders, describing the bases, methodologies and components of the reserve, and assumptions regarding estimates of expected investment yields, mortality, morbidity, terminations and expenses. Establishment of funds withheld liability in connection with a reinsurance transaction Establishment Of Funds Withheld Liability In connection With A Reinsurance Transaction Establishment Of Funds Withheld Liability In connection With A Reinsurance Transaction Equity Securities Equity Securities without Readily Determinable Fair Value [Policy Text Block] Fair value hedge on interest rate swap agreements Fair Value Hedge On Interest Rate Swap The fair value hedge associated with forward based contracts on certain long-term debt agreements in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period. Non-performance risk adjustment Derivative Credit Risk Valuation Adjustment, Derivative Assets Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Future Contract Benefits SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense 30-90 Days Maturity 30 to 90 Days [Member] Number of Instruments Derivative Asset, Number of Instruments Held Lender Concentration Risk Lender Concentration Risk [Member] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] Expected future benefit payments Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted, Before Reinsurance Liability for future policy benefit, expected future policy benefit, discounted, before reinsurance. Net income (loss) available to common stockholders Net income (loss) available to common stockholders – basic Net Income (Loss) Available to Common Stockholders, Basic Schedule of Available-for-Sale Securities Unrealized Loss Position Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Stock, Class of Stock [Table] Stock, Class of Stock [Table] Total assets Assets Deferrals Deferred Front End Loads Additions The amount of deferred front end loads capitalized during the period. Losses from loan modifications (less than) Financing Receivable, Modified in Period, Amount Increase (decrease) in loans from subsidiaries, net Increase (Decrease) In Loans From Subsidiaries, Net The net increase (decrease) associated with loans from subsidiaries Statutory Accounting Practice, Jurisdiction [Domain] Statutory Accounting Practice, Jurisdiction [Domain] Contingencies and Commitments (See Note 17) Contingencies and Commitments Commitments and Contingencies Net balance as of end-of-period, net of reinsurance Liability for Future Policy Benefit, after Reinsurance Short-term debt Short-Term Debt [Member] Reconciliation of effective tax rate differences Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Separate Accounts Separate Account [Text Block] Conservative valuation rate on certain annuities Statutory Accounting Practices Conservative Valuation Rate On Certain Variable Annuities [Member] Use of a more conservative valuation rate on certain variable annuities resulting from applying state permitted statutory accounting practices rather than statutory accounting practices permitted by National Association of Insurance Commissioners. 51-100 Basis Points Above Policyholder Account Balance Above Guaranteed Minimum Crediting Rate Range From0051 To0100 [Member] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 [Member]. MBS Collateralized Mortgage-Backed Securities [Member] Benefit payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment Maximum net premium ratio at individual cohort level Maximum Net Premium Ratio at Individual Cohort Level Maximum net premium ratio at individual cohort level. Other liabilities Other Liabilities Non-Qualifying Hedges Not Designated as Hedging Instrument [Member] Interest and Debt Expense Interest Expense, Policy [Policy Text Block] Purchases of alternative investments Payments To Acquire Alternative Investments Amount of cash outflow to acquire alternative investments. Debt Instrument [Axis] Debt Instrument [Axis] Market Risk Benefit [Line Items] Market Risk Benefit [Line Items] Preferred stock dividends declared Preferred Stock Dividends and Other Adjustments Common stock issued for benefit plans Common Stock Issued During Period For Benefit Plans The cash inflow associated with the amount received from the deferred compensation plan during the period. Collateral Posted by Counterparty Cash collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Trading Arrangement: Trading Arrangement [Axis] Total payables for collateral on investments Total Payables For Collateral On Investment Fair Value The total fair value of investments related to payables for collateral on investments as of the balance sheet date. Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change Nonaccrual Financing Receivable, Nonaccrual Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Total expenses Benefits, Losses and Expenses Balance as of end-of-year, net of reinsurance Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change Entity File Number Entity File Number Consolidated Entities [Domain] Consolidated Entities [Domain] Entity Address, Address Line One Entity Address, Address Line One Capital Loss Carryforward Capital Loss Carryforward [Member] Current Current Federal Tax Expense (Benefit) Entity Address, Address Line Two Entity Address, Address Line Two Reconciliation of DFEL Reconciliation Of Deferred Front End Loads Disclosure [Table Text Block] Reconciliation Of Deferred Front End Loads Disclosure RILA, fixed indexed annuity and IUL contracts Indexed annuity ceded embedded derivatives Indexed Annuity Contracts [Member] Embedded dervivatives within indexed annuity contracts that permit the holder to elect an interest rate return or an equity market component, where interest credited to the contracts is linked to the performance of the Standard and Poor's 500 Index. Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Deferred Tax Liabilities Components of Deferred Tax Liabilities [Abstract] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Decreases for prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Summary of Activity for Performance Shares Share-Based Payment Arrangement, Performance Shares, Activity [Table Text Block] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Deferred Compensation Plans Liabilities and Investments Deferred Compensation Plans Liabilities And Investments [Table Text Block] Disclosure of the total liabilities that represent currently earned compensation under compensation arrangements that is not actually paid until a later date and investments held to fund the liabilities associated with non-qualified, unfunded, deferred compensation plans for various groups: employees; agents; non-employee directors; and certain agents. Adjustment to Compensation: Adjustment to Compensation [Axis] Financial Liabilities Derivative Liability [Abstract] Carrying Value Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Summary of Discounted and Undiscounted Expected Future Gross premiums and Expected Future Benefit Payments Summary Of Discounted And Undiscounted Expected Future Gross Premiums And Expected Future Benefit Payments [Table Text Block] Summarizes of discounted and undiscounted expected future gross premiums and expected future benefit payments. Policy loans Policy Loans [Member] Excess non-cash collateral received Excess Non-Cash Collateral Received excess non-cash collateral received . Investment gains (losses) Investment Gains (Losses) Investment Gains (Losses) Fortitude Re Fortitude Re [Member] Fortitude Re Deferred acquisition costs, value of business acquired, deferred ales inducements and deferred front-end loads Deferred Acquisition Costs Value Of Business Acquired Deferred Sales Inducements And Deferred Front End Loads Deferrals And Interest Net Of Amortization Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front end loads deferrals and interest, net of amortization. Schedule of Investment Holdings Movements Schedule Of Investment Holdings Movements [Table Text Block] Schedule of investment holdings movements. Document Information [Table] Document Information [Table] Intent to sell impairments Debt Securities, Available-For-Sale, Intent To Sell Impairments Debt Securities, Available-For-Sale, Intent To Sell Impairments Entity Filer Category Entity Filer Category Weighted-average age of policyholders (years) Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age Series C Preferred Stock Depositary Shares Preferred Stock Depositary Share [Member] Preferred stock depositary share [Member]. Realized Gain (Loss) Debt And Equity Securities, Realized Gain (Loss) [Member] Debt And Equity Securities, Realized Gain (Loss) Statistical Measurement [Domain] Statistical Measurement [Domain] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] 4.35% notes, due 2048 Notes Due 2048 [Member] Due 2048 [Member] Mortgage-backed and asset-backed securities Mortgage Backed And Asset Backed Securities [Member] Mortgage-Backed And Asset-Backed Securities [Member] RBC ratio, high end RBC Ratio Company Action Level High End The high end of the risk-based capital percentage range that requires an insurer to submit a plan to the regulator detailing corrective action it proposes to undertake Total gross secured borrowings Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement Preferred stock, redemption percentage Preferred Stock, Redemption Percentage Preferred Stock, Redemption percentage. Term loan Term Loans [Member] Term Loans [Member] Gross amount of recognized assets Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Credit loss-related adjustments Credit Loss-Related Adjustments Credit Loss-Related Adjustments Additions for securities for which credit losses were not previously recognized Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not Previously Recorded Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Repayment (issuance) of policy loans, net Payments for (Proceeds from) Policy Loans Long-term debt Long-Term Debt [Member] Income taxes Income Taxes Paid, Net Compensation Expense by Award Type Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Three Financial Service Financial Service [Member] Funds withheld reinsurance-related liabilities – excluding embedded derivatives Reinsurance Related Liabilities Excluding Embedded Derivatives [Member] Reinsurance Related Liabilities Excluding Embedded Derivatives Goodwill [Line Items] Goodwill [Line Items] Operating lease expense Operating Lease, Cost Future contract benefits Net balance as of end-of-period Liability for Future Policy Benefit, before Reinsurance Federal income tax accruals Increase (Decrease) in Income Taxes Policyholder Account Balance [Line Items] Policyholder Account Balance [Line Items] Ceded Credit Risk, Collateralization [Domain] Ceded Credit Risk, Collateralization [Domain] Entity Tax Identification Number Entity Tax Identification Number Increases for prior year tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Balance as of beginning-of-year Balance as of end-of-year Deferred Policy Acquisition Cost Sale Leaseback Transaction, Description [Axis] Sale Leaseback Transaction, Description [Axis] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Commissions and other expenses Total Other Cost and Expense, Operating Thereafter Finance Lease, Liability, to be Paid, after Year Five Equity Components [Axis] Equity Components [Axis] Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans Changes In The Fair Value Of Reinsurance-Related Embedded Derivatives, Trading Securities And Certain Mortgage Loans Changes In The Fair Value Of Reinsurance-Related Embedded Derivatives, Trading Securities And Certain Mortgage Loans Total future minimum lease payments Finance Lease, Liability, to be Paid Loans with fair value option in non-accrual Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status Less: ceded MRB assets (liabilities) Ceded Market Risk Benefit Assets (Liabilities) Ceded Market Risk Benefit Assets (Liabilities) Calculation of reserves using the Indiana universal life method Calculation Of Reserves Using Indiana Universal Life Method [Member] Calculation of reserves using the Indiana universal life method resulting from applying state prescribed statutory accounting practices rather than statutory accounting practices prescribed by the National Association of Insurance Commissioners. Interest from subsidiaries Interest From Subsidiaries This element represents interest income to the entity from consolidated subsidiaries. These amounts were eliminated in consolidation. Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Cash received from disposition, net of cash transferred Cash received from disposition Proceeds from Divestiture of Businesses, Net of Cash Divested 1-50 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 [Member] Outstanding at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Direct insurance premiums and fee income Gross Amount Direct Premiums Earned A Standard & Poor's, A Rating [Member] DAC and VOBA Deferred Tax Liabilities, Deferred Acquisition Costs And Value Of Business Acquired The amount of the estimated future tax effects attributable to the difference between the tax basis of deferred acquisition costs (DAC) and the basis of DAC and value of business acquired (VOBA) and the basis of VOBA computed in accordance with generally accepted accounting principles. The difference in basis, whether due to amortization or other reasons, will increase future taxable income when such difference reverses. Realized Gain (Loss) [Abstract] Realized (Gain) Loss [Abstract] Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Geographical [Axis] Geographical [Axis] Deferred Net deferred tax asset (liability) Deferred Tax Assets, Net Net transfers from (to) separate account Transfer to (from) Policyholder Account Balance (to) from Separate Account Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Hybrids Hybrid Securities [Member] Hybrid Securities U.S. net gain (loss) from operations, after-tax Statutory Accounting Practices Statutory Net Gain From Operations After Tax Amount Amount of net gain from operations, after tax, for the period determined using accounting principles prescribed or permitted by insurance regulators. Consolidation Items [Axis] Consolidation Items [Axis] Derivatives designated as hedging instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Beginning balance at original discount rate Ending balance at original discount rate Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance Products and Services [Domain] Product and Service [Domain] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Goodwill [Roll Forward] Goodwill [Roll Forward] Fair Value Disclosures [Abstract] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Unrealized holding losses arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Schedule of Reconciliation of Separate Account Liabilities Schedule Of Reconciliation Of Separate Account Liabilities [Table Text Block] Schedule Of Reconciliation Of Separate Account Liabilities Fixed maturity AFS securities Fixed Maturities [Member] Balance as of beginning-of-year Balance as of end-of-year Deferred Sale Inducement Cost Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Tax-preferred investment income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Greater Than 150 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater [Member] Investments [Table] Investments [Table] Investments [Table] Gross Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract] Debt Securities, Available-for-Sale Debt Securities, Available-for-Sale [Table Text Block] Fair Value Assets and Liabilities Measured on Recurring Basis Level 3 Activity [Table] Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Table] Disclosure of certain activity of fair value measurements classified within Level 3, including a reconciliation of changes in the fair value from beginning of period to end of period, disclosure of the changes in unrealized gains and losses included in net income during the period for financial instruments carried at fair value and still held as of the balance sheet date, and transfers in and out of Level 3 during the period. Preferred stock, fraction of interest Preferred Stock, Shares Issued, Fraction Of Interest Preferred Stock, Shares Issued, Fraction Of Interest Common stock, issued (in shares) Common Stock, Shares, Issued Deferred front-end loads Balance as of beginning-of-year Balance as of beginning-of-year Deferred Front End Loads The unamortized carrying amount of deferred front end loads as of the balance sheet date. Other assets Other Assets [Member] Issuances Market Risk Benefit, Issuance, Net Market Risk Benefit, Issuance, Net Line of credit facility, maximum borrowing capacity Maximum Available Line of Credit Facility, Maximum Borrowing Capacity Lapse Measurement Input, Lapse Rate [Member] SOFR + 236 bps, due 2066 Due2066 Two Of Two [Member] This element represents SOFR +236 bps capital securities due 2066. Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Loans to and accrued interest due from subsidiaries Accounts Receivable, after Allowance for Credit Loss Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Schedule of Fair Value of Separate Account Assets Fair Value, Separate Account Investment [Table Text Block] Other Investments Real Estate Held for Development and Sale, Policy [Policy Text Block] Impairment of intangibles Goodwill and Intangible Asset Impairment Individual life insurance in-force SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net [Abstract] Non-operating indebtedness of subsidiaries to total capitalization, maximum Non-Operating Indebtedness Of Subsidiaries To Total Capitalization, Maximum Non-Operating Indebtedness Of Subsidiaries To Total Capitalization, Maximum Issuance of mortgage loans on real estate Issuance Of Mortgage Loans On Real Estate The cash outflow associated with the issuance of mortgage loans on real estate. Fair Value Assets And Liabilities Measured On Recurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring Basis [Table] Summarization of information required and determined to be disclosed concerning assets and liabilities, including [financial] instruments that are classified in stockholders' equity, which are measured at fair value on a recurring basis. Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Investments pledged for FHLBI Securities Pledged For Federal Home Loan Bank Of Indianapolis Carrying Value The amount of cash received as security in return for loaning securities to Federal Home Loan Bank of Indianapolis. Premiums Written SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written Foreign currency translation adjustment arising during the year Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Range of guaranteed minimum crediting rate Policyholder Account Balance, Guaranteed Minimum Credit Rating Percentage of the fair value of domestic securities obtained as collateral under securities lending agreements. Collateral Obtained Percent Of Fair Value Securities Lending Agreements Domestic This item represents the percentage of the fair value of domestic securities obtained as collateral under securities lending agreements Traditional Life Traditional Life [Member] Traditional Life [Member]. Nonperforming Nonperforming Financial Instruments [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Current Current Tax Assets (Liabilities), Net Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes, net of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. Thereafter Long-Term Debt, Maturity, after Year Five Percent of non cumulative preferred stock Percent Of Non Cumulative Preferred Stock Percent of non cumulative preferred stock. Mortgage loans on real estate, gross Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Certain Financing Arrangments Certain Financing Arrangments [Member] Certain Financing Arrangments 9.250% Fixed Rate Reset Non-Cumulative Preferred Stock, Series C Nine Two Five Zero Percent Fixed Rate Reset Non Cumulative Preferred Stock Series C [Member] 9.250% Fixed Rate Reset Non-Cumulative Preferred Stock, Series C. Separate Account, Liability [Roll Forward] Separate Account, Liability [Roll Forward] Indexed annuity ceded embedded derivatives Indexed Annuity Ceded Embedded Derivatives [Member] Indexed Annuity Ceded Embedded Derivatives [Member] Other Operations Other Operations [Member] Other Operations includes investments related to the excess capital in our insurance subsidiaries; investments in media properties and other corporate investments; benefit plan net liability; the unamortized deferred gain on indemnity reinsurance; the results of certain disability income business due to the rescission of a reinsurance agreement; the Institutional Pension business; and debt costs. Equity in income (loss) of subsidiaries Equity In Income (Loss) Of Subsidiaries, Less Dividends Equity In Income Loss Of Subsidiaries, Less Dividends Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Interest Credited Interest Credited [Policy Text Block] Describes an entity's accounting policy for interest credited. Document Annual Report Document Annual Report Less than six months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Less Than Six Months, Accumulated Loss Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than six months. Protective Protective [Member] Protective [Member] Investment gains (losses), pre-tax Investment Gains (Losses), Before Tax Investment Gains (Losses) Reconciling Item Investments dedicated to fund liabilities Deferred Compensation Plan Assets Payment related to sale-leaseback transactions Payments Of Sale Leaseback Transactions Payments of sale leaseback transactions, primarily related to principal payments. Change in foreign currency exchange rate adjustment AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Foreign Currency Exchange Rate [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Foreign Currency Exchange Rate Mutual funds and collective investment trusts Separate Account Mutual Funds [Member] Separate Account Mutual Funds [Member]. Contingencies and Commitments Commitments and Contingencies, Policy [Policy Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Less: Amount representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount LOCs Issued Letters Of Credit Issued Amount of letters of credit issued under credit facilities as of the balance-sheet date. Vesting [Axis] Vesting [Axis] Deposit assets, net of allowance for credit losses Deposit Assets Stock compensation/issued for benefit plans (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Income tax benefit (expense) Income tax benefit (expense) Other Comprehensive Income (Loss) before Reclassifications, Tax Alternative investments as a percentage of overall invested assets Alternative Investments As A Percentage Of Overall Invested Assets Alternative investments as a percentage of overall invested assets. Revision of Prior Period [Axis] Revision of Prior Period [Axis] Useful life of intangible assets Finite-Lived Intangible Asset, Useful Life Senior notes Senior Notes, Noncurrent Hedging Relationship [Axis] Hedging Relationship [Axis] Payables for collateral on investments Total payables for collateral on investments Deposits Received for Securities Loaned, at Carrying Value Deferred acquisition costs, value of business acquired and deferred sales inducements Deferred Policy Acquisition Costs, Value Of Business Acquired, And Deferred Sales Inducements Deferred Policy Acquisition Costs, Value Of Business Acquired, And Deferred Sales Inducements Class of Stock [Line Items] Class of Stock [Line Items] Trading securities Trading Assets, Excluding Debt and Equity Securities [Member] Class of Stock [Axis] Class of Stock [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] 2028 Finance Lease, Liability, to be Paid, Year Four Policyholder account balances Policyholder Account Balances [Member] Policyholder account balances Consumer Non-Cyclical Industry Consumer Non-Cyclical Industry [Member] Consumer Non-Cyclical Industry Additions from purchases of PCD debt securities Debt Securities, Available-for-Sale, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Number of operating segments Number of Operating Segments Swiss Re Swiss Re [Member] Represent the largest reinsurance exposure as our reinusrance operations were acquired by Swiss Re in December 2001, through a series of indemnity reinsurance transactions. Fair Value of Assets and Liabilities on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Weighted-average duration of future policyholder benefit liability Liability for Future Policy Benefit, Weighted-Average Duration Sale Leaseback Transaction [Line Items] Sale Leaseback Transaction [Line Items] Policy loans Loans, Gross, Insurance Policy Granted in 2021 Share-Based Payment Arrangement, Tranche Two [Member] Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Other Operations Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Equity securities Equity Securities, FV-NI Series C Preferred Stock Series C Preferred Stock [Member] Broker-dealer expenses Broker Dealer Expenses Commissions, general and administrative, and taxes, licenses and fees expense related to broker dealers. Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Preferred stock, dividend rate Preferred Stock, Dividend Rate, Percentage Stock options with performance conditions Stock Options With Performance Conditions [Member] A contract that gives the holder the right, but not the obligation, either to purchase or to sell a certain number of shares of stock at a predetermined price for a specified period of time. Contingent on performance conditions. Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Total income (loss) from operations Operating Income (Loss) Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Reinsurance ceded Ceded to Other Companies Ceded Premiums Earned Trading Securities Marketable Securities, Policy [Policy Text Block] Investments pledged for FHLBI Increase Decrease In Cash Collateral For Securities Pledged For FHLBI The net change during the reporting period in the amount of cash that is received related to securities pledged for Federal Home Loan Bank of Indianapolis. Mark-to-market gains (losses) Fair Value, Option, Aggregate Differences, Loans and Long-Term Receivables Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Participating policies as a percentage of the face amount of the insurance in force Participating Insurance, Percentage of Gross Insurance in Force Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] ROU assets obtained in exchange for new lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Underlying Security Market Price Change Underlying Security Market Price Change, Percent Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Fixed maturity AFS and trading securities, measurement input Debt Securities, Available-for-Sale, Measurement Input Expected life (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Product and Service [Axis] Product and Service [Axis] Statement [Line Items] Statement [Line Items] Payables for Collateral on Investments Payables For Collateral On Investments [Policy Text Block] This element describes an entity's accounting policy to record consideration received as collateral in a collateralized financing transaction as well as income and expenses associated with these transactions. Disclosure of Variable Interest Entities Assets and Liabilities [Line Items] Disclosure Of Variable Interest Entities Assets And Liabilities [Line Items] Disclosure Of Variable Interest Entities Assets And Liabilities [Line Items] Reinsurance ceded Reinsurance Ceded Of Market Risk Benefit Gain Loss Reinsurance Ceded Of Market Risk Benefit Gain Loss. Derivative Instruments Derivatives, Policy [Policy Text Block] Loss contingency, estimate Loss Contingency, Estimate of Possible Loss Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] Fixed interest rate Derivative, Fixed Interest Rate Minimum Minimum [Member] Exchange-traded funds Separate Account, Equity Security [Member] Adoption Date Trading Arrangement Adoption Date Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for mortgage loan Collateral Obtained Percent Of Fair Value Of Mortgage Loan This item represents the percentage of the fair value of Mortgage loans obtained as collateral pledged. Amortization DAC amortization Deferred Policy Acquisition Costs, Amortization Expense Due after five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] 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] Federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Mortgage loans on real estate Mortgage Loans On Real Estate [Member] Mortgage Loans On Real Estate [Member] Exercise Price Award Exercise Price Interest – other Interest Expense, Other Significant components of deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Debt repurchase option Debt Repurchase Option, Repayment As Percent Of Principal Debt Repurchase Option, Repayment As Percent Of Principal Arrangement Duration Trading Arrangement Duration Operating loss carryforwards Operating Loss Carryforwards Goodwill and Specifically Identifiable Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Realized gain (loss) Realized (gain) loss Realized gain (loss) Total realized gain (loss) Debt and Equity Securities, Realized Gain (Loss) Less Than or Equal to Twelve Months Nine months or greater, but less than twelve months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Reinsurance ceded Policyholder Benefits and Claims Incurred, Assumed and Ceded Income Tax Disclosure [Abstract] Other investments Other Investments Investment commitments for limited partnerships Investment Commitments Limited Partnerships This item represents investment commitments as of the balance sheet date for limited partnerships. Mortgage loans on real estate, net of allowance for credit losses Total carrying value Mortgage loans on real estate Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Statement of Stockholders' Equity [Abstract] Change in fair value of embedded derivative instrument and other Policyholder Account Balance, Increase (Decrease) from Other Change Mortgage Loans on Real Estate Mortgage Banking Activity [Policy Text Block] Dividends per share (in dollars per share) Preferred Stock, Dividends Per Share, Declared Resolution Life Resolution Life [Member] Resolution Life [Member] Loans with fair value option, 90 days past due and still accruing Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due Lender Name [Axis] Lender Name [Axis] Assets Assets, Fair Value Disclosure [Abstract] U.S. cash dividends to LNC holding company Dividends To Parent Company This element represents dividends paid to the common parent company by its domestic life insurance subsidiaries. Future contract benefits Future Contract Benefits [Member] Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included. Risk-free interest rate, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Policyholder Account Balance [Roll Forward] Policyholder Account Balance [Roll Forward] Interest and Debt Expense Interest Expense [Member] Total number of fixed maturity AFS securities in an unrealized loss position Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Funded status of employee benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Deferred Deferred Federal Income Tax Expense (Benefit) Cash and Invested Cash Cash and Cash Equivalents, Policy [Policy Text Block] 2.01% - 3.00% Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From2.01 To3.00 [Member] Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From 2.01 To 3.00 [Member] Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Stock compensation/issued for benefit plans Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Benefits and Interest Credited SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses Up to 30 Days Maturity Less than 30 Days [Member] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Other Policyholder Account Balance Guaranteed Minimum Crediting Rate Range Other [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range Other [Member]. Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Lincoln Reinsurance Company of Vermont VI Lincoln Reinsurance Company of Vermont VI [Member] Lincoln Reinsurance Company of Vermont VI Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Facility agreement term Facility Agreement, Term Facility Agreement, Term Other investments Other Investments [Member] Limited Partnerships and Limited Liability Companies Limited Partnerships And Limited Liability Companies [Member] Limited Partner (Party to a partnership business who has limited liability) and Limited Liabilitied Companies (Legal form of business company offering limited liability to its owners--denoted by L.L.C. or LLC in the U.S.) Outstanding derivative instruments with off-balance-sheet risks Derivative, Fair Value, Net [Abstract] Undiscounted Liability For Future Policy Benefit, Undiscounted, Befiore Reinsurance [Abstract] Liability For Future Policy Benefit, Undiscounted, Befiore Reinsurance Equity Component [Domain] Equity Component [Domain] Reinsurance recoverable for paid and unpaid claims and claims adjustments Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Fair Value of Trading Securities Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Discounted Liability For Future Policy Benefit, Discounted, Befiore Reinsurance [Abstract] Liability For Future Policy Benefit, Discounted, Befiore Reinsurance Entity Shell Company Entity Shell Company Interest and debt expense Interest and debt expense Interest Expense, Debt Counterparty Name [Axis] Counterparty Name [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Impairment of intangibles Impairment Of Intangibles Impairment Of Intangibles Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Net amount at risk Market Risk Benefit, Net Amount at Risk Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Other assets – ceded MRBs Market Risk Benefit, Asset [Member] Market Risk Benefit, Asset Statement of Cash Flows [Abstract] Senior notes Senior Notes [Member] Credit loss benefit (expense) Debt Securities, Available-For-Sale, Credit Loss Expense (Reversal), Not Previously Recorded Debt Securities, Available-For-Sale, Credit Loss Expense (Reversal), Not Previously Recorded Revision of Prior Period [Domain] Revision of Prior Period [Domain] Accrued expenses Increase (Decrease) in Accrued Liabilities Income Tax Expense (Benefit), Continuing Operations [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] U.S. net income (loss) Statutory Accounting Practices, Statutory Net Income Amount Weighted-average fair value per option granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Less than six months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Less Than Six Months, Number Of Positions Number of investment positions in available-for-sale investments in a continuous unrealized loss position for more than six months but less than nine, for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Retirement of common stock/cancellation of shares Stock Repurchased and Retired During Period, Value 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four Mutual fund contract rights Contractual Rights [Member] Net Investment Income [Line Items] Net Investment Income [Line Items] Short-Term and Long-Term Debt Debt, Policy [Policy Text Block] Weighted average discount rate, operating lease Operating Lease, Weighted Average Discount Rate, Percent Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities 4.01% and above Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From4.01 And Greater [Member] Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From 4.01 And Greater [Member] Goodwill impairment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount DAC Deferred Policy Acquisition Costs [Table Text Block] Fair value of securities received as collateral that have been resold or repledged Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Overnight and Continuous Maturity Overnight and on Demand [Member] Fair Value as of Grant Date Award Grant Date Fair Value Fair value of collateral received that we are permitted to sell or re-pledge Fair Value of Securities Received as Collateral that Can be Resold or Repledged Net amount Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction Issuance of preferred stock Stock Issued During Period, Value, New Issues Principles of Consolidation Consolidation, Policy [Policy Text Block] Amortized cost of portfolio rated below investment grade Amortized Cost Of Portfolio Rated Below Investment Grade Amortized cost of portfolio rated below investment grade. Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Change in market performance Separate Account, Liability, Increase (Decrease) from Invested Performance Insurance liabilities and reinsurance-related balances Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Investments pledged for Federal Home Loan Bank of Indianapolis('FHLBI') Securities Pledged For Federal Home Loan Bank Of Indianapolis Fair Value The fair value of investments loaned to Federal Home Loan Bank of Indianapolis as of the balance sheet date. Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Gross Amount SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross Schedule of Common Stock Outstanding Roll Forward Schedule of Common Stock Outstanding Roll Forward [Table Text Block] Long-Term Debt, Fiscal Year Maturity [Abstract] Long-Term Debt, Fiscal Year Maturity [Abstract] LTV Less Than 65% Loan To Value Ratio Less Than Sixty Five [Member] Loan-to-value ratio less than 65%. The loan-to-value ratio compares the principal amount of the loan to the fair value at origination of the underlying property collateralizing the loan and is commonly expressed as a percentage. Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments Cash and invested cash Cash and Cash Equivalents [Member] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Nature of Operation, Product Information, Concentration of Risk [Table] Nature of Operation, Product Information, Concentration of Risk [Table] Net operating losses Deferred Tax Assets, Operating Loss Carryforwards, Domestic Embedded Derivative Instruments Embedded Derivative Financial Instruments [Member] Realized gain (loss) on the market-to-market on certain instruments Realized Gain (Loss) On Mark To Market On Certain Instruments Represents changes in the fair values of certain derivative instruments (including those associated with consolidated variable interest entities), total return swaps (embedded derivatives that are theoretically included in various assets and liabilities associated with these arrangements) and trading securities. SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] Schedule of Assets in Support of Reserves Schedule Of Reinsurance Recorded On Statement Of Financial Condition [Table Text Block] Schedule of Reinsurance Recorded on Statement of Financial Condition [Table Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Industrial, miscellaneous and all other Industrial, Miscellaneous, and All Others [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Net unrealized loss on fixed maturity AFS securities Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss Credit Derivatives [Line Items] Credit Derivatives [Line Items] Policyholder account balances Balance as of beginning-of-year Balance as of end-of-year Policyholder Account Balance Interest accretion rate Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate Dividends paid to preferred stockholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Year five Debt-Service Coverage Ratio, Year Five, Originated, Four Years Before Current Fiscal Year Debt-Service Coverage Ratio, Year Five, Originated, Four Years Before Current Fiscal Year Entity Address, City or Town Entity Address, City or Town Issuance of long-term debt, net of issuance costs Proceeds from Issuance of Long-Term Debt Annuities and life insurance Life and Annuity Insurance Product Line [Member] Gross amounts offset Gross amounts offset Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Investments, Debt and Equity Securities [Abstract] Unrecognized tax benefits, income tax penalties and interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Equity securities, measurement input Equity Securities, FV-NI, Measurement Input Repayment and maturities of mortgage loans on real estate Repayment And Maturities Of Mortgage Loans On Real Estate The investing cash inflow associated with the repayment and/or maturities of mortgage loans on real estate. Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Audit Information [Abstract] Audit Information Reconciliation of DAC, VOBA and DSI Reconciliation Of DAC, VOBA And DSI [Table Text Block] Reconciliation Of DAC, VOBA And DSI Amortized Cost of Mortgage Loans on Real Estate on Nonaccrual Status Financing Receivable, Nonaccrual [Table Text Block] Unamortized premiums (discounts) Debt Instrument, Unamortized Discount (Premium), Net 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Five Document Period End Date Document Period End Date Embedded derivative liability Embedded Derivative, Fair Value of Embedded Derivative Liability Pre-capitalized securities, sold by trust Pre-Capitalized Securities, Sold By Trust Pre-Capitalized Securities, Sold By Trust Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Insider Trading Arrangements [Line Items] Derivative instruments and equity indexed reserves Derivative Instruments And Equity Indexed Reserves [Member] Derivative instruments and equity indexed reserves [Member] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] Document Transition Report Document Transition Report Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Investment commitments Investment Commitments This item represents total investment commitments as of the balance sheet date for fixed maturity available-for-sale securities, limited partnerships, real estate and mortgage loans on real estate. Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Embedded derivative asset Embedded Derivative, Fair Value of Embedded Derivative Asset Commercial mortgage loan prepayment and bond makewhole premiums Commercial Mortgage Loan Prepayment And Bond Make Whole Premiums [Member] Investment income that occurs when borrowers elect to call or prepay their debt prior to the stated maturity. These premiums are designed to make investors indifferent to prepayment. Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] MRB-related activity Deferred Tax Liabilities, Market Risk Benefits Deferred Tax Liabilities, Market Risk Benefits Athene Holding Ltd. Athene Holding Limited [Member] Athene Holding Ltd. [Member] Debt to capital ratio (high end of range) Ratio Of Indebtedness To Net Capital High End Total Aggregate Indebtedness divided by Net Capital, high end of range. Percent of mortality risk reinsured on newly issued non-term life insurance contracts Percent Of Mortality Risk Reinsured On Newly Issued Non Term Life Insurance Contracts Disclosure of the percentage of mortality risk that is reinsured on newly issued non-term life insurance contracts. SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table] SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table] Release of uncertain tax positions Effective Income Tax Rate Reconciliation, Release Of Unrecognized Tax Positions, Amount Effective Income Tax Rate Reconciliation, Release Of Unrecognized Tax Positions, Amount Benefits Benefits [Policy Text Block] Describes an entity's accounting policy for benefits, including recognition and measurement of benefits. Aggregate contractual principal Fair Value Option, Aggregate Contractual Principal Fair Value Option, Aggregate Contractual Principal Other investments Separate Account Other [Member] Separate Account Other [Member]. Purchases of available-for-sale securities and equity securities Payments to Acquire Investments Change in future contract benefits and policyholder account balances, net of reinsurance AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Future Contract Benefits And Policyholder Account Balances [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Future Contract Benefits And Policyholder Account Balances Capital securities Capital Securities Capital Securities Options vested, fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Income Statement and Other Comprehensive Income Location [Domain] Statement of Income Location, Balance [Domain] Company Selected Measure Name Company Selected Measure Name Total credit loss benefit (expense) Debt Securities, Available-for-Sale, Allowance for Credit Loss, Not Previously Recorded Debt-to-Value [Axis] Debt-to-Value [Axis] Vested or expected to vest at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Policyholder account balances and other liabilities Policyholder Account Balances And Other Liabilities [Member] Policyholder Account Balances And Other Liabilities Payment of long-term debt, including current maturities Repayments of debt Repayments of Long-Term Debt Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] DSI amortization Amortization Deferred Sales Inducements Net Amortization Expense Other Amortization Net Of Interest The amount of other amortization of deferred sales inducement costs, net of interest, during the period. Federal income tax expense (benefit) at federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Preferred stock, liquidation preference (in shares) Preferred Stock, Liquidation Preference, Share Preferred Stock, Liquidation Preference, shares. Cover [Abstract] Fair value hedges Fair Value Hedging [Member] Recognized tax benefit Share-Based Payment Arrangement, Expense, Tax Benefit Cash Dividends Declared Per Common Share (in dollars per share) Common Stock, Dividends, Per Share, Declared 2028 Present Value of Future Insurance Profits, Expected Amortization, Year Four Amortized cost of the hedged assets Fair Value Hedge Assets Effects on Statutory Surplus Compared to NAIC Statutory Surplus Effects On Statutory Surplus Compared To NAIC Statutory Surplus [Table Text Block] Disclosure of difference from applying state prescribed or permitted statutory accounting practices rather than statutory accounting practices prescribed by National Association of Insurance Commissioners, by type of permitted or prescribed practice. Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Hedging Relationship [Domain] Hedging Relationship [Domain] Award Timing Disclosures [Line Items] Balance as of beginning-of-year Balance as of end-of-period Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change Delaware Trust Facility Delaware Trust Facility [Member] Delaware Trust Facility [Member] Segment Reporting Segment Reporting, Policy [Policy Text Block] Tax credits Deferred Tax Assets, Tax Credit Carryforwards Financing Receivable, Nonaccrual [Table] Financing Receivable, Nonaccrual [Table] Percentage of the fair value of securities obtained as collateral under reverse repurchase agreements Collateral Obtained Percent Of Fair Value Reverse Repurchase Agreements This item represents the percentage of the fair value of securities obtained as collateral under reverse repurchase agreements Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table] Credit loss-related adjustments, pre-tax Credit Loss-Related Adjustments, Before Tax Credit Loss-Related Adjustments, Before Tax Cash Flows from Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Effect of cumulative changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax Secured Debt Secured Debt [Member] Benefits and policyholder liability remeasurement (gain) loss Policyholder Benefits And Claims Incurred, Net And Liability For Future Policy Benefit, Remeasurement Gain (Loss) Policyholder Benefits And Claims Incurred, Net And Liability For Future Policy Benefit, Remeasurement Gain (Loss) Commonwealth Commonwealth [Member] Commonwealth Award Timing Method Award Timing Method [Text Block] Number of partnerships in alternative investment portfolio Number Of Partnerships In Alternative Investment Portfolio Number of partnerships represented in alternative investment portfolio. Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Investment commitments for private placements Investment Commitments Limited Private Placements This item represents investment commitments as of the balance sheet date for private placements. State insurance department, statutory to NAIC, amount of reconciling item State Insurance Department, Statutory to NAIC, Amount of Reconciling Item Insider Trading Policies and Procedures [Line Items] Revision of Prior Period, Adjustment Revision of Prior Period, Adjustment [Member] State and municipal bonds US States and Political Subdivisions Debt Securities [Member] Accounting Estimates and Assumptions Use of Estimates, Policy [Policy Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Liquidity/Duration Adjustment Measurement Input Liquidity Duration Adjustment [Member] Measurement Input, Liquidity/Duration Adjustment [Member] Compensation Amount Outstanding Recovery Compensation Amount Variable Rate Component One Variable Rate Component One [Member] Variable Rate Component One Disposal Group Classification [Axis] Disposal Group Classification [Axis] Effect of: Income Tax Reconciliation Reconciling Items [Abstract] Income Tax Reconciliation Reconciling Items [Abstract] Entity Small Business Entity Small Business Schedule of Securities Pledged by Contractual Maturity Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Excess tax expense (benefit) from stock-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Expenses associated with reserve financing and LOCs Reserve Financing Expenses Expenses associated with reserve financing supporting secondary guarantee UL and term business, and expenses for unrelated letters of credit. Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] Granted prior to 2021 Share-Based Payment Arrangement, Tranche One [Member] Senior Notes 2.330%, Due 2030 Senior Notes 2.330 Due 2030 [Member] Senior Notes 2.330%, Due 2030 [Member] Reserves associated with modified coinsurance reinsurance arrangements Total Reserves Associated With Modified Coinsurance The amount of investments in support of reserves associated with modified coinsurance reinsurance arrangements for portions of the Company's deferred annuity business. Insurance premiums Premiums Earned, Excluding Insurance Commissions And Fees, Net Premiums Earned, Excluding Insurance Commissions And Fees, Net 6.30% notes, due 2037 Notes Due 2037 [Member] Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. This element represents 6.30% fixed rate senior notes due 2037. Residential Residential Portfolio Segment [Member] Preferred stock, redemption price (in dollars per share) Preferred Stock, Redemption Price Per Share Stock options Share-Based Payment Arrangement, Option [Member] Debt Securities, Available-for-Sale [Table] Debt Securities, Available-for-Sale [Table] 2025 Lessee, Operating Lease, Liability, to be Paid, Year One Percentage of fair value rated as investment grade Available For Sale Securities Fair Value Disclosure Percent Investment Grade Percentage of the fair value of portfolio that was rated investment grade as of balance sheet date. Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent VODA Distribution Rights [Member] Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Award Type [Axis] Award Type [Axis] Issuances Liability for Future Policy Benefit, Expected Net Premium, Issuance Investments Invested Assets [Member] Invested Assets [Member] Ceded Credit Risk [Line Items] Ceded Credit Risk [Line Items] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Total liabilities Liabilities Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Proceeds from dividends received Proceeds from Dividends Received Other Assets and Other Liabilities Other Assets And Other Liabilities [Policy Text Block] This element describes an entity's accounting policy for other assets and liabilities. Cash Flows from Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Six months or greater, but less than nine months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Six To Nine Months This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for more than six months, but less than nine. Unamortized premium (discount) Financing Receivable, Unamortized Purchase Premium (Discount) DAC, VOBA, DSI and DFEL DAC, VOBA, DSI And DFEL [Text Block] This element may be used to encapsulate the entire disclosure, including data and tables, pertaining to the nature and amount of capitalized costs incurred to write or acquire insurance contracts or the purchase of a life insurance company, amounts such as interest credited and bonuses given to motivate purchases of insurance products, and front-end charges that are deferred and amortized into income over the life of insurance contracts. Liquidation preference, value Preferred Stock, Liquidation Preference, Value Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Transfers Into or Out of Level 3, Net Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net Reinsurance Agreement Reinsurance Agreement [Member] Reinsurance Agreement [Member]. Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Direct market risk benefit (gain) loss Direct Market Risk Benefit (Gain) Loss Direct market risk benefit (gain) loss. Market Risk Benefit Non-Performance Risk Gain (Loss) AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Parent [Member] Interest - subsidiaries Interest To Subsidiaries This element represents interest expense from the entity to consolidated subsidiaries. These amounts were eliminated in consolidation. Reinsurance-related embedded derivatives Reinsurance Related Embedded Derivatives [Member] Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included. Debt Instrument [Line Items] Debt Instrument [Line Items] Weighted-Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Goodwill Goodwill and Intangible Assets, Policy [Policy Text Block] Net reduction of fixed maturity AFS securities and accrued investment income in connection with a reinsurance transaction Transfer Of Fixed Maturity Securities Transfer Of Fixed Maturity Securities Weighted-average shares, as used in diluted calculation (in shares) Weighted Average Number of Shares Outstanding, Diluted Statutory Accounting Practice, Jurisdiction [Axis] Statutory Accounting Practice, Jurisdiction [Axis] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total stockholders’ equity Balance as of beginning-of-year Balance as of end-of-year Equity, Attributable to Parent Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One 3.35% notes, due 2025 Notes Due 2025 [Member] Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. This element represents 3.35% fixed rate senior notes due 2025. Reinsurance ceded Reinsurance Ceded of Direct Policyholder Liability Remeasurement Benefit (Gain) Loss Reinsurance ceded of direct policyholder liability remeasurement benefit (gain) loss. Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Schedule of Goodwill Schedule of Goodwill [Table Text Block] Letter of credit Letters of Credit Outstanding, Amount MRBs Market Risk Benefit [Text Block] Market Risk Benefit Defined contribution plans expense Defined Contribution Plan, Cost Sales and maturities (purchases) of trading securities, net Proceeds from (Payments for) Trading Securities, Short-Term Sales force Sales Force [Member] An intangible asset acquired in a business combination attributable to the value of the new business distribution system for certain life insurance products. Gross deposits Separate Account, Liability, Deposit Effect of cumulative changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax Policyholder Account Balance [Table] Policyholder Account Balance [Table] 2028 Long-Term Debt, Maturity, Year Four Incremental common shares from assumed exercise or issuance of stock-based incentive compensation awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Wealth Management Business Wealth Management Business [Member] Wealth Management Business Unrealized Gain (Loss) on Fixed Maturity AFS Securities and Certain AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Two Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Outstanding at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Traditional contract acquisition cost amortization period Traditional Contract Acquisition Cost Amortization Period The amortization period range for acquisition costs associated with all traditional contracts, including traditional life insurance contracts Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Change in foreign currency exchange rate adjustment Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Change In Foreign Currency Exchange Rate [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Change In Foreign Currency Exchange Rate Line of credit facility, commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Schedule of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Adjusted balance as of beginning-of-year Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change Exercisable at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Derivative Counterparties Derivative Counterparties [Member] Derivative Counterparties DFEL amortization Amortization Deferred Front End Loads Amortization Expense Other Amortization Net Of Interest The amount of other amortization of deferred front end loads, net of interest, during the period. Parent Company Parent Company [Member] Maximum Maximum [Member] Preferred stock Preferred Stock, Value, Outstanding Common stock issued for benefit plans Common Stock Issued For Benefit Plans The cash outflow associated with the amount paid from the deferred compensation plan during the period. This element represents the cash outflow reported in the enterprise's financing activities. Accumulated Impairment as of Beginning- of-Year Goodwill, Impaired, Accumulated Impairment Loss Fair value, concentration of risk, investments Fair Value, Concentration of Risk, Investments Net Investment Income Net Investment Income [Member] Net Investment Income [Member] Reinsurance Reinsurance [Text Block] Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Certain legal accruals, before tax Other Non Operating Adjustments, Certain Legal Accruals, Before Tax Other Non Operating Adjustments, Certain Legal Accruals, Before Tax Accrued investment income Accrued Investment Income Receivable Policy Loans Policy Loans Receivable, Policy [Policy Text Block] LOC facility, due August 2031 Line Of Credit Facility Due August2031 [Member] A contractual arrangement with a lender or group of lenders under which letters of credit may be issued up to a specific amount. Arrangement expires August 2031. Name Outstanding Recovery, Individual Name Variable Rate Component [Domain] Variable Rate Component [Domain] Variable Rate Component [Domain] Impairment Goodwill impairment loss Goodwill, Impairment Loss Number of missed payments to qualify loans as non-accrual Loans No Longer Accrue Interest, Number of payments Loans No Longer Accrue Interest, Number of payments Award Timing Predetermined Award Timing Predetermined [Flag] Income tax benefit (expense) related to the above pre-tax items Income Tax Benefit (Expense), Miscellaneous, Before Tax Income Tax Benefit (Expense), Miscellaneous, Before Tax Maturities Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Maturities Represents decreases to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to maturities of investments during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. Fair Value Decline, Greater Than 20% Fair Value Decline Greater Than Twenty Percent [Member] Fair Value Decline, Greater Than Twenty Percent [Member] Dividends paid to common stockholders Payments of Ordinary Dividends, Common Stock VOCRA Customer Relationships [Member] Diluted (in dollars per share) Earnings Per Share, Diluted Counterparty Name [Domain] Counterparty Name [Domain] Future Contract Benefits Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] Mortgage loans on real estate, net of allowance for credit losses Receivables, Fair Value Disclosure [Abstract] Award vesting rights, percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Retirement Benefits [Abstract] Preferred stock, issued (in shares) Preferred Stock, Shares Issued External Credit Rating, Standard & Poor's [Domain] External Credit Rating, Standard & Poor's [Domain] Reinsurance-Related Notes, September 30 2021 Reinsurance-Related Notes, September 30 2021 [Member] Reinsurance-Related Notes, September 30 2021 Non-cash transactions: Cash Flow, Noncash Financing Activities Disclosure [Abstract] Cash Flow, Noncash Financing Activities Disclosure Federal income tax expense (benefit) Federal income tax expense (benefit) Total federal income tax expense (benefit) Federal income tax expense (benefit) Income Tax Expense (Benefit) Notional Amounts Total Derivative, Notional Amount Derivative investments Carrying Value Derivative Asset Forfeited or expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Ceded deferred front end loads Less: reinsurance recoverables Ceded Deferred Front End Loads Ceded Deferred Front End Loads Weighted-Average Period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Variable Rate Component Two Variable Rate Component Two [Member] Variable Rate Component Two Product Information [Line Items] Product Information [Line Items] Unamortized adjustments from discontinued hedges Unamortized Adjustments From Discontinued Hedges Unamortized Adjustments From Discontinued Hedges Policyholder Account Balance Policyholder Account Balance [Text Block] Policyholder Account Balance Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Separate account assets Separate Account Asset All Adjustments to Compensation All Adjustments to Compensation [Member] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Schedule of Changes in Preferred Schedule Of Changes In Preferred Stock [Table Text Block] Disclosure in tabular form of the changes in the number of shares of the entity's preferred and during the reporting period. Liability for Future Policy Benefit, Activity Liability for Future Policy Benefit, Activity [Table Text Block] 3.40% notes, due 2032 Notes Due 2032 [Member] Notes Due 2032 [Member]. Credit contracts Credit Risk Contract [Member] Common stock Common Stock, Value, Outstanding Commodity contracts Commodity Contract [Member] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table] Unrealized Gain (Loss) on Derivative Instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Net Amount SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity Address, State or Province Entity Address, State or Province Federal Income Tax Asset Liability Schedule Of Current And Deferred Tax Assets And Liabilities [Table Text Block] Disclosure of the components of the federal income tax asset or liability recognized in the entity's statement of financial position, including current and deferred tax assets and liabilities. Fair Value Portion at Other than Fair Value Measurement [Member] Financial Instruments [Domain] Financial Instruments [Domain] Vesting [Domain] Vesting [Domain] Outstanding at beginning of year (in dollars per share) Outstanding at end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Sales and repayments of alternative investments Proceeds From Sale And Repayment Of Alternative Investments The investing cash inflow associated with the sale and repayment of alternative investments. Market risk benefit liabilities Liabilities Market risk benefit liabilities Market Risk Benefit, Liability, Amount Derivative investments Derivative [Member] Policyholder assessments Policyholder Account Balance, Policy Charge Net amount of assets Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Net investment income Net Investment Income, Total Net Investment Income Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Other Operating Expense SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense Interest rate contracts Interest Rate Contract [Member] CONDENSED FINANCIAL INFORMATION OF REGISTRANT Condensed Financial Information of Parent Company Only Disclosure [Text Block] Operating lease ROU asset Operating Lease, Right-of-Use Asset Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Reinsurance Disclosures [Abstract] Number of reinsurance agreements Number Of Reinsurance Agreements Number Of Reinsurance Agreements California CALIFORNIA Credit Loss Expense Incurred Schedule Of Available For Sale Debt Securities, Credit Losses Recognized In Earnings [Table Text Block] Schedule Of Available For Sale Debt Securities, Credit Losses Recognized In Earnings [Table Text Block] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Income Taxes Income Tax, Policy [Policy Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Income (loss) before equity in income (loss) of subsidiaries Income Before Equity In Income Of Subsidiaries Less Dividends Sum of operating profit before equity in income of subsidiaries, less dividends. Reporting Segment [Domain] Segments [Domain] Schedule of Financing Lease Maturity Finance Lease, Liability, to be Paid, Maturity [Table Text Block] PEO PEO [Member] Calculation of reserves using continuous CARVM Statutory Accounting Practices Calculation Of Reserves Using Continuous Carvm [Member] Calculation of reserves using the continuous Commissioners Annuity Reserve Valuation Method (CARVM) resulting from applying state prescribed statutory accounting practices rather than statutory accounting practices prescribed by National Association of Insurance Commissioners. Future sales volume and product mix used to forecast Future Sales Volume And Product Mix Used To Forecast Future Sales Volume And Product Mix Used To Forecast Additions from purchases of PCD mortgage loans on real estate Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date Name Trading Arrangement, Individual Name Deferred compensation plans expense Deferred Compensation Arrangement with Individual, Compensation Expense Loans with fair value option in non-accrual, amortized cost Fair Value, Option, Loans Held As Assets, Amortized Cost, Aggregate Amount In Nonaccrual Status Fair Value, Option, Loans Held As Assets, Amortized Cost, Aggregate Amount In Nonaccrual Status Components of the Transfers In and Out of Level 3 Fair Value Assets And Liabilities Transfers In And Out Of Level 3 [Table Text Block] Presentation in tabular form of the components of the transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs). Payment related to certain financing arrangements Payments For Financing Leases And Other, Financing Activities Payments For Financing Leases And Other, Financing Activities Fixed Annuities Fixed Annuity [Member] Additions (reductions) for securities for which credit losses were previously recognized Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal) Exercisable at end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Cumulative fair value hedging adjustment included in the amortized cost of the hedged liabilities Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Fee Income Insurance Fees [Policy Text Block] Describes an insurance entity's accounting policy for insurance fees for investment and interest-sensitive life insurance contracts. These fees consist of asset-based fees, cost of insurance charges, percent of premium charges, contract administration charges and surrender charges that are assessed against contract holder account balances. The accounting policy disclosure includes basis for measurement and the timing of recognition of revenue. Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Market Risk Benefit [Roll Forward] Market Risk Benefit [Roll Forward] Insurance Premiums Revenue Recognition, Premiums Earned, Policy [Policy Text Block] Granted in 2022, 2023, and 2024 Share-Based Payment Arrangement, Tranche Three [Member] Reinsurance ACL and deposit assets Reinsurance Recoverables Allowance And Deposit Assets Amount of allowance for credit loss on reinsurance recoverable and deposit assets. Schedule of Increase (Decrease) in Payables for Collateral on Investments Schedule Of Increase (Decrease) In Payables For Collateral On Investments [Table Text Block] Schedule of increase (decrease) in payables for collateral on investments. Cash surrender value Separate Account, Liability, Cash Surrender Value, Amount Performing Performing Financial Instruments [Member] Six months or greater, but less than nine months Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Six To Nine Months, Number Of Positions Number of investment positions in available-for-sale investments in a continuous unrealized loss position for more than six months but less than nine, for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. Decrease in unrecognized tax benefits is reasonably possible Decrease in Unrecognized Tax Benefits is Reasonably Possible Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Non-performance risk adjustment Derivative Credit Risk Valuation Adjustment, Derivative Liabilities CONSOLIDATED SUMMARY OF INVESTMENTS – OTHER THAN INVESTMENTS IN RELATED PARTIES SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Text Block] Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Valuation allowance Deferred Tax Assets, Valuation Allowance 9.000% Non-Cumulative Preferred Stock Series D Nine Zero Zero Zero Percent Non Cumulative Preferred Stock Series D [Member] 9.000% Non-Cumulative Preferred Stock, Series D. Statutory Information and Restrictions Dividend Payment Restrictions [Text Block] Future contract benefits Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense New York statutory limitation as a percentage of the insurer contract holder surplus New York Statutory Limitation As A Percentage of The Insurer Contract Holder Surplus LLANY, a NY-domiciled insurance company, may not pay out the lesser of this percentage of surplus as of the immediately preceding calendar year or net gain from operations for the immediately preceding calendar year to contract holders, not including realized capital gains, without permission from the New York Insurance Commissioner. Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Additions (reductions) from provision for credit loss expense Credit loss benefit (expense) on mortgage loans on real estate Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Change in: Increase (Decrease) in Operating Capital [Abstract] Unrealized holding gains (losses) arising during the year AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Unrealized Holding Gains (Losses) [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Unrealized Holding Gains (Losses) Fixed maturity available-for-sale securities, at fair value Fair Value Total fixed maturity AFS securities Fixed maturity AFS securities Debt Securities, Available-for-Sale, Excluding Accrued Interest Carrying Value SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Amount Common Stock Common Stock [Member] Net operating cash payments related to closing Fortitude Re reinsurance transaction Increase (Decrease) in Prepaid Reinsurance Premiums Collateral Posted to Counterparty Cash collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset A+ Standard & Poor's, A+ Rating [Member] Withdrawals Policyholder Account Balance, Withdrawal Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Line of Credit Line of Credit [Member] Premiums Premiums Earned, Net [Abstract] Term loan and subordinated notes Medium-Term Note Gross deposits Policyholder Account Balance, Premium Received Segment Reporting [Abstract] Foreign Currency Translation Adjustment Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Ceded Credit Risk, Reinsurer [Domain] Reinsurer, Name [Domain] Effect of changes in future expected policyholder behavior Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected Funds withheld reinsurance liabilities Funds Held under Reinsurance Agreements, Liability Segment Information Segment Reporting Disclosure [Text Block] Net amount Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Measurement Basis [Axis] Measurement Basis [Axis] Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Title Trading Arrangement, Individual Title Balance as of beginning-of-year Balance as of end-of-year Present Value of Future Insurance Profits, Net Consolidated Entities [Axis] Consolidated Entities [Axis] Geographic Concentration Risk Geographic Concentration Risk [Member] Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table] Disposal Group Classification [Domain] Disposal Group Classification [Domain] DAC and VOBA Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change Preferred Stock Preferred Stock [Member] 4.375% notes, due 2050 Notes Due 2050 [Member] Notes Due 2050 [Member] Reductions for mortgage loans on real estate charged off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Repurchase of common stock Payments for Repurchase of Common Stock Fannie Mae Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] Document Information [Line Items] Document Information [Line Items] Changes in DFEL [Roll Forward] Movement In Deferred Front End Loads [Roll Forward] A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. Expenses Benefits, Losses and Expenses [Abstract] Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] 2025 Present Value of Future Insurance Profits, Expected Amortization, Year One Cash flow hedge gain (loss) to be reclassified within 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Supplemental Cash Flow Elements [Abstract] Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] General and administrative expenses Operating and administrative expenses General and Administrative Expense Schedule of Changes in Debt Schedule of Debt [Table Text Block] Foreign government bonds Debt Security, Government, Non-US [Member] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Present value of minimum lease payments Present value of minimum lease payments Operating Lease, Liability Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward] Shares and Stockholders' Equity Schedule Of Stock By Class And Earnings Per Share Reconciliation Disclosure [Text Block] This element is used to capture the complete disclosure pertaining to an entity's stock. Disclosure of the methodology and assumptions used in the reconciliation of earnings per share, which may include the individual income and share amount effects of all securities that affect EPS, the effect that has been given to preferred dividends in arriving at income available to common stockholders in computing basic EPS, securities that could dilute basic EPS in the future that would have been antidilutive. Total liabilities Deferred Compensation Liability, Current and Noncurrent Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract] 2029 Finance Lease, Liability, to be Paid, Year Five AA- Standard & Poor's, AA- Rating [Member] Carrying Amount Reported Value Measurement [Member] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Deferred Policy Acquisition Cost [Table] Deferred Policy Acquisition Cost [Table] Supplemental Disclosures of Cash Flow Data Cash Flow, Supplemental Disclosures [Text Block] Short-Term and Long-Term Debt Debt Disclosure [Text Block] Unrealized investment gain (loss) Other Comprehensive Income (Loss) Unrealized Investment Gains (Losses) Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to unrealized investment gains (losses). Accrued interest receivable excluded from credit losses Financing Receivable, Accrued Interest, before Allowance for Credit Loss Not designated Preferred Stock Non Designated [Member] Preferred Stock, Non Designated [Member]. MRB assets Mrb Assets [Member] MRB Assets [Member] Changes in unrealized gains (losses) included in net income Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract] Other Payments for (Proceeds from) Other Investing Activities 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] Present Value of Future Insurance Profits, Expected Amortization, Next Five Years [Abstract] Present Value of Future Insurance Profits, Expected Amortization, Next Five Years [Abstract] Auditor Name Auditor Name Income tax benefit (expense) Reclassification from AOCI, Current Period, Tax Fair Value Fair Value Of Related Investments Or Collateral [Abstract] Fair Value Of Related Investments Or Collateral [Abstract] Increase in gross AFS securities unrealized losses Available For Sale Securities Change In Gross Unrealized Holding Gain (Loss) This item represents the change in gross unrealized holding gain or loss on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period. 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] Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Financial Assets Derivative Asset [Abstract] Qualifying Hedges Designated as Hedging Instrument [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Proceeds from divestiture of interest in consolidated subsidiaries Proceeds from Divestiture of Interest in Consolidated Subsidiaries 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] Summary of Balances and Changes in Policyholder Account Balances Policyholder Account Balance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] U.S. capital and surplus Statutory Accounting Practices, Statutory Capital and Surplus, Balance Stockholders' equity, threshold, failure to pay, number of days Stockholders' Equity, Threshold, Failure To Pay, Number Of Days Stockholders' Equity, Threshold, Failure To Pay, Number Of Days Foreign government bonds Foreign Government Debt [Member] Termination Date Trading Arrangement Termination Date 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] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Issuances, Sales, Maturities, Settlements, Calls, Net Total Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Maturities), (Settlements), (Calls) Represents the net increase or decrease to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to purchases, sales, issuances, or settlements during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. Net unrealized loss on trading securities Deferred Tax Asset, Debt Securities, Trading, Unrealized Loss 2025 Long-Term Debt, Maturity, Year One Investment commitments for mortgage loans on real estate Investment Commitments Mortgage Loans This item represents investment commitments as of the balance sheet date for mortgage loans. Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Life Insurance Life Segment [Member] The Life segment offers wealth protection and transfer opportunities through term insurance, a linked-benefit product (which is a UL policy linked with riders that provide for long-term care costs) and both single and survivorship versions of UL and VUL, including corporate-owned UL and VUL insurance and bank-owned UL and VUL insurance products. Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Balance as of beginning-of-year, before the effect of changes in non-performance risk Balance as of end-of-year, before the effect of changes in non-performance risk Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change VOBA amortization Amortization Present Value Of Future Insurance Profits Other Amortization Expense The amount of other amortization of the present value of future profits asset during the period. Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Interest accrual Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Consent fees Consent Fees [Member] Investment income from consent fees. Statements of Income [Abstract] Income Statement [Abstract] Changes arising during the year OCI, before Reclassifications, before Tax, Attributable to Parent Collateral payable for derivative investments Increase Decrease In Cash Collateral For Derivative Investments The net change during the reporting period in the amount of cash that is received related to collateral payable held for derivative instruments. Other Long-Duration Insurance, Other [Member] Name Forgone Recovery, Individual Name Exercisable at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Weighted average remaining operating lease term Operating Lease, Weighted Average Remaining Lease Term ASU 2018-12 Transition [Abstract] Other Other Noncash Income (Expense) Credit loss benefit (expense) on reinsurance-related assets Reinsurance Recoverable, Credit Loss Expense (Reversal) Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Other investments Gross Investment Income Including Derivatives, Operating Gross Investment Income Including Derivatives, Operating Sale Leaseback Transaction, Name [Domain] Sale Leaseback Transaction, Name [Domain] Preferred stock, annual rate, prior to reset, period Preferred Stock, Annual Rate, Prior To Reset, Period Preferred Stock, Annual Rate, Prior To Reset, Period Business acquired (sold) through reinsurance Present Value Of Future Insurance Profits, Addition (Disposition) From Acquisition Amount of addition (disposition) for present value of future profits of insurance contract acquired (sold) in business combination. Series D Preferred Stock Series D Preferred Stock [Member] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Amortized cost of the hedged liabilities Fair Value Hedge Liabilities Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Weighted-average shares, as used in basic calculation (in shares) Weighted Average Number of Shares Outstanding, Basic Reconciles of MRBs Assets and Liabilities Reconciles Of MRBs Assets And Liabilities [Table Text Block] Reconciles Of MRBs Assets And Liabilities Long-term debt Total long-term debt Long-Term Debt And Fair Value Hedges Carrying amount of long-term debt, net of unamortized discount or premium, including noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans, commercial paper and the fair value of associated fair value hedges of long-term debt, if any. Excludes capital lease obligations. Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Balance as of end-of-year, net of reinsurance Deferred Front End Loads, Net Deferred Front End Loads, Net Greater Than Twelve Months Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gross Investment Income, Operating, Net Gross Investment Income, Operating, Net Gross Investment Income, Operating, Net Deferred profit liability Liability For Future Policy Benefit, Deferred Profit Liability Liability For Future Policy Benefit, Deferred Profit Liability Components of Deferred Tax Assets and Liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] New York NEW YORK Name Awards Close in Time to MNPI Disclosures, Individual Name All other corporate bonds Other Corporate Bonds [Member] Less Than or Equal to Twelve Months Nine months or greater, but less than twelve months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Credit loss expense (reversal) Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Fee income Fee Income Taxes, licenses and fees Cost, Direct Tax and License 3.01% - 4.00% Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From3.01 To4.00 [Member] Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From 3.01 To 4.00 [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Year six and prior Debt-Service Coverage Ratio, Originated, More Than Five Years Before Current Fiscal Year Debt-Service Coverage Ratio, Originated, More Than Five Years Before Current Fiscal Year Percentage of aggregate net proceeds of equity issuances Percentage Of Aggregate Net Proceeds Of Equity Issuances Percentage of aggregate net proceeds of equity issuances received by the entity that is added to the specified level of net worth in calculating total minimum net worth to be maintained in accordance with the terms of the credit facility. Non-cash collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Debt and Equity Securities, FV-NI [Line Items] Debt and Equity Securities, FV-NI [Line Items] Effect of changes in interest rates Market Risk Benefit, Increase (Decrease) from Interest Rate Change Schedule of Lease Costs Lease, Cost [Table Text Block] Debt to capital ratio (low end of range) Ratio Of Indebtedness To Net Capital Low End Total Aggregate Indebtedness divided by Net Capital, low end of range. Composition of Current and Past Due Mortgage Loans on Real Estate Financing Receivable, Past Due [Table Text Block] Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] All Trading Arrangements All Trading Arrangements [Member] Reconciliation of the Denominator Calculations of Basic and Diluted Earnings per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Tax credit carryforward, amount Tax Credit Carryforward, Amount Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Derivative [Line Items] Derivative [Line Items] Market risk benefit non-performance risk gain (loss) OCI, Market Risk Benefit, Instrument-Specific Credit Risk, Gain (Loss), after Adjustments, Tax Investments in subsidiaries Equity Method Investments Pay vs Performance Disclosure [Line Items] RMBS Residential Mortgage-Backed Securities [Member] Derivative [Table] Derivative [Table] Discontinued Hedges Discontinued Hedges [Member] Discontinued Hedges [Member] Texas TEXAS Net amount of liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral Premium expected to be collected Financial Guarantee Insurance Contracts, Premium Receivable, Premium Expected to be Collected Aggregate Intrinsic Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Aggregate Intrinsic Value Issuance of preferred stock, net of issuance costs Proceeds from Issuance of Preferred Stock and Preference Stock Other Performance Measure, Amount Other Performance Measure, Amount Other realized gain (loss) Other Investments Net Realized Gain Loss Other investments, net realized gain (loss) Common stock, outstanding (in shares) Balance as of beginning-of-year (in shares) Balance as of end-of-year (in shares) Common Stock, Shares, Outstanding Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Severance expense for workforce realignment, before tax Other Non Operating Adjustments, Severance Expense For Workforce Realignment, Before Tax Other Non Operating Adjustments, Severance Expense For Workforce Realignment, Before Tax Carrying Value Carrying Value Of Payables For Collateral On Investments [Abstract] Carrying Value Of Payables For Collateral On Investments [Abstract] Cash flow hedges Cash Flow Hedging [Member] Gross losses Debt Securities, Available-for-Sale, Realized Loss Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Accounting Standards Update and Change in Accounting Principle [Abstract] 3.05% notes, due 2030 Notes Due 2030 [Member] Due 2030 [Member] Other items, pre-tax Other Non Operating Adjustments, Before Tax Other Non Operating Adjustments, Before Tax Deferred units of LNC stock in our deferred compensation plans Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units Statutory Capital and Surplus Statutory Information [Table Text Block] Detail reflecting statutory capital and surplus, net income and the differences between financial reports which are in conformity with generally accepted accounting principles and the statutory financial statements which also use state permitted or prescribed accounting practices. Separate account assets Seperate Account Assets [Member] Seperate Account Assets [Member] Payout Annuities Payout Annuities [Member] Payout Annuities [Member] Alternative investments Alternative Investments [Member] Includes investments in partnerships. Effect of cumulative changes in non-performance risk AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax Investments [Domain] Investments [Domain] 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 Market Risk Benefit [Table] Market Risk Benefit [Table] Maturities of available-for-sale securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale 2029 Lessee, Operating Lease, Liability, to be Paid, Year Five Gain on disposition of business Realized gain (loss) on sale of subsidiaries/businesses Gain (Loss) on Disposition of Business Weighted Average Range Weighted Average [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] Other liabilities Other Liabilities [Member] Loss contingency accrual Loss Contingency Accrual Five-year revolving credit facility Five Year Revolving Credit Facility [Member] A contractual arrangement with a lender or group of lenders under which borrowings may be made or letters of credit may be issued up to a specific amount, and under which borrowings outstanding may be either short-term or long-term. Arrangement expires May 2018. Total Debt Securities, Available-for-Sale, Unrealized Loss Position Cash and invested cash Cash, invested cash and restricted cash as of beginning-of-year Cash, invested cash and restricted cash as of end-of-year Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Equity securities Equity Securities, FV-NI, Current Expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Depositary shares, value Depositary Shares, Value Depositary shares, value. Indefinite-Lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Less: reinsurance recoverables Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Assumed from Other Companies SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Assumed Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Increase (decrease) in loans to subsidiaries, net Increase (Decrease) In Loans To Subsidiaries, Net The net increase (decrease) associated with loans to subsidiaries Over 30 Years Remaining Life Over 30 Years Total notional amounts of derivative financial instruments with maturity dates over 30 years Trust funded to support reinsurance receivable Trust Funded By Reinsurer To Support Reinsurance Receivable Funds held in trust by the reinsurer to support the sale of the Entity's reinsurance business through an indemnity reinsurance agreement. Security Exchange Name Security Exchange Name Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Percentage of Amount Assumed to Net SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Percentage Assumed to Net Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Lease Contractual Term [Domain] Lease Contractual Term [Domain] Fair Value SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Fair Value Commercial Commercial Real Estate Portfolio Segment [Member] Annuities Annuities Segment [Member] The Annuities segment provides tax-deferred investment growth and lifetime income opportunities for its clients by offering individual fixed annuities, including indexed annuities and variable annuities. Reductions for securities charged off Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Changes in Unrealized Gains (Losses) Included in OCI Unrealized Gain (Loss) on Investments [Table Text Block] Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Market risk benefit, measurement input Market Risk Benefit, Measurement Input Goodwill and Intangible Assets Disclosure [Abstract] Income tax benefit (expense) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Insurance Premiums SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue Expected future benefit payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance Concentration risk Concentration Risk, Percentage Sales Force Intangibles Sales Force Intangibles [Member] Sales Force Intangibles [Member] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] DAC and VOBA deferrals, net of amortization DAC And VOBA Deferrals And Interest Net Of Amortization Additions during the period in capitalized costs that are directly related to the successful acquisition of new and renewal insurance contracts and coverages and value of business acquired, including interest, net of the amount of DAC and VOBA that was amortized during the period, generally in proportion to related revenue earned, estimated gross profits, or over the customer relationship or some other period. Fair Value, Concentration of Risk, Disclosure Items [Domain] Fair Value, Concentration of Risk, Disclosure Items [Domain] Common stock, authorized (in shares) Common Stock, Shares Authorized Total Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process Insurance [Abstract] Transfers Into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Calls Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Calls Represents decreases to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to calls of investments during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Intangibles Deferred Tax Assets, Goodwill and Intangible Assets Transaction and integration costs related to mergers, acquisitions and divestitures Merger Related Expenses This item represents merger-related expenses that were the result of actions undertaken by the entity to eliminate duplicate operations and functions as a result of a merger along with costs related to the implementation of a new unified product portfolio and other initiatives. Adjusted balance as of beginning-of-year Adjusted balance as of beginning-of-year Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change Ceded Credit Risk [Table] Ceded Credit Risk [Table] Summary of Supplemental Cash Flow Data Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Entity Voluntary Filers Entity Voluntary Filers Other liabilities – ceded MRBs Market Risk Benefit, Liability [Member] Market Risk Benefit, Liability Fair Value, Separate Account Investment [Table] Fair Value, Separate Account Investment [Table] Net Investment Income SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income Hedging Designation [Domain] Hedging Designation [Domain] Fixed maturity available-for-sale securities, at fair value Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss [Abstract] Short-term debt Total short-term debt Debt, Current Greater Than Twelve Months Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Total Long-Term Debt Separate Account Assets and Liabilities Separate Account Assets And Liabilities [Policy Text Block] Describes the general nature of contracts reported in separate accounts, including the extent and terms of minimum guarantees, basis of presentation for separate account assets and liabilities and related separate account activity, the liability valuation method and assumptions used in valuing each type of policyholder and contract holder account maintained by the entity. Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Net (Assets) Liabilities Balance as of beginning-of-year Balance as of end-of-year Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk Other Revenues Other Revenues And Fees [Policy Text Block] Describes an entity's accounting policy for other revenues and fees. Derivative results Gain (Loss) on Derivative Instruments, Net, Pretax Investment Income [Table] Investment Income [Table] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Investment expense Investment Income, Investment Expense Schedule of Realized Gain (Loss) Schedule of Realized Gain (Loss) [Table Text Block] 2027 Finance Lease, Liability, to be Paid, Year Three Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Securities pledged under securities lending agreements Securities pledged under securities lending agreements Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred MRBs Market Risk Benefits [Member] Market Risk Benefits [Member] Liabilities Liabilities [Abstract] Revenues Revenues [Abstract] Fair Value Assets and Liabilities Measured on Recurring Basis Level 3 Activity [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items] Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items] Realized Gain (Loss) Realized Gain Loss [Policy Text Block] Describes an entity's accounting policy for realized gain (loss) by identifying transactions giving rise to realized gain (loss) and the basis for measurement. Preferred stock, redemption restriction, period Preferred Stock, Redemption Restriction, Period Preferred Stock, Redemption Restriction, Period DAC, VOBA, DSI and DFEL DAC, VOBA, DSI And DFEL [Policy Text Block] Describes an insurance entity's accounting policy for deferred policy acquisition costs and value of business acquired, including the nature and amount of capitalized costs incurred to write or acquire insurance contracts, and the basis for and methodologies applied in capitalizing and amortizing such costs. Describes an entity's accounting policy for sales inducements and deferred front-end loads and the method for amortizing such deferred costs or unearned revenue. Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Direct policyholder liability remeasurement (gain) loss Direct Policyholder Liability Remeasurement Benefit (Gain) Loss Direct policyholder liability remeasurement benefit (gain) loss. Proceeds from certain financing arrangements Proceeds From Financing Leases And Other, Financing Activities Proceeds From Financing Leases And Other, Financing Activities PEO Name PEO Name Dividend expenses Policyholder Dividends, Expense Share-based compensation arrangements by share-based payment award, award type and Plan name [Domain] Award Type [Domain] Performance adjustment (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Adjustment Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Adjustment Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Total Unrecognized Compensation Expense for All Stock-Based Incentive Compensation Plans Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block] Non-PEO NEO Non-PEO NEO [Member] Trading securities Debt Securities, Trading Loans from and accrued interest due to subsidiaries Notes Payable Retirement and Deferred Compensation Plans Retirement Benefits [Text Block] Other items Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Name Measure Name Entity Interactive Data Current Entity Interactive Data Current CONSOLIDATED REINSURANCE SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block] Capital securities Capital Securities [Member] n/a Benefits Total benefits Benefits Policyholder Benefits and Claims Incurred, Net Deferred Tax Assets Components of Deferred Tax Assets [Abstract] Loan-to-value ratio indicating principal is greater than collateral Loan-To-Value Ratio Indicating Principal Is Greater Than Collateral Loan-To-Value Ratio Indicating Principal Is Greater Than Collateral Gross amount of recognized liabilities Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement Credit Derivative [Table] Credit Derivative [Table] Funded Status of Employee Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] 1.01% - 2.00% Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From1.01 To2.00 [Member] Policyholder Account Balance Guaranteed Minimum Crediting Rate Range From 1.01 To 2.00 [Member] Supplemental Cash Flow Information Supplemental Cash Flow Information [Abstract] Net income (loss) available to common stockholders Net Income (Loss) Available to Common Stockholders, Diluted 5.852% notes, due 2034 Notes Due 2034 [Member] Notes Due 2034 3.40% notes, due 2031 Notes Due 2031 [Member] Notes Due 2031 [Member] 3.625% notes, due 2026 Notes Due 2026 [Member] Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. This element represents 3.63% fixed rate senior notes due 2026. Credit Rating, Standard & Poor's [Axis] Credit Rating, Standard & Poor's [Axis] 1 - 5 Years Remaining Life 1 To 5 Years Total notional amounts of derivative financial instruments maturing in 1 - 5 years. LOC facility, due October 2031 Line Of Credit Facility Due October2031 [Member] A contractual arrangement with a lender or group of lenders under which letters of credit may be issued up to a specific amount. Arrangement expires October 2031. Auditor Firm ID Auditor Firm ID Effective tax rate Effective Income Tax Rate Reconciliation, Percent Commissions and Other Expenses [Abstract] n/a Number of reportable segments Number of Reportable Segments Percentage of Amount Assumed to Net SEC Schedule, 12-17, Insurance Companies, Reinsurance, Premium, Percentage Assumed to Net Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Designation [Axis] Hedging Designation [Axis] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] 2026 Finance Lease, Liability, to be Paid, Year Two Reinsurance-Related Notes, September 30 2014 Reinsurance-Related Notes, September 30 2014 [Member] Reinsurance-Related Notes, September 30 2014 Fair value of portfolio rated below investment grade Fair Value Of Portfolio Rated Below Investment Grade Fair value of portfolio rated below investment grade. Securities Investment Securities Investment [Member] Future Principal Payments Schedule of Maturities of Long-Term Debt [Table Text Block] Measurement Input Type [Axis] Measurement Input Type [Axis] Individual: Individual [Axis] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Policyholder liability discount rate remeasurement gain (loss) OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax, Parent Policyholder Liability Discount Rate Remeasurement Gain (Loss) AOCI, Liability for Future Policy Benefit, Parent [Member] Measurement Input Type [Domain] Measurement Input Type [Domain] Assets Sold under Agreements to Repurchase, Maturity Period [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Public utilities Public Utility, Bonds [Member] Weighted-average crediting rate Policyholder Account Balance, Weighted Average Crediting Rate Separate Account Asset Category [Domain] Separate Account Asset Category [Domain] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fixed maturity AFS securities Separate Account, Debt Security [Member] Policyholder assessments Separate Account, Liability, Policy Charge Total increase (decrease) in payables for collateral on investments Increase Decrease In Collateral For Loaned Securities The increase (decrease) during the reporting period in the amount that is received as security when loaning securities. Fair Value Inputs Quantitative Information Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans, pre-tax Changes In The Fair Value Of Reinsurance-Related Embedded Derivatives, Trading Securities And Certain Mortgage Loans, Before Tax Changes In The Fair Value Of Reinsurance-Related Embedded Derivatives, Trading Securities And Certain Mortgage Loans, Before Tax Unamortized debt issuance costs Unamortized Debt Issuance Expense Claims Utilization Factor Measurement Input Claims Utilization Rate [Member] Measurement input using claims rate at which policyholder exercises optional benefit upon eligibility under insurance contract. 3.80% notes, due 2028 Notes Due 2028 [Member] Due 2028 [Member] Up to 1.00% Policyholder Account Balance Guaranteed Minimum Crediting Rate Range Up To1.00 [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range Up to 1.00 [Member]. Separate Account Asset Category [Axis] Separate Account Asset Category [Axis] Segments [Axis] Segments [Axis] Over-Collateralization Ceded Credit Risk, Secured [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract] LTV Greater Than 75% Loan To Value Ratio Greater Than Seventy Five [Member] Loan To Value Ratio Greater Than Seventy Five [Member] Fixed maturity AFS securities other than structured securities Fixed Maturity AFS Securities Other Than Structured Securities [Member] Fixed maturity AFS securities not including the structured securities (ABS, MBS, CLOs) Variable Interest Entity [Table] Variable Interest Entity [Table] Stockholders' equity threshold triggering required facility exercise Stockholders' Equity, Threshold, Triggering Required Facility Exercise Stockholders' Equity, Threshold, Triggering Required Facility Exercise Unrealized gains (losses) included in OCI, net Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Total investments Investments Investments Attributed fees collected Market Risk Benefit, Attributed Fee Collected 101-150 Basis Points Above Policyholder Account Balance Above Guaranteed Minimum Crediting Rate Range From0101 To0150 [Member] Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Range From 0101 To 0150 [Member] Present value of minimum lease payments Finance Lease, Liability 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Four All Individuals All Individuals [Member] Gross Goodwill as of Beginning- of-Year Goodwill, Gross Series D Depositary Shares Series D Depositary Shares [Member] Series D Depositary Shares [Member]. Preferred stock dividends declared Aggregate Dividend Dividends, Preferred Stock, Cash Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Securities pledged under securities lending agreements Securities Pledged Under Securities Lending Agreements Fair Value The fair value of investments loaned to another party under securities lending agreements as of the balance sheet date. Summary of Weighted-Average Interest Rates Summary Of Weighted-Average Interest Rates [Table Text Block] Summary Of Weighted-Average Interest Rates Loss on embedded derivative Embedded Derivative, Loss on Embedded Derivative Excess of loss reinsurance agreements Excess Of Loss Reinsurance Treaties [Member] Excess Of Loss Reinsurance Treaties [Member] Mortgage loans on real estate Mortgages [Member] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Interest accrual Liability for Future Policy Benefit, Expected Net Premium, Interest Income Direct insurance benefits Policyholder Benefits and Claims Incurred, Direct Transfers from (to) separate accounts, net Transfers To And From Separate Accounts, Net Transfers to and from separate accounts, net. Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Summary of Activity for Restricted Stock Units Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Variable Rate Component [Axis] Variable Rate Component [Axis] Variable Rate Component Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Table] Award requisite service period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Transaction and integration costs for acquisitions or divestiture, before tax Other Non Operating Adjustments, Transaction And Integration Costs For Acquisitions Or Divestiture, Before Tax Other Non Operating Adjustments, Transaction And Integration Costs For Acquisitions Or Divestiture, Before Tax Transaction expenses Business Exit Costs Net life insurance product features, pre-tax Net Life Insurance Product Features, Before Tax Net Life Insurance Product Features, Before Tax MRB liabilities Mrb Liabilities [Member] MRB Liabilities [Member] Collateral payable for derivative investments Collateral Payable Held For Derivative Investments Carrying Value When entering into a derivative transaction, the amount of cash received as collateral from a counterparty. Reinsurance recoverables Reinsurance Recoverables, Gross Contingencies and Commitments Commitments and Contingencies Disclosure [Text Block] LLC notes and variable value surplus notes Llc Notes And Variable Value Surplus Notes [Member] LLC Notes And Variable Value Surplus Notes [Member] Schedule of Collateral Amounts With Rights to Reclaim or Obligation to Return Cash Schedule Of Collateral Amounts With Rights To Reclaim Or Obligation To Return Cash [Table Text Block] Schedule of collateral amounts with rights to reclaim or obligation to return cash based on the S&P credit rating of counterparty. Measure: Measure [Axis] Investments: Investments [Abstract] Total intent to sell impairments Debt Securities, Available-for-Sale, Allowance for Credit Loss, Sell before Recovery Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Entity Emerging Growth Company Entity Emerging Growth Company Indefinite-Lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Gross premiums Gross assessments Liability for Future Policy Benefit, Gross Premium Income Liabilities Liabilities Liabilities, Fair Value Disclosure 2029 Long-Term Debt, Maturity, Year Five Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] Deposits of fixed account balances Deposits Of Fixed Account Values, Including Fixed Portion Of Variable Deposits of fixed account values, including the fixed portion of variable. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Debt-to-Value [Domain] Debt-to-Value [Domain] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 30 to 59 days past due Financial Asset, 30 to 59 Days Past Due [Member] Estimated insurance recoveries Estimated Insurance Recoveries Statement [Table] Statement [Table] Accident and health insurance Accident and Health Insurance Product Line [Member] Number of Securities Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Cash surrender value Policyholder Account Balance, Cash Surrender Value Unearned Premiums SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Compensation and benefit plans Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Assets in group fixed annuity contracts held at general account balances Assets In Group Fixed Annuity Contracts Held At General Account Values [Member] Assets in group fixed annuity contracts held at general account values. Deferrals Deferred Sale Inducement Cost, Capitalization 2027 Long-Term Debt, Maturity, Year Three Gains (losses) on other non-financial assets – sale of subsidiaries/businesses, pre-tax Gains (Losses) On Other Non-Financial Assets, Sale Of Subsidiaries Or Businesses, Before Tax Gains (Losses) On Other Non-Financial Assets, Sale Of Subsidiaries Or Businesses, Before Tax Present Value of Expected LFPB Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Operating revenues Operating Revenues Operating Revenues Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Year two Debt-Service Coverage Ratio, Year Two, Originated, Fiscal Year Before Current Fiscal Year Debt-Service Coverage Ratio, Year Two, Originated, Fiscal Year Before Current Fiscal Year Federal Income Taxes Income Tax Disclosure [Text Block] Supplemental Non-Cash Information Supplemental Non-Cash Flow Information [Abstract] Supplemental Non-Cash Flow Information Details Underlying Commissions and Other Expenses Details Underlying Commissions And Other Expenses [Table Text Block] Discloses the underlying components of commissions and other expenses. SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] Organization, Consolidation and Presentation of Financial Statements [Abstract] Indexed product derivative results Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Gains (Losses) in OCI and Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Credit Facility [Axis] Credit Facility [Axis] Entity Registrant Name Entity Registrant Name CMBS Commercial Mortgage-Backed Securities [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reinsurance recoverable for unpaid claims and claims adjustments Reinsurance Recoverable for Unpaid Claims and Claims Adjustments Schedule of Policyholder Account Balances Schedule Of Policyholder Account Balances [Table Text Block] Schedule Of Policyholder Account Balances Vested or expected to vest at end of year Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Significant Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Stockholders’ Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Geographical [Domain] Geographical [Domain] 2026 Present Value of Future Insurance Profits, Expected Amortization, Year Two Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Concentration Risk Type [Axis] Concentration Risk Type [Axis] Reinsurance recoverables on unpaid losses Reinsurance Recoverables on Unpaid Losses, Gross Sales of available-for-sale securities and equity securities Proceeds From Sale Of Debt Securities, Available-For-Sale And Equity Securities Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and sale of equity securities. Share-Based Payment Arrangement [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Debt-Service Coverage Ratio Debt-Service Coverage Ratio [Abstract] Debt-Service Coverage Ratio Indefinite-Lived Intangible Assets [Line Items] Indefinite-Lived Intangible Assets [Line Items] Cash Flows from Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Total deferred tax liabilities Deferred Tax Liabilities, Gross Statutory Accounting Practices [Table] Statutory Accounting Practices [Table] Basic (in dollars per share) Earnings Per Share, Basic Embedded derivative asset, measurement input Embedded Derivative Asset, Measurement Input Schedule of Intangible Assets by Reportable Segment Schedule Of Finite And Indefinite Lived Intangible Assets By Major Class By Segment [Table Text Block] Disclosure of gross carrying amounts and accumulated amortization for each major specifically identifiable intangible asset class, by reportable segment. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Concentration of Credit or Market Risk [Axis] Concentration of Credit or Market Risk [Axis] Policyholder liability remeasurement (gain) loss Total policyholder liability remeasurement (gain) loss Liability for Future Policy Benefit, Remeasurement Gain (Loss) Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Goodwill [Table] Goodwill [Table] Withdrawals of fixed account balances Withdrawals Of Fixed Account Values, Including Fixed Portion Of Variable Withdrawals of fixed account values, including the fixed portion of variable. Market risk benefit (gain) loss Total market risk benefit (gain) loss Market Risk Benefit, Change in Fair Value, Gain (Loss) 2025 Finite-Lived Intangible Asset, Expected Amortization, Year One MRB Gain (Loss) Market Risk Benefit, Gain (Loss) [Policy Text Block] MRB Gain (Loss) policy. Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Separate Accounts Disclosure [Abstract] Term loan due 2027 SOFR Due 2027 [Member] SOFR Due 2027 Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance U.S. government bonds US Treasury and Government [Member] Premiums Utilization Factor Measurement Input Premiums Utilization Rate [Member] Measurement input using premiums rate at which policyholder exercises optional benefit upon eligibility under insurance contract. Reconciliation of total income (loss) from operations to net income (loss): Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Gross amounts offset Gross amounts offset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Risk-free interest rate, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Non-redeemable preferred securities Nonredeemable Preferred Stock [Member] Specifically identifiable intangible asset and other amortization Amortization of Other Deferred Charges Total revenues Revenues Stock-Based Incentive Compensation Plans Share-Based Payment Arrangement [Text Block] Accrued interest receivable on fixed maturity AFS securities Debt Securities, Available-for-Sale, Accrued Interest Writeoff Summary of Activity for Stock Options Share-Based Payment Arrangement, Option, Activity [Table Text Block] Option exercises, intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Allowance for credit losses Balance as of beginning-of-year Balance as of end-of-year Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Compensation expense Share-Based Payment Arrangement, Expense Unrealized holding gains (losses) arising during the year Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Unrealized Holding Gains (Losses) [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent, Unrealized Holding Gains (Losses) Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Collateral payable for derivative investments Collateral Payable Held For Derivative Investments Fair Value The fair value of cash received as collateral from a counterparty. Loss Contingencies [Table] Loss Contingencies [Table] UL and Other UL And Other [Member] Ul and Other [Member] 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] Current Financial Asset, Not Past Due [Member] Liabilities Liabilities, Fair Value Disclosure [Abstract] Document Fiscal Year Focus Document Fiscal Year Focus Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Assets Assets, Fair Value Disclosure Outstanding at beginning of year (in shares) Outstanding at end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Letter of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Amortized Cost Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss A- Standard & Poor's, A- Rating [Member] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] Summary of Reconciliation of Future Contract Benefits Summary Of Reconciliation Of Future Contract Benefits [Table Text Block] Summary Of Reconciliation Of Future Contract Benefits Liability for Future Policy Benefit Activity [Table] Liability for Future Policy Benefit Activity [Table] Foreign currency contracts Foreign Exchange Contract [Member] Embedded derivative liability, measurement input Embedded Derivative Liability, Measurement Input Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Current Reporting Status Entity Current Reporting Status Retained Earnings Retained Earnings [Member] Gross investment income Gross Investment Income, Operating Ceded Credit Risk, Collateralization [Axis] Ceded Credit Risk, Collateralization [Axis] 90 or more days past due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Total insurance premiums and fee income Premiums Earned, Net RSUs Restricted Stock Units (RSUs) [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Executive Category: Executive Category [Axis] Federal Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reinsurance-Related Notes, Novemebr 1 2019 Reinsurance-Related Notes, Novemebr 1 2019 [Member] Reinsurance-Related Notes, Novemebr 1 2019