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 Origination Year Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] Trading securities change in gross gain (loss) Trading Securities Change In Gross Gain (Loss) Trading Securities Change In Gross Gain (Loss) Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Transfers Into or Out of Level 3, Net Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net Debt and Equity Securities, FV-NI [Line Items] Debt and Equity Securities, FV-NI [Line Items] Debt Securities, Available-for-Sale Debt Securities, Available-for-Sale [Table Text Block] Policyholder account balances and other liabilities Policyholder Account Balances And Other Liabilities [Member] Policyholder Account Balances And Other Liabilities Commodity contracts Commodity Contract [Member] 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. Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Credit contracts Credit Risk Contract [Member] Tabular List, Table Tabular List [Table Text Block] AA- Standard & Poor's, AA- Rating [Member] Adoption of Accounting Standards and Future Adoption of Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Transactions with Affiliates Schedule of Related Party Transactions [Table Text Block] Cash received from disposition, net of cash transferred Proceeds from Divestiture of Businesses, Net of Cash Divested Goodwill [Line Items] Goodwill [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 Measurement Basis [Axis] Measurement Basis [Axis] 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. Adjustment to Compensation: Adjustment to Compensation [Axis] 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. Transactions with Affiliates Related Party Transactions Disclosure [Text Block] 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. Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Unearned Premiums SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Banking regulation, mortgage banking, net worth, minimum Banking Regulation, Mortgage Banking, Net Worth, Minimum 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 Policyholder Account Balance [Roll Forward] Policyholder Account Balance [Roll Forward] Interest accrual Liability for Future Policy Benefit, Expected Net Premium, Interest Income Estimated insurance recoveries Estimated Insurance Recoveries Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk Concentration Risk, Percentage 1-50 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 [Member] Principles of Consolidation Consolidation, Policy [Policy Text Block] Embedded derivative asset, measurement input Embedded Derivative Asset, Measurement Input Stock options Share-Based Payment Arrangement, Option [Member] Cash and Invested Cash Cash and Cash Equivalents, Policy [Policy Text Block] Realized (gain) loss Realized gain (loss) Total realized gain (loss) Realized gain (loss) Debt and Equity Securities, Realized Gain (Loss) Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Dividends paid to Lincoln National Corporation Dividends, Common Stock, Cash Total stockholder’s equity Balance as of beginning-of-year Balance as of end-of-year Equity, Attributable to Parent Debt Securities, Available-for-Sale [Table] Debt Securities, Available-for-Sale [Table] 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 Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] New York NEW YORK 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 Common stock - authorized (in shares) Common Stock, Shares Authorized Investments [Line Items] Investments [Line Items] Investments Credit loss-related adjustments, pre-tax Credit Loss-Related Adjustments, Before Tax Credit Loss-Related Adjustments, Before Tax Variable Annuities Variable Annuity [Member] LIABILITIES AND STOCKHOLDER’S EQUITY Liabilities and Equity [Abstract] Cover [Abstract] 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. Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Useful life of intangible assets Finite-Lived Intangible Asset, Useful Life Effect of cumulative changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax 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 Total Debt Securities, Available-for-Sale, Unrealized Loss Position Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Number of partnerships in alternative investment portfolio Number Of Partnerships In Alternative Investment Portfolio Number of partnerships represented in alternative investment portfolio. Summary of Gross Premiums and Interest Accretion Summary Of Gross Premiums And Interest Accretion [Table Text Block] Summary of gross premiums and interest accretion Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Changes in unrealized gains (losses) included in net income Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) Debt Instrument [Line Items] Debt Instrument [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] Investment commitments for private placements Investment Commitments Limited Private Placements This item represents investment commitments as of the balance sheet date for private placements. Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] 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 Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Direct insurance premiums and fee income Gross Amount Direct Premiums Earned External Credit Rating, Standard & Poor's [Domain] External Credit Rating, Standard & Poor's [Domain] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Assets Other Assets [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Liquidity/Duration Adjustment Measurement Input, Liquidity Duration Adjustment [Member] Measurement Input Liquidity/Duration Adjustment [Member] Income (loss) before taxes Income (loss) before taxes Income (loss) before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Net balance as of end-of-period, net of reinsurance Liability for Future Policy Benefit, after Reinsurance Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Summary of Supplemental Cash Flow Data Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Captive Reinsurance Subsidiaries Captive Reinsurance Subsidiaries [Member] Captive Reinsurance Subsidiaries Unrealized gains (losses) included in OCI, net Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Net unrealized loss on fixed maturity AFS securities Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Variable Interest Entity Type [Axis] Variable Interest Entity Type [Axis] Variable Interest Entity Type 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. Deferred Policy Acquisition Cost [Line Items] Deferred Policy Acquisition Cost [Line Items] 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] Reserves associated with modified coinsurance reinsurance arrangements Total Reserves Associated With Modified Coinsurance The amount of reserves associated with modified coinsurance reinsurance arrangements for portions of the Company's deferred annuity business. Texas TEXAS 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 Insurance premiums Premiums Earned, Excluding Insurance Commissions And Fees, Net Premiums Earned, Excluding Insurance Commissions And Fees, Net Inter company debt Net investment income on inter-company notes Inter Company Debt [Member] Inter-Company Debt [Member] GLB rider fees ceded to LNBAR and attributed fees Variable Annuity Net Derivatives Results Gross Gain (Loss) Includes the net difference in the change in embedded derivative reserves of guaranteed living benefit products and the change in the fair value of the derivative instruments that hedge guaranteed death benefit and guaranteed living benefit products, including the cost of purchasing the hedging instruments. Document Fiscal Period Focus Document Fiscal Period Focus Reduction in liability, due to the net effect of changes in the cash flow assumptions Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) From Cash Flow Change, Mortality Assumptions Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) From Cash Flow Change, Mortality Assumptions Funding Agreement Backed Notes Program Funding Agreement Backed Notes Program [Member] Funding Agreement Backed Notes Program Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Fair Value Option, Disclosures Fair Value Option, Disclosures [Table Text Block] Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Deferred gain on reinsurance Deferred Tax Assets, Deferred Gain On Reinsurance Deferred Tax Assets, Deferred Gain On Reinsurance Investment, Name [Domain] Investment, Name [Domain] Sale Leaseback Transaction, Name [Domain] Sale Leaseback Transaction, Name [Domain] Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] 2029 Lessee, Operating Lease, Liability, to be Paid, Year Four Business Combinations Business Combination [Policy Text Block] Payables for collateral on investments Total payables for collateral on investments Deposits Received for Securities Loaned, at Carrying Value Direct insurance benefits Policyholder Benefits and Claims Incurred, Direct Present Value of Future Insurance Profits, Expected Amortization, Next Five Years [Abstract] Present Value of Future Insurance Profits, Expected Amortization, Next Five Years [Abstract] Net investment income on ceded funds withheld treaties Ceded Funds Withheld Treaties [Member] Ceded Funds Withheld Treaties [Member] Market risk benefit liabilities Liabilities Market risk benefit liabilities Market Risk Benefit, Liability, Amount Entity Address, City or Town Entity Address, City or Town Impact on net premiums, mortality Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience, Mortality Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience, Mortality 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. 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. 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. Fixed maturity AFS securities: Debt Securities, Available-for-Sale, Gain (Loss) [Abstract] Repayment (issuance) of policy loans, net Payments for (Proceeds from) Policy Loans Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Issuance (payment) of short-term debt Proceeds from (Repayments of) Short-Term Debt RSUs Restricted Stock Units (RSUs) [Member] Income Statement and Other Comprehensive Income Location [Domain] Statement of Income Location, Balance [Domain] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Statutory Accounting Practices [Line Items] Statutory Accounting Practices [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company 2028 Long-Term Debt, Maturity, Year Three Investments Invested Assets [Member] Invested Assets [Member] Policyholder Account Balance [Abstract] Policyholder Account Balance [Abstract] Collateral Posted to Counterparty Cash collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset 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] Market Risk Benefit Non-Performance Risk Gain (Loss) AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Parent [Member] 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. Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Other assets – LPR ceded derivative Other Assets LPR Ceded Derivative [Member] Other Assets - LPR Ceded Derivative [Member] Less: Amount representing interest Finance Lease, Liability, Undiscounted Excess Amount Common stock - outstanding (in shares) Common Stock, Shares, Outstanding Insurance [Abstract] 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. Number of missed payments to qualify as delinquent Loans Reported As Delinquent, Number Of Payments Loans Reported As Delinquent, Number Of Payments 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. Legal fees Legal Fees Expected future benefit payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance Internal Revenue Service (IRS) Internal Revenue Service (IRS) [Member] 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. Deferred compensation plans expense Deferred Compensation Arrangement with Individual, Compensation Expense Impact on net premiums, policyholder behavior Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience, Policyholder Behavior Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience, Policyholder Behavior Reinsurance Agreement Reinsurance Agreement [Member] Reinsurance Agreement [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] Nature of Operation, Product Information, Concentration of Risk [Table] Nature of Operation, Product Information, Concentration of Risk [Table] Derivative Instruments and Hedging Activities Disclosure [Abstract] Direct market risk benefit (gain) loss Direct Market Risk Benefit (Gain) Loss Direct market risk benefit (gain) loss. Outstanding derivative instruments with off-balance-sheet risks Derivative, Fair Value, Net [Abstract] Pledged Status [Domain] Pledged Status [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Federal income tax expense (benefit) Total federal income tax expense (benefit) Federal income tax expense (benefit) Income Tax Expense (Benefit) Trading securities Trading Assets, Excluding Debt and Equity Securities [Member] Variable rate Debt Instrument, Basis Spread on Variable Rate Funds withheld reinsurance liabilities – reinsurance-related embedded derivatives Reinsurance-related settlements 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. Cash management agreement Increase (Decrease) In Cash Management Agreement Increase (Decrease) In Cash Management Agreement Other assets Other Assets Credit Rating, Standard & Poor's [Axis] Credit Rating, Standard & Poor's [Axis] Interest credited Policyholder Account Balance, Interest Expense Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Qualifying Hedges Designated as Hedging Instrument [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Separate Account Asset Category [Axis] Separate Account Asset Category [Axis] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Federal income tax accruals Increase (Decrease) in Income Taxes 11 - 30 Years Remaining Life 11 To 30 Years Total notional amounts of derivative financial instruments maturing in 11 - 30 years. Reinsurance ceded Reinsurance Ceded of Direct Policyholder Liability Remeasurement Benefit (Gain) Loss Reinsurance ceded of direct policyholder liability remeasurement benefit (gain) loss. All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Net operating losses Deferred Tax Assets, Operating Loss Carryforwards, Domestic Intangibles Deferred Tax Assets, Goodwill and Intangible Assets Tax-preferred investment income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent MRBs Market Risk Benefit [Text Block] MarketRiskBenefitActivityAbstract Contingencies and Commitments Commitments and Contingencies, Policy [Policy Text Block] Over-Collateralization Ceded Credit Risk, Secured [Member] Commitments and Contingencies Disclosure [Abstract] 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 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 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. 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 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 Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation 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 Statutory Accounting Practice, Jurisdiction [Axis] Statutory Accounting Practice, Jurisdiction [Axis] Wealth Management Business Wealth Management Business [Member] Wealth Management Business LTV 65% to 75% Loan To Value Ratio Sixty Five To Seventy Five [Member] Loan To Value Ratio Sixty Five To Seventy Five [Member] 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 Fair value, concentration of risk Fair Value, Concentration of Risk, Investments Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 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 Balance as of beginning-of-year Balance as of end-of-year Deferred Sale Inducement Cost 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 Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Policyholder liability remeasurement (gain) loss on ceded reinsurance contracts Policyholder Liability [Member] Policyholder Liability PEO Total Compensation Amount PEO Total Compensation Amount Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] 2029 Finance Lease, Liability, to be Paid, Year Four Separate Account Asset Category [Domain] Separate Account Asset Category [Domain] Gross amount of recognized liabilities Derivative liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Other gains (losses) Gain (Loss) on Derivative Instruments [Member] Equity Components [Axis] Equity Components [Axis] 6.03% surplus note, due 2028 Surplus Note6.03 Due2028 [Member] 6.03% Surplus Note, Due 2028 [Member] Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] Summary of Balances of Changes in Net MRB (Assets) Liabilities Market Risk Benefit, Activity [Table Text Block] Net financing cash proceeds related to closing Fortitude Re reinsurance transaction Proceeds From Reinsurance Agreements, Financing Activities Proceeds From Reinsurance Agreements, Financing Activities Derivative Counterparties Derivative Counterparties [Member] Derivative Counterparties Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 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 Net amount at risk Policyholder Account Balance, Net Amount at Risk 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. Summary of Balances and changes in Separate Account Liabilities Separate Account, Liability [Table Text Block] Deferred Tax Assets Components of Deferred Tax Assets [Abstract] Fair Value, Concentration of Risk, Disclosure Items [Domain] Fair Value, Concentration of Risk, Disclosure Items [Domain] 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. 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. Variable Interest Entity Type [Domain] Variable Interest Entity Type [Domain] Variable Interest Entity Type [Domain] 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. Sponsored Investment Funds Sponsored Investment Funds [Member] Sponsored Investment Funds Benefits Total benefits Policyholder Benefits and Claims Incurred, Net 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 Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Entity Address, State or Province Entity Address, State or Province Net Investment Income Net Investment Income [Member] Net Investment Income [Member] Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table] Total assets pledged as collateral Financial Instruments, Owned, at Fair Value Fair value Mortgage loans on real estate Loans Receivable, Fair Value Disclosure Certain legal accruals, before tax Other Non Operating Adjustments, Certain Legal Accruals, Before Tax Other Non Operating Adjustments, Certain Legal Accruals, Before Tax Carrying Value SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Amount Individual: Individual [Axis] Defined contribution plans expense Defined Contribution Plan, Cost Proceeds from divestiture of interest in consolidated subsidiaries Proceeds from Divestiture of Interest in Consolidated Subsidiaries Financial Service Financial Service [Member] Less Than 1 Year Remaining Life Less Than 1 Year Total notional amounts of derivative financial instruments maturing in less than 1 year. Separate account assets Separate Account Asset Document Annual Report Document Annual Report 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] 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. 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 Maximum exposure to loss related to unconsolidated VIE's Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Ceded Credit Risk [Table] Ceded Credit Risk [Table] Operating Segments and Corporate Non Segment Operating Segments And Corporate Non Segment [Member] Operating Segments And Corporate Non Segment Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] 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. Payment of long-term debt, including current maturities Repayment of debt Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Fair Value Decline, Greater Than 20% Fair Value Decline Greater Than Twenty Percent [Member] Fair Value Decline, Greater Than Twenty Percent [Member] VODA Distribution Rights [Member] GLB rider fees ceded to LNBAR Guaranteed Living Benefit Rider Fees Ceded Guaranteed Living Benefit Rider Fees Ceded Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract] 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. Flooring impact of LFPB Liability for Future Policy Benefit, Expected Net Premium, Derecognition 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 Commissions and other expenses Commissions And Other Expenses Commissions And Other 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] Share-based compensation expense Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount International International Equity Fund [Member] International Equity Fund Movement in Deferred Sales Inducements [Roll Forward] Movement in Deferred Sales Inducements [Roll Forward] Net Investment Income SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income Reinsurance recoverable for paid and unpaid claims and claims adjustments Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments Benefits and Interest Credited SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses Capital contribution from Lincoln National Corporation Proceeds from Contributions from Parent Fixed Annuities Fixed Annuity [Member] Structured securities (RMBS, CMBS, ABS) Structured Securities [Member] Structured securities (ABS, MBS, CLOs) Year one Debt-Service Coverage Ratio, Current Fiscal Year Debt-Service Coverage Ratio, Current Fiscal Year Effect of changes in interest rates Market Risk Benefit, Increase (Decrease) from Interest Rate Change 2027 Finance Lease, Liability, to be Paid, Year Two Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Policyholder Account Balances SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable Entity Central Index Key Entity Central Index Key Ceded Credit Risk [Line Items] Ceded Credit Risk [Line Items] Deferrals Deferred Policy Acquisition Cost, Capitalization Exposure associated with collateralization events Credit Derivative, Maximum Exposure, Undiscounted PEO Name PEO Name Mortgage loans on real estate, net of allowance for credit losses Receivables, Fair Value Disclosure [Abstract] Future Principal Payments Schedule of Maturities of Long-Term Debt [Table Text Block] Total revenues Revenues Non-Qualifying Hedges Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 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] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Ceded DFEL Less: ceded DFEL Ceded Deferred Front End Loads Ceded Deferred Front End Loads Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] U.S. net income (loss) Statutory Accounting Practices, Statutory Net Income 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] Policyholder Account Balance Policyholder Account Balance [Text Block] Policyholder Account Balance Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category SOFR + 111 bps surplus note, due 2028 Surplus Note111 Bps Due2028 [Member] 111 bps Surplus Note, Due 2028 [Member] Federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Future contract benefits Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense Cumulative Fair Value Hedging Adjustment Included in the Amortized Cost of the Hedged Assets (Liabilities) Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Total long-term debt Long-Term Debt, Excluding Current Maturities 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Three SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract] Amortization of DAC and VOBA SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost Debt-to-Value [Domain] Debt-to-Value [Domain] Non-redeemable preferred securities Nonredeemable Preferred Stock [Member] Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Table] Gross Carrying Amount Finite-Lived Intangible Assets, Gross 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] Total expenses Benefits, Losses and Expenses Entity Address, Address Line One Entity Address, Address Line One Cost or Amortized Cost SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Cost 4.225% surplus note, due 2037 Surplus Notes4.225 Due2037 [Member] Surplus Notes 4.225%, Due 2037 [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Investments [Domain] Investments [Domain] Securities Investment Securities Investment [Member] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Sales and repayments of other investments Proceeds from Sale and Maturity of Other Investments 2027 Present Value of Future Insurance Profits, Expected Amortization, Year Two Net annuity product features, pre-tax (5) Net Annuity Product Features, Before Tax Net Annuity Product Features, Before Tax 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. Other liabilities Other Liabilities [Member] A- Standard & Poor's, A- Rating [Member] Fair Value as of Grant Date Award Grant Date Fair Value Maturity of the notional amounts of derivative financial instruments Derivative Instrument Detail [Abstract] Accrued inter-company interest payable Accrued Inter Company Interest [Member] Accrued Inter-Company Interest [Member] Operating loss carryforwards Operating Loss Carryforwards Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Total liabilities Deferred Compensation Liability, Current and Noncurrent Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Current discount rate Liability for Future Policy Benefit, Current Weighted-Average Discount Rate Money market funds Separate Account, Money Market Fund [Member] Separate Account, Money Market Fund Summary of Policyholder Account Balances by Range Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Table Text Block] Sale Leaseback Transaction, Description [Axis] Sale Leaseback Transaction, Description [Axis] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Credit loss benefit (expense) on reinsurance-related assets Reinsurance Recoverable, Credit Loss Expense (Reversal) Market Risk Benefit [Line Items] Market Risk Benefit [Line Items] Amortized Cost of the Hedged Assets (Liabilities) Fair Value Hedge Assets 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 liability discount rate remeasurement gain (loss) OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax, Parent Long-term debt Long-Term Debt, Fair Value Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Amortized Cost of Mortgage Loans on Real Estate on Nonaccrual Status Financing Receivable, Nonaccrual [Table Text Block] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Two Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Accounting Standards Update and Change in Accounting Principle [Abstract] Accrued investment income Accrued Investment Income Receivable Investment Type [Axis] Investment Type [Axis] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Total investments Investments Investments Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount 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. Balance as of beginning-of-year Balance as of end-of-year Present Value of Future Insurance Profits, Net 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) Policy Loans Policy Loans Receivable, Policy [Policy Text Block] Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Non-PEO NEO Non-PEO NEO [Member] Letter of credit Letters of Credit Outstanding, Amount Fee income Fee Income 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. 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] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] A+ Standard & Poor's, A+ Rating [Member] Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Share-based compensation arrangements by share-based payment award, award type and Plan name [Domain] Award Type [Domain] Embedded derivative liability Embedded Derivative, Fair Value of Embedded Derivative Liability 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Cash surrender value Separate Account, Liability, Cash Surrender Value, Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Greater Than 90 Days Maturity Greater than 90 Days [Member] Other Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Other revenues Other Income Compensation Amount Outstanding Recovery Compensation Amount Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 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. Foreign currency contracts Foreign Exchange Contract [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] 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 Performing Performing Financial Instruments [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net amount of assets Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral 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 Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] 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. Weighted-average age of policyholders (years) Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age Total gross secured borrowings Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement 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). Revenues Revenues [Abstract] 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 Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Foreign government bonds Foreign Government Debt [Member] 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 Liability for Future Policy Benefit, Activity Liability for Future Policy Benefit, Activity [Table Text Block] Deposit assets, net of allowance for credit losses Deposit Assets Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Schedule of Financial Instruments Owned and Pledged as Collateral Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Effects of Tax credits: Effective Income Tax Rate Reconciliation, Tax Credit, Amount [Abstract] Accrued investment income Increase (Decrease) in Accrued Investment Income Receivable Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Gross Goodwill as of Beginning- of-Year Goodwill, Gross Payment related to certain financing arrangements Payments For Financing Leases And Other, Financing Activities Payments For Financing Leases And Other, Financing Activities Deferrals Deferred Sale Inducement Cost, Capitalization 2026 Long-Term Debt, Maturity, Year One Financial Instruments [Domain] Financial Instruments [Domain] Total deferred tax liabilities Deferred Tax Liabilities, Gross 2030 Long-Term Debt, Maturity, Year Five 6 - 10 Years Remaining Life 6 To 10 Years Total notional amounts of derivative financial instruments maturing in 6 - 10 years. 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. Performance shares Performance Shares [Member] Reinsurance ACL and deposit assets Reinsurance Recoverables Allowance And Deposit Assets Amount of allowance for credit loss on reinsurance recoverable and deposit assets. Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 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. Other nontaxable or nondeductible items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Net Investment Income [Line Items] Net Investment Income [Line Items] Sale-Leaseback Arrangements Sale Leaseback Arrangements [Member] Sale-Leaseback Arrangements [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. LPR ceded derivative Other assets - LPR ceded derivative LPR Ceded Derivative [Member] LPR Ceded Derivative [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Net amount Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Minimum Minimum [Member] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Net operating cash payments related to closing Fortitude Re reinsurance transaction Increase (Decrease) in Prepaid Reinsurance Premiums Specifically identifiable intangible asset and other amortization Amortization of Other Deferred Charges Accrued interest receivable excluded from credit losses Financing Receivable, Accrued Interest, before Allowance for Credit Loss Interest credited on assumed reinsurance contracts (interest recoveries on ceded reinsurance contracts) Assumed Reinsurance Contracts [Member] Assumed Reinsurance Contracts [Member] Adjusted balance as of beginning-of-year Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change Company Selected Measure Name Company Selected Measure Name Effect of changes in future expected policyholder behavior Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected U.S. government bonds US Government Debt Securities [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] 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. Short-Term and Long-Term Debt Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table] Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Assumed/ceded reinsurance contracts Assumed/ Ceded Reinsurance Contracts [Member] Assumed/ Ceded Reinsurance Contracts GLB rider fees ceded to LNBAR, pre-tax Guaranteed Living Benefit Rider Fees Ceded, Before Tax Guaranteed Living Benefit Rider Fees Ceded, Before Tax Policyholder Liability Discount Rate Remeasurement Gain (Loss) AOCI, Liability for Future Policy Benefit, Parent [Member] Stockholders' Equity Note [Abstract] Fixed maturity AFS securities Separate Account, Debt Security [Member] Goodwill [Roll Forward] Goodwill [Roll Forward] Contingencies and Commitments Commitments and Contingencies Disclosure [Text Block] Possible decrease in unrecognized tax benefits Decrease in Unrecognized Tax Benefits is Reasonably Possible Present Value of Expected Future Policy Benefits Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Change in foreign currency exchange rate adjustment AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Foreign Currency Exchange Rate, Parent [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Foreign Currency Exchange Rate, Parent Segment Reporting Segment Reporting, Policy [Policy Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Liability for Future Policy Benefit, Activity [Line Items] Liability for Future Policy Benefit, Activity [Line Items] 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. Entity Small Business Entity Small Business Maximum debt to capital ratio Debt Covenant, Maximum Debt-To-Capital Ratio Total Aggregate Indebtedness divided by Net Capital, low end of range. Income Tax Disclosure [Abstract] Unrecognized tax benefits, income tax penalties and interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Commissions and other expenses Total Other Cost and Expense, Operating Changes in non-performance Market Risk Benefit, Period Increase (Decrease) Reinsurance-related embedded derivative assets Deferred Tax Liabilities, Reinsurance-Related Embedded Derivative Asset Reinsurance-related embedded derivative asset. 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. Document Transition Report Document Transition Report 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 Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Total future minimum lease payments Finance Lease, Liability, to be Paid Underlying Securities Award Underlying Securities Amount Gross gains Debt Securities, Available-for-Sale, Realized Gain 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. Fixed Income Assets At Book Value Fixed Income Assets At Book Value [Member] Fixed Income Assets At Book Value Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Market risk benefit (gain) loss on ceded reinsurance contracts Market Risk Benefit [Member] Market Risk Benefit Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change Federal Income Taxes Income Tax Disclosure [Text Block] Interest accrual Interest Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense Ceded Credit Risk, Collateralization [Domain] Ceded Credit Risk, Collateralization [Domain] Service agreement Service agreement payments (receipts) Service Agreement [Member] Service Agreement [Member] White Chapel LLC White Chapel LLC [Member] White Chapel LLC [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Non-cash dividend to LNC for settlement of an inter-company tax receivable Non-Cash Dividend To Settle Tax Receivable Non-Cash Dividend To Settle Tax Receivable Policy loans Policy Loans [Member] Document Type Document Type Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position [Abstract] Name Outstanding Recovery, Individual Name 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. Product and Service [Axis] Product and Service [Axis] Policy loans Loans, Gross, Insurance Policy Reinsurance recoverables on unpaid losses Reinsurance Recoverables on Unpaid Losses, Gross Ceded Credit Risk, Reinsurer [Domain] Reinsurer, Name [Domain] COLI Life Insurance, Corporate or Bank Owned, Amount Derivative instruments Derivative Assets, Excluding Embedded Derivatives, Fair Value Derivative Assets, Excluding Embedded Derivatives, Fair Value Annuities and life insurance Life and Annuity Insurance Product Line [Member] Reinsurance assumed Assumed from Other Companies Assumed Premiums Earned Investment Income [Table] Investment Income [Table] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items] Statistical Measurement [Axis] Statistical Measurement [Axis] Loss contingency accrual Loss Contingency Accrual Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change 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. Lapse Measurement Input, Lapse Rate [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash and invested cash Separate Account, Cash and Cash Equivalents [Member] Disposal Group Name [Axis] Disposal Group Name [Axis] Statutory Information and Restrictions Statutory Insurance Financial Information Disclosure [Text Block] Statutory Insurance Financial Information Disclosure Benefit payments Market Risk Benefit, Benefit Payment 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. 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. Debt-to-Value [Axis] Debt-to-Value [Axis] Exchange-traded funds Separate Account Exchange Traded Funds [Member] Separate Account Exchange-traded Funds [Member] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Effect of cumulative changes in non-performance risk AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax Total other comprehensive income (loss), net of tax Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Asset-Backed VIE Asset-Backed VIE [Member] Asset-Backed VIE SCHEDULE I - 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] Insurance liabilities and reinsurance-related balances Change In Insurance Liabilities And Reinsurance Related Balance Change In Insurance Liabilities And Reinsurance Related Balance Total operating expenses Operating Expenses 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. Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Accrued expenses Increase (Decrease) in Accrued Liabilities Related Party Transaction [Table] Related Party Transaction [Table] Gross deposits Separate Account, Liability, Deposit Other tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Embedded derivative liability, measurement input Embedded Derivative Liability, Measurement Input Non-cash transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] 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 Schedule of Realized Gain (Loss) Schedule of Realized Gain (Loss) [Table Text Block] Change in our unrealized gain on derivative instruments in accumulated OCI AOCI Attributable to Parent, Net of Tax [Roll Forward] Overnight and Continuous Maturity Overnight and on Demand [Member] Policyholder Account Balance [Table] Policyholder Account Balance [Table] 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 Reinsurance Reinsurance Accounting Policy [Policy Text Block] 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 entity's consolidated net income (loss). Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] Auditor Location Auditor Location Shares and Stockholder's 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. Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Reinsurer, Name [Axis] Reinsurer, Name [Axis] Net Amount SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net Reinsurance recoverables, net of allowance for credit losses Reinsurance Recoverables, Including Reinsurance Premium Paid Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Issuances New incidence Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance Financial Instruments Owned and Pledged as Collateral [Line Items] Financial Instruments Owned and Pledged as Collateral [Line Items] Total Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process Less: Amount representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Income taxes Income Taxes Paid, Net Other nontaxable or nondeductible items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Corporate bonds Corporate Bond Securities [Member] 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). Market risk benefit (gain) loss Market risk benefit (gain) loss Total market risk benefit (gain) loss Market risk benefit (gain) loss Market Risk Benefit, Change in Fair Value, Gain (Loss) Fixed Maturity AFS Securities - Evaluation for Recovery of Amortized Cost Available For Sale Securities Evaluation For Recovery Of Amortized Cost Policy [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. 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Two Realized Gain (Loss) Gain (Loss) On Securities Disclosure [Text Block] Gain (Loss) On Securities Disclosure Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] LPINE, Netting Lincoln Pinehurst Reinsurance Company (Bermuda), Netting [Member] Lincoln Pinehurst Reinsurance Company (Bermuda), Netting Ceded MRBs Ceded Mrbs [Member] Ceded MRBs [Member] Mortgage loans on real estate, gross Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Long-term senior note issued in exchange for corporate bond available for sale security Long-Term Senior Note Issued In Exchange For Corporate Bond AFS Security Amount of long-term senior note issued in exchange for a corporate bond AFS security from a non-affiliated VIE whose primary activities are to acquire, hold, and issue notes and loans, as well as pay and collect interest on the notes and loans. Group Protection Group Protection Segment [Member] The Group Protection segment offers group life, disability and dental insurance to employers. Net unrealized loss on trading securities Deferred Tax Asset, Debt Securities, Trading, Unrealized Loss Fair Value and Gross Unrealized Losses in a Continuous Unrealized Loss Position Schedule of Available-for-Sale Securities Whose Value is Below Amortized Cost Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date MRB assets Mrb Assets [Member] MRB Assets [Member] Other corporate initiatives related to the reinsurance transaction Other Non Operating Adjustments, Reinsurance Transaction, Before Tax Other Non Operating Adjustments, Reinsurance Transaction, Before Tax 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] 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. 2030 Finite-Lived Intangible Asset, Expected Amortization, Year Five 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 Product Information [Line Items] Product Information [Line Items] Stockholder’s Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Insurance liabilities and reinsurance-related balances Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other Foreign government bonds Debt Security, Government, Non-US [Member] Other investments Other Investments [Member] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] Derivative Instruments Derivative Instruments, Excluding Embedded Derivative Instruments [Member] Derivative Instruments, Excluding Embedded Derivative Instruments Geographic Concentration Risk Geographic Concentration Risk [Member] 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. Fair Value Fair Value Of Related Investments Or Collateral [Abstract] Fair Value Of Related Investments Or Collateral [Abstract] 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 Extraordinary dividend to LNC in the form of fixed maturity AFS securities, mortgage loans on real estate and accrued investment income Extraordinary dividend to LNC in the form of fixed maturity AFS securities, mortgage loans on real estate and accrued investment income Payments of Capital Distribution Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Decrease 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. Life Insurance in Force SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net [Abstract] Entity Current Reporting Status Entity Current Reporting Status Policyholder account balances Policyholder Account Balances, Fair Value Policyholder Account Balances, Fair Value Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] Due in one year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Federal income tax expense (benefit) at federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Foreign tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent Gross amount of recognized liabilities Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement Financial Instrument [Axis] Financial Instrument [Axis] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] Total intent to sell impairments Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sell before Recovery Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Expenses Benefits, Losses and Expenses [Abstract] Balance Sheets [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Greater Than Twelve Months Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Share-based compensation expense Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent 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. Regulatory expense Regulatory Expense Regulatory Expense Current Fiscal Year End Date Current Fiscal Year End Date 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 Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Equity Securities Equity Securities without Readily Determinable Fair Value [Policy Text Block] Deferrals Deferred Front End Loads Additions The amount of deferred front end loads capitalized during the period. Payables for Collateral on Investments Schedule of Securities Financing Transactions [Table Text Block] Funds withheld reinsurance-related liabilities – excluding embedded derivatives Derivative Liability Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Interest rate contracts Interest Rate Contract [Member] Industrial, miscellaneous and all other Industrial, Miscellaneous, and All Others [Member] Effect of changes in future expected assumptions Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption 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. SCHEDULE IV - CONSOLIDATED REINSURANCE SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block] Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss 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]. Fair Value of Assets and Liabilities on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Equity securities Equity Securities, FV-NI, Current 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. Balance as of beginning-of-year Balance as of end-of-year Unrecognized Tax Benefits Maximum net premium ratio at individual cohort level Maximum Net Premium Ratio At Individual Cohort Level Maximum net premium ratio at individual cohort level. Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] SOFR + 155 bps surplus note, due 2037 Surplus Note155 Bps Due2037 [Member] 155 bps Surplus Note, Due 2037 [Member] 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. 2027 Long-Term Debt, Maturity, Year Two Decrease in the liability based on policyholder behavior Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Policyholder Behavior Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Policyholder Behavior Composition of Current and Past Due Mortgage Loans on Real Estate Financing Receivable, Past Due [Table Text Block] VOBA Present Value of Future Insurance Profits [Table Text Block] Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation 2028 Present Value of Future Insurance Profits, Expected Amortization, Year Three Measure: Measure [Axis] 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. 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. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Cash surrender value Policyholder Account Balance, Cash Surrender Value 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. Disposal Group Classification [Domain] Disposal Group Classification [Domain] Schedule of Reclassifications Out of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Purchases of available-for-sale securities and equity securities Payments To Acquire Debt Securities, Available-For-Sale And Equity Securities, FV-NI Payments To Acquire Debt Securities, Available-For-Sale And Equity Securities, FV-NI U.S. capital and surplus Statutory Accounting Practices, Statutory Capital and Surplus, Balance Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount 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. Investment expense Investment Income, Investment Expense Entity Tax Identification Number Entity Tax Identification Number Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Reconciliation of DFEL Reconciliation Of Deferred Front End Loads Disclosure [Table Text Block] Reconciliation of Deferred Front End Loads Disclosure Derivative investments Derivative [Member] Indexed annuity ceded embedded derivatives RILA, fixed indexed annuity and IUL contracts 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. Common stock - issued (in shares) Common Stock, Shares, Issued Weighted average remaining operating lease term Operating Lease, Weighted Average Remaining Lease Term 2029 Long-Term Debt, Maturity, Year Four CMBS Commercial Mortgage-Backed Securities [Member] Goodwill and Specifically Identifiable Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Less: reinsurance recoverables Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance Reductions for securities disposed Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sold Other investments Gross Investment Income Including Derivatives, Operating Gross Investment Income Including Derivatives, Operating Entity Public Float Entity Public Float Schedule of Goodwill Schedule of Goodwill [Table Text Block] Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount 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] 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. 4.50% surplus note, due 2038 Surplus Note4.50 Due2038 [Member] 4.50% Surplus Note, Due 2038 [Member] Mark-to-market gains (losses) Fair Value, Option, Aggregate Differences, Loans and Long-Term Receivables Other Operations Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Reinsurance recoverable, allowance for credit loss Reinsurance Recoverable, Allowance for Credit Loss 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. Separate Accounts Disclosure [Abstract] 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 Change in fair value of embedded derivative instrument and other Policyholder Account Balance, Increase (Decrease) from Other Change Policyholder Liability Remeasurement Gain (Loss) Liability for Future Policy Benefit [Policy Text Block] MBS Collateralized Mortgage-Backed Securities [Member] 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. Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Excess non-cash collateral received Excess Non-Cash Collateral Received excess non-cash collateral received . Reinsurance ceded Ceded to Other Companies Ceded Premiums Earned SCHEDULE III - CONSOLIDATED SUPPLEMENTARY INSURANCE INFORMATION SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Disclosure [Text Block] Investment gains (losses) Investment Gains (Losses) Investment Gains (Losses) Interest and Debt Expense Interest Expense, Policy [Policy Text Block] Fortitude Re Fortitude Re [Member] Fortitude Re Deferred acquisition costs, value of business acquired, deferred sales 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. Reinsurance Disclosures [Abstract] Reconciles of MRBs Assets and Liabilities Reconciles Of MRBs Assets And Liabilities [Table Text Block] Reconciles Of MRBs Assets And Liabilities Long-term debt Long Term Debt And Fair Value Hedges Carrying amount of long-term debt, net of unamortized discount or premium, including current and 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. Schedule of Investment Holdings Movements Schedule Of Investment Holdings Movements [Table Text Block] Schedule of investment holdings movements. Effect of cumulative changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax Balance as of end-of-year, net of reinsurance Deferred Front End Loads, Net Deferred Front End Loads, Net Items Included in Net Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Investment income 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 Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Deposits assets Deposits Assets Common Stock Common Stock [Member] Intent to sell impairments Debt Securities, Available-For-Sale, Intent To Sell Impairments Debt Securities, Available-For-Sale, Intent To Sell Impairments Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] 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] Net increase (decrease) in cash and invested cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation SOFR + 100 bps surplus note, due 2037 Surplus Note100 Bps Due2037 [Member] 100 bps Surplus Note, Due 2037 [Member] 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 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 Insurance Premiums Revenue Recognition, Premiums Earned, Policy [Policy Text Block] 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. Range [Domain] Statistical Measurement [Domain] Effect on liability based on mortality Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Mortality Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Mortality Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Realized Gain (Loss) Debt And Equity Securities, Realized Gain (Loss) [Member] Debt And Equity Securities, Realized Gain (Loss) Amortized cost Amortized Cost Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Short-term debt Short-Term Debt, Fair Value Related Party Transaction [Axis] Related Party Transaction [Axis] Mortgage-backed and asset-backed securities Mortgage Backed And Asset Backed Securities [Member] Mortgage-Backed And Asset-Backed Securities [Member] Benefit payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Greater Than 150 Basis Points Above Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater [Member] Tax Jurisdiction of Domicile [Extensible Enumeration] Tax Jurisdiction of Domicile [Extensible Enumeration] Valuation Technique [Domain] Valuation Approach and Technique [Domain] Short-Term and Long-Term Debt Debt, Policy [Policy Text Block] Gains (Losses) in OCI and Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 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 Increases for prior year tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Surplus notes Subordinated Long-Term Debt, Noncurrent Credit loss-related adjustments Credit Loss-Related Adjustments Credit Loss-Related Adjustments Effect of actual variances from expected experience, net of reinsurance Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Net Of Reinsurance Liability For Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience, Net Of Reinsurance Pledged Status [Axis] Pledged Status [Axis] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Lincoln Pinehurst Reinsurance Company (Bermuda) Lincoln Pinehurst Reinsurance Company (Bermuda) [Member] Lincoln Pinehurst Reinsurance Company (Bermuda) 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, Parent [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Change In Future Contract Benefits And Policyholder Account Balances, Parent Liabilities Liabilities, Fair Value Disclosure [Abstract] Movement in Present Value of Future Insurance Profits [Roll Forward] Movement in Present Value of Future Insurance Profits [Roll Forward] Financing Receivable, Nonaccrual [Table] Financing Receivable, Nonaccrual [Table] Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Total deferred tax assets Deferred Tax Assets, Gross Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Short-term debt Short-Term Debt Weighted-average duration of future policyholder benefit liability Liability for Future Policy Benefit, Weighted-Average Duration Schedule of Fair Value of Separate Account Assets Fair Value, Separate Account Investment [Table Text Block] U.S. net gain (loss) from operations, after-tax Statutory Accounting Practices Statutory Net Gain (Loss) From Operations After Tax Amount Amount of net gain (loss) from operations, after tax, for the period determined using accounting principles prescribed or permitted by insurance regulators. Cash management agreement Net investment income associated with cash management agreement Cash Management Agreement [Member] Cash Management Agreement [Member] Measurement Input Type [Domain] Measurement Input Type [Domain] Policyholder Account Balance [Line Items] Policyholder Account Balance [Line Items] Schedule of Available-for-Sale Securities Reconciliation Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Other realized gain (loss) Other Investments Net Realized Gain (Loss) Other Investments Net Realized Gain (Loss) Funds withheld reinsurance-related liabilities – excluding embedded derivatives Reinsurance Related Liabilities Excluding Embedded Derivatives [Member] Reinsurance Related Liabilities Excluding Embedded Derivatives 2028 Finance Lease, Liability, to be Paid, Year Three Policyholder assessments Policyholder Account Balance, Policy Charge Fee income Insurance Commissions and Fees Compensation and benefit plans Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Reductions for mortgage loans on real estate charged off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Other funds Separate Account, Other Fund [Member] Separate Account, Other Fund Reinsurance recoverables on unpaid losses, amortization Reinsurance Recoverables On Unpaid Losses, Amortization Reinsurance Recoverables On Unpaid Losses, Amortization Award Timing MNPI Disclosure Award Timing MNPI Disclosure [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 Cash and invested cash Cash and Cash Equivalents [Member] Carrying Value Carrying Value Of Payables For Collateral On Investments [Abstract] Carrying Value Of Payables For Collateral On Investments [Abstract] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Share-based payment arrangement, expense Share-Based Payment Arrangement, Expense Other Long-Duration Insurance, Other [Member] Hedging Designation [Domain] Hedging Designation [Domain] Goodwill and Intangible Assets Disclosure [Abstract] Reinsurance Related Assets Reinsurance Related Assets [Member] Reinsurance Related Assets [Member] Total liabilities and stockholder’s equity Liabilities and Equity Unrealized holding gains (losses) AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Unrealized Holding Gains (Losses), Parent [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent, Unrealized Holding Gains (Losses), Parent Funded Status of Employee Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Balance as of beginning-of-year Balance as of end-of-year Deferred Policy Acquisition Cost Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Gross deposits Policyholder Account Balance, Premium Received Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Other Deferred Tax Assets, Other Credit Derivative [Table] Credit Derivative [Table] Ceded MRBs Ceded MRBs [Member] Ceded MRBs [Member] Non-cash collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Other items, pre-tax Other Non Operating Adjustments, Before Tax Other Non Operating Adjustments, Before Tax 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 Statutory Financial Information 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. Schedule of Operating Lease Maturity Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Separate Accounts Separate Account [Text Block] Less: Ceded MRB assets (liabilities) Ceded Market Risk Benefit Assets (Liabilities) Ceded Market Risk Benefit Assets (Liabilities) Purchases of other investments Payments to Acquire Other Investments 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. Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Pay vs Performance Disclosure [Line Items] Payout Annuities Payout Annuities [Member] Payout Annuities [Member]. Present value of minimum lease payments Present value of minimum lease payments Operating Lease, Liability 90 or more days past due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Letter of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Liabilities Liabilities [Abstract] Federal Home Loan Bank Federal Home Loan Bank [Member] Federal Home Loan Bank DAC and VOBA Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net 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] Impairment Goodwill, Impairment Loss Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Sale Leaseback Transaction [Line Items] Sale Leaseback Transaction [Line Items] Variable Interest Entity [Table] Variable Interest Entity [Table] Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2028 Lessee, Operating Lease, Liability, to be Paid, Year Three Number of policyholders deemed not economically harmed Number Of Policyholders Deemed Not Economically Harmed Number Of Policyholders Deemed Not Economically Harmed Present Value of Expected Net Premiums Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] 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] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Nontaxable or nondeductible items: Effective Income Tax Rate Reconciliation, Nontaxable Or Nondeductible, Percent [Abstract] Effective Income Tax Rate Reconciliation, Nontaxable Or Nondeductible, Percent Measurement Input Type [Axis] Measurement Input Type [Axis] Sustainable Financing Sustainable Financing [Member] Sustainable Financing Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name SOFR + 226 bps surplus note, due 2028 Surplus Note226 Bps Due2028 [Member] 226 bps Surplus Note, Due 2028 [Member] Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 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. Secured Debt Secured Debt [Member] Maturities of available-for-sale securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Financing Receivable, Nonaccrual [Line Items] Financing Receivable, Nonaccrual [Line Items] Excluding Embedded Derivatives Excluding Embedded Derivatives [Member] Excluding Embedded Derivatives Hybrids Hybrid Securities [Member] Hybrid Securities Changes in Unrealized Gains (Losses) Included in OCI Unrealized Gain (Loss) on Investments [Table Text Block] Total Total Long-Term Debt Legal Entity [Axis] Legal Entity [Axis] Total assets Assets Assets Fair Value Portion at Other than Fair Value Measurement [Member] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year One Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] 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 Geographical [Domain] Geographical [Domain] Income Taxes Income Tax, Policy [Policy Text Block] Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Components of Deferred Tax Assets and Liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] Cash Flows from Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Other Segment Reporting, Other Segment Item, Amount Over 30 Years Remaining Life Over 30 Years Total notional amounts of derivative financial instruments with maturity dates over 30 years Transaction expenses Business Exit Costs 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. Concentration Risk Type [Axis] Concentration Risk Type [Axis] Borrowing and lending limit, percent of admitted assets Borrowing And Lending Limit, Percent Of Admitted Assets Borrowing And Lending Limit, Percent Of Admitted Assets Assets Assets, Fair Value Disclosure [Abstract] 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Four Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Schedule of Reconciliation of Separate Account Liabilities Schedule Of Reconciliation Of Separate Account Liabilities [Table Text Block] Schedule of Reconciliation of Separate Account Liabilities 2026 Finance Lease, Liability, to be Paid, Year One Other investments Other investments Other Investments Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Attributed fees collected Market Risk Benefit, Attributed Fee Collected ROU assets obtained in exchange for new lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Cumulative Effect, Period of Adoption, Adjustment Cumulative effect from adoption of new accounting standards Cumulative Effect, Period of Adoption, Adjustment [Member] Significant Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Hannover Life Hannover Life [Member] Hannover Life 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. Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Investments [Table] Investments [Table] Investments Related Party Related Party [Member] Asset Pledged as Collateral Asset Pledged as Collateral [Member] Public utilities Public Utility, Bonds [Member] Federal Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] PEO PEO [Member] Transfers Into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Trading securities Trading securities Debt Securities, Trading Unamortized adjustments from discontinued hedges, assets Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Deferred front-end loads 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. Bain Capital Prairie, LLC Bain Capital Prairie, LLC [Member] Bain Capital Prairie, LLC Issuances Market Risk Benefit, Issuance, Net Market Risk Benefit, Issuance, Net Reinsurance recoverables Reinsurance Recoverables, Gross Change in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] 2030 Present Value of Future Insurance Profits, Expected Amortization, Year Five Retained Earnings (Deficit) Retained Earnings [Member] Banks, trusts and insurance companies Banks, Trust and Insurance, Equities [Member] Intangible Assets, Gross Intangible Assets, Gross (Excluding Goodwill) [Abstract] Sales Force Intangibles Sales Force Intangibles [Member] Sales Force Intangibles [Member] Share-Based Payment Arrangement [Abstract] Statements of Income [Abstract] Income Statement [Abstract] Cash and invested cash Cash and invested cash as of beginning-of-year Cash and invested cash as of end-of-year Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Derivative investments Derivative Asset 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. Greater Than Twelve Months Twelve months or greater Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Changes arising during the year OCI, before Reclassifications, before Tax, Attributable to Parent Interest and Debt Expense Interest Expense [Member] Other investments – short-term investments Investments, Fair Value Disclosure Credit loss (expense) reversal Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Products and Services [Domain] Product and Service [Domain] 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. 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. 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 Net investment income Net investment income Net investment income Net Investment Income 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. Equity securities, measurement input Equity Securities, FV-NI, Measurement Input Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities Liabilities, Fair Value Disclosure Percentage of Amount Assumed to Net SEC Schedule, 12-17, Insurance Companies, Reinsurance, Premium, Percentage Assumed to Net Notional Amounts Total Derivative, Notional Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Other liabilities – ceded MRBs Market Risk Benefit, Liability [Member] Market Risk Benefit, Liability Tax-preferred investment income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] 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. Participating policies as a percentage of the face amount of the insurance in force Participating Insurance, Percentage of Gross Insurance in Force City Area Code City Area Code Changes in Allowance for Credit Losses on Mortgage Loans on Real Estate Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Mortgage loans on real estate Mortgages [Member] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Utilization of GLB Withdrawls Measurement Input, Withdrawal Rate [Member] 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]. Deferred Net deferred tax asset (liability) Deferred Tax Liabilities, Net General and administrative expenses General and Administrative Expense Cash Flows from Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] A Standard & Poor's, A Rating [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. 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 hedges Fair Value Hedging [Member] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Related Party Transactions [Abstract] Indexed annuity ceded embedded derivatives Other assets - indexed annuity ceded embedded derivatives Indexed Annuity Ceded Embedded Derivatives [Member] Indexed Annuity Ceded Embedded Derivatives [Member] Equity securities Equity Securities, FV-NI Cash flow hedges Cash Flow Hedging [Member] Other Revenues Other Revenues And Fees [Policy Text Block] Describes an entity's accounting policy for other revenues and fees. Other liabilities Other Liabilities Goodwill Net Goodwill as of Beginning- of-Year Net Goodwill as of End- of-Year Goodwill Loss contingency, estimate Loss Contingency, Estimate of Possible Loss Equity market contracts Equity Contract [Member] Schedule of Lease Costs Lease, Cost [Table Text Block] 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. Mortgage Loans on Real Estate Mortgage Banking Activity [Policy Text Block] Losses from loan modifications Financing Receivable, Modified in Period, Amount Interest Credited Interest Credited [Policy Text Block] Describes an entity's accounting policy for interest credited. Deferred Deferred Federal Income Tax Expense (Benefit) Fair Value SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Fair Value 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. Transfers Out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Unrecognized Tax Benefits [Roll Forward] Unrecognized Tax Benefits [Roll Forward] Non-performance risk adjustment Derivative Credit Risk Valuation Adjustment, Derivative Liabilities RILA, Fixed Annity And IUL Contracts RILA, Fixed Annity And IUL Contracts [Member] RILA, Fixed Annity And IUL Contracts Balanced funds Separate Account, Balanced Fund [Member] Separate Account, Balanced Fund Auditor Name Auditor Name Protective Protective [Member] Protective [Member] Market risk benefit, measurement input Market Risk Benefit, Measurement Input Investment gains (losses), pre-tax Investment Gains (Losses), Before Tax Investment Gains (Losses) Reconciling Item Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Payment related to sale-leaseback transactions Payments Of Sale Leaseback Transactions Payments Of Sale Leaseback Transactions Capital Loss Carryforward Capital Loss Carryforward [Member] Supplemental Cash Flow Information Supplemental Cash Flow Information [Abstract] Beginning Fair Value Ending Fair Value Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Accumulated Impairment as of Beginning- of-Year Goodwill, Impaired, Accumulated Impairment Loss Other Performance Measure, Amount Other Performance Measure, Amount U.S. government bonds US Treasury and Government [Member] MRBs Market Risk Benefits [Member] Market Risk Benefits [Member] Short-term debt Total short-term debt Debt, Current Trading Securities Marketable Securities, Policy [Policy Text Block] Separate Account, Liability [Roll Forward] Separate Account, Liability [Roll Forward] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] 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. Non-cash dividend to Lincoln National Corporation for settlement of an inter-company tax receivable Dividends 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. Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] 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 Derivative Instrument [Axis] Derivative Instrument [Axis] In-force updates and other changes in MRBs Market Risk Benefit, Increase (Decrease) from Other Assumption 4.00% surplus note, due 2037 Surplus Notes4.00 Due2037 [Member] Surplus Notes, 4.00% Due 2037 [Member] Commercial Commercial Real Estate Portfolio Segment [Member] Investments: Investments [Abstract] 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. Entity [Domain] Entity [Domain] Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Withdrawals Policyholder Account Balance, Withdrawal Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Gain on disposition of business Realized gain (loss) on sale of subsidiaries/businesses Gain (Loss) on Disposition of Business Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Lender Name [Axis] Lender Name [Axis] Operating lease ROU asset Operating Lease, Right-of-Use Asset Unamortized premium (discount) Financing Receivable, Unamortized Purchase Premium (Discount) 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 Percentage of Amount Assumed to Net SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Percentage Assumed to Net Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Investments dedicated to fund liabilities Deferred Compensation Plan Assets DAC Deferred Policy Acquisition Costs [Table Text Block] Decreases for prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Operating lease expense Operating Lease, Cost 2026 Present Value of Future Insurance Profits, Expected Amortization, Year One Retirement Plan Services Retirement Plan Services [Member] Retirement Plan Services Carrying Amount Reported Value Measurement [Member] Policyholder account balances Policyholder Account Balances [Member] Policyholder Account Balances [Member] 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 Nonaccrual Financing Receivable, Nonaccrual Consumer Non-Cyclical Industry Consumer Non Cyclical Industry [Member] Consumer Non-Cyclical Industry Premiums Premiums Earned, Net [Abstract] Derivative Instruments Derivatives, Policy [Policy Text Block] Segment Information Segment Reporting Disclosure [Text Block] Goodwill [Table] Goodwill [Table] 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] Non-Qualifying Hedges Not Designated as Hedging Instrument [Member] 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. 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 Current Current Federal Tax Expense (Benefit) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Gross Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Weighted-average crediting rate Policyholder Account Balance, Weighted Average Crediting Rate 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] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Other equity funds Other Equity Fund [Member] Other Equity Fund Weighted Average Range Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Securities Pledged by Contractual Maturity Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block] Volatility Measurement Input, Price Volatility [Member] Transition of FHLB lending program to FHLB funding agreements Amounts Transferred From FHLB Lending Program To FHLB Funding Agreements Amounts Transferred From FHLB Lending Program To FHLB Funding Agreements Fixed maturity AFS and trading securities, measurement input Debt Securities, Available-for-Sale, Measurement Input Components and Changes in AOCI Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Nonperforming Nonperforming Financial Instruments [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] Gross Amount SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross RMBS Residential Mortgage-Backed Securities [Member] Broker-dealer expenses Broker dealer expenses Commissions, general and administrative, and taxes, licenses and fees expense related to broker dealers. Funds withheld reinsurance liabilities Funds Held under Reinsurance Agreements, Liability Present value of minimum lease payments Finance Lease, Liability Arrangement Duration Trading Arrangement Duration State insurance department, statutory to NAIC, amount of reconciling item State Insurance Department, Statutory to NAIC, Amount of Reconciling Item Fair Value of Trading Securities Debt Securities, Trading, and Equity Securities, FV-NI [Table 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. 1 - 5 Years Remaining Life 1 To 5 Years Total notional amounts of derivative financial instruments maturing in 1 - 5 years. Segments [Axis] Segments [Axis] Non-performance risk adjustment Derivative Credit Risk Valuation Adjustment, Derivative Assets Commissions and Other Expenses [Abstract] n/a Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other Payment for (Proceeds from) Other Investing Activity Thereafter Long-Term Debt, Maturity, after Year Five Stock-Based Incentive Compensation Plans Share-Based Payment Arrangement [Text Block] The Lincoln National Life Insurance Company The Lincoln National Life Insurance Company [Member] The Lincoln National Life Insurance Company Up to 30 Days Maturity Less than 30 Days [Member] Investments pledged for FHLB lending program 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. ASSETS Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Taxes, licenses and fees Cost, Direct Tax and License Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Debt Instrument [Axis] Debt Instrument [Axis] 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 Retirement and Deferred Compensation Plans Retirement Benefits [Text Block] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Fair value of portfolio rated below investment grade Fair Value Of Portfolio Rated Below Investment Grade Fair value of portfolio rated below investment grade. Commissions Insurance Commissions Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Investment, Name [Axis] Investment, Name [Axis] Loans with fair value option in non-accrual Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status 30 to 59 days past due Financial Asset, 30 to 59 Days Past Due [Member] Entity Voluntary Filers Entity Voluntary Filers Reconciliation of total income (loss) from operations to net income (loss): Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Additions for securities for which credit losses were not previously recognized Total credit loss benefit (expense) Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not Previously Recorded Other Operating Expense SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense Non-Performance Risk Measurement Input, Credit Spread [Member] Intangible Assets, Net Intangible Assets, Net (Excluding Goodwill) [Abstract] Concentration of Credit or Market Risk [Axis] Concentration of Credit or Market Risk [Axis] Gross amount of recognized assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Entity Registrant Name Entity Registrant Name Cash flow hedge gain (loss) to be reclassified within 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Capital contribution from Lincoln National Corporation Stockholders' Equity, Contributions From Parent Stockholders' Equity, Contributions From Parent Ceded Credit Risk, Collateralization [Axis] Ceded Credit Risk, Collateralization [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 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. Change in market performance Separate Account, Liability, Increase (Decrease) from Invested Performance 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. Dividend expenses Policyholder Dividends, Expense Reinsurance ceded Reinsurance Ceded Of Market Risk Benefit Gain Loss Reinsurance Ceded Of Market Risk Benefit Gain Loss. Investment commitments for asset-backed variable interest entities Investment Commitments, Asset-Backed Variable Interest Entities Investment Commitments, Asset-Backed Variable Interest Entities Domestic Domestic Equity Fund [Member] Domestic Equity Fund 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 Total assets Assets, Fair Value Disclosure Total number of fixed maturity AFS securities in an unrealized loss position Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Claims Utilization Factor Measurement Input, Claims Utilization Rate [Member] Measurement Input Claims Utilization Rate [Member] 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. 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]. Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Schedule of Debt Schedule of Debt [Table Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Effects of Tax credits: Effective Income Tax Rate Reconciliation, Tax Credit, Percent [Abstract] Net amount Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction 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 Restatement Determination Date: Restatement Determination Date [Axis] Mortgage loans on real estate Mortgage Loans On Real Estate [Member] Mortgage Loans On Real Estate [Member] Stock compensation/issued for benefit plans Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture 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) Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Policyholder Account Balances, Funding Agreements Policyholder Account Balances, Funding Agreements [Member] Policyholder Account Balances, Funding Agreements 30-90 Days Maturity 30 to 90 Days [Member] Income Tax Expense (Benefit), Continuing Operations [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Guaranty liabilities Guaranty Liabilities Effect of changes in equity markets Market Risk Benefit, Increase (Decrease) from Equity Market Change Interest and debt expense Interest Expense, Debt Separate account liabilities Balance as of beginning-of-year Balance as of end-of-year Separate Account, Liability Name Trading Arrangement, Individual Name Embedded derivative asset Embedded Derivative, Fair Value of Embedded Derivative Asset Fees for management of general account Fees For Management Of General Account [Member] Fees For Management Of General Account [Member] Debt instrument, face amount Debt Instrument, Face Amount 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]. Name Awards Close in Time to MNPI Disclosures, Individual Name Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Investment commitments for limited partnerships Investment Commitments Limited Partnerships This item represents investment commitments as of the balance sheet date for limited partnerships. ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Closed end funds measured at NAV per share Alternative Investment Schedule of Financing Lease Maturity Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Ceded reinsurance contracts Ceded Reinsurance Contracts [Member] Ceded Reinsurance Contracts [Member] Resolution Life Resolution Life [Member] Resolution Life [Member] Income tax benefit (expense) Income tax benefit (expense) Other Comprehensive Income (Loss) before Reclassifications, Tax Insurance Premiums and Fee Income SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue 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. Auditor Firm ID Auditor Firm ID Reporting Segment [Domain] Segments [Domain] Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Fixed maturity AFS securities Fixed Maturities [Member] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Amortization of deferred gain (loss) on business sold through reinsurance Amortization Of Deferred Gain On Business Sold Through Reinsurance The amortization of net deferred gain (loss) on indemnity reinsurance transactions. 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 Fair Value Plan Asset Measurement [Domain] Fair Value Hierarchy and NAV [Domain] Assets Sold under Agreements to Repurchase, Maturity Period [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Investment activity Deferred Tax Liabilities, Investments 2029 Present Value of Future Insurance Profits, Expected Amortization, Year Four U.S. cash dividends to LNC Dividends To Parent Company This element represents dividends paid to the common parent company by its domestic life insurance subsidiaries. New Accounting Standards Accounting Standards Update and Change in Accounting Principle [Table Text Block] Accrued interest receivable on fixed maturity AFS securities Debt Securities, Available-for-Sale, Accrued Interest Writeoff Financial Assets Derivative Asset [Abstract] Other tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Unrealized Gain (Loss) on Fixed Maturity AFS Securities and Certain AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Collateral Posted by Counterparty Cash collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Policyholder account balances Balance as of beginning-of-year Balance as of end-of-year Policyholder account balance Policyholder Account Balance Summary of Weighted-Average Interest Rates Summary Of Weighted-Average Interest Rates [Table Text Block] Summary of Weighted-Average Interest Rates. Excess of loss reinsurance agreements Excess Of Loss Reinsurance Treaties [Member] Excess Of Loss Reinsurance Treaties [Member] Gross amounts offset Gross amounts offset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset State and municipal bonds US States and Political Subdivisions Debt Securities [Member] Effect of changes in equity index volatility Market Risk Benefit, Increase (Decrease) from Volatility Transfers from (to) separate accounts, net Transfers To And From Separate Accounts, Net Transfers to and from separate accounts, net. Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Subordinated Debt Subordinated Debt [Member] Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] All Executive Categories All Executive Categories [Member] Amortization DAC amortization Deferred Policy Acquisition Costs, Amortization Expense Significant Components of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Total insurance premiums and fee income Insurance premiums Premiums Earned, Net 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 Derivatives designated as hedging instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Interest credited Policyholder Account Balance, Interest Expense (Recovery) Policyholder Account Balance, Interest Expense (Recovery) 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] Contingencies and Commitments (See Note 17) Commitments and Contingencies 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. Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] 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] 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. Statutory accounting practices, statutory amount available for dividend payments Statutory Accounting Practices, Statutory Amount Available for Dividend Payments 6.56% surplus note, due 2028 Surplus Note6.56 Due2028 [Member] Surplus Note 6.56%, Due 2028 [Member] Market risk benefit non-performance risk gain (loss) OCI, Market Risk Benefit, Instrument-Specific Credit Risk, Gain (Loss), after Adjustments, Tax Net Investment Income Investment Income [Table Text Block] Other Policyholder Account Balance Guaranteed Minimum Crediting Rate Range Other [Member] Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range Other [Member]. New Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Maturity period Long-Term Debt, Term Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Derivative investments Derivative Financial Instruments, Assets [Member] Deposits Deposits Of Fixed Account Values Including Fixed Portion of Variable Deposits of fixed account values, including the fixed portion of variable. 60 to 89 days past due Financial Asset, 60 to 89 Days Past Due [Member] Hedging Designation [Axis] Hedging Designation [Axis] Effects of Qualifying and Non-Qualifying Hedges Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Undiscounted Liability For Future Policy Benefit, Undiscounted, Befiore Reinsurance [Abstract] Liability For Future Policy Benefit, Undiscounted, Befiore Reinsurance Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] 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] Surplus notes Surplus Notes Future Contract Benefits Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] Funded status of employee benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax California CALIFORNIA Discounted Liability For Future Policy Benefit, Discounted, Befiore Reinsurance [Abstract] Liability For Future Policy Benefit, Discounted, Befiore Reinsurance Derivative Contract Type [Domain] Derivative Contract [Domain] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] LNBAR Lincoln National Reinsurance Company Barbados [Member] Lincoln National Reinsurance Company (Barbados) [Member] Gross losses Debt Securities, Available-for-Sale, Realized Loss Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Name Forgone Recovery, Individual Name Change in fair value of embedded derivatives Unrealized Gain (Loss) on Derivatives Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward] Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward] Market risk benefit assets Assets Market Risk Benefit, Asset, Amount 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] Fixed maturity available-for-sale securities, at fair value Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss [Abstract] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Sales and maturities (purchases) of trading securities, net Proceeds from (Payments for) Trading Securities, Short-Term Other assets – ceded MRBs Market Risk Benefit, Asset [Member] Market Risk Benefit, Asset Withdrawals Separate Account, Liability, Withdrawal Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] 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. Liability for Future Policy Benefit Activity [Table] Liability for Future Policy Benefit Activity [Table] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] 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 Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Geographical [Axis] Geographical [Axis] Cumulative Basis Adjustments for Fair Value Hedges Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Financial Liabilities Derivative Liability [Abstract] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] 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 Statutory Accounting Practices [Table] Statutory Accounting Practices [Table] Tax credits Deferred Tax Assets, Tax Credit Carryforwards Operating revenues Operating Revenues Operating Revenues 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. 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 Capital losses Deferred Tax Assets, Capital Loss Carryforwards Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Interest accretion rate Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate 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) Premiums Written SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written Net cash paid (received) for: Income Taxes Paid, Net [Abstract] Supplemental Non-Cash Information Supplemental Non-Cash Flow Information [Abstract] Supplemental Non-Cash Flow Information Premium expected to be collected Financial Guarantee Insurance Contracts, Premium Receivable, Premium Expected to be Collected Details Underlying Commissions and Other Expenses Details Underlying Commissions And Other Expenses [Table Text Block] Discloses the underlying components of commissions and other expenses. Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] Future principal payments due on long-term debt Long-Term Debt, Fiscal Year Maturity [Abstract] Deferred Policy Acquisition Cost [Table] Deferred Policy Acquisition Cost [Table] Amortization of deferred gain (loss) on reinsurance contracts Amortization Of Deferred Gain Arising From Reserve Changes On Business Sold Through Reinsurance Pre Tax [Member] Amortization of deferred gain arising from reserve changes on business sold through reinsurance, pre-tax Foreign tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount Statutory Accounting Practice, Jurisdiction [Domain] Statutory Accounting Practice, Jurisdiction [Domain] 2030 Lessee, Operating Lease, Liability, to be Paid, Year Five Ceded to Other Companies SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Ceded 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] Tax credit carryforward, amount Tax Credit Carryforward, Amount Embedded Derivative Instruments Embedded Derivative Financial Instruments [Member] Schedule of Policyholder Account Balances Schedule of Policyholder Account Balances [Table Text Block] Schedule of Policyholder Account Balances SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] Balance as of end-of-year, net of reinsurance Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Thereafter Finance Lease, Liability, to be Paid, after Year Five Award Timing Disclosures [Line Items] Amortized cost of portfolio rated below investment grade Amortized Cost Of Portfolio Rated Below Investment Grade Amortized cost of portfolio rated below investment grade. Fair Value Assets and Liabilities Measured on Recurring Basis Level 3 Activity [Table] Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table] 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 Indiana INDIANA 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. 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 Reinsurance Reinsurance [Text Block] Net income (loss) Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Lincoln National Corporation Lincoln National Corporation [Member] Lincoln National Corporation Net increase (decrease) in fixed maturity AFS securities, other investments and accrued investment income in connection with reinsurance activity Increase (Decrease) In Securities And Accrued Investment Income In Connection With Non-Cash Reinsurance Transactions Increase (Decrease) In Securities And Accrued Investment Income In Connection With Non-Cash Reinsurance Transactions White Chapel V LLC White Chapel V LLC [Member] White Chapel V LLC Reconciliation of the Effective Tax Rate Differences Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Net transfers from (to) separate account Transfer to (from) Policyholder Account Balance (to) from Separate Account Future contract benefits Net balance as of end-of-period Liability for Future Policy Benefit, before Reinsurance Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Debt-Service Coverage Ratio Debt-Service Coverage Ratio [Abstract] Debt-Service Coverage Ratio Adoption Date Trading Arrangement Adoption Date Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Net premiums collected Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected Assumed from Other Companies SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Assumed Reductions for securities charged off Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Total income (loss) from operations Operating Income (Loss) 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. VOCRA Customer Relationships [Member] FLORIDA FLORIDA Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Retained earnings (deficit) Retained Earnings (Accumulated Deficit) 4.20% surplus note, due 2037 Surplus Note4.20 Due2037 [Member] 4.20% Surplus Note, Due 2037 [Member] Number of Securities Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] Indexed product derivative results Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Residential Residential Portfolio Segment [Member] 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. Compensation Expense by Award Type Share-Based Payment Arrangement, Cost by Plan [Table Text Block] At Guaranteed Minimum Policyholder Account Balance, at Guaranteed Minimum Crediting Rate [Member] 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] 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 Withdrawals Withdrawals Of Fixed Account Values Including Fixed Portion Of Variable Withdrawals of fixed account values, including the fixed portion of variable. 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. Unrealized Gain (Loss) on Derivative Instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Accident and health insurance (3) Accident and Health Insurance Product Line [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] MRB Gain (Loss) Market Risk Benefit, Gain (Loss) [Policy Text Block] MRB Gain (Loss) policy. Other Deferred Tax Liabilities, Other Credit Derivatives [Line Items] Credit Derivatives [Line Items] Statement [Table] Statement [Table] Premiums Utilization Factor Measurement Input, Premiums Utilization Rate [Member] Measurement Input Premiums Utilization Rate [Member] Lender Concentration Risk Lender Concentration Risk [Member] Cash Flows from Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] 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] All other corporate bonds Other Corporate Bonds [Member] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] Nontaxable or nondeductible items: Effective Income Tax Rate Reconciliation, Nontaxable Or Nondeductible, Amount [Abstract] Effective Income Tax Rate Reconciliation, Nontaxable Or Nondeductible, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Tax credit carryforward, valuation allowance Tax Credit Carryforward, Valuation Allowance Interest accretion Liability for Future Policy Benefit, Interest Expense Net amount of liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral 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 Amendment Flag Amendment Flag Recognized tax benefit Share-Based Payment Arrangement, Expense, Tax Benefit Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Termination Date Trading Arrangement Termination Date Amortization of deferred loss on reinsurance contracts Amortization Of Deferred Loss On Reinsurance Contracts [Member] Amortization Of Deferred Loss On Reinsurance Contracts 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 Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] 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 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] Unrealized holding gains (losses) 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) Weighted average discount rate, operating lease Operating Lease, Weighted Average Discount Rate, Percent SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table] Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table] Collateral payable for derivative investments Collateral Payable Held For Derivative Investments Fair Value The fair value of cash received as collateral from a counterparty. UL and Other UL And Other [Member] Ul and Other [Member] Unrecognized tax benefits, income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued SOFR + 200 bps surplus note, due 2035 Surplus Note200 Bps Due2035 [Member] 200 bps Surplus Note, Due 2035 [Member] Bond funds Separate Account, Bond Fund [Member] Separate Account, Bond Fund Supplemental Disclosures of Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Related Party Transaction [Domain] Related Party Transaction [Domain] Gross amount of recognized assets Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement Repayment and maturities of mortgage loans on real estate Repayment And Maturities Of Mortgage Loans On Real Estate The cash inflow associated with the repayment and/or maturities of mortgage loans on real estate. Segment Reporting [Abstract] Market Risk Benefit [Roll Forward] Market Risk Benefit [Roll Forward] Debt Disclosure [Abstract] 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 Income tax benefit (expense) Reclassification from AOCI, Current Period, Tax Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance 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] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Reclassification adjustment for gains (losses) included in net income (loss) Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Range of guaranteed minimum crediting rate Policyholder Account Balance, Guaranteed Minimum Credit Rating Fair Value, Separate Account Investment [Line Items] Fair Value, Separate Account Investment [Line Items] Unrealized holding losses arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Issuances Liability for Future Policy Benefit, Expected Net Premium, Issuance Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Consolidated Entities [Axis] Consolidated Entities [Axis] Policyholder liability remeasurement (gain) loss Total policyholder liability remeasurement (gain) loss Liability for Future Policy Benefit, Remeasurement Gain (Loss) Realized gain (loss) on equity securities Equity Securities, FV-NI, Realized Gain (Loss) Reinsurance ceded Policyholder Benefits and Claims Incurred, Assumed and Ceded Derivative instruments and equity indexed reserves Derivative Instruments And Equity Indexed Reserves [Member] Derivative Instruments And Equity Indexed Reserves [Member] Number Of Reportable Segments Disclosed By Definition Flag Number Of Reportable Segments Disclosed By Definition Flag Number Of Reportable Segments Disclosed By Definition Flag Amount drawn Line of Credit Facility, Fair Value of Amount Outstanding Accounting Estimates and Assumptions Use of Estimates, Policy [Policy Text Block] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral [Table] Dividends paid to Lincoln National Corporation Payments of Dividends Income tax benefit (expense) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Summary of Reconciliation of Future Contract Benefits Summary Of Reconciliation Of Future Contract Benefits [Table Text Block] Reconciles Future Contract Benefits Future Contract Benefits SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense Gross amounts offset Gross amounts offset Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Insider Trading Arrangements [Line Items] Year six and prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Equity securities Equity Securities [Member] Current Financial Asset, Not Past Due [Member] Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract] Allowance for credit losses Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Balance as of beginning-of-year Balance as of end-of-period Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest 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. Net amount at risk Market Risk Benefit, Net Amount at Risk Total liabilities Liabilities 2030 Finance Lease, Liability, to be Paid, Year Five Common stock – 10,000,000 shares authorized, issued and outstanding Common Stock, Value, Outstanding Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] 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. Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Equity funds: Separate Account, Equity Security [Member] Premiums received on assumed (paid on ceded) reinsurance contracts Premiums Received On Assumed Paid On Ceded Reinsurance Contract [Member] Premiums Received On Assumed (Paid On Ceded) Reinsurance Contract [Member] 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] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Gross premiums Gross assessments Liability for Future Policy Benefit, Gross Premium Income Non-cash collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Fair Value, Separate Account Investment [Table] Fair Value, Separate Account Investment [Table] 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. ABS Asset-Backed Securities [Member] Consolidation Items [Axis] Consolidation Items [Axis] 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]. Fair Value Inputs Quantitative Information Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] Summary of Balances and Changes in Policyholder Account Balances Policyholder Account Balance [Table Text Block] Counterparty Name [Axis] Counterparty Name [Axis] Deferred Tax Liabilities Components of Deferred Tax Liabilities [Abstract] Gross investment income Gross Investment Income, Operating Policyholder assessments Separate Account, Liability, Policy Charge Market Risk Benefit [Table] Market Risk Benefit [Table] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] 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 UNITED STATES