Entity tax identification number Entity Tax Identification Number Dividend income, plan, pro-rata share EBP, Dividend Income, Plan Pro-Rata Share EBP, Dividend Income, Plan Pro-Rata Share Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum Maximum [Member] Forfeitures used to pay administrative expenses EBP, Forfeited Nonvested Account, Decrease from Administrative Expense Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual funds Total mutual funds Mutual Fund [Member] Investment Contract EBP, Traditional Guaranteed Investment Contract [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Participant contribution, maximum percentage of eligible earnings EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Brokerage account EBP, Self-Directed Brokerage Account [Member] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Notes receivable from participants, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Notes receivable from participants, minimum borrowing amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Employer contribution vesting service period EBP, Employer Contribution Vesting Service Period EBP, Employer Contribution Vesting Service Period EBP, Fully Benefit-Responsive Investment Contract [Abstract] Investments, at fair value Total investments, at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Money market funds Money Market Funds [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] LNL Investment Contract EBP, Fully Benefit-Responsive Investment Contract [Text Block] EBP, Investment, Fair Value and NAV [Abstract] Involuntary cash-out limit EBP, Involuntary Cash-out Limit EBP, Involuntary Cash-out Limit Assets EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Benefit Payments EBP, Payment to Participant [Policy Text Block] Net transfers from (to) affiliated plans EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan Note receivable from participant, maximum number of notes outstanding per participant EBP, Note Receivable From Participant, Maximum Number Of Notes Outstanding Per Participant EBP, Note Receivable From Participant, Maximum Number Of Notes Outstanding Per Participant Amendment Flag Amendment Flag Basis of Presentation EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Plan's pro-rata share of employer common stock EBP, Investment, Employer, Common Stock Held By Plan To Common Stock Held By All Plans EBP, Investment, Employer, Common Stock Held By Plan To Common Stock Held By All Plans Investment, number of shares (in shares) EBP, Investment, Number of Shares EBP, Description of Plan and Accounting Change [Abstract] Participant loan, cost EBP, Asset Held for Investment, Participant Loan, Cost EBP, Asset Held for Investment, Participant Loan, Cost Summary of Fair Value of Investments EBP, Investment, Fair Value and NAV [Table Text Block] Investments [Domain] Investments [Domain] Accounting Estimates and Assumptions EBP, Use of Estimate [Policy Text Block] Schedule H, Line 4i – Schedule of Assets (Held At End of Year) EBP, Schedule of Asset Held for Investment [Text Block] EBP, Change In Net Asset Available For Benefit, Including Plan Transfers, Increase (Decrease) EBP, Change In Net Asset Available For Benefit, Including Plan Transfers, Increase (Decrease) EBP, Change In Net Asset Available For Benefit, Including Plan Transfers, Increase (Decrease) Cover [Abstract] Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP 009 EBP 009 [Member] EBP 009 Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Net appreciation (depreciation) of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividends EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Plan number EBP, Plan Number Note receivable from participant maximum borrowing reduction for outstanding loans, period EBP, Note Receivable From Participant, Account, Maximum Borrowing Reduction For Outstanding Loans, Period EBP, Note Receivable From Participant, Account, Maximum Borrowing Reduction For Outstanding Loans, Period EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Description of the Plan EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] Investment interest income EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] LNC common stock Common stock EBP, Employer, Common Stock [Member] Employer contribution maximum vesting age EBP, Employer Contribution Maximum Vesting Age EBP, Employer Contribution Maximum Vesting Age EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Notes receivable from participants, primary residence, maximum borrowing term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP., Employer Core Contribution EBP., Employer Core Contribution [Member] EBP., Employer Core Contribution Net investment income (loss): EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Total assets EBP, Asset Held for Investment Employer core contribution percentage EBP, Employer Contribution, Percentage EBP, Employer Contribution, Percentage Document Information [Line Items] Document Information [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Employer contribution match, percentage of participants contribution EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Tax Status [Table] EBP, Tax Status [Table] Net increase (decrease) before transfer of assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Contributions receivable from Employer EBP, Employer Contribution, Receivable Plan participant, automatic contribution rate EBP, Participant Contribution, Automatic, Deferral Rate EBP, Employer Contribution Type [Axis] EBP, Employer Contribution Type [Axis] EBP, Employer Contribution Type Dividend income EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Benefits paid to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Total investments EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] EBP, Tax Status [Abstract] EBP, Employer, Common Stock Fund EBP, Employer, Common Stock Fund [Member] Administrative Expenses EBP, Expense [Policy Text Block] Participant loans EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investments Valuation and Income Recognition EBP, Investment [Policy Text Block] Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type EBP, Employer Contribution Type [Domain] EBP, Employer Contribution Type [Domain] EBP, Employer Contribution Type [Domain] Entity Central Index Key Entity Central Index Key Participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Investments: EBP, Investment, Fair and Contract Value [Abstract] Total collective investment trusts Common Collective Trust [Member] EBP, Risk and Uncertainty [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Deductions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Forfeitures used to reduce Employer contributions EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Notes receivable from participants EBP, Note Receivable from Participant Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Notes receivable from participants, origination fee EBP, Note Receivable From Participant, Loan Origination Fee EBP, Note Receivable From Participant, Loan Origination Fee Concentration of investment at fair value to net assets EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Net Assets, Percentage Income Tax Status EBP, Tax Status [Text Block] Notes receivable from participants, maximum borrowing as a percentage of total vested account balance EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Document Information [Table] Document Information [Table] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total net investment income (loss) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Net assets available for benefits Net Asset Available for Benefit, Beginning-of-year Net Asset Available for Benefit, End-of-year EBP, Net Asset Available for Benefit Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] LNL investment contract, at contract value EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Unallocated forfeitures EBP, Forfeited Nonvested Account Employer contribution matching percentage EBP, Employer Contribution, Matching Percentage Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Notes receivable from participants, general loan, borrowing term EBP, Note Receivable From Participant, General Loan, Borrowing Term EBP, Note Receivable From Participant, General Loan, Borrowing Term EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]